cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integrated CMOS Non Reciprocal Components for Full Duplex and 5G mm Wave Applications Slides
Creators: Harish Krishnaswamy
Publisher: name: IEEE
Year: 2019

MTT Webinar Slides
Lorentz reciprocity is a fundamental property of linear time-invariant passive circuits and systems constructed from conventional materials. However, non-reciprocal components, such as circulators, enable new wireless communication paradigms, such as full duplex wireless. Conventionally, non-reciprocal circulators have been realized using ferrite materials that exhibit the magneto-optic Faraday effect, and are consequently incompatible with CMOS, bulky, and expensive. Recent research has shown that reciprocity can be broken and non-reciprocal circulators can be built in CMOS using linear periodically time-varying (LPTV) circuits. This represents an interesting and unique property of LPTV circuits beyond the traditionally exploited tunable high-quality filtering in the so-called “N-path filters”. We will describe the fundamental physical principles, as well as three generations of CMOS circulators and circulator-based wireless systems that target emerging full-duplex and 5G millimeter-wave applications.
Bloggers Behavior and Emergent Communities in Blog Space
Creators: name: Mitrović, Marija
name: Tadić, Bosiljka
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computers and Society (cs.CY)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Interactions between users in cyberspace may lead to phenomena different from those observed in common social networks. Here we analyse large data sets about users and Blogs which they write and comment, mapped onto a bipartite graph. In such enlarged Blog space we trace user activity over time, which results in robust temporal patterns of user--Blog behavior and the emergence of communities. With the spectral methods applied to the projection on weighted user network we detect clusters of users related to their common interests and habits. Our results suggest that different mechanisms may play the role in the case of very popular Blogs. Our analysis makes a suitable basis for theoretical modeling of the evolution of cyber communities and for practical study of the data, in particular for an efficient search of interesting Blog clusters and further retrieval of their contents by text analysis.
Tofacitinib enhances remyelination and improves myelin integrity in cuprizone-induced mice
Creators: name: Günaydın, Caner
name: Önger, M. Emin
name: Avcı, Bahattin
name: Bozkurt, Ayhan
name: Terzi, Murat
name: Bilge, S. Sırrı
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Demyelination and subsequent remyelination are well-known mechanisms in multiple sclerosis (MS) pathology. Current research mainly focused on preventing demyelination or regulating the peripheral immune system to protect further damage to the central nervous system. However, information about another essential mechanism, remyelination, and its balance of the immune response within the central nervous system’s boundaries is still limited. In this study, we tried to demonstrate the effect of the recently introduced Janus kinase (JAK)-signal transducer and activator of transcription (STAT) inhibitor, tofacitinib, on remyelination.Demyelination was induced by 6-week cuprizone administration, followed by 2-week tofacitinib (10, 30, and 100 mg/kg) treatment. At the functional level, tofacitinib improved cuprizone-induced decline in motor coordination and muscle strength, which were assessed by rotarod and hanging wire tests. Tofacitinib also showed anti-inflammatory effect by alleviating the cuprizone-induced increase in the central levels of interferon-γ (IFN-γ), interleukin (IL)-6, IL-1β, and tumor necrosis alpha (TNF-α). Furthermore, tofacitinib also suppressed the cuprizone-induced increase in matrix metalloproteinases (MMP)-9 and MMP-2 levels. Additionally, cuprizone-induced loss of myelin integrity and myelin basic protein expression was inhibited by tofacitinib. At the molecular level, we also assessed phosphorylation of STAT-3 and STAT-5, and our data indicates tofacitinib suppressed cuprizone-induced phosphorylation in those proteins. Our study highlights JAK/STAT inhibition provides beneficial effects on remyelination via inhibition of inflammatory cascade.
A new model for community care: the role of the teacher and of the socio-pedagogical educator in networking
Creators: name: Benetton, Mirca
Publisher: name: Annali online della Didattica e della Formazione Docente
Year: 2023

description: Abstract – It seems extremely important today that educational social work should be recognised and valorised as an effectual element of possible rebirth and re-education, in a society that seems to have completely lost the coordinates for human living. The goal underlying the logic of educational aid is therefore to support the process of shaping the growth and progress of the student-person through a phenomenological-constructivist perspective aimed at defining a generative welfare such as can also overcome the current crisis of communication and link the different systems with which the person relates, which change the person in question, and which are themselves changed by that same person. Schools likewise must be aware of the importance of operating in the sphere of education and training through a social-relational network approach, and of the need for the educational community to be built up responsible, and an authentic life plan developed for every individual. Accordingly, it seems that education and training plans can no longer be thought of simply as the delivery of single services by individual experts, but rather, as the activation of relational pathways allowing mutual interaction and shared problem-solving. Given this scenario, the intention is, in particular, to examine the contribution of the socio-pedagogical educator and its fundamental role in activating “networked care”, across a “broader” school education, looking also at possibilities for dialogue with regard to how such a networked relational approach might be developed in international education and school settings.
description: Annali online della Didattica e della Formazione Docente, V. 15 N. 26 (2023): Miscellanea
Local and Temporal Prepositions in Ihanzu
Creators: name: Wiebe, Peter
Publisher: name: Zenodo
Year: 2022
Subjects: Languages of Tanzania
Tanzanian Rift Valley
Ihanzu
Takama
Bantu
Prepositions

description: A discussion of local and temporal prepositions in Ihanzu, based on data collected with Nicolas Nalingigwa Gideon during the course "Linguistic Field Methods".
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Wiebe, Peter. 2022. Local and Temporal Prepositions in Ihanzu. Talk given at the Ihanzu Symposium, Bielefeld University, Germany. 29/09/2022.
Microwave Near Field Imaging in Real Time Slides
Creators: Natalia Nikolova
Publisher: name: IEEE
Year: 2018

