cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Using electrical conductivity and temperature mapping to locate zones of groundwater discharge in the South Nation River, eastern Ontario
Creators: name: Kingsley, Janet Elizabeth
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Geology.
subject: Geophysics.
subject: Hydrology.

description: Groundwater-surface water interactions (GSWI's) interactions are an important part of understanding the hydrological cycle, groundwater and river systems, and in providing estimates of groundwater contributions to rivers (base flow). Seepage/leakage of groundwater into surface waters can be measured directly, but this is very labor-intensive, and therefore not feasible at the scale of a basin. An alternative method, which was used in this study, infers groundwater seepage from electrical conductivity and temperature (EC& T) of water at the bottom of the river, based on the assumption that there is a contrast between the incoming groundwater and the river water (which is almost always the case). Zones of groundwater seepage were confirmed and quantified using open-top seepage meters. The results were then used to obtain an integrated baseflow and compared to baseflow found from graphical hydrograph separation techniques. Baseflow estimates, using the two methods, were similar. The methodology in this study proved useful in detecting groundwater seepage, but it was also efficient at pinpointing sources of local high EC loading in the river. This can therefore be an extremely valuable tool in the watershed management. The level of detail proved by this method is extremely useful in many GIS-based applications, including the assessment of susceptibility of an aquifer to contamination, the understanding of a river ecosystem, flood protection and control and groundwater modeling exercises.
title: Seno cavernoso: anatomía y patología.
Creators: name: Lecumberri Cortes, Gonzalo
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: CT
subject: MR
subject: Neuroradiology brain
subject: Head and neck

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
El seno cavernosocontiene estructuras neurovasculares de vital importancia,
el objetivo de esta presentación es conocer la antomía y describir los hallazgos de la patología más...
An assessment of mercury and its dietary drivers in fur of Arctic wolves from Greenland and High Arctic Canada
Creators: name: Gräff, Thomas
name: Sinding, Mikkel-Holger S.
name: Czirják, Gábor Á.
name: Treu, Gabriele
Publisher: name: My University
Year: 2022

description: Mercury has become a ubiquitous hazardous element even ending up in pristine areas such as the Arctic, where it biomagnifies and leaves especially top predators vulnerable to potential health effects. Here we investigate total mercury (THg) concentrations and dietary proxies for trophic position and habitat foraging ((delta)15N and (delta)13C, respectively) in fur of 30 Arctic wolves collected during 1869-1998 in the Canadian High Arctic and Greenland. Fur THg concentrations (mean +/- SD) of 1.46 +/- 1.39 (micro)g g -1 dry weight are within the range of earlier reported values for other Arctic terrestrial species. Based on putative thresholds for Hg-mediated toxic health effects, the studied Arctic wolves have most likely not been at compromised health. Dietary proxies show high dietary plasticity among Arctic wolves deriving nutrition from both marine and terrestrial food sources at various trophic positions. Variability in THg concentrations seem to be related to the wolves' trophic position rather than to different carbon sources or regional differences (East Greenland, the Foxe Basin and Baffin Bay area, respectively). Although the present study remains limited due to the scarce, yet unique historic study material and small sample size, it provides novel information on temporal and spatial variation in Hg pollution of remote Arctic species. © 2022 The Authors
Substructures in WINGS clusters
Creators: name: Ramella, M.
name: Biviano, A.
name: Pisani, A.
name: Varela, J.
name: Bettoni, D.
name: Couch, Warrick
name: D'Onofrio, M.
name: Dressler, A.
name: Fasano, G.
name: Kjærgaard, P.
name: Moles, M.
name: Pignatelli, E.
name: Poggianti, B. M.
Publisher: name: Swinburne
Year: 2024

description: We search for and characterize substructures in the projected distribution of galaxies observed in the wide field CCD images of the 77 nearby clusters of the WIde-field Nearby Galaxy-cluster Survey (WINGS). This sample is complete in X-ray flux in the redshift range 0.04
Chronic sleep deprivation and gender-specific risk of depression in adolescents: a prospective population-based study
Creators: name: Conklin, Annalijn
name: Yao, Christopher A.
name: Richardson, Christopher G.
Publisher: name: BioMed Central
Year: 2018

description: Background: Chronic exposure to sleep deprivation may increase the risk of depression in young people who are particularly vulnerable to changes in sleep and mental health. Sleep deprivation and incident depression may also differ by gender. We investigated the prospective association between cumulative sleep deprivation and subsequent levels of depressive symptomatology among adolescents from a gender perspective. Methods: A longitudinal study of 3071 young people in the British Columbia Adolescent Substance Use Survey (BASUS) cohort with three sleep time and two depression measures over 12 months (2011–12). Multivariable linear regression models with interaction terms estimated gender-specific associations between self-reported chronic sleep deprivation and changes in depressive symptomatology; post-estimation analysis calculated adjusted mean depression scores for each level of cumulative sleep deprivation. Results: Cumulative sleep deprivation was associated with a monotonic increase in depression scores at follow-up in young women, but no consistent pattern was seen in young men. During follow-up, 15% of young women were chronically sleep deprived and 29% were depressed (CESD ≥24). Young women reporting chronic exposure to sleep deprivation had higher CESD scores at follow-up (21.50 points, [CI95 19.55–23.45]), than those reporting no history (16.59 [15.72–17.45]); that remained after multivariable adjustment (19.48 [17.59–21.38]). Conclusion: Results suggested that chronic sleep deprivation increases the risk of major depression among young women. Mental health promotion for young people should include relevant strategies to ensure young women can achieve recommended amounts of sleep.
title: ¿Cómo suena la RM cardiaca?
Creators: name: Vilaplana López, Alejandra
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: MR
subject: Cardiac
subject: Education

