cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integrated scenarios of sustainable food production and consumption in Germany
Creators: name: Lorenz, Ullrich
name: Veenhoff, Sylvia
Publisher: name: My University
Year: 2013
Subjects: Konsumverhalten
Nachhaltigkeit
Rechtsordnung

description: Making food production and consumption more sustainable is a highly complex venture, requiring varied policy instruments. While finding an integrated and coherent approach is difficult, the use of strategic foresight might help to fill the gap. This article presents the results of an extensive scenario-building process in which we searched for sustainable solutions regarding food production and consumption in various possible future contexts in Germany. First, so-called context scenarios were formulated to describe different developments beyond the control of the relevant players, but that might have a significant impact on food production and consumption. Second, strategic food scenarios were developed to examine a wide range of sustainable solutions. Finally, the context and strategic food scenarios were merged and assessed to provide policy makers with a helpful ?reality check" on different strategy options and guidance in prioritization. We explain the underlying methodology and, after a brief discussion of the main advantages and limitations of our approach, we draw some conclusions for sustainable food-consumption policy, highlighting the important role of society.
Quelle: http://sspp.proquest.com
Taking Flight : Collecting Baseline Data on Overwintering Bird Species Along the Arbutus Greenway
Creators: name: Alsaiari, Lujain
name: Harvie, Kaitlyn
name: Lichimo, Caitlin
name: Liu, Jenny
Publisher: name: The University of British Columbia
Year: 2025

description: Worldwide, urbanization causes severe declines in bird populations, mainly due to factors such as habitat loss and habitat fragmentation (Seress & Liker, 2015; Travers et al., 2021). This can be detrimental to ecosystems as birds provide many ecosystem services such as nutrient cycling, pollination, gene flow, and pest control, and are therefore often indicators of ecological health (Gaston, 2022; McCloy et al., 2024; Whelan et al., 2008). Fortunately, the establishment of greenspaces and ecological corridors have been shown to support bird diversity in urban areas (Atchison & Rodewald, 2006; Chen et al., 2024; Suhonen et al., 2009). In Vancouver, the Arbutus Greenway — an 8.5 km stretch of paved walking and biking path — has been identified as a potential site for ecological enhancement and as an ideal candidate for an urban ecological corridor (City of Vancouver, 2018). However, the current use of the Arbutus Greenway by overwintering bird species is largely unknown. The objective of this study is to determine which bird species use the Arbutus Greenway as an overwintering habitat. These findings can help inform habitat enhancement and the development of the Greenway into an ecological corridor. We collected data along eight 1 km line-transects along the Greenway from January 8th to February 16th, 2025. Bird observations within 20 m on either side of the transect line were recorded. The relative bird abundance and proportions were calculated and the data was overlaid with land cover classification and land use spatial data provided by the City of Vancouver to determine the relationship between environmental features and bird abundance, species diversity, and community evenness. This data was also made compatible with eBird, an online citizen science platform, to allow for easy access by future researchers. Our results show that land cover composition is an important predictor of bird abundance, diversity, and community evenness. Specifically, areas with higher percent Paved cover had significantly less bird diversity and lower community evenness, while Deciduous cover significantly increased bird diversity and evenness. Percent Building cover and percent Shrub cover had a positive correlation with bird abundance and evenness respectively. In addition, we determined that land use is not an appropriate predictor of bird abundance, diversity, and community evenness. We recommend decreasing the amount of Paved cover and planting more vegetation, particularly shrubs and deciduous trees along the Greenway to promote bird diversity and evenness. We also recommend more investigation into how Coniferous cover and confounding variables such as bird feeders, proximity to water, and noise levels affect bird abundance, diversity, and evenness.
Diagnosing Identity Threat in Emergency Physician Servant Leaders
Creators: name: Wong, Lee Yung
Publisher: name: Swinburne
Year: 2024

description: Emergency physicians lead in an extreme, dynamic work environment. In this context, leaders who are servant-orientated may experience leader identity threat where they are devalued, demeaned or disempowered as leaders who serve others. Participants reported leader identity threat, but only when they were burnt out and less busy at work. They described internal struggles, conflicts with others, and a challenging work culture. Through diagnosing this phenomenon within frontline healthcare professionals, this research highlights the risks that 'failing to lead and serve' poses to their leadership and wellbeing, and calls on healthcare organisations to develop and support their leaders.
title: The Epidemic of the Young: An Overview of the HIV/AIDS Situation and Current Preventive Activities in Uzbekistan
Creators: name: Gafurova, Firuza
Publisher: name: University of Massachusetts Amherst
Year: 2005
Subjects: subject: Education
subject: Health and Physical Education

