cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stereotyping of mathematics as a male domain : a factor in females non-participation in mathematics
Creators: name: Chappell, Vivian Marie
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to determine if a relationship exists between the extent of stereotyping of mathematics as masculine in nature, and the non-participation of females in mathematics courses. Data from the 1985 B.C. Mathematics Assessment were used to determine the extent of stereotyping of mathematics as a male domain by Grade 7 and 10 students. Future mathematics plans of Grade 10 students were also examined. The data were analyzed using t-tests and Chi square tests of significance in order to determine if a relationship existed. While it was found that males stereotyped mathematics as a male domain significantly more than females at both grade levels, the results indicated that neither males nor females stereotyped mathematics as masculine at either grade level. When the extent of stereotyping of Grade 10 students was compared to their future mathematics plans in Grades 11 and 12, there was no significant difference between the extent of stereotyping of students who planned to take an academic mathematics course in Grade 11 and those who planned to take a non-academic course. When participation or non-participation in Grade 12 courses was examined, there was no significant difference in the extent of stereotyping between those students who planned to take a mathematics course and those who did not.
Experimental and numerical studies of mild combustion processes in model reactors
Creators: name: Sabia, Pino
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2006

description: Lo scopo della tesi è stato lo studio del comportamento di reattori chimici elementari nelle condizioni tipiche della combustione “dolce”. L’attività è stata essenzialmente di tipo sperimentale ed ha riguardato sia lo studio cinetico e dinamico di un reattore in flusso a perfetta miscelazione sia la progettazione di un reattore tubolare sul quale approfondire il comportamento di flussi reagenti in condizioni di alta temperatura e alta diluizione. Lo studio è stato affiancato da un’accurata modellazione numerica che ha consentito di determinare gli stadi controllanti la cinetica di idrocarburi modello, come il metano e le sue miscele con idrogeno, nelle condizioni della combustione “dolce”.
I risultati sperimentali hanno messo in luce l’insorgere di peculiari fenomeni di oscillazione della temperatura con una articolata fenomenologia di comportamenti dinamici. Sulla base di un confronto tra risultati sperimentali e numerici si sono individuati i meccanismi cinetici responsabili di questa fenomenologia. Quindi i risultati permettono da una parte la comprensione più approfondita delle cinetiche di ossidazione del metano e dall’altra inducono l’individuazione delle condizioni operative in cui effettuare il processo di combustione “dolce”. Infatti tali regimi dinamici implicano una riduzione dell’efficienza del processo di combustione e un aumento della formazione di specie inquinanti.
Inoltre è stato progettato e realizzato un reattore tubolare, considerando tutte le problematiche annesse alla necessità di fronteggiare le alte temperature iniziali tipiche della combustione dolce e la miscelazione dei reagenti in queste estreme condizioni di lavoro. Tale configurazione reattoristica consentirà l’approfondimento dello studio dell’ossidazione di idrocarburi e miscele-idrocarburi nelle condizioni tipiche della combustione dolce”.
Abgeurteilte und Verurteilte in Thüringen 2008
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Tübingen
Year: 2009
Subjects: subject: Strafverfolgung , Thüringen , Statistik
subject: 360

description: Die Strafverfolgungsstatistik erfasst die im Laufe eines Jahres auf Grund gerichtlicher Entscheidungen rechtskräftig abgeurteilten und verurteilten Personen. Von den Strafvollstreckungsbehörden (Staatsanwaltschaften) werden die Daten von Personen, die sich wegen Verbrechen oder Vergehen nach dem Strafgesetzbuch, nach anderen Bundesgesetzen oder nach Landesrecht einschließlich der Straftaten im Straßenverkehr und Staatsschutzdelikten vor Gericht verantworten mussten, in anonymisierter Form an das Statistische Landesamt übermittelt. Ordnungswidrigkeiten, auch wenn sie in die Zuständigkeit der Strafgerichte fallen, werden durch diese Statistik nicht erfasst. Unterschieden wird dabei in Abgeurteilte und Verurteilte nach allgemeinem Strafrecht und nach Jugendstrafrecht einschließlich nach ehemaligem DDR-Strafrecht. In Thüringen wurde diese Statistik mit Wirkung vom 1. Oktober 1996 erstmals erhoben. In Erwartung des in Vorbereitung befindlichen Rechtspflegestatistikgesetzes war diese Statistik zunächst nicht eingeführt worden. Da die entsprechenden statistischen Informationen auch in Thüringen benötigt werden, erfolgte die Einführung schließlich auf der Grundlage des § 6 des Thüringer Statistikgesetzes. Erste Veröffentlichungen dazu erfolgten im Dezember 1998 für das Berichtsjahr 1997. Im vorliegenden Bericht werden diese Ergebnisse für das Jahr 2008 dokumentiert.
