cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A comparison of the sample invariance of item statistics from the classical test model, item response model, and structural equation model: A case study of real response data.
Creators: name: Breithaupt, Krista J.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2001
Subjects: subject: Education, Tests and Measurements.

description: The sample dependency of item statistics and the practical importance of alternative models for test scores are evaluated in this case study using real data. The hypothesized superiority of the item response model (IRM) attributed to the sample invariance of item statistics is tested against a classical test theory (CTT) model and a structural equation model (SEM) for responses to the Center for Epidemiologic Studies-Depression (CES-D) scale. Sample-invariance of item statistics is tested in 10 random samples of 500 people, and across gender, age, and different health groups. Practical implications are considered in a comparison of differential score reliability, and individual rankings, using each test model. Item estimates from a 2-parameter logistic IRM were compared with classical item difficulty and discrimination estimates, and with item regression path estimates from a uni-factor SEM. An intraclass correlation coefficient (ICC) was calculated to evaluate the level of absolute agreement between item statistics in each condition. Item statistics from all test models were very similar across random samples, indicating a high level of invariance. However, IRM threshold parameters were least sensitive to sampling compared with other models. Greater variance was found among item statistics based on all test models across groups that differed in age, health, or gender. IRM discrimination estimates were most stable across contrasting groups, compared with those from other test models. Rankings assigned to individuals were most similar when CTT scores and linear transformed IRM scores were compared. The largest variation in individual rankings was obtained when SEM factor scores were compared with CTT scores in the higher score ranges. The reliability estimate for factor scores based on the SEM was highest overall. However, IRM optimal scores and the modified reliability estimate based on these, provide a more accurate estimate of average measurement error. This evidence supports the hypothesis of improved score precision when tests are constructed and scored using IRM techniques. However, rankings based on individual CES-D scores were very similar when the CTT, IRM, and SEM techniques were compared. Therefore, CTT or SEM scoring are reasonable alternatives to the IRM when norm-referenced score interpretations are based on CES-D scores.
Origine du drainage rocheux acide dans la région d'Eagle Plains, Territoire du Yukon (Canada) et son impact sur les épinettes noires (Picea mariana (Mill))
Creators: name: Doucet, Annick
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Physical Geography.
subject: Geochemistry.

description: The construction of the Dempster Highway, a 736 km long gravel road located in the northern Yukon Territory, is believed to have initiated acid rock drainage nearby Eagle Plains. In this study, the spatio-temporal potential of dendrogeochemistry to understand the impacts of acidity on black spruce is testes and geochemical methods are used to examine the origin of acid rock drainage. The dendrogeochemical results suggest that the construction of the Dempster Highway in the 1970's did not initiate acid rock drainage near Eagle Plains, since elevated concentrations of trace and heavy metals were recorded in the 1940's, comparatively to the control site. However, in the acidified zone, there is an increase in trace metals in the 1970's, suggesting that the construction of the road amplified the release of acidity by exposing fresh pyrite-rich shale to the surface. The acidified stream, which originates from the excavated area, has a pH value averaging 3.1 +/- 0.3 and a solute concentration several orders of magnitude greater than the surface water collected from the adjacent control site. Active layer soluble ions are also characterized by a similar geochemical trend, although their concentration is slightly less. The plot of solute concentrations of the acidified stream and active layer soluble ions versus sulfates give similar slopes, suggesting a recycling of solutes, it is proposed that, after acid rock drainage was initiated, the effect of seasonal freeze-thaw of the active layer played an important rote in maintaining and recycling the acidity in the stream. During the freeze-back of the active layer, Fe sulfate minerals would precipitate, thus producing a large amount of H + that would be stored in the active layer. During the thaw season, this acidity would be released, thus enhancing further dissolution of clays and alumino-silicate minerals. The release of these contaminants by acid rock drainage, not only causes a perturbation of the water quality, but has a negative impact on the sensitive nearby Arctic ecosystem. The vegetation surrounding the acidified stream shows important signs of deterioration, a higher rate of mortality and zones without vegetation. This absence of vegetation has an impact on the depth of seasonal thaw by increasing the depth by twice compared to the adjacent control site.
Influence of bariatric surgery on the peripheral blood immune system of female patients with morbid obesity revealed by high-dimensional mass cytometry
Creators: name: Gihring, Adrian
name: Gärtner, Fabian
name: Mayer, Laura
name: Roth, Aileen
name: Abdelrasoul, Hend
name: Kornmann, Marko
name: Elad, Leonard
name: Knippschild, Uwe
Publisher: name: Universität Ulm
Year: 2023
Subjects: subject: Mass cytometry (CyTOF)
subject: Immune cells
subject: DDC 610 / Medicine & health
subject: Obesity
subject: Bariatric surgery
subject: Inflammation
subject: Immune system phenomena
subject: Fettsucht
subject: Magenchirurgie
subject: Entzündung
subject: Immunologie

