cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Languages other than English in Tasmanian primary schools, 1996-1998 : teachers' perspectives on policy and implementation
Creators: name: Harbon, LA
Publisher: name: University Of Tasmania
Year: 2023

description: Over the past thirty years, much research on primary level foreign language education has been conducted in the areas of language immersion/bilingualism and communicative methodologies, and little on the significant area of foreign language curriculum implementation. In fact, much of the literature existing on primary foreign language curriculum implementation is based on anecdotal evidence about what teachers have long \known\" (Met & Galloway 1992). This study presents findings concerning foreign language curriculum policy implementation in the state of Tasmania Australia in the 1990s. The Tasmanian Department of Education and the Arts (DEA) released its Languages other than English (LOTE) Policy in November 1995 (DEA 1995a) responding to national and international trends in delivering foreign language curriculum programs at primary level. The focus of this study is on both Policy intentions and primary LOTE teachers' perceptions of Policy intentions. It also traces Tasmanian primary LOTE teachers' reports of how districts and schools were implementing the Policy and how teachers themselves negotiated a new curriculum area. A conceptual framework based on the work of Fullan (1991a) and Kali& and Lundgren (1979) structured the data within existing theories of curriculum policy implementation. Utilising both quantitative and qualitative data collection methods data were assembled to create a picture of models of implementation in schools and teachers' practices and beliefs about the policy/practice nexus. The findings show that many components suggested by the research literature as necessary in language policy are evident in the Tasmanian LOTE Policy. Three key components characterised the \"intended\" Tasmanian LOTE Policy: a guaranteed eight-year pathway of study for students; \"team\" delivery by the LOTE specialist with the generalist class teacher; and provision of information technology hardware and software for teacher and student use. School and classroom implementation of the Policy was through semi-specialists visiting and peripatetic teachers delivering communicative-based language and culture programs supported by generalist class teachers as intended by Policy. Reasons for LOTE teachers implementing programs as they did and issues for teachers implementing curriculum change are discussed. This study contributes to an understanding of how LOTE curriculum policy is constructed in practice. It is significant for policy developers who match intended curriculum with operationalised curriculum for evaluation purposes. Conclusions are drawn about the factors influencing teachers' negotiation of the policy implementation process. Recommendations are made regarding further research establishing which policies and practices can assist teachers to continue to meet the challenge of curriculum implementation."
Helicobacter pylori infection and lactose intolerance increase expiratory hydrogen
Creators: name: Schnedl, Wolfgang J.
name: Meier-Allard, Nathalie
name: Schenk, Michael
name: Lackner, Sonja
name: Enko, Dietmar
name: Mangge, Harald
name: Holasek, Sandra J.
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2022
Subjects: irritable bowel syndrome
lactose intolerance
histamine intolerance
diamine oxidase
fructose malabsorption

