cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rock mass characterisation and the hydro-mechanical behaviour within interbedded low permeability reservoirs during hydraulic fracturing
Creators: name: MacKay, Mason Keays
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Engineering--Petroleum

description: Classification of the subsurface using a rock mass framework provides insight into reservoir behaviour because the combined characteristics of intact rock and the natural fracture system can be quantified. Rock mass classification is useful for reservoir characterisation because the primary factors affecting deformation and flow in a reservoir are included in the classification scheme, which can be applied across a range of rock formations. In this dissertation, heterogeneous low-permeability (‘tight’) reservoirs are classified according to their geological strength index value. This is achieved through outcrop mapping, microseismic analysis, core logging, wireline log analysis and geomechanical testing. These methods are applied to the prolific tight gas/oil Duvernay Shale reservoir in Western Canada. The rock mass classification framework is then used to assist in understanding how fluid propagates in the reservoir during hydraulic fracturing. Rather than a static diffusive process, the movement is hypothesised to occur episodically and dynamically in much the same way as the natural earthquake cycle moves fluid through the rock mass. Evidence of this behaviour is provided from microseismic observations during hydraulic fracturing treatments and through a novel technique to analyse pressure fluctuations during the stimulation treatment in the time-frequency domain. This method provides insight into fluid flow mechanisms occurring in fractured shale and tight rock reservoirs, and can be used to constrain before-closure flow-regime interpretations. A pressure-dependent rock mass Biot’s coefficient is derived from previously published empirical methods and verified through distinct element modelling techniques. Results from this study indicate that a critical fluid pressure can be achieved where the fracture system is fully connected and rock mass mobilization occurs. Under lower fluid pressures, pressure diffusion is more likely to occur rather than localized flow. The stiffness of the intact rock is observed to play an important role on how fluid becomes segmented within the reservoir. This research advances the concept of rock mass characterisation in low-permeability petroleum reservoirs and demonstrates how it can be used to understand the dynamic geomechanical system.
Mapping the Disaster Competency Landscape in Undergraduate Nursing: A Case Study of Nursing Educators in British Columbia, Canada
Creators: name: McKenzie, Wendy M.
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Nursing
subject: FOS: Health sciences
subject: disaster
subject: Education
subject: Education--Health

description: The province of British Columbia in Canada is experiencing an increase in both natural and human made disasters as evidenced by recent forest fires, floods, and avalanches. Nurses are known to be one of the largest groups of health care workers and are often challenged to care for members of the public during these events. Many nurses have stated that they do not have enough education to provide quality care in a disaster role, as they received no education in their undergraduate nursing degrees. This qualitative case study explored four questions through the lens of ten British Columbia Nursing Educators using an adult learning framework. These questions are: How are disaster competencies currently taught? How do educators determine relevant content, learning activities, outcomes, and assessment criteria? What challenges, supports, and resources that have influenced educators in designing and integrating disaster competencies into their curricula? What recommendations can be offered for other educators? The findings from this study indicated that disaster nursing knowledge is taught either within an existing global health course or rarely is levelled throughout the program. Content is determined by the educator and is delivered by expert guest speakers, as well as didactic lectures, or simulation; however, no specific model is used. Many challenges exist to educators, which include lack of resources, workload, and instructor knowledge. Recommendations include the development of a British Columbia generalist undergraduate disaster nursing model to enhance educator and student learning and the development of context specific content.
title: PET/CT-guided biopsy: single center experience.
Creators: name: D'Acierno, ludovica
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Retrospective
subject: Neoplasia
subject: Biopsy
subject: PET-CT
subject: Oncology
subject: Nuclear medicine
subject: Interventional non-vascular
subject: Interventional Radiology
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Percutaneous image-guided biopsies (PBs) are currently recommended and embraced as a minimally invasive diagnostic tool to achieve pathological tissue characterization in the management of oncologic patients, by confirming the diagnosis of cancer...
Formation times, mass growth histories and concentrations of dark matter haloes
Creators: name: Giocoli, Carlo
name: Tormen, Giuseppe
name: Sheth, Ravi K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a simple model for estimating the mass growth histories of dark matter halos. The model is based on a fit to the formation time distribution, where formation is defined as the earliest time that the main branch of the merger tree contains a fraction f of the final mass M . Our analysis exploits the fact that the median formation time as a function of f is the same as the median of the main progenitor mass distribution as a function of time. When coupled with previous work showing that the concentration c of the final halo is related to the formation time tf associated with f \sim 0.04, our approach provides a simple algorithm for estimating how the distribution of halo concentrations may be expected to depend on mass, redshift and the expansion history of the background cosmology. We also show that one can predict log10 c with a precision of about 0.13 and 0.09 dex if only its mass, or both mass and tf are known. And, conversely, one can predict log10 tf from mass or c with a precision of 0.12 and 0.09 dex, approximately independent of f. Adding the mass to the c-based estimate does not result in further improvement. These latter results may be useful for studies which seek to compare the age of the stars in the central galaxy in a halo with the time the core was first assembled.
description: 15 pages, 15 figures, MNRAS accepted (minor changes + 1 figure and some references)
Breast Cancer Screening Recommendations for Transgender and Gender Diverse Patients: A Knowledge and Familiarity Assessment of Primary Care Practitioners
Creators: name: Carroll, Evelyn F.
name: Davidge-Pitts, Caroline
name: St Amand, Colt M.
name: Woodard, Genevieve A.
Publisher: name: Springer Nature
Year: 2023

