cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarkable effect of stacking on the electronic and optical properties of few layer black phosphorus
Creators: name: Cakir, Deniz
name: Sevik, Cem
name: Peeters, Francois M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of the number of stacking layers and the type of stacking on the electronic and optical properties of bilayer and trilayer black phosphorus are investigated by using first principles calcula- tions within the framework of density functional theory. We find that inclusion of many body effects (i.e., electron-electron and electron-hole interactions) modifies strongly both the electronic and opti- cal properties of black phosphorus. While trilayer black phosphorus with a particular stacking type is found to be a metal by using semilocal functionals, it is predicted to have an electronic band gap of 0.82 eV when many-body effects are taken into account within the G0W0 scheme. Though different stacking types result in similar energetics, the size of the band gap and the optical response of bilayer and trilayer phosphorene is very sensitive to the number of layers and the stacking type. Regardless of the number of layers and the type of stacking, bilayer and trilayer black phosphorus are direct band gap semiconductors whose band gaps vary within a range of 0.3 eV. Stacking arrangments different from the ground state structure in both bilayer and trilayer black phosphorus significantly modify valence bands along the zigzag direction and results in larger hole effective masses. The optical gap of bilayer (trilayer) black phosphorus varies by 0.4 (0.6) eV when changing the stacking type. Due to strong interlayer interaction, some stackings obstruct the observation of the optical excitation of bound excitons within the quasi-particle band gap. In other stackings, the binding energy of bound excitons hardly changes with the type of stacking and is found to be 0.44 (0.30) eV for bilayer (trilayer) phosphorous.
A Content Analysis of the Use of Facebook by Academic Libraries
Creators: name: Wang, Lei
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Social media
Academic libraries
Facebook

description: This study focuses on the usage of Facebook as a user service by academic libraries. The purpose of this research is to gain a greater understanding of the use of Facebook among academic libraries. A content analysis was conducted on a sample of 75 Facebook pages managed by academic libraries selected from Association of Research Libraries (ARL)'s 2012 list of the top 100 libraries in the United States. This study examines academic library Facebook pages in order to explore to what extent Facebook pages have been implemented by academic libraries, what type of information are shared on libraries' Facebook pages, and how successful these pages are in reaching out to users. Results of this study provide not only data to illustrate to what extent Facebook has been adopted and how it is being used, but also provide useful implications and suggestions of future use of Facebook pages.
A backstepping-like nonlinear controller design for power systems with SMES
Creators: name: Adirak Kanchanaharuthai
Publisher: name: Rangsit University
Year: 2016
Subjects: backstepping-like control
nonlinear control
nonlinear system
SMES
transient stability

description: Rangsit Journal of Arts and Sciences, 7, 2, 1-10
A study utilizing an online application to improve student reading comprehension of undergraduate students in a Private International University
Creators: name: Bacon, Edward
Publisher: name: Rangsit University
Year: 2016
Subjects: curriculum development
Eddie's Vocab Challenge
flash-based vocabulary-oriented in-class online application
in-class online application
reading comprehension

description: Rangsit Journal of Arts and Sciences, 7, 2, 23-32
Server Placement with Shared Backups for Disaster-Resilient Clouds
Creators: name: Couto, Rodrigo de Souza
name: Secci, Stefano
name: Campista, Miguel Elias Mitre
name: Costa, Luís Henrique Maciel Kosmalski
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A key strategy to build disaster-resilient clouds is to employ backups of virtual machines in a geo-distributed infrastructure. Today, the continuous and acknowledged replication of virtual machines in different servers is a service provided by different hypervisors. This strategy guarantees that the virtual machines will have no loss of disk and memory content if a disaster occurs, at a cost of strict bandwidth and latency requirements. Considering this kind of service, in this work, we propose an optimization problem to place servers in a wide area network. The goal is to guarantee that backup machines do not fail at the same time as their primary counterparts. In addition, by using virtualization, we also aim to reduce the amount of backup servers required. The optimal results, achieved in real topologies, reduce the number of backup servers by at least 40%. Moreover, this work highlights several characteristics of the backup service according to the employed network, such as the fulfillment of latency requirements.
description: Computer Networks 2015
Bosonic symmetry protected topological phases with reflection symmetry
Creators: name: Yoshida, Tsuneya
name: Morimoto, Takahiro
name: Furusaki, Akira
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study two-dimensional bosonic symmetry protected topological (SPT) phases which are protected by reflection symmetry and local symmetry [$Z_N\rtimes R$, $Z_N\times R$, U(1)$\rtimes R$, or U(1)$\times R$], in the search for two-dimensional bosonic analogs of topological crystalline insulators in integer-$S$ spin systems with reflection and spin-rotation symmetries. To classify them, we employ a Chern-Simons approach and examine the stability of edge states against perturbations that preserve the assumed symmetries. We find that SPT phases protected by $Z_N\rtimes R$ symmetry are classified as $\mathbb{Z}_2\times\mathbb{Z}_2$ for even $N$ and 0 (no SPT phase) for odd $N$ while those protected by U(1)$\rtimes R$ symmetry are $\mathbb{Z}_2$. We point out that the two-dimensional Affleck-Kennedy-Lieb-Tasaki state of $S=2$ spins on the square lattice is a $\mathbb{Z}_2$ SPT phase protected by reflection and $π$-rotation symmetries.
description: 11+epsilon pages, 2 figures; v3: typos corrected
Librarians' Attitudes and Perspectives Regarding Graphic Novels
Creators: name: Horner, Emily C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006
Subjects: Comic books, strips, etc.
Public libraries--United States
Graphic novels

