cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multi-year search for a diffuse flux of muon neutrinos with AMANDA-II
Creators: name: IceCube Collaboration
name: Achterberg, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A search for TeV - PeV muon neutrinos from unresolved sources was performed on AMANDA-II data collected between 2000 and 2003 with an equivalent livetime of 807 days. This diffuse analysis sought to find an extraterrestrial neutrino flux from sources with non-thermal components. The signal is expected to have a harder spectrum than the atmospheric muon and neutrino backgrounds. Since no excess of events was seen in the data over the expected background, an upper limit of E^{2}Φ_{90% C.L.} < 7.4 x 10^{-8} GeV cm^{-2} s^{-1} sr^{-1} is placed on the diffuse flux of muon neutrinos with a Φ\propto E^{-2} spectrum in the energy range 16 TeV to 2.5 PeV. This is currently the most sensitive Φ\propto E^{-2} diffuse astrophysical neutrino limit. We also set upper limits for astrophysical and prompt neutrino models, all of which have spectra different than Φ\propto E^{-2}.
description: 47 pages, 13 figures. This includes the original document and an erratum for the effective area tables
D2.1 The COLLABS Level-3 Security Package for Secure Digital Supply Networks: MVP
Creators: name: Miloš Radovanović
name: Nataša Vujnović Sedlar
name: Srđan Škrbić
Publisher: name: Zenodo
Year: 2020
Subjects: collabs
Secure data sharing
anomaly detection
statistical analytics
IIoT
digital supply chain

description: This deliverable is the first output of Work Package 2
 tasks T2.1 (Tools and methods for secure data
 sharing), T2.2 (Trustworthiness of data flows), T2.3
 (Machine learning-based cognitive security
 framework), T2.4 (Statistical Analytics and Machine- /
 Deep-Learning on shared data), T2.5 (Distributed
 anomaly detection for Industrial IoT) and T2.6
 (Workflow-driven security for supply chain and
 compliance in manufacturing) related to the minimum
 viable product of the project. It describes and
 demonstrates the various technologies that form the
 COLLABS Level-3 security package for secure digital
 supply networks.
Antisymmetric-Tensor and Electromagnetic effects in an alpha'-non-perturbative Four-Dimensional String Cosmology
Creators: name: Alexandre, Jean
name: Mavromatos, Nick E.
name: Tanner, Dylan
Publisher: name: arXiv
Year: 2007
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: Starting from an exact (in the Regge slope alpha') functional method for a bosonic stringy sigma-model, we investigate four-dimensional cosmological string solutions in graviton, dilaton and antisymmetric tensor backgrounds, compatible with world-sheet conformal invariance, and valid beyond perturbative expansions in powers of alpha'. The antisymmetric tensor field, playing the role of an axion in the four-dimensional target space time, leads to spatial anisotropies of the emergent Robertson-Walker expanding Universe, and, upon coupling the system to the electromagnetic field, it results in non-trivial optical activity. Some estimates of the corresponding effects are made and their relevance to current cosmology is briefly discussed.
Small-scale Magnetic Flux Ropes with Field-aligned Flows via the PSP In-situ Observations
Creators: name: Chen, Yu
name: Hu, Qiang
name: Zhao, Lingling
name: Kasper, Justin C.
name: Huang, Jia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Magnetic flux rope, formed by the helical magnetic field lines, can sometimes remain its shape while carrying significant plasma flow that is aligned with the local magnetic field. We report the existence of such structures and static flux ropes by applying the Grad-Shafranov-based algorithm to the Parker Solar Probe (PSP) in-situ measurements in the first five encounters. These structures are detected at heliocentric distances, ranging from 0.13 to 0.66 au, in a total of 4-month time period. We find that flux ropes with field-aligned flows, although occur more frequently, have certain properties similar to those of static flux ropes, such as the decaying relations of the magnetic fields within structures with respect to heliocentric distances. Moreover, these events are more likely with magnetic pressure dominating over the thermal pressure. About one-third of events are detected in the relatively fast-speed solar wind. Taking into account the high Alfvenicity, we also compare with switchback spikes identified during three encounters and interpret their inter-relations. We find that some switchbacks can be detected when the spacecraft traverses flux rope-like structures. The cross-section maps for selected events are presented via the new Grad-Shafranov type reconstruction. Finally, the possible evolution of the magnetic flux rope structures in the inner heliosphere is discussed.
description: Accepted by ApJ on 2021 April 28
ЎЗБЕКИСТОННИНГ ЖАНУБИЙ МИНТАҚАСИ ТУПРОҚ-ИҚЛИМИ ШАРОИТИДА ГИЛОС НАВ ВА ПАЙВАНДТАГЛАРИНИНГ ИССИҚЛИККА ЧИДАМЛИЛИГИ
Creators: name: Туракулов, Умид
Publisher: name: Zenodo
Year: 2023