description: Introduction: Obesity is associated with low-grade chronic inflammation, altered levels of adipocytokines, and impaired regulation of gastrointestinal hormones. Secreted, these factors exert immunostimulatory functions directly influencing peripheral immune cells. Methods: In the realm of this study, we aimed to investigate the composition and activation status of peripheral blood immune cells in female patients with morbid obesity compared to lean controls using high-dimensional mass cytometry. Besides, we also assessed the influence of bariatric surgery with respect to its ability to reverse obesity-associated alterations within the first-year post-surgery. Results: Patients with morbid obesity showed typical signs of chronic inflammation characterized by increased levels of CRP and fibrinogen. Apart from that, metabolic alterations were characterized by increased levels of leptin and resistin as well as decreased levels of adiponectin and ghrelin compared to the healthy control population. All these however, except for ghrelin levels, rapidly normalized after surgery with regard to control levels. Furthermore, we found an increased population of monocytic CD14+, HLA-DR-, CD11b+, CXCR3+ cells in patients with morbid obesity and an overall reduction of the HLA-DR monocytic expression compared to the control population. Although CD14+, HLA-DR-, CD11b+, CXCR3+ decreased after surgery, HLA-DR expression did not recover within 9 – 11 months post-surgery. Moreover, compared to the control population, patients with morbid obesity showed a perturbed CD4+ T cell compartment, characterized by a strongly elevated CD127+ memory T cell subset and decreased naïve T cells, which was not recovered within 9 – 11 months post-surgery. Although NK cells showed an activated phenotype, they were numerically lower in patients with morbid obesity when compared to healthy controls. The NK cell population further decreased after surgery and did not recover quantitatively within the study period. Conclusions: Our results clearly demonstrate that the rapid adaptions in inflammatory parameters and adipocytokine levels that occur within the first year post-surgery do not translate to the peripheral immune cells. Apart from that, we described highly affected, distinct immune cell subsets, defined as CD127+ memory T cells and monocytic CD14+, HLA-DR, CD11b+, CXCR3+ cells, that might play a significant role in understanding and further decoding the etiopathogenesis of morbid obesity.
Women and Social Networks
Donne, relazioni e social network
Creators: name: Pacetti, Elena
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: Social networks are becoming one of the most used tools of communication in the contemporary world, but still there are big differencies betwwen men and women’s usage. This paper intend analyze the role that women and social networks have in the trasformations happening in our societies, either in West and Middle East, and how education could support change processes through the use of social network.
description: Social networks are becoming one of the most used tools of communication in the contemporary world, but still there are big differencies betwwen men and women’s usage. This paper intend analyze the role that women and social networks have in the trasformations happening in our societies, either in West and Middle East, and how education could support change processes through the use of social network.
Pearl Harbor redefined: United States Navy radio intelligence in 1941.
Creators: name: Wilford, Timothy.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2001
Subjects: subject: History, United States.

description: The Pearl Harbor controversy may be redefined through a study of radio intelligence as practiced by the United States Navy (USN) in 1941. Newly released primary documents, supported by secondary historical and technical accounts, explain the effectiveness of USN radio intelligence in terms of its principal activities in 1941: cryptanalysis, traffic analysis and intelligence reporting. This evidence also demonstrates the extent to which the USN exchanged intelligence with its Allied counterparts. USN radio intelligence penetrated the vast expanses of the Pacific, permitting the partial reading of Japanese naval messages and the tracking of Japanese vessels. In the period preceding the Pearl Harbor attack, radio intelligence provided the USN with foreknowledge of Japan's intentions and actions in the north Pacific, although Washington failed to provide its Hawaiian commanders with adequate forewarning. Washington's response can now only be defined in terms of gross neglect or careful design, rather than surprise.
Psychometric performance of the PROMIS® depression item bank: a comparison of the 28- and 51-item versions using Rasch measurement theory
Creators: name: Cleanthous, Sophie
name: Barbic, Skye
name: Smith, Sarah
name: Regnault, Antoine
Publisher: name: Springer International Publishing
Year: 2019