description: Historically, graphic novels have held a precarious place in public library collections. In the past, public libraries were envisioned as institutions for education and moral improvement, and library materials were required to prove their quality; arguments have been made against genre fiction, and even against fiction in general. As public libraries have shifted their focus to become more driven by user demand, genre fiction and graphic novels have gained increasing amounts of respect and visibility within library settings. By means of qualitative interviews with local public librarians, this study seeks to examine how librarians view the role of graphic novels in libraries. The interviewed librarians have largely positive views on graphic novels, and believe that they can serve as an important motivator for reluctant readers.
Audio Event-Relational Graph Representation Learning for Acoustic Scene Classification
Creators: name: Hou, Yuanbo
name: Song, Siyang
name: Yu, Chuang
name: Wang, Wenwu
name: Botteldooren, Dick
Publisher: name: arXiv
Year: 2023
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Most deep learning-based acoustic scene classification (ASC) approaches identify scenes based on acoustic features converted from audio clips containing mixed information entangled by polyphonic audio events (AEs). However, these approaches have difficulties in explaining what cues they use to identify scenes. This paper conducts the first study on disclosing the relationship between real-life acoustic scenes and semantic embeddings from the most relevant AEs. Specifically, we propose an event-relational graph representation learning (ERGL) framework for ASC to classify scenes, and simultaneously answer clearly and straightly which cues are used in classifying. In the event-relational graph, embeddings of each event are treated as nodes, while relationship cues derived from each pair of nodes are described by multi-dimensional edge features. Experiments on a real-life ASC dataset show that the proposed ERGL achieves competitive performance on ASC by learning embeddings of only a limited number of AEs. The results show the feasibility of recognizing diverse acoustic scenes based on the audio event-relational graph. Visualizations of graph representations learned by ERGL are available here (https://github.com/Yuanbo2020/ERGL).
description: IEEE Signal Processing Letters, doi: 10.1109/LSP.2023.3319233
Effect of nonsymmorphic space group on correlation functions in iron-based superconductors
Creators: name: Nourafkan, R.
name: Tremblay, A. -M. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The orbital basis is natural when one needs to calculate the effect of local interactions or to unravel the role of orbital physics in the response to external probes. In systems with nonsymmorphic point groups, such as the iron-based superconductors, we show that symmetries that emerge in observable response functions at certain wave vectors are absent from generalized susceptibilities calculated with tight-binding Hamiltonians in the orbital basis. Such symmetries are recovered only when the generalized susceptibilities are embeded back to the continuum using appropriate matrix elements between basis states. This is illustrated with the case of LiFeAs and is further clarified using a minimal tight-binding Hamiltonian with non-symmorphic space group.
Effects of ethanol concentration, extraction time and ultrasound-assisted extraction on the recovery of curcuminoid from turmeric (Curcuma longa L.) rhizome
Creators: name: Huttaya Chahom
Publisher: name: Rangsit University
Year: 2016
Subjects: curcuminoids
curcumin
ethanol extraction
HPLC
turmeric powder
ultrasound-assisted extract

description: Rangsit Journal of Arts and Sciences, 7, 2, 41-48
Information needs of refugees from Burma living in Orange County, North Carolina, and how public libraries may address these information needs
Creators: name: Twork, Monica L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Public libraries--Services to minorities--Adults
Public libraries--North Carolina
Public libraries--Services to foreign population
Information needs

description: This research shed an exploratory light on the information needs, informationseeking  behavior, and public library awareness of refugees from Burma currently residing  in the Orange County, North Carolina, area. A paper questionnaire addressing these  issues was administered to 20 adult members of this group, identified through a contact at  the United States Committee for Refugees and Immigrants (USCRI) in Raleigh.  Employment, health, and education information were three of the most sought-after  topics of information within the community. The majority (75%) of all respondents  relied on community service organizations for employment-related information. For  information on transportation, the majority (70%) of respondents relied on friends and  family. When it came to public library resources, DVDs and ESL-related materials were  found to be the most requested forms of resources. If ESL and computer/internet courses  were offered by the public library, 55% of all respondents wrote that they would attend  these courses.
A Server-Side User Study of UNC-Chapel Hill's 19th-Century American Sheet Music Collection Database
Creators: name: Hoskins, Hansi L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Music--Databases
Use studies
Online searching--Evaluation
Information retrieval