MTT Webinar Slides
In the last decade, we have witnessed dramatic decrease in the price and size of microwave electronics along with the advent of the radio-on-a-chip (RoC), the software-defined radio (SDR), and the single-chip radars. This has spurred unprecedented growth in applications such as imaging, sensing and detection. From automotive radar to medical diagnostics and concealed-weapon detection, microwave imaging and detection define the next wireless revolution. We will introduce the methods of microwave imaging, which allow to “see” inside optically opaque objects. A brief summary of the models used to describe the wave propagation inside the imaged object are presented. We also discuss how these properties can be deduced from the measurements and presented in the form of 3D images. The inner workings of one prominent imaging method, namely, microwave holography is presented.
Metodologie per l’orientamento consapevole tra innovazione didattica e riflessività professionale: percorsi di formazione per docenti di scuola secondaria
Creators: name: Bassi, Miriam
name: Cardone, Severo
Publisher: name: Annali online della Didattica e della Formazione Docente
Year: 2023

description: Riassunto – Le aule scolastiche rappresentano un ambiente di apprendimento privilegiato non soltanto per l’acquisizione di conoscenze disciplinari, bensì anche per il potenziamento negli studenti di skills di tipo trasversale, competenze personali e sociali indispensabili per la costruzione di identità “sane”, mature e consapevoli in grado di perseguire intenzionalmente il personale proposito di vita e proiettarsi con maggiore efficacia nel futuro. Gli insegnanti della scuola secondaria, nella veste di attivatori e facilitatori di riflessioni, interazioni e decisioni, sono chiamati a ricoprire un ruolo centrale di supporto e accompagnamento degli studenti in un processo generativo e trasformativo finalizzato a promuovere maggiore autoconsapevolezza, una pianificazione efficace dei propri obiettivi e lo sviluppo di competenze emotive e trasversali.
description: Annali online della Didattica e della Formazione Docente, V. 15 N. 26 (2023): Miscellanea
La lezione con storytelling digitale: per una narratività relazionale ed inclusiva attraverso la Rete
Creators: name: Arsena, Angela
Publisher: name: Annali online della Didattica e della Formazione Docente
Year: 2023

description:  Riassunto – L’articolo indaga le condizioni epistemiche di una lezione digitale innovativa e inclusiva. A partire dal contenitore scolastico inteso come luogo di narratività e di relazione con l’altro da sé, sempre diverso e sempre nuovo, l’autrice si sofferma sulla pratica didattica del digital storytelling come pratica aperta e inclusiva per antonomasia, sulla falsa riga del circolo ermeneutico. È chiaro che il digital storytelling, soprattutto se dovesse entrare nella formazione continua degli insegnanti, si pone come luogo ermeneutico ed epistemico dove realizzare singoli frames di inclusività e di accoglienza reciproca.

 
description: Annali online della Didattica e della Formazione Docente, V. 15 N. 26 (2023): Miscellanea
Criticality assessment of green materials: institutional quality, market concentration and recycling potential
Creators: name: Mazzarano, Matteo
Publisher: name: European Journal of Social Impact and Circular Economy
Year: 2021

description: The carbon transition and digitalization transformation are tied to a set of critical raw materials (CRM). Energy accumulators, renewable energy modules, and electronic devices all contain a certain amount of these. The versatility and utility of such elements come together with the limited number of countries where their extraction and refining take place. As the demand for these materials is growing globally, main concerns arise regarding the security of the production chain. Several works highlighted the risks associated with these materials without presenting clear interaction between such factors. This article presents a study over the three aspects showed: market concentration, institutional quality, and circularity. The approach will contain the presentation of the main characteristics of recyclability and the institutional status of exporters. A synthetic index is derived and plotted against the potential of recycling per material. In such a manner, we can group minerals according to sourcing vulnerability: one is coming from material recovery and the other via imports. An indicator calculated with a Cartesian distance method provides the synthesis of security versus safety. According to our findings, Electrical Vehicles carry the highest vulnerability for their main components in circularity and human rights violations. Ending remarks highlighted the limitations of our research, where possible interest for future research may lay.
description: European Journal of Social Impact and Circular Economy, Vol. 2 Núm. 3 (2021): Circular economy, social impact and digitalization: perspective and challenge
GUT Inflation and Proton Decay after WMAP5
Creators: name: Rehman, Mansoor Ur
name: Shafi, Qaisar
name: Wickman, Joshua R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We employ Coleman-Weinberg and Higgs potentials to implement inflation in non-supersymmetric grand unified theories (GUTs) such as SU(5) and SO(10). To realize a scalar spectral index close to 0.96, as indicated by the most recent WMAP 5-year anlaysis, the energy scale of observable inflation turns out to be of order $10^{16}$ GeV. This implies a GUT symmetry breaking scale of similar magnitude, and proton lifetime of order $10^{34}$-$10^{38}$ years. In some SO(10) models with axion dark matter, the scalar leptoquark boson exchange leads to proton decay with a lifetime of order $10^{34}$-$10^{35}$ years.
description: 15 pages, 4 figures
Engaging Your Non Specialist Non Technical Listener in Just Three Minutes Slides
Creators: John Bandler
Erin Kiley
Daniel Tajik
Publisher: name: IEEE
Year: 2017

