gebhart/patrepeval huggingface dataset:
Polynuclear Copper(II) Complexes as Catalysts for the Peroxidative Oxidation of Cyclohexane in a Room‐Temperature Ionic Liquid (2014)

Abstract The reaction of copper(II) nitrate hydrate with sodium 2‐[2‐(2,4‐dioxopentan‐3‐ylidene)hydrazinyl]terephthalate (Na 2 H L 1 ) in the absence or presence of imidazole (im) leads to the new complexes [(H 2 O)Cu 0.5 {(μ‐ L 1 ‐1κ O :2κ 3 N , O′ , O″ )Cu(H 2 O) 2 }] 2 ( 1 ) and [Cu(im)(μ‐H L 1 ‐1κ O :2κ 3 N , O , O′ )] 2 ( 2 ), respectively, whereas the 1D coordination polymer [Cu 2 (H 2 O) 2 (μ‐H 2 L 2 ‐1κ 3 N , O , O′ :2κ O″ )(μ‐ L 2 ‐1κ 3 N , O , O′ :2κ 2 N′ , O″ )] n ( 3 ) is obtained from Cu(NO 3 ) 2 · 2.5H 2 O and sodium 2‐[2‐(4,4‐dimethyl‐2,6‐dioxocyclohexylidene)hydrazinyl]terephthalate (Na 2 H L 2 ). All of the compounds were characterized by ESI‐MS, IR spectroscopy, elemental analysis and X‐ray diffraction analysis. Di‐ or tri‐deprotonated ligands display different coordination modes and lead to distinct nuclearities of the Cu II complexes depending on the conditions used for the syntheses. Complexes 1 – 3 were successfully tested as dual‐role catalysts for cyclohexane oxidation under acid‐free conditions in the ionic liquid [1‐butyl‐3‐methylimidazolium tetrafluoroborate, (bmim)(BF 4 )] as well as in acetonitrile. The application of the ionic liquid (IL) increased the product yield and turnover number and decreased the reaction time, in comparison with those for the use of the conventional acetonitrile solvent. Easy recycling of the catalyst, with preservation of almost the initial activity and selectivity, was also achieved by using the IL medium.
The Biochemistry of the Visual Cycle (2001)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Biochemistry of the Visual Cycle†Robert R. RandoView Author Information Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 45 Shattuck Street, Boston, Massachusetts 02115 Cite this: Chem. Rev. 2001, 101, 7, 1881–1896Publication Date (Web):May 30, 2001Publication History Received10 January 2001Published online30 May 2001Published inissue 1 July 2001https://pubs.acs.org/doi/10.1021/cr960141chttps://doi.org/10.1021/cr960141cresearch-articleACS PublicationsCopyright © 2001 American Chemical SocietyRequest reuse permissionsArticle Views2031Altmetric-Citations134LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Isomerization,Monomers,Nutrition,Organic compounds,Peptides and proteins Get e-Alerts
Bubble hierarchies (2014)

We introduce bubble hierarchies as an approach to generating algorithmic art from random hierarchies. The technique is based on repeatedly drawing color-coded circles to illustrate parent--child relationships. The algorithm is simple and produces densely packed structures similar to the concept of Apollonian gaskets. We demonstrate the influence of different parameters on the visual outcome, such as the number of created circles or the color encoding. Our algorithm also supports multiple seeding points and obstacles that can be used to influence the layout of the hierarchy.
Analizar, simplificar, eliminar (1996)

This article sets out the basic factors that, according to the author, should be taken into account to carry out radical and incremental improvement processes in Costa Rican organizations. It consists of three sections :, a.- Conceptualizing the Improvement Processes, where some facts and definitions are presented that clarify this issue and introduce the situation of Costa Rica within the world panorama of business competition; b.- Three activities to build radical and incremental improvement strategies, which list the stages and actions to be followed to conceive the improvement strategies and c.-Implementation: Demolishing Mental Barriers, where key aspects that affect the implementation of the processes of change in the Costa Rican environment, be it radical or incremental, exemplified by some of the author's experiences in his work as a business consultant over the last six years.
Polynucleotides. LIII. Conformation of dinucleoside monophosphates containing 8-methyladenosine residue as studied by proton magnetic resonance. (1978)

