cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ÐÐ½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð²ÑÐ²Ð¾Ð´ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ° Ñ ÐºÑÑÐ³Ð¾Ð²ÑÐ¼ Ð¾ÑÐ²ÐµÑÑÑÐ¸ÐµÐ¼
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Analytical derivation of the stresses of a cylinder with a circular hole
Creators: name: ÐÐ¼Ð¸ÑÑÐ¸ÐµÐ², ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¾Ð±Ð¾Ð»Ð¾ÑÐºÐ¸ Ñ Ð¾ÑÐ²ÐµÑÑÑÐ¸ÑÐ¼Ð¸
ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾Ð±Ð¾Ð»Ð¾ÑÐºÐ¸
Ð¿Ð¾Ð»Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
shells with holes
cylindrical shells
field of stresses

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½ Ð½Ð¾Ð²ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¿Ð¾Ð´ÑÐ¾Ð´ Ðº Ð²ÑÐ²Ð¾Ð´Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ð¹ ÑÐ½ÑÑÑ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐµÐ½Ð¸Ñ Ð½Ð° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑ Î², Ð·Ð°Ð²Ð¸ÑÑÑÐ¸Ð¹ Ð¾Ñ ÑÐ°Ð´Ð¸ÑÑÐ° Ð¾ÑÐ²ÐµÑÑÑÐ¸Ñ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ°, ÑÐ°Ð´Ð¸ÑÑÐ° ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ°, ÑÐ¾Ð»ÑÐ¸Ð½Ñ ÑÑÐµÐ½ÐºÐ¸ Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° ÐÑÐ°ÑÑÐ¾Ð½Ð°. Ð¢Ð°ÐºÐ¶Ðµ Ð·Ð°Ð´Ð°ÑÐ° ÑÐµÑÐµÐ½Ð° Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð² Ð¿Ð°ÐºÐµÑÐµ ANSYS Workbench. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½Ñ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÐºÐ¸ Ð¸ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð².
description: In this work, a new analytical approach to stress derivation is used, which makes it possible to remove mathematical restrictions on the parameter Î², which depends on the radius of the cylinder hole, the radius of the cylinder, wall thickness and Poisson's ratio. Also, the problem was solved using the finite element method in the ANSYS Workbench package. A comparative analysis of the results of analytics and the finite element method is carried out.
title: Effective Use of Interactive Learning Modules in Classroom Study in Computer Science
Creators: name: Jamwal, Goldee
Publisher: name: Utah State University
Year: 2012

description: The National Science Foundation (NSF) is spending substantial resources to improve science, technology, engineering, and mathematics (STEM) education in the United States. The ultimate goal of these programs is to produce students with a better knowledge of math and science and who are more likely to pursue careers in STEM fields. Interactive learning modules can be used in the classroom environment for effective learning.
This study examines the learning preferences of Logan High School (located in Logan, Utah) students and evaluates the impacts of using interactive learning modules with classroom lectures compared to other traditional methods of teaching.
Sviluppo e realizzazione di uno scanner laser 3D per profili laminati a caldo/freddo e trafilati
Creators: name: Mommo, Sacha
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Il presente rapporto è il frutto del lavoro di tesi del corso di ingegneria meccanica realizzato per l’azienda Montanstahl. Nell’ambito della produzione, il controllo qualità ha subito un notevole sviluppo durante gli anni, divenendo uno dei punti principali all’interno della catena produttiva. Strumenti di controllo che permettono la digitalizzazione dei campioni e l’abbattimento dei tempi di verifica, garantendo precisioni elevate, risultano essere sempre più indispensabili nel contesto aziendale. In Montanstahl diversi operatori vengono impiegati per effettuare il controllo qualità con un proiettore di profili che richiede un accurata preparazione dei campioni e dei disegni 2D. I dati dei campioni analizzati non vengono oltretutto salvati, in quanto non vi sia un processo digitale diretto che lo permetta. Al fine di risolvere queste problematiche l’azienda ha commissionato il progetto con l’obiettivo di studiare e realizzare un sistema di scansione laser 3D che permetta una rapida verifica dei profili prodotti e la realizzazione di una banca dati digitale contenente le strutture rilevate. La soluzione proposta consiste nell’utilizzare un triangolatore laser Keyence LJ-V7300 già fornito dall’azienda, sul quale è posto un apposito sistema di precisione a lame movimentato da un motorino di tipo piezoelettrico. Il tutto è supportato superiormente da un asse lineare HIWIN installato su una struttura realizzata con profilati di alluminio. Sulla parte inferiore dello scheletro è stato fissato un mandrino al quale vengono agganciati i profili da scansionare. Tutto il sistema di movimentazione della slitta, rotazione del mandrino, escursione del piezoelettrico, acquisizione delle nuvole di punti e l’interfacciamento con l’utente è realizzato con il software Matlab. 2/2 La possibilità di poter effettuare e salvare rapidamente le acquisizioni dei profili prodotti offre una vasta gamma di vantaggi, primo tra tutti un notevole risparmio in termini di tempo su tutto il processo di verifica qualità che si traduce in guadagno da parte dell’azienda. Apre inoltre nuove porte per lo sviluppo di progetti futuri legati all’integrazione dell’intelligenza artificiale nel processo produttivo
Characterization of γ-glutamyl cysteine ligases from Limosilactobacillus reuteri producing kokumi-active γ-glutamyl dipeptides
Creators: Xie, Jin
Gänzle, Michael G.
Publisher: name: University of Alberta Library
Year: 2021