description: Infection with Helicobacter pylori (H.pylori) may cause dyspepsia and/or unexplained functional nonspecific, gastrointestinal complaints of the irritable bowel syndrome (IBS) spectrum. Hitherto, in H. pylori infected patients with symptoms of the IBS spectrum the occurrence of additional food intolerance/malabsorption is not evaluated. We used a retrospective analysis of charts from 548 patients who presented with gastrointestinal complaints of the irritable bowel syndrome spectrum. An enzyme-linked IgA immunosorbent assay or histologic evaluation of gastric mucosa were used to detect H. pylori infection. A hydrogen breath (H2) test was performed to evaluate fructose malabsorption (FM) and lactose intolerance (LIT). Serum diamine oxidase value of <10 U/ml and a response to a histamine-reduced diet was used to identify histamine intolerance (HIT). We found 293 patients infected with H. pylori, within these were 58 H. pylori patients with LIT, 23 H. pylori LIT patients with FM and 46 H. pylori LIT patients with HIT. Additionally, 13 H. pylori, lactose- and histamine intolerance patients also had FM. The Kruskal Wallis test and pairwise comparison were used to analyze differences of the area under the curve of expiratory hydrogen. In lactose H2 breath tests compared with LIT-only patients, LIT with H. pylori, LIT and H. pylori with HIT, LIT and H. pylori with FM showed significantly higher exhaled H2 levels (p=0.022). Pairwise comparison demonstrated H. pylori infected patients with LIT exhaled more H2 compared to LIT-only (p=0.029). H. pylori with lactose- and histamine intolerance, and H. pylori with lactose-, histamine intolerance and FM compared to H. pylori-only patients indicated a significantly higher occurrence of stomach pain during lactose H2 breath tests (p=0.012 and p=0.005, respectively). We demonstrate that LIT patients with high expiratory H2 levels in lactose breath tests may have H. pylori infection and possibly additional food intolerance/malabsorption. Subsequently, besides H. pylori eradication, a dietician is necessary for an individually tailored reduction- or exclusion diet of symptom triggering food components.
description: EXCLI Journal; 21:Doc426; ISSN 1611-2156
Additional file 1 of Human endometrium-derived stem cell improves cardiac function after myocardial ischemic injury by enhancing angiogenesis and myocardial metabolism
Creators: name: Fan, Xuemei
name: He, Sheng
name: Song, Huifang
name: Yin, Wenjuan
name: Zhang, Jie
name: Peng, Zexu
name: Yang, Kun
name: Zhai, Xiaoyan
name: Zhao, Lingxia
name: Gong, Hui
name: Ping, Yi
name: Jiao, Xiangying
name: Zhang, Sanyuan
name: Yan, Changping
name: Wang, Hongliang
name: Li, Ren-Ke
name: Xie, Jun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Additional file 1: Fig. S1. Results from RNA-seq and Protein array. a Heatmap from RNA-seq representing expression levels for differentially expressed genes (DEGs) between hBMSCs and hEMSCs. Red: upregulation; Blue: downregulation. Expression intensity was based on R software analysis of gene expression levels. b Twenty categories with significant enrichment were screened for functional enrichment analysis of gene ontology (GO). Yellow line: Number of genes. Bars: Significance level. c Heatmap showing up- and down-regulation for DEGs in hBMSCs and hEMSCs related to angiogenesis. d Venn diagram and protein array analysis between hBMSCs and hEMSCs for DEGs. Black circle in Venn diagram represents DEGs related to angiogenesis between hEMSCs and hBMSCs by RNA-seq, while gray circle represents DEGs identified through protein arrays. The intersection of the two circles represents overlapping DEGs between RNA-seq and protein array for angiogenesis, where five angiogenesis-related factors were found, of which PGF and ANG4 were up-regulated in hBMSCs, while FLT-1, TEK (also known as TIE2), and FGF9 were upregulated in hEMSCs. FGF9: Fibroblast growth factor 9; FLT-1: Fms-like tyrosine kinase 1; PGF: Placental growth factor; ANG4: Angiopoietin 4. Table S1. Formulation of Differentiation Media. Table S2. Real-time qPCR primer sets.
The FERRUM project: Transition probabilities for forbidden lines in [FeII] and experimental metastable lifetimes
Creators: name: Gurell, J.
name: Hartman, H.
name: Blackwell-Whitehead, R.
name: Nilsson, H.
name: Backstrom, E.
name: Norlin, L. O.
name: Royen, P.
name: Mannervik, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Accurate transition probabilities for forbidden lines are important diagnostic parameters for low-density astrophysical plasmas. In this paper we present experimental atomic data for forbidden [FeII] transitions that are observed as strong features in astrophysical spectra. Aims: To measure lifetimes for the 3d^6(^3G)4s a ^4G_{11/2} and 3d^6(^3D)4s b ^4D_{1/2} metastable levels in FeII and experimental transition probabilities for the forbidden transitions 3d^7 a ^4F_{7/2,9/2}- 3d^6(^3G)4s a ^4G_{11/2}. Methods: The lifetimes were measured at the ion storage ring facility CRYRING using a laser probing technique. Astrophysical branching fractions were obtained from spectra of Eta Carinae, obtained with the Space Telescope Imaging Spectrograph onboard the Hubble Space Telescope. The lifetimes and branching fractions were combined to yield absolute transition probabilities. Results: The lifetimes of the a ^4G_{11/2} and the b ^4D_{1/2} levels have been measured and have the following values, 0.75(10) s and 0.54(3) s respectively. Furthermore, we have determined the transition probabilities for two forbidden transitions of a ^4F_{7/2,9/2}- a ^4G_{11/2} at 4243.97 and 4346.85 A. Both the lifetimes and the transition probabilities are compared to calculated values in the literature.
description: 5 pages, accepted for publication in A&A
title: Wandering Mussels: using natural tags to identify connectivity matrices amongst Marine Protected Areas
Creators: name: Gomes, Inês
name: Peteiro, Laura G.
name: Albuquerque, Rui
name: Swearer, Steve E.
name: Queiroga, Henrique
Publisher: name: ASC 2014 - Theme session B
Year: 2023
Subjects: Technologies and data
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Understanding connectivity in the marine environment is crucial to describe population dynamics and to develop spatial management strategies. We studied the mussel Mytilus galloprovincialis as a model-species to investigate connectivity patterns within two Portuguese Marine Protected Areas (Berlengas and Arrábida MPAs). By investigating the microchemistry of bivalve larval shells (using laser ablation inductively coupled plasma mass spectrometry LA-ICPMS) we generated a reference map of location-specific-chemical signatures. This atlas was then employed to trace back natal origins of newly settled mussels and build connectivity matrices between populations. According to our results, 3 distinctive chemical signatures were identified, corresponding to 3 regions: Arrábida, Baía de Cascais and Promontório da Estremadura (PERMANOVA; p<0.001). Linear discriminant analyses allowed for a high reclassification success (74%-81% of jackknifed cross-validated cases correctly classified) based on the analysis of 8 trace-elements (B, P, Co, Cu, Zn, Ce, Pb and U). The connectivity matrix allowed the identification of different pathways for mussel larvae, showing a northward prevailing dispersion pattern and distinguishing the Arrábida MPA as an important source population. These direct measures of demographic connectivity can be a powerful tool to inform policy-makers on the conservation and management of ecological coherent networks of protected areas.
Effects of donor-donor interaction on the absorption spectra of shallow donors in silicon
Creators: name: Kuwahara, Ronald Hirokazu
Publisher: name: University of British Columbia
Year: 2011