description: Ўзбекистоннинг жанубий ҳудудлари, хусусан Сурхондарё вилояти мевали ўсимликлардан энг эрта ҳосил олиш учун катта имкониятларга эга ҳисобланади. Бироқ, ушбу ҳудуднинг ёзги жазирама иссиқлари кўпгина мевали ўсимликларни етиштириш меваққақиятига бирмунча тўсқинлик қилади. Шундай мевалардан бири бу гилос ўсимлиги бўлиб, у республиканинг ҳар қандай вилоятига нисбатан энг эрта ҳосил олиш имконини беради. Бироқ унинг кўпгина нав-пайвандтаг комбинациялари ҳудуднинг ёзги жазирама иссиқлари таъсирида кучли таъсирланади. Шу боис вилоят боғдорчилигида гилоснинг улуши у қадар катта эмас. Бунинг боиси, фикримизча Сурхондарё вилояти тупроқ-иқлимига мос гилос навлари ва пайвандтагларини танлаш борасида амалга оширилган илмий ишларнинг салоҳиятининг ниҳоятда камлигидадир.
Mapping Domain Wall Topology in the Magnetic Weyl Semimetal CeAlSi
Creators: name: Sun, Yue
name: Lee, Changmin
name: Yang, Hung-Yu
name: Torchinsky, Darius H.
name: Tafti, Fazel
name: Orenstein, Joseph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report full vector mapping of local magnetization in CeAlSi, a Weyl semimetal in which both inversion and time-reversal symmetries are broken. The vector maps reveal unanticipated features both within domains and at their boundaries. Boundaries between domains form two kinds of walls with distinct topology and therefore different interactions with Weyl fermions. Domain walls aligned along the tetragonal axes, e.g. (100), exhibit emergent chirality forbidden by the bulk space group, while diagonal walls are non-chiral. Within the domains, we observe that the previously reported set of four easy axes aligned along the in-plane diagonals of the tetragonal structure actually split to form an octet with decreasing temperature below the magnetic transition. All the above phenomena are ultimately traced to the noncollinear magnetic structure of CeAlSi.
description: 5+8 pages, 4+3 figures
title: Mapping Irish Women’s Football
Creators: name: Byrne, Helena
name: Gibbs, Stuart
Publisher: name: British Library
Year: 2021

description: The Mapping Irish Football project is calling on the crowd to share any newspaper references they may have come across of women and any code of football prior to and including 1973.

It is hoped that this project will start a conversation amongst researchers interested in Irish sports to do more to document the history and development of women’s football. Women’s football of any code only started to become popular in Ireland from the mid 1960’s onwards, but very little is known of what went before. By collaborating through this public form, we can start to piece together the knowledge that exists within the research community and identify where the gaps in our knowledge lie.

After the online nomination form closes the data will be cleaned up and deposited with News collections at the British Library. The data will be published as an open source data set that can be accessed by anyone interested in women’s football history. This presentation will give an overview of how this project came about, a summary of the data collected so far and how you can participate in the project.
I. Szelim (1512–1520) perzsa dívánjának új kritikai kiadása elé: tudománytörténeti áttekintés és a Díván kézirathagyománya
Creators: name: Péri, Benedek
Publisher: name: Kőrösi Csoma Társaság
Year: 2020

description: Keletkutatás, 2020. tavasz ISSN 0133-4778
Pair Production Beyond the Schwinger Formula in Time-Dependent Electric Fields
Creators: name: Hebenstreit, Florian
name: Alkofer, Reinhard
name: Gies, Holger
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate electron-positron pair production in pulse-shaped electric background fields using a non-Markovian quantum kinetic equation. We identify a pulse-length range for subcritical fields still in the nonperturbative regime where the number of produced pairs significantly exceeds that of a naive expectation based on the Schwinger formula. From a conceptual viewpoint, we find a remarkable quantitative agreement between the (real-time) quantum kinetic approach and the (imaginary-time) effective action approach.
description: 5 pages, 3 figures. Typos corrected and references added, PRD Version
DESVENDANDO A MENTE - UMA JORNADA MULTIDISCIPLINAR NA EXPLORAÇÃO DOS MECANISMOS DA LEITURA DE MENTES
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: Leitura de Mentes
Telepatia
Empatia
Estados Alterados de Consciência
Meditação
Dinâmica Energética
Variação Individual
Tecnologia e Mente
Cosmoética
Paranômenos
Mind Reading
Telepathy
Empathy
Altered States of Consciousness
Meditation
Energy Dynamics
Individual Variation
Technology and Mind
Cosmoethics
Paranomen

description: Este artigo, intitulado 'Desvendando a Mente: Uma Jornada Multidisciplinar na Exploração dos Mecanismos da Leitura de Mentes', mergulha nas complexidades da leitura de mentes, unindo abordagens parapsicológicas, neurocognitivas, e éticas. Iniciando com métodos específicos, como a telepatia, exploramos a interseção entre empatia e práticas meditativas, destacando a influência de estados alterados de consciência. Analisamos a dinâmica energética, diferenças individuais na susceptibilidade à telepatia, e a interação entre tecnologia e mente. A revisão abrange ainda o papel histórico da alquimia e magia, os paranômenos, e a importância da cosmoética. Ao conectar empatia, sincronia cognitiva, autodisciplina e autodomínio, o artigo propõe direcionamentos para pesquisas futuras, buscando uma compreensão mais profunda dos mecanismos subjacentes a essa fascinante capacidade.