Parameter Estimation with Mixed-State Quantum Computation
Creators: name: Somma, Rolando D.
name: Boixo, Sergio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a quantum algorithm to estimate parameters at the quantum metrology limit using deterministic quantum computation with one bit. When the interactions occurring in a quantum system are described by a Hamiltonian $H= θH_0$, we estimate $θ$ by zooming in on previous estimations and by implementing an adaptive Bayesian procedure. The final result of the algorithm is an updated estimation of $θ$ whose variance has been decreased in proportion to the time of evolution under H. For the problem of estimating several parameters, we implement dynamical-decoupling techniques and use the results of single parameter estimation. The cases of discrete-time evolution and reference-frame alignment are also discussed within the adaptive approach.
description: 12 pages. Improved introduction and technical details moved to Appendix
VALORE DELL'ARTROPLASTICA PER ESCISSIONE NELLE PATOLOGIE IRREVERSIBILI DELL'ANCA NEL CANE
Creators: name: Guardascione, Anna
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Tra il gennaio 2003 e il gennaio 2011 sono stati effettuati, presso la Sezione di Chirurgia del Dipartimento di Scienze Cliniche Veterinarie dell’Università degli Studi di Napoli Federico II, 41 interventi di artroplastica per escissione per il trattamento di diverse patologie irreversibili dell’anca nel cane.
La tecnica utilizzata prevedeva in tutti i casi un accesso cranio-laterale all’articolazione dell’anca senza interposizione di flap muscolari tra la sede di ostectomia femorale e l’acetabolo. L’indicazione più frequente per cui è stato richiesto l’intervento è stata la necrosi asettica della testa del femore o morbo di Legg-Perthes-Calvè, seguita dalla displasia d’anca (nella maggior parte dei casi associata a alterazioni degenerative dell’articolazione) e da lussazioni coxofemorali non riducibili o croniche; in un minor numero di casi i soggetti trattati erano affetti da distacco epifisario della testa o frattura del collo del femore o da fratture acetabolari. E’ stato effettuato uno studio retrospettivo al fine di valutare i risultati clinici della tecnica utilizzata nelle differenti patologie e nelle differenti taglie delle razze trattate.
ByzRev 03.2021.007: Margaret Mullett – Robert G. Ousterhout (eds.), The Holy Apostles: A Lost Monument, a Forgotten Project, and the Presentness of the Past
Creators: name: Marinis, Vasilis
Publisher: name: The Byzantine Review
Year: 2021

description: Margaret Mullett – Robert G. Ousterhout (eds.), The Holy Apostles: A Lost Monument, a Forgotten Project, and the Presentness of the Past (Dumbarton Oaks Byzantine Symposia and Colloquia). Washington, D.C.: Dumbarton Oaks Research Library and Collection 2020. IX, 448 pp. – ISBN: 978-0-88402-464-4
description: The Byzantine Review, Bd. 3 (2021)
Abgeurteilte und Verurteilte in Thüringen 2012
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Tübingen
Year: 2014
Subjects: subject: Strafverfolgung , Thüringen , Statistik
subject: 360

description: abgeurteilten und verurteilten Personen. Von den Strafvollstreckungsbehörden (Staatsanwaltschaften) werden die Daten von Personen, die sich wegen Verbrechen oder Vergehen nach dem Strafgesetzbuch, nach anderen Bundesgesetzen oder nach Landesrecht einschließlich der Straftaten im Straßenverkehr und Staatsschutzdelikten vor Gericht verantworten mussten, in anonymisierter Form an das Statistische Landesamt übermittelt. Ordnungswidrigkeiten, auch wenn sie in die Zuständigkeit der Strafgerichte fallen, werden durch diese Statistik nicht erfasst. Unterschieden wird dabei in Abgeurteilte und Verurteilte nach allgemeinem Strafrecht und nach Jugendstrafrecht einschließlich nach ehemaligem DDR-Strafrecht. In Thüringen wurde diese Statistik mit Wirkung vom 1. Oktober 1996 erstmals erhoben. Gesetzliche Grundlage bildet der § 6 des Thüringer Statistikgesetzes in Verbindung mit der Verwaltungsvorschrift des Ministers für Justiz- und Europaangelegenheiten vom 27. Februar 1998 (4206-1/92).
