cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Perioperative Care and the Importance of Continuous Quality Improvement—A Controlled Intervention Study in Three Tanzanian Hospitals
Creators: name: Bosse, Goetz
name: Abels, Wiltrud
name: Mtatifikolo, Ferdinand
name: Ngoli, Baltazar
name: Neuner, Bruno
name: Wernecke, Klaus-Dieter
name: Spies, Claudia
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Introduction Surgical services are increasingly seen to reduce death and disability in Sub-Saharan Africa, where hospital-based mortality remains alarmingly high. This study explores two implementation approaches to improve the quality of perioperative care in a Tanzanian hospital. Effects were compared to a control group of two other hospitals in the region without intervention. Methods All hospitals conducted quality assessments with a Hospital Performance Assessment Tool. Changes in immediate outcome indicators after one and two years were compared to final outcome indicators such as Anaesthetic Complication Rate and Surgical Case Fatality Rate. Results Immediate outcome indicators for Preoperative Care in the intervention hospital improved (52.5% in 2009; 84.2% in 2011, p<0.001). Postoperative Inpatient Care initially improved to then decline again (63.3% in 2009; 70% in 2010; 58.6% in 2011). In the control group, preoperative care declined from 50.8% (2009) to 32.8% (2011, p <0.001), while postoperative care did not significantly change. Anaesthetic Complication Rate in the intervention hospital declined (1.89% before intervention; 0.96% after intervention, p = 0.006). Surgical Case Fatality Rate in the intervention hospital declined from 5.67% before intervention to 2.93% after intervention (p<0.0010). Surgical Case Fatality Rate in the control group was 4% before intervention and 3.8% after intervention (p = 0.411). Anaesthetic Complication Rate in the control group was not available. Discussion Immediate outcome indicators initially improved, while at the same time final outcome declined (Surgical Case Fatality, Anaesthetic Complication Rate). Compared to the control group, final outcome improved more in the intervention hospital, although the effect was not significant over the whole study period. Documentation of final outcome indicators seemed inconsistent. Immediate outcome indicators seem more helpful to steer the Continuous Quality Improvement program. Conclusion Specific interventions as part of Continuous Quality Improvement might lead to sustainable improvement of the quality of care, if embedded in a multi-faceted approach.
Essays on fundraising through crowdfunding and initial coin offering (ICO)
Creators: name: Rahmani Moghaddam, Maryam
Publisher: name: University of Iowa
Year: 2024
Subjects: Crowdfunding
Fundraising
initial coin offering (ICO)
Multimodal models
Topic Modeling
Video Analysis
public abstract

description: Crowdfunding and Initial Coin Offering (ICO) enable entrepreneurs to raise capital from the crowds. Despite the large number of backers, these campaigns fail at a higher rate than they succeed. According to Kickstarter, the success rate of projects launched on the platform as of July 2022 is approximately 40%. Thus, identifying the factors contributing to the success of startups on these two platforms is of paramount importance. As with crowdfunding campaigns, which present their ideas in the form of stories and videos on their web pages on crowdfunding portals (e.g., Kickstarter), ICOs introduce their ideas in the form of whitepapers. By analyzing these sources of information and extracting informative features, we can gain a better understanding of the reasons for the success or failure of these campaigns. Through the use of natural language processing (NLP), econometric and machine learning models, this dissertation aims to analyze the content of crowdfunding campaigns and ICO whitepapers.In the first essay, through applying natural language processing, we illustrate how entrepreneurial narratives could serve as a powerful vehicle to influence the funding outcomes of ICOs. We show that the structure of whitepapers is effective in reducing the information asymmetry between ICO founders and backers leading to increased amounts of funds raised.
description: In the second essay, we examine the impact of existing campaigns on the success of upcoming campaigns. Specifically, we study how future campaigns can learn from prior campaigns and how they are affected by competition through the presence of concurrent campaigns. We propose a Varying Coefficient Model - a natural alternative to linear models where coefficients are expected to change across different groups – to analyze these effects. Precisely, we study how the magnitude of these effects changes over time and their contributions to prediction performance.
description: In the third essay, we propose a multimodal model that incorporates visual features of videos with textual features from project descriptions as well as campaign-level features. Our study examines the contribution of pitch videos to fundraising success. Specifically, we study the significance of visual themes in raising funds, and how they can assist or hinder entrepreneurs in raising funds. We demonstrate how certain themes can benefit some projects while harming others.
Astrocytes contribute to the ReelinApoER2 signalling pathway in the adult brain
Creators: name: Malone, Kirsty
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Biology, Neuroscience.
subject: Biology, Cell.

