cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Campylobacter jejuni NCTC 11168 response to protamine sulfate
Creators: name: Hayek, Nabil
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Biology, Microbiology.

description: Campylobacter jejuni is the principal cause of gastroenteritis worldwide. Contaminated chickens is the most important source of human infection by Campylobactor. In its hosts, C. jejuni colonizes the gastrointestinal tract despite the constitutive and induced secretion of cationic antimicrobial peptides (CAMPs). These peptides are a major component of the host's innate immune system and have been found to be effective against different bacterial species including Campylobacter . These observations suggest that Campylobacter has developed mechanisms to evade CAMPs. To test this hypothesis and identify genes presumably involved in adaptation and/or resistance to CAMPs, two approaches were pursued. In the first approach, the transcriptome profile of C. jejuni NCTC 11168 was analyzed upon exposure to increasing concentrations of protamine sulfate, which is a known antimicrobial peptide. In the second approach, a Campylobacter transposon mutant library was screened against two concentrations of protamine. The data obtained from both approaches revealed genes that could be important to overcome the effect of the studied antimicrobial agent and potentially other antimicrobial peptides. The transcriptome profile study unveiled the importance of two genes Cj1721c and Cj0355c, Cj1721c is an outer membrane protein with an unknown function, and Cj0355c, is an essential two-component system regulator. Phenotypic studies demonstrated that the Cj1721c knockout was more resistant to protamine, more motile, and had reduced biofilm-forming ability compared to the wild-type strain. In contrast, the strain that overexpresses Cj0355c was more sensitive to protamine and had greater biofilm-forming ability compared to the wild-type strain. Furthermore, it was attenuated in its ability to colonize the gastrointestinal tract of new born piglets. Moreover, transcriptome profiling of the strain that overexpresses Cj0335c in MH and MEM medium revealed potential pathways that could be regulated by this regulator. This observation suggests that membrane integrity could be sensed by a still unknown sensor and then the signal transferred to Cj0355c, which affects the expression of key genes that are involved in resistance to protamine sulfate. In summary, this study identifies previously uncharacterized genes (CJ1721c and Cj035c) that are involved in the resistance to protamine sulfate and potentially to other antimicrobial peptides. In addition, the performed transposon mutants library screening indicates that Campylobacter jejuni NCTC 11168 can intrinsically evade the effect of protamine sulfate. On the other hand, we showed that C. jeuni does not use the multidrug efflux pump (MATE) to resist the effect of protamine.
Novice Teachers’ Knowledge of Racial Literacies
Creators: name: Chen, Xiufang
name: Tondreau, Amy
name: Lammert, Catherine
name: Hylton, Rhonda
name: Chhabra, Pallavi
name: Goins, Marla R.
name: Yang, Shuling
name: O’Brien, Lisa
name: Arya, Poonam
name: Appleget, Carin
Publisher: name: Taylor & Francis
Year: 2024
Subjects: domains of knowledge mixed-methods novice teachers Racial literacies

description: Grounded in Goodwin and Darity’s domains of knowledge for social justice educators, this study examines novice teachers’ (NTs) racial literacies. Specifically, this research integrates a framework for teacher knowledge with the construct of racial literacies to examine the structure of racially literate teachers’ knowledge and practices. Drawing on this framework, this research entailed designing, piloting, and validating a measure- the teachers’ Knowledge of Racial Literacies survey- of racial literacies. Semi-structured interviews of survey respondents were analyzed to improve the measure and reveal how participants’ racial literacies were developed. Findings indicate that NTs’ racial literacies exist on a continuum; participants demonstrated knowledge in individual domains, but not equally across domains. Additionally, nearly all participants reported few opportunities in teacher education programs to examine race and racism. Findings suggest the continued need for teacher education programs to develop connections between the five domains of knowledge to develop NTs as racially literate educators.
Ben The Innocent
Creators: name: Dasgupta, Sunil
name: Hagerty, Barbara Bradley
Publisher: name: I Hate Politics Podcast
Year: 2024
Subjects: I Hate Politics

description: Episode · I Hate Politics Podcast · In 1988, Benjamine Spencer, a young black man in Dallas, TX, was wrongfully convicted of the murder of Jeffrey young, a young white man, the son of a prominent Ross Perot supporter, by prosecutors trained by Henry Wade, the Wade in Roe v Wade. Washington DC journalist and author Barbara Bradley Hagerty, whose 2018 reporting led to Spencer’s release has now written a book, Bringing Ben Home, (https://a.co/d/6w5uHll) and talks with Sunil Dasgupta about the case and its implications. Music by Alexandria alt-rock band Jackie and the Treehorns.
YUQОRI SINF ОʻQUVCHILАRINING MILLIY MЕNTАLITЕTGА TА'SIRINI ОʻRGАNISHNING PЕDАGОGIK MЕTОDLАRI
Creators: name: Hudаybеrdiyеvа, Mоhirа
Publisher: name: Zenodo
Year: 2024