γ-Glutamyl cysteine ligases (Gcls) catalyze the first step of glutathione synthesis in prokaryotes and many eukaryotes. This study aimed to determine the biochemical properties of three different Gcls from strains of Limosilactobacillus reuteri that accumulate γ-glutamyl dipeptides. Gcl1, Gcl2, and Gcl3 were heterologously expressed in Escherichia coli and purified by affinity chromatography. Gcl1, Gcl2, and Gcl2 exhibited biochemical with respect to the requirement for metal ions, the optimum pH and temperature of activity, and the kinetic constants for the substrates cysteine and glutamate. The substrate specificities of the three Gcls to 14 amino acids were assessed by liquid chromatography–mass spectrometry. All three Gcls converted ala, met, glu, and gln into the corresponding γ-glutamyl dipeptides. None of the three were active with val, asp, and his. Gcl1 and Gcl3 but not Gcl2 formed γ-glu-leu, γ-glu-ile, and γ-glu-phe; Gcl3 exhibited stronger activity with gly, pro, and asp when compared to Gcl2. Phylogenetic analysis of Gcl and the Gcl-domain of GshAB in lactobacilli demonstrated that most of Gcls were present in heterofermentative lactobacilli, while GshAB was identified predominantly in homofermentative lactobacilli. This distribution suggests a different ecological role of the enzyme in homofermentative and heterofermentative lactobacilli. In conclusion, three Gcls exhibited similar biochemical properties but differed with respect to their substrate specificity and thus the synthesis of kokumi-active γ-glutamyl dipeptides.
Electromagnetic moments of quasi-stable baryons
Creators: name: Ledwig, T.
name: Martin-Camalich, J.
name: Pascalutsa, V.
name: Vanderhaeghen, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We address electromagnetic properties of quasi-stable baryons in the context of chiral extrapolations of lattice QCD results. For particles near their decay threshold we show that the application of a small external magnetic field changes the particle's energy in a non-analytic way. Conventional electromagnetic moments are only well-defined when the background field B satisfies |eB|/(2M_*|M_*-M-m|) where M_* is the mass of the resonance and M, m the masses of the decay products. An application of this situation is the chiral extrapolation of Delta(1232)-isobar electromagnetic properties. We discuss such an extrapolation of the Delta(1232)-isobar magnetic dipole, electric quadrupole and magnetic octupole moments by a covariant chiral effective field theory.
description: 4 pages, 3 figures, prepared for Proceedings of the 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU10), Williamsburg VA, USA, May 31-June 4, 2010
title: Creation and Evaluation of Interactive Learning Modules for Computer Science Education
Creators: name: Neema, Milan
Publisher: name: Utah State University
Year: 2010

description: The National Science Foundation (NSF) spends substantial resources to improve math and science education in United States. The ultimate goals of these programs are to produce qualified students that pursue careers in math and science. In this project, we examine novel Interactive Learning Modules (ILMs) that may help to improve computer science education. This study examines the usefulness of using interactive learning modules with other traditional methods of teaching. Specifically, we provide an initial validation of this usefulness through an evaluation of students' attitudes toward computer science. The results from the Teacher Survey and ILM Survey show that an ILM helps students to understand a topic better if they are provided with a brief knowledge about the topic. Attitude Survey result shows that a student is willing to take more computing classes if s/he is confident, has interest in computing courses, or believes that it will help them in getting a good job.
title: Processing and Manipulation of Data Collected from the Educational On-Line Game Refraction
Creators: name: Dai, Xiaotian
Publisher: name: Utah State University
Year: 2013

description: A team of students, artists, and researchers at the Center for Game Science at the
University of Washington are trying to create video games that can discover optimal
pathways for learning. They have focused so far on early mathematics education,
including topics such as fractions and algebra, which are some of the main bottlenecks
preventing students from pursuing a career in science. As a result, the educational
on-line game \Refraction" was created, which is aimed at students who start learning
fraction computations. When the students are playing the game online, all the data
and information, such as mouse movements and mouse clicks, are stored in datasets
of dierent formats. In this MS report, we will develop functions in the R software
environment that will allow other researchers to easily process and manipulate the
data generated from this game for future statistical analyses.
title: The Benefits of Using Building Information Modeling in Structural Engineering
Creators: name: Hunt, Cesar Augusto
Publisher: name: Utah State University
Year: 2013