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
A muchos residentes de Radiodiagnóstico la RM cardiaca les suena a chino. Nuestro objetivo es hacer ver la importancia de aprender RM cardiaca en los primeros años de residencia,
y marcar sus principales hitos,
ya que es una técnica fácilmente...
La justice au service de l'État: Le cas des fils de famille et des faux-sauniers en Nouvelle-France entre 1723 et 1749
Creators: name: Paul, Josianne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: History, Canadian.

description: Les historiens étudiant la justice française du XVIII e siècle présentent généralement la justice retenue, c'est-à-dire l'ensemble des prérogatives du Roi lui permettant de rendre personnellement justice, comme un symbole de l'autorité paternelle du souverain. Ainsi, le Roi, tel un père de famille, était responsable de maintenir un certain équilibre social. En réalité, l'utilisation de la justice retenue avait un spectre d'action qui dépassait largement le simple cadre judiciaire. L'exemple des fils de famille et des faux-sauniers exilés par lettre de cachet en Nouvelle-France démontre que la justice personnelle du Roi n'avait pas seulement pour objectif le maintien de la paix sociale, puisque leur exil n'était pas le résultat de l'exécution d'une sentence mais bien l'expression d'une volonté politique du souverain. En employant les lettres de cachet et en passant outre les procédures judiciaires ordinaires, les privilèges du Roi en matière de justice ont été utilisés pour atteindre un tout autre objectif. L'examen de la correspondance officielle, des registres d'État civil, des témoignages personnels et des actes notariés concernant les fils de famille et les faux-sauniers envoyés par lettre de cachet en Nouvelle-France révèle que la justice retenue a été utilisée pour servir les politiques coloniales de l'État. Un processus administratif efficace a été mis en place pour faciliter le transfert vers les colonies d'individus touches par la justice retenue du roi. En se servant des lettres de cachet pour fournir un apport continu de nouveaux colons à la Nouvelle-France, l'administration royale voulait améliorer la productivité de la colonie afin de faire prospérer la métropole. L'expérience s'est révélée être un échec dans le cas des fils de famille et un succès relatif dans le cas des faux-sauniers. L'étude de l'utilisation des lettres de cachet en Nouvelle-France ouvre donc de nouvelles pistes de réflexion sur le fonctionnement et l'utilisation de la justice retenue à l'époque moderne. Celle-ci démontre que l'arbitraire royal en matière de justice n'était peut être pas aussi absolu et répressif que certains ont bien voulu le croire, tout en apportant une meilleure compréhension de la sociabilité coloniale et de l'immigration vers la Nouvelle-France au cours du XVIIIe siècle.
title: El valor de la radiografía de tórax: lo que nos enseña. 3. Hueso.
Creators: name: Gómez Rebollo, Celestino
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Thorax

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
En la interpretación de la radiología de tórax es importante adoptar una sistemática exhaustiva de lectura para que no pasen desapercibidos o se infravaloren hallazgos que influyan en el diagnóstico del paciente. Esa correcta interpretación...
Collagen biomaterials for the delivery of FVIII-producing blood outgrowth endothelial cells in the treatment of Haemophilia A
Creators: name: Arzhangi, Zahra S
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011
Subjects: subject: Biology, Molecular.

description: In this thesis, we describe the fundamental aspects to the development of molecularly-defined tailor-made scaffolds for the delivery of FVIII-expressing endothelial cells in the treatment of Haemophilia A. In particular, scaffolds prepared by chemical crosslinking of type I collagen, and growth factor incorporation is discussed. The general strategy was to prepare tailor-made biomaterials as a specific microenvironment to enable cells to produce FVIII and secrete this coagulation factor into the blood stream. As an initial step, pure materials of known concentrations were combined to develop two forms of collagen scaffolds: an injectable hydrogel that may be formed in situ in the presence of cells and a capsule into which the cell-housing hydrogel can be injected. Next, scaffolds were crosslinked using natural- genipin- and synthetic- carbodiimide (EDC)- chemicals. Crosslinking resulted in collagenase-resistant scaffolds. The tissue response to scaffolds was evaluated following subcutaneous implantations in mice. Crosslinked scaffolds maintained their integrity and supported the formation of new extracellular matrix and neovascularization during tissue remodeling. Collagen scaffolds loaded with fibroblast growth factor 2 significantly enhanced FVIII production during long-term encapsulation. Potential applications of these scaffolds for ischemic models are discussed in more detail.
title: La hipertensión arterial secundaria de causa abdominal: qué tenemos que decir los radiólogos
Creators: name: Mollinedo, Diana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Hacer una revisión de los pacientes diagnosticados de hipertensión arterial (HTA) secundaria en nuestro centro durante los últimos 5 años. Explicar las principales causas de HTA secundaria de causa abdominal. Describir e ilustrar los hallazgos...
title: Dispositivos abdominales: qué debemos conocer los radiólogos
Creators: name: Mollinedo, Diana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Hacer una revisión e ilustrar la amplia variedad de dispoditivos médicos abdominales que se pueden encontrar en diferentes estudios radiológicos como radiografías,
ecografías,
tomografías computarizadas (TC) y resonancias magnéticas (RM)....
Mutations in the hypoxanthine phosphoribosyltransferase (hprt) gene in T lymphocytes from arthritis patients and in human B lymphoid cell lines exposed to nitric oxide-donating drugs.
Creators: name: Grant, Donna.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1999
Subjects: subject: Biology, Molecular.