CA-SBA-744: Archaeological site record for CA-SBA-744
Creators: name: Kekich, Jessica
Year: 1971
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: CA-SBA-744
valueUri: https://core.tdar.org/browse/site-name/136925/ca-sba-744
subject: Chipping Station
valueUri: https://core.tdar.org/browse/site-type/1040/chipping-station
subject: Quarry
valueUri: https://core.tdar.org/browse/site-type/293/quarry
subject: Monterey Chert
valueUri: https://core.tdar.org/browse/material-type/334/monterey-chert
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Core
valueUri: https://core.tdar.org/browse/other-keyword/618/core
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview

description: This document is the archaeological site record for CA-SBA-744. The record consists of 1 recordation event.
Thermodynamics education for energy transformation: a Stirling Engine experiment
Creators: name: Yeadon, Will
name: Quinn, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We present a thermodynamics experiment suitable for first year undergraduate students employing Stirling Engines to create a demonstration of energy transformation and to measure the mechanical efficiency of such engines. Using an inexpensive transparent chambered Stirling Engine, students can connect concepts such as the theoretical pressure-volume diagram with the physical movements of the engine's pistons and the resultant useful output work of a spinning wheel. We found the majority of students successfully complete this experiment obtaining results similar to when performed by the authors. In addition to the core thermodynamics lesson, this experiment incorporates DC circuits, oscilloscopes, and data analysis so it can be integrated into a wider undergraduate physics course to combine the teaching of multiple subjects.
description: 15 pages, 6 figures
Cyclocoelidae Stossich 1902
Creators: name: Dronen, Norman O.
name: Blend, Charles K.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Cyclocoelidae

description: Family Cyclocoelidae Stossich, 1902   Diagnosis. Medium-sized to large flatworms, lanceolate, body often tapered anteriorly and rounded posteriorly. Oral sucker, if present, usually poorly developed. Acetabulum generally absent, but reported in some species. Mouth subterminal, prepharynx generally shorter than esophagus, ceca frequently simple, inner wall sometimes irregular, undulating in overall appearance in some species, united near posterior extremity to form characteristic cyclocoel. Testes oval to elongate, borders smooth or irregular, tandem to diagonal, rarely side by side, usually located near posterior end, but may be equatorial to preequatorial in some species. Genital pore near midline of body, prepharyngeal, pharyngeal or postpharyngeal. Cirrus sac present, enclosing seminal vesicle, extending posteriorly to level of posterior aspect of esophagus to immediately postbifurcal. Ovary oval to elongate, intertesticular, pretesticular or posttesticular, forming a triangle or in a straight line with testes. Uterus intercecal to extracecal, uterine seminal receptacle present in some species. Vitellarium follicular, ventral and somewhat lateral to ceca, vitelline fields reaching to, or beyond, cecal bifurcation anteriorly, confluent posteriorly or not. Excretory vesicle generally Y-shaped, branches extending anterior to level of pharynx or beyond, reticulate where known. Excretory pore usually somewhat subterminal opening on dorsal surface, may approach being terminal in some species. Life cycles, where known, utilize either freshwater or terrestrial snails, polyembryony produces tailless cercariae that encyst in either the rediae where they were produced or in the tissue of snails. Adults in body cavity, lungs, air sacs, nasal and infraorbital sinuses, or hypothalamus of birds.
 Type genus. Cyclocoelum Brandes, 1892.
description: Published as part of Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1) on page 9, DOI: 10.11646/zootaxa.4053.1.1, http://zenodo.org/record/237117
Fitotossine di Inula viscosa per il controllo di piante parassite
Creators: name: Avolio, Fabiana
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Le piante parassite sono incapaci di sintetizzare dagli elementi minerali e nutritivi materiali sufficienti per la loro crescita e sopperiscono a questa deficienza fisiologica utilizzando le sostanze elaborate dalle piante ospiti, che di conseguenza manifestano generalmente una crescita ridotta.
Le Orobanche, la Striga e la Cuscuta sono le piante parassite più diffuse nelle regioni del Mediterraneo e del continente africano interessando colture di rilevanza strategica.
Diverse strategie sono messe in atto al fine di limitarne la diffusione ma la loro eradicazione è praticamente impossibile con le tecniche agronomiche e di controllo chimico conosciute. Pertanto, negli ultimi anni, particolare attenzione è stata rivolta alla lotta integrata mediante lo studio dei metaboliti secondari con potenziale attività erbicida prodotti da microrganismi e da piante.
