cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MHV Graviton Scattering Amplitudes and Current Algebra on the Celestial Sphere
Creators: name: Banerjee, Shamik
name: Ghosh, Sudip
name: Paul, Partha
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Cachazo-Strominger subleading soft graviton theorem for a positive helicity soft graviton is equivalent to the Ward identities for $\overline{SL(2,\mathbb C)}$ currents. This naturally gives rise to a $\overline{SL(2,\mathbb C)}$ current algebra living on the celestial sphere. The generators of the $\overline{SL(2,\mathbb C)}$ current algebra and the supertranslations, coming from a positive helicity leading soft graviton, form a closed algebra. We find that the OPE of two graviton primaries in the Celestial CFT, extracted from MHV amplitudes, is completely determined in terms of this algebra. To be more precise, 1) The subleading terms in the OPE are determined in terms of the leading OPE coefficient if we demand that both sides of the OPE transform in the same way under this local symmetry algebra. 2) Positive helicity gravitons have null states under this local algebra whose decoupling leads to differential equations for MHV amplitudes. An $n$ point MHV amplitude satisfies two systems of $(n-2)$ linear first order PDEs corresponding to $(n-2)$ positive helicity gravitons. We have checked, using Hodges' formula, that one system of differential equations is satisfied by any MHV amplitude, whereas the other system has been checked up to six graviton MHV amplitude. 3) One can determine the leading OPE coefficients from these differential equations. This points to the existence of an autonomous sector of the Celestial CFT which holographically computes the MHV graviton scattering amplitudes and is completely defined by this local symmetry algebra. The MHV-sector of the Celestial CFT is like a minimal model of $2$-D CFT.
description: Final JHEP Version
Improving usability of pedagogical computer emulation interfaces
Creators: name: Williams, Stephen D.
Publisher: name: American University
Year: 2023

description: Computer emulations, simulating real or imagined computer systems, are a valuable tool to quickly gain understanding of computer architecture and software. Existing computer emulation systems offer useful but limited visualization and interaction. This paper addresses improving usability of pedagogical computer emulator interfaces with the application of published design principles informed by research into visuospatial ability. The results include a survey of promising techniques addressing similar problems and suggestions for application. Along with supporting work extending a publicly available Java-based PC emulator to enable use of the popular Processing visualization development environment, this provides a well-developed design and implementation framework for future improvements by interested parties.
Elliptic U(2) quantum group and elliptic hypergeometric series
Creators: name: Koelink, Erik
name: van Norden, Yvette
name: Rosengren, Hjalmar
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We investigate an elliptic quantum group introduced by Felder and Varchenko, which is constructed from the $R$-matrix of the Andrews-Baxter-Forrester model, containing both spectral and dynamical parameter. We explicitly compute the matrix elements of certain corepresentations and obtain orthogonality relations for these elements. Using dynamical representations these orthogonality relations give discrete bi-orthogonality relations for terminating very-well-poised balanced elliptic hypergeometric series, previously obtained by Frenkel and Turaev and by Spiridonov and Zhedanov in different contexts.
description: 20 pages
Context-Dependent Acoustic Modeling without Explicit Phone Clustering
Creators: name: Raissi, Tina
name: Beck, Eugen
name: Schlüter, Ralf
name: Ney, Hermann
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.7
subject: 68T10

description: Phoneme-based acoustic modeling of large vocabulary automatic speech recognition takes advantage of phoneme context. The large number of context-dependent (CD) phonemes and their highly varying statistics require tying or smoothing to enable robust training. Usually, classification and regression trees are used for phonetic clustering, which is standard in hidden Markov model (HMM)-based systems. However, this solution introduces a secondary training objective and does not allow for end-to-end training. In this work, we address a direct phonetic context modeling for the hybrid deep neural network (DNN)/HMM, that does not build on any phone clustering algorithm for the determination of the HMM state inventory. By performing different decompositions of the joint probability of the center phoneme state and its left and right contexts, we obtain a factorized network consisting of different components, trained jointly. Moreover, the representation of the phonetic context for the network relies on phoneme embeddings. The recognition accuracy of our proposed models on the Switchboard task is comparable and outperforms slightly the hybrid model using the standard state-tying decision trees.
description: Proceedings of Interspeech 2020
title: The identification and analysis of mutation in the Cockayne Syndrome B gene
Creators: name: Mallery, Donna Louise
Publisher: name: The Open University
Year: 1999