MTT Webinar Slides
In three minutes or less, supported by just one slide, competitors must engage a general audience with their technical work, capturing the listeners’ non-specialist imaginations, providing them with tangible takeaways, and even inspiring them to ask for more! That’s what the IMS 3MT® Competition is all about. Jargon-filled enthusiasm is not enough to hold anyone’s attention for any length of time. To truly engage is effortful: it takes practice and empathy. It’s a challenge. In this Webinar, we will dissect Canxiu Zhang’s winning 3MT®presentation, entitled “Brainwave Analysis for Stroke Detection,” originally delivered at McMaster University’s Department of Electrical and Computer Engineering competition in 2018.”
title: Trajektorienplanung und Fahrzeugführung für hochautomatisiertes Fahren auf der Autobahn
Creators: name: Schucker, Jeremias
Publisher: name: UNSPECIFIED
Year: 2020

description: Der nächste große Schritt des automatisierten Fahrens ist die vollständige Ersetzung des menschlichen Fahrers durch ein Assistenzsystem. Die zu entwickelnden Systeme müssen demzufolge u. a. in der Lage sein, ihre zukünftige Handlung zu planen und diese zielgerichtet umzusetzen. Hierfür bietet es sich an, das System in zwei Komponenten zu unterteilen: die Trajektorienplanung und die Fahrzeugführung. Die Aufgabe der Trajektorienplanung ist es, einen sicheren Pfad in Abhängigkeit der Zeit, die Trajektorie, zu planen. Die Fahrzeugführung wiederum übernimmt sowohl die Längs- als auch die Querführung des Fahrzeugs und gewährleistet ein sicheres Folgender Trajektorie. In dieser Arbeit werden für beide Komponenten Lösungskonzepte entwickelt und prototypisch in einem Versuchsfahrzeug umgesetzt. Die Betrachtungen beschränken sich dabei auf den Anwendungsfall einer Autobahnfahrt inklusive Auf- und Abfahrmanöver. Um eine vorausschauende Planung zu ermöglichen, besteht die geplante Trajektorie aus bis zu drei Segmenten. Diese können z. B. bei einem Fahrstreifenwechsel dazu genutzt werden, um im ersten Segment die Lücke gezielt anzufahren, im zweiten Segment den eigentlichen Fahrstreifenwechsel durchzuführen und im letzten Segment die Weiterfahrt zu planen. Innerhalb eines Segments besteht die Trajektorie aus je einem Polynom in Längs- und einem Polynom in Querrichtung. Die Trajektorie ergibt sich als Lösung eines Optimierungsproblems. Um das Optimum zu bestimmen, wird der Lösungsraum diskretisiert, wodurch sich eine diskrete Menge an Lösungstrajektorien ergibt. Aus dieser Menge wird die beste Lösungstrajektorie anhand einer Kostenfunktion ausgewählt. Ergänzt wird das Konzept der Trajektorienplanung durch ein Konzept zum Fahrstreifenwechselabbruch. Dieses entscheidet in kritischen Situationen, ob es sicherer ist, einen Fahrstreifenwechsel abzubrechen oder fortzuführen. Im Rahmen der Fahrzeugführung wurden zwei Konzepte untersucht. Das erste Konzept, die Exakte Eingangs-Ausgangs-Linearisierung, basiert auf einer nichtlinearen Rückführung, die die Nichtlinearitäten des Systems kompensiert und die Ausgänge voneinander entkoppelt. Dadurch ist es möglich, für jeden Ausgang einen linearen Folgeregler zu entwerfen. Für das zweite Konzept wird das System zunächst entlang der Trajektorie linearisiert, wodurch sich ein zeitvariantes lineares Modell ergibt. Für dieses wird ein zeitvarianter Riccati-Regler entworfen und durch eine inversionsbasierte Vorsteuerung ergänzt.
Mopra line survey mapping of NGC6334I and I(N) at 3mm
Creators: name: Walsh, A. J.
name: Thorwirth, S.
name: Beuther, H.
name: Burton, M. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A 5'x5' region encompassing NGC6334I and I(N) has been mapped at a wavelength of 3mm (from 83.5 to 115.5GHz) with the Mopra telescope at an angular resolution between 33 arcsec and 36 arcsec. This investigation has made use of the recently installed 3mm MMIC receiver and the Mopra Spectrometer (MOPS) with broadband capabilities permitting total coverage of the entire frequency range with just five different observations. In total, the spatial distribution of nineteen different molecules, ions and radicals, along with additional selected isotopologues have been studied. Whilst most species trace the sites of star formation, CH_3CN appears to be most closely associated with NGC6334I and I(N). Both CN and C_2H appear to be widespread, tracing gas that is not associated with active star formation. Both N_2H^+ and HC_3N closely resemble dust continuum emission, showing they are reliable tracers of dense material, as well as the youngest stages of high mass star formation. Hot (E_u/k>100K) thermal CH_3OH emission is preferentially found towards NGC6334I, contrasting with I(N), where only cold (E_u/k<22K) thermal CH_3OH emission is found.
description: Accepted by MNRAS
(Gamma minus) radiolytic generation of polysulphide from aqueous sodium sulphide solutions.
Creators: name: You, Young-Soo
Publisher: name: University of British Columbia
Year: 2011