description: Purpose: The aim of this study is to illustrate an example application of Rach Measurement Theory (RMT) in the evaluation of patient-reported outcome (PRO) measures. RMT diagnostic methods were applied to evaluate the PROMIS® Depression items as part of a series of papers applying different psychometric paradigms in parallel to the same data. Methods: RMT was used to examine scale-to-sample targeting, scale performance and sample measurement of two PROMIS depression item pools including respectively 28 and 51- items. Results: Sub-optimal but improved targeting was displayed in the 51-item pool which covered 27% of the range of depression measured in the sample compared to only 15% in the 28-item bank, further reducing the sample percentage with lower depression not covered by the scale (28% Vs 34%). Satisfactory scale performance was observed by the 28-item bank with marginal item misfit. However, deviations from the RMT criteria in the 51-itempool were observed including: 9 reversed thresholds; 12 misfitting items and 12 item-pairs displaying dependency. Overall reliability was good for sets of items (Person Separation Index = 0.93 and 0.95), but sub-optimal sample measurement (17% Vs 19% fit residuals outside of the recommended range). Conclusions: The RMT approach in this exercise provided evidence that compared to the 28-item bank, the extended 51-item version of the PROMIS depression, improved sample-to-scale targeting. However, targeting in the lower end of the concept of interest remained sub-optimal and scale performance deteriorated. There may be a need to improve the conceptual breadth of the construct under investigation to ensure the inclusion of items that capture the full range of the concept of interest for this context of use.
Isolated elliptical galaxies
Creators: name: Reda, Fatma M.
Publisher: name: Swinburne
Year: 2024

description: This thesis presents a detailed study of a well defined sample of isolated early-type galaxies. We define a sample of 36 nearby isolated early-type galaxies using a strict isolation criteria. New wide-field optical imaging of 20 isolated galaxies confirms their early-type morphology and relative isolation. We find that the isolated galaxies reveal a colour-magnitude relation similar to cluster ellipticals, which suggests that they formed at a similar epoch to cluster galaxies, such that the bulk of their stars are very old. However, several galaxies of our sample reveal evidence for dust lanes, plumes, shells, boxy and disk isophotes. Thus at least some isolated galaxies have experienced a recent merger/accretion event which may have also induced a small burst of star formation. Using new long-slit spectra of 12 galaxies we found that, isolated galaxies follow similar scaling relations between central stellar population parameters, such as age, metallicity [Z/H] and α-element abundance [E/Fe], with galaxy velocity dispersion to their counterparts in high density environments. However, isolated galaxies tend to have slightly younger ages, higher metallicities and lower abundance ratios. Such properties imply an extended star formation history for galaxies in lower density environments. We measure age gradients that anticorrelate with the central galaxy age. Thus as a young starburst evolves, the age gradient flattens from positive to almost zero. Metallicity gradients range from near zero to strongly negative. For our high mass galaxies, metallicity gradients are shallower with increasing galaxy mass. Such behaviour is expected in the remnants of multiple mergers. The metallicity gradients are also found to be correlated with the central age and metallicity, as well as to the age gradients. We generally find flat [E/Fe] gradients. We also examine the Fundamental Plane in both traditional Re, μe and σ space and κ-space. Most isolated galaxies follow the same Fundamental Plane tilt and scatter for galaxies in high density environments. However, a few galaxies notably deviate from the plane in the sense of having smaller M/L ratios. This can be understood in terms of their younger stellar populations, which are presumably induced by a gaseous merger. In conclusion, our results are compatible with an extended merger/accretion history for most isolated elliptical galaxies. However, for those galaxies which show no fine structures nor any young stellar populations, an early formation epoch followed by passive evolution is more probable.
A diatom-based Holocene paleoenvironmental record from a lake on Boothia Peninsula, central mid-Arctic, Nunavut, Canada.
Creators: name: LeBlanc, Michelle.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Physical Geography.