description: In uncompensated phosphorus or arsenic-doped silicon, observation of the shallow, donor absorption line spectrum for donor concentrations from 10(12) to 2 x 10(18)/cc, yields information about the bound states of the donor electrons and the behavior of the conduction band edge. With increasing concentration, the photon induced IS(A) → 2P(o) and IS(A) → y 2P(±) transition lines are observed to broaden in energy, and shift to slightly lower energies; the lineshapes, Lorentzian at low donor concentrations, become asymmetric with the formation of a tail to the low energy side. A superposed absorption background is observed for donor concentrations greater than 2 x 10(16)/cc. Above 2 x 10(17)/cc an absorption edge in the 10-to-30 meV region with an exponential energy dependence is observed. The change in the absorption line spectrum is due primarily to the final states. The halfwidths of the transitions are well explained by a donor-pair model (or effective hydrogen molecule (Macek, 1971)), with the donor distribution assumed random. The difference in broadening of the 2P(±) level compared to the 2P(o) level is due to the anisotropic effective mass of the donor electron. The transition lineshapes are quantitatively explained in terms of the convoluted Fano function (Bhatia, 1970; Fano, 1962). The Fano parameters Q and T, are interpreted in terms of the evidence for the conduction band tailing and the possible configuration interaction. The integrated absorption coefficient of the line spectrum and the decrease of the absorption cross section above the conduction band threshold with increasing concentration are also accounted for in terms of band tailing. The experimental results are in agreement with the infrared absorption data for antimony-doped germanium (Nisida and Horii, 1969).
Shear Viscosity from Gauss-Bonnet Gravity with a Dilaton Coupling
Creators: name: Cai, Rong-Gen
name: Nie, Zhang-Yu
name: Ohta, Nobuyoshi
name: Sun, Ya-Wen
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the shear viscosity of field theories with gravity duals of Gauss-Bonnet gravity with a non-trivial dilaton using AdS/CFT. We find that the dilaton filed has a non-trivial contribution to the ratio of shear viscosity over entropy density and after imposing causal constraint for the boundary field theory, the new lower bound $4/25π$, obtained from pure Gauss-Bonnet gravity, may have a small violation.
description: 17 pages, no figures, version to appear in PRD
Cyclodextrin-based Gas Chromatography and GC/MS methods for determination of chiral pair constituents in mint essential oils
Creators: name: Chanotiya, Chandan S
name: VS Pragadheesh
name: Yadav, Anju
name: Pankhuri Gupta
name: Lal, Raj K
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: The genus Mentha has been known as culinary source of minty note. Besides, the essential oil imparts value to consumer products like confectionery, cosmetics, and pharmaceutical preparations. A simple and sensitive enantioselective gas chromatographic method is described for the quantitative analysis of terpenoid enantiomers in essential oils using different cyclodextrin coated stationary phases. Limonene, menthone, menthol, and menthyl acetate were identified as pure (-)-enantiomers whereas isomenthone, neomenthol, pulegone, and piperitone as pure (+)-enantiomers in menthol mint, and peppermint oils, respectively. The selectivity of each enantiomer was also demonstrated. A β-cyclodextrin phase with diethyl substitution provides baseline resolution for all target enantiomers with selectivity ranged from 1.004 to 1.050. Moreover, permethylated or diacetylated-β-cyclodextrin showed no selectivity for (+/-)-menthol enantiomers. The current study may facilitate the origin authentication studies of mint oils. Investigation of enantiomers involved in menthol biosynthesis revealed that only (-)-menthol is present in the essential oils of Mentha species.
A MATHEMATICAL MODEL OF TRANSPORT KINETICS OF 99MTC RADIOTRACERS
Creators: name: SHEVTSOVA, Oksana N.
Publisher: name: figshare
Year: 2021
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: The proposed four-compartment mathematical model describes transport kinetics of 99m-technetium radiotracers at intravenous administration process with taking into account radiopharmaceutical accumulation, elimination and radioactive decay. The analytical solution of the model in a form of the well-known sum-of exponential solution was obtained. The dependencies of the tracer concentration versus the time are analyzed. The model can be easily verified by the radioactive tracer concentration data in the circulatory/lymphatic system measured at some time points, and the obtained data can be used to determine the transport coefficients. Time-activity dependencies were obtained and analyzed for each compartment. The model can be used for individual transport parameter calculation at administration of diagnostic/therapeutic dose loads.
A condition that prevents groups from acting nontrivially on trees
Creators: name: Bridson, Martin R
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E08, 20F65

