cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Khrushchev’s Corn Crusade: The Industrial Ideal and Agricultural Practice in the Era of Post-Stalin Reform, 1953–1964
Creators: name: Hale-Dorrell, Aaron Todd
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: A study of N. S. Khrushchev's crusade to make the USSR into a powerhouse corn producer, this dissertation sheds light on policy, governance, and life on Soviet collective farms in the post-Stalin decade, 1953-64. Neither contradictory nor irrational, as scholars have maintained, this agricultural program derived its rationale from the American model of corn-based industrial agriculture that, after World War II, spread to industrial countries and to the Third World, where it became known as the Green Revolution. Inspired by the results that modern technologies--chemicals, machines, hybrids--were achieving, Khrushchev developed policies that linked the USSR to transnational currents in agriculture, which took its place among the many spheres in which Soviet practices paralleled global trends. Expecting these initiatives to boost Soviet farms' productivity and to make the abundance heralding the communist utopia a reality, Khrushchev never lost faith that corn would rectify a chronic shortage of the livestock feed required to produce the meat and milk the USSR needed to catch up with and overtake America. By enriching citizens' diets and providing them a better life, Khrushchev hoped to seize a victory in the Cold War competition with capitalism and to win over Third World hearts and minds for the socialist cause. Drawing on documents from central and local archives, I investigate how officials and peasants implemented Khrushchev's policies, revealing the remarkable capacity of collective farmers and of officialdom to sidestep orders at every turn. As a result, the agrarian reforms proved imperfect and the returns, although substantial, did not match Khrushchev's pledges, thereby sapping his legitimacy. Industrial farming thrived in social, economic, and climatic conditions around the world, but in the Soviet Union these methods were thwarted by policy failures, ingrained bureaucratic norms, the climate, Khrushchev's own mistakes, widespread deceit by subordinates, and a labor crisis on the collective farms. These challenges remained to confront future reformers, but Khrushchev's efforts left a legacy that made industrial principles--and corn--a part of Soviet farming practice throughout subsequent decades.
Designing computer systems with MEMS-based storage
Creators: name: Schlosser, Steven W.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "For decades the RAM-to-disk memory hierarchy gap has plagued computer architects. An exciting new storage technology based on microelectromechanical systems (MEMS) is poised to fill a large portion of this performance gap, significantly reduce power consumption, and enable many new classes of applications. This research explores the impact that several different MEMS-based storage designs will have on computer systems. Results from five application studies show these devices reduce application I/O stall times by 3-10X and improve overall application performance by 1.6-8.1X. Further, integrating MEMS-based storage as a disk cache achieves a 3.5X performance improvement over a standalone disk drive. Power consumption simulations show that MEMS-based storage devices use up to 10X less power than state-of-the-art low-power disk drives. Many of these improvements stem from the fact that average access times for MEMS-based storage are 10X faster than disks and that MEMS devices are able to rapidly move between active and power-down mode. Combined with the differences in the physical behavior of MEMS-based storage, these characteristics create numerous opportunities for restructuring the storage/memory hierarchy."
Additional file 1 of Data-centric artificial intelligence in oncology: a systematic review assessing data quality in machine learning models for head and neck cancer
Creators: name: Adeoye, John
name: Hui, Liuling
name: Su, Yu-Xiong
Publisher: name: figshare
Year: 2024
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1. Search keywords.
Academia meets Industry Event 1
Creators: name: ARIES WP14 Members
Publisher: name: Zenodo
Year: 2019

description: The ARIES WP14, Promoting Innovation, intends to to ensure that technology developments inside ARIES are properly evaluated and assessed with the final aim to provide society with identified commercial applications of the supported research potential.
 Relation with industry is key to coordination and joint research activities, increasing synergies between laboratories, universities, specialized institutes and applied research institutes in the consortium. This deliverable reports the 1st ARIES meets industry event, which has been dedicated to Additive Manufacturing and Advanced Technologies for Accelerator Application.
description: {"references": ["ARIES Del14.2"]}
Digital Logic Using Molecular Electronics
Creators: name: Goldstein, Seth C.