description: An important source of information about climate change comes from sedimentary deposits from the arctic region. However, there are few lacustrine fossil records from the central mid Arctic region of Canada. A 485 cm sediment core, from a lake unofficially called JR01, Boothia Peninsula, Nunavut, yielded a high-resolution diatom record. Five radiocarbon dates provided the chronology. Three distinct zones are revealed in the relative percent abundance and diatom concentration diagrams. A more diverse and productive flora in the first zone implies warmer temperatures in the middle Holocene. A complete shift in diatom composition to a predominantly Fragilaria flora and a reduction in diversity and production suggests a cooler climate in this region after approximately 4360 years B.P. Smaller-scale climatic trends, such as the Little Ice Age (LIA) (ca. 550--150 yr. B.P.) and the Medieval Warm Period (ca. 1000--700 yr. B.P.), caused shifts in the diatom flora and production. Subtle shifts in floristic diversity within the LIA may reflect climate variability at a decadal scale. This variability is also recorded in other high-resolution paleoclimate records from the Arctic. A gradual shift to a more diverse and productive flora in the last 180 years B.P. (1790 years A.D.) suggests a response to the recent warming trend. This study permits us to address ambiguities with respect to the timing, the geographic extent and the severity of the recent warming. Changes in total diatom concentrations, magnetic susceptibility, organic and carbonate content may also reflect changes in the diatom assemblages and indicate shifts in vegetation, soil erosion, or in hydrology from the surrounding catchment. The morphological variance of Fragilaria and other taxonomy issues are also discussed.
Supplementary document for Pulsed laser activated impulse response encoder (PLAIRE): Sensitive evaluation of surface cellular stiffness on zebrafish embryos - 5042268.pdf
Creators: name: Yasukuni, Ryohei
name: Minamino, Daiki
name: Iino, Takanori
name: Yamada, Sohei
name: Bessho, Yasumasa
name: Matsui, Takaaki
name: Hosokawa, Yoichiroh
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Calculation of the cantilever’s natural frequency for different bending modes
Network patterns of university-industry collaboration: A case study of the chemical sciences in Australia
Creators: name: Gallagher, Colin
name: Lusher, Dean
name: Koskinen, Johan
name: Roden, Bopha
name: Wang, Peng
name: Gosling, Aaron
name: Polyzos, Anastasios
name: Stenzel, Martina
name: Hegarty, Sarah
name: Spurling, Thomas
name: Simpson, Gregory
Publisher: name: Swinburne
Year: 2024