description: We describe a simple criterion for showing that a group has Serre's property FA. By exhibiting a certain pattern of finite subgroups, we show that this criterion is satisfied by Aut(F_n) and SL(n,Z) when n>=3.
description: This is the version published by Geometry & Topology Monographs on 29 April 2008
Deciphering the spin of new resonances in Higgsless models
Creators: name: Alves, Alexandre
name: Eboli, O. J. P.
name: Gonzalez-Garcia, M. C.
name: Mizukoshi, J. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the potential of the CERN Large Hadron Collider (LHC) to probe the spin of new massive vector boson resonances predicted by Higgsless models. We consider its production via weak boson fusion which relies only on the coupling between the new resonances and the weak gauge bosons. We show that the LHC will be able to unravel the spin of the particles associated with the partial restoration of unitarity in vector boson scattering for integrated luminosities of 150-560 fb^-1, depending on the new state mass and on the method used in the analyses.
description: 7 pages, 4 figures. Version published in Physical Review D
title: Selecting indicators for operational assessment of marine ecosystem services
Creators: name: Marzina, Anahita
name: Vanhoutte-Brunier, Alice
name: Davoult, Dominique
name: Guyader, Olivier
name: Laurans, Martial
name: Le Nilliot, Philippe
name: Mongruel, Rémi
Publisher: name: ASC 2014 - Theme session C
Year: 2023
Subjects: Fisheries and aquaculture
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. Coastal zones are the theatre of many human activities and multiple stakes compete in marine ecosystem management. While taking into account complexity of socio-ecological processes, the ecosystem services (ES) approach offers numerous ecological, social and economic indicators to decision-makers. Common theoretical frameworks, typologies of marine ES and indicators have already been developed. However, to improve ES approach contribution to integrated assessments, it is still needed to better understand where efforts - from monitoring to indicator computation - should focus on. A framework is developed to implement ES approach for assessing marine and coastal areas in support of operational management. This methodology combines a synthesis of available knowledge on marine ES and selection of a core set of indicators by experts and stakeholders. Indicators are selected according to aims and scope of assessment, ability of indicators to enlighten practical management objectives and decisions, feasibility of indicator computation and intelligibility to multiple end-users. This participatory approach was applied and discussed in a case study: kelp forest management in Western Brittany. Our results support that ES approach could provide new insights to management debate, when looking for trade-offs between exploitation and conservation issues. Finally, perspectives of this work include integration of such a core set of indicators into spatial explicit ES modeling to test impacts of different management scenarios on Kelp forest ES.
Food for thought : ethics and artificial nutritional support
Creators: name: Breier-Mackie, Sarah Jane
Publisher: name: University Of Tasmania
Year: 2023