name: Rosewater, Dan
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: A reconfigurable architecture is based on chemically-assembled electronic nanotechnology (CAEN). A molecular latch based on molecular RTDs provides I/O-isolation, voltage restoration, and fan-out using only 2-terminal devices
Förderung überfachlicher Kompetenzen. Entwicklung einer Planungshilfe
Creators: name: Odermatt, Yolanda
Publisher: name: Zenodo
Year: 2023
Subjects: Sonderpädagogik
Masterarbeit
Unterrichtsplanung
überfachliche Kompetenzen
Planungshilfe

description: In dieser Masterarbeit wurde ein Planungsinstrument zur gezielten Berücksichtigung überfachlichen Kompetenzen in der Unterrichtsplanung erarbeitet. Konkret soll eine entsprechende Planungshilfe die überfachlichen Kompetenzen bei der einzelnen Lehrperson tiefer verankern und die Implementierung in die Planungsroutine vereinfachen. Dokumentiert wird die Entwicklung der Planungshilfe mit und für das Sekundarstufenlehrteam eines Heilpädagogischen Zentrums. Im Detail beschrieben sind die erste Bestandesaufnahme und zwei Testphasen. Eine erste Variante der Planungshilfe wurde nach der ersten Testphase mit Fragebogen evaluiert als Basis einer adaptierten Version für die zweite Testphase. Die Auswertung der Testphasen fand als Gruppendiskussion statt. Die Teilnehmenden diskutierten den Einsatz der Planungshilfe und machten Verbesserungsvorschläge für den erfolgreichen Einsatz in der Zukunft.
Distributed control flow with classical modal logic
Creators: name: Murphy, Tom
name: Crary, Karl
name: Harper, Robert
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "In previous work we presented a foundational calculus for spatially distributed computing based on intuitionistic modal logic. Through the modalities [square] and [diamond] we were able to capture two key invariants: the mobility of portable code and the locality of fixed resources. This work investigates issues in distributed control flow through a similar propositions-as-types interpretation of classical modal logic. The resulting programming language is enhanced with the notion of a network-wide continuation, through which we can give computational interpretation of classical theorems (such as [square]A [is identical with] [symbol diamond symbol]A). Such continuations are also useful primitives for building higher-level constructs of distributed computing. The resulting system is elegant, logically faithful, and computationally reasonable."
Assessing Housing Rights in the Selected EU Countries: revised version
Creators: name: Aidukaitė, Jolanta
name: Ubarevičienė, Rūta
Publisher: name: Zenodo
Year: 2023
Subjects: housing policy
housing rights
welfare state
availability
affordability
adequacy
social housing
home ownership

description: The study aims to explore the state of the housing rights across the European Union (EU) countries and the instruments through which the EU supports housing as a social right. The sub-task, then, is to evaluate the state of the housing rights in selected EU countries, representing typical welfare state models and housing policy traditions: Denmark, the Netherlands, Belgium, Spain, Lithuania, and Poland. The results provide more insight into the current state of housing rights in the European countries and inform how this state has changed in recent decades. The results show that, in general, housing policy decisions and outcomes have shifted towards greater convergence in the EU Member States over the past decades. However, the overall trajectory of changes is not very positive: government expenditure on housing-related policies is declining, and the sector’s performance in ensuring housing availability, affordability and adequacy is not improving, and in some cases is even deteriorating. The analysis of the selected EU countries shows that the EU has a very few instruments to support housing rights. The right to housing is the responsibility of national states and is usually guaranteed at local/municipal level. Although European countries are becoming increasingly similar in terms of various housing indicators, typical housing policy regimes remain. For example, countries with a larger rental sector (private and/or public) have better rates of availability, affordability, and adequacy. Thus, countries which belong to social democratic or conservative-corporatist welfare state and housing policy regimes are in a better position than the Central and Eastern European and Mediterranean countries. Overall, our study shows that to increase housing rights and ensure better housing availability, affordability and adequacy, the public/social housing sector should be expanded. Tenant’s involvement in the management of the social housing sector is crucial to protect the sector from the state (attempts to privatize and stigmatize) and the market (rising prices).
Formation of discs around super-massive black hole binaries
Creators: name: Goicovic, Felipe G.
name: Cuadra, Jorge
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We model numerically the evolution of $10^4M_\odot$ turbulent molecular clouds in near-radial infall onto $10^6M_\odot$, equal-mass super-massive black hole binaries, using a modified version of the SPH code GADGET-3. We investigate the different gas structures formed depending on the relative inclination between the binary and the cloud orbits. Our first results indicate that an aligned orbit produces mini-discs around each black hole, almost aligned with the binary; a perpendicular orbit produces misaligned mini-discs; and a counter-aligned orbit produces a circumbinary, counter-rotating ring.
description: 4 pages, 4 figures, Proceedings IAU Symposium No. 312, 2014. Animations available at http://www.astro.puc.cl/~fgarrido/animations
Is there a relationship between executive functions and resilience in youth elite soccer players?
