gebhart/patrepeval huggingface dataset:
Electron transfer reactivity of spinach ferredoxin (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectron transfer reactivity of spinach ferredoxinJill Rawlings, Scot Wherland, and Harry B. GrayCite this: J. Am. Chem. Soc. 1977, 99, 6, 1968–1971Publication Date (Print):March 1, 1977Publication History Published online1 May 2002Published inissue 1 March 1977https://pubs.acs.org/doi/10.1021/ja00448a047https://doi.org/10.1021/ja00448a047research-articleACS PublicationsRequest reuse permissionsArticle Views119Altmetric-Citations16LEARN 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 Get e-Alerts
Development and operation of Pulse Magnet at LANL’s PFF (2017)

This document presents an overview of the Pulsed Field Facility magnet, performance and design at LANL.
Analysis and Reduction of Mutual Coupling in a Microstrip Array With a Magneto-Electric Structure (2021)

This article provided a detailed analysis of the mutual coupling phenomena in the microstrip patch array and introduced a novel compact magnetoelectric structure as a planar decoupling element. The proposed decoupling structure, termed as the interconnected array of semicircularly slotted structure, was formed as a combination of the electric dipole, magnetic dipoles, and circular patches. This compact magnetoelectric structure improves the isolation between two patches by around 9 dB at the resonating frequency of the radiating antennas with the edge-to-edge spacing of only 0.057 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\lambda _0$</tex-math></inline-formula> . This planar design is spatially compact and can maintain the broadside radiation characteristics. The decoupling mechanisms were analyzed in terms the equivalent port transmission coefficients and the parasitically induced surface current density vector. A design method had been proposed along with an equivalent circuit representation of the of the band-notch structure. The fabricated structure was found to show good matching between the measured and simulated results.
Critical Process Parameters And Failure Analysis For Temporary Bonded Wafer Stacks (2016)

Temporary bonding is a ley process for almost any 3D integration scheme. It offers not only more stability during the thinning process but also allows handling for backside processing of thin wafers like interposers during subsequent process steps [1–2]. Although the temporary bonding technology is already used in high volume manufacturing and has proven high yield process, nevertheless, some limitation appears for some specific applications [3-4-5]. One critical failure origin is delamination, which can lead to wafer breakage and therefore yield loss. This separation of the device wafer and the carrier wafer typically occurs when the temporary bonded wafer stack (device wafer, carrier wafer and temporary bonding adhesive in between) experiences further processing done under high temperature and low vacuum like PECVD deposition. Further insight into processing parameters and a better understanding of the key contributing factors as well as its dependencies help to prevent this failure. To investigate the root cause of the delamination, thermoplastic materials, which are widely used for temporary bonding and debonding applications have been used as temporary bonding adhesives in this work. Different process parameters were investigated individually but also in combination to find the origin of the delamination. These parameters include post thinning annealing temperature, which was varied up to 370C, vacuum level, thermal gradient, bow and warp and intrinsic stress of the thin device wafer. After evaluation of the main parameters affecting the delamination appearance, two extreme cases were experimented in order to check the hypothesis. The first one exhibits delaminations even using a very soft processing conditions for a temporary bonding integration and the second case is able to withstand extreme processing conditions like high temperature up to 370C under vacuum of about 1mbar without delamination appearance. In addition, during this work, the mechanical coupling existing between the carrier and the device wafer thanks to the adhesive has been investigated. Here, a thermoplastic material was used in a temporary bonded structures using wafers with different coefficients of thermal expansion (CTE). During thermal treatment, this CTE difference induce important internal stress bow of the wafer stack. The temperature dependence of the mechanical coupling is monitored during the annealing. A mechanical decoupling between the two wafers occurs when above the polymer glass transition temperature. As a result, the rheology of the thermoplastic layer is found as a contributor to the delamination mechanism. Critical combinations of process parameters in temporary bonding process are then clearly identified and will be presented in this work.
Scalable Delivery of Dynamic Content Using a Cooperative Edge Cache Grid (2007)