description: A narrative ethics analysis is utilised to explore the nature and practice of the provision of artificial nutritional support. This technology is utilised in a variety of settings, with increasing acceptance of its efficacy and utility in health care. The administration of artificial nutritional support was originally intended as a transitory measure to allow for the restoration of a patient's normal digestive functioning. It is now, however, often provided to those who have irretrievably lost all higher brain functioning, people with terminal illness, and those with critical illness. Accordingly, the ethical analysis which is pursued embraces the multidisciplinary nature of the socio-political space which is artificial nutritional support. This modality of treatment has emerged as a site of contested ethics. Some commentators argue that providing nutrition regardless of route is a basic human function, symbolic of care, and constituting 'ordinary means' that should never be forgone. They also suggest that forgoing these techniques directly causes death, and are concerned about the social implications of depriving vulnerable people of basic human attention. Other authors suggest that the burdens of life with pain, discomfort, immobility, impaired consciousness, and loss of communication so overwhelm the benefits of life that there is no obligation to assist in sustaining life. Thus, a dichotomy of views exists. Different perspectives regarding the ethics of artificial nutritional support often depend on the model of health service delivery within which the author operates. Accordingly, research is undertaken which includes data from two distinct health service delivery systems. This research draws upon experience and literature within Australia, the United Kingdom and The United States of America, markedly different health care delivery systems that have been described as either 'socialised' or 'privatised'. This thesis is informed by interviews with 32 participants from diverse heath care disciplines, ranging from Intensivist to Chaplain. Drawing upon the richness of narrative, these interviews utilise the informants as experts from Australia, the United Kingdom and the United States of America. The findings from this research move well beyond the sphere of artificial nutritional support to encompass the practice of medicine and end-of-life care in general. Specifically the case is made for a cycle of care and communication practices, which assist us to debunk death myths regarding the inevitable painful tragedy of death, myths that inform the discursive shaping of contemporary health care.
title: Strategic Environmental Assessments for the Newfoundland and Labrador Offshore Area
Creators: name: Young, Elizabeth
Publisher: name: ASC 2014 - Theme session C
Year: 2023
Subjects: Fisheries and aquaculture
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. The Canada—Newfoundland and Labrador Offshore Petroleum Board (C-NLOPB) is responsible for petroleum resource management in the Newfoundland and Labrador Offshore Area on behalf of the Governments of Canada and Newfoundland and Labrador. The C-NLOPB facilitates the exploration and development of petroleum resources in accordance with statutory provisions. The Board’s regulatory responsibilities include the administration and issuance of licences, authorizations and approvals. Since 2002 the C-NLOPB has been undertaking Strategic Environmental Assessments (SEAs) in offshore areas that have not yet been subject to substantial levels of project-based environmental assessments, but where the issuance of Exploration Licences could be contemplated. The SEAs provide information on the environmental setting and environmental considerations that help to inform subsequent regulatory decisions regarding future offshore oil and gas activities in the area. Information from an SEA assists the C-NLOPB in determining whether exploration rights should be offered, as well as identifying any general restrictive or mitigative measures for application to future projects.
Эволюция образа Севастополя в путеводителях 1930-х и 1950-х годов
Creators: name: Сорока Екатерина Леонидовна
Publisher: name: Zenodo
Year: 2025
Subjects: Севастополь
путеводитель
образ
память
памятник
оборона 1854-1855 гг.
оборона 1941-1942 гг.
Sevastopol
guide
image
memory
monument
defense 1854-1855
defense 1941-1942

description: Аннотация. В статье, на основе путеводителей 1930-х и 1950-х гг., анализируется эволюция образа Севастополя. В довоенных путеводителях он предстает городом героической Обороны 1854–1855 гг. После революции 1917 г. – центром революционного движения («Кронштадта Юга»). В 50-е годы ХХ века произошел переход к более универсальному образу «города двух героических оборон», который сформировался после окончания Великой Отечественной войны.   

Abstract. The article analyzes the evolution of the image of Sevastopol based on guidebooks from the 1930s and 1950s. In pre-war guidebooks, it is presented as a city of the heroic Defense of 1854–1855. After the 1917 revolution, it was the center of the revolutionary movement (“Kronstadt of the South”). In the 1950s, there was a transition to a more universal image of a “city of two heroic defenses,” which was formed after the end of the Great Patriotic War.
TESF South Africa First Engagement Paper
Creators: name: Kulundu-Bolus, I
name: Lotz-Sisitka, H
Publisher: name: Zenodo
Year: 2021
Subjects: Education for Sustainable Development, Education for Sustainable Futures, South Africa

description: The TESF South Africa First Engagement Summary is a companion piece to the South African Background paper. The Background Paper provides a wider profile of the systemic issues facing South Africa that need to be considered in order to transform education towards sustainable futures. This paper outlines the insight gained from our first engagement with a wide range of stakeholders, practitioners, activists and researchers. They added their thoughts and experiences to the overall framing of the project and in doing so deepened our understandings of the power and potential that this project could generate in the South African context.
title: Multispecies reference points for a three species system with a predator and two prey species in the Baltic Sea
Creators: name: Niclas Norrström, Michele Casini
name: Holmgren, Noé
Publisher: name: ASC 2014 - Theme session C
Year: 2023
Subjects: Fisheries and aquaculture
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. Studies have shown that maximizing the total yield in a multispecies system isn’t desirable since it will enforce fishing solely on the lowest trophic levels (Gislason, 1999). An economic maximal yield can benefit the inclusion of top predatory species in the catches, but is with variable fish market values difficult to analyze . An alternative approach is of the aggregate surplus production models in mixed fisheries (Fogarty et al. 2012). We have developed a method to calculate the integrated reference points for three species via an analysis of the spawning stock biomasses at maximum sustainable yields (BMSY). The model is parameterized to describe the Baltic Sea with only three species constituting the main resources for the fisheries; cod Gadus morhua, herring Clupea harengus and sprat Sprattus sprattus. By analyzing how the BMSYs vary for different abundances of prey and predator we find a point where each species produces maximum sustainable yields (MSY) given the spawning stock biomass (BMSY) of the other species. This approach maintains the productivity on both trophic levels.
How Does Radio AGN Feedback Feed Back?
Creators: name: De Young, David S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radio AGN feedback is often assumed to work, but detailed physical models of this process are not well developed. This paper examines a possible path for radio AGN feedback to heat the gas in and around galaxies and perhaps suppress star formation. Nearby radio AGN are almost all FR-I radio galaxies, and it is argued that such outflows become decelerated and fully turbulent in their early stages. A 3D non-linear MHD turbulence calculation is made to determine the time required for this outflowing turbulent energy to be converted into heat. Using radio and x-ray observations of nearby FR-I AGN for normalization results in a time for the onset of heating of about 100 million years. This is comparable to the gas cooling times in and around galaxies, and the resulting location of heat deposition is consistent with FR-I outflows.
description: 33 pages, 4 figures. To be published in Astrophysical Journal
Coherence, progression, and pathways in NCEA Mathematics and Statistics: Participation and achievement data analysed by school deciles, 2013-2019
Creators: name: Howell, Sarah
Publisher: name: figshare
Year: 2021
Subjects: subject: 130303 Education Assessment and Evaluation
subject: FOS: Educational sciences
subject: 130208 Mathematics and Numeracy Curriculum and Pedagogy