description: Reelin is 400 kDa, secreted glycoprotein that signals via the lipoprotein receptors ApoER2 and VLDLR, and the cytosolic adaptor protein Dab1 in target cells. This Reelin signalling pathway has been shown to be essential for the formation of the radial glia scaffold and subsequent layering of the cortex during neural development. Reelin's role in the adult brain has not been clearly established, however, recent studies have implicated Reelin as an obligatory component of LTP in neurons of the adult rodent brain. To investigate a possible role for the Reelin/ApoER2/Dab1 signalling pathway in mature, human astrocytes the NT2 cell model system was utilized. Here we show for the first time, using a combination of molecular and cell biology techniques such as RT-PCR, immunoblotting and immunohistochemistry, the presence of Reelin, its receptor (ApoER2) and downstream signalling components in mature NT2 astrocytes (NT2/A). Treatment of pure 15-week-old NT2/A cells with recombinant Reelin induced the tyrosyl phosphorylation of Dab1 on residues Y198 and Y220. Furthermore, our results showed that the membrane ruffling induced by serum deprivation in NT2/A is significantly reduced in the presence of recombinant Reelin in culture. Our findings support a model in which the secreted glycoprotein Reelin is required in NT2/A cells to maintain astrocytic morphology. In light of recent studies, which have identified the importance of astrocytes in the modulation of synaptic transmission, Reelin signalling in NT2/A cells could potentially play a role in altering the dynamics of synaptic transmission in the adult brain via modulation of the cytoskeleton.
3913069.pdf
Creators: name: Zhang, Ruikang
name: Chouket, Raja
name: Tebo, Alison
name: Plamont, Marie-Aude
name: Kelemen, Zsolt
name: Gissot, Lionel
name: Faure, Jean-Denis
name: Gautier, Arnaud
name: Croquette, Vincent
name: Jullien, Ludovic
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: A simple imaging protocol for autofluorescence elimination and optical sectioning in fluorescence endomicroscopy: supplementary material
Effect of Arteriovenous Anastomosis on Blood Pressure Reduction in Patients With Isolated Systolic Hypertension Compared With Combined Hypertension
Creators: name: Ott, Christian
name: Lobo, Melvin D.
name: Sobotka, Paul A.
name: Mahfoud, Felix
name: Stanton, Alice
name: Cockcroft, John
name: Sulke, Neil
name: Dolan, Eamon
name: Van Der Giet, Markus
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2016
Subjects: subject: arteriovenous anastomosis
subject: combined hypertension
subject: isolated systolic hypertension
subject: treatment resistant hypertension
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Background: Options for interventional therapy to lower blood pressure (BP) in patients with treatment‐resistant hypertension include renal denervation and the creation of an arteriovenous anastomosis using the ROX coupler. It has been shown that BP response after renal denervation is greater in patients with combined hypertension (CH) than in patients with isolated systolic hypertension (ISH). We analyzed the effect of ROX coupler implantation in patients with CH as compared with ISH. Methods and Results: The randomized, controlled, prospective ROX Control Hypertension Study included patients with true treatment‐resistant hypertension (office systolic BP ≥140 mm Hg, average daytime ambulatory BP ≥135/85 mm Hg, and treatment with ≥3 antihypertensive drugs including a diuretic). In a post hoc analysis, we stratified patients with CH (n=31) and ISH (n=11). Baseline office systolic BP (177±18 mm Hg versus 169±17 mm Hg, P=0.163) and 24‐hour ambulatory systolic BP (159±16 mm Hg versus 154±11 mm Hg, P=0.463) did not differ between patients with CH and those with ISH. ROX coupler implementation resulted in a significant reduction in office systolic BP (CH: −29±21 mm Hg versus ISH: −22±31 mm Hg, P=0.445) and 24‐hour ambulatory systolic BP (CH: −14±20 mm Hg versus ISH: −13±15 mm Hg, P=0.672), without significant differences between the two groups. The responder rate (office systolic BP reduction ≥10 mm Hg) after 6 months was not different (CH: 81% versus ISH: 82%, P=0.932). Conclusions: Our data suggest that creation of an arteriovenous anastomosis using the ROX coupler system leads to a similar reduction of office and 24‐hour ambulatory systolic BP in patients with combined and isolated systolic hypertension. Clinical Trial Registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01642498.
Image denoising with spline interpolation based on singular value decomposition and other evaluation methods
Creators: name: Qi, Weibin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Engineering, System Science.

description: In this thesis, we construct two new algorithms for image denoising, namely, spline and spline-wavelet, which combine spline interpolation and wavelets together with nonlinear filtering based on block singular value decomposition. Those two approaches are compared with other existing methods, which involve BlockSvd filter, wavelet (global thresholding) filter, median filter, average filter, and adaptive filter. The performance of these approaches differs little from each other. Generally speaking, median filter is very suitable for processing images to reduce "salt and pepper" noise. But for zero-mean Gaussian and speckle noises, an adaptive filter and spline-wavelet methods are more stable and slightly superior to other filters in most conditions and for most images. The proposed algorithms were tested under different types of images and a wide range of signal to noise ratios (SNR). The numerical results demonstrate that these methods can be used in different and useful ways for reducing image noise.
title: Me, myself and my close brands
title: the effect of close brand relationships on forgiveness likelihood
titleType: Subtitle
Creators: name: Luebke, Sarah S F
Publisher: name: University of Iowa
Year: 2024
Subjects: Brand relationships
Brand transgression
Brands
Close relationships
Diagnosticity
Self-brand connection