description: During its more than twenty-year history, HIV/AIDS has taken away millions of lives worldwide. Although at nascent stage, the epidemic is rapidly increasing in the Central Asian region. In Uzbekistan it is mainly driven by injecting drug users. Research shows that the epidemic has already found its way from the concentrated groups to the general population through heterosexual transmission, with more than fifty percent of the infections found among young people. This desk research is found on the extent of the HIV/AIDS epidemic in Uzbekistan, and prevention activities taking place to address the epidemic spread among young people. Chapters 1 and 2 focused on the global picture of the epidemic, factors that exacerbate the spread of HIV, the impact of the epidemic on development and education sectors. Also, it looks at youth as a vulnerable group to the epidemic, and proved justification for the need to focus prevention programs on young people. Chapter 3 linked theoretical background with practical application. Thus, interventions recognized by the international community as best practices in addressing the issues of youth in the context of HIV/AIDS, were discussed. Chapter 4 focused specifically on the epidemic in the context of Uzbekistan, explored the activities and programs taking place in the country to halt the epidemic by the government, local and international organizations. The overview showed that there is not much emphasis on providing the population with information and skills to protect them from the epidemic. Very few initiatives are targeted at youth, who are in the context of Uzbekistan, its economic instability, cultural and religious beliefs, are particularly vulnerable to HIV/AIDS. Concluding thoughts provide some suggestions for opening the dialogue between various stakeholders on designing and implementing programs for young people.
Numerical Investigation of Near-Infrared Laser Photobiomodulation Therapy on Soft Tissues
Creators: name: Chaki, Chironjeet Kumar
Publisher: name: Swinburne
Year: 2024

description: Photobiomodulation (PBM) therapy, using non-ionizing light sources like lasers, offers a non-invasive method for treating conditions such as pain, wounds, and inflammation. This project aims to develop a computational model to simulate light effects in human tissues, focusing on optimizing PBM parameters for better therapeutic outcomes. The research seeks to enhance PBM efficacy, making it more efficient and effective for clinical use.
Inuit youth and ethnic identity change: The Nunavut Sivuniksavut experience
Creators: name: Hanson, Morley
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Education, Sociology of.
subject: Sociology, Ethnic and Racial Studies.

description: Rapid social change in the Canadian Arctic has led to circumstances which make it increasingly difficult for young Inuit to develop and maintain a distinct cultural identity. Inuit, and many other Aboriginal groups in similar circumstances, are looking to education to play a role in cultural maintenance and revitalization. This study explored the experience of Inuit youth in Nunavut Sivuniksavut, a post-secondary program for Inuit youth from Nunavut. The findings indicated that the students experienced positive changes in all areas of ethnic identity, developing attitudes of pride and respect for their culture, an increased sense of belonging to it, an understanding of their cultural history, as well as an understanding of the relationship of Inuit with the majority society. The findings also identified program elements contributing to this change. The study develops a framework for viewing ethnic identity development in other settings and presents a model which describes how students developed a valuing of their cultural distinctiveness in a contemporary context.
The meaning of patient education experiences for adults with limited literacy and chronic illnesses
Creators: name: King, Judy
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Education, Health.

description: There is a direct link between literacy skill level and health. Low literacy skills affect a person's ability to effectively use health services, take medications, and understand other information provided to them regarding their health (Health Canada, 2001). The purpose of this study was to uncover the meaning of patient education experiences for adults living with limited literacy and chronic illnesses. An inductive, interpretive, hermeneutic phenomenological method was used (van Marten, 1997a). A purposeful sample of 14 adults who were attending literacy programs and had chronic illnesses were interviewed. From these interviews, five themes were ascertained: different roles and relationships, living between worlds, language and health care interactions, mismatched expectations, and powerlessness. Adult learning theories helped illuminate how adults with limited literacy and chronic illnesses make meaning of patient education experiences. For the purposes of this study the following adult learning theories were used: Transformational learning theory (Mezirow, 1995), situated cognition theory (Kirshner & Whitson, 1997), and critical theory (Welton, 1995a). This phenomenological study shone a light on the patient education experiences for adults living with limited literacy and chronic illnesses and exposed the meaning of these experiences as one of a shifting in meaning perspective for the participants. This shifting in meaning perspective was a result of their community of practices within their literacy classrooms which allowed them to enhance their literacy abilities. This, in turn, allowed them to confront the barriers within the health care systems that blocked their full engagement with the health care system. Although some of the barriers continued to exist for the participants, they were better able to able to identify and confront them.
Verhaltensökonomische Erkenntnisse für die Gestaltung umweltpolitischer Instrumente
Creators: name: Beckenbach, Frank
name: Daskalakis, Maria
name: Bühren, Christoph
Publisher: name: My University
Year: 2016
Subjects: subject: Energieeffizienz
subject: Haushaltsgerät
subject: Verhaltensökonomik; Energieeffizienz; Politikinstrumente; Stromrechnung; Weiße Ware; Label; Verbrauchskosten; Verhaltensänderung
subject: Nachhaltigkeit | Strategien | Internationales
subject: Sustainability | Strategies | International matters