description: Hansi Hoskins. A Server-Side User Study of UNC-Chapel Hill's 19th-Century American Sheet Music Collection Database. A Master's paper for the M.S. in L.S. degree. April, 2010. 32 pages. Advisor: Diane Kelly  This study describes a server-side user study of UNC-Chapel Hill's 19th-Century American Sheet Music Collection Database. The study was based on the transaction logs of the database and was conducted to learn about the search pathways, and habits of the users of the database.   The information collected from the transaction logs included IP addresses, time-stamps, URLs, and referrers. This data provided information about the amount of time users spend actively searching the database, the how users are querying the database, the results they are receiving from their query, and the  documents they chose from the results page.  Headings:  Music Information Retrieval    Sheet Music Databases  Server-Side User Study  Sheet Music Database  19th-Century American Sheet Music.
Probing Atomic Higgs-like Forces at the Precision Frontier
Creators: name: Delaunay, Cédric
name: Ozeri, Roee
name: Perez, Gilad
name: Soreq, Yotam
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a novel approach to probe new fundamental interactions using isotope shift spectroscopy in atomic clock transitions. As concrete toy example we focus on the Higgs boson couplings to the building blocks of matter: the electron and the up and down quarks. We show that the attractive Higgs force between nuclei and their bound electrons, that is poorly constrained, might induce effects that are larger than the current experimental sensitivities. More generically, we discuss how new interactions between the electron and the neutrons, mediated via light new degrees of freedom, may lead to measurable non-linearities in a King plot comparison between isotope shifts of two different transitions. Given state-of-the-art accuracy in frequency comparison, isotope shifts have the potential of being measured with sub-Hz accuracy, thus potentially enabling the improvement of current limits on new fundamental interactions. Candidate atomic system for this measurement require two different clock transitions and four zero nuclear spin isotopes. We identify several systems that satisfy this requirement and also briefly discuss existing measurements. We consider the size of the effect related to the Higgs force and the requirements for it to produce an observable signal.
description: 7 pages, added focus on light higgs-like mediators, electron density at the nucleus improved with effective quantum number, version accepted for publication in PRD
Amtliche Mitteilungen der Technischen Universität Dortmund 20/2018
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2018
Subjects: subject: 080

description: Ordnung über die Einstellung des Diplomstudienganges Statistik der Fakultät Statistik an der Technischen Universität Dortmund vom 30. August 2018
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2018;20
GroundLink: A Dataset Unifying Human Body Movement and Ground Reaction Dynamics
Creators: name: Han, Xingjian
name: Senderling, Benjamin
name: To, Stanley
name: Kumar, Deepak
name: Whiting, Emily
name: Saito, Jun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: The physical plausibility of human motions is vital to various applications in fields including but not limited to graphics, animation, robotics, vision, biomechanics, and sports science. While fully simulating human motions with physics is an extreme challenge, we hypothesize that we can treat this complexity as a black box in a data-driven manner if we focus on the ground contact, and have sufficient observations of physics and human activities in the real world. To prove our hypothesis, we present GroundLink, a unified dataset comprised of captured ground reaction force (GRF) and center of pressure (CoP) synchronized to standard kinematic motion captures. GRF and CoP of GroundLink are not simulated but captured at high temporal resolution using force platforms embedded in the ground for uncompromising measurement accuracy. This dataset contains 368 processed motion trials (~1.59M recorded frames) with 19 different movements including locomotion and weight-shifting actions such as tennis swings to signify the importance of capturing physics paired with kinematics. GroundLinkNet, our benchmark neural network model trained with GroundLink, supports our hypothesis by predicting GRFs and CoPs accurately and plausibly on unseen motions from various sources. The dataset, code, and benchmark models are made public for further research on various downstream tasks leveraging the rich physics information at https://csr.bu.edu/groundlink/.
Putting Web Server Log Files to Work in Special Collections
Creators: name: Craft, Anna R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: Library use studies
Libraries--Special collections--Electronic information resources
Web usage analysis
Libraries--Special collections
Library statistics
Web servers--Log file analysis