description: Cockayne Syndrome (CS) is a rare autosomal recessive disorder characterised by neurodegeneration, dwarfism and at least three of the following; hearing loss, dental caries, pigmentary retinopathy, characteristic facial appearance and photosensitivity. Cells from CS patients fail to recover RNA synthesis after irradiation and exhibit a loss of transcription-coupled repair, with overall genome repair being unaffected. There are two genetic complementation groups of CS alone, A and B, with the majority of patients belonging to group B. The genes defective in each of the complementation groups have been cloned, the CSA gene in 1995 and CSB in 1990. For the purposes of this study the CSB gene was sequenced in patients from complementation group B, in an attempt to identify the causative mutations. The analysis of thirteen patients from different backgrounds has revealed a wide variety of mutations in the CSB gene. A considerable number of the mutations found in CS-B patients resulted in severely truncated products. Several patients possessed two alleles affected in this way and it is unlikely that any functional protein is produced, confirming that CSB is a nonessential gene. The mutations identified did not reveal any regions within the gene that could be termed as hotspots. There was, however a tendency for the mutations to be located towards the 3' two thirds of the gene, indicated by the clustering of the mutations in this region. The severity of the mutation does not however correlate with the site or type of mutation. Clustering of the mutations towards the 3' end and the high levels of conservation in the central part of the gene prompted a study into the functional significance of the N- and Cterminal ends of the protein. Also, the presence of a highly acidic region of amino acids and a stretch of glycine residues led to a study of the effects of removing and replacing these regions. Removal of the glycine domain results in non-functional protein with respect to cell survival after UV irradiation, whereas the removal of seven glutamic acid residues from the acidic rich region, does not appear to have a particularly dramatic effect. Deletion of the C-terminal 25 amino acids of CSB totally destroys the repair ability of the gene. In contrast, cDNAs deleted at the N-terminus are able to at least, partially retain repair activity.
Micaria pulicaria
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Micaria
Micaria pulicaria

description: Micaria pulicaria (Sundevall, 1831)
NEW DATA. — Valdieri: southern slope of Monte Bourel, Vallone della Meris, Sant’Anna di Valdieri, Alpine prairies with rocky debris, 1500-2300 m, 1-31.VIII.2011 (pitfall traps), 1♂; Vernante: Palanfrè, Pascariund, Alpine pasture, 1600 m, 30.VII-30.VIII.2010 (pitfall traps), 1♂.
 LITERATURE. — Paschetta et al. (2013).
CHOROTYPE. — OLA.
MACROHABITAT. — Alpine pastures, Alpine prairies.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 96, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
A NOVEL METHOD FOR THE CONTROL OF POD DISEASES OF COCOA
Creators: name: Sreenivasan, T.N.
name: Sreenivasan, T.N.
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Pod diseases of cocoa are widespread in cocoa-growing countries and are responsible for substantial losses in income. Black pod, Moniliophthora pod rot, Witches' broom and Watery pod rot are the major diseases of cocoa pods. The conventional methods of fungicide application by spraying an aqueous suspension using diverse equipment so far yielded only limited control. The drawback of these methods seem to be the inability of the system to release adequate quantities of the chemical during the prolonged rainy spells which are frequent in the tropics. The need for the development of an alternative method for the control of pod diseases was recognized. A new method is being developed at the Cocoa Research Unit, Trinidad. Copper fungicides were placed in a collar-like device and attached to the top of the main trunk or branches of cocoa trees. The water flow from rains passes through the collar permitting a slow release of the fungicide during rainy periods. This guarantees the availability of fungicide in sufficient concentration to prevent pod infection during the prolonged rainy spells. Preliminary studies on Black Pod disease have shown very significant reduction in pod losses when collars with log or 5g a.i. were used.
Determinant of Poverty in Ethiopia
Creators: name: Teshome Kebede Deressa
name: Sharma, M.K.
name: Teshome Kebede Deressa
name: Sharma, M.K.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Food Security and Poverty
subject: Poverty
subject: Consumption
subject: Ethiopia

description: Poverty has turned out to be a great global social and economic problem. In Ethiopia, it is multifaceted and deep rooted. This study attempts to analyze the impact of socioeconomic and demographic characteristics of households on poverty in Ethiopia, using the latest Household Income, Consumption and Expenditure Survey (HICES) 2010-11. The study employs a logistic regression model to identify determinants of wellbeing of the household by considering per capita consumption as a dependent variable. Different households are classified as either poor or non-poor on the basis of absolute per capita consumption of Birr 3781. Results show owner of agricultural land, head (self-employed or employed in formal sector) are more likely to exit from poverty line. The results also reveal that female headed households, large family size and high dependency ratio are adversely affected.
Improving usability of pedagogical computer emulation interfaces
Creators: name: Williams, Stephen D.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 46
subject: Information and computing sciences