description:
Breast cancer screening recommendations for transgender and gender diverse (TGD) patients have only been recently developed and many primary care practitioners (PCPs) are unaware of these specific recommendations. The aim of this study is to assess the level of familiarity and knowledge PCPs have with breast cancer screening recommendations for TGD patients. An anonymous survey was distributed to primary care physicians, primary care advanced practice practitioners, and internal medicine and family medicine residents at three academic medical systems in the United States (Mayo Clinic, University of Michigan, University of Texas – Medical Branch). Survey questions assessed the familiarity and knowledge base of TGD breast cancer screening recommendations, training and experience with TGD patients, and basic demographics of the practitioners. Of the 95 survey respondents, only 35% of respondents were aware that breast cancer screening recommendations for TGD patients existed. PCPs who had increased transgender specific health care training and direct clinical exposure to TGD patients demonstrated significantly higher levels of screening recommendation awareness. Two-thirds of respondents received TGD specific medical education during training or medical career and those who had increased transgender specific medical education or direct clinical exposure to TGD patients demonstrated significantly higher levels of screening recommendation awareness. Awareness of breast cancer screening recommendations for TGD patients is low among PCPs and varied based on the practitioner’s prior TGD education and experience. Up-to-date breast cancer screening recommendations for TGD patients should be readily available across multiple platforms, target key audiences, and integrated into transgender health educational curriculums to maximize awareness of these important recommendations.
The Lyman-alpha forest in a blazar-heated Universe
Creators: name: Puchwein, Ewald
name: Pfrommer, Christoph
name: Springel, Volker
name: Broderick, Avery E.
name: Chang, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It has been realised only recently that TeV emission from blazars can significantly heat the intergalactic medium (IGM) by pair-producing high-energy electrons and positrons, which in turn excite vigorous plasma instabilities, leading to a local dissipation of the pairs' kinetic energy. In this work, we use cosmological hydrodynamical simulations to model the impact of this blazar heating on the Lyman-alpha forest at redshifts z~2-3. We find that blazar heating produces an inverted temperature-density relation in the IGM and naturally resolves many of the problems present in previous simulations of the forest that included photoheating alone. In particular, our simulations with blazar heating simultaneously reproduce the observed effective optical depth and temperature as a function of redshift, the observed probability distribution functions of the transmitted flux, and the observed flux power spectra, over the full redshift range 2
description: 18 pages, 13 figures, added an analysis in which all simulations are scaled to the observed effective optical depth, added some discussion about the local Lyman-alpha forest, accepted for publication in MNRAS
Using open science principles for open science advocacy
Creators: name: Colomb, Julien
name: Gerlach, Roman
Publisher: name: Zenodo
Year: 2019
Subjects: research data management
engagement
open data
open science
GitHub
RDA Deutschland Tagung 2019

description: The eeFDM project that aims at developing components for an effective and efficient research data management (RDM) was funded by the BMBF in 2017. As for most RDM projects, a significant amount of energy is put into outreach and teaching initiatives. We planned the creation of promotional and informative videos in order to raise the awareness researchers on the most important aspects of RDM. To ensure the efficacy of the videos, we have been analysing RDM outreach activities. Using the principles of open science and data management, we started by writing a data management plan and developing a strategy to work in the open.

On the one hand, we have been using existing technologies (R - RStudio, rmarkdown, blogdown- Github, zenodo, netify, dpmtool, dat, googlesheets, email) to collectively gather and list material, strategies and best arguments used for RDM promotion and teaching. On the other hand, we have been presenting the data and its analysis on a website, available both on the web and on dat (https://rdmpromotion.rbind.io, dat:rdmpromotion.hasbase.io). While the technological part was relatively easy and fast to set-up, building an online community is a tough enterprise. We have been reaching out to existing communities or RDM specialists hoping they will contribute to and make use of our tool.