description: There is evidence that nitric oxide (NO), a reactive free radical produced in large quantities by resident synoviocytes, chondrocytes and infiltrating macrophages, is elevated in the synovial fluid and serum of rheumatoid arthritis (RA) patients. Observations within our lab suggest that NO may be capable of causing mutations of significant size, including large-scale deletion (LSD) mutations. Since NO has been shown to cause DNA damage and since genetic changes also occur in the inflamed joints, we hypothesize that NO may participate in the genotoxic environment of RA joints. To determine if LSD mutations contribute to the increase in T cell hprt MF observed earlier, hprt mutant ( hprt-) T cells were isolated from RA patients and screened by multiplex-PCR (MP-PCR) for deletion of hprt exons. To determine if NO is capable of inducing LSD mutations such as those found in RA and OA T cells, two human B lymphoblastoid cell lines (TK6 and WIL2-NS) were exposed to NO-donating drugs and the resulting hprt - clones were examined for hprt LSD mutations by MP-PCR. (Abstract shortened by UMI.)
A spectrophotometric model applied to cluster galaxies: The WINGS dataset
Creators: name: Fritz, J.
name: Poggianti, B. M.
name: Bettoni, D.
name: Cava, A.
name: Couch, Warrick
name: D'Onofrio, M.
name: Dressier, A.
name: Fasano, G.
name: Kjærgaard, P.
name: Moles, M.
name: Varela, J.
Publisher: name: Swinburne
Year: 2024

description: The Wide-field Nearby Galaxy-cluster Survey (WINGS) is a project aiming at the study of the galaxy populations in clusters in the local universe (0.04 < z < 0.07) and the influence of environment on the physical properties of galaxies. This survey provides a high quality set of spectroscopic data for ~6000 galaxies in 48 clusters. The study of such a large amount of objects requires automatic tools capable of extracting as much information as possible from the data. In this paper we describe a stellar population synthesis technique that reproduces the observed optical spectra of galaxies performing an analysis based on spectral fitting of the stellar content, extinction and, when possible, metallicity. A salient feature of this model is the possibility of treating dust extinction as a function of age, allowing younger stars to be more obscured than older ones. Our technique, for the first time, takes into account this feature in a spectral fitting code. A set of template spectra spanning a wide range of star formation histories is built, with features closely resembling those of typical spectra in our sample in terms of spectral resolution, noise and wavelength coverage. Our method of analyzing these spectra allows us to test the reliability and the uncertainties related to each physical parameter we are inferring. The well-known degeneracy problem, i.e. the non-uniqueness of the best fit solution (mass and extinction in different age bins), can be addressed by assigning adequate error bars to the recovered parameters. The values found in this way, together with their error bars, identify the region of parameter space which contains all the possible solutions for a given spectrum. A comparison test was also performed on a WINGS subsample, containing objects in common with the Sloan Digital Sky Survey, yielding excellent agreement. We find that the stellar content as a function of age is reliably recovered in four main age bins and that the uncertainties only mildly depend on the S/N ratio. The metallicity of the dominant stellar population is not always recoverable unambiguosly, depending on the Star Formation History pattern.
Aging of tire and road wear particles in terrestrial and freshwater environments - a review on processes, testing, analysis and impact
Creators: name: Klöckner, Philipp
name: Wagner, Stephan
name: Reemtsma, Thorsten
Publisher: name: My University
Year: 2022
Subjects: Persistenz

description: The environmental fate of tire and road wear particles (TRWPs) receives increasing attention due to the per capita emission volumes of 0.2-5.5 kg/(cap year) and recent reports on the environmental hazard of TRWP constituents. It is expected that aging impacts TRWPs fate in the environment but detailed knowledge is quite limited, yet. Making use of information on tire aging, the available knowledge on environmental aging processes such as thermooxidation, photooxidation, ozonolysis, shear stress, biodegradation and leaching is reviewed here. Experimental techniques to simulate aging are addressed as are analytical techniques to determine aging induced changes of TRWPs, covering physical and chemical properties. The suitability of various tire wear test materials is discussed. Findings and methods from tire aging can be partially applied to study aging of TRWPs in the environment. There is a complex interplay between aging processes in the environment that needs to be considered in future aging studies. In addition to existing basic qualitative understanding of the aging processes, quantitative understanding of TRWP aging is largely lacking. Aging in the environment needs to consider the TRWPs as well as chemicals released. Next steps for filling the gaps in knowledge on aging of TRWPs in the environment are elaborated. © 2021 The Authors
Rebound-Effekte
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2016
Subjects: subject: Rebound-Effekt
subject: Nachhaltige Entwicklung
subject: Energieeffizenz
subject: Nachhaltigkeit | Strategien | Internationales
subject: Waste | Resources