description: In this research, we study how the diagnosticity of a brand’s transgressions and the closeness of the brand’s consumers work together to affect how consumers reduce blame on the brand. Through moral decoupling, brand forgiveness likelihood and subsequent repurchase from consumers are affected. In other words, we suggest that transgression diagnosticity and consumers’ closeness to a brand affect how consumers are able to morally decouple, or separate the brand’s morality and performance, which subsequently affects consumers’ forgiveness likelihood and repurchase intentions. In five studies, we test our model, using several different dependent variables. We end with a discussion on our findings, limitations, and future research.
Evaluation of mammalian cell-free systems of nuclear assembly and disassembly
Creators: name: Vaillant, Dominique
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Biology, Molecular.

description: Mammalian cell-free systems are very useful for the biochemical and structural study of nuclear disassembly and assembly. Through manipulation, the role of specific proteins in these processes can be investigated. I first intended to examine the involvement of integral and peripheral inner nuclear membrane proteins in nuclear disassembly and assembly. However, I was unable to achieve disassembly when isolated interphase HeLa nuclei were exposed to mitotic soluble extracts containing cyclin B1. Homogenates of synchronized mitotic HeLa cells left to reassemble nuclei resulted in incomplete nuclear envelope assembly on chromatin masses. Digitonin permeabilized mitotic cells also assembled incomplete nuclei, generating a lot of cytoplasmic inclusions of inner nuclear membrane proteins as an intermediate. These results were therefore used as a basis for the experimental evaluation of mammalian cell-free systems. Synchronization itself induced incomplete nuclear assembly. This may be caused by the prior aberrant nuclear disassembly, or by the abnormal number of mitotic spindles.
Service provider quality: The need for research
Creators: name: Havyatt, David
Publisher: name: Swinburne
Year: 2024

description: The telecommunications industry's reputation for poor customer service has been much commented on but little analysed. This study seeks to assist in the three-party engagement between providers, consumers and regulators to improve industry performance. Building on a workshop conducted in 2006 by the Consumer Council of ACIF, a small pilot survey was conducted to assess the adequacy of a description of a quality service provider and the performance of service providers against it. The survey suggests the need and a pathway for further public research, along the lines of research undertaken by providers for themselves.
Experimental investigation of the dynamic behaviour of inclined sagged cables
Creators: name: Hoftyzer, Michael
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Engineering, Civil.

description: The nonlinear characteristics of two-dimensional in-plane free vibration of elastic cables with arbitrary sags over a range of inclinations were analyzed numerically and some typical results were experimentally verified. The analytical investigation was accomplished by using a multi-degree-of-freedom cable model, which was discretized by the use of finite elements. Qualitative and quantitative results obtained for various physical parameters of the elastogeometrical cable parameter are discussed in detail, investigating the modal transition phenomena occurring in planer nonlinear dynamics. Close attention is placed towards investigating the frequency avoidance (or veering) regions of the internal resonances. This resulted in the analysis of the influence of cable inclination, by looking at the overall nonlinear behaviours against those previously outlined for the horizontal cable. The thesis concludes with a summary of results and some conclusions derived from it. Limited experimental analysis was preformed for specific cases by considering, for example, the angle of inclination and cable properties. The experimental results are used to verify the results from FEM analysis. Particular attention is paid on the phenomena of frequency crossover of flat sagged cables and to resolve issues on the avoidance points of inclined sagged cables. (Abstract shortened by UMI.)
3916309.pdf
Creators: name: Ota, Yasutomo
name: Liu, Feng
name: Katsumi, Ryota
name: Watanabe, Katsuyuki
name: wakabayashi, katsunori
name: Arakawa, Yasuhiko
name: Iwamoto, Satoshi
Publisher: name: Optica Publishing Group
Year: 2019
Subjects: Uncategorized