A preliminary analysis of the information gathered so far showed a discrepancy between the topics brought forward by data stewards and managers (data storage, safety, citation, and FAIRness) versus researchers (data preparation for analysis). We have therefore focused our efforts on showing the advantages of good RDM for data analysis and efficient research processes. The artistic framework of our videos is a mashup of clips that entered the public domain. The most recent version of the produced video will be screened during the oral presentation:  Better research in less time *

* slogan modified from Lowndes et al., DOI:10.1038/s41559-017-0160
description: Supported by the BMBF
First-principles study of substitutional carbon pair and Stone-Wales defect complexes in boron nitride nanotubes
Creators: name: Kim, Gunn
name: Park, Jinwoo
name: Hong, Suklyun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using density functional theory, we study physical properties of boron nitride nanotubes (BNNTs) with the substitutional carbon pair defect. We also consider the Stone-Wales (SW) rearrangement of the C-C pair defect in the BNNT. The formation energy of an SW defect of the carbon dimer is approximately 3.1 eV lower than that of the SW-transformed B-N pair in the undoped BNNT. The activation energies show that the SW defect in the C-doped BNNT may be experimentally observed with a higher probability than in the undoped BNNT. Finally, we discuss the localized states originating from the carbon pair impurities.
description: 5 pages, 4 figures, to appear in Chemical Physics Letters
Methylmercury exposure in British Columbian anglers who consume both recreationally caught and commercially bought fish
Creators: name: Kodama, David Michael Yuko
Publisher: name: University of British Columbia
Year: 2011

description: Methylmercury is a common contaminant found in fish. Chronic exposure can have detrimental effects on the nervous, cardiovascular and immune systems. Since mercury exposure can come from consuming fish that is caught as well as fish that is purchased, recreational anglers are a group that may have higher exposure than non-anglers. It was the primary goal of this study to determine whether exposure to methylmercury in Vancouver Island recreational anglers was greater from the consumption of sport-fish or from commercial fish. Study participants were recruited from the BC Ministry of Environment freshwater fishing license list. A comprehensive questionnaire was administered over the telephone to enumerate potential sources of exposure to methylmercury. While the questionnaire primarily focused on the frequency, mass and species of fish consumed, other exposure sources were also examined. Following the questionnaire, a blood sample was collected and analyzed for mercury. A total of 195 anglers between the ages of 21 and 85 participated in the study. 80% of the subjects were male and approximately 90% were born in Canada. The geometric mean blood-mercury concentration was 2.33 ± 2.16 μg/L. In multiple regression analysis, the consumption of caught rockfish, shellfish and cutthroat trout as well as bought fresh/frozen albacore tuna, fresh/frozen ‘other’ tuna, i.e. ahi, skipjack or yellowfin, and snapper were found to be the greatest predictors of exposure. The results of this study demonstrated that exposure to methylmercury in Vancouver Island anglers was equally distributed between recreational and commercial fish species. The observed blood-mercury concentrations were consistent with similar studies, as was the discovery that it was primarily the frequent consumption of fish species containing low to moderate amounts of mercury that drove exposure. While this study determined that three recreational and three commercial fish species were predictors of exposure, five of these six were saltwater species while the sixth, cutthroat trout, was anadromous. Future studies should therefore focus on evaluating the differences in exposure between fresh and saltwater fish consumption. In addition, conducting a comprehensive survey of tissue-mercury levels in Vancouver Island fish would provide valuable region-specific data, leading to better exposure estimates in anglers.
Automatic grasp planning using shape primitives
Creators: name: Miller, Andrew T.
name: Knoop, Steffen
name: Christensen, Henrik Iskov
name: Allen, Peter K.
Publisher: name: Columbia University
Year: 2003
Subjects: Robotics

description: Automatic grasp planning for robotic hands is a difficult problem because of the huge number of possible hand configurations. However, humans simplify the problem by choosing an appropriate prehensile posture appropriate for the object and task to be performed. By modeling an object as a set of shape primitives, such as spheres, cylinders, cones and boxes, we can use a set of rules to generate a set of grasp starting positions and pregrasp shapes that can then be tested on the object model. Each grasp is tested and evaluated within our grasping simulator "GraspIt!", and the best grasps are presented to the user. The simulator can also plan grasps in a complex environment involving obstacles and the reachability constraints of a robot arm.
title: Anterior-posterior metabolic differences in Pediatric Brain: MR Spectroscopy Study
Creators: name: Lazarashvili, Mariam
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Cross-sectional study
subject: Prospective
subject: Metabolic disorders
subject: Diagnostic procedure
subject: MR-Spectroscopy
subject: MR
subject: Paediatric
subject: Neuroradiology brain
subject: CNS
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Magnetic Resonance (MR) spectroscopy is a non-invasive imaging technique that can provide metabolite and biochemical information about the brain. MR spectroscopy is used to compare the chemical composition of normal brain tissue with abnormal...
An SVM learning approach to robotic grasping
Creators: name: Pelossof, Raphael
name: Miller, Andrew T.
name: Allen, Peter K.
name: Jebara, Tony
Publisher: name: Columbia University
Year: 2004
Subjects: Robotics

