cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Military Legacies in Nigeria Education Policies, Processes, and Quality:The Politics of Patronage in Nigeria: 1973–2003
Creators: name: Admin, RISE
name: Incorporated, Communications Development
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: Nigeria’s first 40 years of independence—from 1960 to 1999, when it finally returned to democracy—were dominated by military rule. It had seven military rulers, six changes in government inspired by the military (including five successful military coups), three unsuccessful coups, and one civil war. It also had four constitutional drafting experiments and four constitutions (one was never used), four transitions to civil rule, and two civilian regimes.1 High government turnover produced multiple and frequent changes in education policies and economic development programs. From 1991 to 1999 alone, there were eight federal ministers of education across five regimes, with a further 11 ministers after the transition to democracy in 1999 until 2015.2 Under the preceding colonial governance, gender and regional disparities set in and became entrenched into the country’s education system. Regional administrative structures established by the colonial constitutions promoted education as regional affairs, which further exacerbated differences in access and uptake. For example, the Southwest region established a Universal Primary Education (UPE) scheme in 1955, which the Southeastern region also adopted in 1957. In the north, while there was a free education program, it was not formally launched as UPE.3 Conscious efforts to address the differential educational access between northern and southern Nigeria as well as the government's direct involvement in the establishment and management of schools did not happen at the federal level until the 1970s, about two decades after independence.4 In early 1970s, the Federal Government began to take over schools from private owners and made it a nationwide policy in 1975.5 This marked the full involvement of the government in the ownership and management of education in the country. This summary presents findings of the Political Economy Analysis of Education in Nigeria, which focused on political intermissions during the first 40 years of the country’s independence, which was dominated by the military. The study sought to understand how political breaks and interruptions such as the repeated coups and other government transitions contributed to altering existing administrative norms in the education sector, and the relation of these interruptions and their effects to the access and quality of education.
A Survey of the Organization and Management of State Shellfish Programs
Creators: name: Lewis, Glenda R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: The operational and intergovernmental practices of state shellfish programs were examined to view the current status of these state programs. A questionnaire was used to perform the study. States are currently in compliance with directives and requirements of the Interstate Shellfish Sanitation Conference. Obstacles discovered to efficient and effective state implementation of these duties include insufficient resources, state doubt in the validity of established bacteriological standards, and a general lack of legislative and public awareness. An effective approach to aid in the coordination of state efforts under the Conference is the full exchange of information among neighboring states. A strong need exists for a realistic and continuing evaluation of the state role in shellfish management.
Phase context decomposition of diagonal unitaries for higher-dimensional systems
Creators: name: Beer, Kerstin
name: Dziemba, Friederike Anna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We generalize an efficient decomposition method for diagonal operators by Welch et al. to qudit systems. The phase-context aware method focusses on cascaded entanglers whose decomposition into multi-controlled INC-gates can be optimized by the choice of a proper signed base-$d$ representation for the natural numbers. While the gate count of the best known decomposition method for general diagonal operators on qubit systems scales with $\mathcal{O}(2^n)$, the circuits synthesized by the Welch algorithm for diagonal operators with $k$ distinct phases are upper-bounded by $\mathcal{O}(n^2k)$, which is generalized to $\mathcal{O}(dn^2k)$ for the qudit case in this paper.
description: 6 pages
title: Study of Delay Time in Multi Slice CTFluoroscopy
Creators: name: Tsujioka, Katsumi
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: Biopsy
subject: Image manipulation / Reconstruction
subject: CT
subject: Lung
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: We developed a method to add the color information on the tip of needle in the multi slice CT fluoroscopy. With this method, we can instantly understand the 3D position of needle tip by looking at a single CT image. The most important factor in CT...
title: Gd-EOB-DTPA magnetic resonance imaging in hepatocellular carcinoma patients after transcatheter arterial chemoembolization.
Creators: name: Jin, Qianna
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: Venous access
subject: Arterial access
subject: MR
subject: Catheter arteriography
subject: Interventional vascular
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Gadoxeticacid- disodium (Gd-EOB-DTPA) is a new hepatocytes-directed gadolinium-based paramagnetic contrast agent, which has been available in Europe since 2004, and in China since 2011. This contrast media named as “dual agents” because it...