description: Supplement 1
On Learnable Parameters of Optimal and Suboptimal Deep Learning Models
Creators: name: Zheng, Ziwei
name: Liang, Huizhi
name: Snasel, Vaclav
name: Latora, Vito
name: Pardalos, Panos
name: Nicosia, Giuseppe
name: Ojha, Varun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We scrutinize the structural and operational aspects of deep learning models, particularly focusing on the nuances of learnable parameters (weight) statistics, distribution, node interaction, and visualization. By establishing correlations between variance in weight patterns and overall network performance, we investigate the varying (optimal and suboptimal) performances of various deep-learning models. Our empirical analysis extends across widely recognized datasets such as MNIST, Fashion-MNIST, and CIFAR-10, and various deep learning models such as deep neural networks (DNNs), convolutional neural networks (CNNs), and vision transformer (ViT), enabling us to pinpoint characteristics of learnable parameters that correlate with successful networks. Through extensive experiments on the diverse architectures of deep learning models, we shed light on the critical factors that influence the functionality and efficiency of DNNs. Our findings reveal that successful networks, irrespective of datasets or models, are invariably similar to other successful networks in their converged weights statistics and distribution, while poor-performing networks vary in their weights. In addition, our research shows that the learnable parameters of widely varied deep learning models such as DNN, CNN, and ViT exhibit similar learning characteristics.
Body mass index distribution in rheumatoid arthritis: a collaborative analysis from three large German rheumatoid arthritis databases
Creators: name: Albrecht, Katinka
name: Richter, Adrian
name: Callhoff, Johanna
name: Huscher, Doerte
name: Schett, Georg
name: Strangfeld, Anja
name: Zink, Angela
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2016
Subjects: subject: Body mass index
subject: Epidemiology
subject: Rheumatoid arthritis
subject: Obesity
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Background METARTHROS (Metabolic impact on joint and bone disease) is a nationwide German network to investigate the overlap between inflammatory and metabolic diseases. The objective of this study was to compare the body mass index (BMI) distribution in patients with early and established rheumatoid arthritis (RA) with data from the general population, and to evaluate the association of BMI with patient characteristics and clinical markers. Methods The BMI distribution was examined with data collected at inclusion of patients in the early arthritis cohort CAPEA, the biologics register RABBIT, and the National database of the German Collaborative Arthritis Centers. A data source with a representative sample of the German population (German Ageing Survey) was used as a comparator. BMI categories of <18.5 kg/m2 (underweight), 18.5 to <25 kg/m2 (normal weight), 25 to <30 kg/m2 (overweight), and ≥30 kg/m2 (obese) were used. Patients were stratified by age and sex, and compared to controls from the German Ageing Survey. Associations between BMI and markers of disease activity were analysed with non-parametric tests and linear models. Results Data from 1207 (CAPEA), 12,230 (RABBIT), and 3424 (National database) RA patients and 6202 population controls were evaluated. The mean age was 56, 56, 62, and 62 years, respectively, the mean disease duration was 13 weeks, 9.9 years, and 13.5 years, respectively, and the mean disease activity score (DAS28) was 5.1, 5.2, and 3.1, respectively. In all RA cohorts, obesity was more frequent (23.8 %, 23.4 %, 21.4 %, respectively) than in controls (18.2 %). This applied to all age groups <70 years, was independent of disease duration, and was more pronounced in females. In all cohorts, the age at RA onset was associated with BMI, being higher in overweight/obese patients compared to normal-weight patients. Current smoking was negatively associated with BMI. Linear analyses revealed increased erythrocyte sedimentation rate (ESR) values in underweight and obese females, and an increasing disparity between tender joint counts (TJCs) and swollen joint counts (SJCs) in higher BMI categories. Conclusions Compared to the general population, a higher prevalence of obesity was observed in all RA cohorts. The dominance of obesity in females and the different behaviour of disease activity markers in relation to the BMI in females indicate that additional parameters need to be considered when analysing the impact of obesity on inflammation in RA.
Prediction of nontraditional vs. traditional studies among university students through social, cognitive, attributional and demographic factors.
Creators: name: Baranowsky, Anna B.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Psychology, Social.

description: Male and female students continue to be under or over-represented in specific study domains suggesting a selection criterion not always reflective of interest, ability, and good fit (Statistics Canada, 1992). In order to understand the social, cognitive and personal attributes which underlie the choices that maintain this imbalance, undergraduate university students were given problem solving, attitudinal and attribution measures. The aim of this study was to predict male or female dominated educational choices with the future intent of enhancing occupational suitability. The Impostor Phenomenon questionnaire, Social Problem Solving Inventory-R, Sex-Role Egalitarianism Scale, and the CAVE attribution procedure were selected for their potential utility as predictors. Study participants included male (n = 185) and female (n = 177) undergraduate students (N = 362) majoring in traditional and non-traditional studies (i.e., computer science, engineering, psychology, education, nursing) from the University of Ottawa and Carleton University. Hypotheses testing utilized Logistic Regression Analyses (LRA) and results revealed primary measures to possess only weak predictive ability for non-traditional (NTS) vs. traditional study (TS) choice. Overall, students were not overly influenced by selected social and cognitive factors in their study choice. Exploratory LRA for the male sample identified parental SES, certain types of problem solving skills, and a desire for an alternate career as factors that resulted in the best fit (81% correct classification) and statistical significance (p < .001). Exploratory LRA for the female sample was non-significant. Recommendations for improving predictive ability in future studies include utilizing behaviorally driven intentional measures linked closely to past and future educational and occupational decisions (i.e., Theory of Reasoned Action (TRA) Ajzen & Fishbein, 1980). Future investigations should follow the noteworthy perceptual differences in the male and female sample groups supported through empirical and theoretical distinctions reported in this study. This line of inquiry continues to pose a worthwhile challenge directed toward the identification of factors that potentially block ability and interest from directing educational pursuits and the harmonization of persistent imbalances in career choices.
title: Tumores testiculares
Creators: name: Gálvez González, Esther
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Genital / Reproductive system male
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Education
subject: Neoplasia