description: Finding appropriate stable grasps for a hand (either robotic or human) on an arbitrary object has proved to be a challenging and difficult problem. The space of grasping parameters coupled with the degrees-of-freedom and geometry of the object to be grasped creates a high-dimensional, non- smooth manifold. Traditional search methods applied to this manifold are typically not powerful enough to find appropriate stable grasping solutions, let alone optimal grasps. We address this issue in this paper, which attempts to find optimal grasps of objects using a grasping simulator. Our unique approach to the problem involves a combination of numerical methods to recover parts of the grasp quality surface with any robotic hand, and contemporary machine learning methods to interpolate that surface, in order to find the optimal grasp.
INNOVATSION YONDASHUV ASOSIDA 5-8 SINF O'QUVCHILARINING   DUNYOQARASHINI RIVOJLANTIRISH TABIIY GEOGRAFIYA FANLARI MISOLIDA
Creators: name: Suyunov, G'ayrat
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada Geografiya darslarini yanada samarali tashkil qilish, o'quvchilarni fanga qiziqtirish, geografiya darslarida o'qituvchilar tomo-nidan o'quvchilarga geografik jarayonlarni osonroq yetkazib berish haqida fikr yurutiladi. Maqolada muallif tomonida ishlab chiqilgan metodlar ham o'rin olgan.
title: Analysis of resting-state cerebral blood flow characteristics in treatment-naive patients with first-episode obsessive-compulsive disorder based on 3D pseudocontinuous arterial spin labeling imaging
Creators: name: Li, Xiaoming
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Blood
subject: Comparative studies
subject: MR-Functional imaging
subject: Molecular imaging
subject: CNS
subject: Arteries / Aorta
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To evaluate resting-state cerebral blood flow (CBF) in treatment-naive patients with first-episode obsessive-compulsive disorder(OCD) using 3D pseudocontinuous arterial spin labeling imaging (3D pcASL)and to compare the difference of CBF values...
Channeling Vision: Voltage-Gated Calcium Channels of Rods and Cones
Creators: name: Waldner, Derek
Publisher: name: Cumming School of Medicine
Year: 2018
Subjects: subject: Neuroscience

description: Congenital stationary night blindness (CSNB) is a set of inherited diseases characterized by defects in neurotransmission from photoreceptors to second-order neurons in the retina. CSNB2A, specifically, is caused by mutations in Cacna1f – the pore-forming sub-unit of the voltage-gated calcium channel (VGCC), CaV1.4, which is responsible for calcium-mediated glutamate release at photoreceptor ribbon synapses. In this work, we initially expanded the characterization of the Cacna1f-KO mouse retina with a particular focus on cones using our own Cacna1fG305X mouse line. We have comprehensively characterized cone morphology and viability throughout the murine lifespan, and also verified several findings reported in an alternative Cacna1f-KO model which suggest possibility of late-stage rescue. We also identified ectopic, synapse-like cone-rod bipolar cell contacts, which have been described in no other model of retinal disease. We then sought to investigate whether late-stage rescue of retinal morphology and function is feasible in the Cacna1f-KO retina. To this end, we have designed a strategy employing transgenic mice that, with appropriate gene combinations, will allow for inducible expression of Cacna1f. We have characterized several transgenic mice relevant to these experimental aims, and provided some proof-of-concept for future experiments which may provide insight into the plausibility of therapeutic interventions. We also sought to establish an alternative model of CSNB2A in the post-embryonic chick. The relative lack of tools for genetic manipulation of this model led to us developing a novel means – avian adeno-associated viral (A3V) vectors. Using A3V vectors we were able to achieve highly efficient local transduction of photoreceptors following sub-retinal injection, thus providing us with a new tool for investigation of chicken retinal circuitry. Finally, in an attempt to replicate CSNB2A in the chicken retina, we sought to characterize VGCC expression to definitively establish the target for gene knockdown. We were able to definitively prove expression of a Cacna1f orthologue in the chicken retina, and establish its sequence and mRNA expression patterns. Unfortunately, shRNA-encoding A3Vs were unable to achieve significant knockdown, but we have established a powerful framework for future investigations in this model.
title: Radiation Protection in CT-guided Interventions: What effect has Real-time Dose Visualization? A Single-Center Evaluation
Creators: name: Basten, Lajos
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Case-control study
subject: Prospective
subject: Dosimetric comparison
subject: Radiation safety
subject: Percutaneous
subject: Fluoroscopy
subject: CT
subject: Interventional non-vascular
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To evaluate the effect of real-time dose visualization during CT-guided interventions on participating...
Exposure sources and thyroid effects of perfluorinated compounds (PFCs) during pregnancy : results from the chemicals, health and pregnancy study (CHirP)
Creators: name: Webster, Glenys Muriel
Publisher: name: University of British Columbia
Year: 2011