 Il lavoro di tesi riporta la purificazione e l’isolamento dei metaboliti prodotti da Inula viscosa, pianta spontanea dell’area del Mediterraneo, utilizzabili in strategie di lotta integrata contro piante parassite quali le Orobanche e la Cuscuta. La purificazione dell’estratto organico ha portato all’isolamento del principale metabolita identificato come l’acido-α-costico e all’isolamento di quattro nuovi  metaboliti strutturalmente correlati tra loro e denominati inuloxine A-D. Le strutture delle quattro inuloxine A-D è stata determinata utilizzando tecniche spettroscopiche (IR, UV, 1D, 2D, 1H e 13C NMR, ESI-.MS). Le inuloxine A-D appartengono al gruppo dei sesquiterpeni lattonici contenenti sistemi bi e tri-ciclici, un differente riarrangiamento dello scheletro carbonioso e differenti gruppi funzionali. Inoltre sono stati preparati un derivato dell’inuloxina A ed uno dell’inuloxina C al fine di avere delle informazioni preliminari sulla di correlazione struttura-attività.
Quando saggiate su semi di C. campestris e O. crenata le inuloxine A, C e D inibivano quasi completamente la germinazione dei semi, mentre l’inuloxina B era debolmente attiva. L’acetil derivato dell’inuloxina C inibiva in modo significativo la germinazione dei semi di entrambe le piante parassite, mentre il diazo derivato dell’inuloxina A risultava inattivo. Questi risultati hanno mostrato che la presenza dell’anello 2-furanone è un fattore strutturalmente fondamentale per l’attività fitotossica, mentre un ruolo importante è anche svolto dal gruppo metilenico esociclico al ciclo furanonico.
The path towards an Internet’s SON: Service Oriented Networking
Creators: name: Bifulco, Roberto
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: The work described in this Ph.D. thesis deals with the evolution of the current Internet architecture towards a communication model suited for dealing with services rather then with nodes and processes. The work introduces some practical use cases to describe the current ``as a service`` orientation of many network applications, and the required new degrees of flexibility in the resources management and deployment. Several solutions to this aim are designed, implemented and evaluated when integrated in the legacy network infrastructure. Furthermore, the thesis explores the concepts of network virtualization and software defined networking, both in practical and theoretical aspects, applying them to the concrete design of a networking architecture that enables the split of network identifier and locator concepts. The proposed architecture is a first step towards an implementation of a service oriented architecture on top of the current Internet. At the same time, the thesis provides an example on how network protocols can be used in a new way without changing their dynamics, or using a term familiar to software engineer, how they can be ``overloaded``, to create new functions provided that the network control plane is correctly designed to handle them.
Le linee del tempo: architettura, gnomonica, geometria
Creators: name: Perrucci, Salvatore
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Uniche e preziose opere di natura composita, gli orologi solari si identificano come manufatti nella  cui realizzazione convergono diverse discipline, dalla scienza all'arte, offrendo a chi li osserva differenti livelli di lettura, dall'informazione pratica della misura del tempo all'approfondimento razionale delle metodologie geometriche, oltre all'apprezzamento del loro indiscutibile valore estetico fino a giungere ad una riflessione filosofica.
Il termine Gnomonica deriva dal latino gnōmonica (ars) a sua volta dal greco γνωομονική (τέχνη), gnomōnikē tékhnē, l'arte di costruire orologi solari, quindi gnomon (gnomone), che è l'asta che genera l'ombra. Il termine gnomon gode infatti di una duplice accezione in rapporto alla conoscenza: identifica ciò che da conoscenza, quindi ciò che indica , ma anche colui che possiede conoscenza, che sa valutare ed è quindi giudice .
Uno studio che riscopre questa disciplina antica con l’intento di ricucire e divulgare il suo legame indiscusso con la Geometria e l’ Architettura  attraverso l'ipotesi di restauro di un antico ed originale orologio catottrico rinvenuto nel chiostro di Santa Maria della Pace ad Alzano Lombardo (Bergamo).
CA-SBA-754: Archaeological site record for CA-SBA-754
Creators: name: Kekich, Jessica
Year: 1971
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: CA-SBA-754
valueUri: https://core.tdar.org/browse/site-name/136927/ca-sba-754
subject: Temporary Campsite
valueUri: https://core.tdar.org/browse/site-type/926/temporary-campsite
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: mytilus
valueUri: https://core.tdar.org/browse/material-type/3835/mytilus
subject: Scraper
valueUri: https://core.tdar.org/browse/other-keyword/585/scraper
subject: Core
valueUri: https://core.tdar.org/browse/other-keyword/618/core
subject: Chipping Debitage
valueUri: https://core.tdar.org/browse/other-keyword/30698/chipping-debitage
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview

description: This document is the archaeological site record for CA-SBA-754. The record consists of 1 recordation event.