description: Milliy mеntаlitеtni shаkllаntirish vа tа'sir qilishdа yuqоri sinf о'quvchilаrining о'rni kаttа, chunki bu о'quvchilаr kо'pinchа kеlаjаkdаgi еtаkchilаr vа mаdаniyаt vаkillаri bо'lishlаri mumkin. Ushbu mаqоlаdа yuqоri sinf о'quvchilаrining milliy mеntаlitеtgа qаndаy hissа qо'shishini о'rgаnish uchun qо'llаnilаdigаn pеdаgоgik usullаr kо'rib chiqilаdi, ulаrning mаdаniy qаdriyаtlаrgа, ijtimоiy xulq-аtvоrgа vа jаmоа birligigа tа'sirini bаhоlаydigаn yоndаshuvlаrgа е'tibоr qаrаtilаdi. Sifаtli vа miqdоriy tаdqiqоt usullаrini, qаdriyаtlаrgа аsоslаngаn tа'limni, mаdаniy jihаtdаn sеzgir о'qitish vа murаbbiylik mоdеllаrini о'rgаnish оrqаli tаdqiqоt о'qituvchilаr vа tаdqiqоtchilаr yuqоri sinf о'quvchilаrining jаmiyаt nоrmаlаrigа tа'sirini qаndаy tаhlil qilishlаri vа bоshqаrishlаri mumkinligini tа'kidlаydi.
Washing Away Brokenness: A Narrative Reflection on Emblems of Black Education
Creators: name: Kelly, Kristin
Publisher: name: Bowie State University
Year: 2024

description: Objects serve as symbols and emblems that hold stories of family history.This paper uses narrative to investigate the idea and power of emblemsand symbols. It is a socio-historical exploration of a mid-twentieth-century washboard owned by the grandmother of a now 73-year-old Blackmale. Findings in this study unpack socialization stories and reimagineeducational practices of a Black, multi-generational family in the rural American South in the 1950s–1960s by taking a socio-historical approach to understanding family structure, education, and labor. In thispaper, the author argues how Black women, especially Black Grandmothers in the mid-twentieth century, challenged the understanding oflabor and child-rearing and the impact on Black children’s socializationand education.
A record of late Holocene sea level and human impacts from the southeastern coast of Sri Lanka
Creators: name: Premathilake, Rathnasiri
name: Herath, Jayani
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: AMS radiocarbon-dated palynological evidence from Embilikala Lagoon in Bundala National Park (one of the Ramsar wetland sites) on the southeast coast of Sri Lanka indicates the palaeoenvironmental changes during the last 2,700 years. The persistence of fewer mangroves (e.g. Rhizophoraceae taxa) suggests that sea level low stands occurred between 2,700-1750 cal yr BP. From the later age, the relative sea level rose, and it reached the present sea level at 950 cal yr BP as indicated by the mangrove maximum. At 2,250, 700-400 and 200-150 cal yr BP, the sudden increase in marine dinoflagellate cyst (e.g. Spiniferites mirabilis) and foraminifera (Globigerinoides ruber) suggests increased marine influences. This is consistent with remarkable decrease in mangrove habitats. Between 2,700-950 cal yr BP, severely degraded dry monsoon forests and the minimal level of the mangroves suggest human and marine influences were the critical drivers for changing the major vegetation types along the southeastern coast. Vegetation changes have been drastic over the last millennia.
Joachim Bergmann: Rationalisierungsdynamik und Betriebsgemeinschaft. Die Rolle der japanischen Betriebsgewerkschaften
Creators: name: Seifert, Wolfgang
Publisher: name: ASIEN: The German Journal on Contemporary Asia
Year: 2021

description: ASIEN: The German Journal on Contemporary Asia, Nr. 47 (1993): ASIEN (April)
Incidental littoral cell angioma of the spleen
Creators: name: Tee, May
name: Vos, Patrick
name: Zetler, Peter
name: Wiseman, Sam M
Publisher: name: BioMed Central
Year: 2015

description: Background: Littoral cell angioma (LCA) is a recently described primary vascular neoplasm of the spleen that may be associated with other malignancies and may itself also have malignant potential. Case presentation We present a case of LCA that was discovered incidentally in a 52-year-old woman who presented with biliary colic at the time of consultation for cholecystectomy. This vascular neoplasm was evaluated by ultrasound, CT, MRI, Tc-99m labelled red blood cell scintigraphy, and core biopsy. A splenectomy revealed LCA by pathological evaluation. Post-operative outcome was favourable with no evidence of complication or recurrent disease. Following this case presentation, clinical, radiographic, and pathological features of LCA will be reviewed as well as recent advances in our understanding of this uncommon splenic lesion. Conclusion LCA is a rare, generally benign, primary vascular tumour of the spleen that typically is discovered incidentally. Individuals diagnosed with this tumour must be carefully evaluated to exclude primary, secondary, and synchronous malignancies.
Born of pillage and plunder: English privateers and the birth of the Royal Navy, 1585-1642
Creators: name: Perrella, Lisa
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: History, European.

