cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The spatial awareness competence of Tasmanian infant and primary teachers and student teachers
Creators: name: Anderson, KC
Publisher: name: University Of Tasmania
Year: 2023

description: A two-component model of teacher Spatial Awareness competence, a spatial abilities component and a syllabus specific component, was used as the basis for this study. The two samples tested were a 1-in-10 random sample of Tasmanian Infant and Primary teachers (via postal survey) and the year IV (i.e. last year of teacher training) Tasmanian Infant and Primary student teachers. The response rates were, respectively, 79.1% (178 out of 225) and 84.3% (193 out of 229). For each teacher and student teacher two tests were completed, a spatial abilities test and one of two parallel forms of an original Spatial Awareness Teaching Test (SATT). The latter was a 36 item test based on the Kindergarten to Grade 6 range of the Spatial Awareness strand of the (Tasmanian) Primary Mathematics Guidelines. It was noted that other tests of teacher and student teacher geometry on space competence had apparently not contained the range of classroom relevant test items for the grade range of responsibility of their samples. However, in the present study in keeping with the Guidelines, SATT was divided in to three sub tests, the Infant, Middle Primary, and Upper Primary sub tests, formed from consecutive groups of 12 questions, respectively. To simplify reporting and analysis the data from both forms of SATT were combined into a single SATT . The combined data were analysed at two levels. First, a description of SATT results and item competences for the two samples was given. As well, a description of sub tes t results and item competence for the teacher subsample at their main level of teaching (Infant, Middle Primary Or Upper Primary) and student teachers at their level of teacher training (Infant or Primary) was given. In addition, the errors of teachers and student teachers on the most difficult items from their relevant sub test were tabulated and briefly discussed. At the second level of analysis, SATT score for both samples was adjusted for the spatial abilities component (thus making the 'residual' SATT score more \syllabus specific\") and then analysed with various factors. For teachers the four out of nine factors which were initially found to be significant were used in a four-way stepdown ANCOVA . Secondary mathematics background' 'level of teaching' 'feedback' were significant and 'sex' became non-significant. The in-service implications of these results (based on this order of significant factors) were discussed. For student teachers as all their four factors were initially found to be significant a four-way stepdown ANCOVA was performed. Secondary mathematics background' and 'course of study\" remained significant and 'feedback' and 'sex' became nonsignificant. The implications of these results for entry into teacher training pre-service mathematics education and inservice mathetics education were discussed. Suggestions for further study based on the ideas of the present study were made."
title: Learning brief: Coordinating and managing information during the COVID-19 pandemic
Creators: name: White, Sian
name: Collin, Claire
Publisher: name: London School of Hygiene and Tropical Medicine
Year: 2021

description: This brief summarises lessons learned about coordination and information management during the COVID-19 pandemic. In this brief, we describe how existing coordination mechanisms adapted to the pandemic and how new mechanisms arose to meet new needs. We also describe patterns in coordination and information management across all phases of the programme cycle. We provide practical recommendations to guide coordination and information management in the short term, in response to COVID-19, and ideas for how coordination and information management could be strengthened to support future outbreak responses. The lessons shared in this brief are drawn from the work of the COVID-19 Hygiene Hub. This brief is primarily designed for people engaged in coordination platforms within the water, sanitation and hygiene (WASH) sector. It is also relevant to other programmers, researchers, policy makers and funders who have been involved in COVID-19 prevention programming.
Three-Dimensional Simulations of Bi-Directed Magnetohydrodynamic Jets Interacting with Cluster Environments
Creators: name: O'Neill, S. M.
name: Jones, T. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report on a series of three-dimensional magnetohydrodynamic simulations of active galactic nucleus (AGN) jet propagation in realistic models of magnetized galaxy clusters. We are primarily interested in the details of energy transfer between jets and the intracluster medium (ICM) to help clarify what role such flows could have in the reheating of cluster cores. Our simulated jets feature a range of intermittency behaviors, including intermittent jets that periodically switch on and off and one model jet that shuts down completely, naturally creating a relic plume. The ICM into which these jets propagate incorporates tangled magnetic field geometries and density substructure designed to mimic some likely features of real galaxy clusters. We find that our jets are characteristically at least 60% efficient at transferring thermal energy to the ICM. Irreversible heat energy is not uniformly distributed, however, instead residing preferentially in regions very near the jet/cocoon boundaries. While intermittency affects the details of how, when, and where this energy is deposited, all of our models generically fail to heat the cluster cores uniformly. Both the detailed density structure and nominally weak magnetic fields in the ICM play interesting roles in perturbing the flows, particularly when the jets are non-steady. Still, this perturbation is never sufficient to isotropize the jet energy deposition, suggesting that some other ingredient is required for AGN jets to successfully reheat cluster cores.
description: 19 pages, 18 figures, Accepted for publication in the Astrophysical Journal
The Architectural Illustrator: A Key Figure in Visual Communication
Creators: name: Leandri, Gaia
Publisher: name: img journal
Year: 2023