 

This article, titled 'Uncovering the Mind: A Multidisciplinary Journey in Exploring the Mechanisms of Mind Reading', delves into the complexities of mind reading, uniting parapsychological, neurocognitive, and ethical approaches. Starting with specific methods, such as telepathy, we explore the intersection between empathy and meditative practices, highlighting the influence of altered states of consciousness. We analyze energetic dynamics, individual differences in susceptibility to telepathy, and the interaction between technology and the mind. The review also covers the historical role of alchemy and magic, the paranomena, and the importance of cosmoethics. By connecting empathy, cognitive synchrony, self-discipline and self-mastery, the article proposes directions for future research, seeking a deeper understanding of the mechanisms underlying this fascinating capacity.
D9.4 MES-CoBraD - Online Materials
Creators: name: Stravodimos, George
Publisher: name: Zenodo
Year: 2021
Subjects: CoBraD
Online Materials
Dissemination
Communication

description: This report, the Online Material, mainly outlines the ways that the MES-CoBraD can share the scope and results with the appropriate audiences. More specifically, all the ways that the project is visually available are outlined in this report. First of all, the website and the social media of the project are presented, because these means are the most important to the dissemination and communication strategy of the project as well as all the other materials and tools such as blogs, events, newsletters, infographics and videos. Last but not least, the promotional means to be used are outlined. These include but are not limited to the MES-CoBraD logo and other standard dissemination means, such as those described in the visual identity of the project - D9.3 “Promotional and Informational material”; while more specialised means, including flyer, poster, leaflet and articles will be a core aspect of the project’s online material.
EXAMINING USER SATISFACTION AND ADOPTION IN SMART BANKING APPLICATIONS : A FOCUS ON BENEFITS
Creators: name: Thahir, SLM
name: Mausudeen, GS Lani
Publisher: name: Zenodo
Year: 2023

description: In recent years, the financial markets have seen substantial changes due to the widespread use of technology and the rising acceptance of digital solutions. Smart banking applications (SBAs) are at the forefront of this revolution and offer a wide range of capabilities that set them apart from traditional banking services. The objective of this study is to examine the level of satisfaction and utilisation of a smart banking application in relation to the advantages experienced by users. Data for this specific study was meticulously gathered through a comprehensive questionnaire that was specifically customised for individuals who frequently utilise smart banking services. A total of 150 replies were collected and carefully analysed to draw meaningful conclusions from the study's findings. Based on the findings, benefits have a favourable impact on satisfaction. There was a substantial relationship between satisfaction and both usage and intention to use.
การศึกษาปัจจัยที่เกี่ยวกับการบาดเจ็บจากอุบัติเหตุจราจรในเขตเทศบาลเมืองท่าโขลง จังหวัดปทุมธานี กรณีการเปรียบเทียบสถานการณ์ในช่วงก่อนและช่วงการแพร่ระบาด COVID-19
Creators: name: สุธัญญา วังคีรี
Publisher: name: สถาบันป้องกันควบคุมโรคเขตเมือง
Year: 2023
Subjects: การบาดเจ็บจากอุบัติเหตุจราจร
หน่วยปฏิบัติการแพทย์ฉุกเฉินเบื้องต้น
การแพร่ระบาด COVID-19

description: วารสารสถาบันป้องกันควบคุมโรคเขตเมือง, 8, 2, 21-37
"Boundary blowup" type sub-solutions to semilinear elliptic equations with Hardy potential
Creators: name: Bandle, Catherine
name: Moroz, Vitaly
name: Reichel, Wolfgang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J60, 35J70, 31B25

description: Semilinear elliptic equations which give rise to solutions blowing up at the boundary are perturbed by a Hardy potential. The size of this potential effects the existence of a certain type of solutions (large solutions): if the potential is too small, then no large solution exists. The presence of the Hardy potential requires a new definition of large solutions, following the pattern of the associated linear problem. Nonexistence and existence results for different types of solutions will be given. Our considerations are based on a Phragmen-Lindelof type theorem which enables us to classify the solutions and sub-solutions according to their behavior near the boundary. Nonexistence follows from this principle together with the Keller-Osserman upper bound. The existence proofs rely on sub- and super-solution techniques and on estimates for the Hardy constant derived in Marcus, Mizel and Pinchover.
description: 23 pages, 3 figures
Radiometric correction of satellite imagery for topographic and atmospheric effects
Creators: name: Gray, Malcolm Haig
Publisher: name: University of British Columbia
Year: 2010