description: This thesis seeks to examine where and how privateers fit into the composition and development of the Royal Navy, beginning with the outbreak of the Spanish War in 1585 and ending with the beginning of the English civil wars in 1642. A chapter each will be dedicated to Elizabeth I, James VI and I, and Charles I and these will examine the role and use of privateers and compare this against the changes taking place in the Royal Navy at the time. Elizabeth I utilized an effective mix of private and public interests in her Royal Navy, which saw a return under Charles, although it was not fully realized until Parliament took control of the fleets in 1642. In the interim, James I's decision to outlaw privateering, and his reliance on the advice of his unqualified and inexperienced gentleman favourites led to the Royal Navy becoming a highly corrupted and inert force. The potential that James had inherited from Elizabeth in regards to English seapower was unrealized as naval officials motivated by personal avarice both literally and figuratively stripped the Royal Fleet of its power. Charles, with his understanding of the importance of skilled seamen to the English Navy, took the steps needed to reverse this decline albeit through dubious and unconventional means. During the Caroline era privateers again rose to prominence, and their exploits aided in the redevelopment of the navy as an effective arm of government. However, the time of Charles's rule was different than those of both Elizabeth and James, and the King's attempts to return of the Royal Navy to its former power failed to take into account the demands of a population whose cries for a navy to protect shipping went unheeded. These demands would not be fully realized until Parliament took control of the navy, but the foundation for the immensely successful and remarkably powerful Royal Navy of Horatio Nelson was laid in the early modern period under the rule of such monarchs as Queen Elizabeth I and King Charles I.
Towards an Efficient Oil Spill Management System in Qatar’s Oil and Gas Sector: Strengthening Liability and Compensation Requirements
Creators: name: AlQooz, Fatema Salem
Publisher: name: Manara - Qatar Research Repository
Year: 2024
Subjects: classificationCode: 48
subject: Law and legal studies

description: Qatar is a dominant producer in the global oil and gas industry. Qatar is also considered a significant exporter of oil, gas, liquid fuels, and petroleum products. However, there is a risk of oil spills in the oil and gas sector, which if not well managed may result in adverse social, environmental, and economic impacts. Fortunately for Qatar, there have not been significant oil spill incidents in the country. On the other hand, there have been significant incidents in neighboring countries which studies reveal were not properly dealt with in terms of international law standards and best industry practice on oil spill response and management. Thus, bearing in mind that oil spills are dangerous to the environment and the restitution of the affected areas is difficult, are Qatar's laws comprehensive enough to anticipate, prevent and respond to such incidents? Is the current legal framework in Qatar good and effective enough to ensure adequate oil spill response and management if and when such spill incidents occur?This LL.M. Thesis aims to examine the current legal framework adopted in Qatar for oil spill liability and compensation. It explores the meaning, nature and scope of good and effective oil spill detection and management systems; practical gaps in its effective implementation in Qatar; and the extent to which the legal framework can address those gaps in order for Qatar to be ready to deal with and prevent future problems in the oil and gas sector. Addressing the elements of a good and effective detection and management system will strengthen the laws regarding liability and compensation. Finally, this LL.M. Thesis aims to suggest and recommend the best methods to improve the current framework in Qatar.
A Multiwavelength Portrait of the 3C 220.3 Lensed System
Creators: name: Hyman, Sóley Ó
name: Wilkes, Belinda J.
name: Willner, S. P.
name: Kuraszkiewicz, Joanna
name: Azadi, Mojegan
name: Worrall, D. M.
name: Foord, Adi
name: Vegetti, Simona
name: Ashby, Matthew L. N.
name: Birkinshaw, Mark
name: Fassnacht, Christopher
name: Haas, Martin
name: Stern, Daniel
Publisher: name: Maryland Shared Open Access Repository
Year: 2024
Subjects: Astrophysics - Astrophysics of Galaxies

description: The 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy (“galaxy A,” zA = 0.6850) lensing a background submillimeter galaxy (zSMG = 2.221). New spectra from MMT/Binospec confirm that the companion galaxy (“galaxy B”) is part of the lensing system with zB = 0.6835. New threecolor HST data reveal a full Einstein ring and allow a more precise lens model. The new HST images also reveal extended emission around galaxy A, and the spectra show extended [O II] emission with irregular morphology and complex velocity structure. All indications are that the two lensing galaxies are a gravitationally interacting pair. Strong [O II] emission from both galaxies A and B suggests current star formation, which could be a consequence of the interaction. This would indicate a younger stellar population than previously assumed and imply smaller stellar masses for the same luminosity. The improved lens model and expanded spectral energy distributions have enabled better stellar-mass estimates for the foreground galaxies. The resulting dark matter fractions are ?0.8, higher than previously calculated. Deeper Chandra imaging shows extended X-ray emission but no evidence for a point X-ray source associated with either galaxy. The detection of X-rays from the radio lobes of 3C 220.3 allows an estimate of ?3 nT for the magnetic fields in the lobes, a factor of ?3 below the equipartition fields, as typical for radio galaxies.
Disability Activism and Advocacy - 'We Are Everywhere' Zine
Creators: name: Howard, Annabelle
name: Crouch, Kathryn
name: Read, Stuart
Publisher: name: BathSPAdata
Year: 2025
Subjects: classificationCode: 420318
subject: Disability Studies