description: Computer emulations, simulating real or imagined computer systems, are a valuable tool to quickly gain understanding of computer architecture and software. Existing computer emulation systems offer useful but limited visualization and interaction. This paper addresses improving usability of pedagogical computer emulator interfaces with the application of published design principles informed by research into visuospatial ability. The results include a survey of promising techniques addressing similar problems and suggestions for application. Along with supporting work extending a publicly available Java-based PC emulator to enable use of the popular Processing visualization development environment, this provides a well-developed design and implementation framework for future improvements by interested parties.
title: Characterisation of experimental Q fever infection and the detection of Coxiella burnetii antigens in urine
Creators: name: Lever, Mark Stephen
Publisher: name: The Open University
Year: 1999

description: Coxiella burnetii, the aetiological agent of Q fever, causes acute, chronic or asymptomatic disease in humans. Routine clinical diagnosis of acute and chronic Q fever primarily relies on serodiagnosis. Isolation of the organism is rarely attempted, as C. burnetii is known to be amongst the most infectious of bacteria.

This thesis aims to define and characterise a relevant experimental model of Q fever and establish whether C. burnetii-specific antigens appear in the urine of experimental animals. It is further intended to characterise any antigens excreted and assess urinary antigen detection as a method for the laboratory diagnosis of Q fever.

Experimental C. burnetii infection was established in the guinea pig using Lane strain (a previously uncharacterised British isolate from heart tissue of a patient suffering from Q fever endocarditis). The aerosol route of delivery resulted in a more severe disease compared to delivery by the intraperitoneal route and C. burnetii organisms were shown to persist in heart tissues for at least thirteen weeks following aerosol infection. A capture ELISA assay was developed with a detection limit of 80 ng antigen ml-1 (equating to approximately 800 organisms ml-1). C. burnetii-specific antigens appeared in the urine of animals, infected by aerosol with approximately 1000 organisms and 1-10 organisms, at 1 and 10 days post-infection, respectively. During subsequent characterisation of the urinary antigens in severely diseased guinea pigs, viable C. burnetii organisms were detected and a C. burnetii-specific immunoreactive protein with an approximate molecular weight of 62 kDa was demonstrated. Evidence also suggested that LPS was present in the urine.

The appearance of antigen in the urine was used as a marker of infection to assess the efficacy of doxycycline and ciprofloxacin in the treatment of experimental Q fever.. Preliminary studies supported other data (febrile response, serology and PCR) which suggested that doxycycline was more effective than ciprofloxacin in the treatment of acute experimental Q fever.
Signal processing and statistical methods in analysis of text and DNA
Creators: name: Berryman, Matthew J.
name: Allison, Andrew
name: Carpena, Pedro
name: Abbott, Derek
Publisher: name: arXiv
Year: 2004
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: A number of signal processing and statistical methods can be used in analyzing either pieces of text or DNA sequences. These techniques can be used in a number of ways, such as determining authorship of documents, finding genes in DNA, and determining phylogenetic and linguistic trees. Signal processing methods such as spectrograms provide useful new tools in the area of genomic information science. In particular, fractal analysis of DNA ``signals'' has provided a new way of classifying organisms.
description: 10 pages, 5 figures
Surface exposure dating with cosmogenic nuclides
Creators: name: Ivy-Ochs, Susan
name: Kober, Florian
Publisher: name: Geozon Science Media
Year: 2008

description: Im letzten Jahrzehnt hat sich die Methode der Oberflächendatierung mittels kosmogener Nuklide zu einer leistungsfähigen Methode in der Quartärchronologie und quantitativen Landschaftsanalyse entwickelt. Kosmogene Nuklide werden durch kosmische Strahlung in Fest- und Lockergestein gebildet. Die Konzentrationen der kosmogenen Nuklide kann mittels Massenspektrometrie ermittelt werden. Dies ermöglicht - je nach Verwitterungssrate - die Datierung von Landschaftselementen und Landschaftsformen mit Altern zwischen einigen 100 Jahren bis über 10 Millionen Jahren. Neben einem Abriss der historischen Entwicklung und Theorie der Oberflächendatierung mittels kosmogener Nuklide enthält dieser Artikel eine ausführliche Übersicht der zahlreichen Anwendungsgebiete dieser Methode. Probenahmestrategien und die Eigenheiten der einzelnen Nuklide werden im Detail besprochen. Die Vielzahl der mit dieser Methode in den verschiedensten Mineralien bestimmbaren Nuklide (Radionuklide 10Be, 14C, 26Al und 36Cl und Edelgase 3He und 21Ne) erlaubt die Beprobung und Analyse verschiedenster Lithologien. Der erreichte hohe Entwicklungsstand der Methode erlaubt es den Fokus auf die eigentlichen geomorphologischen Fragestellungen zu legen. Die Sensitivität der kosmogenen Oberflächendatierungsmethode muss trotzdem sorgfältig im Rahmen ausführlicher Feldstudien erfolgen, wie zum Beispiel durch die Analyse von lokalen und regionalen Terrassen- oder Moränenstratigraphien oder durch den Vergleich mit anderen Datierungsmethoden.
description: research
Micaria rossica Thorell 1875
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Micaria
Micaria rossica