description: Perfluorinated compounds (PFCs) are used as stain, grease and water repellents in a wide range of consumer products. Despite their widespread use and known thyroid disrupting potential in animal studies, uncertainties remain about sources of exposure and thyroid effects in humans. Thyroid effects are of particular concern during early pregnancy, when thyroid hormones play a critical role in fetal brain development. The Chemicals, Health and Pregnancy study (CHirP) was designed to address these knowledge gaps. The main goals of this dissertation were 1) to describe and evaluate a wide range of recruitment techniques used to enroll women in early pregnancy into the study, 2) to identify the main determinants of PFC levels in maternal serum, and 3) to examine the relationships between PFCs and thyroid hormones in maternal serum during a critical window of thyroid-mediated fetal brain development. One hundred and fifty two women from Metro Vancouver were recruited into the study. Posters, flyers, and a booth at pregnancy trade shows were among the most effective recruitment methods. The recruited population was older, less ethnically diverse, more educated and more affluent than the population of pregnant women in Vancouver (Chapter 2). Significant determinants of PFCs in maternal serum included pork-based foods, raw fish and shellfish, microwave and movie theatre popcorn, ethnicity, time spent in cars and airplanes, mattress age, stain repellent use on carpets, spot remover use on carpets, rugs and furniture, and levels of certain PFCs or their precursors in dust. Maternal PFC levels also declined strongly with parity, highlighting concerns about fetal or infant exposures to PFCs across the placenta or via breast milk (Chapter 3). We found significant negative relationships between several PFCs in maternal serum and maternal free thyroxine (fT4), and positive relationships with maternal thyroid stimulating hormone (TSH), but only in women with markers of autoimmune hypothyroidism. These results suggest that PFCs may exacerbate low fT4 and high TSH levels in up to 45,000 pregnancies per year in Canada (i.e. in the 10% of women with these markers), with unknown effects on fetal brain development (Chapter 4). These results await replication in larger, population-based studies.
Critical Understanding on Culture Teaching and Learning in English as a Second/Foreign Language Curriculum
Creators: name: Guo, Fanrui
Publisher: name: Arts
Year: 2018
Subjects: subject: English language
subject: culture instruction
subject: textbooks
subject: comparison
subject: Education--Curriculum and Instruction

description: Most Chinese students who graduate with a college diploma or Bachelor degree have studied English as a foreign language for at least twelve years. However, many of them are still struggling with their performance, especially in the authentic English speaking context. As one of the Chinese students who study abroad, I realize there is a significant gap between the knowledge of English language that I have learned from textbooks and the practice in real life. This gap exists largely because I do not understand authentic English language cultures. The relation between languages and cultures is like that between body and spirit. Languages cannot exist alone without cultures just as body cannot move without spirit. Similarly, English language curriculum is a complex interplay between the language and the cultures. My aim is to investigate the understanding of culture instruction in English language textbooks and curriculum. In this study, I explore my stories of learning and teaching English as a foreign language in China by using autoethnographic approach. Furthermore, I also examine two textbook cases under critical and international comparative perspectives. One is the English textbooks for Grade 10 to Grade 12 in the Chinese public high schools, and the other is for ESL program Level 5 and Level 6 at the University of Calgary.
Assessing the Role of Riparian Vegetation in the Environmental Sustainability of Bangladesh
Creators: name: Rahman, Md Mizanur
Publisher: name: figshare
Year: 2023
Subjects: Biological adaptation
Environment and climate finance
Forest ecosystems

description: The study aimed to assess the role of riparian vegetation in the environmental sustainability of Bangladesh. Both primary and secondary data were used in this study. The respondents opined that the riparian vegetation of Bangladesh can play a major role in ecological stability, and biofiltration, in preventing soil erosion and conserving biodiversity. As a greenbelt, it can be used as a windbreak to protect crops, water sources, soils and settlements during the cyclone, storm surges and flooding. They can provide excellent habitats for many rare and threatened species of fishes, crustaceans, amphibians, reptiles, herbivores, mammals and birds. The riparian zones can enrich degraded biodiversity and provide habitats for isolated communities and endangered species. Based on the respondents’ perceptions an integrated conservation study was developed.
Homeless Women and Their Children in the 21st Century
Creators: name: Redlener, Irwin E.
name: Sherman, Peter
Publisher: name: Columbia University
Year: 2003
Subjects: Homelessness
Homeless families
Homeless children
Homeless women