Creators: name: Lehmann, Jennifer
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: executive functions, resilience, youth elite soccer players
subject: 796 Sport

description: Background: 
While the relationship between cognitive performance and sport per- formance in youth elite soccer players has proponents as well as opponents, many aspects of this relationship remain unclear. Therefore, this quasi-experimental study wants to contribute to this relationship including the psychological aspect of resilience when investigating youth elite soccer players during an assessment selection for a representative team.
Methods: 
Questionnaires as well as computer-based tests were conducted.
Results: 
Results of this study showed no relationship between resilience and execu- tive function in youth elite soccer players. Furthermore, no differences in executive functions or in resilience were found between those players who are selected for a representative team and those who were not selected.
Conclusion: 
The results indicate that further research needs to be conducted to clarify possible relationships in more detail.
The Effect of Adolescent Community Disadvantage and Family Dynamics on Depression Trajectories from Adolescence to Young Adulthood
Creators: name: Chen, Minne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Understanding the mechanisms that result in depression trajectories has becoming pressingly important for the general well-being of the population as well as for informing prevention efforts. By incorporating the space and time dimensions, this paper investigates the effects of community disadvantage and parental social support during adolescence and how they affect the depression trajectories from adolescence through young adulthood using a multi-level growth curve approach. Findings suggest that parental social support, family having fun together, and living in single-mother households during adolescence, being a member of minority racial categories, parental education, and self-rated health are all significantly associated with depressive symptoms from adolescence to young adulthood. However, community disadvantage during adolescence does not significantly influence the trajectory of depressive symptoms, or only influences the trajectory of depressive symptoms to a minimal extent taken into account all other previously stated factors, neither do the interactions between community disadvantage and family factors.
Supplementary document for Investigating focus elongation using a spatial light modulator for high-throughput ultrafast-laser-induced selective etching in fused silica - 5784314.pdf
Creators: name: McArthur, Sam
name: Thomson, Robert
name: Ross, Calum
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplement 1: an alternative representation of selected data.
Quantum permanents and Hafnians via Pfaffians
Creators: name: Jing, Naihuan
name: Zhang, Jian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Quantum determinants and Pfaffians or permanents and Hafnians are introduced on the two parameter quantum general linear group. Fundamental identities among quantum Pf, Hf, and det are proved in the general setting. We show that there are two special quantum algebras among the quantum groups, where the quantum Pfaffians have integral Laurent polynomials as coefficients. As a consequence, the quantum Hafnian is computed by a closely related quantum permanent and identical to the quantum Pfaffian on this special quantum algebra.
description: 12 pages. Final expanded version with new title. Results are upgraded to 2-parameter cases
Caractérisation et localisation de l'endommagement destructuressolairespartechniqueacoustique : application aux récepteurs utilisés en CSP
Creators: name: Bonzoms, Florian
Publisher: name: Zenodo
Year: 2023

description: This thesis is part of an approach to optimising renewable energy production systems in the context of the energy transition. In order to increase the performance of solar tower power plants, it is necessary to improve the receivers in order to reach higher temperatures or a longer life span. Silicon carbide is a promising material for this purpose, but large parts cannot be made in one piece: a joining process is required. \brasic brazing alloys have been developed to produce silicon carbide assemblies that can withstand temperatures of the order of \qty{1000}{\celsius}, but their thermomechanical behaviour is poorly understood. The understanding of the failure mechanisms as well as the knowledge of the limits of use of these materials is essential to be able to produce reliable receivers. The IMPACT bench was developed to characterise materials under severe conditions of use, under concentrated solar flux. Two grades of \brasic braze alloys have been studied: CEA~0 and CEA~1. The results show that the CEA~1 grade is more resistant to thermomechanical stresses. Two damage mechanisms of the braze alloys were identified using acoustic emission. In addition, a promising approach to a predictive fracture model is presented.
Millennium-Studien im Open Access. TransMill - Ein kollaboratives Reihentransformationsprojekt für die Altertumswissenschaften
Creators: name: Weiß, Philipp
name: Schäffler, Hildegard
Publisher: name: Zenodo
Year: 2022

description: Monographien sind eine zentrale Publikationsform in den Altertumswissenschaften. Während die OA-Transformation von Zeitschriften mittlerweile auch in den altertumswissenschaftlichen Disziplinen vorangeschritten ist, stellt der freie digitale Zugang zu Monographien nach wie vor eine Ausnahme dar. Um die Entwicklung hin zu mehr OA-Monographien in den Altertumswissenschaften zu unterstützen, engagiert sich die Bayerische Staatsbibliothek in Verbindung mit dem Fachinformationsdienst Altertumswissenschaften - Propylaeum für die Open Access Transformation einer etablierten monographischen Reihe, der Millennium-Studien.