Knowledge, Behavior and Attitude of Nurses Regarding Prevention of Central Line Associated Blood Stream Infections
Creators: name: Al-Yateem, Iyad Salem Ahmad
Publisher: name: Royal College of Surgeons in Ireland
Year: 2021
Subjects: subject: 111099 Nursing not elsewhere classified
subject: FOS: Health sciences

description: The level of knowledge of nursing staff handling patients with Central Venous Catheters has been reported internationally as one of the factors contributing to the increasing incidence of Central Line Associated Blood Stream Infections (Alkubati et al., 2015; Chen et al., 2015). This study aimed to identify the Level of knowledge, behavior, and attitude of nurses in Adult and Hemodialysis Units in a military hospital in the Kingdom of Saudi Arabia regarding Central Line Associated Blood Stream Infections prevention, and whether these variables differ between those critical and non-critical care units. This research adopted a quantitative descriptive cross-sectional and comparative design. Data collection was performed in July 2018 with a response rate of 81%. Total sampling included 121 participants using a self-administered questionnaire consisted of 20 items of yes-no and liker-type questions developed by a similar previous study. The results showed that participants had an adequate level of knowledge and behavior regarding the evidence-based guidelines of Central Line Associated Blood Stream Infections prevention. The participants’ level of knowledge was significantly associated with their years of experience. The participants had highly positive attitudes regarding the utilization of CLABSI prevention evidence-based guidelines. Participants from critical care unit had higher level of knowledge and behavior regarding the evidence-based guidelines of Central Line Associated Blood Stream Infections prevention, while participants from non-critical care unit had higher positive attitude toward the utility of the guidelines. The results were still showing a room of improvement that could be achieved by regular education and training.
Attitudes of Emergency Nurses to Evidence Based Practice in the Emergency Department of a Multi-Specialty Hospital
Creators: name: Rooney, Ciara
Publisher: name: Royal College of Surgeons in Ireland
Year: 2021
Subjects: subject: 111003 Clinical Nursing: Secondary (Acute Care)
subject: FOS: Health sciences

description: Background: Despite the growing body of evidence produced by and for nurses, moving evidence from research into practice remains challenging. These challenges can be attributed in part, to attitudes of nurses towards evidence based practice. This study examined attitudes to evidence based practice among Emergency Department nurses and factors which influenced these attitudes such as: years of experience in nursing, country of education, practice outside country of education, perception of the culture of the organisation, previous education on evidence based practice, and role in the Emergency Department.Methods: This quantitative, descriptive study was conducted in the Emergency Department of a multi-specialty hospital in the United Arab Emirates. The study sample included 68 emergency nurses. Data was collected using the Evidence Based Practice Attitudes Scale between July and August of 2018. Data analysis was performed using independent t-tests and one way analysis of variance using SPSS from September to October 2018.Results: A response rate of 78% indicated that overall, participants had positive attitudes to evidence based practice. Participants from Europe had significantly more favourable attitudes to evidence based practice than those from Asia and the Middle East.Conclusions: Future research should be aimed at identifying barriers to implementation of EBP. Developing nursing competencies could provide clarity for nurses as to what is expected from them in terms of engagement in EBP and delivery of high quality patient care. The findings could be used to influence future implementation and dissemination efforts in evidence based practice.
Observed CN and HCN intensity ratios exhibit subtle variations in extreme galaxy environments
Creators: name: Ledger, B.
name: Wilson, C. D.
name: Michiyama, T.
name: Iono, D.
name: Aalto, S.
name: Saito, T.
name: Bemis, A.
name: Aladro, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use both new and archival ALMA data of three energy lines each of CN and HCN to explore intensity ratios in dense gas in NGC 3256, NGC 7469, and IRAS 13120-5453. The HCN (3-2)/HCN (1-0) intensity ratio varies in NGC 3256 and NGC 7469, with superlinear trends of 1.53$\pm$0.07 and 1.55$\pm$0.05, respectively. We find an offset to higher HCN (3-2)/HCN (1-0) intensity ratios (~0.8) in IRAS 13120-5453 compared to NGC 3256 (~0.3-0.4) and NGC 7469 (~0.3-0.5). The HCN (4-3)/HCN (3-2) intensity ratio in NGC 7469 has a slope of 1.34$\pm$0.05. We attribute the variation within NGC 3256 to excitation associated with the northern and southern nuclei. In NGC 7469, the variations are localized to the region surrounding the active galactic nucleus. At our resolution (~700 pc), IRAS 13120-5453 shows little variation in the HCN intensity ratios. Individual galaxies show nearly constant CN (2-1)/CN (1-0) intensity ratios. We find an offset to lower CN (2-1)/CN (1-0) intensity ratios (~0.5) in NGC 3256 compared to the other two galaxies (~0.8). For the CN (3-2)/CN (2-1) intensity ratio, NGC 7469 has a superlinear trend of 1.55$\pm$0.04, with the peak localized toward the active galactic nucleus. We find high (~1.7) CN (1-0)/HCN (1-0) intensity ratios in IRAS 13120-5453 and in the northern nucleus of NGC 3256, compared to a more constant ratio (~1.1) in NGC 7469 and non-starbursting regions of NGC 3256.