description: In contemporary architectural practice a key role in visual communication is performed by the illustrator. This professional shares the expertise of the architect, master of a strictly technical-engineering language, and the artist in the broadest sense of the term. For an architect drawing is a means, for the illustrator an end in itself. As a mediator between the designer and the general public, he must be able to deeply understand the architect’s thoughts, translate his ideas into images and convey the correct message to the audience. Sometimes visual messages, though obvious to the illustrator, can be unclear for the observer and generate misleading responses.
In these cases the type of image has great importance being a sort of language more or less understandable. This paper reports on a survey that was created in order to assess some of the fundamental elements that characterize the visual products. It was carried out at the Department of Architecture and Design, University of Genoa, and its results support the thesis that the architect’s idea and creative spirit can best be conveyed by a hand drawn image, whether traditionally or digitally executed, rather than a computer-generated image such as a photorealistic render.
description: img journal, No. 8 (2023): Imaging and Imagery in Architecture
Enhancement in superconducting transition temperature and upper critical field of LaO0.8F0.2FeAs with antimony doping
Creators: name: Singh, S. J.
name: Prakash, J.
name: Patnaik, S.
name: Ganguli, A. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the synthesis and characterization of antimony doped oxypnictide superconductor, LaO0.8F0.2FeAs1-xSbx (x = 0.05 and 0.10). The parent compound LaOFeAs with fluorine doping exhibits superconductivity at maximum transition temperature ~ 28.5 K [11]. Here we partially substitute As by Sb (LaO0.8F0.2FeAs1-xSbx) and observe enhancement of the transition temperature to 30.1 K. This is the only instance so far where Tc increases with doping in the conducting layer (FeAs) and this leads to the highest transition temperature in any La-based oxypnictide. XRD and EDAX measurements confirm phase purity of the samples and the presence of Sb. The magneto-resistance measurements show that the value of upper critical field Hc2(0) to be about 73 T corresponding to a coherence length of 22 angstrom. The Seebeck coefficient measurements indicate electron transport with strong contribution from electron-electron correlation. These results provide interesting insight to the origin of superconductivity in these novel series of compounds.
Tracing Zeitgeist: The Cyberflâneur and Their Smartphone
Creators: name: Greyvensteyn, Pieter
Publisher: name: img journal
Year: 2023

description: This essay investigates the way in which architecture is communicated in the postdigital era. Digital collages, created from photographs taken by so-called cyberflâneurs with their smartphones and reinterpreted through current smartphone applications, were the architectural representations under the spotlight. Generation Z architecture students were assigned the role of the cyberflâneur; a flâneur being defined as someone experiencing urban space on their own terms, 'cyber' referring to the flâneur’s instrument, the smartphone.
Drawing and design are explored through the triad of hand, mind and smartphone. The visual artefacts being communicated are buildings in central Pretoria and Johannesburg, South Africa and in Maputo, Mozambique, from a list based on a compact urban typology built either 50- or 100-year-ago. The imagery on the screen of the smartphone becomes the lens through which we experience reality. The quality and complexity of the digital collages are telling of our zeitgeist; patterns and algorithms can be traced. Technology provide us with the tools to connect us to a synchrony that is the pulse of global culture. The graphic analysis of the visual material produced by the cyberflâneurs propagates zeitgeist as a major contributor to architectural expression by tracing a universal synchronicity.
description: img journal, No. 8 (2023): Imaging and Imagery in Architecture
The environmental control of Australian rainforest
Creators: name: Bowman, David
Publisher: name: University Of Tasmania
Year: 2023

description: The fragmented nature of the rainforest archipelago in Australia, and the environmental constraints associated with it, have been a major focus of my research over the last twenty years. This thesis is my contribution to the problem. It includes a book and 53 scientific articles. The book is my synthesis of the available evidence. The scientific articles are my research contribution to the issue, based mainly on field studies in Tasmania and the monsoonal tropics of Western Australia, Queensland and throughout the Northern Territory. I began this research as a post-graduate student at the University of Tasmania, but most was conducted whilst I was a wildlife ecologist with the Parks and Wildlife Commission of the Northern Territory. The book was written during a one-year fellowship at Harvard University and was finalised in my capacity as a Principal Research Fellow at the Northern Territory University. Three articles (marked in bold in Table 1) are based on work I undertook for my Botany honours degree at the University of Tasmania. I have not previously submitted any other work included in this thesis for any other degree. I am the sole author of the book and eleven of the 53 articles.
Additional file 2 of Overexpression of OsLCT2, a Low-Affinity Cation Transporter Gene, Reduces Cadmium Accumulation in Shoots and Grains of Rice
Creators: name: Tang, Li
name: Dong, Jiayu
name: Tan, Longtao
name: Ji, Zhongying
name: Li, Yaokui
name: Sun, Yuantao
name: Chen, Caiyan
name: Lv, Qiming
name: Mao, Bigang
name: Hu, Yuanyi
name: Zhao, Bingran
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Additional file 2. Supplemental Tables. Table S1. Concentrations of metal in shoots and roots of OsLCT2 seedling (mg/kg). Table S2. Primers used in the present study.
The Köln Museum: Imagery and Imaging in the Architecture of James Stirling
Creators: name: Colonnese, Fabio
Publisher: name: img journal
Year: 2023