Data Sharing And Data Reuse: An Investigation Of Descriptive Information Facilitators And Inhibitors
Creators: name: Murillo, Angela
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This dissertation examines how descriptive information inhibits or facilitates data sharing and reuse. DataONE serves as the test environment. The objective is to identify descriptive information made discoverable through DataONE and subsequently determine what of this descriptive information is helpful for scientists to determine data reusability. This study uses a mixed method approach, which includes a data profiling assessment in the form of a quantitative and qualitative content analysis and a quasi-experiment think-aloud. A quantitative and qualitative content analysis was conducted on a stratified sample of data extracted from DataONE to examine types of descriptive information made available through the shared data. Participants searched a quasi-experiment interface and thought-aloud about what information inhibited or facilitated them to determine data reusability. Additionally, participants completed a post result usefulness survey, post search rank order survey, and a post search factors survey. The quantitative and qualitative content analysis shows that the shared data contains 30 unique pieces of descriptive information found in the records. The quasi-experiment think-aloud indicates that scientists found pieces of descriptive information particularly useful for their ability to determine data reusability. These include: (a) the data description, (b) the attribute table, and (c) the research methods. In conclusion, metadata schema, member node standards, and community standards, impact what types of descriptive information are provided through the shared data. Attribute and unit lists, research methods information, and succinctly written abstracts facilitate data reuse. However long abstracts and having the same information in multiple places, and the exclusion of data descriptions inhibit data reuse. The findings and recommendations assist funding agencies and scientific organizations in understanding the current state of data being shared and prioritizing how to meet the needs of scientists regarding data reuse. This dissertation provides guidance to developers of current and future data sharing environments and infrastructures, research data management and scientific communities, scientific data managers, creators of data management plans, and funding agencies; and has implications beyond DataONE.
Dynamic Invariants in Protein Folding Pathways Revealed by Tensor Analysis
Creators: name: Ramanathan, Arvind
name: Langmead, Christopher J.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Recent advances in molecular dynamics simulation technologies (e.g., Folding@Home, NAMD, Desmond/Anton) have, for the first
time, enabled scientists to perform all-atom simulations over timescales relevant to protein folding. Unfortunately, the concomitant
increase in the size of the resulting data sets presents a barrier to understanding the molecular basis of folding. In particular, long
simulations make it harder to identify and characterize important microstates, and the collective conformational dynamics that influence
and enable the transitions between them. We address these problems by introducing a novel tensor-based method for performing a
spatio-temporal analysis of protein folding pathways. We applied our method to folding simulations of the villin head-piece generated
by the Pande group using Folding@Home. Using our method, we were able to identify three regions in this protein that exhibit similar
collective behaviors across multiple simulations. We were also able to identify cross-over points in these simulations leading to different
conformational subspaces. Our results indicate that these three regions may act as folding units, and that the observed collective motions
may represent important dynamic invariants in the folding process. Thus, our spatio-temporal analysis method shows promise as a means
for obtaining novel insights into protein folding pathways.
Resolving unoccupied electronic states with laser ARPES in bismuth-based cuprate superconductors
Creators: name: Miller, Tristan L
name: Ärrälä, Minna
name: Smallwood, Christopher L.
name: Zhang, Wentao
name: Hafiz, Hasnain
name: Barbiellini, Bernardo
name: Kurashima, Koshi
name: Adachi, Tadashi
name: Koike, Yoji
name: Eisaki, Hiroshi
name: Lindroos, Matti
name: Bansil, Arun
name: Lee, Dung-Hai
name: Lanzara, Alessandra
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Angle-resolved photoemission spectroscopy (ARPES) is typically used to study only the occupied electronic band structure of a material. Here we use laser-based ARPES to observe a feature in bismuth-based superconductors that, in contrast, is related to the unoccupied states. Specifically, we observe a dispersive suppression of intensity cutting across the valence band, which, when compared with relativistic one-step calculations, can be traced to two final-state gaps in the bands 6 eV above the Fermi level. This finding opens up possibilities to bring the ultra-high momentum resolution of existing laser-ARPES instruments to the unoccupied electron states. For cases where the final-state gap is not the object of study, we find that its effects can be made to vanish under certain experimental conditions.
description: 5 pages, 4 figures
Correcting Factual Misperceptions: How Source Cues Matter
Creators: name: Wager, Emily
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: From the birther movement to the push of “alternative facts” from the White House, recent events have highlighted the prominence of misinformation in the U.S. This study seeks to broaden our understanding of under what conditions factual misperceptions may be effectively corrected. Specifically, I use Social Identity Theory to argue that ingroup members, specifically co-partisans and peers, are perceived to be more credible, and in turn are more effective correctors, than outgroup members (out-partisans and elites), contingent on identity strength. I also argue that peers should be effective correctors among those with low levels of institutional trust. To test my expectations, this study employs a 2 x 2 experimental design with a control group to determine how successful various source cues are at changing factual beliefs about a hotly debated topic in the U.S.— immigration. Overall I find preliminary support for my expectations.