Axion-photon Propagation in Magnetized Universe
Creators: name: Wang, Chen
name: Lai, Dong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Oscillations between photons and axion-like particles (ALP) travelling in intergalactic magnetic fields have been invoked to explain a number of astrophysical phenomena, or used to constrain ALP properties using observations. One example is the anomalous transparency of the universe to TeV gamma-rays. The intergalactic magnetic field is usually modeled as patches of coherent domains, each with a uniform magnetic field, but the field orientation changes randomly from one domain to the next ("discrete-$φ$ model"). We show in this paper that in more realistic situations, when the magnetic field direction varies continuously along the propagation path, the photon-to-ALP conversion probability $P$ can be significantly different from the discrete-$φ$ model. In particular, $P$ has a distinct dependence on the photon energy and ALP mass, and can be as large as 100 percent. This result may affect previous constraints on ALP properties based on ALP-photon propagation in intergalactic magnetic fields.
description: 15 pages, 5 figures, accepted for publication in JCAP
The effects of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms
Creators: name: Augustyniak, Adrian
name: Sikora, Pawel
name: Jablonska, Joanna
name: Cendrowski, Krzysztof
name: John, Elisabeth
name: Stephan, Dietmar
name: Mijowska, Ewa
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: calcium–silicate–hydrate
subject: C–S–H seeds
subject: microorganisms
subject: nanoparticles
subject: stimulation
subject: toxicity

description: Building materials are constantly improved with various additives and admixtures in order to achieve goals ranging from obtaining increased durability or antimicrobial activity up to reducing the carbon footprint left by the cement production. Since nanomaterials were proposed for cement products, many studies explored the possibilities for their incorporation. One of the novel trends in studying these materials is evaluating their impact on living organisms, with the focus not only on toxicology but also on the application potential. Therefore, in this study, we investigated the effects of three types of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms in the scope of their basic physiology and primary metabolism. Shape, size and elemental composition of C–S–H seeds were also evaluated. The tests on the reference microorganisms have shown that the reaction to these nanomaterials can be specific and depends on the strain as well as the type of used nanomaterial. Furthermore, the presence of C–S–H seeds in the growth environment led to metabolic stimulation that resulted in faster growth, higher biochemical activity, and increased biofilm formation. Based on our findings, we conclude that even though C–S–H seeds have antimicrobial potential, they can be potentially used to promote the growth of selected microbial strains. This phenomenon could be further investigated towards the formation of beneficial biofilms on building materials.
Matrix- and Technology-Dependent Stability and Bioaccessibility of Strawberry Anthocyanins during Storage
Creators: name: Stübler, Anna-Sophie
name: Böhmker, Lena
name: Juadjur, Andreas
name: Heinz, Volker
name: Rauh, Cornelia
name: Shpigelman, Avi
name: Aganovic, Kemal
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 600 Technik, Technologie
subject: anthocyanins
subject: pulsed electric fields
subject: high-pressure processing
subject: storage
subject: bioaccessibility

description: Anthocyanins are often associated with health benefits. They readily degrade during processing and storage but are also dependent on the matrix conditions. This study investigated how strawberry anthocyanins are affected by preservation technologies and a relatively protein-rich kale juice addition during storage. A strawberry–kale mix was compared to a strawberry–water mix (1:2 wt; pH 4), untreated, thermally, pulsed electric fields (PEF) and high-pressure processing (HPP) treated, and evaluated for anthocyanin stability and bioaccessibility during refrigerated storage. The degradation of strawberry anthocyanins during storage followed first-order kinetics and was dependent on the juice system, preservation technology and anthocyanin structure. Generally, the degradation rate was higher for the strawberry–kale mix compared to the strawberry–water mix. The untreated sample showed the highest degradation rate, followed by HPP, PEF and, then thermal. The relative anthocyanin bioaccessibility after gastric digestion was 10% higher for the thermally and PEF treated samples. Anthocyanin bioaccessibility after intestinal digestion was low due to instability at a neutral pH, especially for the strawberry–kale mix, and after thermal treatment. The storage period did not influence the relative bioaccessibility; yet, the absolute content of bioaccessible anthocyanins was decreased after storage. This research further presents that processing and formulation strongly affect the stability and bioaccessibility of anthocyanins during storage.
title: Rare complications related to image-guided pulmonary radiofrequency ablation : a retrospective study in 462 patients.