description: This research project was about disabled people’s experiences of activism and advocacy.We explored the barriers disabled people face when taking part in activism and advocacy, along with how this can be improved. The research was completed through an online survey and creative 'zine' (magazine) workshops engaging people throughout the South West.‘We Are Everywhere’ is a zine that was created as part of the project. It was produced using artwork made in online group sessions and quotes from conversations and an online survey. The zine is available to download as an accessible pdf file, the zine contains content written in long form and easy read format. A video recording with audio description of the zine, page by page, can also be accessed in the 'Disability Activism and Advocacy' collection on BSU data. If you would like a printed copy of the zine please email: wearethepeople@bathspa.ac.uk.We know that the formats we have made available will not be accessible for everyone. Please get in touch (email: wearethepeople@bathspa.ac.uk) if you can recommend other formats that we could use for sharing the outcomes of this project.
Disciplinary Differences in STEM Faculty and Student Use of Learning Objectives: Implications for Teaching and Learning
Creators: name: Leupen, Sarah
name: Williams, Tory
name: Hodges, Linda C.
name: Ott, Laura E.
name: Anderson, Eric C.
name: Cui, Lili
name: Nanes, Kalman M.
name: Perks, H. Mark
name: Wagner, Cynthia
Publisher: name: Taylor and Francis
Year: 2024
Subjects: subject: Chemistry
subject: Instructional strategies
subject: Assessment
subject: Mathematics
subject: FOS: Mathematics
subject: Biology
subject: Physics

description: Using learning objectives to guide course design is often considered an educational best practice, but little research exists that explores how students use them over time and across courses. We surveyed students on their use and perceived value of learning objectives as the semester progressed across four science, technology, engineering, and mathematics (STEM) disciplines, examined students’ ability to match exam questions with learning objectives, and analyzed how their course performance related to these qualities. We also gathered instructors’ information on their implementation of learning objectives in these courses. We identified distinct disciplinary differences both in students’ use and perceived benefit of learning objectives and in instructors’ implementation of them. Students in less quantitatively focused courses, i.e., biology and organic chemistry, reported valuing and using learning objectives more than students in more quantitatively focused math and physics courses. Students’ ability to match learning objectives with exam questions, however, positively correlated with exam score and final course grade in all our study courses. Our results have implications for considering disciplinary practices for use of learning objectives as instructors design and implement courses, educational researchers plan studies, and assessment specialists formulate institutional assessment plans.
Towards Feature Detection based on Morphology of Objects on Image
Creators: name: Solis Montero, Andres
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Computer Science.

description: This thesis describes a new line segment detection and extraction algorithm for computer vision, image segmentation, and shape recognition applications. This algorithm uses a compilation of different image processing techniques such as normalization, Gaussian smooth, automatic threshold, and Laplace edge detection to extract edge contours from color input images. Contours of each connected component are divided into short segments, which are classified by their orientation into about ten discrete categories. Straight lines are recognized as the minimal number of such consecutive short segments with the same direction. This solution indeed gives us more precise line segments (including line endpoints) and requires a shorter time than the widely used Hough Transform algorithm for detecting line segments given any orientation and location inside an image. Its easy implementation, simplicity, parameter minimization, speed, ability to split an edge into straight line segments using the actual morphology of objects, accuracy and the use of OpenCV library are key features and advantages of the proposed approach. The algorithm was tested on several simple shape images as well as on real pictures, yielding a more accurate resemblance of straight lines in accordance with the human perception of line taxonomy. The line detection algorithm introduced here requires few parameters and is robust to standard image transformations such as rotation, scaling and translation. Furthermore, some of these parameters are selected by automatic unsupervised methods, thus improving the expected algorithm outcome in terms of the stated problem. Several experimental results are presented to support the validity of the algorithm.
On the stoichiometry of zirconium carbide.
Creators: name: Gasparrini, Claudia
name: Rana, Dhan-Sham
name: Le Brun, Niccolò
name: Horlait, Denis
name: Markides, Christos N
name: Farnan, Ian
name: Lee, William E
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: The dependencies of the enhanced thermomechanical properties of zirconium carbide (ZrCx) with sample purity and stoichiometry are still not understood due to discrepancies in the literature. Multiple researchers have recently reported a linear relation between the carbon to zirconium atomic ratio (C/Zr) and the lattice parameter, in contrast with a more established relationship that suggests that the lattice parameter value attains a maximum value at a C/Zr ~ 0.83. In this study, the relationship between C/Zr atomic ratio and the lattice parameter is critically assessed: it is found that recent studies reporting the thermophysical properties of ZrCx have unintentionally produced and characterised samples containing zirconium oxycarbide. To avoid such erroneous characterization of ZrCx thermophysical properties in the future, we propose a method for the accurate measurement of the stoichiometry of ZrCx using three independent experimental techniques, namely: elemental analysis, thermogravimetric analysis and nuclear magnetic resonance spectroscopy. Although a large scatter in the results (ΔC/Zr = 0.07) from these different techniques was found when used independently, when combining the techniques together consistent values of x in ZrCx were obtained.
The internal clock of many-body (de-)localization
Creators: name: Evers, Ferdinand
name: Bera, Soumya
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 530 Physik

description: After a decade of many claims to the opposite, there now is a growing consensus that generic disordered quantum wires, e.g. the XXZ-Heisenberg chain, do not exhibit many-body localization (MBL) - at least not in a strict sense within a reasonable window of disorder values W. Specifically, computational studies of short wires exhibit an extremely slow but unmistakable flow of physical observables with increasing time and system size (``creep") that is consistently directed away from (strict) localization. Our work sheds fresh light on delocalization physics: Strong sample-to-sample fluctuations indicate the absence of a generic time scale, i.e. of a naive ``clock rate"; however, the concept of an ``internal clock" survives, at least in an ensemble sense. Specifically, we investigate the relaxation of the imbalance I(t) and its temporal fluctuations F(t), the entanglement and Renyi entropies, Se(t) and S2(t), in a 1D system of interacting disordered fermions. We observe that adopting Se(t),S2(t) as a measure for the internal time per sample reduces the sample-to-sample fluctuations but does not eliminate them. However, a (nearly) perfect collapse of the average I¯¯¯(t) and F¯¯¯¯(t) for different W is obtained when plotted against S¯¯¯e(t) or S¯¯¯2(t), indicating that the average entropy appropriately models the ensemble-averaged internal clock. We take the tendency for faster-than-logarithmic growth of S¯¯¯e(t) together with smooth dependency on W of all our observables within the entire simulation window as support for the cross-over scenario, discouraging an MBL transition within the traditional parametric window of computational studies.
Understanding animal welfare
Creators: name: Fraser, David
Publisher: name: BioMed Central
Year: 2015