description: In der Praxis zeigt sich oft, dass Einsparungen bei der Ressourceninanspruchnahme geringer als die zuvor berechneten und technisch möglichen Einsparungen ausfallen. Ein Grund dafür sind so genannte Rebound-Effekte. Ein Beispiel: Effizientere Verbrennungsmotoren ermöglichen es, sparsamere Fahrzeuge zu bauen. Direkte Rebound-Effekte entstehen, wenn dann die Motoren leistungsstärker werden oder wenn mit dem sparsameren Fahrzeug mehr gefahren wird. Das Hintergrundpapier konzentriert sich auf Rebound-Effekte bei Energieeffizienzmaßnahmen. Es stellt zunächst dar, welche Rebound-Effekte es gibt und wie sie entstehen. Anschließend erfolgt eine Übersicht über empirische Erkenntnisse zur Höhe von Rebound-Effekten. Abschließend werden Ansätze zur Verringerung oder Vermeidung von Rebound-Effekten vorgestellt. Quelle: https://www.umweltbundesamt.de
description: In der Praxis zeigt sich oft, dass Einsparungen bei der Ressourceninanspruchnahme geringer als die zuvor berechneten und technisch möglichen Einsparungen ausfallen. Ein Grund dafür sind so genannte Rebound-Effekte. Ein Beispiel: Effizientere Verbrennungsmotoren ermöglichen es, sparsamere Fahrzeuge zu bauen. Direkte Rebound-Effekte entstehen, wenn dann die Motoren leistungsstärker werden oder wenn mit dem sparsameren Fahrzeug mehr gefahren wird. Das Hintergrundpapier konzentriert sich auf Rebound-Effekte bei Energieeffizienzmaßnahmen. Es stellt zunächst dar, welche Rebound-Effekte es gibt und wie sie entstehen. Anschließend erfolgt eine Übersicht über empirische Erkenntnisse zur Höhe von Rebound-Effekten. Abschließend werden Ansätze zur Verringerung oder Vermeidung von Rebound-Effekten vorgestellt.
The question of representation in Elizabethan literature.
Creators: name: Wilson, Timothy H.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Theater.

description: The sixteenth century has become a focal point for the analysis of the genealogy of political imperialism. It marks the shift from the medieval to the modern age as manifested in the discovery of the New World, the rise of imperial control and expansion, and the historical construction of the individual subject. My dissertation argues that Sidney, Spenser, and Shakespeare, to some extent, all participate in the "imperial" disposition of modern representational thinking. However, all three authors also offer alternatives to imperial and representational thinking. The first chapter uses Heidegger's conception of the work of art in order to assert that art is not always and only a representational copy of an original. For Heidegger, the work of art is not an imitation of a pre-existing thing, nor is it an epiphenomenon of a system of relations. On the contrary, it first founds these relations. The second chapter analyzes the conception of poiesis which Sidney presents in his Defence of Poesie. In some respects, Sidney's definition is merely a reformulation of the representational one. That is, for Sidney poetry imitates the ideal rather than "brasen" nature. However, in other respects, insofar as he draws on certain formulations of the Italian humanists, Sidney conceives of poiesis as a figuring forth of something for the first time. In the third chapter, I turn to Book I of Spenser's The Faerie Queene. This chapter takes issue with contemporary readings of Spenser which assert that he is our "preeminent poet of empire." I point out that the entire conception of the just and true order of things that is presented in Book I speaks against the assertion of an imperial disposition in Spenser. Finally, in the fourth chapter, I deal with Shakespeare's Hamlet in relation to the Cartesian metaphysics of the subject. In modern metaphysics, the sovereign subject becomes master over existence. I demonstrate the ways in which "The Mouse-trap" figures forth this imperial control over nature that the subject wields. However, I also explore the ways in which it presents a non-representational experience of truth along the lines of the pre-metaphysical experience of a-letheia.
The 2dF-SDSS LRG and QSO Survey: The star formation histories of luminous red galaxies
Creators: name: Roseboom, Isaac G.
name: Pimbblet, Kevin A.
name: Drinkwater, Michael J.
name: Cannon, Russell D.
name: De Propris, Roberto
name: Edge, Alastair C.
name: Eisenstein, Daniel J.
name: Nichol, Robert C.
name: Smail, Ian
name: Wake, David A.
name: Bland-Hawthorn, Joss
name: Bridges, Terry J.
name: Carson, Daniel
name: Colless, Matthew
name: Couch, Warrick
name: Croom, Scott M.
name: Driver, Simon P.
name: Hewett, Paul C.
name: Loveday, Jon
name: Ross, Nic
name: Schneider, Donald P.
name: Shanks, Tom
name: Sharp, Robert G.
name: Weilbacher, Peter
Publisher: name: Swinburne
Year: 2024