description: Mathematics education plays an important role in social justice and equity. Access for all students to a coherent mathematics education that supports progression and pathways to future learning is crucial for reducing inequities in education. The National Certificate of Education Achievement [NCEA] was introduced to recognise a wider range of achievement and decrease inequity in educational outcomes. However, concerns have been raised that it has not achieved these goals. The overall goals of this study were, first, to develop an understanding of which NCEA achievement standards support progression and future pathways in Mathematics and Statistics; second, to analyse by school decile (which acts as a proxy for the socio-economic status of the communities that schools draw from) the patterns of participation and achievement in these NCEA standards between the implementation of these New Zealand Curriculum [NZC] aligned standards in 2013 until 2019. This is predominantly a quantitative research methods study with an initial qualitative component which established the evaluative framework of key standards for progression and future pathways used for the quantitative analysis. The research finds that there has been a decline in participation in many of the key standards in Mathematics and Statistics from 2013-2019, raising concerns about equity of opportunities and whether students are best prepared for progression and future pathways. Analysis by school decile confirms concerns about inequities for low socio-economic students. This study’s findings have implications for students’ progression and future pathways and for policy and professional development for teachers as the NCEA Change Package is implemented over the next few years.
Preparation for commissioning the triumf magnet
Creators: name: Friesen, Errol Lane
Publisher: name: University of British Columbia
Year: 2011

description: This report examines some of the work that has been done in preparing for the shimming and subsequent trimming involved in commissioning the TRIUMF magnet. A series of experiments was done to determine the exact changes in the average field and in the focusing properties resulting when different sizes of shims were placed at various positions on the pole piece. The components of the focusing changes were broken down, using a linear approximation, so as to examine the factors causing them. In order to facilitate shimming, a computer program was developed which used this data to predict the amount of steel to be placed at each position on the magnet pole piece in order to give the best improvement to both the average field and the focusing. This program was tested on a 10:1 model and found to reduce errors in the average field to 20% of the original after two iterations, at the same time improving the focusing, although it tended to break down at significant spiral angels when large corrections were required. The cause for this breakdown was indicated and an improvement procedure recommended. Finally, a series of experiments, using a computer program, were made to determine the trim coil capacities that would be needed. It was found that these capacities were significantly lower than had previously been expected.
Electrophilic substitution of five-membered heterocyclic compounds : electrophilic substitution of the phenyl-1,2,4-triazoles : synthetic studies of some [beta]-triketones
Creators: name: Blackman, Adrian John
Publisher: name: University Of Tasmania
Year: 2023

description: The action of most common oxidising agents on 1,2,4- triazoline -3 -thione leads to ready cleavage of the C-S bond to yield 1,2,4-triazole. Prior to this work no 1,2,4-triazole - 3 -sulphonic acids had been reported. Several oxidative methods have been developed which yield 1,2,4-triazole -3 -sulphonic acid; of these chlorine oxidation is the most convenient. A literature survey of the oxidation of heterocyclic thiols and thiones has been made. Syntheses of substituted 1,2,4- triazoline -3 -thiones have been reviewed. Thirty monosubstituted 1,2,4-triazoline -3 -thiones as well as several disubstituted 1 1 2,4-triazoline-3-thiones, 1,2 1 4- triazolidine -3,5 -dithiones, di -(1,2,4-triazoline -3-thiones), and fused ring 1,2,4-triazoline -3 -thiones have been prepared. Chlorine oxidation of all these compounds has been investigated. In most cases the corresponding sulphonyl chlorides were formed initially, and these were then hydrolysed to the sulphonic acid or converted to the sulphonamide. Approximately thirty acids and fifteen amides were prepared in this way. With certain 2-substituted 1,2,4-triazoline -3 -thiones no sulphonyl chlorides nor sulphonic acids could be isolated, while with certain substituents in the 4-position the intermediate sulphonyl chlorides were formed but could not be converted into the corresponding sulphonic acids. Bromine oxidation of several monosubstituted 1,2,4- triazoline -3 -thiones also yielded the corresponding sulphonic acids though yields were very poor for the parent thione.
Subproduct systems
Creators: name: Shalit, Orr
name: Solel, Baruch
Publisher: name: arXiv
Year: 2009
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L55; 46L57; 46L08; 47L30