description: University–industry (U–I) collaboration takes on many forms, from research services, teaching and training, to curiosity-led research. In the chemical industries, academic chemists generate new knowledge, address novel problems faced by industry, and train the future workforce in cutting-edge methods. In this study, we examine the dynamic structures of collaborative research contracts and grants between academic and industry partners over a 5-year period within a research-intensive Australian university. We reconstruct internal contract data provided by a university research office as records of its collaborations into a complex relational database that links researchers to research projects. We then structure this complex relational data as a two-mode network of researcher-project collaborations for utilisation with Social Network Analysis (SNA)—a relational methodology ideally suited to relational data. Specifically, we use a stochastic actor-oriented model (SAOM), a statistical network model for longitudinal two-mode network data. Although the dataset is complicated, we manage to replicate it exactly using a very parsimonious and relatable network model. Results indicate that as academics gain experience, they become more involved in direct research contracts with industry, and in research projects more generally. Further, more senior academics are involved in projects involving both industry partners and other academic partners of any level. While more experienced academics are also less likely to repeat collaborations with the same colleagues, there is a more general tendency in these collaborations, regardless of academic seniority or industry engagement, for prior collaborations to predict future collaborations. We discuss implications for industry and academics.
The problem of maternity in the correspondence between Ellen Key and Sibilla Aleramo
Il problema della maternità nel rapporto epistolare tra Ellen Key e Sibilla Aleramo
Creators: name: Pironi, Tiziana
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The problem of maternity is the central theme in the volume Una Donna. It became the subject of the intense  correspondence  between the writer and the Swedish intellectual Ellen Key whose influence has so far been somewhat overlooked in Italy. This article sets out to describe some unexplored aspects of the life of Rina Faccio, alias Aleramo, taking into consideration the analysis of the correspondence between Key and Aleramo which followed the publication of the famous autobiography by the Italian writer.
description: The problem of maternity is the central theme in the volume Una Donna. It became the subject of the intense  correspondence  between the writer and the Swedish intellectual Ellen Key whose influence has so far been somewhat overlooked in Italy. This article sets out to describe some unexplored aspects of the life of Rina Faccio, alias Aleramo, taking into consideration the analysis of the correspondence between Key and Aleramo which followed the publication of the famous autobiography by the Italian writer.
The father figure in the early childhood services between center and outskirts
La figura paterna al nido tra centro e periferia
Creators: name: Schenetti, Michela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: Sociological researches highlight that in Italy the division of work and parental care is still very asymetrical, being burdening especially on women (Saraceno: 2003). The care of young children is still predominantly carried out by women at home, and increasingly, within early childhood education institutions although – in relation to the latter – significant differences exists among different geographical areas. The promotion of the encouragement of a culture of gender differences can only go through the services for early childhood. In this context, educational policies play a significant role in the cultural promotion of early childhood services and in the valorization of parental roles in the perspective of educational co-responsibility. In fact, in the last decades, we are witness to significant changes in relation to the role of fathers within the family, changes that are connoted by an increasing involvement of fathers in the life of their child. This paper aims to discuss the findings of a qualitative study that investigated and compared the lived experiences of fathers with the representations of fathers’ parental role produced by mothers and early childhood educators.
description: Sociological researches highlight that in Italy the division of work and parental care is still very asymetrical, being burdening especially on women (Saraceno: 2003). The care of young children is still predominantly carried out by women at home, and increasingly, within early childhood education institutions although – in relation to the latter – significant differences exists among different geographical areas. The promotion of the encouragement of a culture of gender differences can only go through the services for early childhood. In this context, educational policies play a significant role in the cultural promotion of early childhood services and in the valorization of parental roles in the perspective of educational co-responsibility. In fact, in the last decades, we are witness to significant changes in relation to the role of fathers within the family, changes that are connoted by an increasing involvement of fathers in the life of their child. This paper aims to discuss the findings of a qualitative study that investigated and compared the lived experiences of fathers with the representations of fathers’ parental role produced by mothers and early childhood educators.
Gender differences and parenting: the educational style of fathers and mothers. Results from an empirical study
Differenze di genere e genitorialità: lo stile educativo di padri e madri. Risultati di una ricerca empirica
Creators: name: Truffelli, Elisa
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: Quantitative empirical study presented here concern two main dimensions: on the one hand the participation of fathers and mothers to housework and child care, considering the educational outcome that this has on children and on other hand the fathers' and mothers' educational style, comparing also each other's perceptions. The leading objective underlying the investigation consist on understanding whether, in the rapidly changing actual social context, the parental couples reproduce family and educational patterns based on a traditional conception of gender roles, or, instead, present elements of transformation and, in case, in what direction they are going. The data from the sample, couples of parents living in a rural town (222 subjects), showed the presence of some changes that least affect the redistribution of family work between men and women (work that still disadvantage women), and that deal with father’s functions and characteristics: the fathers appear less normative and more inclined to involvement with their children. Finally, mothers and fathers seam found the educational relationship primarily on dialogue, with some differences in the type of approach depending on the children gender.
description: Quantitative empirical study presented here concern two main dimensions: on the one hand the participation of fathers and mothers to housework and child care, considering the educational outcome that this has on children and on other hand the fathers' and mothers' educational style, comparing also each other's perceptions. The leading objective underlying the investigation consist on understanding whether, in the rapidly changing actual social context, the parental couples reproduce family and educational patterns based on a traditional conception of gender roles, or, instead, present elements of transformation and, in case, in what direction they are going. The data from the sample, couples of parents living in a rural town (222 subjects), showed the presence of some changes that least affect the redistribution of family work between men and women (work that still disadvantage women), and that deal with father’s functions and characteristics: the fathers appear less normative and more inclined to involvement with their children. Finally, mothers and fathers seam found the educational relationship primarily on dialogue, with some differences in the type of approach depending on the children gender.
A walk in the PARC: developing and implementing 21st century chemical risk assessment in Europe
Creators: name: Bandow, Nicole
name: Marx-Stoelting, Philip
name: Kolossa-Gehring, Marike
name: Rivière, G.
name: Luijten, Mirjam
Publisher: name: My University
Year: 2023
Subjects: Chemikalien
Expositionsabschätzung