In recent years, edge computing has emerged as a popular mechanism to deliver dynamic Web content to clients. However, many existing edge cache networks have not been able to harness the full potential of edge computing technology. In this paper, we argue and experimentally demonstrate that cooperation among the individual edge caches coupled with scalable server-driven document consistency mechanisms can significantly enhance the capabilities and performance of edge cache networks in delivering fresh dynamic content. However, designing large-scale cooperative edge cache networks presents many research challenges. Toward addressing these challenges, this paper presents cooperative edge cache grid (cooperative EC grid, for short)-a large-scale cooperative edge cache network for efficiently delivering highly dynamic Web content with varying server update frequencies. The design of the cooperative EC grid focuses on the scalability and reliability of dynamic content delivery in addition to cache hit rates, and it incorporates several novel features. We introduce the concept of cache clouds as a generic framework of cooperation in large-scale edge cache networks. The architectural design of the cache clouds includes dynamic hashing-based document lookup and update protocols, which dynamically balance lookup and update loads among the caches in the cloud. We also present cooperative techniques for making the document lookup and update protocols resilient to the failures of individual caches. This paper reports a series of simulation-based experiments which show that the overheads of cooperation in the cooperative EC grid are very low, and our architecture and techniques enhance the performance of the cooperative edge networks.
Tracking deformable moving objects under severe occlusions (2004)

We propose a nonlinear model for tracking a slowly deforming and moving contour despite significant occlusions. The contour is represented implicitly, and its motion is described by the action of a finite-dimensional group; we estimate both the implicit representation of the contour (its shape) and its motion. Our contribution consists in defining a generative model that is not subject to arbitrary re-parameterization, choice of (non-unique) key points or control points, and allows enforcing a dynamical model of motion when it is available. Otherwise, our approach allows enforcing simple phenomenological models, for instance low acceleration or low jerk.
Quantum Knowledge in Phase Space (2023)

Quantum physics through the lenses of Bayesian statistics consider probabilities to be degree of believes or knowledge and subjective. A Bayesian derivation of the probability density function in phase space is presented. The entropy proposed by Geiger and Kedem \cite{GeiKed2022a,GeiKed2022b} in phase space is expanded to define quantitatively interference and entanglement. Comparisons between each of these two quantities and the entropy are made. A brief presentation of entanglement in phase space to the spin degree of freedom and to mixed states completes the work.
An improved Rogowski coil configuration for a high speed, compact current sensor with high immunity to voltage transients (2018)

Rogowski current transducers are often used to measure transient and pulsed currents in power electronic applications. They are small, clip-around and flexible making them easy to insert in circuits with a high power density, have a wide-bandwidth, and negligible insertion impedance. Recent advances in GaN and SiC semiconductor switches mean that the next generation of Rogowski transducers need to have: Higher temperature operation. Better high frequency bandwidth, enabling measurement of of rise times of 5-20ns with good fidelity and a predictable measurement delay for power measurements. Improved rejection of common mode interference from close coupled capacitive interference due to voltage transients >20V/ns, whilst retaining high frequency capability and accuracy with conductor position in the sensor loop. Size reduction as semiconductor package sizes shrink. The aim of this paper is to examine the relative advantages of screened and unscreened Rogowski coils and to show that screened coils are capable of providing the high bandwidths and noise immunity required for semiconductor switching current measurements.
Theory and Implementation of a Simple Digital Control Strategy for Brushless DC Generators (2011)

Permanent magnet drives have frequently been used as a generator for a variety of applications. This is mainly due to their high-power density, reliability, robustness, and wide speed range. However, these systems often use expensive position sensors as well as complex controllers with high computational and memory capacity in order to control the drive at desired performance and operating range. This paper presents the concept of a simple digital control strategy for brushless dc generators. This technique is easy to implement and can be used for variety of applications including renewable energy systems, automotive systems, and flywheels. The control strategy shows satisfying performance, reliability, and robustness for both speed and voltage regulation, which are frequently used for industrial generator applications. Fundamental principles of the control technique have been presented with detailed simulation results. This scheme has been implemented and tested on a laboratory prototype generator to demonstrate feasibility and experimentally verify performance under various operating conditions.
ChemInform Abstract: A Synthetically Useful Conversion of Benzoic Acid Derivatives to 4‐Alkylphenols and 4‐Alkyl‐3‐carbalkoxyphenols. (1988)

Abstract Treatment of the cyclohexadienonecarboxylates (I) with a base results in decarboxylation and aromatization, giving the phenols (II).
Pathway index models for construction of patient‐specific risk profiles (2012)