description: The study focuses on electronic use data from the website of the Special Collections Research Center (SCRC) of the North Carolina State University Libraries, and examines tabulations of this data in order to learn about website use patterns and trends. The purpose of the study is to explore the usefulness of web server log files in tracing use trends and in its application to decision-making about collections and services. The results identify some patterns and trends in the data, but present more questions than answers. More study is needed in this area; and non-electronic data measures, such as patron feedback and in-person collection use, are needed to potentially help explain this data and put it to use in Special Collections.
Hedin equations in resonant micro-cavities
Creators: name: Trevisanutto, P. E.
name: Milletarì, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: With the improvement of the experimental techniques, many new phenomena where the photon degrees of freedom are involved have been discovered. Typical examples are the exciton-polariton quasi-particles, excitons strongly coupled to photons. A correct description of these systems requires a full account of the photon's dynamics, including the vector gauge degrees of freedom. In order to include this contribution in \emph{ab initio} many-body perturbation theories, here we present a generalization of the Hedin equations, originally derived for a many electron system with Coulomb interaction. These equations are now derived in order to take into account the strong coupling physics of the electrons and the \textit{transverse} photon's degrees of freedom.
Excluded homeomorphism types for dual complexes of surfaces
Creators: name: Cartwright, Dustin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D06, 14T05

description: We study an obstruction to prescribing the dual complex of a strict semistable degeneration of an algebraic surface. In particular, we show that if $Δ$ is a complex homeomorphic to a 2-dimensional manifold with negative Euler characteristic, then $Δ$ is not the dual complex of any semistable degeneration. In fact, our theorem is somewhat more general and applies to some complexes homotopy equivalent to such a manifold. Our obstruction is provided by the theory of tropical complexes.
description: 12 pages
ISLAMIC THEOLOGICAL STUDIES AS A CHANCE FOR DIALOGUE AND MUTUAL UNDERSTANDING: A MULTI-DIMENSIONAL APPROACH OF A COMPLEX PHENOMENON
Creators: name: Radhouani, Khaled
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Dialog , Islam
subject: 200
subject: Dialogue
subject: Islamische Theologie
subject: Islamic Thology

description: Die "Islamische Theologie", die vor wenigen Jahren auch im deutschsprachigen Raum auf universitärer Ebene einen bedeutenden Wert bekommt, kann durchaus als Brücke zum fruchtbaren inter-religiösen und interkulturellen betrachtet werden. Eine tiefe Untersuchung der beiden großen Quellen des Islams, nämlich des Korans und der Tradition des Propheten Muḥammad, bildet eine Säule dieser Theorie. Die vorliegende Arbeit versucht, den Wert des Dialogs im Islam unter die Lupe zu nehmen und die Islamische Theologie in Deutschland als Beispiel für einen fruchtbaren und möglichst vorurteilslosen Austausch zwischen den Religionen zu präsentieren.
Developing a Visualization Tool for Archived Social Science Research Data
Creators: name: Leaf, Brian D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Librarians
Archivists
Graphical user interfaces--Evaluation
Electronic data archives

description: When researchers access electronically-archived datasets, is the information readily comprehensible? For survey research, this is often not the case. When online surveys use skip patterns, the path respondents take through the survey will vary depending on how each question is answered. Such skip logic programming is not always obvious when looking at the linear version of the survey instrument. Using the Workforce Issues in Library and Information Science (WILIS) surveys as test cases, a schema was designed to visualize the flow and logic of complex surveys. Wireframes were created to illustrate the schema's potential use as an analysis tool within the open-source Dataverse Network maintained by the Odum Institute for Research in Social Science. Focus groups were used to explore responses to the survey visualization tool by researchers.
Defining the Role of the Public Library: A Qualitative Analysis of Mission Statements
Creators: name: Nowicki de Guerra, Regina
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: Public libraries--Aims and objectives
Mission statements
Public libraries--North Carolina

description: This study uses a qualitative analysis of library mission statements and additional role-related documents to determine what a sample of large public library systems in North Carolina are declaring to be their roles today. These declared roles are also compared to the roles and service responses described in Public Library Association planning manuals. The naming, placement, and length of all online public library mission statements in North Carolina are also discussed.    It is found that public libraries see themselves as fulfilling many roles, some continuing their traditional tasks, some responding to the new Information Economy, and some reflecting intangible values. The planning manuals are seen to neglect many of these roles, with the exception of the latest version. Libraries are encouraged to better utilize mission statements in order to communicate these many roles and so demonstrate their continuing relevance in the new information context.
Melanoleuca dirensis F. Nawaz, S. Jabeen & A. N. Khalid 2017, sp. nov.
Creators: name: Nawaz, Farzana
name: Jabeen, Sana
name: Khalid, Abdul Nasir
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Tricholomataceae
Melanoleuca
Melanoleuca dirensis