description: The 1970s museum projects of James Stirling provide the opportunity to explore a design process intended to design a building as a combination of fragments that quote historical buildings or typologies along a route. While the collection of spaces of the unbuilt museum for Cologne indirectly reveals Stirling’s own architectural imagery almost in a chronological sense, the drawings produced to present the competition entry in 1974 are anything but explicit and ask the reader to collaborate to decipher the architectural contents. This apparent contradiction is here analyzed and discussed in the key provided by Stirling’s peculiar interest in drawing, his office organization, and the agency Leon Krier had in it while preparing the drawings for the first monograph on the Scottish architect.
description: img journal, No. 8 (2023): Imaging and Imagery in Architecture
Visualizing Change in Radical Cities and Power of Imagery in Urban Transformation
Creators: name: Mehan, Asma
Publisher: name: img journal
Year: 2023

description: Cities have consistently served as fertile grounds for the emergence and growth of radical ideas, political transformations, and social movements, with urban landscapes nurturing visionary concepts, idealism, and revolutionary ideologies. This research delves into the captivating world of radical cities, exploring the power of image and visual narratives to communicate and comprehend urban activism within diverse contexts. By analyzing various case studies and student works, we aim to create, study, and reimagine vivid portrayals of urban activism, radical urbanism, and future socio-spatial developments. The focus lies on developing innovative visual modalities and collaborative critical pedagogical approaches that engage with the complexities of radical cities across North America, Latin America, Asia, Europe, and beyond. In this study, we explore the potential of image and visual narratives to decode and understand pivotal societal transitions in radical cities. By employing imaginative and critical pedagogy, we aspire to foster a more profound comprehension of urban activism and its impact on shaping the cities of the future.
description: img journal, No. 8 (2023): Imaging and Imagery in Architecture
The subject's hypothesis : its determinants and its effect on research data
Creators: name: Safford, Ralph Kirk
Publisher: name: University of British Columbia
Year: 2011

description: Subjects' hypotheses about the purposes of experiments, regardless of the accuracy of such hypotheses, may contaminate research data. Experiment I was designed to assess how readily subjects generate hypotheses about experiments and what effect such hypotheses have on performance. In the context of a personality impressions experiment, forty subjects participated either in one of two bogus hypothesis conditions, in which they were given unauthorized information about the purpose of the experiment by an accomplice posing as a subject, or in a no bogus hypothesis condition, in which they received no unauthorized information but were interviewed at the experiment's termination for self-generated hypotheses. Bogus hypotheses were not found to have affected subjects' task performance and only two of the fourteen subjects interviewed reported an attempt to generate an hypothesis. This latter result was interpreted as contradicting the notion that subjects are strongly motivated to figure out the purpose of an experiment. It was hypothesized that subjects are indifferent towards the purposes of research generally, and that certain types of experimental stimuli must be present in an experiment in order to arouse subjects to speculate about research purposes. Experiment II, designed to test this hypothesis, investigated the speculation arousal function of two such types of stimuli -experimental rationales and sensitization tasks. Thirty-six subjects participated in one of four conditions provided by orthogonal manipulation of the two treatment variables and had their level of suspicion, apprehension, and speculation about the experiment assessed by a brief post-experimental questionnaire. Neither factor was shown to have an arousal function as no significant differences were obtained. Other factors possibly involved in arousing subject speculation were discussed.
Sensing of Fluctuating Nanoscale Magnetic Fields Using NV Centres in Diamond
Creators: name: Hall, Liam T.
name: Hill, Charles D.
name: Cole, Jared H.
name: Hollenberg, Lloyd C. L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: New magnetometry techniques based on Nitrogen-Vacancy (NV) defects in diamond allow for the imaging of static (DC) and oscillatory (AC) nanoscopic magnetic systems. However, these techniques require accurate knowledge and control of the sample dynamics, and are thus limited in their ability to image fields arising from rapidly fluctuating (FC) environments. We show here that FC fields place restrictions on the DC field sensitivity of an NV qubit magnetometer, and that by probing the dephasing rate of the qubit in a magnetic FC environment, we are able to measure fluctuation rates and RMS field strengths that would be otherwise inaccessible with the use of DC and AC magnetometry techniques. FC sensitivities are shown to be comparable to those of AC fields, whilst requiring no additional experimental overheads or control over the sample.
description: 5 pages, 4 figures
The Digital Paradigm in Contemporary Architecture
Creators: name: Mediati, Domenico
Publisher: name: img journal
Year: 2023