description: The mechanism of polysulphide formation by γ-radiation of aqueous sodium sulphide (Na₂S) solutions was investigated. The roles of solvated electron (ēaq ) and hydroxyl radicals (•OH), as primary products of water radiolysis, were studied in a systematic manner by using N₂O as ēaq and 2-propanol as •OH scavengers. Polysulphide formation in Na₂S solutions was found to be initiated by the oxidizing intermediate, the •OH radical. The scavenger experiments were supplemented by other studies on effects of solute concentration, dose at a single dose rate, pH, oxygen and hydrogen sulphide (H₂S) saturation. Rates of polysulphide formation increased according to presence of N₂O and H₂S, Na₂S concentration, irradiation dose and were highest at pH 7.0. In these experiments, highest polysulphide yield, 14 g/l, was obtained in the 80 g/l aq Na₂S-H₂S system at pH 12.7 and exposed for 20 Mrad dosage. The effect of oxygen was to increase radiation yield for lower dose ranges. At higher doses, however, G-values fluctuated markedly.
Average number of flips in pancake sorting
Creators: name: Cibulka, Josef
Publisher: name: arXiv
Year: 2009
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We are given a stack of pancakes of different sizes and the only allowed operation is to take several pancakes from top and flip them. The unburnt version requires the pancakes to be sorted by their sizes at the end, while in the burnt version they additionally need to be oriented burnt-side down. We present an algorithm with the average number of flips, needed to sort a stack of n burnt pancakes, equal to 7n/4+O(1) and a randomized algorithm for the unburnt version with at most 17n/12+O(1) flips on average. In addition, we show that in the burnt version, the average number of flips of any algorithm is at least n+Ω(n/log n) and conjecture that some algorithm can reach n+Θ(n/log n). We also slightly increase the lower bound on g(n), the minimum number of flips needed to sort the worst stack of n burnt pancakes. This bound, together with the upper bound found by Heydari and Sudborough in 1997, gives the exact number of flips to sort the previously conjectured worst stack -I_n for n=3 mod 4 and n>=15. Finally we present exact values of f(n) up to n=19 and of g(n) up to n=17 and disprove a conjecture of Cohen and Blum by showing that the burnt stack -I_{15} is not the worst one for n=15.
description: 21 pages, new computational results for unburnt pancakes (up to n=19)
DEGREE OF VERTICES AND NUMBER OF EDGES IN A MIXED GRAPH
Creators: name: Abdelkadir, Muzey Mohammed
Publisher: name: AMERICAN SERIAL
Year: 2024
Subjects: Graph
directed graphs
undirected graphs
mixed graph
degree of vertex
number of edges.

description: In the study of a graph theory, degrees of vertices and number of edges are among the important theoretical terms that are helpful in showing discrete structures and their properties. This study attempts to present the relationship between number of edges and degrees of vertices in a mixed graph.
Enabling the Third Wireless Revolution: Transformative RF/mm-Wave Circuits, Wireless Systems and Sensing Paradigms Slides
Creators: Harish Krishnaswamy
Publisher: name: IEEE
Year: 2018

MTT Webinar Slides
Over the past 30 years, we have reaped the benefits of two wireless communication revolutions, which have had significant social and economic impact. The period from 1990-2000 witnessed the mobile wireless communication revolution, with emergence of cellular mobile telephony enabling instant global connectivity. The period from 2000 to the present is witness to the mobile wireless data revolution, as 3G and 4G networks have brought the Internet to our fingertips. The next wireless revolution will be the mobile wireless-reality revolution, which will bring the physical world to our fingertips. RF, mm-Wave and terahertz communication, imaging and sensing devices will enable us to interrogate the physical world and create virtual or augmented worlds in ways that exceed and augment human sensory situational awareness. The wireless-reality revolution will require a quantum leap forward in our ability to control and manipulate the RF-to- THz electromagnetic spectrum, and in our ability to transmit, acquire, aggregate and process the associated data.  This webinar focused on recent research on high-power and energy-efficient millimeter-wave power amplifiers, transmitters and large-scale phased arrays that have drawn interest for next-generation 5G cellular networks and also extreme bandwidth(>20Gbps) communication links at millimeter-waves for applications such as virtual and augmented reality. Other novel wireless communication paradigms, including massive MIMO and full-duplex wireless, that enable extremely-high spectral efficiencies and data rates are presented. The realization of city-scale testbeds that deploy advanced wireless hardware supporting mm-Wave, massive MIMO and full-duplex operation, enabling higher-layer systems research at city scales are presented.
Antenna Techniques for Advanced Magnetic Resonance Imaging Slides
Creators: Abbas Omar
Publisher: name: IEEE
Year: 2018