description: Micaria rossica Thorell, 1875
NEW DATA. — Valdieri: nearby Rifugio Livio Bianco, peatbog, 1900 m, 27.VI.2011, 1♂; Pian del Valasco, Alpine pasture with rocks, 1764 m, 11-12.VII.2009 (pitfall traps), 1♀.
 LITERATURE. — Calloni (1889); Lambiase et al. (2007); Paschetta et al. (2013).
CHOROTYPE. — OLA.
MACROHABITAT. — Alpine pastures, Alpine prairies, wetlands.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 96, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
EXTENDING THE TOMATO SEASON IN PUERTO RICO: PROBLEMS OF SUMMER PRODUCTION
Creators: name: Wessel-Beaver, L.
name: Fornaris, G.
name: Armstrong, A.
name: Caraballo, E.
name: Velazquez, L.
name: Wessel-Beaver, L.
name: Fornaris, G.
name: Armstrong, A.
name: Caraballo, E.
name: Velazquez, L.
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Commercial varieties and breeding lines of tomato were evaluated over three planting dates (April, May, June) in 1988 and 1989 at Juana Diaz, Puerto Rico in order to study the effects of planting date, variety, and planting date by variety interaction of summer tomato production. In addition, the 1989 plantings included sprayed and nonsprayed plots at every planting date to evaluate the importance of insect pests particularly pinworm. While average yield over all varieties decreased markedly with later planting dates, heat tolerant varieties 'Heatwave' and 'Capitan' maintained excellent yields (up to 70,000 kg/ha) in the April and May planting dates and good yields (45,000 kg/ha) in the June planting. Tomato pinworm populations and damage were high at the beginning of the summer, decreased and then increased again. Use of a heat tolerant variety is essential for successful summer tomato production.
Music Boundary Detection using Convolutional Neural Networks: A comparative analysis of combined input features
Creators: name: Hernandez-Olivan, Carlos
name: Beltran, Jose R.
name: Diaz-Guerra, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The analysis of the structure of musical pieces is a task that remains a challenge for Artificial Intelligence, especially in the field of Deep Learning. It requires prior identification of structural boundaries of the music pieces. This structural boundary analysis has recently been studied with unsupervised methods and \textit{end-to-end} techniques such as Convolutional Neural Networks (CNN) using Mel-Scaled Log-magnitude Spectograms features (MLS), Self-Similarity Matrices (SSM) or Self-Similarity Lag Matrices (SSLM) as inputs and trained with human annotations. Several studies have been published divided into unsupervised and \textit{end-to-end} methods in which pre-processing is done in different ways, using different distance metrics and audio characteristics, so a generalized pre-processing method to compute model inputs is missing. The objective of this work is to establish a general method of pre-processing these inputs by comparing the inputs calculated from different pooling strategies, distance metrics and audio characteristics, also taking into account the computing time to obtain them. We also establish the most effective combination of inputs to be delivered to the CNN in order to establish the most efficient way to extract the limits of the structure of the music pieces. With an adequate combination of input matrices and pooling strategies we obtain a measurement accuracy $F_1$ of 0.411 that outperforms the current one obtained under the same conditions.
EVALUATION OF CARIBBEAN MAIZE ACCESSIONS IN PUERTO RICO
Creators: name: Pollak, L.M.
name: Pollak, L.M.
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The maize germplasm collection of Caribbean origin from the CIMMYT (Mexico) germplasm bank was evaluated in two stages for yield and agronomic traits in Puerto Rico. This evaluation was part of the Latin American Maize Project (LAMP), a five-stage collaboration of 12 countries in the Western Hemisphere to evaluate their native maize germplasm. The 562 accessions included in the first stage represented seven races and mixtures of these races commonly found in the Caribbean. The top 20% based on yield were re-evaluated in two locations in Puerto Rico. Yields of the top 20% ranged from 3937 to 7773 kg/ha, and 18 accessions had yield exceeding the check, a local improved variety. Accessions with good ear quality and yield were identified for use in tropical breeding programs.
Invisible migrants: A micro-ethnographic account of bodily exhaustion amongst migrant manual labourers working the graveyard shift at New Spitalfields Market in London
Creators: name: MacQuarie, Julius-Cezar
Publisher: name: figshare
Year: 2020
Subjects: subject: 160508 Health Policy
subject: FOS: Political science
subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: Anthropology
subject: FOS: Sociology
subject: 160199 Anthropology not elsewhere classified
subject: 160810 Urban Sociology and Community Studies
subject: Sociology