description: The notion of a subproduct system, a generalization of that of a product system, is introduced. We show that there is an essentially 1 to 1 correspondence between cp-semigroups and pairs (X,T) where X is a subproduct system and T is an injective subproduct system representation. A similar statement holds for subproduct systems and units of subproduct systems. This correspondence is used as a framework for developing a dilation theory for cp-semigroups. Results we obtain: (i) a *-automorphic dilation to semigroups of *-endomorphisms over quite general semigroups; (ii) necessary and sufficient conditions for a semigroup of CP maps to have a *-endomorphic dilation; (iii) an analogue of Parrot's example of three contractions with no isometric dilation, that is, an example of three commuting, contractive normal CP maps on B(H) that admit no *-endomorphic dilation (thereby solving an open problem raised by Bhat in 1998). Special attention is given to subproduct systems over the semigroup N, which are used as a framework for studying tuples of operators satisfying homogeneous polynomial relations, and the operator algebras they generate. As applications we obtain a noncommutative (projective) Nullstellansatz, a model for tuples of operators subject to homogeneous polynomial relations, a complete description of all representations of Matsumoto's subshift C*-algebra when the subshift is of finite type, and a classification of certain operator algebras -- including an interesting non-selfadjoint generalization of the noncommutative tori.
description: The assertion from version 2 that every subproduct system over N^k can be embedded in a product system is false - we provide a counter example. The corollaries of that assertion stating the existence of dilations of k-tuples of CP maps are removed. An example of 3 commuting CP maps of arbitrarily small norm that have no dilation is added. 63 pages
title: The Gulf of Cadiz first steps towards its Integrated Ecosystem Assessment
Creators: name: M, Llope
name: F, Baldó
name: MJ, Bellanco
name: GF, Carvalho-Souza
name: C, González
name: MA, Torres
Publisher: name: ASC 2014 - Theme session C
Year: 2023
Subjects: Fisheries and aquaculture
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. i) Outflow of Mediterranean water on the bottom (Fig. 2). ii) Wi d di ( li l ) Figure 2. Bottom salinity field showing the Mediterranean water flow into the GoC through the Strait of Gibraltar. http://www.seadatanet.org Figure 1. Mediterranean Sea, Black Sea and Gulf of Cadiz (rectangle). NASA. ii) Wind-driven (westerlies vs. levanters) upwellings at the surface (Fig. 3). iii) Guadalquivir estuary and adjacent marine zones are important nursery areas (Fig. 4). iv) Retention cell off the Guadalquivir estuary due to regional circulation (Fig. 4). v) Guadalquivir river influence (Fig. 5).
Gravitational energy and conserved currents in general relativity
Creators: name: Keefer, Bowie Gordon
Publisher: name: University of British Columbia
Year: 2011