description: The radiometry of satellite imagery is influenced by ground cover, local topography, and atmosphere. In order to increase the accuracy of ground cover identification from satellite imagery, effects due to topography and atmosphere must be removed. These effects can be estimated by modeling the image-formation process. For this thesis an image-formation model is developed and tested on Landsat MSS data over a mountainous region. Solar illumination angle, atmosphere depth, and sky illumination are calculated with the help of a digital elevation model. A digital forest cover map is used to select a target forest type for which model parameters are estimated using regression analysis. Results of this analysis indicate that solar illumination angle has the largest effect on target pixel irradiance followed by atmosphere depth. Sky illumination as calculated, was significantly correlated with target pixel irradiance but in a negative sense. This correlation suggests that inter reflection (also called mutual illumination) from adjacent terrain may be a small but significant source of illumination. The estimated model parameters are used to correct the imagery for topographic and atmospheric effects. Visual assessment of the corrected imagery indicates that many but not all of the topographic effects have been reduced. Comparisons between computer classified imagery and the forest cover map show an improvement in correctly classified pixels from 54% for the original image to 72% for the corrected image.
Exploring higher order images with Fe K_α-lines from relativistic disks: black hole spin determination and bias
Creators: name: Falanga, M.
name: Bakala, P.
name: La Placa, R.
name: De Falco, V.
name: De Rosa, A.
name: Stella, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the contributions to the relativistic Fe $K_α$ line profile from higher order images (HOIs) produced by strongly deflected rays from the disk which cross the plunging region, located between the innermost stable circular orbit (ISCO) radius and the event horizon of a Kerr black hole. We investigate the characteristics features imprinted by the HOIs in the line profile for different black hole spins, disk emissivity laws and inclinations. We find that they extend from the red wing of the profile up to energies slightly lower than those of the blue peak, adding $\sim 0.4 - 1.3$\% to the total line flux. The contribution to the specific flux is often in the $\sim 1$\% to 7\% range, with the highest values attained for low and negative spin ($a\lesssim 0.3$) black holes surrounded by intermediate inclination angle ($i\sim40^{\circ}$) disks. We simulate future observations of a black hole X-ray binary system with the Large Area Detector of the planned X-ray astronomy \emph{enhanced X-ray Timing and Polarimetry Mission} (eXTP) and find that the \fekal\ of systems accreting at $\lesssim 1 $\% the Eddington rate are affected by the HOI features for a range of parameters. This would provide evidence of the extreme gravitational lensing of HOI rays. Our simulations show also that not accounting for HOI contributions to the Fe $K_α$ line profile may systematically bias measurements of the black hole spin parameter towards values higher by up to $\sim 0.3$ than the inputted ones.
description: accepted for publication in MNRAS, 11 pages, 7 figures, 2 tables
On Lipschitz compactifications of trees
Creators: name: Kloeckner, Benoit
Publisher: name: arXiv
Year: 2008
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 57S99, 51F99

description: We study the Lipschitz structures on the geodesic compactification of a regular tree, that are preserved by the automorphism group. They are shown to be similar to the compactifications introduced by William Floyd, and a complete description is given.
description: 6 pages
Spiral Disk Opacity from Occulting Galaxy Pairs in the Sloan Digital Sky Survey
Creators: name: Holwerda, B. W.
name: Keel, W. C.
name: Bolton, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A spiral galaxy partially ovelapping a more distant elliptical offers an unique opportunity to measure the dust extinction in the foreground spiral. From the Sloan Digital Sky Survey DR4 spectroscopic sample, we selected 83 occulting galaxy pairs and measured disk opacity over the redshift range z = 0.0-0.2 with the goal to determine the recent evolution of disk dust opacity. The enrichment of the ISM changes over the lifetime of a disk and it is reasonable to expect the dust extinction properties of spiral disks as a whole to change over their lifetime. When they do, the change will affect our measurements of galaxies over the observable universe. From the SDSS pairs we conclude that spiral disks show evidence of extinction to ~2 effective radii. However, no evidence for recent evolution of disk opacity is evident, due to the limited redshift range and our inability to distinguish other factors on disk opacity such as the presence of spiral arms and Hubble type. Such effects also mask any relation between surface brightness and optical depth that has been found in nearby galaxies. Hence, we conclude that the SDSS spectral catalog is an excellent way to find occulting pairs and construct a uniform local sample. However, higher resolution than the SDSS images is needed to disentangle the effects of spiral arms and Hubble type from evolution since z = 0.2.
description: 34 pages, 11 figures, 6 tables
2-Primary Anick Fibrations
Creators: name: Theriault, Stephen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P35; 55Q40

description: Cohen conjectured that for r>=2 there is a space T^2n+1(2^r) and a homotopy fibration sequence Loop^2 S^2n+1 --> S^2n-1 --> T^2n+1(2^r) --> Loop S^2n+1 with the property that the left map composed with the double suspension, Loop^2 S^2n+1 --> S^2n-1 --> Loop^2 S^2n+1, is homotopic to the 2^r-power map. We positively resolve this conjecture when r>=3. Several preliminary results are also proved which are of interest in their own right.
description: 27 pages
Ab initio study of element segregation and oxygen adsorption on PtPd and CoCr binary alloy surfaces
Creators: name: Dianat, Arezoo
name: Zimmermann, Janina
name: Seriani, Nicola
name: Bobeth, Manfred
name: Pompe, Wolfgang
name: Ciacchi, Lucio Colombi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The segregation behavior of the bimetallic alloys PtPd and CoCr in the case of bare surfaces and in the presence of an oxygen ad-layer has been studied by means of first-principles modeling based on density-functional theory (DFT). For both systems, change of the d-band filling due to charge transfer between the alloy components, resulting in a shift of the d-band center of surface atoms compared to the pure components, drives the surface segregation and governs the chemical reactivity of the bimetals. In contrast to previous findings but consistent with analogous PtNi alloy systems, enrichment of Pt atoms in the surface layer and of Pd atoms in the first subsurface layer has been found in Pt-rich PtPd alloy, despite the lower surface energy of pure Pd compared to pure Pt. Similarly, Co surface and Cr subsurface segregation occurs in Co-rich CoCr alloys. However, in the presence of adsorbed oxygen, Pd and Cr occupy preferentially surface sites due to their lower electronegativity and thus stronger oxygen affinity compared to Pt and Co, respectively. In either cases, the calculated oxygen adsorption energies on the alloy surfaces are larger than on the pure components when the more noble components are present in the subsurface layers.
title: Kirchliche Coworking-Spaces als Orte modernen Arbeitens und Glaubens.
title: Eine Studie zu den 20 "FriedO"-Dorfkirchen.
titleType: Subtitle
Creators: name: Ide, Janine
name: Maloku, Kaltrina
Publisher: name: Hornemann Institut
Year: 2021
Subjects: Cultural assets