MTT Webinar Slides
Imaging is constructing a two-dimensional or three-dimensional map of a certain physical property of the object to be imaged. There are different types of imaging, the well-known of which is photography, which maps the object surface optical reflectivity. A second example is acoustic imaging, in which the material density is the object physical property that is mapped. Microwave imaging on the other hand maps the permittivity and conductivity of the imaged object. Magnetic-Resonance Imaging (MRI) basically maps the concentration of the hydrogen nuclei in the imaged object. Almost all fundamental particles (electrons, protons … etc.) possess a characteristic spin magnetic moment. Applying a strong static magnetic field to an object, results in directing these spins parallel and anti-parallel to the applied magnetic field. This gives rise to two energy states, whose populations are governed by the laws of thermodynamics. If, in addition, an RF field of a certain frequency is properly applied for a certain time, the spins start to precess about the direction of the static magnetic field disturbing the thermodynamic equilibrium. During the process of restoring the thermodynamic equilibrium, the spins radiate an electro-magnetic field which can be received and used for constructing the MR images. The strength of the static magnetic field plays a key role in the quality and resolution of the obtained images. In this talk, the fundamentals of MRI are firstly presented. Technical aspects related to the generation and detection of the RF field are emphasized. One of these aspects is the design of RF coils capable of generating homogeneous magnetic field (homogeneous illumination) within the object to be imaged. We will discuss applying a number of well-known antenna techniques such as Beam Forming and Butler Matrix to advanced Magnetic Resonance Imaging. Special emphases are put on imaging systems utilizing high static magnetic fields for improving resolution.
Real-time steerable frequency-stepped Doppler Backscattering (DBS) System for local helicon wave electric field measurements on the DIII-D tokamak
Creators: name: Chowdhury, S.
name: Crocker, N. A.
name: Peebles, W. A.
name: Lantsov, R.
name: Rhodes, T. L.
name: Zeng, L.
name: Van Compernolle, B.
name: Tang, S.
name: Pinsker, R. I.
name: Torrezan, A. C.
name: Squire, J.
name: Rupani, R.
name: O'Neill, R.
name: Cengher, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A new frequency-stepped Doppler backscattering (DBS) system has been integrated with a real-time steerable electron cyclotron heating launcher to probe local background turbulence (f<10 MHz) and high-frequency (20-550 MHz) density fluctuations in the DIII-D tokamak. The launcher enables 2D steering (horizontal and vertical) over wide angular ranges to optimize probe location and wavenumber response, with vertical steering adjustable in real time during discharges. The DBS system utilizes a programmable frequency synthesizer with adjustable dwell time, capable of stepping across the E-band frequency range (60-90 GHz) in real time, launching either O or X-mode polarized millimeter waves. This setup facilitates diagnosis of the complex spatial structure of high-power (>200 kW) helicon waves (476 MHz) during current drive experiments. Real-time scans reveal broadband density fluctuations around the helicon frequency, attributed to backscattering of the DBS millimeter wave probe from plasma turbulence modulated by the helicon wave. These fluctuations appear as high-frequency sidebands in the turbulence spectrum, effectively 'tagging' the background turbulence with the helicon wave's electric field. This method allows for monitoring local helicon wave amplitude by comparing high-frequency signal amplitude to background turbulence. Coupled with real-time scanning of measurement location and wavenumber, this allows for rapid helicon wave power distribution determination during steady-state plasma operation, potentially validating predictive models like GENRAY or AORSA for helicon current drive in DIII-D plasmas.
description: 14 Pages, 10 figs
Growth mode, magnetic and magneto-optical properties of pulsed-laser-deposited Au/Co/Au(111) trilayers
Creators: name: Clavero, César
name: Cebollada, Alfonso
name: Armelles, G.
name: Fruchart, Olivier
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The growth mode, magnetic and magneto-optical properties of epitaxial Au/Co/Au(111) ultrathin trilayers grown by pulsed-laser deposition (PLD) under ultra-high vacuum are presented. Sapphire wafers buffered with a single-crystalline Mo(110) bilayer were used as substrates. Owing to PLD-induced interfacial intermixing at the lower Co/Au(111) interface, a layer-by-layer growth mode is promoted. Surprisingly, despite this intermixing, ferromagnetic behavior is found at room temperature for coverings starting at 1 atomic layer (AL). The films display perpendicular magnetization with anisotropy constants reduced by 50% compared to TD-grown or electrodeposited films, and with a coercivity more than one order of magnitude lower ($\lesssim$ 5 mT). The magneto-optical (MO) response in the low Co thickness range is dominated by Au/Co interface contributions. For thicknesses starting at 3 AL Co, the MO response has a linear dependence with the Co thickness, indicative of a continuous-film-like MO behavior.
Paying Attention to What Matters: Individual Differences in Neural Correlates of Spatial Selective Attention in Heterogeneous Populations and Increasing Diversity, Inclusion, Equity, and Justice in STEM
Creators: name: Kwasa, Jasmine Akinyi
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: In life, we try to pay attention to what is important, whether it’s effortfully listening in a noisy environment or simply taking the time to care for another person. In this dissertation, I explore both the neuroscience of spatial selective attention and briefly highlight issues of socialjustice in STEM fields. Selective attention is used in complex sensory environments where, in order to hear or see an object of focus, one must effortfully attend to it and willfully ignore any sudden or ongoing distractions. Individual variability in performance on selective attention tasks can be large and often correlates with how strongly attention modulates neural responses. These processes relyupon both intact sensory systems and higher order cognitive systems (such as executive functioning) which tend to vary in the general population. In this dissertation, I seek to characterize inherent individual differences in selective attention and explore its neural basis using electroencephalography (EEG) and behavioral tasks.First, I compare performance during auditory and visual tasks that require subjects to sustain spatial selective attention. Despite matching the task characteristics, we find that differences in the noise characteristics of auditory and visually evoked neural responses have important consequences on measurement reliability and thus the appropriate neural metric to extract for each modality. Inthe end, spatial attention, in both modalities, changes neural responses, and these changes significantly predict performance on the task. Next, I compare neurotypical and ADHD adults on a spatial listening task to explore the roleof global cognitive deficits on selective attention. Subjects are cued to either only focus on a target voice amidst distractor voices or be prepared to switch attention quickly to an interrupting voice. We observe that neural responses to the interrupting voice is attentionally modulated by neurotypical but not ADHD subjects. And, as in the first experiment, the changes in these neural responses predict performance on the task. Finally, I talk about a different kind of attention: the care, protection, and promotion ofunderrepresented thinkers in STEM. I highlight three types of engagement that I believe will make the scientific enterprise a more diverse, inclusive, equitable, and just space. I explain barriers to access and exposure holding back students of color in STEM, particularly Black and low-income students and women. Then, I highlight retention and inclusion strategies at the university level that help maintain mental health and community bonds.
Additional file 2 of The strong competitive role of 2n pollen in several polyploidy hybridizations in Rosa hybrida
Creators: name: Gao, Shu-min
name: Yang, Mu-han
name: Zhang, Fan
name: Fan, Li-juan
name: Zhou, Yan
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Table S1. The DNA amounts of parents and F1 hybrids of ‘Orange Fire’ × ‘Old Blush’ detected by flow cytometry. Table S2. The DNA amounts of parents and F1 hybrids of ‘Chun Chao’ × ‘Slater’s Crimson China’ detected by flow cytometry. Table S3. The DNA amounts of parents and F1 hybrids of ‘DEE’ × ‘Slater’s Crimson China’ detected by flow cytometry. Table S4. The DNA amounts of parents and F1 hybrids of ‘DEE’ × ‘Old Blush’ detected by flow cytometry. Table S5. The 21 pairs of rose SSR primers used in paternity test. (DOCX 29 kb)
Nonlinear Microwave Circuits Part 1 Vector Nonlinear Microwave Measurements and Behavioral Modeling Slides
Creators: Patrick Roblin
Publisher: name: IEEE
Year: 2017