description: Der Bericht „Verhaltensökonomische Erkenntnisse für die Gestaltung umweltpolitischer Instrumente“ widmet sich folgender zentraler Fragestellung: Wie können umweltökonomische Instrumente verhaltensbasiert so gestaltet werden, dass sie effektiver als bisher wirken und die Bürger zu einem umweltfreundlicheren Verhalten anregen?In dem Bericht wird eine Systematisierung des Standes der empirischen Befunde vorgenommen. Ergänzend wurden eigene empirische Untersuchungen zum Anwendungsfeld Energiesparen durchgeführt. Die verhaltenswissenschaftlichen Befunde bieten eine Reihe von Ansatzpunkten für die Ausgestaltung neuer oder Weiterentwicklung bestehender Instrumente. Im Rahmen des Forschungsvorhabens wurde hierzu eine Systematisierung von Instrumenten entwickelt, die zwischen kognitionsbezogenen, interaktionsbezogenen, anreizorientierten und vorschreibenden Instrumenten unterscheidet. In einer Auswertung von 30 Praxisbeispielen und Feldstudien wurde die Wirkung der genannten Arten von Instrumenten untersucht; hier zeigte sich unter anderem, dass in der Praxis häufig ein Mix von Instrumenten angewandt wird. Kognitionsbezogene Instrumente kamen besonders häufig zum Einsatz.Eigene empirischen Untersuchungen ergänzten das Forschungsvorhaben. In diesen wurde eine Reihe von Instrumenten bei der Gestaltung von Stromrechnung und bei der Auszeichnung von Verbrauchskosten von Weißer Ware in Elektromärkten erprobt. Die Analysen zur Gestaltung Stromrechnungen erfolgten über eine Befragung im Vignettendesign und ein Laborexperiment, welches von einer agentenbasierten Computersimulation ergänzt wurde. Die Untersuchung zur Weißen Ware geschah als Feldexperiment über sechs Monate in zwei Elektronikmärkten in Berlin. Hierauf aufbauend wurde ein Leitfaden für die konkrete politikpraktische Entwicklung von verhaltensbasierten umweltökonomischen Instrumenten erarbeitet.
Adsorption and separations for methane, carbon dioxide, nitrogen and oxygen gases
Creators: name: Li, Peiyuan
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Engineering, Chemical.

description: Adsorption behaviour of different gases were studied in this work for adsorption and adsorbent membrane separations for flue gas, natural gas and landfill gas applications. Pure adsorption kinetics and equilibrium of CO2, N2, CH4 and O2 with beta-zeolite adsorbent, and CO 2 and N2 with adsorbents silicalite, NaY and 13X zeolites were studied by using concentration pulse chromatography. Adsorption Henry's Law constants, heats of adsorption, micro-pore diffusion coefficients and corresponding activation energies were determined experimentally and the three different mass transfer mechanisms were discussed. Ideal separation factors were obtained for the adsorption separation applications of the gases studied. Micro-pore diffusion resistance is the definite dominant mass transfer mechanism for most of the adsorbents and separations studied. Adsorption separations of CO2/N2, CO2/ CH4 and CH4/N2 on silicalite were studied by using constant volume and concentration pulse chromatographic techniques. Mixture adsorption isotherms for the binary systems were determined experimentally by using three binary concentration pulse methods. Corresponding x-y adsorption phase diagrams and realistic separation factors were obtained from these experimental binary adsorption isotherms. The results showed that silicalite is a promising adsorbent for the separation of carbon dioxide and nitrogen. Thermodynamic consistency tests between pure and binary gas adsorption systems were performed and results showed reasonable consistency. Breakthrough curves for dynamic adsorption separation of CO2/CH 4, CO2/N2 and CH4/N2, gases with silicalite were determined. Parametric studies, as well as economic assessments were carried out for these separations, using adsorption columns packed with silicalite. Separations of CO2/CH4, CO2/N2 and CH4/N2 gases with MFI zeolite membrane and separation of CO2/N2 gases with two silicone rubber membranes were also studied in this work. Separation factors and permeabilities were measured, adsorption behaviours were analyzed, and separation process mechanisms were discussed. It was concluded that adsorption plays an important role in the separations of these gases with MFI zeolite membrane and silicone rubber membranes.
Understanding Financial Planning Behavior: Insights from Theory of Planned Behavior for Financial Planning
Creators: name: Yeo, Kingsley Hung Khai
Publisher: name: Swinburne
Year: 2024

description: This study examines how financial satisfaction, financial socialization, mental accounting, and financial cognition, mediated by financial literacy, impact intentions toward financial planning behavior using the Theory of Planned Behavior. The findings led to the development of the Theory of Financial Planning Behavior, which posits that these factors directly influence the intention to adopt financial planning behaviors, such as tax, cash flow, investment, risk, estate, and retirement planning. This framework offers valuable insights for academics, consumers, managers, and policymakers in understanding and shaping financial planning behavior.
Self-repairing hierarchical tree-based link restoration scheme for mesh networks
Creators: name: Shah-Heydari, Shahram
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Engineering, Electronics and Electrical.

description: In this thesis we propose and study a self-repairing tree-based pre-planned link protection scheme for backbone mesh survivable networks. We introduce the concept of hierarchical protection trees for unicast traffic protection on network links. The design of the protection tree is formulated and heuristic algorithms are provided for two separate scenarios: (1) the unrestricted spare capacity assignment where the minimization of spare capacity is the objective, and (2) the pre-designed network scenario where the objective of design is to maximize the total network restorability. Using various models for computation, we apply our design techniques to construct the protection tree in each sample network in each scenario, and compute various restoration performance measures of restorability, redundancy, and average backup path length. We conduct extensive studies of the performance trends of the hierarchical protection trees on a database that we built from thousands of randomly generated mesh networks with varying topology parameters such as network size, number of nodes, average nodal degree, network radius, and variation in network load. We have also extended our study to the multiple (double and triple) failure scenarios. We present computational methods to calculate the multiple failure restorability and redundancy requirements for the sample networks from our database. Finally, we provide a comprehensive scheme that covers the signalling, message formats, algorithms and recovery mechanisms for construction of a hierarchical tree in a distributed manner. The advantages and limitations of this new approach are also discussed.
Meeting the needs: Rehabilitation therapists facing the challenges of inclusive education
Creators: name: Burnett, Dawn
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Education, Special.