description: In Zeiten gesellschaftlicher und kirchlicher Umbrüche setzt die Arbeitsgemeinschaft evangelischer Kirchen in der Region Friedland-Obernjesa (FriedO), gelegen im Dreiländereck von Niedersachsen, Thüringen und Hessen, mit ihrem freiwilligen Zusammenschluss ein starkes Zeichen: 20 Dörfer und Kirchen werden gemeinsam in den Fokus genommen. Inzwischen können die zugehörigen 15 verantwortlichen Kirchenvorstände auf zehn Jahre Verantwortung und Erfahrung für regionales Denken und Teilen zurückblicken. Das in dieser Zeit gemeinsam entwickelte und gestärkte Vertrauen bildet im Jetzt und Hier das Fundament für die angeratenen Überlegungen, die Gotteshäuser zukunftsfähig aufzustellen, indem man sie für neue Nutzungen öffnet. Dabei gilt es, notwendige monetäre Zwänge mit den Chancen mutiger kirchen- und dorfgemeindlicher Entwicklungen zu verknüpfen. Die hier vorgelegte Studie stellt im Prozess einen Teilaspekt dar, der die Möglichkeiten der Implementierung von Coworking-Spaces in Dorfkirchen visioniert. Coworking statt Homeoffice, gemeint ist das verschränkte analoge und digitale Arbeiten mehrerer Personen in einem Raum oder einer Raumgruppe in angenehmer Atmosphäre und mit definierter Technik- und IT-Dienstleistung, ist kein Hype, sondern gelebte Arbeitswelt. Diese sogenannten Dritten Orte erfahren seit Jahren eine immer stärkere Nachfrage und ergänzen die bekannten klassischen Arbeitswelten der letzten Jahrzehnte. Sie stehen für die Kultur des Miteinanders. Bekannt für ihre aktive Sozialraumgestaltung gelten sie als Motor für gesteigerte Kreativität und Wirkkraft. Herausgegeben von Birgit Franz, Georg Maybaum und Sonja Tinney
Supersymmetry and Nuclear Pairing
Creators: name: Balantekin, A. B.
name: Pehlivan, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that nuclear pairing Hamiltonian exhibits supersymmetry in the strong-coupling limit. The underlying supersymmetric quantum mechanical structure explains the degeneracies between the energies of the N and Nmax-N+1 pair eigenstates. The supersymmetry transformations connecting these states are given.
description: 4 pages of REVTEX, one figure
TORCH INFEKTSIYASINING  HOMILADOR AYOL VA EMBRIONGA TA'SIRI
Creators: name: Yodgorova, Nodira
name: Payg'amova, Farangiz
name: Keldiyorova, Durdona
Publisher: name: Zenodo
Year: 2023

description: TORCH bu – homila uchun juda xavfli bo’lgan , eng keng tarqalgan infektsiyalarning birinchi harflaridan tuzilgan qisqartma atama hisoblanadi. TORCH infeksiyasi — har qanday yosh va jinsdagi odamlarga ta’sir qilishi mumkin bo’lgan, ammo faqat homiladorlik uchun tayyorgarlik ko’rayotgan va homilador ayollarga, homila va yangi tug’ilgan chaqaloqlarda uchraydigan infektsiyalar jamlanmasi. U asosan, homiladorlikda uchrab yangi tug'ilgan chaqaloqlarga ta'sir qiluvchi yuqumli kasallikdir. Erkak va ayollarda bir xil patologik alomatlarni yuzaga chiqaradi. Ushbu infektsiyani jinsiy yo‘l orqali, havo tomchi yo‘li orqali, ona suti orqali bolaga, tug‘ilish yo‘llaridagi infektsiya orqali hamda mushuklarning yungi va najasi orqali yuqtirib olishi mumkin.Infektsiya homilaga yo'ldosh orqali yuqib, embrion organlarining to‘g‘ri rivojlanishiga ta'sir ko'rsatadi. Infektsiya bilan og'rigan odam yo‘talganida yoki aksirganida tupruk va shilimshiq orqali  boshqa odamlarga yuqtirishi mumkin. TORCH guruhiga kiritilgan barcha kasalliklarni erta aniqlash, davolash va profilaktika o’tkazish xastalikning oldini olishda samarali tadbir hisoblanadi.
Structural properties of charged compact stars with color-flavour-locked quarks matter
Creators: name: Jasim, M. K.
name: Pradhan, Anirudh
name: Banerjee, Ayan
name: Tangphati, Takol
name: Panotopoulos, Grigoris
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The observations of pulsars with masses close to 2$M_{\odot}$ have put strong constraints on the equation of state (EoS) of neutron-rich matter at supranuclear densities. Moreover, the exact internal composition of those objects is largely unknown to us. Aiming to reach the 2$M_{\odot}$ limit, here we investigate the impact of electric charge on properties of compact stars assuming that the charge distribution is proportional to the mass density. The study is carried out by solving the Tolman-Oppenheimer-Volkoff (TOV) equation for a well-motivated exotic quark matter in the color-flavor-locked (CFL) phase of color superconductivity. The existence of the CFL phase may be the true ground state of hadronic matter with the possibility of the existence of a pure stable quark star (QS). Concerning the equation-of-state, we obtain structural properties of quark stars and compute the mass, the radius as well as the total electric charge of the star. We analyze the dependence of the physical properties of these QSs depending on the free parameters with special attention on mass-radius relation. We also briefly discuss the mass vs central mass density $(M-ε_c)$ relation for stability, the effect of electric charge and compactness. Finally, our results are compared with the recent observations data on mass-radius relationship.
description: 12 pages, 8 figures, references added, to appear in Mod. Phys. Lett. A
Almost homogeneous manifolds with boundary
Creators: name: Kloeckner, Benoit
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57S20, 53C35