description: This article reports data collected during an ethnographic research project conducted in the New Spital­fields wholesale night market in London. It foregrounds and analyses the portraits of two protagonists and triangulates them with data collected in the wider project. This micro analysis reveals that low-skilled workers (loaders, drivers, cleaners, servers) of the night market engage in physical labour tasks to main­tain a 24/7 city’s economy appetite round-the-clock. The night workers’ somatic experiences, rhythmic bodily labour that constitutes the workers’ bodily capital, are discussed on the backdrop of challenges that they face while working the “graveyard” shift. The paper relays the workers’ individual characteristics, such as the physical and mental abilities to endure and embody the duress of night-shift work. This paper proposes that bodily exhaustion, alienation, and sleep deprivation are amongst the factors causing pre­carious migrant night workers to become bioautomatons who are awake and working around the clock.
Quantum signatures from Horava-Lifshitz cosmography
Creators: name: Escamilla-Rivera, Celia
name: Quevedo, Hernando
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we propose an alternative cosmography by considering Horava-Lifshitz gravity as a model of quantum gravity to search for quantum effects at the cosmological level. For our analyses we consider current late universe surveys and a Gravitational Waves forecast from Einstein Telescope. We found naturally a non-flat scenario with $Ω_k =-0.021^{+0.023}_{-0.029}$ with $H_0 = 71.904^{+1.406}_{-1.347}$, without showing the standard reported $3.4$-$σ$ inconsistency. Furthermore, we obtained a specific value for the Ho\v rava parameter $ω\approx -3.8\times 10^{-14}$, which can be interpreted as a measure of a quantum effect and could be used to further test this quantum gravity model. We conclude that classically, according to the $Λ$CDM model, our universe seems to be spatially flat, but in fact, it is curved from a quantum point of view.
description: 15 pages, 2 figures, 3 cables. Version accepted in CQG
title: Investigating motivations and barriers to working with older people among psychologists in clinical training in the UK
Creators: name: Lee, Kristina
Publisher: name: The Open University
Year: 1999

description: Background and Aims: The population aged over 65 in the UK is increasing, however this population is traditionally underserved by clinical psychologists. Part of the reason for this underservice may relate to psychologists' reluctance to work with this group. The literature suggests a number of issues which may account for this reluctance, e. g. professional ageism, anxiety about ageing, death and dependency. This research aims to explore the relevance of these issues among clinical psychology trainees, as well as exploring their attitudes towards psychotherapy with older clients and their thoughts about how recruitment could be improved Design and Participants: A cross sectional postal design was used. Questionnaires were sent to trainees at 25 of the Clinical Psychology Training courses in the UK. Three hundred and seventy-one trainees returned questionnaires. Measures: A questionnaire was designed by the author which included a number of published measures. Results: The trainees reported that they were less interested in working within the older adult specialty than within the adult or child specialties, although older adult services were more popular than learning disability services. The trainees' interest in working with older people could be predicted by their interest in this area prior to training; by aspects of their ageing anxiety and by their experience of working with older people during training. The trainees' age; death anxiety and attitude to older people did not predict their interest in this area. Trainees further discussed how they thought approaches should be modified with older people; why they thought recruitment to this area may be problematic and how recruitment could be improved. Discussion and Implications: The discussion considers provisional explanations for the findings. The clinical implications are examined particularly in terms of recruitment to the older adult specialty. The limitations with this study are explored and ways forward suggested
Evaluation of ultra-wide band technology for social distancing awareness in an office environment towards reducing spread of COVID-19
Creators: name: Mulay, Ninad
Publisher: name: No Publisher Supplied
Year: 2021

description: The thesis aims at establishing a proof of concept for the implementation of Ultra-wideband (UWB) technology for social distancing awareness among people in an office environment. As people get vaccinated and offices open, it is imperative to have an awareness mechanism for employee safety. UWB presents itself as a monumental upgrade over other short-range technologies in terms of accuracy and scalability. This thesis aims to highlight UWB-based devices as an effective, accurate solution for social distancing needs, particularly in high-density areas (offices, banks, etc.), required by the COVID-19 pandemic. The research used a test scenario of 2 users in an office room, where they were instructed to maintain 6 feet distance (CDC Guideline) for a working day. The results showed that the average daily contact time was 29 minutes given social awareness, self-correcting behavior, and accurate measurements from UWB devices. For enhancing the test scenario, a feedback mechanism was deployed in the office room which alerted the users of their time in contact and the behavior of the users was observed. The results showed an improvement, with the average daily contact time being 13 minutes between the users. The contact time exceeded no longer than 15 minutes (CDC Guideline) collectively between the users for a working day highlighting the intuitive sound-based feedback mechanism and the accurate UWB measurements. Finally, the conducted research shows that as UWB becomes ubiquitous, social awareness can be scaled for not only employees, but visitors as well using mobile applications. As new variants keep popping up in the world, it is imperative to have a scalable, yet flexible system and the thesis showcases such a system.
Zelotes electus
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Zelotes
Zelotes electus