description: Increased popularity of the inclusive model of education where children with physical disabilities are integrated into neighbourhood schools is posing unique challenges for occupational therapists, physiotherapists, and speech-language pathologists. Researchers suggest that therapists should divest themselves of their direct treatment role and serve as consultants instructing educational personnel to apply required therapy. The purpose of this study was to examine therapists' perspectives of their working lives to identify the challenges they encounter delivering rehabilitation services to children educated in inclusive settings. This study used a qualitative design inspired by the grounded theory approach of Strauss and Corbin (1998). Twenty therapists representing education and health care public, publicly funded private, and private sector agencies participated in semi-structured interviews which were audiotaped and transcribed. Data were analyzed using open, axial, and selective coding to determine emergent themes and develop meaningful interpretations. This study has uncovered several issues related to therapy service delivery. Despite the claim of researchers that consultation is the method of choice in inclusive settings, according to therapists, in the present educational environment, this approach is not producing anticipated results. There is not the time, motivation, or resources to support collaboration, a necessary prerequisite for effective consultation and therapy delivery. Many children, therapists report, are "falling through the cracks." This paradigm shift to consultation has taken place despite a minimal evidence base. According to therapists, dissatisfaction with the present system is causing the rapid growth of private sector services, which further disadvantages already marginalized children and families. This study also highlights the professional values and struggles of therapists to direct their own practice within organizational controls and resource limitations. Furthermore, it reveals that regardless of the therapy discipline, the work setting is a critical factor with regards to therapists' job contentment and satisfaction, and hence the perceived quality of service delivered. Surprisingly, instead of demonstrating discipline specific characteristics, therapists' values, rewards, and stressors are more closely aligned with the employment sector in which they work. This study has highlighted the many tensions and struggles encountered by therapists delivering therapy to children educated in inclusive schools.
The 2dF galaxy redshift survey: The number and luminosity density of galaxies
Creators: name: Cross, Nicholas
name: Driver, Simon P.
name: Couch, Warrick
name: Baugh, Carlton M.
name: Bland-Hawthorn, Joss
name: Bridges, Terry
name: Cannon, Russell
name: Cole, Shaun
name: Colless, Matthew
name: Collins, Chris
name: Dalton, Gavin
name: Deeley, Kathryn
name: De Propris, Roberto
name: Efstathiou, George
name: Ellis, Richard S.
name: Frenk, Carlos S.
name: Glazebrook, Karl
name: Jackson, Carole
name: Lahav, Ofer
name: Lewis, Ian
name: Lumsden, Stuart
name: Maddox, Steve
name: Madgwick, Darren
name: Moody, Stephen
name: Norberg, Peder
name: Peacock, John A.
name: Peterson, Bruce A.
name: Price, Ian
name: Seaborne, Mark
name: Sutherland, Will
name: Tadros, Helen
name: Taylor, Keith
Publisher: name: Swinburne
Year: 2024

description: We present the bivariate brightness distribution (BBD) for the 2dF Galaxy Redshift Survey (2dFGRS) based on a preliminary subsample of 45 000 galaxies. The BBD is an extension of the galaxy luminosity function, incorporating surface brightness information. It allows the measurement of the local luminosity density, jB, and of the galaxy luminosity and surface brightness distributions, while accounting for surface brightness selection biases. The recovered 2dFGRS BBD shows a strong luminosity–surface brightness relation MB∝(2.4±0.51.5)μe], providing a new constraint for galaxy formation models. In terms of the number density, we find that the peak of the galaxy population lies at MB≥−16.0 mag. Within the well-defined selection limits (−24
Three dimensional knee joint kinematics and lower limb muscle activity of anterior cruciate ligament deficient knee joint participants wearing a functional knee brace during running
Creators: name: Theoret, Daniel
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Biology, Animal Physiology.
subject: Health Sciences, Recreation.