description: The architecture of the 20th century has been largely affected by changes in the field of technology. In particular, the evolution of digital representation has led to new visions of contemporary architectural space. Expressive freedoms, which in the pre-digital era stemmed from visionary approaches, now become feasible thanks to modern modelling technologies. They determine a mutation of working processes and creative elaboration, proving to be more than just a mechanical tool without theoretical-speculative implications. Transformation of reality into updatable and modifiable data flows leads towards a new weltanschauung, characterised by the modern paradigms of precariousness and flexibility.
Digital world, based on processing of algorithms and information, becomes a link between art and mathematics. The theoretical universe based on the fourth dimension and non-Euclidean geometries, which had produced interesting artistic effects in the avant-garde movements of the 20th century, now finds a means of expression in the field of architecture.
The paper explores implications that digital technologies have had on mutations of contemporary architecture: from the fluid and deconstructed shapes linked to multidimensional experiments to the most recent experiences, placed at the border between art and architecture, that are experimenting with the transfer of digital language into the real world.
description: img journal, No. 8 (2023): Imaging and Imagery in Architecture
Determination of phase diagrams via computer simulation: Methodology and applications to water, electrolytes and proteins
Creators: name: Vega, C.
name: Sanz, E.
name: Abascal, J. L. F.
name: Noya, E. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this review we focus on the determination of phase diagrams by computer simulation with particular attention to the fluid-solid and solid-solid equilibria. The calculation of the free energy of solid phases using the Einstein crystal and Einstein molecule methods are described in detail. It is shown that for the hard spheres solid both methods yield the same results and that free energies of solid phases present noticeable finite size effects. Finite size corrections can be introduced, although in an approximate way, to correct for the dependence of the free energy on the size of the system. The computation of free energies of solid phases can be extended to molecular fluids. The procedure to compute free energies of solid phases of water (ices Ih, II, III, IV, V, VI, VII, VIII, IX, XI and XII) using the SPC/E and TIP4P models will be described.Other methods to estimate the melting point of a solid, as the direct fluid-solid coexistence or simulations of the free surface of the solid will be discussed. It will be shown that the melting points of ice Ih for several water models, obtained from these two methods and from free energy calculations agree within statistical uncertainty. Phase diagram calculations can help to improve potential models of molecular fluids; for water, the TIP4P/2005 model can be regarded as an improved version of TIP4P. We will also review some recent work on the phase diagram of the simplest ionic model, the restricted primitive model. Although originally devised to describe ionic liquids, the model is becoming quite popular to describe charged colloids. Besides the possibility of obtaining fluid-solid equilibria for simple protein models will be discussed. In these primitive models, the protein is described by a spherical potential with certain anisotropic bonding sites.
description: 72 pages, 15 figures
Der AKIS Ansatz – (wie) unterstützt er die Akteure im Sektor?
Creators: name: Knierim, Andrea
name: Birke, Fanos Mekonnen
name: Bae, Sangeun
name: Schober, Annkatrin
name: Gerster-Bentaya, Maria
name: Asensio, Pablo
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2022