Prediction of outcome in breast cancer patients using gene expression profiling
Creators: name: Oh, Daniel S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Breast cancer, the most common cancer diagnosed in women, is a complex and heterogeneous disease. In order to make the best treatment decision for a breast cancer patient, it is important to accurately determine that patient's risk of recurrence and the therapy to which that patient's tumor is most likely to respond. The prognostic and/or predictive factors currently accepted for use in primary breast cancer decision making (i.e. lymph node status, tumor size, nuclear grade, etc.) are not enough to accurately identify those patients who may require therapy and gives little information about what therapy they might best benefit from. Recent discoveries using gene expression profiling have greatly improved our understanding of the molecular pathogenesis of breast cancer. We believe that gene expression profiling may also improve the prognostication and/or prediction of breast cancer outcomes, and thus, the main objective of this work has been to develop and test gene expression-based predictors of outcome in breast cancer patients. First, we developed an expression-based predictor of outcome for Estrogen Receptor (ER) and/or Progesterone Receptor (PR)-positive breast cancer patients using biological differences among these tumors. Second, we developed a predictor for objectively classifying tumors into one of five intrinsic subtypes and validated this using multiple test sets. Next, using a single patient dataset, we determined the concordance in outcome predictions made by several different gene expression profiles (developed on different platforms by different laboratories). Lastly, we developed gene expression-based predictors for response to neoadjuvant chemotherapy. In summary, this work shows that gene expression profiling holds great promise in being clinically useful in the treatment decision-making process for breast cancer patients.
Considering Polymorphism in Change-Based Test Suite Reduction
Creators: name: Parsai, Ali
name: Soetens, Quinten David
name: Murgia, Alessandro
name: Demeyer, Serge
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: With the increasing popularity of continuous integration, algorithms for selecting the minimal test-suite to cover a given set of changes are in order. This paper reports on how polymorphism can handle false negatives in a previous algorithm which uses method-level changes in the base-code to deduce which tests need to be rerun. We compare the approach with and without polymorphism on two distinct cases ---PMD and CruiseControl--- and discovered an interesting trade-off: incorporating polymorphism results in more relevant tests to be included in the test suite (hence improves accuracy), however comes at the cost of a larger test suite (hence increases the time to run the minimal test-suite).
description: The final publication is available at link.springer.com
Additional file 1 of Genome-scale analysis of Arabidopsis splicing-related protein kinase families reveals roles in abiotic stress adaptation
Creators: name: Rodriguez Gallo, M. C.
name: Li, Q.
name: Devang, M.
name: Uhrig, R. G.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1.
Direct normal irradiance forecasting by artificial intelligence and predictive control of a solar reactor
Creators: name: Karout, Youssef
Publisher: name: Zenodo
Year: 2023

description: As a result of human activity in recent decades, the planet is facing existential threats that require swift action. SFERA III is one of several research projects aiming to fulfill the EU's green vision. Its goal is to provide adapted technical solutions for concentrated solar power systems. This thesis contributes to SFERA III in two ways: first, solve problems related to solar irradiance intermittence, by providing an intrahour direct normal irradiance (DNI) forecasting model; second, propose a model based predictive controller, taking advantage of DNI forecasts, to maintain the stability of a solar reactor designed to produce syngas. The first part of this thesis exhibits a hybrid model for the intrahour forecasting of DNI. It combines a knowledge-based model, that is used for clear-sky DNI forecasting from DNI measurements, with a machine-learning-based model, that evaluates the impact of atmospheric disturbances on the solar resource, through the processing of high dynamic range sky images provided by a ground-based camera. The performance of the hybrid model is compared with that of two machine learning models based on past DNI observations only. The results highlight the pertinence of combining knowledge-based models with data-driven models, and of integrating sky-imaging data in the DNI forecasting process. The second part of the thesis deals with the modeling and control of a solar reactor designed to produce syngas, by exploiting concentrated solar power. A reactor model based on the thermodynamic equilibrium is developed. Then, two model-based predictive control strategies are proposed: MPC strategy 1 aims to maintain the reactor's temperature at its nominal value; MPC strategy 2 aims to maintain the reactor's temperature at nominal value, while maximizing the use of solar energy. Finally, these controllers are compared to a reference controller, which is a combination of a rule-based controller and an optimized adaptive PID controller. The robustness of the controller to forecast errors is also studied by testing different DNI forecasting models.