description: Background. Knee braces have been found to provide limited stability to the ACL deficient knee in situations where the knee is loaded during sporting movements. Different adaptation strategies have been found between patients that can cope with the injury and patients that cannot. One of the expected changes can be muscle activation characteristics of the injured knee during strenuous activity with and without a functional knee brace. Methods. Three dimensional (3D) kinematic and electromyography (EMG) data were collected from each participant for ten consecutive gait cycles during running on a treadmill under both braced and unbraced conditions. Participants were administered the "Knee Outcome Survey Activities of Daily Living Scale" to distinguish functional and non-functional candidates. Findings. No significant differences on 3D kinematics and EMG data were noted between functional and non-functional participants, thus data analysis focused on comparisons of bracing conditions for one combined group. Bracing significantly increased total range of motion in the sagittal plane (p<0.05) and reduced total range of motion in the transverse plane (p<0.05). Muscle activity at heel-strike showed a consistent trend to increase for the hamstrings and decrease for the quadriceps under the braced when compared to the unbraced condition. Interpretations. Our findings indicated that bracing the ACL deficient knee altered kinematics of the injured leg while running. Tendencies towards reductions in quadriceps and increases in hamstrings activity at heel-strike provides added stability to the injured knee. These changes to bracing further support the mechanical and the proprioceptive contributions of the functional knee brace to protect the ACLD knee.
Corrosion behaviour of X100 pipeline steel under a salty droplet covered by simulated diluted bitumen
Creators: name: Liang, Hongxing
name: Liu, Jing
name: Alfantazi, Akram
name: Asselin, Edouard
Publisher: name: Elsevier
Year: 2021

description: A NaCl-containing water droplet covered by simulated diluted bitumen was used to mimic the internal corrosion scenario that pipelines transporting diluted bitumen may encounter. The NaCl-containing droplet on the X100 pipeline steel shrank to a smaller droplet under the action of the simulated diluted bitumen. Hematite and lepidocrocite were identified in the corrosion products formed in the shrunken droplet. The dissolution of X100 pipeline steel primarily occurred at the edge of the central ring of the shrunken droplet. The corrosion attack morphology seen under these conditions is quite different from that of previous investigations for salty droplets in open air. The results point to a new mechanism of internal corrosion possibly appearing in diluted bitumen pipelines.
A measurement of the cosmological mass density from clustering in the 2dF galaxy redshift survey
Creators: name: Peacock, John A.
name: Cole, Shaun
name: Norberg, Peder
name: Baugh, Carlton M.
name: Bland-Hawthorn, Joss
name: Bridges, Terry
name: Cannon, Russell D.
name: Colless, Matthew
name: Collins, Chris
name: Couch, Warrick
name: Dalton, Gavin
name: Deeley, Kathryn
name: De Propris, Roberto
name: Driver, Simon P.
name: Efstathiou, George
name: Ellis, Richard S.
name: Frenk, Carlos S.
name: Glazebrook, Karl
name: Jackson, Carole
name: Lahav, Ofer
name: Lewis, Ian
name: Lumsden, Stuart
name: Maddox, Steve
name: Percival, Will J.
name: Peterson, Bruce A.
name: Price, Ian
name: Sutherland, Will
name: Taylor, Keith
Publisher: name: Swinburne
Year: 2024

description: The large-scale structure in the distribution of galaxies is thought to arise from the gravitational instability of small fluctuations in the initial density field of the Universe. A key test of this hypothesis is that forming superclusters of galaxies should generate a systematic infall of other galaxies. This would be evident in the pattern of recessional velocities, causing an anisotropy in the inferred spatial clustering of galaxies. Here we Research report a precise measurement of this clustering, using the redshifts of more than 141,000 galaxies from the two-degree-field (2dF) galaxy redshift survey. We determine the parameter beta = Omega0.6/b = 0.43 plusminus 0.07, where Omega is the total mass-density parameter of the Universe and b is a measure of the 'bias' of the luminous galaxies in the survey. (Bias is the difference between the clustering of visible galaxies and of the total mass, most of which is dark.) Combined with the anisotropy of the cosmic microwave background, our results favour a low-density Universe with Omega approximately 0.3.
An experimental investigation into superposition of creep strains for concrete
Creators: name: Brown, Andre O'Brian
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Engineering, Civil.

description: This experimental investigation was performed to examine the validity of the hypothesis of superposition of creep strains by measuring and comparing the time dependent strains of concrete prisms subjected to increasing and decreasing loads, constant loads, and late loads (for unsealed concrete specimens which were dried before loading and sealed concrete specimens kept in a moist room). Three series of specimens were made; one was moist cured for four days, then sealed and the other two series of specimens were moist cured for three and four days respectively, then transferred to a 50% relative humidity room. The conclusions must be read noting that the use of sixteen prism specimens limits the number of specimens available at second and third load events. Use of a single specimen for either shrinkage or compliance measurement is not desirable. For increasing loads under sealed conditions, it is noticeable that at the second load cycle superposition closely approximates the experimental results. There is a 30% underestimation for the third load cycle. For creep recovery of sealed specimens superposition, considering the calculations involved approximates the experimental results at both 20 days and 87 days. Two series of specimens exposed to drying were prepared for this phase of the experimental investigation. For drying before loading the results indicate that superposition underestimates the measured strains by 5--10% for increasing loads, experimental strains are greater than calculated strains. Creep recovery was overestimated by 10--12%. It would appear that the application of the superposition rule is valid for basic creep but is less valid for drying creep. Therefore an alternative hypothesis is necessary to predict with more precision the creep strains for concrete subjected to increasing or decreasing loads for drying before loading and sealed conditions. The influence of compressive load shows very little effect on weight loss compared to specimens without load. These results would indicate that the moisture loss depends only on relative humidity and is not influenced by loading i.e. the seepage theory does not hold.
The 2dF galaxy redshift survey: Spectral types and luminosity functions
Creators: name: Folkes, Simon
name: Ronen, Shai
name: Price, Ian
name: Lahav, Ofer
name: Colless, Matthew
name: Maddox, Steve
name: Deeley, Kathryn
name: Glazebrook, Karl
name: Bland-Hawthorn, Joss
name: Cannon, Russell
name: Cole, Shaun
name: Collins, Chris
name: Couch, Warrick
name: Driver, Simon P.
name: Dalton, Gavin
name: Efstathiou, George
name: Ellis, Richard S.
name: Frenk, Carlos S.
name: Kaiser, Nick
name: Lewis, Ian
name: Lumsden, Stuart
name: Peacock, John
name: Peterson, Bruce A.
name: Sutherland, Will
name: Taylor, Keith
Publisher: name: Swinburne
Year: 2024