Creators: name: Alberti, Nicolas
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neoplasia
subject: Ablation procedures
subject: CT
subject: Cone beam CT
subject: Interventional non-vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this retrospective study was to determine, evaluate, describe and prevent rare complications after PRFA of the...
title: Postpancreatectomy Hemorrhage: Imaging and Interventional Radiological Treatment
Creators: name: Matsuura, Tomonori
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Haemorrhage
subject: Stents
subject: Embolisation
subject: Catheters
subject: CT
subject: Catheter arteriography
subject: Pancreas
subject: Interventional vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this educational exhibit is to 1) Describe the clinical features of postpancreatectomy hemorrhage (PPH) 2)Illustrate the emergency role of CT angiography in the evaluation and localization of active PPH 3) Discuss vascular interventional...
Effects of Enhanced Coagulation and Ozonation on the Formation of Trihalomethanes and Haloacetic Acids Under Controlled Chlorination Conditions
Creators: name: Arlotta, Christie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Thi project evaluated the impact of enhanced coagulation and subsequent ozonation for the control of halogenated disinfection by-products (DBPs) in drinking water. Each of the nine raw waters sampled were chosen to represent a different element of the 3x3 Total Organic Carbon (TOC)/Alkalinity matrix established by the U.S. Environmental Protection Agency (USEPA). This matrix is part of the Stage 1 Disinfectants/Disinfection By-Products(D/DBP) Rule that requires specific percent reductions of TOC concentration based on the TOC and alkalinity of the raw water. The intention of the D/DBP Rule is to reduce public exposure to potentially harmful chemicals that form as a result of disinfecting water with chlorine. Each raw water was treated under enhanced coagulation conditions and then settled . A portion of the coagulated and settled water was then ozonated at a 1:1 O3 to TOC ratio by weight, at the pH resulting after coagulation. The three different fractions for each water utility (raw, coagulated, and post-ozonated water) were analyzed for pH, turbidity, TOC, dissolved oxygen carbon (DOC), ultraviolet absorbance at 254 nm (UV254), biodegradable DOC (BDOC) and 24-hour chlorine demand. Each fraction of water was then chlorinated under uniform formation conditions, quenched and analyzed for the four trihalomethanes (THMs) and all nine haloacetic acids (HAAs). The results show that enhanced coagulation removed the appropriate levels of TOC required by the USEPA, for all but one water sample. The percent removal of TOC increased with increasing raw water TOC concentration. The percent removals, as well as the trends, of UV254 absorbance were very similar to the percent removals of TOC. The results also showed that THM and HAA formation potentials were reduced in the coagulated waters in a similar manner as the reduction of UV254 absorbance and TOC concentration. When coagulation was followed by ozonation, the THM and HAA formation potentials decreased further. However, water samples that were ozonated before coagulation produced lower THM and HAA formation potentials than the post-ozonated samples. For waters with high bromide concentrations, the distribution of THM and HAA species favored the brominated compounds, when compared to waters with low bromide concentrations. TOC and UV254 absorbance were shown to be good indicators of THM and HAA formation potential, regardless of the treatment applied.
title: Spot Fluoro – A novel innovative approach to reduce the dose in interventional procedures – advantages and drawbacks
Creators: name: Borota, Ljubisa
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional vascular
subject: Fluoroscopy
subject: Embolisation
subject: Aneurysms

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Introduction and aim of the study The neurointerventional procedures have become moreand more complex which results in a significant prolongation of the fluoroscopic time during a procedure. Hence dose saving techniques are moreimportant for...
title: Between separation and encounter: Levinasian metaphysics and the question of phenomenology
Creators: name: Rosenzweig, Trina Esther
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Contemporary French phenomenologists, including Emmanuel Levinas, explored the boundaries of the phenomenological method of Edmund Husserl. In Totality and Infinity Levinas offers a phenomenology of an encounter with an Other that challenges the very limits of the subject. In “The Theological Turn of French Phenomenology,” Dominique Janicaud claims that this Other breaks with the phenomenological method—by abandoning immanent phenomenality and by subversively importing theological content into phenomenological reflection. To the contrary, I argue that Levinas offers a genuinely phenomenological work and that phenomenology cannot preclude the theological implications that may result therefrom. I draw on Jean-Luc Marion’s analysis of Husserl’s principle of all principles to challenge Janicaud’s preclusion of absolute Otherness from intentional experience and subsequently defend Levinas on the following grounds: (i) that phenomenology must accept the possibility of an encounter with the divine and (ii) that Levinas never leaves the scope of phenomenological reflection insofar as his talk of God is always also talk of the human Other. The defence argues that Levinas does not offer a methodologically untenable phenomenology of God but rather a methodologically sound phenomenology of an experience with the infinite—an infinite which definitively confirms only the subject’s finite limits but which opens theological possibilities.