description: Zelotes electus (C. L. Koch, 1839)
NEW DATA. — Valdieri: southern slope of Monte Bourel, Vallone della Meris, Sant’Anna di Valdieri, Alpine prairies with rocky debris, 1500-2300 m, 1-31.VIII.2011, 1♂; Vernante: Palanfrè, Gias della Luia, Alpine pasture, 1600 m, 3.VII.2010, 1♀, leg. B. Rizzioli.
CHOROTYPE. — SIE.
MACROHABITAT. — Alpine pastures, Alpine prairies.
NOTES. — New record for the study area.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 97, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
Integrated Sachs-Wolfe effect in Cross-Correlation: The Observer's Manual
Creators: name: Afshordi, Niayesh
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Integrated Sachs-Wolfe (ISW) effect is a direct signature of the presence of dark energy in the universe, in the absence of spatial curvature. A powerful method for observing the ISW effect is through cross-correlation of the Cosmic Microwave Background (CMB) with a tracer of the matter in the low redshift universe. In this paper, we describe the dependence of the obtained cross-correlation signal on the geometry and other properties of a survey of the low redshift universe. We show that an all-sky survey with about 10 million galaxies, almost uniformly distributed within 0
description: 9 pages, 9 Figures, Extended discussion of different observational systematics, Accepted for publication in PRD
Thermolumineszens-Datierungen an Lössen des Tönchesberges aus der Osteifel
Creators: name: Frechen, Manfred
Publisher: name: Geozon Science Media
Year: 1994

description: Anhand von 61 Proben wurden die Grenzen der Anwendbarkeit der Thermolumineszenz(TL)-Datierungsmethode für Lößdeckschichten des Tönchesberg-Schlackenkegels aus der Osteifel untersucht. Zur Bestimmung der akkumulierten Dosis kamen sowohl die Regenerierungs-Methode als auch die Additive Methode und für einige wenige Proben die R-Gamma-Methode zur Anwendung. Die geologisch-stratigraphische Verläßlichkeit von TL-Altern für die letzten 200 000 Jahre wurde anhand von 126 voneinander unabhängigen TL-Daten untersucht. Die TL-Datierungen an Lössen des Profils Tönchesberg sind bis zu einem Alter von etwa 90 ka in guter Übereinstimmung mit den geologisch erwarteten Altern. (40)Ar (39)Ar-Datierungen von Tephren mit einem physikalischen Alter von 238±20 ka und 243±65 ka unterstützen die Vorstellung, daß signifikante TL-Altersunterbestimmungen für die Proben unterhalb des letztinterglazialen Bodens vorliegen. Die lößstratigraphische Abfolge und malakozoologisehe Untersuchungen implizieren jedoch, dass die (40)Ar/ (39)Ar-Datierungen altersüberbestimmt sind. Die mit der Additiven Methode kalkulierten TL-Alter für vorletztglaziale Lösse sind größer als bei Verwendung der Regenerierungs-Methode. Jedoch nehmen die TL-Alter weder mit der einen noch mit der anderen Methode außerhalb der Mutungsintervalle zum Liegenden hin zu. Neben physikalischen Gründen kann eine rasche Lößakkumulation während der jüngeren Saale-Kaltzeit als Grund für die nicht erkennbare Zunahme der TL-Alter angenommen werden. TL-Daten von mehr als 100 000 Jahren werden im allgemeinen durch eine wissenschaftlich fragwürdige Auswahl von Meßdaten sowie Anpassung von Meßbedingungen und Meßparametern ermittelt, um geologischen Altersabschätzungen oder unabhängigen Datierungen zu genügen. Die Unabhängigkeit als Grundprinzip einer Datierungsmethode ist mithin für diesen Alteisbereich bei der TL nicht gegeben.
description: research
Collaborative Learning in the Jungle (Decentralized, Byzantine, Heterogeneous, Asynchronous and Nonconvex Learning)
Creators: name: El-Mhamdi, El-Mahdi
name: Farhadkhani, Sadegh
name: Guerraoui, Rachid
name: Guirguis, Arsany
name: Hoang, Lê Nguyên
name: Rouault, Sébastien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We study Byzantine collaborative learning, where $n$ nodes seek to collectively learn from each others' local data. The data distribution may vary from one node to another. No node is trusted, and $f < n$ nodes can behave arbitrarily. We prove that collaborative learning is equivalent to a new form of agreement, which we call averaging agreement. In this problem, nodes start each with an initial vector and seek to approximately agree on a common vector, which is close to the average of honest nodes' initial vectors. We present two asynchronous solutions to averaging agreement, each we prove optimal according to some dimension. The first, based on the minimum-diameter averaging, requires $ n \geq 6f+1$, but achieves asymptotically the best-possible averaging constant up to a multiplicative constant. The second, based on reliable broadcast and coordinate-wise trimmed mean, achieves optimal Byzantine resilience, i.e., $n \geq 3f+1$. Each of these algorithms induces an optimal Byzantine collaborative learning protocol. In particular, our equivalence yields new impossibility theorems on what any collaborative learning algorithm can achieve in adversarial and heterogeneous environments.
description: 34 pages, 1 figure
A Class of Exact Solutions of the Faddeev Model
Creators: name: Hirayama, M.
name: Shi, C. -G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A class of exact solutions of the Faddeev model, that is, the modified SO(3) nonlinear sigma model with the Skyrme term, is obtained in the four dimensional Minkowskian spacetime. The solutions are interpreted as the isothermal coordinates of a Riemannian surface. One special solution of the static vortex type is investigated numerically. It is also shown that the Faddeev model is equivalent to the mesonic sector of the SU(2) Skyrme model where the baryon number current vanishes.
description: 20 pages, 7 figures, refs. added
Geostrophic ocean surface velocities from TOPEX Altimetry, and CHAMP and GRACE satellite gravity models
Creators: name: Dobslaw, Henryk
Publisher: name: GFZ, Helmholtz-Zentrum
Year: 2004