description: This paper explores how the use of Building Information Modeling (BIM) can be a beneficial platform for structural engineers. The current state of BIM is analyzed, giving a general overview on how architectural; engineering and construction firms are applying it on their projects. The applicability of BIM to structural engineering is discussed, and how it impacts the structural design and its workflow. The benefits of using BIM in structural engineering are then analyzed, in the areas of productivity, coordination, and visualization, and a case study is developed to test the interoperability between BIM software and structural analysis software. The findings of this study provide useful information for everyone interested in increasing their knowledge on BIM technology in structural engineering.
Surface convection and red giants radii measurements
Creators: name: Piau, L.
name: Kervella, P.
name: Dib, S.
name: Hauschildt, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The phenomenological models of convection use characteristic length scales they do not determine but that are chosen to fit solar or stellar observations. We investigate if changes of these length scales are required between the Sun and low mass stars on the red giant branch (RGB). The question is addressed jointly in the frameworks of the mixing length theory and of the full spectrum of turbulence model. For both models, the convective length scale is assumed to be a fixed fraction of the local pressure scale height. We use constraints coming from the observed effective temperatures and linear radii independently. We rely on a sample of 38 nearby giants and subgiants for which surface temperatures and luminosities are known accurately and the radii are determined through interferometry to better than 10%. For the few cases where the stellar masses were determined by asteroseismological measurements, we computed dedicated models. First we calibrate the solar models. Then, with the same physics, we compute RGB models for masses between 0.9 Mo and 2.5 Mo and metallicities ranging from $\rm [Fe/H]=-0.34$ to solar. The evolution is followed up to 1000 Lo. A special attention is given to the opacities and to the non grey atmosphere models used as boundary conditions for which the model of convection is the same as in the interior. We find that for both the mixing length theory and the full spectrum of turbulence model the characteristic solar length scale for convection has to be slightly reduced to fit the lower edge of the observed RGB. The corresponding models also better match the expected mass distribution on the RGB and are in better agreement to the seismic constraints. These results are robust whether effective temperatures determined spectroscopically or radii determined interferometrically are used.
description: Accepted to Astronomy and Astrophysics 15 pages, 10 figures, 5 tables
title: Observational Study and Treatment of Problem Behavior Associated with Transitions of Two Elementary School Children with Disabilities
Creators: name: Hollingshead, Brian K.
Publisher: name: Utah State University
Year: 2013

description: I examined the effects of an intervention based on an observational study to treat two children’s problem behaviors, which were associated with transitions. Participants were one 7 year old boy with the educational classification of intellectual disability, and a 10 year old girl with the educational classification of multiple disabilities. There were three phases in this project. In phase 1, a preliminary observational study was conducted to identify the antecedent and consequent events that seemed to be affecting the occurrence of problem behavior during transitions from one activity/location to another. Next was Phase 2, in which a preference assessment was administered to help determine activities/edibles to be used as reinforcers for appropriate behavior during the study. Phase 3 applied an intervention that was determined based on the data from the observational study and the preference assessment. The intervention was designed to address the function of the problem behavior and thereby decrease it.
The Garden Club of East Hampton, Executive Committee Reports, 1963 & 1971-1976
Creators: name: (:Unas)
Publisher: name: Garden Club of East Hampton
Year: 1963
Subjects: Gardening
Gardens
Social organizations
Organizations
East Hampton (N.Y.)

description: This is a executive committee minuets report of the Garden Club of East Hampton covering years 1963 and 1971 through 1976
Zeta(n) via hyperbolic functions
Creators: name: D'Avanzo, Joseph T.
name: Krylov, Nikolai A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26B15, 11M06

description: We present here an approach to a computation of $ζ(2)$ by changing variables in the double integral using hyperbolic trig functions. We also apply this approach to present $ζ(n)$, when $n>2$, as a definite improper integral of single variable.
description: 10 pages, 1 figure, to be published in Involve, a Journal of Mathematics. A recent paper was added to the reference list
title: Effects of Cordon Pricing on PM2.5 Production in an Inversion Prone Area: A Case Study in Cache County, Utah.
Creators: name: Brady, Brandon Charles
Publisher: name: Utah State University
Year: 2013

description: The main objective of this research was to investigate the possibility of a cordon area pricing scheme in an inversion prone area to reduce fine particulate matter (PM2.5) production and to give decision makers more options when it comes to reducing pollution. This project presents a case study in Cache County, Utah to determine the impact that a cordon area-pricing scheme would have in reducing the pollution. Cache Metropolitan Planning Organization (CMPO) provided a CUBE Voyager model of the county that was used and changed to measure vehicle miles travelled (VMT) from different scenarios for the years 2010, 2020, 2030, and 2035. A literature review was done on other cordon area pricing schemes from around the world to compare and use similar number in the modeling. Then the VMT was used to measure emissions using the emission rates from the CMPO’s MOBILE6.2 emissions model for all years. This project explains how the CUBE Voyager model of Cache County was developed and which parts were changed to model a cordon area-pricing scheme. The script file in the highway assignment section of the model was changed and only the external trips were reduced. The model has two different classifications of vehicles, long and short, that were changed differently for each scenario. There were four scenarios run in the model with two different types of data sets. Scenario 1 was a “do nothing” scenario that was run without any changes in the model and used as a base for comparison for the other scenarios. Scenario 2 was to reduce the external trips for both long and short vehicle trips by 20%. Scenario 3 was to reduce long vehicle external trips by 50% and short vehicle external trips by 20%. Scenario 4 was to reduce the long vehicle external trips by 100% and the short vehicle external trips by 20%. The two different types of data sets was one with the 2010 network used for all years denoted as a “No Build” network and the other used the data with each phase of highway capacity projects completed denoted as “With Phases.” The pollution reduction for all the scenarios was analyzed and recommendations were given.
title: Education and London Missionary Society policy in their Cape and Bechuana missions from 1800 to 1925
Creators: name: Goulstone George, John
Publisher: name: University of Kent
Year: 2023