description: We present a detailed investigation into the recent star formation histories of 5697 luminous red galaxies (LRGs) based on the Hδa (4101 Å), and [O II] (3727 Å) lines and the D4000 index. LRGs are luminous (L > 3L*) galaxies which have been selected to have photometric properties consistent with an old, passively evolving stellar population. For this study, we utilize LRGs from the recently completed 2dF-SDSS LRG and QSO Survey (2SLAQ). Equivalent widths of the Hδ and [O II] lines are measured and used to define three spectral types, those with only strong Hδ absorption (k+a), those with strong [O II] in emission (em) and those with both (em+a). All other LRGs are considered to have passive star formation histories. The vast majority of LRGs are found to be passive (∼80 per cent); however, significant numbers of k+a (2.7 per cent), em+a (1.2 per cent) and em LRGs (8.6 per cent) are identified. An investigation into the redshift dependence of the fractions is also performed. A sample of SDSS MAIN galaxies with colours and luminosities consistent with the 2SLAQ LRGs is selected to provide a low-redshift comparison. While the em and em+a fractions are consistent with the low-redshift SDSS sample, the fraction of k+a LRGs is found to increase significantly with redshift. This result is interpreted as an indication of an increasing amount of recent star formation activity in LRGs with redshift. By considering the expected lifetime of the k+a phase, the number of LRGs which will undergo a k+a phase can be estimated. A crude comparison of this estimate with the predictions from semi-analytic models of galaxy formation shows that the predicted level of k+a and em+a activities is not sufficient to reconcile the predicted mass growth for massive early types in a hierarchical merging scenario.
The general chapter in a religious institute with particular reference to IBVM, Loreto Branch
Creators: name: Cotter, Elizabeth M
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Religion, General.
subject: Law.

description: The present study charts the evolution of the general chapter, an organ of government that has long historical roots in the Church, one that, as this is the case for IBVM, has proved capable of adjusting and adapting to the demands of life and mission in the modern world. The contemporary understanding of the nature and authority of the general chapter has been influenced by Vatican II's renewed vision of authority as service. In this vision, as is evident from CIC's expression of government in institutes of consecrated life, authority, even within an hierarchical model, is exercised participatively, collaboratively and where possible collegially. However, the general chapter is more than a juridic structure of governance. It is primarily a faith experience whose main task is the union in charity of the members. As a result, prayer and discernment must characterize its participative, collaborative processes. The fusion of IBVM North America with IBVM Irish Branch in 2003 brought together two Institutes whose charism derived from the same source. Despite their common origins, however, the two Institutes understood authority, its expression in proper law and its exercise in key areas such as the general chapter in apparently different ways. This difference was epitomized in 1986 when one Institute adopted the Ignatian Constitutions while the other rejected them because their hierarchical expression of authority was believed to be incompatible with the way women function in the modern world. The experience of IBVM in North America since Vatican II would seem to suggest that participative, collaborative structures (which are described as a more "feminine" approach to government), functioning within an hierarchical system can meet the need for meaningful involvement of members in government. However, this more "democratic" expression of government can open the members to individualism and majoritarianism. The changes made by the Irish Branch in the exercise of government since 1986 provide hope that an inclusive, participative model of government can be accommodated in the new IBVM Loreto Branch. Because consecrated life has an inalienable ecclesial dimension, understanding authority and power and their exercise in institutes of consecrated life has relevance for understanding authority and its exercise in other organs of authority at all levels in the Church.
Sustainable heat pump systems in a transformed energy system based on renewables
Creators: name: Lohse, Christiane
name: Wagener-Lohse, Georg
Publisher: name: My University
Year: 2018
Subjects: Energieszenario
Emissionsminderung
Wirkungsgrad
Wärmepumpe
Umweltauswirkung

description: In a number of studies, the German Environment Agency (UBA) has carried out model calculations on how the heat supply in Germany can become renewable. This paper refers to the GHG reduction scenario of UBA (GreenEe-scenario) which aims at 95% reduction in greenhouse gases by 2050 and a 60% reduction in the use of biotic and abiotic resources. Heat pump systems of different technical specifications, using geo-thermal energy and ambient heat, will then be the central heat supply technologies in the energy system. If the heating requirements of buildings can be reduced by 2/3 by 2050, heat supply is feasible with district heating (with a share of 18%), and heat pump systems (with a share of 76%). In the course of sector inter-connection, renewable electricity is increasingly being used in the low-exergy heat sector. The paper briefly describes the energy consumption of the German buildings sector and highlights the needs to reduce greenhouse gas emissions. A comparative discussion of the UBA study with studies and scenarios from other institutes leads to the identification of the most effective measures to decarbonise the buildings sector in a resource-saving manner. All considerations show that the goal can be achieved primarily with heat pump systems. The paper lists the low temperature heat sources for heat pump systems, and compares their different utilization techniques and the respective energy yield. Technological innovations and the plan-ning processes must be aimed at minimizing negative environmental effects; the protection requirements for the environmental media concerned, such as groundwater and soil, must be met. Heat pump systems must not be used if the implementation results in deterioration of the environmental status. In: Proceedings of ECOS 2018 : the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems / Cost, Optimization, Simulation and Environmental Impact of Energy Systems 31st International Conference on Efficiency Herausgebendes Organ. - Guimarães. - (2018), Paper #408
title: Abwasserdesinfektion
title: Wastewater Disinfection : Comparison of Procedures in Regard to Indicator Organisms
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Abwasserbehandlung
Stadt
Desinfektion
Hygienisierung
Oxidation
UV-Strahlung
Flockung
Ozonung
Versuchsanlage