description: Recently released global gravity field models generated solely from CHAMP and GRACE satellite observations allow with an unprecedented accuracy and resolution the recovery of the mean sea surface topography from the difference between an altimetry-based mean sea surface height model and the gravity model's derived geoid. Here the CHAMP EIGEN-2 gravity field model, and the first GFZ GRACE gravity model, EIGEN-GRACE01S, are used. The mean sea surface height model has been compiled from four years'; worth of TOPEX altimeter data. To evaluate the accuracy and resolution limits of the CHAMP and GRACE geoids for the envisaged application, a low pass filter in the spatial domain with different cut-off wavelengths has been applied to the geoid and sea surface data before subtraction. The minimum wavelength, where noisy and erroneous features in the recovered sea surface topography are minimised, can be interpreted as an indicator for the best suited common spatial resolution. The EIGEN-2 model's geoid has been tested to have a resolution of 1800 km, which corresponds to a truncation degree of l = 22 in terms of spherical harmonics. Using the EIGEN-GRACE01S model, the resolution could be extended to 1000 km (l = 40). These boundaries can be attributed to the geoid's error, exceeding 2 cm in case of the CHAMP model, and in case of the GRACE model to spurious systematic signals increasing with increasing spherical harmonic degree. The calculated sea surface topography models have been used to derive absolute geostrophic sea surface velocities. An error propagation shows that the requirement of 1 cm/s for geoid induced velocity errors is fulfilled at the given resolutions for all latitudes excluding a narrow equatorial band. Maximum geostrophic velocities are derived in the 1000 km-resolution model for the Kuroshio region with 40 cm/s, and for the Gulf Stream east off Cape Hatteras with 25 cm/s.
description: report
title: The trumpet in Scotland from 1488 to 1800
Creators: name: McGrattan, Alexander
Publisher: name: The Open University
Year: 1999

description: References to trumpeters appear in records of the Scottish royal court from the fourteenth and fifteenth centuries. During the reign of James IV, several groups of Italian minstrels came from Bologna to serve the Scottish King. The first group to arrive was a wind band, which was appointed to a permanent place at court. By the reign of James VI this ensemble had evolved into the royal trumpet corps. When James VI ascended to the throne of England and moved to London in 1603, the Scottish royal trumpeters were transferred to the English royal trumpet corps. Gradually, a royal trumpet corps was re-established in Scotland. Solo items for trumpet, performed by one of the royal trumpeters, were included in a concert presented in Edinburgh in 1695, the first concert in Scotland of which details have survived. During the eighteenth century, a number of prominent professional musicians in Edinburgh served as royal trumpeters. Several of these appear not to have played brass instruments other than to fulfil their official duties. A calendar of references to the trumpet, drawn mainly from archival sources, forms a central part of this thesis. Subsequent chapters analyse the material contained in the calendar and consider the deployment of the trumpet in a cultural context. Issues relating to terminology, patronage, repertoire and the symbolism of the trumpet are discussed. The study focuses on the use of the trumpet in royal service and provides the first detailed examination of the role of wind instrumentalists at the Scottish royal court during the sixteenth century. The ceremonial function of the trumpet is considered, and in particular its use in funeral and judicial ceremonies during the seventeenth century. The role of the trumpet in concerts and the theatre during the eighteenth century, and the relationship between trumpet and horn playing are examined, as is the function of the royal trumpet corps as a source of patronage for the Edinburgh Musical Society.
COOPERATION IN CONTEMPORARY CAPITALISM: SIGNIFICANT FACTORS THAT UNCOVER WHY EMBODIED COOPERATION AMONG MIGRANT NIGHTSHIFT WORKERS IS WEAKENED
Creators: name: MacQuarie, Julius-Cezar
Publisher: name: figshare
Year: 2020
Subjects: subject: 160104 Social and Cultural Anthropology
subject: FOS: Sociology
subject: Anthropology
subject: 160199 Anthropology not elsewhere classified
subject: 160807 Sociological Methodology and Research Methods
subject: 160810 Urban Sociology and Community Studies
subject: 160899 Sociology not elsewhere classified
subject: 160808 Sociology and Social Studies of Science and Technology