Conformation of dinucleoside monophosphates containing 8-methyladenosine (m8A) residue, which prefer a syn conformation, was analyzed by proton magnetic resonance studies. The dimers are 2'-5' and 3'-5' isomers of Apm8A, and m8Apm8A. The following results were obtained. The data for (2'-5') Apm8A are consistent with an anti (2')-anti (5'), right-handed stacked conformation. The data for (3'-5') Apm8A are consistent with a syn (3')-syn (5') and a high anti (3')-high anti (5') stacked conformation. The data for (3'-5') m8Apm8A can be explained by a syn (3')-syn (5') conformation with little stacking. The data for (2'-5') m8Apm8A can be explained by an anti (2')-syn (5') stacked conformation. These results are in accordance with the results of ultraviolet and circular dichroism studies.
Beyond 2010: Gaps, Challenges, and Priorities for the Future of Preclinical HIV Preexposure Prophylaxis (PrEP): Summary of the October 20–21, 2009 Workshop (2010)

A workshop entitled <i>Beyond 2010: Gaps, Challenges, and Priorities for the Future of Preclinical HIV Pre-Exposure Prophylaxis (PrEP)</i> was sponsored by the Division of AIDS (DAIDS) of the National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), on October 20-21, 2009, in Bethesda, Maryland. The objective of the workshop was to identify the main gaps in current knowledge, challenges, and priorities for the establishment of a PrEP preclinical pipeline and to also provide guidance for future directions of the field and DAIDS activities in this area. This 2-day workshop, through various presentations and breakout group discussions, specifically addressed four main topics that will be critical in identifying and advancing the next generation of PrEP candidates for clinical testing. The topics were (1) drug discovery, (2) pharmacokinetics (PK) and pharmacodynamics (PD), (3) animal models, and (4) delivery systems for prolonged activity. We report here a summary of the presentations and highlights of salient discussion topics from this workshop.
Microvascular anastomosis using a blood product sealant-adhesive. (1977)

In this experimental model, we have shown that a four suture repair with a biologic sealant adhesive significantly reduces hemorrhage and reduces operative time, while allowing a flap survival comparable to that obtained with standard techniques in rats undergoing a microvascular anastomosis. In heparinized rats undergoing the same procedure, the sealant adhesive significantly decreases hemorrhage and increases flap survival. Of significance is the fact that the platelet-fibrinogen-thrombin adhesive is biodegradable and does not induce a tissue reaction. We believe that this physiologic adhesive may become a useful adjunct in digital reimplantation. It appears to reduce operative time and heparin-induced bleeding.
GPU-Accelerated Nick Local Image Thresholding Algorithm (2015)

Binarization plays an important role in document image processing, particularly in degraded document images. Among all local adaptive image thresholding algorithms, the Nick method has shown excellent binarization performance for degraded document images. However, local image thresholding algorithms, including the Nick method, are computationally intensive, requiring significant time to process input images. In this paper, we propose three CUDA GPU parallel implementations of the Nick local image thresholding algorithm for faster binarization of large images. Our experimental results show that the GPU-accelerated implementations of the Nick method can achieve up to 150x performance speedup on a GeForce GTX 480 compared to its optimized sequential implementation.
Modelling security risk in critical utilities: The system at risk as a three player game and agent society (2016)