description: Summary: In debates about the welfare of animals, different people have tended to emphasize different concerns. Some emphasize the basic health and functioning of animals, especially freedom from disease and injury. Others emphasize the "affective states" of animals – states like pain, distress and pleasure that are experienced as positive or negative. Others emphasize the ability of animals to live reasonably natural lives by carrying out natural behaviour and having natural elements in their environment. These concerns constitute different criteria that people use to assess animal welfare. The criteria overlap substantially but are sufficiently independent that the single-minded pursuit of any one criterion may lead to poor welfare as judged by the others. The different criteria reflect different sets of values that have been in conflict since the early debates about human welfare during the Industrial Revolution, with one side valuing a simple, natural life while the other values progress, productivity, and a life improved by science and technology. Scientific research on animal welfare has been based on the various criteria of welfare. Such research has helped to identify and solve animal welfare problems through improved housing and management of animals. However, the research has not resolved the differences attributable to the different criteria of animal welfare. Rather, the different criteria have provided the rationale for diverse approaches to animal welfare research. Thus, our understanding of animal welfare is both values-based and science-based. In this respect, animal welfare is like many other topics of "mandated" science such as food safety and environmental sustainability where the tools of science are used within a framework of values.
interdisziplinäre Vermittlung von Geschichte und Politik Ost- und Südostasiens - zum Münchner Pilotprojekt
Creators: name: Kindermann, Gottfried-Karl
Publisher: name: ASIEN: The German Journal on Contemporary Asia
Year: 2021

description: ASIEN: The German Journal on Contemporary Asia, Nr. 65 (1997): ASIEN (Oktober)
A place for (socio)linguistics in audio deepfake detection and discernment: Opportunities for convergence and interdisciplinary collaboration
Creators: name: Mallinson, Christine
name: Janeja, Vandana
name: Evered, Chloe
name: Khanjani, Zahra
name: Davis, Lavon
name: Bhalli, Noshaba Nasir
name: Nwosu, Kifekachukwu
Publisher: name: Wiley
Year: 2024

description: Deepfakes, particularly audio deepfakes, have become pervasive and pose unique, ever-changing threats to society. This paper reviews the current research landscape on audio deepfakes. We assert that limitations of existing approaches to deepfake detection and discernment are areas where (socio)linguists can directly contribute to helping address the societal challenge of audio deepfakes. In particular, incorporating expert knowledge and developing techniques that everyday listeners can use to avoid deception are promising pathways for (socio)linguistics. Further opportunities exist for developing benevolent applications of this technology through generative AI methods as well.
An Exploration of U.S. School Librarians' Beliefs About and Implementation of Culturally Responsive Literacy Teaching
Creators: name: Davis-Slade, Rebekah
Publisher: name: Maryland Shared Open Access Repository
Year: 2024
Subjects: Culturally responsive teaching
Literacy
Cultural competency
School librarians
Diversity

description: Public-school student enrollment is ever changing. Therefore, school librarians must adapt their instructional practices to meet the needs of culturally diverse student populations. This study employed a survey to explore U.S. school librarians’ beliefs about culturally responsive teaching (CRT), as well as the CRT practices used within their learning environments. Therefore, my research questions were: 1.) What do U.S. school librarians believe about culturally responsive teaching? 2.) In what ways do U.S. school librarians learn about culturally responsive teaching? 3.) What culturally responsive teaching practices are most frequently used by U.S. school librarians? 4.) Is there a relationship between what U.S. school librarians believe about culturally responsive teaching (CRT) and the frequency of implementation? 5.) How do U.S. school librarians implement culturally responsive literacy instruction in their school? 6.) What barriers do U.S. school librarians see for implementing culturally responsive literacy instruction in their library media center? The 159 U.S. school librarians were recruited through the American Association of School Librarians (AASL) ALA Connect forums and Facebook groups for school librarians. The structured survey instrument collected close-ended and two open-ended responses. The close-ended survey responses underwent descriptive and inferential data analysis. In addition to quantitative measures, the open-ended responses were analyzed qualitatively. The results suggest the participants endorsed the belief that culturally responsive school librarians challenge the everyday ways of knowing, promote social justice, validate diverse populations and learning styles, connect home and school knowledge, and maintain high academic expectations. While it can be assumed that a higher level of endorsement for these CRT tenets will be reflected in more frequent implementation, this was not always the case. Open-ended responses illuminated factors standing in the way of school librarians implementing culturally responsive literacy instructional practices, such as limited training, funding, and access to information about families and student home lives. The findings from this dissertation add to the growing body of empirical research focused on culturally responsive teaching within the context of school librarians and their role in literacy instruction.
Synthesis of glycolipids inspired by Fucus distichus and natural product isolation and characterization of Euphorbia lancifolia
Creators: name: Jewell, Linda Elizabeth
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Chemistry, Organic.