description: 12 pages, 4 figures, 5 figures in Appendix, resubmitted to MNRAS after small revisions to address the first referee report
Quadriceps muscle activity in female runners with patellofemoral pain syndrome
Creators: name: MacIntyre, Donna Lee
Publisher: name: University of British Columbia
Year: 2010

description: The aim of this study was to determine if there was a difference in the surface EMG patterns of three of the quadriceps muscles (vastus medial is, vastus lateralis and rectus femoris) in female runners diagnosed with patellofemoral pain syndrome (PFPS) compared to the quadriceps activity of female runners free of knee pain and with normal lower extremity alignment. Linear envelope EMGs from vastus medial is, vastus lateralis and rectus femoris, together with a footswitch signal, were digitally recorded as each subject ran on a treadmill at 12 km/h. Each stride period was normalized to 100%, and then the linear envelopes for ten trials from each muscle were ensemble averaged to achieve a mean ensemble for each muscle from each subject. Subsequently, the grand mean ensemble of each muscle for all of the subjects in each group was computed. It was also the objective of this study to determine if there was a difference in the peak concentric and eccentric torques of the quadriceps and the hamstrings between the experimental group and the control group. The subjects were tested on an isokinetic dynamometer (KINCOM) through a range of 90° at an angular velocity of 200°/s. The results showed no statistically significant differences between the groups for the peak EMG amplitudes. In fact when comparing the EMG patterns of activity between the two groups, the grand ensemble average of the experimental group remained within ± one standard deviation of the control group's mean EMG pattern. However, when individual subjects with PFPS were compared to the control group, there were periods in the gait cycle when the EMG amplitude was outside of ± one standard deviation of the control group's mean. When comparing the two groups for the peak concentric and eccentric torques of each muscle group, again the results were not statistically significant. The peak torques were also compared between groups as hamstrings/quadriceps ratios but found to be not significantly different. However, the mean concentric hamstrings/quadriceps ratio of the group with PFPS was found to be 1.02, which is outside of the range of values reported in the literature.
Testing neutrino masses in little Higgs models via discovery of doubly charged Higgs at LHC
Creators: name: Hektor, A.
name: Kadastik, M.
name: Muntel, M.
name: Raidal, M.
name: Rebane, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have investigated the possibility of direct tests of little Higgs models incorporating triplet Higgs neutrino mass mechanism at LHC experiments. We have performed Monte Carlo studies of Drell-Yan pair production of doubly charged Higgs boson Φ^{++} followed by its leptonic decays which branching ratios are fixed from the neutrino oscillation data. We propose appropriate selection rules for the four-lepton signal, including reconstructed taus, which are optimized for the discovery of Φ^{++} with the lowest LHC luminosity. As the Standard Model background can be effectively eliminated, an important aspect of our study is the correct statistical treatment of the LHC discovery potential. Adding detection efficiencies and measurement errors to the Monte Carlo analyses, Φ^{++} can be discovered up to the mass 250 GeV in the first year of LHC, and 700 GeV mass is reachable for the integrated luminosity L=30 fb^{-1}.
description: 16 pages, 3 figures; reference added to Section 6, numerical values of statistical data added to Section 5, typos corrected
Semiparametric Proximal Causal Inference
Creators: name: Cui, Yifan
name: Pu, Hongming
name: Shi, Xu
name: Miao, Wang
name: Tchetgen, Eric Tchetgen
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: Skepticism about the assumption of no unmeasured confounding, also known as exchangeability, is often warranted in making causal inferences from observational data; because exchangeability hinges on an investigator’s ability to accurately measure covariates that capture all potential sources of confounding. In practice, the most one can hope for is that covariate measurements are at best proxies of the true underlying confounding mechanism operating in a given observational study. In this article, we consider the framework of proximal causal inference introduced by Miao, Geng, and Tchetgen Tchetgen and Tchetgen Tchetgen et al. which while explicitly acknowledging covariate measurements as imperfect proxies of confounding mechanisms, offers an opportunity to learn about causal effects in settings where exchangeability on the basis of measured covariates fails. We make a number of contributions to proximal inference including (i) an alternative set of conditions for nonparametric proximal identification of the average treatment effect; (ii) general semiparametric theory for proximal estimation of the average treatment effect including efficiency bounds for key semiparametric models of interest; (iii) a characterization of proximal doubly robust and locally efficient estimators of the average treatment effect. Moreover, we provide analogous identification and efficiency results for the average treatment effect on the treated. Our approach is illustrated via simulation studies and a data application on evaluating the effectiveness of right heart catheterization in the intensive care unit of critically ill patients. Supplementary materials for this article are available online.