Treatment of Air Contaminated with Chlorobenzene and Benzene Using a Biofilter
Creators: name: Medley, Caroline
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: In this project, a laboratory-scale biofilter was constructed and operated to treat an air stream artificially contaminated with benzene and chlorobenzene at an average influent concentration of 390 ppmv each. It was designed as a modified trickle-bed reactor, packed to a depth of approximately 1 m with plastic pall rings (2.5 cm diameter x 2.5 cm length; Koch Engineering Company, Roswell, GA) and had an empty bed contact time of 2.5 minutes. Nutrients and buffer were supplied to the biomass via an aqueous solution that was recirculated intermittently over the packing. This solution flowed co-current to the airflow and was routed to a stainless steel clarifier, which served as a means of biomass removal by gravity settling. The overflow was discharged to a reservoir, from which it was recirculated back to the column at an instantaneous hydraulic loading rate of 31m[3]m[-2]d[-1]. The settled biomass in the clarifier was pumped intermittently to a drain. The column was seeded by continuously recirculating mixed liquor from an industrial activated sludge unit that had treated groundwater containing benzene and chlorobenzene. During the startup period, there were fluctuations in performance caused by the low pH level of the recirculation liquid, which had dropped to as low as 5. Better control of pH was achieved as a result of more frequent monitoring, which led to more stable operation. The biofilter was then operated for a period of eight weeks at an average organic loading rate of 4.2 kg chemical oxygen demand (COD) m[-3]d[-1]. Except for periods when the pH dropped to 60 or lower, the mean outlet concentrations of benzene and chlorobenzene were 6 ppmv and 9 ppmv respectively, corresponding to 98% removal of each species. The recirculation liquid was analyzed for the two contaminants and no detectable concentrations of either compound were found, demonstrating that removal of the contaminants did not occur by scrubbing. No problems with plugging associated with excessive biomass accumulation occurred. Results of this study suggest that relatively large, open synthetic media can be used to treat contaminated air at high organic loading rates if pH and moisture content are controlled adequately.
Additional file 1 of Association between systemic lupus erythematosus and autoimmune thyroid dysfunction in pediatric population: a single center experience
Creators: name: Shamma, Radwa Ahmed
name: Soliman, Hend Mehawed
name: Abdelfattah, Walaa
name: Badawy, Marwa Ahmed
name: Shafie, Eman Shafik
Publisher: name: figshare
Year: 2024
Subjects: subject: Physical Sciences not elsewhere classified
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Supplementary Material 1
Meeting the Coast Guard's Needs for Radiation Protection While Conducting Inspections of Freight Containers Containing Radioactive Materials Through Survey Instrumentation and Safe Work Practices
Creators: name: Danielczyk, Steven J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: United States Coast Guard (USCG) personnel may be exposed to ionizing radiation during inspections of radioactive material (RAM) shipments. This study assesses the potential exposures to USCG inspectors and reviews the requirements for survey instrumentation through a survey of regulatory requirements. It also examines isotopes shipped, quantities shipped, ports involved with RAM, and current work practices. While the frequency of RAM inspections is low — approximately 150 reported RAM movements in 20 United States ports from 1988-90 — the dose rates encountered, up to 200 mrem/hour, are not. This high dose rate situation is further complicated by USCG offices not having standardized portable survey meters, adequate training on RAM, or consistent safe work practices for conducting RAM inspections. In order to fill the requirements for instrumentation needs, seven portable survey meters were tested using American National Standards Institute (ANSI) procedures. These instruments were tested for System Accuracy, Spectral Dependence, Exposure Rate Limitations, Angular Dependence/Geotropism, Reproducibility, Response/Decay Time, Coefficient of Variance, Temperature Influences/Shock, Battery Lifetime in accordance with ANSI N13.4-1971: American National Standard for the Specification of Portable X- or Gamma Radiation Survey Instruments; N42.17A-1989: American National Standard Performance Specification for Health Physics Instrumentation - Portable Instrumentation for Use in Normal Environmental Conditions; N42.3-1969: American National Standard and IEEE Standard Test Procedure for Geiger-MuUer Counters; and N323-1978: American National Standard Radiation Protection Instrumentation Test and Calibration. All survey instruments were exposed to sources of Cesium 137 with an effective energy of 662 KeV, Americium 241 with an effective energy of 60 KeV, and Radium 226 with an effective energy of 830 KeV. Based on overall instrument response and cost, recommendations for standardized survey instruments for RAM shipment inspections and general contamination monitors were provided. Also recommended were training topics, use of check sources, calibration frequency, and safe work practices.