description: This study is concerned with the origins and implementation of the London Missionary Society's educational policy in Southern Africa during the nineteenth century. Education is understood in this context to comprehend not only formal schooling, but informal processes of acculturation for African peoples in mission stations and institutions, including the political activity of missionaries facilitating such transformations. This definition is in line with general objectives of Protestant mission education (the Edinburgh Missionary Conference, 1910 - the Burton Commission, 1922 - Goodall, 1954), which were intended to foster personal evangelisation; to produce indigenous Christian leaders; to develop just, moral communities of Christian converts. Van der Kemp, the first L.M.S. missionary leader was "sui generis" but his Khoi (Hottentot) policy was adapted by John Philip (Cape Superintendent from 1821-1854), a "developer" and humanitarian imperialist. Philip advocated formal schooling and informal acculturation of Khoi peoples, so that, occupying "buffer" states (the Kat River Protectorate and Griqualand), their newly-acquired Christian values, and entrepreneurial attitudes could filter through to the African peoples beyond. To clarify Philip's strategy, two L.M.S. proselytising traditions - here termed "dialectic" and "dialogic" - are analysed.
Solutions of the bound state Faddeev-Yakubovsky equations in three dimensions by using NN and 3N potential models
Creators: name: Hadizadeh, M. R.
name: Tomio, Lauro
name: Bayegan, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A recently developed three-dimensional approach (without partial-wave decomposition) is considered to investigate solutions of Faddeev-Yakubovsky integral equations in momentum space for three- and four-body bound states, with the inclusion of three-body forces. In the calculations of the binding energies, spin-dependent nucleon-nucleon (NN) potential models (named, S$_{3}$, MT-I/III, YS-type and P$_{5.5}$GL) are considered along with the scalar two-meson exchange three-body potential. Good agreement of the presently reported results with the ones obtained by other techniques are obtained, demonstrating the advantage of an approach in which the formalism is much more simplified and easy to manage for direct computation.
description: 16 pages, 1 figure and 6 tables; to appear in Physical review C
Additional file 2 of Comparison of anterior corneal aberrations measured by Scheimpflug and Placido Disc System for myopes
Creators: name: Lou, Wei
name: Du, Wei
name: Jin, Haiying
name: Hu, Ying
Publisher: name: figshare
Year: 2023
Subjects: Space Science
Medicine
Molecular Biology
Pharmacology
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Developmental Biology
Science Policy
Hematology
Computational Biology

description: Additional file 2: Supplemental Table 2. Mean differences and 95% Limits of Agreement(LoA) between the Pentacam and the KR-1W.
Remembering the Holocaust in a Racial State: Cultural and Discursive Aspects of Holocaust Memory in South Africa from Apartheid to Democracy (1948-1994)
Creators: name: Mikel Arieli, Roni
Publisher: name: Zenodo
Year: 2019
Subjects: apartheid, post-apartheid, Holocaust, memory studies

description: PhD dissertation written at The Hebrew University of Jerusalem with partial support from the European Research Council, under the supervision of Professor Louise Bethlehem and Professor Amos Goldberg.
Le rappresentazioni grafiche sul percorso casa-scuola nei bambini di prima elementare
Creators: name: Messineo, Alice
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2015

description: Il presente lavoro di ricerca considera e analizza come si sono trasformate le rappresentazioni grafiche del percorso casa-scuola, di allievi di prima elementare, in seguito ad un percorso sperimentale didattico che mirava a raffinare e sviluppare le competenze degli allievi in ambito topologico e metrico. La sperimentazione didattica si è protratta su un arco temporale di due mesi. Essa ha previsto degli interventi mirati e diversificati in cui sono state svolte delle uscite di studio e delle attività legate al lavoro sul plastico. In seguito alla raccolta e analisi dei dati emersi, secondo il paradigma della ricerca qualitativa, è risultato che le rappresentazioni grafiche in entrata contengono pochi punti di riferimento, i percorsi sono poco realistici ed evidenziano una forte connotazione soggettiva legata alla componente emotivo-affettiva. Nella maggioranza dei casi la proporzione metrica non viene rispettata, al contrario le caratteristiche topologiche mantengono la sequenza corretta con la quale i vari elementi sono incontrati lungo il percorso casa-scuola. Le rappresentazioni grafiche in uscita, invece, appaiono più strutturate, meglio organizzate, i punti di riferimento aumentano in modo significativo e le rappresentazioni si trasformano diventando sempre più paragonabile a mappe viste dall’alto. Gli allievi conservano le relazioni topologiche e l’aspetto metrico si raffina, anche se risulta presente solo come un abbozzo imperfetto. Docenti relatori: Rossana Falcade e Silvia Sbaragli
Islamic technoscience : machines, politics, and gender in Iran’s cultural revolution (1980-1983)
Creators: name: Heshmati, Ataollah
Publisher: name: University of British Columbia
Year: 2021