description: Melanoleuca dirensis F. Nawaz, S. Jabeen & A.N. Khalid sp. nov.
Figure 2: A–D; Figure 3: A–E; Figure 5: A
MycoBank no.:—MB 820543
Etymology:—the specific epithet refers to the type locality, Dir Upper district.
 Diagnosis:—differing from Melanoleuca cinereifolia (Bon) Bon in having white lamellae, small ellipsoid basidiospores, similar cheilocystidia and pleurocystidia without crystals, and a cutis type pileipellis.
 Holotype:— PAKISTAN. Khyber Pakhtunkhwa province: Dir Upper district, Kumrat Valley, 2401 m asl, growing on rich loamy soil near Panjkora river, 2 September 2015, Abdul Nasir Khalid and Farzana Nawaz FS 107 (LAH35159!; GenBank KU575243).
 Description:—Basidiomata tricholomatoid, medium. Pileus 42–57 mm diam., convex, obtusely umbonate, margin straight, smooth, glabrous, dry; occasionally cracked, light pink (5P9/4) to yellowish (5Y8/4) becoming grey (7.5Y6/2) to greenish (7.5Y6/4) or dark grey (7.5Y3/2). Lamellae free, crowded, toothed, yellowish (7.5Y9/2) to greenish grey (10Y6/2), with lamellulae of 3 lengths. Stipe 45–67 × 10 mm, eccentric, subequal, subbulbous, surface dry, pruinose, yellowish brown (2.5Y6/4) fibrillose context, becoming white towards base, hollow. Basal mycelium white (7.5Y9/2), abundant.
 Basidiospores [40/2/1], (5.4‒) 6‒9.4 (‒10.8) × (3.6‒) 4‒6.8 (‒7.8) μm, [avl × avw = 7.9 × 6 µm, Q = 1.31], ellipsoid, warty, thin-walled, hyaline in 5% KOH, amyloid warts, apiculus present. Basidia 12.7‒32.3 × 6.1‒11.4 μm, [avl × avw = 24.55 × 8.87 μm], clavate, 2‒4 spored, thin-walled, hyaline; sterigmata up to 5.7 μm long. Cheilocystidia 42.9–84 × 8.9–19.7 μm, [avl × avw = 65 × 13.4 µm], fusoid-ventricose, leptocystidia. Pleurocystidia similar to cheilocystidia. Pileipellis a cutis of cylindrical hyphae 6.8–16.8 μm in diameter (av= 11 µm), thin-walled, septate, branched, hyaline. Stipitipellis composed of cylindrical hyphae 4.7–17.2 μm in diam. (av = 11.2 µm), hyaline, septate, branched. Clamp connections absent.
Habitat:—Moist temperate coniferous forests.
 Additional specimens examined: PAKISTAN. Khyber Pakhtunkhwa province: Dir Upper district, Kumrat Valley, 2401 m asl, growing on rich loamy soil near Panjkora River, 2 September 2015, Abdul Nasir Khalid and Farzana Nawaz FS 24 (LAH35160!; GenBank KU556797).
description: Published as part of Nawaz, Farzana, Jabeen, Sana & Khalid, Abdul Nasir, 2017, New and noteworthy Melanoleuca (Pluteaceae) from Pakistan, pp. 175-184 in Phytotaxa 311 (2) on pages 177-180, DOI: 10.11646/phytotaxa.311.2.5, http://zenodo.org/record/13700515
Perturbativity in the seesaw mechanism
Creators: name: Asaka, Takehiko
name: Tsuyuki, Takanao
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider the Standard Model extended by right-handed neutrinos to explain massive neutrinos through the seesaw mechanism. The new fermion can be observed when it has a sufficiently small mass and large mixings to left-handed neutrinos. If such a particle is the lightest right-handed neutrino, its contribution to the mass matrix of active neutrinos needs to be canceled by that of a heavier one. Yukawa couplings of the heavier one are then larger than those of the lightest one. We show that the perturbativity condition gives a severe upper bound on the mixing of the lightest right-handed neutrino, depending on the masses of heavier ones. Models of high energy phenomena, such as leptogenesis, can be constrained by low energy experiments.
description: v3: 7 pages, published version, v2: 6 pages, references added, v1: 5 pages, 3 figures
title: Intracranial Hydatid Cyst: MRI and MR Spectroscopy imaging features
Creators: name: Kankara, Shreyas
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Neuroradiology
subject: CNS
subject: Neuroradiology brain
subject: MR
subject: MR-Spectroscopy
subject: Clinical Cases

description: Clinical History: A 16-year-old female presented with two months history of progressive headache and difficulty in speaking, to the current state of inability to speak. There was no other significant neurological history. Physical examination revealed Broca’s aphasia with normal motor, sensory, cranial nerve, and cerebellar functions. Contrast-enhanced MRI was subsequently performed.