description: In dem F&E-Projekt "Abwasserdesinfektion" der Berliner Wasserbetriebe und des Umweltbundesamts wurden vier Desinfektionsverfahren für den Ablauf des Klärwerks Ruhleben auf ihre Effektivität getestet. Diese zeigen gegenüber den Indikatorbakterien E. coli und intestinale Enterokokken eine gute Desinfektionswirkung. Für die Elimination der besonders desinfektionsmittelresistenten Parasitendauerstadien erwies sich nur die Behandlung mit der Kombination Mikrosieb plus UV-Bestrahlung als durchgehend effektiv. Teilweise wurde auch mit Ozon eine Reduktion durch die Behandlung erreicht. Die chemische Desinfektion mit Perameisensäure konnte weder für die Viren noch für die Parasitendauerstadien eine ausreichende Reduktion bewirken. Die drei anderen Verfahren zeigten sich hinsichtlich der Elimination von Phagen/Viren prinzipiell geeignet, wobei mit der Ozonung tendenziell die beste Reduktion erreicht wurde. Allerdings muss durch weitere Versuche eine Optimierung erfolgen, da sich die Ergebnisse bei den Behandlungen an den einzelnen Versuchstagen teilweise stark unterschieden. Aufgrund der wenigen untersuchten Proben für humanpathogene Viren sind diese Ergebnisse nur für eine erste Orientierung geeignet. Quelle: http://www.dwa.de
description: In the Berlin Water Operations and German Federal EnvironmentAgency R&D project "Wastewater disinfectionŁ the fourdisinfection procedures for the discharge of the Ruhleben Wastewatertreatment works have been tested for their effectiveness.These indicate a good disinfection effect with regard to the indicatorbacteria E. coli and intestinal enterococci. For the eliminationof the particularly disinfectant-resistant parasite resistantstages only the treatment using the combination micro-strainerplus UV radiation proved itself to be continuously effective. Also,partially, a reduction through the treatment was achievedusing ozone. The chemical disinfection using performic acidcould not effect a sufficient reduction either for the viruses or forthe parasite resistant stages. The three other procedures showedthemselves in principle suitable for the elimination of phages/viruses,in which ozonisation tended to achieve the best reduction.However, an optimisation must take place through further testsas the results with the treatments on the individual test stagesin part vary considerably. Due to the scant number of testedsamples for human pathogenic viruses these results are suitablefor initial guidance only.In:Abwasserdesinfektion : Verfahrensvergleich in Bezug auf Indikatororganismen / Regina Gnirss ... In: Korrespondenz Abwasser, Abfall : KA ; Organ der DWA. - 62 (2015), H. 3, S. 225
The 2df SDSS LRG and QSO survey: Evolution of the luminosity function of luminous red galaxies to z = 0.6
Creators: name: Wake, David A.
name: Nichol, Robert C.
name: Eisenstein, Daniel J.
name: Loveday, Jon
name: Edge, Alastair C.
name: Cannon, Russell
name: Smail, Ian
name: Schneider, Donald P.
name: Scranton, Ryan
name: Carson, Daniel
name: Ross, Nicholas P.
name: Brunner, Robert J.
name: Colless, Matthew
name: Couch, Warrick
name: Croom, Scott M.
name: Driver, Simon P.
name: Da Angela, José
name: Jester, Sebastian
name: De Propris, Roberto
name: Drinkwater, Michael J.
name: Bland-Hawthorn, Joss
name: Pimbblet, Kevin A.
name: Roseboom, Isaac G.
name: Shanks, Tom
name: Sharp, Robert G.
name: Brinkmann, Jon
Publisher: name: Swinburne
Year: 2024