description: This thesis explores the relationship between science, technology, Islam, and politics in postrevolutionary Iran. The central question of this thesis is how a group of Islamist revolutionaries utilized science and technology to consolidate power in the Islamic Republic state and neutralize other competing factions involved in the 1979 revolution. I mainly focus on the events of Iran’s Cultural Revolution in the spring of 1980, which shut down all universities for three years and gave birth to two new revolutionary institutions: a policymaking council, called the Headquarters of the Cultural Revolution (HCR) and a nation-wide network of Islamist students who overthrew university administrations, called the University Jehad (UJ). Along with other pre-existing bureaucratic organizations, these revolutionary bodies governed science and technology in postrevolutionary Iran. I argue that the institutional and ideological tensions between these new institutions and with older bureaucratic organizations exemplify the crisis of the Islamic Republic state in the early 1980s. To understand the relevance of science and technology in the state-building processes in postrevolutionary Iran, this thesis is the first to examine the history of a new form of technoscientific enterprise pursued by the HCR, called “Islamic technoscience”. Islamic technoscience is the embodiment of the revolutionary doctrines of independence, self-sufficiency, and anti-colonial science materialized in a set of small and simply-designed machines meant to protect the state’s food security, economic resilience, and employment market. These machines, along with other achievements of the Islamized universities, were celebrated and displayed at the HCR’s science fairs, on the anniversaries of the Cultural Revolution. Showcasing these material artifacts, these exhibitions featured the binary between colonial science and Islamic technoscience demonstrating the importance of politics in the design of technology. In addition, I study the social relevance of Islamic technoscience examining the relationship between gender roles and the technoscientific ambitions of the state. Through a deep reading of certain documents revealing the internal ruling relationships within the HCR and UJ, I examine the major restrictions on women’s enrolment in technical, engineering, and agricultural subjects as well as the acts of resistance against these policies by Iranian female scientists.
title: A Classroom Experiment: Implementing a Math-Talk Environment in a University Setting
Creators: name: Bodily, Janice
Publisher: name: Utah State University
Year: 2012

description: A need for reform in teaching mathematics has long been recognized. The traditional classroom with the sage on the stage lacks a higher level of engagement for the students and therefore, produces a lower level of student satisfaction. The math-talk classroom is one attempt to engage students and to raise the level of interaction and discussion, thus enabling students to increase their level of comprehension. In an effort to create a math-talk experience in my Calculus II course, I applied the methodology of Thinking Through a Lesson Protocol (TTLP) to test its effectiveness in assisting the instructor in creating an atmosphere conducive to student discussions (or math-talk).
title: 3-Way Test Suite Prioritization and Fault Detection: A Case Study
Creators: name: Roy Chaudhuri, Arjun
Publisher: name: Utah State University
Year: 2013

description: GUI and web based applications are becoming universal. Functional accuracy of those applications is vital. Software defects caused by poor software testing can cost billions of dollars. Further, web application defects can be costly due to the fact that most web applications handle regular user interaction. By improving the time efficiency of software testing, many of the costs associated with defects can be saved. Web application users generate large numbers of possible test-cases and out of all those test-cases only some of them are vital for functional testing. Therefore testing correctness of these applications is expensive and time consuming and hence challenging at times. However, software testing is often under time and budget constraints. Earlier studies came up with different abstract models to face this kind of challenges where a tester can select and execute a subset of all the possible test-cases (test-°©‐case prioritization) based on some criterion to assure performance goal. In the context of test suite prioritization, earlier studies showed that 2-way inter-window interaction coverage/criteria are effective at finding faults quickly in the test execution cycle. However, since faults may be caused by interactions between more than 2 parameters, in this project we exercise test suite prioritization by t-way combinatorial coverage of inter-window interactions on an existing web application Music-Store. Our results show that the rates of fault detection for 2-way and 3-way prioritization are very close to each other.
Materiali organici nella conservazione e restauro delle pitture murali. Valutazione della loro igroscopicità
Creators: name: Cisotto, Alaina
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2015