description: The problem of the definition of gravitational energy is reconsidered. In the Einstein theory all matter and fields except gravity must have a well defined local distribution of energy that is described by the energy-momentum tensor. A gravitational "energy-momentum complex" may be defined in analogy to an energy-momentum tensor. However there is an infinite number of expressions for the gravitational complex, and each expression must depend explicitly upon the choice of reference system. Following a review of earlier works, a study is made of physical and geometric considerations which might select usefully distinguished gravitational complexes and reference frames. This investigation is conducted within the vierbein formulation of general relativity. Conserved currents corresponding to generalized energy, momentum and spin are derived from action principles. These currents transform as vector densities under general coordinate transformations, but depend on the vierbein frame chosen. The expressions for the energy and momentum currents are not unique, as their general expression contains three arbitrary constants. Physical examples are ised to test possible choices of these constants and possible vierbein frames. The generalized vierbein energy and momentum currents are calculated for asymptotically flat, radiative space-times. The physical requirements that the energy of an isolated system cannot increase when there is no incoming radiation, and that there, be invariance under vierbein transformations respecting boundary conditions appropriate to the asymptotic symmetry group, are imposed on the generalized energy integral. These requirements determine a unique expression for the energy current which contains no second order field derivatives. Since the boundary conditions do not specify the vierbein frame everywhere, the distribution of gravitational energy is not well defined even when the concept of total energy is made legitimate by asymptotic space-time symmetry. It has been conjectured repeatedly that a local density of gravitational energy could be defined even in the absence of space-time symmetries through a suitable choice of gravitational complex and of reference frame. This is certainly attainable in a formal sense, as invariant vierbein frames are defined by the principal directions of the curvature tensor and of the energy-momentum tensor-of matter. It is shown by the consideration of gravitational radiation fields that such definitions will not suffice to localize gravitational energy.
Structural Properties of Pseudo-Bulges, Classical Bulges and Elliptical Galaxies: an SDSS Perspective
Creators: name: Gadotti, Dimitri A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed 2D bulge/bar/disc decompositions using g, r and i-band images of a representative sample of nearly 1000 galaxies from the Sloan Digital Sky Survey. We show that the Petrosian concentration index is a better proxy for bulge-to-total ratio than the global Sersic index. We show that pseudo-bulges can be distinguished from classical bulges as outliers in the Kormendy relation. We provide the structural parameters and distributions of stellar masses of ellipticals, classical bulges, pseudo-bulges, discs and bars, and find that 32 per cent of the total stellar mass in massive galaxies in the local universe is contained in ellipticals, 36 per cent in discs, 25 per cent in classical bulges, 3 per cent in pseudo-bulges and 4 per cent in bars. Pseudo-bulges are currently undergoing intense star formation activity and populate the blue cloud of the colour-magnitude diagram. Most (though not all) classical bulges are quiescent and populate the red sequence of the diagram. Classical bulges follow a correlation between bulge Sersic index and bulge-to-total ratio, while pseudo-bulges do not. In addition, for a fixed bulge-to-total ratio, pseudo-bulges are less concentrated than classical bulges. Pseudo-bulges follow a mass-size relation similar to that followed by bars, and different from that followed by classical bulges. In the fundamental plane, pseudo-bulges occupy the same locus as discs. While these results point out different formation processes for classical and pseudo-bulges, we also find a significant overlap in their properties, indicating that the different processes might happen concomitantly. Finally, classical bulges and ellipticals follow offset mass-size relations, suggesting that high-mass bulges might not be simply high-mass ellipticals surrounded by discs.
description: Accepted for publication in MNRAS after minor revision; 24 pages, 21 figures, 4 tables; new Appendix A describes tests to fits' robustness; high resolution version available as PDF file at http://www.mpa-garching.mpg.de/~dimitri/sdss1.pdf
Women in primary school leadership in Otago in the 21st century : their skills, attitudes and values
Creators: name: Bamford, Wendy
Publisher: name: University Of Tasmania
Year: 2023

description: This study collects the personal experiences of Otago female principals and examines the leadership qualities they bring to the principalship. These qualities are compared to qualities seen as essential for 2 1 st century leaders. The study also looks into the barriers and support structures women have encountered and reviews the status of women in the profession today. Based on this data the investigator presents a summary of the advice offered to aspiring leaders of primary schools. Attention is given to the influence of 'Tomorrow's Schools' and the conflicts that may exist in primary school leadership for women. An overview of the principalship is provided, presenting the desired skills and roles of a successful principal for the 21st century. Women in the principalship are examined to use women's voice to share their career paths and leadership styles focusing on relationships, communication, use of power, and leadership priorities. Their barriers and support systems are analysed and reasons as to why women are not represented in leadership roles proportional to their representativeness in the teaching profession are explored. The study also goes further to discuss what intervention strategies are effective in changing the situation and how more women can be encouraged to become primary principals of larger schools in New Zealand. A qualitative research design was employed which included grounded theory, questionnaires and interviews. Triangulation of the findings for this investigation was achieved by incorporation of questionnaires, interviews and Education Review Office reports. While the findings were specific to the principals studied, this investigation provides an opportunity to learn of their leadership strategies, struggles and successes. The women also share their visions, reflections and advice to other women who may already be leaders of schools or may be considering becoming a leader for the 21st century. A closer examination of females in leadership in primary schools reflects that they see being a principal as an integral part of who they are and not separate from them. They utilize many strategies needed for effective principalship in a time when the knowledge drive and global interconnections make this position a very demanding one. The increased awareness that this study offers leads to the improvement of the self knowledge and confidence of female school leaders to lead their schools in their own way and successfully meet the demands of the profession both personally and professionally.
On the geometry and quantization of symplectic Howe pairs
Creators: name: Balleier, Carsten
name: Wurzbacher, Tilmann
Publisher: name: arXiv
Year: 2009
Subjects: subject: Symplectic Geometry (math.SG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary: 53D20, 53D50. Secondary: 17B08, 32Q15, 57S15

description: We study the orbit structure and the geometric quantization of a pair of mutually commuting hamiltonian actions on a symplectic manifold. If the pair of actions fulfils a symplectic Howe condition, we show that there is a canonical correspondence between the orbit spaces of the respective moment images. Furthermore, we show that reduced spaces with respect to the action of one group are symplectomorphic to coadjoint orbits of the other group. In the Kaehler case we show that the linear representation of a pair of compact Lie groups on the geometric quantization of the manifold is then equipped with a representation-theoretic Howe duality.
description: 17 pages