description: We present new measurements of the luminosity function (LF) of luminous red galaxies (LRGs) from the Sloan Digital Sky Survey (SDSS) and the 2dF SDSS LRG and Quasar (2SLAQ) survey. We have carefully quantified, and corrected for, uncertainties in the K and evolutionary corrections, differences in the colour selection methods, and the effects of photometric errors, thus ensuring we are studying the same galaxy population in both surveys. Using a limited subset of 6326 SDSS LRGs (with 0.17 < z < 0.24) and 1725 2SLAQ LRGs (with 0.5 < z < 0.6), for which the matching colour selection is most reliable, we find no evidence for any additional evolution in the LRG LF, over this redshift range, beyond that expected from a simple passive evolution model. This lack of additional evolution is quantified using the comoving luminosity density of SDSS and 2SLAQ LRGs, brighter than M0.2r- 5 log h0.7 = -22.5, which are 2.51 ± 0.03 × 10-7L⊙ Mpc-3 and 2.44 ± 0.15 × 10-7L⊙ Mpc-3, respectively (< 10 per cent uncertainty). We compare our LFs to the COMBO-17 data and find excellent agreement over the same redshift range. Together, these surveys show no evidence for additional evolution (beyond passive) in the LF of LRGs brighter than M0.2r - 5 log h0.7 = -21 (or brighter than ∼L*). We test our SDSS and 2SLAQ LFs against a simple 'dry merger' model for the evolution of massive red galaxies and find that at least half of the LRGs at z ≃ 0.2 must already have been well assembled (with more than half their stellar mass) by z ≃ 0.6. This limit is barely consistent with recent results from semi-analytical models of galaxy evolution.
Interaction of dermatologically relevant nanoparticles with skin cells and skin
Creators: name: Vogt, Annika
name: Rancan, Fiorenza
name: Ahlberg, Sebastian
name: Nazemi, Berouz
name: Choe, Chun Sik
name: Darvin, Maxim E.
name: Hadam, Sabrina
name: Blume-Peytavi, Ulrike
name: Loza, Kateryna
name: Diendorf, Jörg
name: Epple, Matthias
name: Graf, Christina
name: Rühl, Eckart
name: Meinke, Martina C.
name: Lademann, Jürgen
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2014
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: The investigation of nanoparticle interactions with tissues is complex. High levels of standardization, ideally testing of different material types in the same biological model, and combinations of sensitive imaging and detection methods are required. Here, we present our studies on nanoparticle interactions with skin, skin cells, and biological media. Silica, titanium dioxide and silver particles were chosen as representative examples for different types of skin exposure to nanomaterials, e.g., unintended environmental exposure (silica) versus intended exposure through application of sunscreen (titanium dioxide) or antiseptics (silver). Because each particle type exhibits specific physicochemical properties, we were able to apply different combinations of methods to examine skin penetration and cellular uptake, including optical microscopy, electron microscopy, X-ray microscopy on cells and tissue sections, flow cytometry of isolated skin cells as well as Raman microscopy on whole tissue blocks. In order to assess the biological relevance of such findings, cell viability and free radical production were monitored on cells and in whole tissue samples. The combination of technologies and the joint discussion of results enabled us to look at nanoparticle–skin interactions and the biological relevance of our findings from different angles.
Design and realization of a 24 GHz receiver front-end in integrated quasi-planar technique.
Creators: name: Gagnon, André.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1990
Subjects: subject: Engineering, Electronics and Electrical.

description: This thesis describes the design, realization and testing of an integrated millimeter wave receiver front-end in E-plane configuration. In particular, the combination and integration of a balanced mixer, two filters, and a local oscillator stabilized by a dielectric restorator are described. The following is a brief description of those three major components that constitute the receiver front-end. The heart of the mixer is a classical 180 degrees hybrid junction formed by the juxtaposition of unilateral fin-line and coplanar waveguide. Matching of the RF signal to the diodes is critical for good conversion loss. The receiver contains two filters. In order to ensure compatability with the mixer, the 24 GHz local oscillator was realized in such a way that the FET was also situated in the E-plane. The components have been realized on 10 mils thick RT-Duroid 5880 (dielectric constant $\in\sb{\rm r}$ = 2.22) suspended in the E-plane of a WR-42 waveguide. The receiver incorporates a 24.0 GHz oscillator (LO) and accepts an input radio frequency signal (RF) at 24.4 GHz with a bandwidth of 500 MHz. (Abstract shortened by UMI.)
title: An Analysis of Information Management at the School Level in Malawi: A Case of Lilongwe Primary Schools
Creators: name: Kimura, Hatsue
Publisher: name: University of Massachusetts Amherst
Year: 2005
Subjects: subject: Education

description: Information can provide a guide and direction for action. Educational Management Information Systems (EMIS) in Malawi was established in 1986 to generate quality information for planning, policy formation, and decision-making. Despite many efforts to improve EMIS, Malawi stills struggles to have good information. One of the challenges rests on making schools play their roles effectively, as the major source of data for EMIS in these efforts. The purpose of this study was to describe the information management in primary schools in Malawi, using survey research. The study analyzed information management at the school level by focusing on data collection, record keeping, data communication, and information use. The approach to thus study involved survey research at the school level and qualitative research at district level. The study revealed that the documents which teachers regularly updated were those that are required. As for record-keeping practice at school level, the factor of rural and urban location influenced the updating of class registers. There was no difference on updating of class register based on other demographic factors of teachers, such as sex, qualifications, and teaching experience. The study also found that data collection of complementary and relevant data is not very effective. No practice influenced the updating of the data at school level.
Tensile behaviour and energy absorption of thin-walled tubes with origami patterns
Creators: name: Zhang, Xinyi
Publisher: name: Swinburne
Year: 2024

description: This study explores the deployment behavior and energy absorption performance of origami-based thin-walled tubes, known as origami bellows, under axial tension. The investigation is carried out through numerical simulations, theoretical analysis, and experimental validation. Various deformation processes of origami bellows with different geometries are simulated, and analytical models for mean tensile force are developed based on the observed deformation mechanisms. The potential applications of origami bellows include serving as flexible joints for pipelines that need to accommodate movement caused by seismic activity or blast loading, safety ropes for mitigating falling accidents, and arresting cables for aircraft carriers.
Responses of re-entrant cylindrical tubes under internal loading
Creators: name: Chiang, Harold Tien Shi
Publisher: name: Swinburne
Year: 2024