description: The ethanolic extracts of Fucus distichus, a freshwater brown algae harvested from Ungava Bay in northern Quebec, have demonstrated antiviral and antibiotic activity. The major component and potential active molecule from this seaweed was identified as a glycolipid consisting of beta- D-galactose linked to two o-linolenic acid chains via a glycerol unit. The synthesis of this glycolipid, as well as a number of derivatives, is described to investigate their antibiotic and antiviral activity relative to the natural product. One major family of analogues explored includes C-linked glycolipids, where a carbon-carbon linkage replaces the metabolically unstable C-O ester bond between the sugar and the glycerol in the natural product. The natural product, as well as eight other analogues were synthesized. Bioactivity data for some of the compounds is described. In a second project, an investigation into the major constituents of Euphorbia lancifolia (Ixbut) was undertaken. Although there have been no in-depth reported chemical studies of E. lancifolia to date, traditional medicine in Latin America claims that the plant leaves can be used in herbal tea as a galactogogue, a drug which induces lactation. The goal of this study was to identify the major constituents of E. lancifolia as the first step in investigating the claims regarding the plant's biological activity. Nine compounds, including the novel triterpene derivative beta-amyryl ferulate, were identified and isolated. Biological assays testing the ability of these compounds to interact with the metabolism of dopamine, an important hormone in lactation, will be undertaken shortly.
Mechthild Leutner (Hrsg): Politik, Wirtschaft, Kultur: Studien zu den deutschchinesischen Beziehungen
Creators: name: Gendo, Sari Dewi
Publisher: name: ASIEN: The German Journal on Contemporary Asia
Year: 2021

description: ASIEN: The German Journal on Contemporary Asia, Nr. 65 (1997): ASIEN (Oktober)
Du mineur à l'adulte: Lorsque l'âge ne suffit plus pour rester mineur Étude sur l'assujettissement de mineurs à des sentences pour adultes au Québec, dans le cadre de la Loi sur le système de justice pénal pour adolescents (2002)
Creators: name: Fournier, Jenny
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Sociology, Criminology and Penology.

description: Cette thèse constitue une étude de la procédure d'assujettissement à travers des décisions emises par les tribunaux de la jeunesse, au Québec. C'est en abordant les décisions de la Cour comme des outils de communications, à travers lesquelles la justice des mineurs parle d'elle-même, que l'auteure s'intéresse à la façon dont elle exposera ce qu'elle entend par jeunes contrevenants à adresser à la justice des mineurs et jeunes contrevenants à adresser à la justice des adultes. Une approche d'inspiration foucaldienne, basée sur le concept de dispositif, permettra à l'auteure de montrer la construction d'identités à l'intérieur des documents de la Cour. Par ce procédé, elle identifie que la procédure d'assujettissement produit trois types de figures de sujets juridiques, soit : "jeune contrevenant corrigible ", le " contrevenant corrigible " et le "contrevenant incorrigible ". L'auteure expose que la distinction " corrigibilité " vs " incorrigibilité " constitue l'enjeu central dans la sélection des sujets que la justice des mineurs conservera ou non sous son aile. Cela montre que la justice des mineurs est davantage en train de se redéfinir à partir d'un mode de gestion dans lequel la question du risque serait un enjeu plus préponderant que celui de l'aspect punitif.
Forecasting the 2017/2018 seasonal influenza epidemic in England using multiple dynamic transmission models: a case study.
Creators: name: Birrell, Paul J
name: Zhang, Xu-Sheng
name: Corbella, Alice
name: Van Leeuwen, Edwin
name: Panagiotopoulos, Nikolaos
name: Hoschler, Katja
name: Elliot, Alex J
name: McGee, Maryia
name: Lusignan, Simon De
name: Presanis, Anne M
name: Baguelin, Marc
name: Zambon, Maria
name: Charlett, André
name: Pebody, Richard G
name: Angelis, Daniela De
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Forecasting
Seasonal Influenza
Gp Consultations
Transmission Models
Nowcasting
Intensive Care Admissions

description: BACKGROUND:Since the 2009 A/H1N1 pandemic, Public Health England have developed a suite of real-time statistical models utilising enhanced pandemic surveillance data to nowcast and forecast a future pandemic. Their ability to track seasonal influenza and predict heightened winter healthcare burden in the light of high activity in Australia in 2017 was untested. METHODS:Four transmission models were used in forecasting the 2017/2018 seasonal influenza epidemic in England: a stratified primary care model using daily, region-specific, counts and virological swab positivity of influenza-like illness consultations in general practice (GP); a strain-specific (SS) model using weekly, national GP ILI and virological data; an intensive care model (ICU) using reports of ICU influenza admissions; and a synthesis model that included all data sources. For the first 12 weeks of 2018, each model was applied to the latest data to provide estimates of epidemic parameters and short-term influenza forecasts. The added value of pre-season population susceptibility data was explored. RESULTS:The combined results provided valuable nowcasts of the state of the epidemic. Short-term predictions of burden on primary and secondary health services were initially highly variable before reaching consensus beyond the observed peaks in activity between weeks 3-4 of 2018. Estimates for R0 were consistent over time for three of the four models until week 12 of 2018, and there was consistency in the estimation of R0 across the SPC and SS models, and in the ICU attack rates estimated by the ICU and the synthesis model. Estimation and predictions varied according to the assumed levels of pre-season immunity. CONCLUSIONS:This exercise successfully applied a range of pandemic models to seasonal influenza. Forecasting early in the season remains challenging but represents a crucially important activity to inform planning. Improved knowledge of pre-existing levels of immunity would be valuable.
C-S-H Pore Size Characterization Via a Combined Nuclear Magnetic Resonance (NMR)-Scanning Electron Microscopy (SEM) Surface Relaxivity Calibration.
Creators: name: Naber, Christoph
name: Kleiner, Florian
name: Becker, Franz
name: Nguyen-Tuan, Long
name: Rößler, Christiane
name: Etzold, Merlin A
name: Neubauer, Jürgen
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Calcium Silicate Hydrate
Tricalcium Silicate
Scanning Electron Microscopy (Sem)
Nuclear Magnetic Resonance (Nmr)
Pore Size Distribution