description: We describe the 2dF Galaxy Redshift Survey (2dFGRS) and the current status of the observations. In this exploratory paper, we apply a principal component analysis to a preliminary sample of 5869 galaxy spectra and use the two most significant components to split the sample into five spectral classes. These classes are defined by considering visual classifications of a subset of the 2dF spectra, and also by comparison with high-quality spectra of local galaxies. We calculate a luminosity function for each of the different classes and find that later-type galaxies have a fainter characteristic magnitude, and a steeper faint-end slope. For the whole sample we find M*=−19.7 (for Ω=1, H0=100 km s−1 Mpc−1), α=−1.3, φ*=0.017. For class 1 ('early-type') we find M*=−19.6, α=−0.7, while for class 5 ('late-type') we find M*=−19.0, α=−1.7. The derived 2dF luminosity functions agree well with other recent luminosity function estimates.
Only watching others making their experiences is insufficient to enhance adult neurogenesis and water maze performance in mice
Creators: name: Iggena, Deetje
name: Klein, Charlotte
name: Garthe, Alexander
name: Winter, York
name: Kempermann, Gerd
name: Steiner, Barbara
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: In the context of television consumption and its opportunity costs the question arises how far experiencing mere representations of the outer world would have the same neural and cognitive consequences than actively interacting with that environment. Here we demonstrate that physical interaction and direct exposition are essential for the beneficial effects of environmental enrichment. In our experiment, the mice living in a simple standard cage placed in the centre of a large enriched environment only indirectly experiencing the stimulus-rich surroundings (IND) did not display increased adult hippocampal neurogenesis. In contrast, the mice living in and directly experiencing the surrounding enriched environment (DIR) and mice living in a similar enriched cage containing an uninhabited inner cage (ENR) showed enhanced neurogenesis compared to mice in control conditions (CTR). Similarly, the beneficial effects of environmental enrichment on learning performance in the Morris Water maze depended on the direct interaction of the individual with the enrichment. In contrast, indirectly experiencing a stimulus-rich environment failed to improve memory functions indicating that direct interaction and activity within the stimulus-rich environment are necessary to induce structural and functional changes in the hippocampus.
Binding of phosphodiesterase-4 inhibitor (R)-[carbon-11]rolipram in obese and diabetic rats: Effect of diet and noradrenergic modulation
Creators: name: Greene, Michael
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Biology, Molecular.
subject: Chemistry, Biochemistry.

description: Phosphodiesterase type-4 (PDE4) belongs to a family of enzymes responsible for the hydrolysis of cyclic adenosine 3',5'-monophosphate (cAMP) in the body. Activity and density of PDE4 are regulated by endogenous cAMP. The obese and diabetic disease states are associated with sympathetic nervous system dysfunction culminating in altered cAMP-mediated signaling. Our group has previously developed a selective PDE4 inhibitor (R)-rolipram labeled with carbon-11 for imaging PDE4 and cAMP-mediated signaling in vivo using positron emission tomography (PET). Utilizing (R)-[ 11C]rolipram in biodistribution experiments, rodent models of diet-induced obesity exhibited a dysfunctional PDE4 response to acute noradrenaline reuptake inhibitor desipramine treatment in brain and periphery compared to diet-resistant lean rats; streptozocin-treated type 2 diabetic rats had reduced brain and heart PDE4 levels compared to citrate-treated controls. Overall, these studies support the ability of (R)-[11C]rolipram to measure central and peripheral tissue PDE4 levels and dysfunctional cAMP-mediated signaling in the obese and diabetic states using PET.
Spermidine Suppresses Age-Associated Memory Impairment by Preventing Adverse Increase of Presynaptic Active Zone Size and Release
Creators: name: Gupta, Varun K.
name: Pech, Ulrike
name: Bhukel, Anuradha
name: Fulterer, Andreas
name: Ender, Anatoli
name: Mauermann, Stephan F.
name: Andlauer, Till F. M.
name: Antwi-Adjei, Emmanuel
name: Beuschel, Christine
name: Thriene, Kerstin
name: Maglione, Marta
name: Quentin, Christine
name: Bushow, Rene
name: Schwaerzel, Martin
name: Mielke, Thorsten
name: Madeo, Frank
name: Dengjel, Joern
name: Fiala, Andre
name: Sigrist, Stephan J.
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie

description: Memories are assumed to be formed by sets of synapses changing their structural or functional performance. The efficacy of forming new memories declines with advancing age, but the synaptic changes underlying age-induced memory impairment remain poorly understood. Recently, we found spermidine feeding to specifically suppress age-dependent impairments in forming olfactory memories, providing a mean to search for synaptic changes involved in age-dependent memory impairment. Here, we show that a specific synaptic compartment, the presynaptic active zone (AZ), increases the size of its ultrastructural elaboration and releases significantly more synaptic vesicles with advancing age. These age-induced AZ changes, however, were fully suppressed by spermidine feeding. A genetically enforced enlargement of AZ scaffolds (four gene-copies of BRP) impaired memory formation in young animals. Thus, in the Drosophila nervous system, aging AZs seem to steer towards the upper limit of their operational range, limiting synaptic plasticity and contributing to impairment of memory formation. Spermidine feeding suppresses age-dependent memory impairment by counteracting these age- dependent changes directly at the synapse.
Performance evaluation of the IS-136 DCCH reverse access channel mechanism.
Creators: name: Naim, Ghassan.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Engineering, Electronics and Electrical.

description: With the ever evolving mobile cellular technology, more standards are being deployed and upgraded with the goal to provide better service and quality as well as higher capacity to support the higher demand of voice communication. This thesis focuses on the performance of the Mobile/Wireless network interface for IS-136, a North-American standard for digital cellular system. It is no doubt that voice service can be affordable but how does the interface react to the addition of more features and data transfer from the end user onto the system is still under investigation. With the ever increasing need for the wireless data communication features (short messages, fax, digital images and digital video), it is important to answer questions regarding performance and how the cellular system can be improved. A study of the reverse access control protocol of IS-136 digital control channel is provided and performance results are presented and studied taking in consideration different setups for the access control parameters, input traffic and air link conditions. Finally, guidelines are provided on how to set-up the system when operating under different conditions resulting from different traffic and channel quality characteristics.
Activity of translation regulator eukaryotic elongation factor-2 kinase is increased in Parkinson disease brain and its inhibition reduces alpha synuclein toxicity
Creators: name: Jan, Asad
name: Jansonius, Brandon
name: Delaidelli, Alberto
name: Bhanshali, Forum
name: An, Yi A.
name: Ferreira, Nelson
name: Smits, Lisa M.
name: Negri, Gian L.
name: Schwamborn, Jens C.
name: Jensen, Poul H.
name: Mackenzie, Ian
name: Taubert, Stefan
name: Sorensen, Poul H.
Publisher: name: BioMed Central
Year: 2018

description: Parkinson disease (PD) is the second most common neurodegenerative disorder and the leading neurodegenerative cause of motor disability. Pathologic accumulation of aggregated alpha synuclein (AS) protein in brain, and imbalance in the nigrostriatal system due to the loss of dopaminergic neurons in the substantia nigra- pars compacta, are hallmark features in PD. AS aggregation and propagation are considered to trigger neurotoxic mechanisms in PD, including mitochondrial deficits and oxidative stress. The eukaryotic elongation factor-2 kinase (eEF2K) mediates critical regulation of dendritic mRNA translation and is a crucial molecule in diverse forms of synaptic plasticity. Here we show that eEF2K activity, assessed by immuonohistochemical detection of eEF2 phosphorylation on serine residue 56, is increased in postmortem PD midbrain and hippocampus. Induction of aggressive, AS-related motor phenotypes in a transgenic PD M83 mouse model also increased brain eEF2K expression and activity. In cultures of dopaminergic N2A cells, overexpression of wild-type human AS or the A53T mutant increased eEF2K activity. eEF2K inhibition prevented the cytotoxicity associated with AS overexpression in N2A cells by improving mitochondrial function and reduced oxidative stress. Furthermore, genetic deletion of the eEF2K ortholog efk-1 in C. elegans attenuated human A53T AS induced defects in behavioural assays reliant on dopaminergic neuron function. These data suggest a role for eEF2K activity in AS toxicity, and support eEF2K inhibition as a potential target in reducing AS-induced oxidative stress in PD.
The SAMI Galaxy Survey: The link between angular momentum and optical morphology
Creators: name: Cortese, Luca
name: Fogarty, L. M.R.
name: Bekki, K.
name: van de Sande, J.
name: Couch, Warrick
name: Catinella, Barbara
name: Colless, M.
name: Obreschkow, D.
name: Taranu, D.
name: Tescari, E.
name: Barat, D.
name: Bland-Hawthorn, J.
name: Bloom, J.
name: Bryant, J. J.
name: Cluver, Michelle
name: Croom, S. M.
name: Drinkwater, M. J.
name: d'Eugenio, F.
name: Konstantopoulos, I. S.
name: Lopez-Sanchez, A.
name: Mahajan, S.
name: Scott, N.
name: Tonini, C.
name: Wong, O. I.
name: Allen, J. T.
name: Brough, S.
name: Goodwin, M.
name: Green, A. W.
name: Ho, I. T.
name: Kelvin, L. S.
name: Lawrence, J. S.
name: Lorente, N. P.F.
name: Medling, A. M.
name: Owers, M. S.
name: Richards, S.
name: Sharp, R.
name: Sweet, Sarah
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: We investigate the relationship between stellar and gas specific angular momentum j, stellar massM* and optical morphology for a sample of 488 galaxies extracted from the Sydney-AAO Multi-object Integral field Galaxy Survey.We find that j, measured within one effective radius, monotonically increases with M* and that, for M* > 109.5 M⊙, the scatter in this relation strongly correlates with optical morphology (i.e. visual classification and Sérsic index). These findings confirm that massive galaxies of all types lie on a plane relating mass, angular momentum and stellar-light distribution, and suggest that the large-scale morphology of a galaxy is regulated by its mass and dynamical state. We show that the significant scatter in the M*-j relation is accounted for by the fact that, at fixed stellar mass, the contribution of ordered motions to the dynamical support of galaxies varies by at least a factor of 3. Indeed, the stellar spin parameter (quantified via λR) correlates strongly with Sérsic and concentration indices. This correlation is particularly strong once slow rotators are removed from the sample, showing that late-type galaxies and early-type fast rotators form a continuous class of objects in terms of their kinematic properties.
Creating Canadians: A Socio-Cultural Study of the North-West Mounted Police, 1883--1887
Creators: name: Chevalier-Forget, Sophie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: History, Canadian.
subject: Sociology, Criminology and Penology.