description: 16 years, female
Adult Learners, Emotions, and Digital Literacy
Creators: name: Grant, Sheryl L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Information and library science education
Library user education
Digital divide
Public libraries
Information literacy
Service learning

description: This exploratory research addresses the role of motivation in Internet adoption and use among beginning computer users, and considers the perceptions, expectations and affective states of adult learners in a free, collaborative, volunteer-based public library computer-skills program. Focus groups and interviews were used to examine positive and negative affective characteristics among adult learners and instructors who had participated in a collaborative, volunteer-based, public library basic computer skills program, and narrative data was analyzed for themes and patterns. Two main themes were found: First, beginning computer users sought learning experiences that minimized negative affective characteristics; and second, supportive learning programs increased confidence and independent learning. Patrons encouraged libraries to: (1) offer classes in a convenient, safe, trusted, familiar location; (2) provide a group setting with other beginners; (3) provide multiple instructors and floaters.
Building Farmer Leaders, Capacity to Develop Sufficiency Economy-based Organic Farming Systems in Ban Nai Rai, La-un District, Ranong Province
Creators: name: Pariwat Changkid, Thayarat Thongtab
Publisher: name: Upper northern research administration network
Year: 2018
Subjects: Strengthening farmers' potential,development of organic farming systems based on sufficiency economy, Bang NaiRaiCommunity

description: Journal of Community Development and Life Quality, 6, 3, 579-604
Surface waves in granular phononic crystals
Creators: name: Pichard, Helene
name: Duclos, Aroune
name: Groby, Jean-Philippe
name: Tournat, Vincent
name: Zheng, Li-Yang
name: Gusev, Vitali
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The existence of surface elastic waves at a mechanically free surface of granular phononic crystals is studied. The granular phononic crystals are made of spherical particles distributed periodically on a simple cubic lattice. It is assumed that the particles are interacting by means of normal, shear and bending contact rigidities. First, Rayleigh-type surface acoustic waves, where the displacement of the particles takes place in the sagittal plane while the particles possess one rotational and two translational degrees of freedom, are analyzed. Second, shear-horizontal-type waves, where the displacement of the particles is normal to the sagittal plane while the particles possess one translational and two rotational degrees of freedom are studied. The existence of zero-group velocity surface acoustic waves of Rayleigh-type is theoretically predicted and interpreted. A comparison with surface waves predicted by the Cosserat theory is performed, and its limitations are established.
LP-based Tractable Subcones of the Semidefinite Plus Nonnegative Cone
Creators: name: Tanaka, Akihiro
name: Yoshise, Akiko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The authors in a previous paper devised certain subcones of the semidefinite plus nonnegative cone and showed that satisfaction of the requirements for membership of those subcones can be detected by solving linear optimization problems (LPs) with $O(n)$ variables and $O(n^2)$ constraints. They also devised LP-based algorithms for testing copositivity using the subcones. In this paper, they investigate the properties of the subcones in more detail and explore larger subcones of the positive semidefinite plus nonnegative cone whose satisfaction of the requirements for membership can be detected by solving LPs. They introduce a {\em semidefinite basis (SD basis)} that is a basis of the space of $n \times n$ symmetric matrices consisting of $n(n+1)/2$ symmetric semidefinite matrices. Using the SD basis, they devise two new subcones for which detection can be done by solving LPs with $O(n^2)$ variables and $O(n^2)$ constraints. The new subcones are larger than the ones in the previous paper and inherit their nice properties. The authors also examine the efficiency of those subcones in numerical experiments. The results show that the subcones are promising for testing copositivity as a useful application.
description: 26 pages, 5 figures
Efficiency-Increasing Water Resources Management for Sustainable Development with Participation of Ban Kaeng Community in Nakae District, Nakhon Phanom Province
Creators: name: Adchara Pilert And Wuttisuk Thanunrum
Publisher: name: Upper northern research administration network
Year: 2018
Subjects: Water resources, ground water,consumption water