Statistical methods for variable selection, prediction, and classification have proven extremely useful in moving personalized genomics medicine forward, in particular, leading to a number of genomic-based assays now in clinical use for predicting cancer recurrence. Although invaluable in individual cases, the information provided by these assays is limited. Most often, a patient is classified into one of very few groups (e.g., recur or not), limiting the potential for truly personalized treatment. Furthermore, although these assays provide information on which individuals are at most risk (e.g., those for which recurrence is predicted), they provide no information on the aberrant biological pathways that give rise to the increased risk. We have developed an approach to address these limitations. The approach models a time-to-event outcome as a function of known biological pathways, identifies important genomic aberrations, and provides pathway-based patient-specific assessments of risk. As we demonstrate in a study of ovarian cancer from The Cancer Genome Atlas project, the patient-specific risk profiles are powerful and efficient characterizations useful in addressing a number of questions related to identifying informative patient subtypes and predicting survival.
Telomerase Activity in Female and Male Rat Germ Cells Undergoing Meiosis and in Early Embryos1 (1997)

Telomerase is a ribonucleoprotein that synthesizes telomeric DNA at the ends of eukaryotic chromosomes. It has been hypothesized that telomerase activity is necessary for cellular immortalization and that telomerase activity is present in cells of germline origin. The objective of the present study was to determine the level of telomerase activity in the following rat cells: 1) oocytes from follicles at different stages of development, 2) spermatogenic cells, and 3) early embryos. Telomerase activity was quantitated using a recently developed, sensitive polymerase chain reaction-based assay and a human kidney cell line (293) as a standard. Telomerase activity was found in oocytes from early antral and preovulatory follicles, as well as in ovulated oocytes. The level of enzyme activity in early antral and preovulatory follicles was comparable to that of the 293 cells, while levels in ovulated oocytes were 50-fold lower. Telomerase activity was present in even lower levels in pachytene spermatocytes and round spermatids, and no telomerase activity was detected in spermatozoa from either the caput or the cauda epididymis. After fertilization, telomerase activity was present in 4-cell embryos. Telomerase activity was also detected in several rat somatic tissues. These data demonstrate that telomerase activity is present in germ cells at several stages of differentiation, with the exception of spermatozoa, and suggest that telomerase activity may be important during meiosis. The high levels of telomerase activity in individual oocytes may serve as a marker for monitoring the effects of hormonal agents, aging, and toxins on oocyte quality.
Place field detection using grid-based clustering in a large-scale computational model of the rat dentate gyrus (2016)

Place cells are neurons in the hippocampus that are sensitive to location within an environment. Simulations of a large-scale, computational model of the rat dentate gyrus using grid cell input have been performed resulting in granule cells that express multiple place fields. The typical method of detecting place fields using a global threshold on this data is unreliable as the characteristics of the place fields from a single neuron can be highly variable. A grid-based implementation of DENCLUE has been developed to calculate local thresholds to identify each place field. An adaptive binning algorithm used to smooth the rate maps was combined with the DENCLUE implementation to adaptively choose the size of the smoothing kernel and reduce the number of free parameters of the total algorithm. A sensitivity analysis was performed using the threshold parameter to demonstrate the robustness of using local thresholds as opposed to using a single global threshold in detecting the place fields resulting from the large-scale simulation. The analysis supports the use of applying local thresholds for place field detection and will be used to further investigate the role of granule cells in hippocampal function.
Sonoelectrochemistry of Cu2+ in the Presence of Cetyltrimethylammonium Bromide:  Obtaining CuBr Instead of Copper (2006)

The sonoelectrochemistry of Cu2+ ions which yields metallic copper with surfactants such as poly(N-vinyl-2-pyrrolidone) and poly(vinyl alcohol) or without any surfactant produced nanocrystalline CuBr (95 wt %) and 5% of metallic copper in the presence of cetyltrimethylammonium bromide. A sonoelectrochemical mechanism explaining the different behaviors for the various surfactants is proposed.
Alocação de Recursos na Nuvem de Dispositivos (2020)

Em uma Nuvem de Dispositivos ou Nuvem das Coisas, os recursos disponíveis na Nuvem nem sempre são capazes de atender às restrições de latência de aplicações críticas devido à grande distância entre a Nuvem e os dispositivos que originam os dados. A adoção de computação na Borda pode auxiliar a Nuvem a fornecer serviços que atendam a tais requisitos temporais. Contudo, dois fatores afetam o desempenho no nível de Borda: a heterogeneidade das aplicações e a incerteza da taxa de chegada das requisições. Neste contexto, propomos dois mecanismos: o Gerenciador de Fila, que redistribui as requisições das filas dos Nós de Borda, permitindo reduzir o tempo de espera de uma requisição; e o Alocador de Recursos, que possibilita a colaboração entre os Nós de Borda por meio de encaminhamento de requisições.
Effects due to disorder on photonic crystal-based waveguides (2003)