description: Re-entrant honeycomb core, which are a variation of the honeycomb in the shape of an hourglass, are part of the auxetic family which provides elevated energy absorption capabilities and structural strength. This thesis focuses on converting a flat plane re-entrant honeycomb core to a cylindrical tube. It examines the strengths and weaknesses of using re-entrant honeycomb core in a cylindrical tube, manufactured via 3D printing. Experimental testing employs an umbrella mechanism to simulate internal loading, validated by virtual simulations using ABAQUS and analytical modeling. Showing promise for integrity improvements to real-life cylindrical structures and builds.
Decreased telomere length in the small airway epithelium suggests accelerated aging in the lungs of persons living with human immunodeficiency virus (HIV)
Creators: name: Xu, Stella
name: Vucic, Emily A.
name: Shaipanich, Tawimas
name: Lam, Stephen
name: Lam, Wan
name: Montaner, Julio
name: Sin, Don D.
name: Man, S. F. P.
name: Leung, Janice M.
Publisher: name: BioMed Central
Year: 2018

description: Human immunodeficiency virus (HIV) infection is associated with an increased risk of chronic obstructive pulmonary disease (COPD) independent of cigarette smoke exposure. Previous studies have demonstrated that decreased peripheral leukocyte telomere length is associated with HIV, suggesting an accelerated aging phenomenon. We demonstrate that this process of telomere shortening also occurs in the lungs, with significant decreases in telomere length observed in small airway epithelial cells collected during bronchoscopy. Molecular evidence of accelerated aging in the small airway epithelium of persons living with HIV may be one clue into the predisposition for chronic lung disease observed in this population.
Tagesreisen im Kontext der Nachhaltigkeit
Creators: name: Zeiner, Manfred
name: Pinnow, Diana
Publisher: name: Umweltbundesamt
Year: 2020
Subjects: subject: Sanfter Tourismus
subject: Fremdenverkehr
subject: Verkehrsmittelwahl
subject: Nachhaltiger Tourismus
subject: Tagesreisen
subject: Reiseverkehr
subject: Modal Split
subject: Wirtschaft | Konsum

description: Rund 3 Milliarden Tagesreisen wurden 2012 in Deutschland unternommen. Inzwischen ist diese Zahl vermutlich sogar noch deutlich angestiegen. Damit sind Tagesreisen das mit großem Abstand größte touristische Nachfragesegment. Wenn es um die Verbesserung der Nachhaltigkeitsbilanz des Tourismus geht, sind dementsprechend alle Maßnahmen wichtig, die in diesem Segment wirken. Da eine Festlegung von Höchstgrenzen für Tagesreisen zur Limitierung der negativen Begleiterscheinungen des Tagestourismus gesellschaftspolitisch nicht opportun ist, stellen qualitative Veränderungen die erfolgversprechendsten Ansatzpunkte dar, um das Ziel der Verbesserung der Nachhaltigkeit im ökonomischen, ökologischen und sozialen Sinne zu erreichen. Ziel dieses Beitrags ist, den Ablauf einer typischen Tagesreise aus Sicht der Nachfragenden darzustellen und dabei wo immer möglich auf Bezugspunkte mit Nachhaltigkeitsaspekten (und konkret den Indikatoren des Projekts) einzugehen. Um zielgerichtete Maßnahmen zur Steigerung der Nachhaltigkeit zu begründen und initiieren zu können, bedarf es dringend eines kontinuierlichen und umfassenden Monitorings (Volumen, Ausgaben und weitere Sachverhalte) aller Tagesreisen ohne Entfernungseinschränkungen. Darüber hinaus sind Anreize an einschlägige Freizeit- und Kultureinrichtungen zu setzen, die sowohl über Förderprogramme als auch über Restriktionen gesteuert werden können. Die An- und Abreise gilt als größter Einflussfaktor im Rahmen integrierter Mobilitätskonzepte. Trotzdem sind Maßnahmen zur Beeinflussung des Modal Split von Tagesreisen vor allem in den Phasen Inspiration, Information und Buchung bislang kaum anzutreffen. Anreize zu Einsparungsmaßnahmen bei Energie, Wasser, Müll sind konsequent weiter zu entwickeln und umzusetzen. Quelle: Forschungsbericht
description: Tagesreisen sind das mit großem Abstand größte touristische Nachfragesegment. Ziel des Themenpapiers „Tagesreisen im Kontext der Nachhaltigkeit“ ist, den Ablauf einer typischen Tagesreise aus Sicht der Nachfragenden darzustellen und dabei - wo immer möglich - auf Bezugspunkte mit Nachhaltigkeitsaspekten einzugehen. Die An- und Abreise gilt als größter Einflussfaktor im Rahmen integrierter Mobilitätskonzepte. Trotzdem sind Maßnahmen zur Beeinflussung des Modal Split von Tagesreisen vor allem in den Phasen Inspiration, Information und Buchung bislang kaum anzutreffen. Anreize zu Einsparungsmaßnahmen bei Energie, Wasser, Müll sind konsequent weiter zu entwickeln und umzusetzen.