description: Wissens- und Innovationssysteme in der Landwirtschaft (AKIS) sind ein Thema, das in letzter Zeit auf der Ebene der Europäischen Union große politische Aufmerksamkeit erlangt hat. Hauptgrund dafür ist die veränderte Ausrichtung der GAP, die darauf abzielt, die nationalen Agrarpolitiken zu stärken, was durch die Entwicklung nationaler Strategien erreicht werden soll. Da der AKIS-Ansatz in Deutschland und der EU noch nicht breit bekannt ist und verwendet wird, stellen wir in diesem Beitrag das AKIS-Konzept im Allgemeinen vor und differenzieren es für Deutschland auf der nationalen Ebene. Dabei geht es darum, (i) eine Einschätzung des deutschen AKIS bzw. seiner Komponenten und Subsysteme zu leisten, (ii) die Verwendung des AKIS-Konzepts für Wissenschaft und Praxis zu veranschaulichen, und (iii) eine das Konzept und seine Verwendung kritisch zu betrachten. Unsere Analyse basiert auf der Auswertung von veröffentlichter als auch grauer Literatur, qualitativen halbstrukturierten Experteninterviews und einer Online-Umfrage unter Beratungsdienstleistern in Deutschland. Die Ergebnisse zeigen, dass das AKIS-Konzept zur Situationsanalyse und Identifizierung von Stärken und Schwächen von Infrastrukturen, Interaktionen und Funktionen beitragen und die Entwicklung von Koordinierungs- und Steuerungsmaßnahmen unterstützen kann. Aus den empirischen Daten geht hervor, dass das AKIS in Deutschland durch eine Vielzahl von ressourcenstarken, überregional agierenden Akteuren gekennzeichnet ist, unter denen insbesondere die berufsständische Verbände und Vereine sowie die Landwirtschaftskammern horizontal und vertikal vernetzt sind. Während die Heterogenität der Akteure und der Pluralismus der Wissensdienstleister positiv gewürdigt werden, sind Koordinationsinfrastrukturen und integrative Politikinstrumente in Deutschland nur in geringem Umfang vorhanden, bzw. funktionieren besonders in Subsystemen wie dem Beratungssystem oder werden kaum genutzt. Netzwerke und Partnerschaften, wie sie in den Operationellen Gruppen der EIP AGRI vorgestellt werden, gelten als vielversprechend für effektiven Wissensaustausch und Lernen in AKIS, erfordern aber mehr Flexibilität und einen relativ höheren Aufwand seitens der AKIS-Akteure. Als weiteres Ergebnis zeigt sich, dass es wichtig und vermehrt erforderlich ist, die Bedürfnisse der Landwirte zu ermitteln, um ein gutes Maß an Nutzerorientierung bei der Wissensgenerierung zu erreichen.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Aktuelle Beiträge
Cutoff Effects on Energy-Momentum Tensor Correlators in Lattice Gauge Theory
Creators: name: Meyer, Harvey B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the discretization errors affecting correlators of the energy-momentum tensor $T_{μν}$ at finite temperature in SU($N_c$) gauge theory with the Wilson action and two different discretizations of $T_{μν}$. We do so by using lattice perturbation theory and non-perturbative Monte-Carlo simulations. These correlators, which are functions of Euclidean time $x_0$ and spatial momentum ${\bf p}$, are the starting point for a lattice study of the transport properties of the gluon plasma. We find that the correlator of the energy $\int d^3x T_{00}$ has much larger discretization errors than the correlator of momentum $\int d^3x T_{0k}$. Secondly, the shear and diagonal stress correlators ($T_{12}$ and $T_{kk}$) require $\Nt\geq 8$ for the $Tx_0={1/2}$ point to be in the scaling region and the cutoff effect to be less than 10%. We then show that their discretization errors on an anisotropic lattice with $\as/\at=2$ are comparable to those on the isotropic lattice with the same temporal lattice spacing. Finally, we also study finite ${\bf p}$ correlators.
description: 16 pages, 5 figures
Synchrotron Emission From Young And Nearby Pulsars
Creators: name: Kelso, Christopher M.
name: Hooper, Dan
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The rising cosmic ray positron fraction reported by the PAMELA collaboration has lead to a great deal of interest in astrophysical sources of energetic electrons and positrons, including pulsars. In this paper, we calculate the spectrum of synchrotron emission from electrons and positrons injected from 376 young pulsars (<10^6 years) contained in the ATNF catalog, and compare our results to observations. We find that if objects such as the Vela and Crab pulsars have injected ~10^48 erg or more in energetic electrons and/or positrons, they are expected to produce bright and distinctive features in the synchrotron sky. Intriguingly, we predict hard synchrotron emission from these regions of the sky which is qualitatively similar to that observed by WMAP.
description: 11 pages, 4 figures
Solar drying of tropical fish in Indonesia
Creators: name: Barsong,
Publisher: name: University Of Tasmania
Year: 2023

description: Mathematical models were developed to simulate performance of an indirect solar fish drier. A computer simulation was carried out to predict a drying rate including moisture content and water activity of dried fish. Based on the simulation, a new design of a solar fish drier was constructed and tested in Indonesia. Salted fish Gulamah (Pseudociena amoyensis) and Pan i Kelapa (Trygon sepheu) were dried over a four day period. Meteorological data and data relating to the fish were measured. The results were compared with prediction from the computer model to assess its validity and limitations. The mathematical model predicted a slightly lower drying rate, final moisture contents and water acitvity of the dried fish than those measured.
Possible Shape Coexistence and Magnetic Dipole Transitions in $^{17}$C and $^{21}$Ne
Creators: name: Sagawa, H.
name: Zhou, X. R.
name: Suzuki, Toshio
name: Yoshida, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Magnetic dipole(M1) transitions of N=11 nuclei, $^{17}$C and $^{21}$Ne are investigated by using shell model and deformed Skyrme Hartree-Fock+blocked BCS wave functions. Shell model calculations predict well observed energy spectra and magnetic dipole transitions in $^{21}$Ne, while the results are rather poor to predict these observables in $^{17}$C. In the deformed HF calculations, the ground states of two nuclei are shown to have large prolate deformations close to $β_2$=0.4. It is also pointed out that the first $K^π=1/2^+$ state in $^{21}$Ne is prolately deformed, while the first $K^π=1/2^+$ state in $^{17}$C is predicted to have a large oblate deformation being close to the ground state in energy, We point out that experimentally observed large hindrance of M1 transition between $I^π=1/2^+$ and $3/2^+$ in $^{17}$C can be attributed to a shape coexistence near the ground state of $^{17}$C.
description: 5pages, 1figure. Phys. Rev. C, rapid communications, in press
influence of gold mining on radioactivity of mining sites soil in Tanzania
Creators: name: Focus, Erasto
name: Rwiza, Mwemezi J.
name: Mohammed, Najat K.
name: Banzi, Firmi P.
Publisher: name: EQA - International Journal of Environmental Quality
Year: 2022