description: Current approaches for the assessment of environmental and human health risks due to exposure to chemical substances have served their purpose reasonably well. Nevertheless, the systems in place for different uses of chemicals are faced with various challenges, ranging from a growing number of chemicals to changes in the types of chemicals and materials produced. This has triggered global awareness of the need for a paradigm shift, which in turn has led to the publication of new concepts for chemical risk assessment and explorations of how to translate these concepts into pragmatic approaches. As a result, next-generation risk assessment (NGRA) is generally seen as the way forward. However, incorporating new scientific insights and innovative approaches into hazard and exposure assessments in such a way that regulatory needs are adequately met has appeared to be challenging. The European Partnership for the Assessment of Risks from Chemicals (PARC) has been designed to address various challenges associated with innovating chemical risk assessment. Its overall goal is to consolidate and strengthen the European research and innovation capacity for chemical risk assessment to protect human health and the environment. With around 200 participating organisations from all over Europe, including three European agencies, and a total budget of over 400 million euro, PARC is one of the largest projects of its kind. It has a duration of seven years and is coordinated by ANSES, the French Agency for Food, Environmental and Occupational Health & Safety. © The Author(s) 2023
Donne in viaggio nella Rete. Tessiture al tempo di Internet
Women navigating  on Internet. Weaving in the age of the Web
Creators: name: Zanetti, Federica
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The space offered by Internet as a place for developing new possibilities of exchange, of participation and of revindication may appear to have been “conquered” or “stolen” by  women seeking to make a break with the  tenets  that continuously reconfirm gender stereotypes and to deconstruct those erotic-pornographic images in which the body of the woman is increasingly instrumentalised. It is an attempt to present an alternative to the distorted vision of sexuality involving forms of violence and exploitation which are increasingly found in the social space in Internet. If on one hand we cannot ignore the tendency to re-propose and reconfirm stereotypes linked to gender, that reinforce a dominant male culture, on the other, Internet can be recognized as a multi-perspective space made up of representations and auto-representations expressing a  wide variety of points of view,  in which culture and gender identity are constructed and transformed: a tool of female empowerment. Internet is also made up of female voices which live and tell. Women who navigate write, learn, create and maintain relationships. In fact, it is these women “navigators”, weavers of the Web, who are experimenting with new forms of nomadism, of research, of respect for their own culture and their own identity.
description: The space offered by Internet as a place for developing new possibilities of exchange, of participation and of revindication may appear to have been “conquered” or “stolen” by  women seeking to make a break with the  tenets  that continuously reconfirm gender stereotypes and to deconstruct those erotic-pornographic images in which the body of the woman is increasingly instrumentalised. It is an attempt to present an alternative to the distorted vision of sexuality involving forms of violence and exploitation which are increasingly found in the social space in Internet. If on one hand we cannot ignore the tendency to re-propose and reconfirm stereotypes linked to gender, that reinforce a dominant male culture, on the other, Internet can be recognized as a multi-perspective space made up of representations and auto-representations expressing a  wide variety of points of view,  in which culture and gender identity are constructed and transformed: a tool of female empowerment. Internet is also made up of female voices which live and tell. Women who navigate write, learn, create and maintain relationships. In fact, it is these women “navigators”, weavers of the Web, who are experimenting with new forms of nomadism, of research, of respect for their own culture and their own identity.
The impact of mergers on relaxed x-ray clusters II: effects on global X-ray and Sunyaev-Zel'dovich properties and their scaling relations
Creators: name: Poole, Gregory B.
name: Babul, Arif
name: McCarthy, Ian G.
name: Fardal, Mark A.
name: Bildfell, C. J.
name: Quinn, Thomas
name: Mahdavi, Andisheh
Publisher: name: Swinburne
Year: 2024

description: We use the suite of simulations presented by Poole et al. to examine global X-ray and Sunyaev-Zel'dovich (SZ) observables for systems of merging relaxed X-ray clusters. The time evolution of our merging systems' X-ray luminosities, temperatures, total mass measures, SZ central Compton parameters and integrated SZ fluxes are presented and the resulting impact on their scaling relations examined. In all cases, and for all parameters, we observe a common time evolution: two rapid transient increases during first and second pericentric passage, with interceding values near or below their initial levels. This is in good qualitative agreement with previous idealized merger simulations, although we find several important differences related to the inclusion of radiative cooling in our simulations. These trends translate into a generic evolution in the scaling-relation planes as well: a rapid transient roughly along the mass scaling relations, a subsequent slow drift across the scatter until virialization, followed by a slow evolution along and up the mass scaling relations as cooling recovers in the cluster cores. However, this drift is not sufficient to account for the observed scatter in the scaling relations. We also study the effects of mergers on several theoretical temperature measures of the intracluster medium: emission-weighted measures (Tew), the spectroscopic-like measure (Tsl) proposed by Mazzotta et al. and plasma model fits to the integrated spectrum of the system (Tspec). We find that Tsl tracks Tspec for the entire duration of our mergers, illustrating that it remains a good tool for observational comparison even for highly disturbed systems. Furthermore, the transient temperature increases produced during first and second pericentric passage are 15-40 per cent larger for Tew than for Tsl or T spec. This suggests that the effects of transient temperature increases on σ8 and ΩM derived by Randall et al. are over estimated. Lastly, we examine the X-ray SZ proxy proposed by Kravtsov, Vikhlinin & Nagai (2006) and find that the tight mass scaling relation they predict remains secure through the entire duration of a merger event, independent of projection effects.
Teacher development in nursery schools. The research methodology
La cura della professionalità insegnante nella scuola dell’infanzia. La metodologia della ricerca
Creators: name: Manini, Milena
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The present publication report the findings of a research carried out on issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. The research methodology used by all three contributions is all of a qualitative nature and is inspired by a problematicist/phenomenological approach. The   following procedures were used to gather data: focus groups, questionnaires with open-ended questions and observations of conversational contexts. The first and second strategy, one  immediately following on from the other, represented two phases of the research. This was followed by a third stage involving the socialisation of the  collected data.
description: The present publication report the findings of a research carried out on issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. The research methodology used by all three contributions is all of a qualitative nature and is inspired by a problematicist/phenomenological approach. The   following procedures were used to gather data: focus groups, questionnaires with open-ended questions and observations of conversational contexts. The first and second strategy, one  immediately following on from the other, represented two phases of the research. This was followed by a third stage involving the socialisation of the  collected data.
Supplementary document for Optical back-action on the photothermal relaxation rate - 5042286.pdf
Creators: name: Ma, Jinyong
name: Guccione, Giovanni
name: Lecamwasam, Ruvindha
name: QIN, JIAYI
name: Campbell, Geoff
name: Buchler, Ben
name: Lam, Ping
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: supplementary information
Processing and integration of geochemical data for mineral exploration: Application of statistics, geostatistics and GIS technology.
Creators: name: Harris, Jeff R.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Environmental Sciences.