Semiparametric proximal causal inference
Creators: name: Cui, Yifan
name: Pu, Hongming
name: Shi, Xu
name: Miao, Wang
name: Tchetgen, Eric Tchetgen
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Skepticism about the assumption of no unmeasured confounding, also known as exchangeability, is often warranted in making causal inferences from observational data; because exchangeability hinges on an investigator’s ability to accurately measure covariates that capture all potential sources of confounding. In practice, the most one can hope for is that covariate measurements are at best proxies of the true underlying confounding mechanism operating in a given observational study. In this paper, we consider the framework of proximal causal inference introduced by Miao et al. (2018); Tchetgen Tchetgen et al. (2020), which while explicitly acknowledging covariate measurements as imperfect proxies of confounding mechanisms, offers an opportunity to learn about causal effects in settings where exchangeability on the basis of measured covariates fails. We make a number of contributions to proximal inference including (i) an alternative set of conditions for nonparametric proximal identification of the average treatment effect; (ii) general semiparametric theory for proximal estimation of the average treatment effect including efficiency bounds for key semiparametric models of interest; (iii) a characterization of proximal doubly robust and locally efficient estimators of the average treatment effect. Moreover, we provide analogous identification and efficiency results for the average treatment effect on the treated. Our approach is illustrated via simulation studies and a data application on evaluating the effectiveness of right heart catheterization in the intensive care unit of critically ill patients.
Exploring perioperative handoff communication amongst an expatriate healthcare team
Creators: name: Mantley, Stephanie
Publisher: name: Royal College of Surgeons in Ireland
Year: 2021
Subjects: subject: 111099 Nursing not elsewhere classified
subject: FOS: Health sciences

description: Aim: To explore participant experiences and perceptions of perioperative handoff communication amongst an expatriate healthcare team in a tertiary hospital in the United Arab Emirates (UAE).Background: Expatriates comprise ninety percent of the UAE’s healthcare workforce. Subsequent workforce diversity results in varied languages, culture, education, and experience, posing implications for communication. The perioperative setting is a time challenged, efficiency driven environment where handoff communication is subject to various challenges, and poor communication is linked to adverse patient events. Research into perioperative handoff communication amongst diverse expatriates was undertaken to identify challenges and inform practice.Research Method: A descriptive phenomenological approach using semi-structured individual interviews with culturally and professionally diverse perioperative staff. Colaizzi’s Seven Step Framework for Data Analysis enabled identification of three emergent themes.Findings: The primary theme highlighted challenges with intercultural communication. Lack of structure, varied experience, communication behaviours, practice expectations, and hierarchy were also identified as influencing handoff communication.Implications: Handoff communication is impeded by a lack of standardization and structure, as well as differing cultural and professional practice expectations.Conclusion: Culture and language differences amongst the expatriate team had a noteworthy impact on handoff communication and team function. Varied cultural values, professional experience, and influence of hierarchy need to be understood to overcome communication difficulties and support team integration.Recommendations:• Organizational orientation to working in a culturally diverse healthcare setting• Cultural competence program to mitigate ethnocentrism and cultural division• Prioritize appropriate staffing mix and position allocation to ensure safety• Implementation of standardized perioperative handoff tools and terminology
Surface-response functions obtained from equilibrium electron-density profiles
Creators: name: Mortensen, N. Asger
name: Gonçalves, P. A. D.
name: Shuklin, Fedor A.
name: Cox, Joel D.
name: Tserkezis, Christos
name: Ichikawa, Masakazu
name: Wolff, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Surface-response functions are one of the most promising routes for bridging the gap between fully quantum-mechanical calculations and phenomenological models in quantum nanoplasmonics. Within all the currently available recipes for obtaining such response functions, \emph{ab initio} calculations remain one of the most predominant, wherein the surface-response function are retrieved via the metal's non-equilibrium response to an external perturbation. Here, we present a complementary approach where one of the most appealing surface-response functions, namely the Feibelman $d$-parameters, yield a finite contribution even in the case where they are calculated directly from the equilibrium properties described under the local-response approximation (LRA), but with a spatially varying equilibrium electron density. Using model calculations that mimic both spill-in and spill-out of the equilibrium electron density, we show that the obtained $d$-parameters are in qualitative agreement with more elaborate, but also more computationally demanding, \emph{ab initio} methods. The analytical work presented here illustrates how microscopic surface-response functions can emerge out of entirely local electrodynamic considerations.
description: Supplementary material is available upon request to authors
Modeling the EdNet Dataset with Logistic Regression
Creators: name: Pavlik, Philip I.