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Los tumores testiculares representan sólo el 1% de todas las neoplasias en varones,
pero es la lesión maligna más frecuente entre los 15 y 34 años. Nuestros objetivos son establecer las características de los tumores testiculares en base a su...
title: Current-reported outcome domains in studies of adults with a focus on the treatment of tinnitus
title: protocol for a systematic review
titleType: Subtitle
Creators: name: Hall, Deborah A.
name: Szczepek, Agnieszka J.
name: Kennedy, Veronica
name: Haider, Haúla
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Introduction In Europe alone, over 70 million people experience tinnitus. Despite its considerable socioeconomic relevance, progress in developing successful treatments has been limited. Clinical effectiveness is judged according to change in primary outcome measures, but because tinnitus is a subjective condition, the definition of outcomes is challenging and it remains unclear which distinct aspects of tinnitus (ie, ‘domains’) are most relevant for assessment. The development of a minimum outcome reporting standard would go a long way towards addressing these problems. In 2006, a consensus meeting recommended using 1 of 4 questionnaires for tinnitus severity as an outcome in clinical trials, in part because of availability in different language translations. Our initiative takes an approach motivated by clinimetrics, first by determining what to measure before seeking to determine how to measure it. Agreeing on the domains that contribute to tinnitus severity (ie, ‘what’) is the first step towards achieving a minimum outcome reporting standard for tinnitus that has been reached via a methodologically rigorous and transparent process. Methods and analysis Deciding what should be the core set of outcomes requires a great deal of discussion and so lends itself well to international effort. This protocol lays out the first-step methodology in defining a Core Domain Set for clinical trials of tinnitus by establishing existing knowledge and practice with respect to which outcome domains have been measured and which instruments used in recent registered and published clinical trials. Ethics and dissemination No ethical issues are foreseen. Findings will be reported at national and international ear, nose and throat (ENT) and audiology conferences and in a peer-reviewed journal, using PRISMA (Preferred Reporting Items for Systematic reviews and Meta-analysis) guidelines. Trial registration number The systematic review protocol is registered on PROSPERO (International Prospective Register of Systematic Reviews): CRD42015017525.
title: Marcadores Fiduciales en cáncer de próstata. Nuestra experiencia con 130 casos.
Creators: name: Codina, Jaume
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Neoplasia
subject: Radiation therapy / Oncology
subject: Puncture
subject: Localisation
subject: Ultrasound
subject: Digital radiography
subject: Pelvis
subject: Interventional non-vascular
subject: Genital / Reproductive system male

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
-Describir la técnica de implantación de marcadores fiduciales en la próstata haciendo especial énfasis en el estudio de las complicaciones detectadas en nuestra serie para demostrar su utilidad. -Señalar los beneficios para la localización...
Quantification and isotherm modelling of competitive phosphate and silicate adsorption onto micro-sized granular ferric hydroxide
Creators: name: Hilbrandt, Inga
name: Lehmann, Vito
name: Ruhl, Aki Sebastian
name: Zietzschmann, Frederik
Publisher: name: My University
Year: 2019

description: Adsorption onto ferric hydroxide is a known method to reach very low residual phosphate concentrations. Silicate is omnipresent in surface and industrial waters and reduces the adsorption capacity of ferric hydroxides. The present article focusses on the influences of silicate concentration and contact time on the adsorption of phosphate to a micro-sized iron hydroxide adsorbent (nGFH) and fits adsorption data to multi-component adsorption isotherms. In Berlin drinking water (DOC of approx. 4 mg L-1) at pH 7.0, loadings of 24 mg g-1 P (with 3 mg L-1 initial PO43--P) and 17 mg L-1 Si (with 9 mg L-1 initial Si) were reached. In deionized water, phosphate shows a high percentage of reversible bonds to nGFH while silicate adsorption is not reversible probably due to polymerization. Depending on the initial silicate concentration, phosphate loadings are reduced by 27, 33 and 47% (for equilibrium concentrations of 1.5 mg L-1) for 9, 14 and 22 mg L-1 Si respectively. Out of eight tested multi-component adsorption models, the Extended Freundlich Model Isotherm (EFMI) describes the simultaneous adsorption of phosphate and silicate best. Thus, providing the means to predict and control phosphate removal. Longer contact times of the adsorbent with silicate prior to addition of phosphate reduce phosphate adsorption significantly. Compared to 7 days of contact with silicate (c0 = 10 mg L-1) prior to phosphate (c0 = 3 mg L-1) addition, 28 and 56 days reduce the nGFH capacity for phosphate by 21 and 43%, respectively. Quelle: https://pubs.rsc.org
Looking to the future
Creators: name: Hirschnitz-Garbers, Martin
Publisher: name: My University
Year: 2014
Subjects: subject: Ressourcenpolitik
subject: Systemanalyse
subject: Futurologie
subject: resources policy
subject: sustaibable resources
subject: system analysis
subject: future research
subject: Abfall | Ressourcen
subject: Waste | Resources