description: Geographic Information Systems (GIS) used in concert with statistical and geostatistical software provide the geologist with a powerful tool for processing, visualizing and analysing geoscience data for mineral exploration applications. This thesis focuses on different methods for analysing, visualizing and integrating geochemical data sampled from various media (rock, till, soil, humus), with other types of geoscience data. Different methods for defining geochemical anomalies and separating geochemical anomalies due to mineralization from other lithologic or surficial factors (i.e. true from false anomalies) are investigated. With respect to lithogeochemical data, this includes methods to distinguish between altered and un-altered samples, methods (normalization) for identifying lithologic from mineralization effects, and various statistical and visual methods for identifying anomalous geochemical concentrations from background. With respect to surficial geochemical data, methods for identifying bedrock signatures, and scavenging effects are presented. In addition, a new algorithm, the dispersal train identification algorithm (DTIA), is presented which broadly helps to identify and characterize anisotropies in till data due to glacial dispersion and more specifically identifies potential dispersal trains using a number of statistical parameters. The issue of interpolation of geochemical data is addressed and methods for determining whether geochemical data should or should not be interpolated are presented. New methods for visualizing geochemical data using red-green-blue (RGB) ternary displays are illustrated. Finally data techniques for integrating geochemical data with other geoscience data to produce mineral prospectivity maps are demonstrated. Both data and knowledge-driven GIS modeling methodologies are used (and compared) for producing prospectivity maps. New ways of preparing geochemical data for input to modeling are demonstrated with the aim of getting the most out of your data for mineral exploration purposes. Processing geochemical data by sub-populations, either by geographic unit (i.e., lithology) or by geochemical classification and alteration style was useful for better identification of geochemical anomalies, with respect to background, and for assessing varying alteration styles. Normal probability plots of geochemical concentrations based on spatial (lithologic) divisions and Principal Component Analysis (PCA) were found to be particularly useful for identifying geochemical anomalies and for identifying associations between major oxide elements that in turn reflect different alteration styles. (Abstract shortened by UMI.)
The arrival of new teachers as a tool for professional development
L’accoglienza delle neo-insegnanti come strumento di sviluppo della professionalità
Creators: name: Balduzzi, Lucia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The present publication reports the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. This study focuses on teachers’ perceptions on their professionalism conceived as situated construction and of their professional Self. It considers the arrival of a teacher in a new working context as a crucial moment for professional growth and conceptualizes welcoming practices as in-service training opportunities in the framework of collaborative research sustaining reflection at team level.
description: The present publication reports the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. This study focuses on teachers’ perceptions on their professionalism conceived as situated construction and of their professional Self. It considers the arrival of a teacher in a new working context as a crucial moment for professional growth and conceptualizes welcoming practices as in-service training opportunities in the framework of collaborative research sustaining reflection at team level
Supplemental Material for Banerjee et al., 2020
Creators: name: Banerjee, Surya
name: Benji, Shimshon
name: Liberow, Sarah
name: Steinhauer, Josefa
Publisher: name: GSA Journals
Year: 2020
Subjects: subject: 60802 Animal Cell and Molecular Biology
subject: FOS: Biological sciences
subject: 60805 Animal Neurobiology
subject: Genetics
subject: 60410 Neurogenetics
subject: Neuroscience