description: A new method for the nuclear magnetic resonance (NMR) surface relaxivity calibration in hydrated cement samples is proposed. This method relies on a combined analysis of 28-d hydrated tricalcium silicate samples by scanning electron microscopy (SEM) image analysis and 1H-time-domain (TD)-NMR relaxometry. Pore surface and volume data for interhydrate pores are obtained from high resolution SEM images on surfaces obtained by argon broad ion beam sectioning. These data are combined with T2 relaxation times from 1H-TD-NMR to calculate the systems surface relaxivity according to the fast exchange model of relaxation. This new method is compared to an alternative method that employs sequential drying to calibrate the systems surface relaxivity.
Association of alleles carried at TNFA -850 and BAT1 -22 with Alzheimer's disease
Creators: name: Gnjec, Anastazija
name: D'Costa, Katarzyna J
name: Laws, Simon M
name: Hedley, Ross
name: Balakrishnan, Kelvin
name: Taddei, Kevin
name: Martins, Georgia
name: Paton, Athena
name: Verdile, Giuseppe
name: Gandy, Samuel E
name: Broe, G A
name: Brooks, William S
name: Bennett, Hayley
name: Piguet, Olivier
name: Price, Patricia
name: Miklossy, Judith
name: Hallmayer, Joachim
name: McGeer, Patrick L
name: Martins, Ralph N
Publisher: name: BioMed Central
Year: 2015

description: Background: Inflammatory changes are a prominent feature of brains affected by Alzheimer's disease (AD). Activated glial cells release inflammatory cytokines which modulate the neurodegenerative process. These cytokines are encoded by genes representing several interleukins and TNFA, which are associated with AD. The gene coding for HLA-B associated transcript 1 (BAT1) lies adjacent to TNFA in the central major histocompatibility complex (MHC). BAT1, a member of the DEAD-box family of RNA helicases, appears to regulate the production of inflammatory cytokines associated with AD pathology. In the current study TNFA and BAT1 promoter polymorphisms were analysed in AD and control cases and BAT1 mRNA levels were investigated in brain tissue from AD and control cases. Methods Genotyping was performed for polymorphisms at positions -850 and -308 in the proximal promoter of TNFA and position -22 in the promoter of BAT1. These were investigated singly or in haplotypic association in a cohort of Australian AD patients with AD stratified on the basis of their APOE ε4 genotype. Semi-quantitative RT-PCR was also performed for BAT1 from RNA isolated from brain tissue from AD and control cases. Results APOE ε4 was associated with an independent increase in risk for AD in individuals with TNFA -850*2, while carriage of BAT1 -22*2 reduced the risk for AD, independent of APOE ε4 genotype. Semi-quantitative mRNA analysis in human brain tissue showed elevated levels of BAT1 mRNA in frontal cortex of AD cases. Conclusion These findings lend support to the application of TNFA and BAT1 polymorphisms in early diagnosis or risk assessment strategies for AD and suggest a potential role for BAT1 in the regulation of inflammatory reactions in AD pathology.
Dietary lipids fuel GPX4-restricted enteritis resembling Crohn's disease.
Creators: name: Mayr, Lisa
name: Grabherr, Felix
name: Schwärzler, Julian
name: Reitmeier, Isabelle
name: Sommer, Felix
name: Gehmacher, Thomas
name: Niederreiter, Lukas
name: He, Gui-Wei
name: Ruder, Barbara
name: Kunz, Kai T R
name: Tymoszuk, Piotr
name: Hilbe, Richard
name: Haschka, David
name: Feistritzer, Clemens
name: Gerner, Romana R
name: Enrich, Barbara
name: Przysiecki, Nicole
name: Seifert, Markus
name: Keller, Markus A
name: Oberhuber, Georg
name: Sprung, Susanne
name: Ran, Qitao
name: Koch, Robert
name: Effenberger, Maria
name: Tancevski, Ivan
name: Zoller, Heinz
name: Moschen, Alexander R
name: Weiss, Günter
name: Becker, Christoph
name: Rosenstiel, Philip
name: Kaser, Arthur
name: Tilg, Herbert
name: Adolph, Timon E
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: The increased incidence of inflammatory bowel disease (IBD) has become a global phenomenon that could be related to adoption of a Western life-style. Westernization of dietary habits is partly characterized by enrichment with the ω-6 polyunsaturated fatty acid (PUFA) arachidonic acid (AA), which entails risk for developing IBD. Glutathione peroxidase 4 (GPX4) protects against lipid peroxidation (LPO) and cell death termed ferroptosis. We report that small intestinal epithelial cells (IECs) in Crohn's disease (CD) exhibit impaired GPX4 activity and signs of LPO. PUFAs and specifically AA trigger a cytokine response of IECs which is restricted by GPX4. While GPX4 does not control AA metabolism, cytokine production is governed by similar mechanisms as ferroptosis. A PUFA-enriched Western diet triggers focal granuloma-like neutrophilic enteritis in mice that lack one allele of Gpx4 in IECs. Our study identifies dietary PUFAs as a trigger of GPX4-restricted mucosal inflammation phenocopying aspects of human CD.
Application of chemical kinetics to mercury cycling in the aquatic environment: Photoreduction of mercury(II) and binding of mercury(II) and methylmercury(+) to natural ligands
Creators: name: Ababneh, Fuad A
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Chemistry, General.