MTT Webinar Slides
In Part I of this Webinar, we will start with a review of vector large-signal microwave measurements for the acquisition of the phases and amplitudes of the multi-harmonic incident and reflected waves at the ports of a nonlinear device. The various types of NVNA architecture available, the procedure used to calibrate them and the calibration traceability will be presented. Next the behavioral models used for the representation of the measured multi-tone multi-harmonic data will be reviewed. This will include the general multi-harmonic Volterra functions for CW periodic nonlinear RF excitations, the X-parameter/S-function approximations for mildly nonlinear RF excitations and their extension for modulated multi-harmonic signals. Circuit-based nonlinear microwave models can also be directly extracted from large-signal measurements for a targeted range of operation. Examples of SOS-MOSFET and GaN models extracted and verified using a few real-time active load pull (RTALP) measurements will be presented. The efficient phase sweeping of the RTALP drastically reduces the number of large-signal measurements needed for the model development and verification while maintaining the same intrinsic voltage coverage as in conventional passive or active load–pull systems. The bias dependence of the charges and device IV characteristics can then be simultaneously extracted from these large-signal RF measurements using artificial neural networks (ANN).
Strategies for Fair, Explainable, and Reliable Machine Learning Using Information Theory
Creators: name: Dutta, Sanghamitra
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Machine learning is entering every aspect of our lives, including high-stakes applications that directly affectpeople’s lives, such as, hiring, education, lending, or healthcare. While these machine learning modelsare undoubtedly great at learning all patterns present in the data, blindly learning all patterns can often have unintended consequences, such as propagating biases with respect to gender, race, etc. These biases can adversely affect people’s lives, and also violate anti-discrimination laws, e.g., Title VII of the US Civil Rights Act. When it comes to resolving legal disputes, or even informing policies and interventions, only identifying bias and disparity in a model’s decision is not always sufficient. We really need to dig deeper and be able to identify/explain the sources of disparity. For example, disparities in hiring that can beexplained by an occupational necessity may be exempt by law, e.g., code-writing skills for hiring a softwareengineer for a safety critical application. However, the disparity arising due to an aptitude test may not be exempt, as in the landmark court case of Griggs v. Duke Power ‘71. This leads us to a question that bridges the fields of fairness, explainability, and law: How can we identify and explain the sources of disparity in machine learning models, e.g., did the disparity arise solely due to the critical occupational necessities? In this dissertation, I propose a systematic measure of “non-exempt disparity,” i.e., the disparity whichcannot be accounted for by the occupational necessities. To arrive at a measure for the non-exempt disparity, I adopt a rigorous axiomatic approach that brings together concepts in information theory, in particular, an emerging body of work called Partial Information Decomposition, with Pearl’s causality. This dissertation also examines an extension of this technique to quantifying contribution of each individualfeature to the observed disparity, a novel form of explainability. Lastly, this dissertation also provides aninformation-theoretic perspective on the fundamental limits of accuracy-fairness tradeoffs.
Loop-Erasure of Plane Brownian Motion
Creators: name: Zhan, Dapeng
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60C