description: In spite of an unprecedented growth in the economy and subsequent record low unemployment levels throughout most of the 1990s, the number of people who were homeless in the United States steadily increased. A slowdown in the economy that began in 2000 and continued through 2001 magnified the problem. Safety-net programs remain inadequate and a persistent unwillingness to address the lack of affordable housing means that the number of people who are homeless, particularly children, will increase over the next several years. Any longterm downturn in the nation's economy will greatly exacerbate this problem. In order to understand why this is so, it is important to have an understanding of the forces that create and maintain the condition of homelessness in families and how the condition of homelessness affects the well-being of children.
Reconstructing Super-Resolution Microscopy Images to Resolve T-Loop Structures of Telomeres
Creators: name: Au, Braedyn
name: Adam, Nancy
name: Wazen, Rima
name: Colarusso, Pina
Publisher: name: Science
Year: 2018
Subjects: super
resolution
telomere

description: The link between the macroscopic structure of telomeres and cellular health is an unanswered question in cellular research. An obstacle is the fact that conducting microscopic research on telomeres is challenging due to their small size limiting observations to the diffraction limit of light on standard optical microscopes. The novel techniques of super-resolution allow us to successfully image and accurately describe the macroscopic structure of telomeres. This takes steps towards uncovering more about the nature of telomeres and DNA.
title: Generalizability and validation assessments of anterior cruciate ligament localizer and tear detector AI-models
Creators: name: Rizk, Benoit
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Experimental
subject: Retrospective
subject: Education and training
subject: Technology assessment
subject: Segmentation
subject: Localisation
subject: MR
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: Artificial Intelligence
subject: Artificial Intelligence and Machine Learning

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Anterior cruciate ligament (ACL) injury is common in post-traumatic assessment and is of interest for orthopedic surgeons, sports medicine physicians and general practitioners, as it often requires surgery to prevent instability and further...
Infinite-volume mixing for dynamical systems preserving an infinite measure
Creators: name: Lenci, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37A40, 37A25, 60G50

description: In the scope of the statistical description of dynamical systems, one of the defining features of chaos is the tendency of a system to lose memory of its initial conditions (more precisely, of the distribution of its initial conditions). For a dynamical system preserving a probability measure, this property is named `mixing' and is equivalent to the decay of correlations for observables in phase space. For the class of dynamical systems preserving infinite measures, this probabilistic connection is lost and no completely satisfactory definition has yet been found which expresses the idea of losing track of the initial state of a system due to its chaotic dynamics. This is actually on open problem in the field of infinite ergodic theory. Virtually all the definitions that have been attempted so far use "local observables", that is, functions that essentially only "see" finite portions of the phase space. In this note we introduce the concept of "global observable", a function that gauges a certain quantity throughout the phase space. This concept is based on the notion of infinite-volume average, which plays the role of the expected value of a global observable. Endowed with these notions, whose rigorous definition is to be specified on a case-by-case basis, we give a number of definitions of infinite mixing. These fall in two categories: global-global mixing, which expresses the "decorrelation" of two global observables, and global-local mixing, where a global and a local observable are considered instead. These definitions are tested on two types of infinite-measure-preserving dynamical systems, the random walks and the Farey map.
description: 15 pages, 3 figures
title: The predictive role of dynamic study of the swallowing (DSS - VFSS) and neuroimaging: a retrospective observational study of patients with neurogenic dysphagia
Creators: name: Perrucci, Luca
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Swallowing disorders
subject: Dynamic swallowing studies
subject: Contrast agent-oral
subject: MR
subject: Fluoroscopy
subject: CT
subject: Neuroradiology brain
subject: Management
subject: Gastrointestinal tract
subject: Head and Neck

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Dysphagia consists in an altered deglutitive act causing a difficult progression of the alimentary bolus to the patient. It is connected to malnutrition, dehydration and aspiration pneumonia, which increase the mortality and morbidity for the...
Condom Use at Last Sex and Sexual Negotiation Among Young African American Women in North Carolina: Context or Personal Agency
Creators: name: Osakwe, Chukwunomso  E.
name: Opper, Claudia A.
name: van der Drift, Isa
name: Zule, William A.
name: Browne, Felicia A.
name: Wechsberg, Wendee M.
Publisher: name: Springer Nature
Year: 2023