description: Journal of Community Development and Life Quality, 6, 3, 453-474
Blind Stereoscopy of the Coronal Magnetic Field
Creators: name: Aschwanden, Markus J.
name: Schrijver, Carolus J.
name: Malanushenko, Anna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We test the feasibility of 3D coronal-loop tracing in stereoscopic EUV image pairs, with the ultimate goal of enabling efficient 3D reconstruction of the coronal magnetic field that drives flares and coronal mass ejections (CMEs). We developed an automated code designed to perform triangulation of coronal loops in pairs (or triplets) of EUV images recorded from different perspectives. The automated (or blind) stereoscopy code includes three major tasks: (i) automated pattern recognition of coronal loops in EUV images, (ii) automated pairing of corresponding loop patterns from two different aspect angles, and (iii) stereoscopic triangulation of 3D loop coordinates. We perform tests with simulated stereoscopic EUV images and quantify the accuracy of all three procedures. In addition we test the performance of the blind stereoscopy code as a function of the spacecraft-separation angle and as a function of the spatial resolution. We also test the sensitivity to magnetic non-potentiality. The automated code developed here can be used for analysis of existing {\sl Solar TErrestrial RElationship Observatory (STEREO)} data, but primarily serves for a design study of a future mission with dedicated diagnostics of non-potential magnetic fields. For a pixel size of 0.6\arcsec (corresponding to the {\sl Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly (AIA)} spatial resolution of 1.4\arcsec), we find an optimum spacecraft-separation angle of $α_s \approx 5^\circ$.
description: Solar Physics (accepted 2015 June 15), in press
Assessment and Application of Wavelet-based Optical Flow Velocimetry (wOFV) to Wall-Bounded Turbulent Flows
Creators: name: Nicolas, Alexander
name: Zentgraf, Florian
name: Linne, Mark
name: Dreizler, Andreas
name: Peterson, Brian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The performance of a wavelet-based optical flow velocimetry (wOFV) algorithm to extract high accuracy and high resolution velocity fields from particle images in wall-bounded turbulent flows is assessed. wOFV is first evaluated using synthetic particle images generated from a channel flow DNS of a turbulent boundary layer. The sensitivity of wOFV to the regularization parameter (lambda) is quantified and results are compared to PIV. Results on synthetic particle images indicated different sensitivity to under-regularization or over-regularization depending on which region of the boundary layer is analyzed. Synthetic data revealed that wOFV can modestly outperform PIV in vector accuracy across a broad lambda range. wOFV showed clear advantages over PIV in resolving the viscous sublayer and obtaining highly accurate estimates of the wall shear stress. wOFV was also applied to experimental data of a developing turbulent boundary layer. Overall, wOFV revealed good agreement with both PIV and PIV + PTV. However, wOFV was able to successfully resolve the wall shear stress and correctly normalize the boundary layer streamwise velocity to wall units where PIV and PIV + PTV showed larger deviations. Analysis of the turbulent velocity fluctuations revealed spurious results for PIV in close proximity to the wall, leading to significantly exaggerated and non-physical turbulence intensity. PIV + PTV showed a minor improvement in this aspect. wOFV did not exhibit this same effect, revealing that it is more accurate in capturing small-scale turbulent motion in the vicinity of boundaries. The enhanced vector resolution of wOFV enabled improved estimation of instantaneous derivative quantities and intricate flow structure both closer to the wall. These aspects show that, within a reasonable lambda range, wOFV can improve resolving the turbulent motion occurring in the vicinity of physical boundaries.
Violence and Children's Preferences in Fairy Tale Story Endings
Creators: name: Dunlap, Jacqueline M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Children's literature--History and criticism
Content analysis--Children's literature
Fairy tales

description: Violence in children's stories is an important debate in the field of children's literature. Within that controversy, there is another, perhaps even bigger issue: that of justice. Specifically in fairy tales, violence serves the purpose of bringing about justice. Many claim that the lack of justice is more problematic for children than the presence of violence. This study seeks to approach this issue from children's perspectives. This interview-based content analysis study of fourteen kindergarten students in the southeastern United States brings children's voices to the general conversation about violence and justice. The children heard two fairy tale stories, each with two alternate endings characterized by punishment or leniency. The children chose which ending they preferred and then explained their selections in individual interviews. The results show that these children do prefer justice and fairness but that they also consider violence and the extremity of punishments in their evaluation of appropriateness.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 26/2022
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2022
Subjects: subject: 080

description: Gleichstellungskonzept (2022 bis 2026) des Centrums für Entrepreneurship & Transfer
description: Gleichstellungskonzept (2022 bis 2026) des IT & Medien Centrums
description: Gleichstellungskonzept (2022 bis 2026) der Universitätsbibliothek
description: Gleichstellungskonzept (2022 bis 2026) der Mechanischen Werkstatt
description: Gleichstellungskonzept (2022 bis 2026) des Zentrums für HochschulBildung
description: Gleichstellungskonzept (2022 bis 2026) der Zentralverwaltung
description: Gleichstellungskonzept der Technischen Universität Dortmund
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2022; 26
Evaluation of Village Fund Management Process:A Case Study Village Fund in Muang Si KhaiSubdictrict, Warin Chamrap District, Ubon Ratchathani Province
Creators: name: Pattrajirt Sangsawang Supachai Pahumuntoand Chawapot Suppasarn
Publisher: name: Upper northern research administration network
Year: 2018
Subjects: Evaluation process, village fund, management proces

description: Journal of Community Development and Life Quality, 6, 3, 551-562
Journal Access for Underserved Areas (JAFUA): Designing a Database for Underserved Countries for the Widernet Project
Creators: name: Ashcraft, Laura
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015
Subjects: Acquisition of electronic journals--Electronic journals
Developing countries--International cooperation
Database design--Database development