description: The world is in a process of constant change and development. Not only is technology advancing, but the environment as well as  political, social and economic systems are constantly changing. To respond, it is important to look into the future so as to recognize and take advantage of opportunities as well as detect and minimize risks to mitigate negative consequences. A forward looking and precautionary resource and environmental policy has to take into account not only megatrends but also emergent developments. We must detect and observe emerging trends critically in order to be able to design appropriate responses. This report was prepared as part of the project "Models, potentials and long term scenarios for resource efficiency (SimRess)". It presents developments and trends that may have an impact on the design of sustainable resource efficiency policy. These trends should raise awareness for future developments. They show potential opportunities but also the risks for the development of policy. This report is intended to illustrate what's coming our way and enrich the further development of the German and European Resource policy with new perspectives.
Internet politics in Cuba
Creators: name: Uxo, Carlos
Publisher: name: Swinburne
Year: 2024

description: The Internet socialization of ICTs, paying particular attention to the social and political climate that has led to its development in Cuba. Numerous experts based in developed countries insist on presenting Internet as the panacea for all the world's problems, still overlook the very disparate Internet penetration rates in the world in 2009, 74% in the US; 29.9% in Latin America and the Caribbean; and a mere 5.6% in Africa. It is a mistake to reiterate the typically first-world glorification of the Internet as a tool that facilitates inherently democratic participation. The lack of awareness of or attention to this notion's theoretical framework is a recurring problem in both academic and journalistic texts, which tend to be written from an overly simplistic and individualist perspectives.
Nonlinear analysis of interspike intervals.
Creators: name: Racicot, Daniel M.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1997
Subjects: subject: Biology, Neuroscience.

description: Theories of neural coding and neural information processing rely on a knowledge of the correlations between firing events. We present a method of analyzing experimental interspike interval (ISI) sequences from neurons for the presence of nonlinear correlations. This is accomplished by comparing nonlinear predictions on experimental data sets and on their "surrogate" data sets. These surrogates have the same linear properties as the experimental data, but are otherwise stochastic. A difference in nonlinear predictability between both sets implies that nonlinear correlations are present in the experimental data. We also examine the relationship between, on one hand, neural firing times, and on the other, the dynamical variables of the neuron and its inputs. We focus on a recently proposed method to reconstruct the dynamics of the input to a neuron via a delay embedding of the interspike intervals. We show that this method works well for the simple integrate-and-fire type neuron models when the mean sampling rate is high. However, the method does not extend to more realistic models. Our analysis suggests that this method may be applicable to a small subset of real neurons and that, in general, we should not expect to easily extract information about input stimuli to neurons using ISI embeddings.
Cellular heterogeneity contributes to subtype-specific expression of ZEB1 in human glioblastoma
Creators: name: Euskirchen, Philipp
name: Radke, Josefine
name: Schmidt, Marc Soeren
name: Heuling, Eva Schulze
name: Kadikowski, Eric
name: Maricos, Meron
name: Knab, Felix
name: Grittner, Ulrike
name: Zerbe, Norman
name: Czabanka, Marcus
name: Dieterich, Christoph
name: Miletic, Hrvoje
name: Mork, Sverre
name: Koch, Arend
name: Endres, Matthias
name: Harms, Christoph
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2017
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: The transcription factor ZEB1 has gained attention in tumor biology of epithelial cancers because of its function in epithelial-mesenchymal transition, DNA repair, stem cell biology and tumor-induced immunosuppression, but its role in gliomas with respect to invasion and prognostic value is controversial. We characterized ZEB1 expression at single cell level in 266 primary brain tumors and present a comprehensive dataset of high grade gliomas with Ki67, p53, IDH1, and EGFR immunohistochemistry, as well as EGFR FISH. ZEB1 protein expression in glioma stem cell lines was compared to their parental tumors with respect to gene expression subtypes based on RNA-seq transcriptomic profiles. ZEB1 is widely expressed in glial tumors, but in a highly variable fraction of cells. In glioblastoma, ZEB1 labeling index is higher in tumors with EGFR amplification or IDH1 mutation. Co-labeling studies showed that tumor cells and reactive astroglia, but not immune cells contribute to the ZEB1 positive population. In contrast, glioma cell lines constitutively express ZEB1 irrespective of gene expression subtype. In conclusion, our data indicate that immune infiltration likely contributes to differential labelling of ZEB1 and confounds interpretation of bulk ZEB1 expression data.
Neurodiversity : affirming practice through the lens of lived autistic experience
Creators: name: Dmyterko, Juliane
Publisher: name: University of British Columbia
Year: 2025