Mapping out spin and particle conductances in a quantum point contact
Creators: name: Krinner, Sebastian
name: Lebrat, Martin
name: Husmann, Dominik
name: Grenier, Charles
name: Brantut, Jean-Philippe
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study particle and spin transport in a single mode quantum point contact using a charge neutral, quantum degenerate Fermi gas with tunable, attractive interactions. This yields the spin and particle conductance of the point contact as a function of chemical potential or confinement. The measurements cover a regime from weak attraction, where quantized conductance is observed, to the resonantly interacting superfluid. Spin conductance exhibits a broad maximum when varying the chemical potential at moderate interactions, which signals the emergence of Cooper pairing. In contrast, the particle conductance is unexpectedly enhanced even before the gas is expected to turn into a superfluid, continuously rising from the plateau at 1/h for weak interactions to plateaux-like features at non-universal values as high as 4/h for intermediate interactions. For strong interactions, the particle conductance plateaux disappear and the spin conductance gets suppressed, confirming the spin-insulating character of a superfluid. Our observations document the breakdown of universal conductance quantization as many-body correlations appear. The observed anomalous quantization challenges a Fermi liquid description of the normal phase, shedding new light on the nature of the strongly attractive Fermi gases.
description: 14 pages, 8 figures
title: Facet joint syndrome: the role of the radiologist, from diagnosis to treatment.
Creators: name: Brat, Hugues
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Education and training
subject: Ablation procedures
subject: SPECT-CT
subject: MR
subject: CT
subject: Musculoskeletal spine
subject: Interventional non-vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To understand complexity of facet joint syndrome 2. To differentiate facet joint related pain from other causes (Fig.1) 3. To use appropriate diagnostic modalities (Fig.2) 4. To propose an age related treatment algorithm (Fig.3) 5. To appreciate...
Negotiating a Punctuated Landscape: A Study of Asyndetic Translation Based on Relevance Theory
Creators: name: Masson, Renée
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: asyndeton
relevance theory
translation
punctuation
literary translation
French
English
poetic effects
stylistic effects
rhetorical effects
Sperber and Wilson
cognitive effects
translated texts
comma

description: Little thought has been given to asyndeton in modern texts, including the translated text. In fact, if manuals on French-to-English translation even mention this troublesome case of punctuation, they almost certainly warn the student translator against replicating it in English, even in literary translation. Writing norms would forbid it, they warn. It would be taken as merely a sloppy case of comma use. Although asyndeton is typically considered a faux pas in English, replicating it may not always be a mistake. Inspired by Québécoise author Catherine Harton’s Traité des peaux (an especially asyndetic collection of short stories published in 2015), this thesis aims to study how asyndeton may be successfully translated from French into English in literary texts. To do so, it adopts Sperber and Wilson’s relevance theory, noting how this theory not only accounts for poetic effects but also provides a principle that can guide translators as they seek to replicate these effects. This thesis then uses relevance theory to analyze cases of asyndeton drawn from three stories in Harton’s collection. The study concludes that there are at least six cases where asyndeton may be effectively translated as asyndeton in literary texts.