description: The thesis comprises four main chapters on chemical reactions and kinetics of some of the processes involved in the global mercury cycle. In the first chapter, the UVA irradiation of aqueous acidic mercuric chloride in the presence of large excess of Fe(III) organic diacid complexes results in partial reduction of the mercuric ion to elemental mercury. The pseudo-first-order rate constant (k) for photoreduction reaction is pH-dependent. Similar results were obtained using visible irradiation although the rates were ca. 10 times slower. The mechanism of photoreduction is inferred to involve reaction of Hg(II) with a secondary photoproduct, the strongly reducing radical anion CO 2-•. No other previous reports have suggested the involvement of this radical in mercury reduction. In the presence of dissolved oxygen, competition for CO2-• between Hg(II) and O2 reduces the rate and efficiency of mercuric ion reduction. The O2-•/HO2 products do not reduce Hg(II). On the contrary, their disproportionation leads to the formation of H2O2 which causes a slow reoxidation of Hg(0). In the second chapter, the reaction rate of UVA photoreduction of Hg(II) ions by fulvic and humic acids was found to have higher values in the pH range of 5 to 6 which is relevant to most aquatic environments, within this pH range, speciation calculations show that most of Hg(II) will bind to DOC. The effects of environmentally relevant parameters such as Hg(II)/HS ratio, and chloride concentration were investigated and the likely mechanism identified. The interaction of DOC with Hg species is not only limited to photoreactions but also the complexation reaction affects the bioavailability and speciation of Hg. This was the topic of the last two chapters. The kinetic stability of Hg-HS and McHg-HS complexes was characterized by different combined techniques; the competitive ligand exchange method (CLEM) combined with inductively coupled plasma-mass spectrometer (CLEM-ICP-MS) and the tangential flow ultrafiltration (TFUF) combined to CLEM-ICP-MS. The Hg-HS complexes can be described by at least two kinetically distinguished components; the more inert (slow) with a dissociation rate constant in the order of 10-5 s -1, and a labile component with a dissociation rate constant in the order of 10-3 s-1, protons (H+) was found to compete with Hg2+ for the strong binding sites, Hg/HS concentration ratio also was an important parameter, when [Hg 2+] was high then the strong binding sites was saturated and the excess Hg bound to the weak sites. (Abstract shortened by UMI.)
Peter Kreuzer: Generäle in der Politik. Politische Kultur, Streitkräftekultur und das Verhalten militärischer Eliten im politischen Raum: China - Japan - Thailand
Creators: name: Schmidt, Dirk
Publisher: name: ASIEN: The German Journal on Contemporary Asia
Year: 2021

description: ASIEN: The German Journal on Contemporary Asia, Nr. 65 (1997): ASIEN (Oktober)
Mechanics of Psoas Tendon Snapping. A Virtual Population Study.
Creators: name: Audenaert, Emmanuel A
name: Khanduja, Vikas
name: Claes, Peter
name: Malviya, Ajay
name: Steenackers, Gunther
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Tendon Mechanics
Muscle Wrapping
Ischiofemoral Impingement
Virtual Population
Geometric Morphoinetric Analysis

description: Internal snapping of the psoas tendon is a frequently reported condition, especially in young adolescents involved in sports. It is defined as an increased tendon excursion over bony or soft tissue prominence causing local irritation and inflammation of the tendon leading to groin pain and often is accompanied by an audible snap. Due to the lack of detailed dynamic visualization means, the exact mechanism of the condition remains poorly understood and different theories have been postulated related to the etiology and its location about the hip. In the present study we simulated psoas tendon behavior in a virtual population of 40,000 anatomies and compared tendon movement during combined abduction, flexion and external rotation and back to neutral extension and adduction. At risk phenotyopes for tendon snapping were defined as the morphologies presenting with excess tendon movement. There were little differences in tendon movement between the male and female models. In both populations, abnormal tendon excursion correlated with changes in mainly the femoral anatomy (male r = 0.72, p < 0.001, female r = 0.66, p < 0.001): increased anteversion and valgus as well as a decreasing femoral offset and ischiofemoral distance. The observed combination of shape components correlating with excess tendon movement in essence presented with a medial positioning of the minor trochanter. This finding suggest that psoas snapping and ischiofemoral impingement are possibly two presentations of a similar underlying rotational dysplasia of the femur.