It becomes essential when reasoning about the security risks to critical utilities such electrical power and water distribution to recognize that the interests of producers and consumers do not fully coincide. They may have incentives to behave strategically towards each other, as well as toward some third party adversary. We therefore argue for the need to extend the prior literature, which has concentrated on the strategic, adaptive game between adversary and defender, towards 3-player games. But it becomes hard to justify modelling a population of consumers as a single, decision making actor. So we also show how we can model consumers as a group of mutually-influencing, yet not centrally co-ordinated, heterogeneous agents. And we suggest how this representation can be integrated into a game-theoretic framework. This requires a framework in which payoffs are known by the players only stochastically. We present some basic models and demonstrate the nature of the modelling commitments that need to be made in order to reason about utilities' security risk.
Effects of Particle Size on Cell Uptake of Model Triglyceride-Rich Particles with and without Apoprotein E (1994)

The effect of apoprotein E on cellular uptake of "VLDL-size" and "IDL-size" triacylglycerol-phospholipid emulsion particles was studied in J-774 macrophages and fibroblasts. In the absence of apoprotein E (apo E), uptake of the smaller IDL-size particles was up to 2-fold higher by mass and 100-fold higher as calculated by particle number. Apo E enhanced the uptake of both VLDL-size and IDL-size emulsion particles, but the effect was greater on the uptake of larger particles (4-5-fold) as compared to up to a 2-fold increase in the uptake of IDL-size particles. In fibroblasts, particle uptake was less than in macrophages (30-50%), but preferential uptake of smaller particles was similarly observed. Particle internalization was demonstrated by 125I-apo E degradation and resistance to particle release by heparin-suramin. In the absence of apo E, cholesteryl ester of emulsion particles (prepared with trace amounts of [3H]cholesteryl ester) was hydrolyzed to free cholesterol, proving internalization and intracellular metabolism. Double-label experiments using DiI-labeled emulsion particles, in the absence and presence of apo E, showed that emulsion particles are rapidly targeted to perinuclear lysosomes. Thus, at physiological concentrations of triglyceride-rich particles, non-receptor-mediated uptake is a mechanism for the uptake of VLDL-size and IDL-size particles into cells.
Physics-Inspired Garment Recovery from a Single-View Image (2018)

Most recent garment capturing techniques rely on acquiring multiple views of clothing, which may not always be readily available, especially in the case of pre-existing photographs from the web. As an alternative, we propose a method that is able to compute a 3D model of a human body and its outfit from a single photograph with little human interaction. Our algorithm is not only able to capture the global shape and overall geometry of the clothing, it can also extract the physical properties (i.e., material parameters needed for simulation) of cloth. Unlike previous methods using full 3D information (i.e., depth, multi-view images, or sampled 3D geometry), our approach achieves garment recovery from a single-view image by using physical, statistical, and geometric priors and a combination of parameter estimation, semantic parsing, shape/pose recovery, and physics-based cloth simulation. We demonstrate the effectiveness of our algorithm by re-purposing the reconstructed garments for virtual try-on and garment transfer applications and for cloth animation on digital characters.
Introduction (2019)

Collagens are recognised as important biomaterials. Devices made using collagen have been clinically successful and are well accepted by clinicians and by patients. Development of such devices requires a sound understanding of the structure, chemistry and biology of collagens. This introductory chapter includes a brief history of collagen and its application to materials, along with an outline of the topics covered in subsequent sections. The literature on collagen and its use as a biomedical material is now extensive, so this introduction also discusses the relative importance of different knowledge areas to the development of collagen-based products.
Fabrication technique of a compressible biocompatible interconnect using a thin film transfer process (2011)

A compressible multifunctional interconnect for out-of-plane MEMS structures has been fabricated using a thin film transfer bonding technique and bio-tolerable materials. The bulk material of the stretchable film consists of photo-patternable poly-dimethylsiloxane and is fabricated on a carrier substrate. The film is bonded to a slim-base platform. The carrier substrate of the thin film is released using an aluminum anodic dissolution technique. Probe arrays can be assembled perpendicularly into a slim-base platform. Once the probes are assembled a non-separable electrical connection is established.
Functional Nanogels as Platforms for Imparting Antibacterial, Antibiofilm, and Antiadhesion Activities to Stainless Steel (2012)