description: The main job of a reference librarian is to know where to go for information resources needed by their clients and many of these resources are housed in databases. Fortunately there are programs offering developing countries free or reduced cost access to their journals and books. However librarians in developing countries struggle with finding these organizations. The overarching problem is that they have to deal with a huge or total lack of Internet connection, and this is one of the biggest enablers to the digital divide that is currently and rapidly growing between first and developing countries. This project aims to connect journal providers who provide their content at free or reduced cost to underserved countries to librarians in these countries by means of a hybrid database called Journal Access for Underserved Areas JAFUA.
Asymptotic distribution of degree--based topological indices
Creators: name: Yuan, Mingao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Topological indices play a significant role in mathematical chemistry. Given a graph $\mathcal{G}$ with vertex set $\mathcal{V}=\{1,2,\dots,n\}$ and edge set $\mathcal{E}$, let $d_i$ be the degree of node $i$. The degree-based topological index is defined as $\mathcal{I}_n=$ $\sum_{\{i,j\}\in \mathcal{E}}f(d_i,d_j)$, where $f(x,y)$ is a symmetric function. In this paper, we investigate the asymptotic distribution of the degree-based topological indices of a heterogeneous Erdős-Rényi random graph. We show that after suitably centered and scaled, the topological indices converges in distribution to the standard normal distribution. Interestingly, we find that the general Randić index with $f(x,y)=(xy)^τ$ for a constant $τ$ exhibits a phase change at $τ=-\frac{1}{2}$.
Finding Quality Reviews for Young Adult Books
Creators: name: Bates, Jennifer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: Young adults' literature--Evaluation
Book reviews and reviewing--Evaluation
Young adults' literature--Selection
School libraries--Collection development

description: The following study sought to determine which journals provide the best reviews of young adult books by investigating the research question "Of the journals librarians most commonly consult for young adult book reviews, which utilize the criteria that experts consider essential in a quality book review?" The research sample included fiction titles from YALSA's (Young Adult Library Services Association) Best Books for Young Adults 2007 that had reviews in four specific journals, Booklist, Kliatt, School Library Journal, and Voice of Youth Advocates. Content analysis was used to code 140 reviews using a set of criteria developed by Margo Wilson and Kay Bishop in 1999. The results show that all of the journals addressed most of the criteria in their reviews, but each journal had strengths and weaknesses. This information potentially will help young adult librarians in both school and public libraries decide which review sources to consult when making collection development decisions.
Critical quasiparticles in single-impurity and lattice Kondo models
Creators: name: Vojta, Matthias
name: Bulla, Ralf
name: Wölfle, Peter
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Quantum criticality in systems of local moments interacting with itinerant electrons has become an important and diverse field of research. Here we review recent results which concern (a) quantum phase transitions in single-impurity Kondo and Anderson models and (b) quantum phase transitions in heavy-fermion lattice models which involve critical quasiparticles. For (a) the focus will be on impurity models with a pseudogapped host density of states and their applications, e.g., in graphene and other Dirac materials, while (b) is devoted to strong-coupling behavior near antiferromagnetic quantum phase transitions, with potential applications in a variety of heavy-fermion metals.
description: 18 pages, 4 figs, mini-review. arXiv admin note: text overlap with arXiv:1208.3113
Library design issues in the writings of architects and librarians
Creators: name: Erickson, Susan Joy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000
Subjects: Architecture and building--Programming and planning
Architecture and building--College and university libraries
Architect and librarian
Architecture and building--Public libraries

description: This study enumerates the major design concerns of both librarians and architects in the library building process. A latent content analysis of thirty-seven articles from architectural and library journals was performed to determine the most prevalent issues in each of these professional fields. It was determined that five overarching themes are discussed in the literature.  These are: philosophy of design; the design process; special functional elements; interior design; and occupancy of the building.  Major issues under these thematic headings are: vision of the library; allusions in the design; library as gathering place; site context; the library as a gathering place; phases of the design process; flexibility in design; historic preservation; adaptive reuse; climate control and preservation of collections; information technology; lighting, color and furnishings.  Articles are cited as examples to illustrate these issues.  The author offers "lessons for librarians," summarizing the main issues that librarians need to consider as they begin the design process.
New Phases and Dissociation-Recombination of Hydrogen Deuteride to 3.4 Megabar
Creators: name: Dias, Ranga P.
name: Noked, Ori
name: Silvera, Isaac F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present infrared absorption studies of solid hydrogen deuteride to pressures as high as 3.4 megabar in a diamond anvil cell and temperatures in the range 5 to 295 K. Above 198 GPa the sample transforms to a mixture of HD ,H2 and D2, interpreted as a process of dissociation and recombination. Three new phases-lines are observed, two of which differ remarkably from those of the high-pressure homonuclear species, but none are metallic. The time-dependent spectral changes are analyzed to determine the molecular concentrations as a function of time; the nucleon exchange achieves steady state concentrations in ~20 hours at ~200 GPa.
description: 11 pages, 4 figures, submitted