description: We use the coupling technique to prove that there exists a loop-erasure of a plane Brownian motion stopped on exiting a simply connected domain, and the loop-erased curve is the reversal of a radial SLE$_2$ curve.
description: 10 pages
Metaeuchromius Bleszynski 1960
Creators: name: Léger, Théo
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Crambidae
Metaeuchromius

description: Metaeuchromius Błeszyński, 1960
Metaeuchromius Błeszyński, 1960 d: 217.
Type species: Eromene yuennanensis Caradja, 1884
= Pseudeuchromius BłeszyńskiBłeszyński, 1965: 90. Type species: Eromene lata Staudinger, 1870
DIAGNOSIS
A redescription of the genus is provided by Schouten (1997). Forewing ground color white to cream, speckled with brown; antemedian area white to amber yellow, median straight or oblique ochreous band; subterminal line present; termen with characteristic row of terminal dots (W. C. Li et al., 2009; pers.obs.). Several species have abdominal scent organs on male sternite III (Schouten, 1997). Male genitalia with the following characteristics: uncus with pointed tip; gnathos projection usually short, hook-shaped, in some species with small dorsal teeth; valva narrow, with pointed apex, costal process usually developed into a spine, sacculus without process; saccus conspicuously protruding anterad; vesica with or without cornuti (W. C. Li et al., 2009; Schouten, 1997; pers. obs.). Female genitalia with the following characteristics: papillae anales coalesced or free dorsally and ventrally; anterior and posterior apophyses 1-2 X length of tergite VIII; antrum membranous or sclerotized, without projections; ductus bursae of variable length, with or without sclerotization, in some species with pouch-shaped enlargement; corpus bursae globular or pear-shaped, with or without signum (W. C. Li et al., 2009; Schouten, 1997; pers. obs.).
DISTRIBUTION
Known so far from the Palearctic (from Turkey to China), extending its distribution into the Oriental region in India (Metaeuchromius euzonella from Assam, India). Two species are newly described from the Philippines, and one is moved to the genus Metaeuchromius: Metaeuchromius micralis (Hampson, 1919), Metaeuchromius rizali sp. n., and Metaeuchromius makintabus sp. n. Further presumably undescribed species are known from Java.
PHYLOGENETIC RELATIONSHIPS
Phylogenetic placement of Metaeuchromius is currently unclear. This genus was not included in the molecular phylogeny of the Crambinae (Léger et al., 2019). The closed hindwing cell suggests that the genus is not part of the open-cell clade comprising the Argyriini, the Haimbachiini, the Calamotrophini, the Euchromiusini, and the Crambini and is possibly closely related to the genus Miyakea Marumo, 1933 as suggested by Schouten (Landry et al., 2020; Léger et al., 2019; Schouten, 1997).
description: Published as part of Léger, Théo, 2024, Half of the Diversity Undescribed: Integrative Taxonomy Reveals 32 New Species and a High Cryptic Diversity in the Scopariinae and Crambinae of the Philippines (Lepidoptera: Crambidae), pp. 1-93 in Bulletin of the Society of Systematic Biologists 3 (2) on page 69, DOI: 10.18061/bssb.v3i2.9527, http://zenodo.org/record/15116964
Automotive Radar An Overview on State of the Art Technology Slides
Creators: Markus Gardill
Publisher: name: IEEE
Year: 2017

