gebhart/patrepeval huggingface dataset:
An optical fiber Bragg grating force sensor for monitoring sub-bandage pressure during compression therapy (2013)

Graduated compression bandaging of the lower limbs is the primary therapy for venous leg ulcers with its efficacy believed to be predominantly dependent on the amount and the distribution of the compressive pressure applied. There has been on-going demand for an ideal sensor to facilitate in-vivo monitoring of the sub-bandage pressure. Several methods and devices have been reported but each has its limitations, such as bulkiness, low tolerance to movement, susceptible to thermal noise and single point sensing. An optical fiber force sensor is demonstrated, consisting of two arrays of fiber Bragg grating (FBG) entwined in a double helix form and packaged with contact-force sensitivity. This sensor array has inherent temperature immunity and is capable of real-time, distributed sensing of sub-bandage pressure. The calibration results of the sensor array, as well as the validation human trial results, are presented.
New modal wave-front sensor: a theoretical analysis (2000)

We present a new design of a modal wave-front sensor capable of measuring directly the Zernike components of an aberrated wave front. The sensor shows good linearity for small aberration amplitudes and is particularly suitable for integration in a closed-loop adaptive system. We introduce a sensitivity matrix and show that it is sparse, and we derive conditions specifying which elements are necessarily zero. The sensor may be temporally or spatially multiplexed, the former using a reconfigurable optical element, the latter using a numerically optimized binary optical element. Different optimization schemes are discussed, and their performance is compared.
A master regulator for biofilm formation by <i>Bacillus subtilis</i> (2004)

Wild strains of Bacillus subtilis are capable of forming architecturally complex communities of cells known as biofilms. Critical to biofilm formation is the eps operon, which is believed to be responsible for the biosynthesis of an exopolysaccharide that binds chains of cells together in bundles. We report that transcription of eps is under the negative regulation of SinR, a repressor that was found to bind to multiple sites in the regulatory region of the operon. Mutations in sinR bypassed the requirement in biofilm formation of two genes of unknown function, ylbF and ymcA, and sinI, which is known to encode an antagonist of SinR. We propose that these genes are members of a pathway that is responsible for counteracting SinR-mediated repression. We further propose that SinR is a master regulator that governs the transition between a planktonic state in which the bacteria swim as single cells in liquid or swarm in small groups over surfaces, and a sessile state in which the bacteria adhere to each other to form bundled chains and assemble into multicellular communities.
Nanochromatography Driven by the Coffee Ring Effect (2011)

The coffee ring phenomenon has long been known for its ability to concentrate particles at the rim of a dried liquid droplet, yet little is known about its particle separation capability. Here, we elucidate the physics of particle separation during coffee ring formation, which is based on a particle-size selection mechanism near the contact line of an evaporating droplet. On the basis of this mechanism, we demonstrate nanochromatography of three relevant biological entities (proteins, micro-organisms, and mammalian cells) in a liquid droplet, with a separation resolution on the order of ∼100 nm and a dynamic range from ∼10 nm to a few tens of micrometers. These findings have direct implications for developing low-cost technologies for disease diagnostics in resource-poor environments.
A Portable Projector Extended for Object-Centered Real-Time Interactions (2009)

With the recent growth in projection technologies, interactive applications using portable projectors have received attention from research communities. However, almost all applications are limited to controller-centered interactions and few pay attention to the existence of other objects found in an environment. In this paper, we propose an object-centered interactive system using a single self-contained device. Physical objects are integrated into the system so virtual objects projected by a projector can respond to them in a realistic manner. The device consists of a portable projector, a FireWire camera, a motion sensor and a VGA splitter. A computational framework for the system is presented in the paper. We focus on the three fundamental requirements of the system and their solution. First, a projector and a camera were geometrically calibrated in real time using a motion sensor. Physical objects were then identified and tracked using particle filters. Finally, virtual information was projected using a nonintrusive projection technique. Two basic programs were implemented as proofs of concept, and experiments were conducted to evaluate the accuracy and speed of the proposed system.
El río morisco (2015)

espanolEl problema principal, por no decir el unico, que se plantea en este libro es el de la convivencia entre grupos de diferentes culturas. El autor expresa lo que le separa de Villanueva, de Juan Goytisolo y de la postura de Francisco Marquez, investigadores que comparten su punto de vista. Con todo el respeto hacia su inmensa obra y hacia su pensamiento generoso, Bernard Vincent afirma que el voluntarismo de estos autores falta a la realidad. Quieren pensar que la medida de la expulsion de los moriscos de Espana en 1609 estaba en total contradiccion con los deseos de la sociedad de la epoca, tanto cristiana vieja como morisca, lo que les lleva a la tesis poco convincente de un diktat de una minoria de individuos, encabezados por el duque de Lerma. catalaEl problema principal, per no dir l'unic, que es planteja en aquest llibre es el de la convivencia entre grups de diferents cultures. L'autor expressa el que el separa de Villanueva, de Juan Goytisolo i de la postura de Francisco Marquez, investigadors que comparteixen el seu punt de vista. Amb tot el respecte cap a la seva immensa obra i cap al seu pensament generos, Bernard Vincent afirma que el voluntarisme d'aquests autors manca a la realitat. Volen pensar que la mesura de l'expulsio dels moriscs d'Espanya en 1609 estava en total contradiccio amb els desigs de la societat de l'epoca, tant cristiana vella com morisca, cosa que els duu a la tesi poc convincent d'un diktat d'una minoria d'individus, encapcalats pel duc de Lerma.
Development in Aspergillus (2013)