description: There is no other organization quite like the Royal Canadian Mounted Police, and its precursor, the North-West Mounted Police (NWMP). Created in 1873 to establish a lawful government presence in the newly acquired territories of the North-West, the organization grew from 300 to 1000 men between the years of 1883 and 1887. Facing such important challenges as the completion of the Canadian Pacific Railway and the 1885 Northwest Campaign, the historiography has found that the organization had succeeded in enforcing the law, lending credence to the romantic myth of the mounted police. This research seeks to understand who joined the mounted police, and how their time in the force influenced the organization. This quantitative study looks at the birthplace, provincial provenance, religion, age, and time spent in the force to understand the enlisted men and commissioned officers who became "Mounties". Recruiters sought out English-speaking farmers from Ontario, but men from all walks of life, including medical professionals, labourers, and even a circus clown, joined the organization. The constables and non-commissioned officers were primarily unskilled workers. In the end, the majority of these men served less than a single service term, making their time in the force more like temporary employment than a career. While political patronage influenced the appointment of commissioned officers, efforts were made to ensure a representation of men from all Canadian provinces and territories. Most officers had previous military experience and enjoyed many more benefits than the enlisted men, including a pension system, which helped explain why almost 80 percent made a career of the mounted police. This study, based on an exhaustive review of over 1200 personnel files, will reshape our understanding of who these Mounties were and contribute to the history of law enforcement in western Canada.
Accelerated apoptotic death and in vivo turnover of erythrocytes in mice lacking functional mitogen- and stress-activated kinase MSK1/2
Creators: name: Lang, Elisabeth
name: Bissinger, Rosi
name: Fajol, Abul
name: Salker, Madhuri S.
name: Singh, Yogesh
name: Zelenak, Christine
name: Ghashghaeinia, Mehrdad
name: Gu, Shuchen
name: Jilani, Kashif
name: Lupescu, Adrian
name: Reyskens, Kathleen M. S. E.
name: Ackermann, Teresa F.
name: Föller, Michael
name: Schleicher, Erwin
name: Sheffield, William P.
name: Arthur, J. Simon C.
name: Lang, Florian
name: Qadri, Syed M.
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: The mitogen- and stress-activated kinase MSK1/2 plays a decisive role in apoptosis. In analogy to apoptosis of nucleated cells, suicidal erythrocyte death called eryptosis is characterized by cell shrinkage and cell membrane scrambling leading to phosphatidylserine (PS) externalization. Here, we explored whether MSK1/2 participates in the regulation of eryptosis. To this end, erythrocytes were isolated from mice lacking functional MSK1/2 (msk−/−) and corresponding wild-type mice (msk+/+). Blood count, hematocrit, hemoglobin concentration and mean erythrocyte volume were similar in both msk−/− and msk+/+ mice, but reticulocyte count was significantly increased in msk−/− mice. Cell membrane PS exposure was similar in untreated msk−/− and msk+/+ erythrocytes, but was enhanced by pathophysiological cell stressors ex vivo such as hyperosmotic shock or energy depletion to significantly higher levels in msk−/− erythrocytes than in msk+/+ erythrocytes. Cell shrinkage following hyperosmotic shock and energy depletion, as well as hemolysis following decrease of extracellular osmolarity was more pronounced in msk−/− erythrocytes. The in vivo clearance of autologously-infused CFSE-labeled erythrocytes from circulating blood was faster in msk−/− mice. The spleens from msk−/− mice contained a significantly greater number of PS-exposing erythrocytes than spleens from msk+/+ mice. The present observations point to accelerated eryptosis and subsequent clearance of erythrocytes leading to enhanced erythrocyte turnover in MSK1/2-deficient mice.
title: Razones para recuperar los programas de detección precoz del cáncer de mama en el sistema público.
Creators: name: Gijón de la Santa, Luis
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Breast
subject: Mammography
subject: Socio-economic issues

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
Analizar las ventajas de unificar en el mismo centro diagnóstico el programa de despistaje de cáncer de mama y el manejo de la patología...