description: The neurodiversity paradigm is emerging in disability communities and the scientific literature. Although the paradigm continues to develop, there are no clear definitions or established guidelines of what makes clinical practice neurodiversity-affirming. A better understanding of neurodiversity-affirming practice from the perspective of the consumers of these services, for the purpose of this study, namely autistic adults, is essential for improving the mental health and well-being of neurodivergent individuals. The aim of the current study was to work with autistic adults who identify as neurodivergent and autistic to define neurodiversity-affirming practice grounded in their experiences and perspectives. A grounded theory methodology was used, guided by a social constructivist epistemology and critical disability theory. Methods used to collect data included a background information survey, semi-structured interviews (live or written, depending on participant preference), e-journals, and individual debriefs. Thirty autistic adults participated in the study. The data was analyzed through coding (i.e., open, axial, and selective coding) and memoing. The rigour of this research project was ensured through multiple raters, member-checking, and triangulation. A grounded theory was created from the analysis through coding, sorting, and ongoing conversations between the two raters. The theory shows that to be neurodiversity-affirming, the neurodiversity paradigm and social model of disability must influence the practitioner’s clinical lens. Consistent aspects of practice were defined as being neurodiversity-affirming, including the service provider's approach/way of being, the environment in which the service takes place, and actions that the service provider takes in their professional development and work with clients. These factors contributed to the neurodivergent person’s experience and influenced society to become more neurodiversity-affirming. The findings can inform service providers’ practices to be more neurodiversity-affirming for neurodivergent individuals. This is important for improving the mental health and well-being of neurodivergent individuals and their families. It will also build on the research for and facilitate the continued emergence of neurodiversity-affirming practice.
Advances in Palladium-Catalyzed Carbon-Carbon Bond Formation Via Functionalization of Carbon-Hydrogen Bonds
Creators: name: Rene, Olivier
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Chemistry, Organic.

description: In the past decade, significant advances have been made in the formation of Csp2-Csp 2 bonds by direct arylation. However, this process generally requires the use of forcing conditions at temperatures typically above 100 °C, which limits the substrate compatibility as well as large-scale applications. Inspired by the recent advances in the development of milder reaction conditions for the arylation of electon-rich arenes in an aqueous medium, we describe that such reactivity is also possible with electron-deficient polyfluorinated arenes at room temperature under biphasic conditions. Several examples are included, highlighting the application of this method to the preparation of a variety of biaryls using iodides bearing electron-poor, electron-rich and sterically encumbering substituents. Several polyfluoroarenes with different substitution patterns are also tolerated. In addition, the method can be extended to the arylation of halogenated thiophenes in a regioselective fashion. However, direct arylation conditions that are general for a broad variety of heterocyclic coupling partners are only sparsely reported and the use of a different set of conditions for each type of substrate remains the norm. As part of a program dedicated to the study of the direct arylation mechanism and the development of broadly applicable reaction conditions, we became interested in investigating the effect of electron-deficient biaryl-type phosphine ligands on the C-H bond cleavage step of this process under Pd(0) catalysis. Inspired by previous reports validating the efficiency of these types of ligands in intramomecular direct arylation, we have developed a new electron-deficient fluoroarylphosphine ligand that promotes C-H bond functionalization of a broad variety of heterocycles. The demonstrated ability of these types of ligands to facilitate the C-H bond cleavage step of this process has been assessed and experimental evidence suggests a concerted metalation-deprotonation mechanism in the presence of an electrophilic metal center. Only recently, nonetheless, has attention been paid to the formation of Csp3-Csp2 bonds by the direct arylation strategy. As an alternative to the use of aliphatic halides as an entry point to a1kylpalladium(II) intermediates, we describe the use of a Heck-like cyclization of an aryl halide as a means of intercepting the key palladium(II) species, along with the first examples of domino Heck-arylation involving intermolecular capture with heterocyclic arenes via C-H bond cleavage. Several examples are presented, demonstrating the application of this method to the preparation of diverse dihydrobenzofurans, indolines and oxindoles substituted with sulfur-containing heterocycles such as thiazoles, thiophenes and benzothiophene.
3896001.pdf
Creators: name: Chen, YU-Chen
name: Griffiths, Benjamin
name: Weng, Laiyi
name: Nicley, Shannon
name: Ishmael, Shazeaa
name: Lekhai, Yashna
name: Johnson, Sam
name: Stephen, Colin
name: Green, Ben
name: Morley, Gavin
Publisher: name: Optica Publishing Group
Year: 2019
Subjects: Uncategorized

description: Supplementary Information
Writing in online undergraduate physics at the community college
Creators: name: Johnson, Kenneth T.
Publisher: name: University of Iowa
Year: 2023
Subjects: Community College
Undergraduate
Writing
Writing to Learn
public abstract
Physics
Science Education