Process Study, Simulation, and Optimization of the Direct Conversion of Biomass to Ethyl Levulinate
Creators: name: Woloszyn, Joanne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: Biomass
Cellulose
Esterification
Ethyl levulinate
Levulinate ester
Levulinic acid
One-pot process
Reaction kinetics
Scale-up
Simulation
Thermodynamics

description: Lignocellulosic biomass is a promising alternative to non-renewable fossil fuel resources for the sustainable production of fuels and chemicals. Levulinic acid (LA) is considered to be a versatile platform chemical which can be derived from biomass and further upgraded to high-value products like levulinate esters. In this work, the direct chemical conversion of lignocellulosic biomass to ethyl levulinate (EL) through LA was studied in collaboration with Gascon Biomass Research Inc. in an effort to valorize their surplus of lignocellulosic feedstock obtained from biomass recycling activities. A novel one-pot, biphasic, acid-catalyzed hydrolysis-esterification process developed by Prof. Tom Baker's lab (uOttawa Chemistry) was used. Kinetic analyses of the overall reaction pathway and major reaction steps were performed to investigate the effect of reaction conditions such as time, temperature, alcohol concentration, and catalyst concentration and evaluate the kinetic and thermodynamic parameters. Reactions were well modeled by power law rate equations with applicability of the Arrhenius expression and exhibited nearly first-order dependence with respect to each of the corresponding reactants and catalyst, as expected. Kinetic studies of LA esterification to various levulinate esters showed that the reaction is endothermic, endergonic, non-spontaneous, and non-rate-limiting. Increased alcohol alkyl chain length and branching reduced the thermodynamic favourability of LA esterification, likely due to steric effects. Process considerations such as reactor pressure, LA and EL partitioning, solvent:feedstock ratio, solvent recycling, and alternative feedstocks were investigated through various lab-scale studies and simulation case studies with UniSim® Design. The results of experimental studies informed the development of a preliminary potential process flow diagram consisting of eleven batch slurry reactors under agitation in parallel. The product streams feed into a continuous separation process composed of flash vessels and distillation columns to separate and purify the various products, intermediates, unconsumed reactants, and recoverable catalyst and solvent. This work ultimately informs decisions regarding future pilot-scale experiments, process design, and optimization for the envisioned large-scale biorefinery to produce EL.
Additional file 2 of Role of oxidative stress and inflammation-related signaling pathways in doxorubicin-induced cardiomyopathy
Creators: name: Shi, Saixian
name: Chen, Ye
name: Luo, Zhijian
name: Nie, Guojun
name: Dai, Yan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Table S1: Some drugs that exert cardioprotective effects by acting on the Nrf2 / keap1 / ARE signaling pathway.
Linear magnetoresistance caused by mobility fluctuations in the n-doped Cd3As2
Creators: name: Narayanan, A.
name: Watson, M. D.
name: Blake, S. F.
name: Chen, Y. L.
name: Prabhakaran, D.
name: Yan, B.
name: Bruyant, N.
name: Drigo, L.
name: Mazin, I. I.
name: Felser, C.
name: Kong, T.
name: Canfield, P. C.
name: Coldea, A. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cd3As2 is a candidate three-dimensional Dirac semi-metal which has exceedingly high mobility and non-saturating linear magnetoresistance that may be relevant for future practical applications. We report magnetotransport and tunnel diode oscillation measurements on Cd3As2, in magnetic fields up to 65 T and temperatures between 1.5K to 300K. We find the non-saturating linear magnetoresistance persist up to 65T and it is likely caused by disorder effects as it scales with the high mobility, rather than directly linked to Fermi surface changes even when approaching the quantum limit. From the observed quantum oscillations, we determine the bulk three-dimensional Fermi surface having signatures of Dirac behaviour with non-trivial Berry's phase shift, very light effective quasiparticle masses and clear deviations from the band-structure predictions. In very high fields we also detect signatures of large Zeeman spin-splitting (g~16).
description: 5 pages, 3 figures
Una propuesta de política pública: Inversión en investigación científica y tecnológica a través de impuesto por ventas netas en grandes contribuyentes .