description:
African American women are 10.8 times more likely to be diagnosed with HIV compared with White women. This descriptive study fills a gap by examining associations among social and contextual factors and sexual communication, condom use, and safer sex negotiation among African American women. Study participants between 18 and 25 years of age and who reported recent substance use were recruited from three North Carolina counties. A risk behavior survey was administered via audio computer-assisted self-interview, and logistic regression analyses were conducted to assess associations between social and contextual variables and condom use at last sex with a main partner. Education (AOR: 2.078; 95% CI: 1.214, 3.556), sexual communication with a main partner (AOR: 1.079; 95% CI: 1.050, 1.109), and condom use relationship scale (AOR: 1.059; 95% CI: 1.023, 1.098) were positively associated with condom use at last sex, whereas living with a main partner (AOR: 0.447; 95% CI: 0.210, 0.950) and the alcohol and drug problem scale (AOR: 0.971; 95% CI: 0.944, 0.998) were negatively associated with condom use (p < 0.05). The study findings show that among young African American women at risk for HIV, contextual and personal factors may influence condom use. A socio-ecological approach combining personal empowerment, interpersonal, structural, and biobehavioral strategies is necessary in implementing holistic gender-focused HIV prevention programs.
Assessing the Impact of Climate Change on the Nypa Palm (Nypa Frutican) and Associated Species of the Sundarbans Mangrove of Bangladesh
Creators: name: Rahman, Md Mizanur
Publisher: name: figshare
Year: 2023
Subjects: Forest biodiversity
Forest ecosystems
Forestry management and environment
Climate change impacts and adaptation not elsewhere classified

description: The overarching objective of the study was to assess the impact of climate change on the Nypa Palm (Nypa frutican) and associated species of the Sundarbans mangrove of Bangladesh. Both primary and secondary data were used in this study. It was revealed that faster sedimentation degrades the habitat of the Nypa. The inland Nypa is being disappeared rapidly due to increased salinity. Salinity causes a major threat to the succession of Nypa. The salinity weakens the potentiality of natural regeneration by reducing the viability of seeds, seedling germination and seedling recruitment. The Nypa mortality rate is increased due to increased salinity. The production of new leaves, leaf longevity and the leaf area, net photosynthesis rate, stomata conductance and transpiration rate of leaves are being reduced. The changes in the composition and abundance of this sensitive indicator species provide the specific biological signal of the climate change impacts.
Criticality governed by the stable renormalization fixed point of the Ising model in the hierarchical small-world network
Creators: name: Nogawa, Tomoaki
name: Hasegawa, Takehisa
name: Nemoto, Koji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the Ising model in a hierarchical small-world network by renormalization group analysis, and find a phase transition between an ordered phase and a critical phase, which is driven by the coupling strength of the shortcut edges. Unlike ordinary phase transitions, which are related to unstable renormalization fixed points (FPs), the singularity in the ordered phase of the present model is governed by the FP that coincides with the stable FP of the ordered phase. The weak stability of the FP yields peculiar criticalities including logarithmic behavior. On the other hand, the critical phase is related to a nontrivial FP, which depends on the coupling strength and is continuously connected to the ordered FP at the transition point. We show that this continuity indicates the existence of a finite correlation-length-like quantity inside the critical phase, which diverges upon approaching the transition point.
description: 5 pages, 5 figures
Continuity or Change: Obama and Democracy Assistance
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2009
Subjects: International relations

description: During the transition between administrations and the first few months of the Obama presidency, there has been a lot of talk — in Washington think tanks, universities and the foreign policy blogosphere — about how democracy assistance policy will be different in the new administration. The assumption for many was that the Bush administration had, if not started democracy assistance policies, then taken them to a new level of intensity which would be scaled back by a less ideological and more multilateral Obama presidency.
title: Multiparametric Magnetic Resonance as an accessible tool to evaluate response to neoadjuvant chemotherapy in non-metastatic muscle invasive bladder cancer (MIBC)
Creators: name: Pecoraro, Martina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Outcomes
subject: Neoplasia
subject: Staging
subject: MR-Diffusion/Perfusion
subject: MR
subject: Urinary Tract / Bladder
subject: Oncology
subject: Genitourinary

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Approximately 25% of patients with BC present with disease not-confined to the mucosa (stage equal or higher than T2). The standard treatment for patients with MIBC is radical cystectomy. However, RC only provides 5-year long-term survival is about...
Towards improved clinical translation of MSC therapies: A comprehensive comparative characterisation of iPSC and tissue-derived MSCs
Creators: name: HODGSON-GARMS, MARGEAUX
Publisher: name: Monash University
Year: 2023
Subjects: Biochemistry and cell biology not elsewhere classified