name: Eglington, Luke G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Many of these challenges are won by neural network models created by full-time artificial intelligence scientists. Due to this origin, they have a black-box character that makes their use and application less clear to learning scientists. We describe our experience with competition from the perspective of educational data mining, a field founded in the learning sciences and connected with roots in psychology and statistics. We describe our efforts from the perspectives of learning scientists and the challenges to our methods, some real and some imagined. We also discuss some basic results in the Kaggle system and our thoughts on how those results may have been improved. Finally, we describe how learner model predictions are used to make pedagogical decisions for students. Their practical use entails a) model predictions and b) a decision rule (based on the predictions). We point out how increased model accuracy can be of limited practical utility, especially when paired with simple decision rules and argue instead for the need to further investigate optimal decision rules.
description: 5 pages, AAAI Workshop on AI in Education (Imagining Post-COVID Education with AI)
Dynamical phase transition in the activity-biased fully-connected random field Ising model: connection with glass-forming systems
Creators: name: Guioth, Jules
name: Jack, Robert L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analyse biased ensembles of trajectories for the random-field Ising model on a fully-connected lattice, which is described exactly by mean-field theory. By coupling the activity of the system to a dynamical biasing field, we find a range of dynamical phase transitions, including spontaneous symmetry breaking into ordered states. For weak bias, the phase behaviour is controlled by extrema of the free energy, which may be local minima or saddle points. For large bias, the system tends to states of extremal activity, which may differ strongly from free energy minima. We discuss connections of these results to random first-order transition theory of glasses, which motivates an extension of the analysis to random-field Ising models where the dynamical activity is not symmetric under magnetisation reversal.
description: 26 pages, 10 figures
Change and prediction of income and fertility rates across countries
Creators: name: Inyong Shin
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer

description: This paper analyzes and predicts the changes of relationship between income and fertility rate of cross-countries using a bivariate mixture model and a latent change score model. This paper has shown that there is a negative relationship between income and fertility rate, which is presented in the form of inverted S-shaped curve which shows the three regimes of demographic transition. Some developed countries have completed their demographic transition in fertility rate, and in developing countries, the demographic transition in fertility rate is still in progress. This paper has also shown that the number of peaks of income distribution has increased in recent years comparing to 1960s and the number won’t decrease in the future. However, the number of peaks of fertility rate distribution hasn’t changed from 1960s to recent years but due to the shift, finally, the distribution will change to a uni-modal distribution in the future. The income will be applied to the conditional convergence and the fertility rate will be applied to the absolute convergence. The fertility gap among cross-countries will disappear, but the income gap won’t. Although the population conditions in developing countries will improve, income inequality in cross-country may not be improved after all.
CA-SBA-745: Archaeological site record for CA-SBA-745
Creators: name: Kekich, Jessica
Year: 1971
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Monterey Chert
valueUri: https://core.tdar.org/browse/material-type/334/monterey-chert
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: chipping detritus
valueUri: https://core.tdar.org/browse/other-keyword/172373/chipping-detritus
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview

description: This document is the archaeological site record for CA-SBA-745. The record consists of 1 recordation event.
Valley splittings in Si/SiGe quantum dots with a germanium spike in the silicon well
Creators: name: McJunkin, Thomas
name: MacQuarrie, E. R.
name: Tom, Leah
name: Neyens, S. F.
name: Dodson, J. P.
name: Thorgrimsson, Brandur
name: Corrigan, J.
name: Ercan, H. Ekmel
name: Savage, D. E.
name: Lagally, M. G.
name: Joynt, Robert
name: Coppersmith, S. N.
name: Friesen, Mark
name: Eriksson, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Silicon-germanium heterostructures have successfully hosted quantum dot qubits, but the intrinsic near-degeneracy of the two lowest valley states poses an obstacle to high fidelity quantum computing. We present a modification to the Si/SiGe heterostructure by the inclusion of a spike in germanium concentration within the quantum well in order to increase the valley splitting. The heterostructure is grown by chemical vapor deposition and magnetospectroscopy is performed on gate-defined quantum dots to measure the excited state spectrum. We demonstrate a large and widely tunable valley splitting as a function of applied vertical electric field and lateral dot confinement. We further investigate the role of the germanium spike by means of tight-binding simulations in single-electron dots and show a robust doubling of the valley splitting when the spike is present, as compared to a standard (spike-free) heterostructure. This doubling effect is nearly independent of the electric field, germanium content of the spike, and spike location. This experimental evidence of a stable, tunable quantum dot, despite a drastic change to the heterostructure, provides a foundation for future heterostructure modifications.
description: 11 pages, 7 figures