Creators: name: Vivanche Mansilla, David Andrés
Publisher: name: figshare
Year: 2022
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: 130101 Continuing and Community Education
subject: FOS: Educational sciences
subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: 140303 Economic Models and Forecasting
subject: 140199 Economic Theory not elsewhere classified
subject: Economics
subject: 149999 Economics not elsewhere classified
subject: 140204 Economics of Education
subject: Education
subject: 140211 Labour Economics
subject: 140213 Public Economics- Public Choice
subject: 140214 Public Economics- Publically Provided Goods
subject: Sociology
subject: 130108 Technical, Further and Workplace Education
subject: 140218 Urban and Regional Economics
subject: 140219 Welfare Economics

description: Una propuesta de política pública: rInversión en investigación científica y tecnológica a través de impuesto por ventas netas en grandes contribuyentes.
Computer-based Design of β-sheet Containing Proteins
Creators: name: Kim, Doo Nam
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Protein design is an excellent test of the minimal determinants of protein structure. Although 70% of naturally occurring proteins contain β-sheets, most previous design efforts have been limited to α-helix bundle proteins or the redesign of naturally occurring proteins. Here, we test and develop computer based methods for designing proteins rich in β-strands. The molecular modeling program Rosetta was used for three separate design tasks: (1) the design of α/β and α+β proteins with a new method called SEWING, which builds proteins from pieces of naturally occurring proteins, (2) the stabilization of β-sheet proteins via the redesign of surface-facing residues, and (3) the de novo design of β-sandwich proteins. This research showed that it is possible to extend the SEWING method to non-α-helix proteins, allowing the incorporation of structural features found in nature, and that it is possible to dramatically boost protein thermal stability (> 25oC) with the redesign β-sheet surfaces. However, we also found that the de novo design of β-sandwich proteins still remains an elusive goal.
Efficient Task Execution and Refinement through Multi-Resolution Corrective Demonstration
Creators: name: Cetin  Mericli
name: Veloso, Manuela M.
name: H. Levent  Akin
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Computationally efficient task execution is very important for autonomous mobile robots endowed with limited on-board computational capabilities. Most robot control approaches assume fixed state and action representations, and use a single algorithm to map states to actions. However, not all instances of a given task require equally complex algorithms and equally detailed representations. The main motivation for this work is a desire to reduce the computational footprint of performing a task by allowing the robot to run simpler algorithms whenever possible, and resort to more complex algorithms only when needed. We contribute the Multi-Resolution Task Execution (MRTE) algorithm that utilizes human feedback to learn a mapping from a given state to an appropriate detail resolution consisting of a state and action representation, and an algorithm. We then present Model Plus Correction (M+C), an algorithm that complements an existing robot controller with corrective human feedback to further improve the task execution performance. Finally, we introduce Multi-Resolution Model Plus Correction (MRM+C) as a combination of MRTE and M+C. We provide formal definitions of MRTE, M+C, and MRM+C, showing how they relate to general robot control problem and Learning from Demonstration (LfD) methods. We present detailed experimental results demonstrating the effectiveness of proposed methods on a simulated goal-directed humanoid obstacle avoidance task.
Final state interactions at the threshold of Higgs boson pair production
Creators: name: Zhang, Zhentao
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effect of final state interactions at the threshold of Higgs boson pair production in the Glashow-Weinberg-Salam model. We consider three major processes of the pair production in the model: lepton pair annihilation, ZZ fusion, and WW fusion. We find that the corrections caused by the effect for these processes are markedly different. According to our results, the effect can cause non-negligible corrections to the cross sections for lepton pair annihilation and small corrections for ZZ fusion, and this effect is negligible for WW fusion.
description: 5 pages
Eliminating machine duplicity in traceroute-based Internet topology measurements
Creators: name: Burch, Hal
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "One of the hurdles faced by Internet topology measurements is machines appearing within the induced topology many times, each time with a different IP address, sometimes many hops apart. Most topology measurements are based on traceroute, which may reult in a machine responding with different IP addresses in different traceroutes. There are three major techniques known for finding or detecting pairs of IP addresses belonging to the same machine. However, two of the three techniques naively require quadratic packets in the number of IP addresses to test. This paper presents practical, scaleable algorithms for each technique, using three novel methods to divide the input set to make the quadratic techniques practical on large sets. For each technique, the error is analyzed, looking at both the source and amount of error the technique exhibits, as well as looking at how responsive machines on the Internet are to the technique."
Dynamic Configuration of Resource-Aware Services
Creators: name: Poladian, Vahe
name: Joao Pedro Sousa
name: Garlan, David
name: Shaw, Mary
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: An important emerging requirement for computing systems is the ability to adapt at run time, taking advantage of local computing devices, and coping with dynamically changing resources. Three specific technical challenges in satisfying this requirement are to (1) select an appropriate set of applications or services to carry out a user's task, (2) allocate (possibly scarce) resources among those applications, and (3) reconfigure the applications or resource assignments if the situation changes. In this paper, we show how to provide a shared infrastructure that automates configuration decisions given a specification of the user's task. The heart of the approach is an analytical model and an efficient algorithm that can be used at run time to make near-optimal (re)configuration decisions. We validate this approach both analytically and by applying it to a representative scenario.