description: COOPERATION IN CONTEMPORARY CAPITALISM: SIGNIFICANT FACTORS THAT UNCOVER WHY EMBODIED COOPERATION AMONG MIGRANT NIGHTSHIFT WORKERS IS WEAKENED  Abstract  London’s 24/7 rhythms throb with lives of nocturnal workers. The Sleepless Bats, whose nocturnal lives I have studied are bio-automatons remote from co-operating or from supporting each other in solidarity. Migrant night shift workers do something together but not with one another. Night shift workers survive precariousness because they are immune to co-workers’ needs, and not because they offer each other mutual support out of humanness. Through the analytical lens of learned bodily knowledge, the study interrogated the modes of the embodiment that over time enhance night workers’ social life skills. The becoming of embodied cooperation not only involves routinised, rhythmic practices ingrained in the body through repetitive, physical tasks, but also physical gestures that build social relations amongst workers who learn to engage meaningfully in dealing with ambiguity, resistance and difference. The relevant aspects of embodied forms of interaction investigated involve workers’ trajectories being disrupted from naturally cooperative to socially competitive.
Average effects for regression models with misspecifications and diffuse interaction models
Creators: name: Liu, Juxin
Publisher: name: University of British Columbia
Year: 2011

description: In epidemiological studies, how best to assess and interpret interaction of risk factors of interest has been the subject of a lively debate. In statistical regression models, the interaction between two putative risk factors is described by the regression coefficient of the product of the risk factors. What happens if a linear regression model without pairwise interaction terms is used to fit the data actually generated from a linear regression model with all possible pairwise interactions? We apply the idea of average effect to evaluate the consequence of misspecified models and find out that the average effect estimates are still consistent if the joint distribution of risk factors satisfy some certain conditions. It is known that pairwise interaction models encounter intractable problems especially when the number of risk factor under consideration is quite large. The number of pairwise interaction terms is p (p -1)/2, if the number of risk factors is p. As an alternative strategy, we introduce diffuse interaction model with only one parameter to reflect the interactions among all the risk factors, without specifying which of the risk factors do indeed interact. We compare the two kinds of interaction models in terms of ability to detect interactions. Another issue investigated in the thesis is to devise MCMC algorithms to estimate diffuse interaction models. This is done not only for the diffuse interaction model assuming all risk factors interact in the same direction, either synergistically or antagonistically, but also for extended diffuse interaction models which relaxing this strong assumption.
Common Mode Voltage reduction in Diode Clamped MLI using Alternative Phase Opposition Disposition SPWM Technique
Creators: name: Esa, Mohd
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The main objective of this paper is to reduce the Common Mode Voltage (CMV) in the Diode Clamped Multilevel Inverter (DCMLI).Three phase Y-connected RL load is connected to DCMLI. The common mode voltage exists between neutral point of Y-connected load and system ground.CMV causes premature failure of bearings of induction motor and is essential to reduce. In this paper, Alternative Phase Opposition Disposition SPWM technique is used to reduce common mode voltage. Two level, five level, seven level and nine level DCMLI are compared in terms of THD and CMV.The effect of a passive LC filter on THD was studied. The simulation of circuit is carried out by using MATLAB/Simulink. Simulation result portrays reduction in THD and CMV by using APOD-SPWM controlled higher level Inverters.
Why Are The Secondary Stars in Polars So Normal?
Creators: name: Harrison, Thomas E.
name: Howell, Steve B.
name: Szkody, Paula
name: Cordova, France A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used NIRSPEC on Keck II to obtain $K$-band spectroscopy of several magnetic cataclysmic variables. These data reveal that the secondary stars in these binary systems have spectra that are consistent with normal, late-type dwarfs in both their atomic and molecular line strengths, as well as in the slopes of their continuua. This result is in stark contrast to the infrared spectra of their non-magnetic cousins, nearly all of which show peculiar abundances, especially of CNO species and their isotopes. It appears that the evolutionary path taken by the secondary stars in magnetic systems differs from that for the non-magnetic systems. We discuss the implications of this result.
description: 16 pages, 2 figures