Unsettled and Discontinuous: The Politics of Education Reform in Peru
Creators: name: Admin, RISE
name: Incorporated, Communications Development
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: Current reform agendas in Peru are markedly similar to what they were at the beginning of the 1990s, suggesting that many reform goals have not been reached. Small incremental gains may have been achieved by one administration only to be dismantled by another and to then be re- established, often partially, at a later stage. In this protracted process, the education sector has managed to take steps for improving the teaching profession, reforming the national curriculum, and developing a strong and valued learning assessment system. The long and discontinuous path in the development of these reforms has often meant that their implementation has only been partial, and that many key elements have been lost on the way. At the same time, many reforms—such as decentralization, the improvement of secondary schooling, and teaching quality—remain partial. And second- order reforms to bring about more fundamental changes in teaching and learning are yet to be developed. The discontinuities and other factors hindering the definition and consolidation of quality and learning reforms in Peru can be clearly linked to the political economy of education policymaking. However, the weakness of Peru’s state and institutions mean that mean that political economy cannot just be understood as the interplay of actors, negotiations, interests, compromises and settlements. In Peru, as in most of Latin America, “the vast differences in the enforcement and stability of rules (…) suggests that institutional strength should be treated as a variable, rather than a taken-for-granted assumption.”1 The characteristics of the policy process make it difficult to identify specific policies or reforms behind the improvements in the quality indicators in the past three decades—especially given that the trajectory of improvements began before some of the most important reforms of the period. At the same time, it is important to consider other contextual factors that may partly account for such improvements, as Peruvian society has experienced fundamental changes in its economic and social structure, and their impacts on educational improvement cannot be underestimated.
title: Review of individual radiation exposure and the impact of real-time radiation information on an Interventional Radiology (IR) team using real-time individual dosimeters for the insertion of central venous catheters
Creators: name: Yan, Yet Yen
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Workforce
subject: Occupational / Environmental hazards
subject: Catheters
subject: Fluoroscopy
subject: Radioprotection / Radiation dose
subject: Interventional vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: While central venous catheter (CVC) insertion accounts for a large proportion of many interventional radiology services, there remains a paucity of information regarding the radiation dose to the operator and team for such cases. Radiation safety is...
Standardized Benchmark Dose Calculation: Opportunities to Inform Science-Based Decisions in Human Health Assessments
Creators: name: Wignall, Jessica Ann
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Dose-response assessments are used to characterize the relationship between the dose of a compound and a health outcome in the context of a risk assessment. Benchmark dose modeling is often used to predict the dose at which a predetermined change in response will occur, based on data from animal or human studies However, limitations of using benchmark dose modeling include the need for expert judgment, its lack of transparency, and its inconsistentuse from chemical to chemical. We applied a standardized process for conducting benchmark dose modeling that minimizes model fitting and model selection decisions, to reduce the need for expert statistical judgment. This approach was successful for 72% of chemicals with dose-response data sets collected from risk assessments (255 out of 352 chemicals), and values calculated using this approach were significantly and highly correlated with values reported in human health assessments (R^2 of 0. 95).
236U In-Situ Production in High-Grade Mineralization at Cigar Lake, Athabasca Basin, Northern Saskatchewan
Creators: name: Stefanescu, Maria
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: Uranium
236U
AMS
Cigar Lake
236U/238U

description: Canada accounts for 15% of the world’s uranium production (World Nuclear Association). The Athabasca Basin in northern Saskatchewan Canada contains a number of high grade, uranium ore deposits which occur at, or immediately below, an unconformity between Archean and Paleoproterozoic metasediments and intrusive rocks and overlying Proterozoic sandstones. The uranium ores are largely composed of high concentrations of uraninite and Pitchblende with naturally occurring 238U/235U ratios. U- 236 (half-life of 23.42 Myr) will be produced when 235U absorbs a neutron and the nucleus does not fission. Because it is so long lived, a small amount 236U can be maintained at equilibrium levels in the natural uranium ores. One of the main questions of this research is whether or not these equilibrium levels reflect higher grades or larger amounts of uranium minerals as a result of elevated neutron fluxes from 238U and subsequent neutron absorption on 235U. As well, are there other elements within the system that will absorb these neutrons, thereby reducing that which will impinge on 235U. In this study, we have estimated the amount of 236U that is produced by calculating the neutron flux from uranium and evaluating the effects of spatially related elements such as B, Sm and Gd using their elemental neutron cross- sections and abundances. In this project we have calculated and simulated theoretically the production of 236U and then test the theoretical calculations using measurements of uranium isotopes by accelerator mass spectrometry (AMS). Once we understand the factors controlling the 236U concentration, we hypothesize that the relationship between 236U and 238U can be used as a geochemical vector within uranium exploration, with the equilibrium level possibly distinguishing between primary mineralization and remobilization and reprecipitation of this U within spatially associated secondary U mineralization.