The functions and initial reinforcement of non-suicidal self-injury: a startle modulation examination
Creators: name: Franklin, Joseph C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Although non-suicidal self-injury (NSSI) is a pernicious and increasingly prevalent behavior, why people start and continue to engage in NSSI still is poorly understood. To elucidate these issues, the present study utilized a sample of 73 undergraduates (33 control; 24 affect dysregulation; 16 NSSI) and employed psychophysiological measures of affect (startle-alone reactivity) and quality of information processing (prepulse inhibition), and experimental methods involving a NSSI-proxy to mimic the NSSI process. Consistent with theory, it was predicted that the NSSI group would display cognitive-affective regulation after the NSSI-proxies whereas the control group would display dysregulation after the NSSI-proxy. Additionally, consistent with theory about initial reinforcement of NSSI, it was predicted that the affect dysregulation group would display dysregulation to the first, but regulation to the second NSSI-proxy. Results supported hypotheses, providing the best evidence yet for why people start and continue to engage in NSSI.
Efficient Filtering in Publish-Subscribe Systems using Binary Decision Diagrams
Creators: name: Campailla, Alexis
name: Chaki, Sagar
name: Clarke, Edmund M
name: Somesh  Jha
name: Veith, Helmut
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Implicit invocation or publish-subscribe has become an important
architectural style for large-scale system design and
evolution. The publish-subscribe style facilitates developing
large-scale systems by composing separately developed
components because the style permits loose coupling between
various components. One of the major bottlenecks
in using publish-subscribe systems for very large scale systems
is the efficiency of filtering incoming messages, i.e.,
matching of published events with event subscriptions. This
is a very challenging problem because in a realistic publishsubscribe
system the number of subscriptions can be large.
In this paper we present an approach for matching published
events with subscriptions which scales to a large number
of subscriptions. Our approach uses Binary Decision Diagrams,
a compact data structure for representing boolean
functions which has been successfully used in verification
techniques such as model checking. Experimental results
clearly demonstrate the efficiency of our approach.
Additional file 3 of Role of oxidative stress and inflammation-related signaling pathways in doxorubicin-induced cardiomyopathy
Creators: name: Shi, Saixian
name: Chen, Ye
name: Luo, Zhijian
name: Nie, Guojun
name: Dai, Yan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Table S2: Some drugs that exert cardioprotective effects by acting on the NOX signaling.
SFERA-III D9.1: In-situ evaluation of the mechanical health of tower solar receivers using acoustic emission methods
Creators: name: Bonzoms, Florian
name: Chaumat, Valérie
name: Chotard, Thierry
name: Faugeroux, Olivier
name: Guillot, Emmanuel
name: Thil, Stéphane
Publisher: name: Zenodo
Year: 2023

description: Materials used in solar receivers are exposed to high stresses, i.e. high temperatures (up to 1000° C in current solar towers, 1400°C for next generations, resp. 350 and 700°C for linear concentrators); high spatial thermal gradients (mainly due to the non-uniform concentrated solar irradiation) and high dynamic thermal gradient (e.g. fast during cloud passing or slow due to the daily cycling from dawn till dusk).
Due to these very severe conditions, the materials degrade over time, their properties change, leading to reduced performances and ultimately leading to the sudden ruin of the associated structure, increasing the cost of operation. Accurate in-situ measurements are required in order to select the materials (development and qualification stages with SFERA-III Research Infrastructures) or improve their lifetime and the optimal operation of a solar plant (commercial stage). However, the health evaluation of solar receivers is typically observed subjectively during downtime at night, or by sampling parts sent for laboratory analysis (MEB, XRD, chemistry...).
Thanks to recent unique advances, it can be envisaged to be determined objectively in-situ using acoustic techniques, as commonly used in infrastructure buildings such as bridges, sky-scrapers, dams or nuclear power plants. A subset of these techniques has been successfully tested and derived for concentrated solar conditions within SFERA-II as worldwide pioneers using a research solar furnace, carrying on much further the SFERA-I developments about accelerated ageing setups and protocols to assess the resistance of receivers. Yet enhancements of this work are required in order to further interpret the observed data into broad degradation mechanisms (delamination, cracks...) which will allow determining the actual remaining margin of the receiver of demonstration or commercial solar plants.