description: The activity of 226Ra, 232Th and 40K in soil samples were measured by gamma spectrometry using high-purity germanium detector. The study involved 40 samples from four divisions: 10 samples each were drawn from the control area (CTR), washing area 1 (W1), washing area 2 (W2) and the mining pits (MP). Radium and Thorium were measured in highest value (80.44 and 94.62) Bq/kg, respectively at MP-9 while the lowest levels (1.56 and 0.96) Bq/kg, respectively were detected at MP-2. At W1, 40K (max. 887.5 Bq/kg) recorded the highest mean level while 232Th (mean=16.7 Bq/kg) had the lowest level. For W2, 40K (max. 1535.7 Bq/kg) recorded highest level and 232Th (mean = 8.1 Bq/kg) recorded the lowest (10.7 Bq/kg). Results further show that mean activity levels of 226Ra, 232Th and 40K fromining area 42.5, 35.5 and 652.4Bq/kg, respectively. In comparison, the respective average activity for 40K, 226Ra, and 232Th recoded 118.4, 14.5 and 9.7 Bq/kg, respectively in control area. For the sake of assessing the suitability of building materials, hazard indices were calculated and their results were less than unity indicating that, building materials are safe. The annual gonadal equivalent dose, representative gamma index, alpha index revealed values of 484.8 µSv/y, 1.1 and 0.2, respectively. The average annual effective dose was 85.5 mSv which is about 8% greater than the world average. Results show that mining activities in Rwamagasa might be posing radiological hazard to people. Therefore, measures on radioactive materials to the miners and the surrounding community are recommended.
description: EQA - International Journal of Environmental Quality, Vol. 46 (2021)
Methods for restriction enzyme analysis of mitochondrial DNA from adult and puerulus rock lobster, Jasus edwardsii (Crustacea:Decapoda:Palinuridae).
Creators: name: Brasher, Darren John
Publisher: name: University Of Tasmania
Year: 2023

description: A relatively inexpensive and rapid technique is described for the isolation and restriction enzyme analysis of mitochondrial DNA (mtDNA) from adult rock lobster belonging to the genus Jasus. Using this technique, easily detectable and reproducible fragment patterns were obtained from mtDNA extracted from antenna! glands. Mitochondrial DNA from four other tissues ‚ÄövÑvÆ hepatopancreas, oocytes, gill, heart ‚ÄövÑvÆ was recovered in low yields or contaminated with nuclear DNA. From an initial screening process involving 29 restriction enzymes, only five generated interpretable fragment patterns from antennal gland mtDNA following electrophoresis and autoradiography. Re-screening unsuccessful enzymes with four enzyme enhancers (magnesium chloride, Triton X-100, bovine serum albumin [BSA], spennidine) provided 11 additional useful enzymes. From these 16 enzymes, the six most informative were chosen and their activity and reliability further optimized with systematically varied combinations and concentrations of BSA and spermidine. Preliminary experiments showed that the standard technique employed to extract and analyze the mtDNA of adult rock lobster could not be applied to the puerulus stage. An alternative technique, in situ gel hybridization, was used for the detection of mtDNA restriction fragments from a puerulus. Due to a low degree of sequence homology, puerulus mtDNA restriction fragments could not be detected using probe synthesized from cloned honeybee mtDNA. Probe synthesized from gel purified adult mtDNA enabled partial genetic characterization of a puerulus larva. This puerulus was identified as having three restriction fragments in common with an adult specimen. Diffusion of small fragments from the gel meant that a small portion of the pueulus mtDNA (‚ÄövÑvÆ 10%) could not be characterized. However, by selecting restriction enzymes that produce large fragments from variable regions of the genome, informative genetic markers could be routinely analyzed.
Quantum Monty Hall problem under decoherence
Creators: name: Khan, Salman
name: Ramzan, M.
name: Khan, M. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of decoherence on quantum Monty Hall problem under the influence of amplitude damping, depolarizing and dephasing channels. It is shown that under the effect of decoherence, there is a Nash equilibrium of the game in case of depolarizing channel for Alice's quantum strategy. Where as in case of dephasing noise, the game is not influenced by the quantum channel. For amplitude damping channel, the Bob's payoffs are found symmetrical with maximum at p=0.5 against his classical strategy. However, it is worth-mentioning that in case of depolarizing channel, Bob's classical strategy remains always dominant against any choice of Alice's strategy.
description: 22 pages, 6 .eps figures
Big Bang Nucleosynthesis: The Strong Nuclear Force meets the Weak Anthropic Principle
Creators: name: MacDonald, J.
name: Mullan, D. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Contrary to a common argument that a small increase in the strength of the strong force would lead to destruction of all hydrogen in the big bang due to binding of the diproton and the dineutron with a catastrophic impact on life as we know it, we show that provided the increase in strong force coupling constant is less than about 50% substantial amounts of hydrogen remain. The reason is that an increase in strong force strength leads to tighter binding of the deuteron, permitting nucleosynthesis to occur earlier in the big bang at higher temperature than in the standard big bang. Photodestruction of the less tightly bound diproton and dineutron delays their production to after the bulk of nucleosynthesis is complete. The decay of the diproton can, however, lead to relatively large abundances of deuterium.
description: 13 figures
Interspecies transmission of SARS CoV-2 with special emphasis on viral mutations and ACE-2 receptor homology roles
Creators: name: Hamdy, Mervat E.
name: Deeb, Ayman H. El
name: Hagag, Naglaa M.
name: Shahein, Momtaz A.
name: Alaidi, Osama
name: Hussein, Hussein A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: COVID-19 outbreak was first reported in 2019, Wuhan, China. The spillover of the disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), to a wide range of pet, zoo, wild, and farm animals has emphasized potential zoonotic and reverse zoonotic viral transmission. Furthermore, it has evoked inquiries about susceptibility of different animal species to SARS-CoV-2 infection and role of these animals as viral reservoirs. Therefore, studying susceptible and non-susceptible hosts for SARS-CoV-2 infection could give a better understanding for the virus and will help in preventing further outbreaks. Here, we review structural aspects of SARS-CoV-2 spike protein, the effect of the different mutations observed in the spike protein, and the impact of ACE2 receptor variations in different animal hosts on inter-species transmission. Moreover, the SARS-CoV-2 spillover chain was reviewed. Combination of SARS-CoV-2 high mutation rate and homology of cellular ACE2 receptors enable the virus to transcend species barriers and facilitate its transmission between humans and animals.
Thermal conductivity of semiconductor superlattices: Experimental study of interface scattering
Creators: name: Duquesne, J. -Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present thermal conductivity measurements performed in three short-period (GaAs)_9(AlAs)_5 superlattices. The samples were grown at different temperatures, leading to different small scale roughness and broadening of the interfaces. The cross-plane conductivity is measured with a differential 3w method, at room temperature. The order of magnitude of the overall thermal conductivity variation is consistent with existing theoretical models, although the actual variation is smaller than expected.
The reform of schooling : a study of the relationship between major curriculum change and school reform
Creators: name: Baker, Janice R.
Publisher: name: University Of Tasmania
Year: 2023