description: Multipotent mesenchymal stromal cells (MSCs) are one of the most widely studied cell types in regenerative medicine. Despite their potential to treat a broad range of diseases, there are still relatively few approved MSC therapies. This is due to variability of tissue-derived MSCs from different sources and donors. To address this, MSCs have been derived from induced pluripotent stem cells (iPSCs) which may be more standardized and easier to produce. This thesis studies the differences between MSCs from different sources and donors, as well as iPSC-derived MSCs (iMSCs) in order to better understand how to use them in clinical trials.
Chemical Diversity of an Isolated Massive Star Formation Environment
Creators: name: Gorai, Prasanta
name: Tan, Jonathan, C
name: Law, Chi-Yan
name: Zhang, Yichen
name: Fedriani, Ruben
name: Bonfand, Mélisse
name: Cosentino, Giuliana
name: Beltrán, Maria, T.
name: Tanaka, Kei.  E. I
name: Mardones, Diego
name: Garay, Gudio
Publisher: name: Zenodo
Year: 2023

description: We investigate the chemical complexity and diversity of the massive protostar G28.20-0.05, which appears to be isolated on the protocluster scale. Our analysis is based on data obtained from the Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm observations, achieving an angular resolution of 0.2′′ (~1000 au). Our observations reveal the presence of a wide array of molecules, including oxygen-bearing (e.g., H2CO, CH3OH, CH3OCH3), sulfur-bearing (SO2, H2S), and nitrogen-bearing (e.g., 13CH3CN, C2H5CN) molecules. Within the central region near the protostar, we have identified three distinct hot cores. In this poster, we focus on presenting the 1.3 mm continuum of this isolated massive protostar, discussing its chemical properties, and analyzing the spatial distributions of various molecules. This source exhibits a rich chemical composition, and the hot cores seem to be externally heated. High-resolution maps provide detailed insights into the distribution of different molecular species, aiding our understanding of their potential chemical origins and correlations. Finally, we tentatively identify evidence of a temperature gradient extending from the central source to the hot core environment.
title: Role of Color Doppler ultrasonography in evaluation of women with Polycystic Ovarian Syndrome (case control study)
Creators: name: Chawla, Kanika
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Case-control study
subject: Prospective
subject: Endocrine disorders
subject: Comparative studies
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Power Doppler
subject: Ultrasound-Colour Doppler
subject: Genital / Reproductive system female
subject: Genitourinary
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: With a worldwide prevalence of 8 -12 % [1], Polycystic Ovarian Syndrome (PCOS) is one of the most common hormonal disorders affecting women of reproductive age group. Transvaginal ultrasonography (TVS) is considered as the gold standard for the...
Fileteller: Paying and Getting Paid for File Storage
Creators: name: Ioannidis, John
name: Ioannidis, Sotiris
name: Keromytis, Angelos D.
name: Prevelakis, Vassilis
Publisher: name: Columbia University
Year: 2002
Subjects: Computer science

description: Fileteller is a credential-based network file storage system with provisions for paying for file storage and getting paid when others access files. Users get access to arbitrary amounts of storage anywhere in the network, and use a micropayments system to pay for both the initial creation of the file and any subsequent accesses. Wide-scale information sharing requires that a number of issues be addressed; these include distributed access, access control, payment, accounting, and delegation (so that information owners may allow others to access their stored content). In this paper we demonstrate how all these issues are addressed using a micropayment architecture based on a trust-management system. Utilizing the same mechanism for both access control and payment results in an elegant and scalable architecture.
title: Automated Ventricular System Segmentation in Paediatric Patients Treated for Hydrocephalus Using Deep Learning Methods
Creators: name: Klimont, Michał
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Retrospective
subject: Cerebrospinal fluid
subject: Shunts
subject: CT
subject: Paediatric
subject: Head and neck
subject: Artificial Intelligence
subject: Artificial Intelligence and Machine Learning
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The purpose of this study was to develop a fully automated system that, given CT examination of the hydrocephalic patient, will calculate CSF volume within the ventricular system. An important modification was to create a system capable of comparing...
3D modeling of historic sites using range and image data
Creators: name: Allen, Peter K.
name: Stamos, Ioannis
name: Troccoli, Alejandro
name: Smith, Benjamin
name: Leordeanu, Marius
name: Hsu, Y. C.
Publisher: name: Columbia University
Year: 2003
Subjects: subject: Computer science
subject: Architecture
subject: FOS: Civil engineering

description: Preserving cultural heritage and historic sites is an important problem. These sites are subject to erosion, vandalism, and as long-lived artifacts, they have gone through many phases of construction, damage and repair. It is important to keep an accurate record of these sites using 3-D model building technology as they currently are, so preservationists can track changes, foresee structural problems, and allow a wider audience to "virtually" see and tour these sites Due to the complexity of these sites, building 3-D models is time consuming and difficult, usually involving much manual effort. This paper discusses new methods that can reduce the time to build a model using automatic methods. Examples of these methods are shown in reconstructing a model of the Cathedral of Ste. Pierre in Beauvais, France.