Using the multiple-scattering method, we have studied the effects of various types of disorders on the performance of two-dimensional photonic crystal-based waveguides with cylindrical inclusions. The following three types of disorders are considered: (a) all cylinders are disordered; (b) only those cylinders in the boundary layer of the waveguide are disordered; and (c) all cylinders except those in the boundary layer of the waveguide are disordered. Our results show that, for both the cases of position and size randomness, the quality of the waveguide is insensitive to the type-(c) disorder, but very sensitive to type-(a) and type-(b) disorder. We thus conclude that the uniformity of the microstructures in the boundary layer of the waveguide is vital in ensuring the functionality of the waveguide.
Consensus Agreement for Secure Transactions in Self Help Groups (2021)

Microfinance institutions play a prominent role in promoting entrepreneurs and small businesses for their livelihood. Self help groups are one such institution that provides small-scale financial assistance to women in rural India. Two of the emerging protocols that promise a lot of scope for microfi-nance institutions are consensus algorithms and smart contracts. This paper proposes how the consensus based agreements can improve the transparency, auditability and verifiability of the transactions in a self help group “AmritaSREE”. The current system of this self help group utilises physical ledgers to record the group transactions and loans. This can cause errors and lack of transparency in the ledger. In order to improve the functioning of this SHG, a mobile application is designed to digitize the current physical ledger-based system. In this paper, we discuss the structure and functioning of this self help group and a human centered design approach for a mobile application to assist the functioning of the SHG. We also present the design and rationale for consensus based agreements and a comparative study with smart contracts.
The Mechanical Properties of Materials as They Relate to Adhesion (2021)

No AccessAdhesion and Adhesives TechnologyMar 2021The Mechanical Properties of Materials as They Relate to AdhesionAlphonsus V. PociusAlphonsus V. PociusSearch for more papers by this authorhttps://doi.org/10.3139/9781569908501.002SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEmailLinkedIn previous chapternext chapter FiguresReferencesRelatedDetails 2021Pages: 17-46Print ISBN: 978-1-56990-855-6eISBN: 978-1-56990-850-1 Copyright & Permissions© 2021 Carl Hanser Verlag GmbH & Co. KGPDF downloadLoading ...
DNA Binding and Transcriptional Activation by the Ski Oncoprotein Mediated by Interaction with NFI (1997)

The Ski oncoprotein has been found to bind non-specifically to DNA in association with unindentified nuclear factors. In addition, Ski has been shown to activate transcription of muscle-specific and viral promoters/enhancers. The present study was undertaken to identify Ski's DNA binding and transcriptional activation partners by identifying specific DNA binding sites. We used nuclear extracts from a v-Ski-transduced mouse L-cell line and selected Ski-bound sequences from a pool of degenerate oligonucleotides with anti-Ski monoclonal antibodies. Two sequences were identified by this technique. The first (TGGC/ANNNNNT/GCCAA) is the previously identified binding site of the nuclear factor I (NFI) family of transcription factors. The second (TCCCNNGGGA) is the binding site of Olf-1/EBF. By electophoretic mobility shift assays we find that Ski is a component of one or more NFI complexes but we fail to detect Ski in Olf-1/EBF complexes. We show that Ski binds NFI proteins and activates transcription of NFI reporters, but only in the presence of NFI. We also find that homodimerization of Ski is essential for co-activation with NFI. However, the C-terminal dimerization domain of c-Ski, which is missing in v-Ski, can be substituted by the leucine zipper domain of GCN4.
Improved performances in annealed P3HT-based dye sensitized solar cells (DSSC): a detailed morphological and spectroscopic investigation (2011)

We employ femtosecond transient absorption spectroscopy and atomic force microscopy on operating hybrid solid-state DSSC with P3HT as the hole transporter, to probe the effect of annealing on charge transfer dynamics and nanoscale morphology.
Thioether-based anchimeric assistance for asymmetric coordination chemistry with ruthenium(ii) and osmium(ii) (2013)

(R)-4-(alkylthiomethyl)-5,5-dimethyl-2-(2'-hydroxyphenyl)-2-oxazolines are demonstrated to be highly suitable chiral auxiliaries for the two-step conversion of the half-sandwich complex [Ru(η(6)-C6H6)(bpy)Cl]Cl, bpy = 2,2'-bipyridine, into Δ-configured ruthenium polypyridyl complexes. The tailored thioether substituent at the oxazoline ring is essential for this conversion and not only promotes the removal of the benzene moiety but also controls the absolute metal-centered configuration. Applied to osmium, this strategy resulted in the first highly asymmetric synthesis of Δ-[Os(bpy)3](PF6)2.