description: Answers to the guided reading questions posed in the primer article.
Profili di professionalità
Professional profiles
Creators: name: Schenetti, Michela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The present publication report the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. Specifically this article discusses the research findings emerging from a critical reflection on the categories identified through the data analysis. Within this discussion early childhood professionalism is conceptualized as a process which is sustained by ‘formation’, collegiality and reflective practices.
description: The present publication report the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. Specifically this article discusses the research findings emerging from a critical reflection on the categories identified through the data analysis. Within this discussion early childhood professionalism is conceptualized as a process which is sustained by ‘formation’, collegiality and reflective practices.
Gene-targeted disruption of murine Clk2 in ES cells.
Creators: name: Cheng, Alan.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1997
Subjects: subject: Biology, Molecular.

description: The Clk (cdc2-like kinase) family of kinases has been well conserved throughout evolution and includes members from yeast to humans. In mammalian systems, four members have been identified: Clk1, Clk2, Clk3, and Clk4. Although Clk kinases have been implicated in the regulation of alternative splicing, their exact biological function is unknown. Our lab has used a gene targeted approach to ascertain loss-of-gene function of murine Clk kinases. The work presented in this thesis describes the cloning and gene targeted disruption of murine Clk2 in J1 embryonic stem cells. Two lambda phage clones were isolated from a D3 genomic library, using full length human Clk2 cDNA as a probe. Employing primers derived from the genomic sequence, a 581 bp Clk2 partial cDNA fragment was cloned from P19 embryonal carcinoma cells by RT-PCR. Using DNA fragments isolated from the genomic clones, a promoter trap targeting vector was constructed. (Abstract shortened by UMI.)
Supplementary document for Optical back-action on the photothermal relaxation rate - 5042286.pdf
Creators: name: Ma, Jinyong
name: Guccione, Giovanni
name: Lecamwasam, Ruvindha
name: QIN, JIAYI
name: Campbell, Geoff
name: Buchler, Ben
name: Lam, Ping
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: supplementary information
A comparative analysis of verb-movement effects in English and Spanish: Pollock and the Minimalist approach.
Creators: name: Fernández Fuertes, Raquel.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1996
Subjects: subject: Language, Linguistics.

description: Recent developments in linguistic theory carried out within the Principles and Paramater Model and the Minimalist Program provide an excellent framework for the comparison of languages. In this thesis we use said framework to analyze the Verb-movement phenomena of English and Spanish. We specifically concentrate on the Null Subject parameter and the Verb-movement parameter in order to provide a comparative account of word order differences and similarities between English, Spanish and French. We show that the $\lbrack+/-$ strong) agreement differences are responsible for: (1) the relationship between auxiliary verbs and participles in compound verbal constructions; (2) the placement of adverbs in these constructions, and (3) the movement relationships established in existential constructions and other constructions with auxiliaries.
Care and professionality
Cura e professionalità
Creators: name: Panciroli, Chiara
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011

description: The present publication reports the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. In particular this paper’s purpose is detecting those who take care of the teaching profession in relation with the most significant actions and initiatives.
description: The present publication reports the findings of a research carried out on the issues of early childhood professionalism in some Italian province. The study, that is predominantly qualitative, aims to investigate the relation between care practices and professional development within institutions. In particular this paper’s purpose is detecting those who take care of the teaching profession in relation with the most significant actions and initiatives.
Condition Dependence of Sexual Dimorphism in the Antler Fly, Protopiophila litigata
Creators: name: Oudin, Mathew
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2014
Subjects: Aedeagus
Diet
Condition-dependent
Sexual selection

description: In this thesis, I investigate the relationship between two variables for which persistent directional sexual selection is an evolutionary driver: condition dependence and sexual dimorphism. This joint dependence on sexual selection predicts that among traits within a given species, greater dimorphism should be associated with stronger condition dependence. Very few studies have tested this prediction, and those that have focus on species with highly exaggerated and strongly dimorphic traits between the sexes. Here, I quantified variation in a suite of morphological traits in a dipteran species – the antler fly, Protopiophila litigata – in which sexual dimorphism is less extensive. I manipulated condition via different larval diets and then quantified the effects on adult body size and shape in both sexes. Across traits, I found that the extent of sexual dimorphism was positively associated with the strength of condition dependence in males but not in females. These results suggest a shared developmental basis to condition dependence and sexual dimorphism in body shape, and suggest that this has arisen via sexual selection in males despite the absence of extremely dimorphic shared traits.