description: Let $ρ_0$ be an action of a Lie group on a manifold with boundary that is transitive on the interior. We study the set of actions that are topologically conjugate to $ρ_0$, up to smooth or analytic change of coordinates. We show that in many cases, including the compactifications of negatively curved symmetric spaces, this set is infinite.
description: 12 pages; v2: the hypothesis that the action is transitive on the boundary is dropped, hence the change of title
Providing a hybrid cryptography algorithm for lightweight authentication protocol in RFID with urban traffic usage case
Creators: name: Chegeni, V.
name: javadi, H. Haj Seyyed
name: Goudarzi, M. R Moazami
name: Rezakhani, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Today, the Internet of Things (IoT) is one of the emerging technologies that enable the connection and transfer of information through communication networks. The main idea of the IoT is the widespread presence of objects such as mobile devices, sensors, and RFID. With the increase in traffic volume in urban areas, the existing intelligent urban traffic management system based on IoT can be vital. Therefore, this paper focused on security in urban traffic based on using RFID. In our scheme, RFID tags chose as the purpose of this article. We, in this paper, present a mutual authentication protocol that leads to privacy based on hybrid cryptography. Also, an authentication process with RFID tags is proposed that can be read at high speed. The protocol has attempted to reduce the complexity of computing. At the same time, the proposed method can withstand attacks such as spoofing of tag and reader, tag tracking, and replay attack.
description: 10 pages,2 figures
Mapping intermolecular interactions and active site conformations: from human MMP-1 crystal structure to molecular dynamics free energy calculations
Creators: name: Nash, Anthony
name: Birch, Helen
name: Leeuw, Nora De
Publisher: name: figshare
Year: 2021
Subjects: subject: Structural Biology
subject: Computational Biology
subject: Biophysics
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: The zinc-dependent Matrix Metalloproteinases (MMPs) found within the extracellular matrix (ECM) of vertebrates are linked to pathological processes such as arthritis, skin ulceration and cancer. Although a general backbone proteolytic mechanism is understood, crystallographic data continue to suggest an active site that is too narrow to encompass the respective substrate. We present a fully parameterised Molecular Dynamics (MD) study of the structural properties of an MMP-1-collagen crystallographic structure (Protein Data Bank – 4AUO), followed by an exploration of the free energy surface of a collagen polypeptide chain entering the active site, using a combined meta-dynamics and umbrella sampling (MDUS) approach. We conclude that the interactions between MMP-1 and the collagen substrate are in good agreement with a number of experimental studies. As such, our unrestrained MD simulations and our MDUS results, which indicate an energetic barrier for a local uncoiling and insertion event, can inform future investigations of the collagen-peptide non-bonded association steps with the active site prior to proteolytic mechanisms. The elucidation of such free energy barriers provides a better understanding of the role of the enzyme in the ECM and is important in the design of future MMP inhibitors.
Low-lying magnetic loops in the solar internetwork
Creators: name: Gonzalez, M. J. Martinez
name: Collados, M.
name: Cobo, B. Ruiz
name: Solanki, S. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The aim of this work is to study the structure of the magnetic field vector in the internetwork and search for the presence of small-scale loops. We invert 1.56 micron spectropolarimetric observations of internetwork regions at disc centre by applying the SIR code. This allows us to recover the atmospheric parameters that play a role in the formation of these spectral lines. We are mainly interested in the structure of the magnetic field vector. We find that many opposite polarity elements of the internetwork are connected by short (2-6''), low-lying (photospheric) loops. These loops connect at least the 10-20 % of the internetwork flux visible in our data. Also we have some evidence that points towards a dynamic scenario which can be produced by the emergence of internetwork magnetic flux.
description: Accepted for publication in A&A letters
Convective carbon dioxide dissolution in a closed porous medium at high-pressure real-gas conditions
Creators: name: Wen, Baole
name: Shi, Zhuofan
name: Jessen, Kristian
name: Hesse, Marc A.
name: Tsotsis, Theodore T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We combine modeling and measurements to investigate the dynamics of convective carbon dioxide (CO$_2$) dissolution in a pressure-volume-temperature cell, extending a recent study by Wen et al. (J. Fluid Mech., vol. 854, 2018, pp. 56--87) at low-pressure under ideal-gas conditions to high-pressure and real-gas conditions. Pressure-dependent compressibility and solubility are included to model the evolution of CO$_2$ concentration in the gas phase and at the interface, respectively. Simple ordinary-differential-equation models are developed to capture the mean behavior of the convecting system at large Rayleigh number and are then verified by using both numerical simulations and laboratory experiments. The prefactor for the linear scaling of convective CO$_2$ dissolution is evaluated -- for the first time -- by using pressure-decay experiments in bead packs at reservoir conditions. The results show that our models could quantitatively predict the process of the convective CO$_2$ dissolution in pressure-decay experiments. Moreover, the results also reveal that for increasing gas pressure in closed systems, the negative feedback of the pressure drop -- resulting from the dissolution of CO$_2$ in the liquid -- is weakened due to the decrease of the solubility constant at real-gas conditions. Our analysis provides a new direction for determination and validation of the convective dissolution flux of CO$_2$ in porous media systems.
description: in press in Adv. Water Resour
Logarithmic divergent specific heat from high-temperature series expansions: application to the two-dimensional XXZ Heisenberg model
Creators: name: Gonzalez, M. G.
name: Bernu, B.
name: Pierre, L.