description: The major purpose of the research is to establish the extent to which reform to schooling can be effected by the initiation of major curriculum change such as the Technical and Vocational Education Initiative (England) and the Health Education programme (Tasmania). The study investigates the impact of the Technical and Vocational Education Initiative and the Health Education programme on the knowledge, beliefs and practices of teachers in five schools as the stages of implementing the initiatives proceeded. It investigates the outcomes of professional development programmes and the intervention of change agents as part of the process of changing teachers' knowledge, beliefs and practices, and it investigates the organisational adjustments schools make to accommodate curriculum change. The study uses a conceptual framework drawn from the literature on planned change, and adopts a research orientation largely derived from symbolic interactionism. The research methodology is based on the constant comparative method developed by Glaser and Strauss (1967). Data were gathered using participant observation, key informants, interviews and document analysis, and analysed at the time of collection. The major conclusion of the study is that the curriculum initiatives appear to have failed to reform schooling in the ways intended by the governments which introduced them. The findings suggest that the Technical and Vocational Education Initiative and the Health Education programme have little capacity to reform schooling for a number of reasons. The initiatives have not become incorporated into schools' curricula because they do not accord with the theories of forms and fields of knowledge or translate into classroom practice as \traditional\" subjects do; and they lack a view of schooling which is congruent with the beliefs values and norms of teachers. Planning for the implementation of the initiatives did not account for changes to the roles and role definitions of school personnel involved in the implementation. The planning of professional development programmes did not include the development of a model for change which reflected the Increasingly consistent findings of research into implementing change. Nor did planning account for the fact that the extent to which curriculum initiatives succeed can be assessed by the organisational changes schools make to accommodate them. If reform to schooling is to be effected through curriculum change these conclusions commend further research into the relationship between the characteristics of schools' organisational cultures and curriculum change."
Determining orbits for the Milky Way's dwarfs
Creators: name: Lux, H.
name: Read, J. I.
name: Lake, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We calculate orbits for the Milky Way dwarf galaxies with proper motions, and compare these to subhalo orbits in a high resolution cosmological simulation. We use the simulation data to assess how well orbits may be recovered in the face of measurement errors, a time varying triaxial gravitational potential, and satellite-satellite interactions. For present measurement uncertainties, we recover the apocentre r_a and pericentre r_p to ~40%. With improved data from the Gaia satellite we should be able to recover r_a and r_p to ~14%, respectively. However, recovering the 3D positions and orbital phase of satellites over several orbits is more challenging. This owes primarily to the non-sphericity of the potential and satellite interactions during group infall. Dynamical friction, satellite mass loss and the mass evolution of the main halo play a more minor role in the uncertainties. We apply our technique to nine Milky Way dwarfs with observed proper motions. We show that their mean apocentre is lower than the mean of the most massive subhalos in our cosmological simulation, but consistent with the most massive subhalos that form before z=10. This lends further support to the idea that the Milky Way's dwarfs formed before reionisation.
description: 12 pages, 12 figures, submitted to MNRAS, extended version of conference proceeding arXiv:0912.3276
Charm quark system in 2+1 flavor lattice QCD using the PACS-CS configurations
Creators: name: CS Collaboration
name: Namekawa, Y.
name: Aoki, S.
name: Kadoh, D.
name: Ishii, N.
name: Ishikawa, K. -I.
name: Ishizuka, N.
name: Izubuchi, T.
name: Kanaya, K.
name: Kuramashi, Y.
name: Okawa, M.
name: Taniguchi, Y.
name: Ukawa, A.
name: Ukita, N.
name: Yoshie, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study heavy-heavy and heavy-light quark systems for charm with a relativistic heavy quark action in 2+1 flavor lattice QCD. Configurations are generated by the PACS-CS Collaboration at the lattice spacing is $a=0.09$ fm with the lattice size of $32^3\times 64$ employing the $O(a)$-improved Wilson quark action and the Iwasaki gauge action. We present preliminary results for the charmonium spectrum and the $D$ and $D_s$ meson decay constants evaluated at 3.5 MeV$< m_{\rm ud}
description: 7 Pages, 8 figures, talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, Virginia, USA
Approximate Differential Equations for Renormalization Group Functions in Models Free of Vertex Divergencies
Creators: name: Bellon, Marc
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: I introduce an approximation scheme that allows to deduce differential equations for the renormalization group $β$-function from a Schwinger--Dyson equation for the propagator. This approximation is proven to give the dominant asymptotic behavior of the perturbative solution. In the supersymmetric Wess--Zumino model and a $ϕ^3_6$ scalar model which do not have divergent vertex functions, this simple Schwinger--Dyson equation for the propagator captures the main quantum corrections.
description: Clarification of the presentation of results. Equations and results unchanged. Match the published version. 12 pages
Reasoning by term rewriting
Creators: name: Bulmer, Michael
Publisher: name: University Of Tasmania
Year: 2023