description: L’igroscopicità è la capacità di alcuni materiali di assorbire le molecole d’acqua dall’ambiente circostante. Per quanto concerne il campo del restauro, sono ben noti gli effetti dell’igroscopicità sui materiali costitutivi delle opere, ma è necessario tener conto anche degli effetti dati dai prodotti che vengono applicati. Lo scopo di questo studio quindi, è stato quello di valutare l’igroscopicità a diversi intervalli di umidità relativa di 14 adesivi e consolidanti usati nel restauro delle pitture murali.
Quantum Phase Diffusion in a Small Underdamped Josephson Junction
Creators: name: Yu, H. F.
name: Zhu, X. B.
name: Peng, Z. H.
name: Tian, Ye
name: Cui, D. J.
name: Chen, G. H.
name: Zheng, D. N.
name: Jing, X. N.
name: Lu, Li
name: Zhao, S. P.
name: Han, Siyuan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Quantum phase diffusion in a small underdamped Nb/AlO$_x$/Nb junction ($\sim$ 0.4 $μ$m$^2$) is demonstrated in a wide temperature range of 25-140 mK where macroscopic quantum tunneling (MQT) is the dominant escape mechanism. We propose a two-step transition model to describe the switching process in which the escape rate out of the potential well and the transition rate from phase diffusion to the running state are considered. The transition rate extracted from the experimental switching current distribution follows the predicted Arrhenius law in the thermal regime but is greatly enhanced when MQT becomes dominant.
description: 4 pages, 4 figures, 1 table
Additional file 3 of Understanding school food systems to support the development and implementation of food based policies and interventions
Creators: name: Bryant, Maria
name: Burton, Wendy
name: O’Kane, Niamh
name: Woodside, Jayne V.
name: Ahern, Sara
name: Garnett, Phillip
name: Spence, Suzanne
name: Sharif, Amir
name: Rutter, Harry
name: Baker, Tim
name: Evans, Charlotte E. L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Additional file 3. Sampling frame for recruitment.
Frustrated symmetries in multi-Higgs-doublet models
Creators: name: Ivanov, Igor P.
name: Keus, Venus
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within multi-Higgs-doublet models, one can impose symmetries on the Higgs potential, either discrete or continuous, that mix several doublets. In two-Higgs-doublet model any such symmetry can be conserved or spontaneously violated after the electroweak symmetry breaking (EWSB), depending on the coefficients of the potential. With more than two doublets, there exist symmetries which are always spontaneously violated after EWSB. We discuss the origin of this phenomenon and show its similarity to geometric frustration in condensed-matter physics.
description: 7 pages, no figures
Confined site construction an empirical analysis of factors impacting health and safety management
Creators: name: SPILLANE, JOHN
name: O. Oyedele, Lukumon
name: von Meding, Jason
Publisher: name: University of Limerick
Year: 2023
Subjects: Construction engineering

description: Purpose – The purpose of this paper is to identify, clarify and tabulate the various managerial issues encountered, to aid in the management of the complex health and safety concerns which occur within a confined construction site environment. Design/methodology/approach – This is achieved through conducting extensive qualitative and qualitative research in the form of case studies, interviews and questionnaire survey. Findings – The leading managerial issues in the management of health and safety on a confined construction site are found to be: “Difficulty to move materials around site safely”; “Lack of adequate room for the effective handling of materials”; “Difficulty in ensuring site is tidy and all plant and materials are stored safely”; “Close proximity of individuals to operation of large plant and machinery”; and joint fifth “Difficulty in ensuring proper arrangement and collection of wastematerials on-site” along with “Difficulty in controlling hazardous materials and equipment on site” Practical implications – The resulting implication for practice of these results can be summarised by identifying that with sustained development of urban centres on a global scale, coupled with the increasing complexity of architectural designs, the majority of on-site project management professionals are faced with the onerous task of completing often intricate designs within a limited spatial environment, under strict health and safety parameters. Originality/value – The subsequent value of the findings are such that just as on-site management professionals successfully identify the various managerial issues highlighted, the successful management of health and safety on a confined construction site is attainable
title: Morphological Awareness Dynamic Assessment Task in Third Grade Children: A Feasibility Study
Creators: name: Pike, Katherine
Publisher: name: Utah State University
Year: 2011

description: Purpose: The purpose of this study was to determine whether a) a morphological awareness dynamic assessment task is a sensitive instrument and reveals a range of performance in third grade children, and b) performance on a morphological awareness dynamic assessment task may be significantly improved with dynamic scaffolding.
Method: The participants included twenty-three typically developing third-grade children from an elementary school in the Intermountain West. The morphological awareness dynamic assessment task, adapted from Larsen and Nippold (2007), was administered to each child two times (Initial Trial 1 testing and a subsequent Trial 2 testing 3 days later). This task required children to use their knowledge of familiar base words and suffixes to infer meanings of uncommon, morphologically complex words. The 16 stimulus items were administered with a series of increasingly helpful scaffolds to help facilitate morphological awareness knowledge.
Results: Results revealed a wide range of test performance for children with large standard deviations. A within subject paired sample t-test revealed a statistically significant improvement in scores between Trial 1 and 2 of the morphological awareness dynamic assessment task with 87% of participants demonstrating a positive change or perhaps learning secondary to scaffolds.
Implications: The findings of this study indicate that dynamic assessment may be used as a sensitive test to discriminate a range of performance and may provide treatment insights for individuals with and without literacy deficits.
title: Investment Performance and Price-Earnings Ratios: Basu 1977 Revisited
Creators: name: Criddle, Richard John
Publisher: name: Utah State University
Year: 2013