MTT Webinar Slides
Radar systems are a key technology of modern vehicle safety & comfort systems. It will only be the symbiosis of Radar, Lidar and camera-based sensor systems which can enable advanced autonomous driving functions. Several next generation car models could have up to 10 radar sensors per vehicle, allowing a radar-based 360° surround view. Hence the industry demand for high-precision, multi-functional radar systems is higher than ever before, leading to increased research and development activities in the field on functionality and sensor capabilities. Current automotive radar technology is almost exclusively based on the well-known principle of frequency-modulated continuous-wave (FMCW) radar. However, new degrees of freedom have been added to traditional FMCW radar system design in hardware capabilities, simultaneous use of transmit and receive channels with independent modulation features and bandwidths, with advanced signal processing.  This webinar focuses on a review on the fundamentals of FMCW radar and sensors. Insights into the distributed or centralized processing concepts and sensor data fusion are discussed. The presentation dives into the details of currently used fast-chirp FMCW processing. Fundamentals of target range and velocity estimation based on the radar data matrix, the spatial dimension available using modern single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) radar systems is presented Of interest is the topic of angular resolution. Traditional and modern methods for direction of arrival estimation in FMCW radar systems are presented. The presentation will then introduce the great challenge of FMCW radar system interference. While FMCW radar interference is a challenge which can be handled using adaptive signal processing in today’s systems, it will become a severe problem with the increasing number of radar-sensors equipped vehicles in dense traffic situations in the near future, Alternative radar waveforms such as pseudo-random or orthogonal-frequency division multiplexing (OFDM) for automotive radar systems are presented.
Geometry of nilmanifolds with left-invariant complex structure and deformations in the large
Creators: name: Rollenske, Sönke
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32G05 (Primary), 32G08, 17B30, 53C30 (Secondary)

description: The relation between nilmanifolds with left-invariant complex structure and iterated principal holomorphic torus bundles is clarified and we give criteria under which deformations in the large are again of such type. As an application we obtain a fairly complete picture in complex dimension three.
description: 40 pages, revised version of the second part of arXiv:0709.0467v1. To appear in Proc. LMS
Theoretical equations for describing steady state biological rates and their application in analysing physiological differences among animals
Creators: name: Borgmann, Uwe
Publisher: name: University of British Columbia
Year: 2011

description: The rates of complex multi-enzyme systems, which may contain diffusion processes, can be written in a standard polynomial form. Approximation of this formula leads to the derivation of equations which provide a theoretical basis for the use of log-log plots (for rate-size and rate-substrate relationships), and Arrhenius plots (for rate-temperature relationships) in biology. Sharp discontinuities or "breaks" on such plots can be explained by summations of simple functions and the power to which these must be raised prior to summation. It has been found unnecessary to have large enthalpies (or activation energies) to produce sharp breaks on Arrhenius plots of the rates of complicated biological systems.
Mobile Wireless Communication Systems and RF Technologies Slides
Creators: Vijay Nair
Publisher: name: IEEE
Year: 2016

MTT Webinar Slides
Commercial wireless communication systems and technologies have evolved over the years from narrow band analog cellular phone system of the 70s to todays connected devices for highly integrated Internet of Everything (IOE). The primary purpose of the first generation (1G) cell phones was voice communication over the air. The analog 1G system transitioned to digital 2G wireless system to enable data and voice communication. It further expanded to 3G and 4G system as the demand for more data and video streaming increased. Developmental work is now underway to launch 5G system to provide high speed, high bandwidth transmission of data and video. In addition to cellular system evolution, other wireless systems like Wireless LAN, Bluetooth, and ZigBee etc. were also deployed for short range communication.  Cellular systems based on 3G and 4G standards adopted Long Term Evolution (LTE) protocol that employs many frequency bands and varying bandwidths, whereas the wireless LAN type shorter range communication system is governed by IEEE 802.11 standards. Regulatory bodies around the world collaborated in assigning spectrum for wireless transmission. In order to achieve the vision of 5G and IOE, highly efficient wireless system that connects devices to devices are needed.  Many technical challenges and regulatory hurdles have to be resolved to deploy multi band multiprotocol wireless infrastructures and client devices. Heterogeneous systems like these have to tackle radio co-existence and interference mitigation issues. Government regulations of multiple countries have to be understood and coordinated. Since many of communication frequency bands are either adjacent to each other or overlap, quality of transmission can be impaired due to signal interference. Adequate isolation and filtering have to be provided to improve the quality of service.  The physical size and form factors of communication devices have been shrinking continuously. The demand for smaller size devices with more features led to innovations in highly integrated RFICs, power amplifiers, filters, switches, antennas, cameras and display technologies. This talk will highlight the mobile communication vision, multi-protocol wireless system evolution, radio coexistence, and RF device and component technologies.
Application of Fiber Optic Technologies in Wireless Communication Systems Slides
Creators: Dalma Novak
Publisher: name: IEEE
Year: 2016

MTT Webinar Slides
The convergence of optical and wireless networks continues to evolve, ever since the first proposals of extending wireless coverage areas using optical fiber links several decades ago.  Today the use of fiber optic links in wireless networks is becoming ever increasingly pervasive. The realization of integrated optical/wireless networks that can support current and future capacity demands, traffic growth rates, new services, as well as multiple wireless standards is presenting new challenges and opportunities for advanced fiber optic technologies. This webinar presents an overview of optical fiber based solutions for next generation wireless networks. The associated system architectures and signal transport technologies that enable the implementation of integrated optical wireless networks will be discussed. The successful application of fiber optic technologies in next generation wireless systems, such as 5G and 60 GHz networks, will also be reviewed.