Shell model description of Gamow-Teller strengths in $pf$-shell nuclei
Creators: name: Kumar, Vikas
name: Srivastava, P. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A systematic shell model description of the experimental Gamow-Teller transition strength distributions in $^{42}$Ti, $^{46}$Cr, $^{50}$Fe and $^{54}$Ni is presented. These transitions have been recently measured via $β$ decay of these $T_z$=-1 nuclei, produced in fragmentation reactions at GSI and also with ($^3${He},$t$) charge-exchange (CE) reactions corresponding to $T_z = + 1$ to $T_z = 0$ carried out at RCNP-Osaka.The calculations are performed in the $pf$ model space, using the GXPF1a and KB3G effective interactions. Qualitative agreement is obtained for the individual transitions, while the calculated summed transition strengths closely reproduce the observed ones.
description: 8 pages, 5 figures; Accepted for publication in The European Physical Journal A : Hadrons and Nuclei
Weak Planning Impairs Education: The Politics of Improving Learning Outcomes in South Africa
Creators: name: Admin, RISE
name: Incorporated, Communications Development
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: Political economy and ideology are important determinants of educational development. South Africa’s apartheid legacy, and the predominance of the upper secondary schoolleaving certificate, have shaped the policy discourse in ways that often marginalized foundational skills. After 1994, the political urgency of providing quality schooling to the emerging black middle class likely diverted attention from improving the quality of education for the poorest segments of society, despite official policy commitments to serve the poor. Despite these limitations, South Africa has seen gains in learning outcomes in the last 20 years, driven mainly by improvements among the least advantaged. Yet outcomes remain well below those of other middle-income countries, and several political and nonpolitical factors could impede further gains. Education planning capacity remains weak. The quality of teacher training at universities is poor. The electoral system rewards politicians who respond to popular demands, but such demands tend to focus on very visible phenomena such as school infrastructure and obtaining the grade 12 certificate. Making learning visible across all primary schools through better system development— and linking information to school accountability in ways that avoid pitfalls in South Africa’s recent past—are politically and ideologically charged. The reason? Corruption has adversely affected the schooling system, most noticeably for who is promoted, and the wider erosion of institutions caused by corruption undermines schooling in more insidious ways.
Liquid Residence Time Distribution in Micro-reactors with Complex Geometries
Creators: name: Hopley, Alexandra
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: Mirco-reactor
Residence Time Distribution
Crystallization
Model

description: Micro-reactors, enabling continuous processes at small scales, have been of growing interest due to their advantage over batch. These advantages include better scaling, as well as improved mass and heat transfer, though many new challenges arise due to the small scales involved such as non-negligible entrance effects and significant pressure drops. The flow in coils, rectangular channel serpentine plates, mix-and-reside plates, and complex liquid-liquid mixing plates was investigated and characterized using residence time distribution (RTD) tests. A pulse test was used to determine the RTD curve shape of these reactors at flowrates ranging from 20 to 100 g/min. A semi-empirical, multi-parameter model was used to describe the asymmetrical curves, while the axial dispersion model was used to describe the symmetrical ones. The Peclet number is given in function of the Reynolds number for the liquid-liquid plates that were found to be near-plug flow (Pe > 100). In a continuous mixing plate, the Pe ranged from 190 to 475 with Pe increasing as Re increased. The effect of straight channel sections in micro-reactors is also evaluated. Longer straight segments between micromixers resulted in the development of unidirectional flow and the occurrence of tailing in the RTD. Finally, the suitability of a liquid-liquid plate for a reactive liquid-solid system is evaluated. The plugging is determined visually and by measuring pressure increase; pressure started to increase after 5 minutes and the experiment had to be halted after 10 minutes due to plugging. Parallels between the particle size distribution and the residence time distribution curves are drawn. The particle size distribution of silver chloride at low flow rates is much wider than at high flowrates. The average particle size at high flowrates was also much lower (≈69nm) than at low flowrates (≈112nm).
title: Lateral patient repositioning performed immediately after CT-guided lung puncture: impact of a simple maneuver on the incidence of a post-biopsy pneumothorax
Creators: name: Michels, Peter
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neoplasia
subject: Cancer
subject: Safety
subject: Puncture
subject: Biopsy
subject: CT
subject: Thorax
subject: Lung
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To investigate the efficacy of lateral patient repositioning performed immediately after accomplishing ipsilateral CT-guided lung biopsy in order to prevent the occurrence of a postinterventional pneumothorax and the need of a drainage, after...