description: In this work I reexamined Basu’s 1977 work using an out-of-sample, out-of-period test on the returns of a sample of common stock for the period February 2003 to December 2012, from the viewpoint of a rational investor wishing to use data for investment approaches. The data was examined for normalcy, and similar methodology and definitions of ratios and return were used in order to closely follow Basu’s work. I found that the assets in the sample used here do not display the same results found by Basu in regard to the relationship between returns and price-earnings ratio under either the capital asset pricing model, used by Basu, or the more recent Fama-French three factor model.
Ejection velocities of high Galactic latitude runaway stars
Creators: name: Silva, M. D. V.
name: Napiwotzki, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We estimate the distribution of ejection velocities for the known population of high galactic latitude runaway stars. The initial sample is a collection of 174 early-type stars selected from the literature. The stars are first classified according to their evolutionary status in order to obtain a homogeneous sample of 96 genuine main sequence stars. Their present velocities and flight times are then estimated using proper motion data from various astrometric catalogues (including Tycho-2, UCAC2, and USNO-B) and the ejection velocities are computed by tracing their orbits back in time, based on a galactic potential. The potential used is constructed from a mass density model chosen to fit the most recent observational constraints. We find evidence for two different populations of runaway stars: a "high" velocity population, with a maximum ejection velocity of about 400 - 500 km/s, and a "low" velocity population, with a maximum ejection velocity of about 300 km/s. We argue that the observed limit of 500 km/s and the bimodality of the observed ejection velocity distribution are natural consequences of the so-called Binary Ejection Mechanism. We discuss the connection between the "high" velocity population and the so-called hypervelocity stars, showing how previously studied hypervelocity stars are consistent with the results obtained. We also find that some stars that were once thought to be best explained as being formed in the Halo are compatible with a runaway hypothesis once proper motions are included in the analysis. However, three stars in the selected sample appear to be inconsistent with ejection from the galactic disc. Possible scenarios are discussed, including a possible formation in the galactic halo.
description: 23 pages, 9 figures. Accepted for publication in MNRAS
Observation of topological order in a Superconducting doped topological insulator (based on the Bi2Se3 class)
Creators: name: Wray, L. Andrew
name: Xu, Suyang
name: Xia, Yuqi
name: Qian, Dong
name: Fedorov, Alexei V.
name: Lin, Hsin
name: Bansil, Arun
name: Hor, Yew San
name: Cava, Robert J.
name: Hasan, M. Zahid
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological insulators embody a new state of matter characterized entirely by the topological invariants of the bulk electronic structure rather than any form of spontaneously broken symmetry. Unlike the 2D quantum Hall or quantum spin-Hall-like systems, the three dimensional (3D) topological insulators can host magnetism and superconductivity which has generated widespread research activity in condensed-matter and materials-physics communities. Thus there is an explosion of interest in understanding the rich interplay between topological and the broken-symmetry states (such as superconductivity), greatly spurred by proposals that superconductivity introduced into certain band structures will host exotic quasiparticles which are of interest in quantum information science. The observations of superconductivity in doped Bi_2Se_3 (Cu$_x$Bi$_2$Se$_3$) and doped Bi_2Te_3 (Pd$_x$-Bi$_2$Te$_3$ T$_c$ $\sim$ 5K) have raised many intriguing questions about the spin-orbit physics of these ternary complexes while any rigorous theory of superconductivity remains elusive. Here we present key measurements of electron dynamics in systematically tunable normal state of Cu$_x$Bi$_2$Se$_3$ (x=0 to 12%) gaining insights into its spin-orbit behavior and the topological nature of the surface where superconductivity takes place at low temperatures. Our data reveal that superconductivity occurs (in sample compositions) with electrons in a bulk relativistic kinematic regime and we identify that an unconventional doping mechanism causes the topological surface character of the undoped compound to be preserved at the Fermi level of the superconducting compound, where Cooper pairing occurs at low temperatures. These experimental observations provide important clues for developing a theory of topological-superconductivity in 3D topological insulators.
description: 13 pages, 4 Figures, High resolution figures at http://www.princeton.edu/physics/people/faculty/zahid-hasan/
Valutazione dell'accuratezza dei risultati di una simulazione CFD ottenuti partendo da una mesh generata tramite tecnologia 'Mosaic meshing'
Creators: name: Brazzale, Oliviero
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: Il presente studio ha come obiettivo la valutazione dell’accuratezza dei risultati di una simulazione CFD realizzata tramite Mosaic meshing, una recente tecnologia proposta da Ansys. Tale analisi mira a effettuare un confronto su diversi aspetti tra le simulazioni realizzate tramite Mosaic meshing e quelle realizzate con il metodo tradizionale, al fine di rilevare le differenze e i possibili benefici che il nuovo metodo di meshatura a mosaico potrebbe comportare nel processo di risoluzione di casistiche in ambito termo-fluido dinamico computazionale. Facendo riferimento a uno studio fluidodinamico eseguito per un particolare condotto cilindrico, è stato dato avvio a una fase di creazione delle mesh e di simulazione con differenti rifiniture delle griglie e variazione dei parametri del risolutore. Tale procedimento ha portato al confronto dei risultati computazionali con quelli sperimentali, seguito da una valutazione metodologica della validazione e verifica dei risultati ottenuti. Successivamente, è stata eseguita un’analisi con l’aggiunta di scambio termico al fine di valutare ulteriori aspetti delle mesh prese in esame. Le analisi hanno messo in luce una similitudine tra risultati ottenuti dal confronto tra le due tecnologie per il caso fluidodinamico; mentre si sono osservate maggiori differenze nel caso con scambio termico. Sono state inoltre rilevate differenze per quanto riguarda le risorse computazionali e di tempo richieste da ciascun metodo, le quali hanno evidenziato vantaggi e svantaggi per entrambe le tipologie di mesh.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ Ð³Ð¸Ð´ÑÐ¾ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾Ð´ÑÐ¸Ð¿Ð½Ð¸ÐºÐ¾Ð² ÑÐ¿Ð¸Ð½Ð´ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐ·Ð»Ð° ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ½Ð¾-ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ°Ð½ÐºÐ° Ð¼Ð¾Ð´ÐµÐ»Ð¸ 24Ð60
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Investigation of the technical capabilities of hydrostatic bearings of the spindle assembly of the coordinate boring machine model 24K60
Creators: name: Ð Ð¾Ð¼Ð°Ð½Ð¾Ð², ÐÑÑÐµÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐ¾Ð´ÑÐ¸Ð¿Ð½Ð¸ÐºÐ¸ ÑÐºÐ¾Ð»ÑÐ¶ÐµÐ½Ð¸Ñ Ð³Ð¸Ð´ÑÐ¾ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ
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Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÐ¹ Ð¿ÑÐ¾ÑÐµÑÑ
spindle assembly
correction
dynamic quality
frequency characteristics
transient process