name: Messio, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an interpolation method for the specific heat $c_v(T)$, when there is a phase transition with a logarithmic singularity in $c_v$ at a critical temperature $T=T_c$. The method uses the fact that $c_v$ is constrained both by its high temperature series expansion, and just above $T_c$ by the type of singularity. We test our method on the ferro and antiferromagnetic Ising model on the two-dimensional square, triangular, honeycomb, and kagome lattices, where we find an excellent agreement with the exact solutions. We then explore the XXZ Heisenberg model, for which no exact results are available.
Fast flavor instabilities and the search for neutrino angular crossings
Creators: name: Johns, Lucas
name: Nagakura, Hiroki
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: With the recognition that fast flavor instabilities likely affect supernova and neutron-star-merger neutrinos, using simulation data to pin down when and where the instabilities occur has become a high priority. The effort faces an interesting problem. Fast instabilities are related to neutrino angular crossings, but simulations often employ moment methods, sacrificing momentum-space angular resolution in order to allocate resources elsewhere. How can limited angular information be used most productively? The main aims here are to sharpen this question and examine some of the available answers. A recently proposed method of searching for angular crossings is scrutinized, the limitations of moment closures are highlighted, and two ways of reconstructing angular distributions solely from the flux factors (based respectively on maximum-entropy and sharp-decoupling assumptions) are compared. In (semi)transparent regions, the standard closure prescriptions likely miss some crossings that should be there and introduce others that should not.
description: 9 pages, 5 figures. reference added
Calculations of the Exciton Coupling Elements Between the DNA Bases Using the Transition Density Cube Method
Creators: name: Czader, Arkadiusz
name: Bittner, Eric R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Excited states of the of the double-stranded DNA model (A)$_{12}\cdot$(T)_{12} were calculated in the framework of the exciton theory. The off-diagonal elements of the exciton matrix were calculated using the transition densities and ideal dipole approximation associated with the lowest energy $ππ^{*}$ excitations of the individual nucleobases obtained from TDDFT calculations. The values of the coupling calculated with the transition density cubes (TDC) and ideal-dipole approximation (IDA) methods were found significantly different for the small inter-chromophore distances. It was shown that the IDA overestimates the coupling significantly. The effects of the structural fluctuations were incorporated by averaging the properties of the excited states over a large number of conformations obtained from the MD simulations.
Noise-Assisted Discord-Like Correlations in Light-Harvesting Photosynthetic Complexes
Creators: name: Reséndiz-Vázquez, Pablo
name: Román-Ancheyta, Ricardo
name: León-Montiel, Roberto de J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transport phenomena in photosynthetic systems have attracted a great deal of attention due to their potential role in devising novel photovoltaic materials. In particular, energy transport in light-harvesting complexes is considered quite efficient due to the balance between coherent quantum evolution and decoherence, a phenomenon coined Environment-Assisted Quantum Transport (ENAQT). Although this effect has been extensively studied, its behavior is typically described in terms of the decoherence's strength, namely weak, moderate or strong. Here, we study the ENAQT in terms of quantum correlations that go beyond entanglement. Using a subsystem of the Fenna-Matthews-Olson complex, we find that discord-like correlations maximize when the subsystem's transport efficiency increases, while the entanglement between sites vanishes. Our results suggest that quantum discord is a manifestation of the ENAQT and highlight the importance of beyond-entanglement correlations in photosynthetic energy transport processes.
Radio constraints on dark matter annihilation in the galactic halo and its substructures
Creators: name: Borriello, Enrico
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: Annihilation of Dark Matter usually produces together with gamma rays comparable amounts of electrons and positrons. The e+e-; gyrating in the galactic magnetic field then produce secondary synchrotron radiation which thus provides an indirect mean to constrain the DM signal itself. To this purpose, we calculate the radio emission from the galactic halo as well as from its expected substructures and we then compare it with the measured diffuse radio background. We employ a multi-frequency approach using data in the relevant frequency range 100 MHz-100 GHz, as well as the WMAP haze at 23 GHz. The derived constraints are of the order  = 10^{-24} cm^3s^{-1} for a DM mass m = 100 GeV sensibly depending however on the astrophysical uncertainties, in particular on the assumption on the galactic magnetic field model. The signal from single bright clumps is instead largely attenuated by diffusion effects and offers only poor prospects of detection.
Implication of Pulsar Timing Array Experiments on Cosmological Gravitational Wave Detection
Creators: name: Yokoyama, Jun'ichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gravitational waves provide a new probe of the Universe which can reveal a number of cosmological and astrophysical phenomena that cannot be observed by electromagnetic waves. Different frequencies of gravitational waves are detected by different means. Among them, precision measurements of pulsar timing provides a natural detector for gravitational waves with light-year scale wavelengths. In this review, first a basic framework to detect a stochastic gravitational wave background using pulsar timing array is introduced, and then possible interpretations of the latest observational result of 12.5 year NANOGrav data are described.
description: Introductory review article for AAPPS Bulletin
Ultrastructure of aplanospore production and germination and the role of calcium in germination of aplanospores of Vaucheria longicaulis variety macounii Blum (Chrysophyta, Tribophyceae)
Creators: name: Fitch, Robert Scott
Publisher: name: University of British Columbia
Year: 2010