Haunted house dataset
Creators: name: Andersen, Marc Malmdorf
name: Schjødt, uffe
name: Price, Henry
name: Rosas, Fernando
name: Scrivner, Coltan
name: Clasen, Mathias
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Life Sciences
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This dataset contains data from a study on recreational fear conducted at a haunted attraction in Vejle, Denmark. The project from which this data was collected focussed on the relationship between fear and enjoyment in a recreational horror setting. The dataset contains self-report, behavioral and physiological data. Data should not be used for other purposes without first contacting M. Andersen. Email: mana[at]cas.au.dk Data collection procedure and results from these data have been published in the article: Andersen, M., Schjoedt, U., Price, H., Rosas, F.E., Scrivner, C. & Clasen, M. (2020). Playing With Fear: A Field Study in Recreational Horror. Psychological Science.
Health Provider Beliefs of the Adverse Health Effects of Environmental and Ecosystem Degradation: A Survey of Health Professionals and Review of the Literature
Creators: name: Truckner, Robert T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Little is known about health care provider engagement and interest in the health effects of human induced environmental and ecosystem degradation (HIED). A survey of 2177 members of the Wilderness Medical Society (WMS) was completed to better define the scope, interest and attitudes of these health care providers about the adverse human health effects of HIED. Data was analyzed from the 665 responses, a response rate of 35%. Results demonstrate health care providers identify a large number of health effects associated with environmental and ecosystem degradation. Over 80% of respondents report that HIED has affected the health of a patient they have cared for, 60% report a patient has asked about HIED affecting their health, and 93% report that they do not distribute information to patients about HIED. 76.1% of respondents believe or strongly believe that there is an unfulfilled need for information and education about the adverse health effects of HIED. Respondents report CME, journal articles and medical schools/residency programs as the best methods for raising health professional awareness. Results indicate a strong health professional belief in health effects of HIED, patient concern of the health effects of HIED and a lack of resources to educate both health care providers and patients of the adverse health effects of HIED.
Steady states and universal conductance in a quenched Luttinger model
Creators: name: Langmann, Edwin
name: Lebowitz, Joel L.
name: Mastropietro, Vieri
name: Moosavi, Per
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain exact analytical results for the evolution of a 1+1-dimensional Luttinger model prepared in a domain wall initial state, i.e., a state with different densities on its left and right sides. Such an initial state is modeled as the ground state of a translation invariant Luttinger Hamiltonian $H_λ$ with short range non-local interaction and different chemical potentials to the left and right of the origin. The system evolves for time $t>0$ via a Hamiltonian $H_{λ'}$ which differs from $H_λ$ by the strength of the interaction. Asymptotically in time, as $t \to \infty$, after taking the thermodynamic limit, the system approaches a translation invariant steady state. This final steady state carries a current $I$ and has an effective chemical potential difference $μ_+ - μ_-$ between right- ($+$) and left- ($-$) moving fermions obtained from the two-point correlation function. Both $I$ and $μ_+ - μ_-$ depend on $λ$ and $λ'$. Only for the case $λ= λ' = 0$ does $μ_+ - μ_-$ equal the difference in the initial left and right chemical potentials. Nevertheless, the Landauer conductance for the final state, $G=I/(μ_+ - μ_-)$, has a universal value equal to the conductance quantum $e^2/h$ for the spinless case.
description: 30 pages, REVTeX, 4 figures; minor updates and corrections to original submission, final published version
title: Percutaneous transpedicular vertebral fusion. Experimental work.
Creators: name: Strecker, Ernst
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Hernia
subject: Experimental investigations
subject: Fluoroscopy
subject: Musculoskeletal spine
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lower back pain is a widespread, costly and debilitating chronic disease affecting middle-aged and elderly patients. Frequently this is combined with increased movement between the adjacent vertebral bodies caused by: a flattened disc due to...
Additional file 1 of Communication during telemedicine consultations in general practice: perspectives from general practitioners and their patients
Creators: name: Nguyen, Amy D
name: White, Sarah J.
name: Tse, Tim
name: Cartmill, John A.
name: Roger, Peter
name: Hatem, Sarah
name: Willcock, Simon M.
Publisher: name: figshare
Year: 2024
Subjects: Cell Biology
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Supplementary Material 1