Abstract In this work, long‐term antibacterial, antiadhesion, and antibiofilm activities are afforded to industrial stainless steel surfaces following a green and bio‐inspired strategy. Starting from catechol bearing synthetic polymers, the film cross‐linking and the grafting of active (bio)molecules are possible under environmentally friendly conditions (in aqueous media and at room temperature). A bio‐inspired polyelectrolyte, a polycation‐bearing catechol, is used as the film‐anchoring polymer while a poly(methacrylamide)‐bearing quinone groups serves as the cross‐linking agent in combination with a polymer bearing primary amine groups. The amine/quinone reaction is exploited to prepare stable solutions of nanogels in water at room temperature that can be easily deposited to stainless steel. This coating provides quinone‐functionalized surfaces that are then used to covalently anchor active (bio)molecules (antibiofilm enzyme and antiadhesion polymer) through thiol/quinone reactions.
The prediction of early mortality by the ROX index of oxygenation and respiratory rate in diverse Canadian and Ugandan cohorts of unselected patient: a post-hoc retrospective analysis of 80,558 patient observations (2022)

Four patient cohorts were examined: Canadian medical, surgical and intensive care unit (ICU) patients, and all patients admitted to an African hospital. In all patients in-hospital mortality rose as ROX declined. Apart from ICU patients, ROX had a high discrimination for death within 72 hours. For non-ICU patients the negative predictive value of death within 72 hours for a ROX value <22 ranged from 0.994 to 1.000 Conclusion: In diverse cohorts of unselected patients, the ROX index has a high discrimination for death within 72 hours. However, the index has little or no prognostic value for patient admitted to ICU.
Function-oriented ionic polymers having high-density active sites for sustainable carbon dioxide conversion (2018)

Based on the concept of function-oriented synthesis, we pertinently developed a series of new functional ionic polymers, which exhibited good catalytic performance, robust constancy, and excellent substrate expansibility for sustainable catalysis of CO<sub>2</sub>-involved reactions.
Resource adaptation for audio-visual devices in the UPnP QoS architecture (2006)

Distributed multimedia applications increasingly populate audio-visual mobile and desktop devices. Crucial to the success of is the delivery of quality of service (QoS) which often refers to resource reservation on devices and network links. QoS is usually ensured by an appropriate admission control that determines if another request for resources can be granted without interfering already accepted data flows and processing resources. If an AC cannot be processed or proves to be unsatisfactory, proactive counter measures like resource adaptation may decrease the resource requirements of particular data flows. This paper presents a new methodology for resource adaptation in AV devices. It is incorporated into the UPnP QoS architecture and concealed behind a common set of interfaces. An implementation of resource adaptation proves that the resource utilization is optimized and the QoS can be acceptably maintained even in overloaded conditions.
Application of integrated reservoir management and reservoir characterization to optimize infill drilling, Class II (2000)

The major purpose of this project was to demonstrate the use of cost effective reservoir characterization and management tools that will be helpful to both independent and major operators for the optimal development of heterogeneous, low permeability carbonate reservoirs such as the North Robertson (Clearfork) Unit.
Adaptation to chronic ER stress enforces pancreatic β-cell plasticity (2022)

Pancreatic β-cells are prone to endoplasmic reticulum (ER) stress due to their role in insulin secretion. They require sustainable and efficient adaptive stress responses to cope with this stress. Whether episodes of chronic stress directly compromise β-cell identity is unknown. We show here under reversible, chronic stress conditions β-cells undergo transcriptional and translational reprogramming associated with impaired expression of regulators of β-cell function and identity. Upon recovery from stress, β-cells regain their identity and function, indicating a high degree of adaptive plasticity. Remarkably, while β-cells show resilience to episodic ER stress, when episodes exceed a threshold, β-cell identity is gradually lost. Single cell RNA-sequencing analysis of islets from type 1 diabetes patients indicates severe deregulation of the chronic stress-adaptation program and reveals novel biomarkers of diabetes progression. Our results suggest β-cell adaptive exhaustion contributes to diabetes pathogenesis.
A holistic overview of the impact of sulfur deficiency in pea facing water deficit (2022)