description: Vaucheria longicaulis var. macounii (Blum) is the most common of the four brackish water species of Vaucher ia known to occur in British Columbia and northern Washington. This variety is easy to maintain in culture with minimum nutritional requirements. It survives culture conditions for extended periods of time (up to 2 years or more) without losing its reproductive capabilities. Aplanosporogenesis is easily induced by transferring plants to fresh medium with almost every vegetative filament producing one apical aplanosporangium containing a single aplanospore. Aplanosporogenesis has been examined in sections prepared for light and electron microscopies. As the vegetative filament tip expands, signalling the beginning of aplanosporogenesis, the large central vacuole is displaced from the tip. An inner wall is secreted within the existing cell wall via exocytosis of numerous fibrillar-containing vesicles. Septation of the aplanosporangium from the vegetative filament is accomplished by the centripetal infurrowing of this newly secreted inner wall at the base of the enlarged filament tip. Each aplanosporangium produces a single, multinucleated walled aplanospore, with unique organelle morphologies and associations. The importance of these organelles in the mechanism of aplanospore release and germination are discussed. Germination of aplanospores is initiated at sites characterized by low optical density and leads to the formation of filaments. The most prominent ultrastructural features characterizing germination are the rapid expansion of the central vacuole, the accumulation of dictyosome-derived vesicles at the tip of the germinating filament in association with cell wall expansion, and the increase in the number and redistribution of microtubules. The possible function of unique organelle associations, such as those occurring among the mitochondria-endoplasmic reticulum-dictyosome association, are discussed as well. In addition, quantitative changes in the volume density of some subcellular compartments and organelles are evaluated using morphometric analysis. Using the fluorescent probe chlorotetracycline as an indicator of intracellular Ca²⁺, the role(s) of calcium on aplanospore germination and filament growth are studied. These studies are supplemented with the use of drugs to disrupt the availability and distribution of extra- and intracellular Ca²⁺. The results are then analyzed in terms of the complexities of the mechanisms involved in the germination and growth of Vaucheria aplanospores.
A Comparative Study of Atmospheric Chemistry with VULCAN
Creators: name: Tsai, Shang-Min
name: Malik, Matej
name: Kitzmann, Daniel
name: Lyons, James R.
name: Fateev, Alexander
name: Lee, Elspeth
name: Heng, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an update of the open-source photochemical kinetics code VULCAN (Tsai et al. 2017; https://github.com/exoclime/VULCAN) to include C-H-N-O-S networks and photochemistry. Additional new features are advection transport, condensation, various boundary conditions, and temperature-dependent UV cross-sections. First, we validate our photochemical model for hot Jupiter atmospheres by performing an intercomparison of HD 189733b models between Moses et al. (2011), Venot et al. (2012), and VULCAN, to diagnose possible sources of discrepancy. Second, we set up a model of Jupiter extending from the deep troposphere to upper stratosphere to verify the kinetics for low temperature. Our model reproduces hydrocarbons consistent with observations, and the condensation scheme successfully predicts the locations of water and ammonia ice clouds. We show that vertical advection can regulate the local ammonia distribution in the deep atmosphere. Third, we validate the model for oxidizing atmospheres by simulating Earth and find agreement with observations. Last, VULCAN is applied to four representative cases of extrasolar giant planets: WASP-33b, HD 189733b, GJ 436b, and 51 Eridani b. We look into the effects of the C/O ratio and chemistry of titanium/vanadium species for WASP-33b; we revisit HD 189733b for the effects of sulfur and carbon condensation; the effects of internal heating and vertical mixing ($K_{\textrm{zz}}$) are explored for GJ 436b; we test updated planetary properties for 51 Eridani b with S$_8$ condensates. We find sulfur can couple to carbon or nitrogen and impact other species such as hydrogen, methane, and ammonia. The observable features of the synthetic spectra and trends in the photochemical haze precursors are discussed for each case.
description: 50 pages, 41 figures, accepted for publication in ApJ