description: This paper is a proposal, project, and dissertation for Kenneth Johnson, Doctor of Philosophy degree in Science Education, in the Graduate College of The University of Iowa. I propose analyzing the writing assignment in an undergraduate online physics course offered by a small midwestern community college (CC). The goal is to study how Writing to Learn (WTL) exercises affect undergraduate physics students. How does their understanding of physics concepts improve? How does the writing toward a target audience improve over a semester? What are the student attitudes and impressions of online undergraduate physics science class writing exercises? The project will answer the first two questions in chapter two by studying the effects of WTL writing tasks on online undergraduate physics students at a two-year college (TYC). The investigator will address aspects of the third question in chapter three. In Chapter 4, the investigator will submit a detailed discussion of results, conclusion, limitations, potential actions in the learning environment, and future research potential. The investigation will take data from assignments, discussions, and surveys from an undergraduate online physics course in the spring of 2022. The writings in this study occurred before the public release in November of 2022 of ChatGPT, the artificial intelligence “chatbot” developed by OpenAI, a large language model.
description: Keywords: Writing, Readability, Attitude, WTL, Physics, Undergraduate, Community College, Two-Year College, TYC, Writing to Learn, Online, Reading-level, Science
title: Adenocarcinoma de páncreas con isoatenuación; signos secundarios en TAC multidetector.
Creators: name: Pérez Cutillas, Julia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Neoplasia
subject: Dilatation
subject: Contrast agent-oral
subject: Contrast agent-intravenous
subject: Venous access
subject: CT-Quantitative
subject: Pancreas
subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Determinar la frecuencia,
síntomas clínicos así como los hallazgos secundarios en TAC multidector que pueden ayudar a la detección de adenocarcinoma de páncreas que presentan isoatenuación con respecto al resto del parénquima...
Asymptotically tight performance bounds for selection diversity over Beaulieu-Xie fading channels with arbitrary correlation
Creators: name: Olutayo, Adebola
name: Cheng, Julian
name: Holzman, Jonathan F.
Publisher: name: IEEE
Year: 2018

description: A new (Beaulieu-Xie) fading model was recently proposed to describe line-of-sight and non-line-of-sight components in wireless channels. In this work, we consider both outage probability and error rate performance of selective combining over this new fading channel model with arbitrary channel correlation. Closed-form expressions are obtained for asymptotically tight upper and lower bounds. The analytical results are verified by Monte Carlo simulations.
The contributions of life history and inter-individual variation to the study of energetic supply and demand in Bombus impatiens
Creators: name: Skandalis, Dimitri A
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011
Subjects: subject: Biology, Ecology.

description: In insects, flight energetics varies greatly among species but the source of this variation remains unknown. This thesis addresses phenotypic plasticity and matching of cellular and whole-animal metabolism in a bumblebee (Bombus impatiens). Bumblebees begin flying prior to full metabolic maturation, suggesting a window of greater metabolic plasticity. Bees were induced to fly before fully maturing, but although flight training resulted in elevated metabolic rates compared to controls, there was no change in biochemical activities of any tested enzymes. Similarly, while statistical models of flight parameters explained the majority of inter-individual variation in measures such as metabolic rate and wing beat frequency, there was no direct link between whole-animal metabolism and cellular energy production pathways. This suggests that muscle energy production and whole-animal metabolic demands are not plastically synchronised, and that inter-specific variation is likely not solely the result of phenotypic plasticity.
title: BeBOT
title: Bernstein polynomial-based method for solving complex optimal motion planning problems
titleType: Subtitle
Creators: name: Jensen, Calvin
Publisher: name: University of Iowa
Year: 2023
Subjects: Autonomous Surface Vessel
Bernstein Polynomial
Motion Planning
Optimal Control
Real-Time
Stochastic Optimization

description: This thesis presents a method for the generation of trajectories for autonomous system operations. The proposed method is based on the use of Bernstein polynomial approximations to transcribe infinite dimensional optimization problems into nonlinear programming problems. In particular, it is shown that by approximating the vehicles' states and inputs using Bernstein polynomials, typical trajectory generation problems for autonomous vehicles can be formulated as nonlinear programming problems. These, in turn, can be solved using off-the-shelf optimization solvers. The main motivation for this approach is that Bernstein polynomials possess favorable geometric properties and yield computationally efficient algorithms that enable a trajectory planner to efficiently evaluate and enforce constraints along the vehicles' trajectories, including maximum speed and angular rates as well as minimum distance between trajectories and between the vehicles and obstacles. By virtue of these properties and algorithms, feasibility and safety constraints typically imposed on autonomous vehicle operations can be enforced and guaranteed independently of the order of the polynomials. To support the use of the proposed method we introduce BeBOT (Bernstein/Bézier Optimal Trajectories), an open-source toolbox that implements the operations and algorithms for Bernstein polynomials. It is shown that BeBOT can be used to efficiently generate feasible and collision-free trajectories for single and multiple vehicles, and can be deployed for real-time safety critical applications in complex environments.