(Virtuel, Présentiel)
On Long-Term Stability of Miniaturized Electrochemical Sensors for Environmental Analysis (2000)

For complex water control miniaturized electrochemical sensors to be installed in a multiparameter measuring probe have been developed to measure important environmental parameters, such as pH value, redox potential and oxygen, nitrate and ammonium concentrations. Optimization of electrochemical systems, special sensor materials and constructive measures have contributed to make these sensors suitable for long-time measurements not only in surface and ground waters but also, under higher pressures, in wells and boreholes.
Ring Generators—New Devices for Embedded Test Applications (2004)

This paper presents a novel methodology of designing generators and compactors of test data. The essence of the proposed approach is to use a set of transformations, which alters the structure of the conventional linear feedback shift registers (LFSRs) while preserving the transition function of the original circuits. It is shown that after applying the transition function preserving transformations in a certain order, the resultant circuits feature a significantly reduced the number of levels of XOR logic, minimized internal fanouts, and simplified circuit layout and routing, as compared to previous schemes based on external feedback LFSRs, internal feedback LFSRs, and cellular automata, all implementing the same characteristic polynomial. Consequently, the proposed devices can operate at higher speeds than those of conventional solutions and become highly modular structures.
Monitoring of SAGD Steam-Chamber Conformance by Using White-Noise-Reflection Processes (2012)

Summary Thermal stimulation of bitumen in oil-sands reservoirs is a critical requirement for the success of steam-based recovery processes such as steam-assisted gravity drainage (SAGD). If the bitumen is not heated, it remains at its original viscosity, often in the millions of centipoise and, thus, is not mobilized so that it cannot be moved to a production well. All oil-sands reservoirs are heterogeneous, both with respect to geology and fluid composition, and, thus, conformance of steam in the reservoir is not uniform. At present, real-time monitoring of the steam-conformance zone in the reservoir is not possible, and, thus, the spatial distribution of heat delivery to the reservoir is uncertain. In this research, a new method for detecting heterogeneity and monitoring steam chambers has been developed and tested by detailed thermal/acoustic reservoir simulation. Here, a thermal fluid-flow simulator was one-way coupled to a wave-propagation simulator (information passed is density alone) to evaluate the potential of identifying rock and fluid discontinuities during a SAGD operation with coded white-noise-reflection processes. Digital communication systems use coded white-noise processes to make advantageous use of unexpected reflections from environmental heterogeneities. The proposed theory and subsequent simulations reveal that it is possible to resolve the edge of the SAGD steam chamber and to image the heterogeneity within the reservoir as it evolves with white-noise-reflection methods. The properties of the signals described provide an opportunity for property detection at lower power levels and higher frequencies than traditional seismic methods. Furthermore, the signals are such that the noise from recovery processes and the native reservoir environment do not interfere with the detection methods, allowing for the monitoring method to be used concurrently with the recovery process.
Properties of oxygenated cadmium sulfide (CdS:O) and their impact on CdTe device performance (2014)

In this work, we report on the development of a reactive sputtering process for CdS:O for high efficiency CdTe solar cells. X-ray diffraction, UV-Vis-NIR spectrophotometry, and Rutherford backscattering spectrometry were used to characterize the crystal structure, composition, and optical properties, respectively. All films were slightly Cd-rich, while the bulk oxygen content increased up to 45 at. % in direct proportion to the O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> partial pressure. Optical absorption in cells was reduced by increasing the oxygen fraction in the sputtering ambient. Optimal performance was obtained from cells with CdS sputtered in a 6% O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Ar ambient, yielding efficiency >14% and V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OC</sub> >840 mV.
Stability review of SLAC's L-band sheet beam klystron (2011)

A review of L-band sheet beam development at SLAC National Accelerator Laboratory's Klystron Department. The measured current density profile of a 40:1 elliptical beam is presented. A review of instabilities discovered while simulating the klystron are presented.