description: We propose a broad system for reasoning by term rewriting. Our general aim is to capture mathematical and scientific reasoning in a coherent system. To this end we introduce several new processes which allow concrete descriptions of standard notions. For deductive reasoning we extend traditional methods for finding canonical rewrite systems to a general method for systems involving both equations and inequations. We introduce the notion of side conditions for nontheorems and show how they provide a new kind of meta-reasoning whereby an automated reasoner can determine why it failed to prove a given statement. A method for the automatic proof of inductive theorems by an analogue of mathematical induction is also presented. A new algorithm is given for inductively generating conjectures (function equations) from a set of observations (a rewrite database). This is a process of scientific induction and we prove some fundamental results linking it to mathematical induction. Comparisons are given with standard inductive learning systems, such as FOIL, to illustrate the expressive power of our algorithm. We obtain probabilistic measures of the strength of a single conjecture using statistical testing and an information measure. For a collection of conjectures we are then able to quantify Popper's well-known falsifiability criterion for the strength of a theory. We also introduce a non-standard modal operator to extended our deductive reasoning to reasoning with conjectures. We use belief dynamics as the framework of an implementation of the reasoning methods. Consistency analysis, using the same canonical-form algorithm introduced earlier, allows the reasoner to build a belief set from given knowledge and to form a working theory from the conjectures it makes. Again a meta-reasoning is introduced, with the reasoner then able to decide what experiments need to be carried out when it conjectures more than one consistent theory from given set of observations. Dialogues with the reasoner, generated by a prototype implementation of the work in the thesis, are given to illustrate its behaviour and the links between the internal language it uses and natural language.
ARRHYTHMIAS IN PREGNANCY: TACTICS OF PATIENT MANAGEMENT
Creators: name: Khudoyarova, D.R.
name: Kobilova, Z.Kh.
name: Zubaydulloeva, Z.Kh.
Publisher: name: Zenodo
Year: 2024

description: The article presents a review of the literature data on the effect of the most common heart rhythm disorders on the body of a pregnant woman and the fetus, the features of the management of such patients, the principles of prescribing antiarrhythmic drugs. Arrhythmias occur in 20-40% of pregnant women, the most common are supraventricular or ventricular extrasystoles, life-threatening malignant arrhythmias are quite rare, and in the absence of structural changes in the myocardium, the prognosis does not affect the prognosis. Have. Due to the possibility of adverse effects on the fetus, antiarrhythmic drugs are prescribed to pregnant women according to strict indications.