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑÑ, Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÐºÐ¾ÑÐ¾ÑÑÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ: Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÐÐ¡Ð, Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¾Ð´Ð¾Ð² ÑÐµÑÐµÐ· Ð¾Ð¿Ð¾ÑÑ ÐÐ¡Ð Ð¸ ÑÑÐ¼Ð¼Ð°ÑÐ½ÑÐµ Ð¿Ð¾ÑÐµÑÐ¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° Ð¿ÑÐ¾Ð²ÐµÑÐºÐ° Ð¿Ð¾ Ð¿ÐµÑÐµÐ³ÑÐµÐ²Ñ Ð¿Ð¾Ð´ÑÐ¸Ð¿Ð½Ð¸ÐºÐ¾Ð². Ð¢Ð°Ðº Ð¶Ðµ Ð² Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ Ð¿ÑÐ¾Ð³Ð¸Ð±Ñ ÑÐ¿Ð¸Ð½Ð´ÐµÐ»Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¾ÑÐ¼ÑÐ» ÐºÑÑÑÐ° ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð². ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´Ð»Ñ Ð´ÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÐµÐµ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·: Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ñ Ð³ÑÐ°ÑÐ¸ÐºÐ¸ ÐÐÐ§Ð¥, ÐÐ¤Ð§Ð¥ Ð¸ Ð¿ÐµÑÐµÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÐ¸ÑÑÐµÐ¼Ñ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÐºÐ¾ÑÑÐµÐºÑÐ¸Ñ Ð² ÑÐ²ÑÐ·Ð¸ Ñ Ð½Ð¸Ð·ÐºÐ¸Ð¼ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¼ ÐºÐ°ÑÐµÑÑÐ²Ð¾Ð¼ Ð¸ÑÑÐ¾Ð´Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÐÐ¡Ð Ð¸ ÐºÐ¾Ð»ÐµÐ±Ð°ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð² Ð½ÐµÐ¹.
description: In the given work, static and energy calculations were performed, which resulted in the determination of the geometric parameters of the GSB, the flow rates through the GSB supports, and the total power loss. An overheated bearing check was performed. Also in this chapter the spindle deflections are calculated based on the formulas of the course of resistance of materials. The description of the dynamic model for the throttle control system and its dynamic analysis are given: LAFC, LFCCH and transient system graphs are built. A correction has been developed due to the low dynamic quality of the original system of automatic control of GPS and oscillation in it.
Spectroscopic parameters and rest frequencies of isotopic methylidynium, CH+
Creators: name: Mueller, Holger S. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Astronomical observations toward Sagittarius B2(M) as well as other sources with APEX have recently suggested that the rest frequency of the J = 1 - 0 transitions of 13CH+ is too low by about 80 MHz. Improved rest frequencies of isotopologs of methylidynium should be derived to support analyses of spectral recording obtained with the ongoing Herschel mission or the upcoming SOFIA. Laboratory electronic spectra of four isotopologs of CH+ have been subjected to one global least-squares fit. Laboratory data for the J = 1 - 0 ground state rotational transitions of CH+, 13CH+, and CD+, which became available during the refereeing process, have been included in the fit as well. An accurate set of spectroscopic parameters has been obtained together with equilibrium bond lengths and accurate rest frequencies for six CH+ isotopologs: CH+, 13CH+, 13CD+, CD+, 14CH+, and CT+. The present data will be useful for the analyses of $Herschel$ or SOFIA observations of methylidynium isotopic species.
description: Astronomy and Astrophysics, accepted as Letter; 4 (here 5) pages