The genus Aspergillus represents a diverse group of fungi that are among the most abundant fungi in the world. Germination of a spore can lead to a vegetative mycelium that colonizes a substrate. The hyphae within the mycelium are highly heterogeneous with respect to gene expression, growth, and secretion. Aspergilli can reproduce both asexually and sexually. To this end, conidiophores and ascocarps are produced that form conidia and ascospores, respectively. This review describes the molecular mechanisms underlying growth and development of Aspergillus.
Protocol-Aware Recovery for Consensus-Based Storage. (2018)

We introduce protocol-aware recovery (PAR), a new approach that exploits protocol-specific knowledge to correctly recover from storage faults in distributed systems. We demonstrate the efficacy of PAR through the design and implementation of corruption-tolerant replication (CTRL), a PAR mechanism specific to replicated state machine (RSM) systems. We experimentally show that the CTRL versions of two systems, LogCabin and ZooKeeper, safely recover from storage faults and provide high availability, while the unmodified versions can lose data or become unavailable. We also show that the CTRL versions have little performance overhead.
1.3-$\mu$m AlGaInAs Multiple-Quantum-Well Semi-insulating Buried-Heterostructure Distributed-Feedback Lasers for High-Speed Direct Modulation (2009)

This paper describes 1.3-mum AlGaInAs multiple-quantum-well semi-insulating buried-heterostructure distributed-feedback lasers for high-speed direct modulation. Combination of large differential gain AlGaInAs quantum wells and semi-insulating buried-heterostructure for reduction of active region achieved 25 and 40 Gb/s direct modulation with the device having the cavity length of 150 mum. The device whose Bragg wavelength is longer than gain peak wavelength showed 25 Gb/s direct modulation characteristics with superior temperature characteristics. The relaxation oscillation frequency of this device was 15 GHz and higher up to 70degC. Clear eye-opening was observed and single-mode fiber transmission experiments showed low power penalty up to 70degC. With the device of negative detuning with larger differential gain, we achieved 40 Gb/s direct modulation. This device showed high relaxation oscillation frequency and slope of 20.5 GHz and 3.2 GHz/mA <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/2</sup> , respectively. The 40 Gb/s eye opened clearly at 25degC and eye-opening was observed up to 50degC.
Relationship between lung volume and tracheal area as assessed by acoustic reflection (1988)

To determine whether airway size correlates with measures of lung or body size, we used the acoustic reflection technique to calculate tracheal cross-sectional area in 103 healthy young adults. Men have significantly larger tracheas than women [2.48 +/- 0.08 vs. 1.91 +/- 0.05 (SE) cm2, P less than 0.001]. Within each sex, there is no correlation between tracheal size and body size or maximal expiratory flows. There is a significant positive correlation between tracheal area and vital capacity in males only (r = 0.36, P less than 0.01). These results support the concept of dysanapsis, relatively independent growth of the airways and lung parenchyma, as well as sex-related differences in airway size and growth. Inherent airway size may be a factor in the development and/or progression of lung disease.
The Role of PLA2R Antibody in Treatment of Membranous Nephropathy (2017)

International audience
Development and Test of an AUV for Environmental Monitoring and Asset Integrity in Offshore O&G Scenarios: CLEAN SEA Project (2014)

Abstract The use of Autonomous Underwater Vehicles (AUV) is an emerging technology in many fields of marine activity (military, scientific, industrial), offering a significant potential in cost savings and extension of the operational capabilities related to the solutions currently adopted in offshore operations. Commercially available AUVs are mainly used by the oil & gas industry for the execution of seabed surveys and they are not routinely applied for carrying out the environmental monitoring and asset integrity around oil&gas offshore infrastructures. Eni e&p and its subsidiary Eni Norge, in cooperation with Tecnomare, have launched the CLEAN SEA project (Continuous Long-term Environmental and Asset iNtegrity monitoring at SEA) with the objective to use a commercially available AUV, properly upgraded with key enabling technologies, for the execution of environmental monitoring and asset integrity in offshore fields where eni operates. This paper will address how to reach this goal. A custom designed mission payload, arranged as modular and interchangeable pods, has been installed at the AUV. These modules, characterised by a set of sensors, are built to perform different offshore monitoring activities according to specific needs: automatic water samples collection; visual inspection (asset, seabed) and hydrocarbon leakage detection; automatic chemical analyses of trace pollutants and acoustic survey of seabed and pipelines / flowlines. This paper will in addition illustrate the possible future extension of the AUV operational capabilities through the integration and field demonstration of key technologies such as underwater docking, wireless underwater communication for mission data downloading and wireless power recharge for increased autonomy. This may enable a "permanent" operation subsea independently of support from surface. A comprehensive technical overview of the concept will be presented as well as the results of the demonstration tests.
High Reliability and High Performance Parallel-Connected UPS System with Independent Control (2005)

This paper presents an independent control for multiple parallel-connected uninterruptible power supplies (UPSs) system, in which it only requires current sensors. With the calculation of the active and reactive currents, the controllers provide suitable values of the phase angle and amplitude variation of the output voltage reference signal to meet the load demand. A consistent choice of the control parameters results in a stable controller with higher performance, and consequently, higher reliability. Experimental results using three UPSs connected in parallel with different output power ratings feeding a rectifier load exhibit stability and good sharing of active and reactive current components
Calendering of Silicon-Containing Electrodes and Their Influence on the Mechanical and Electrochemical Properties (2022)

The process chain of electrode production includes calendering as a crucial process step to enhance the volumetric energy density as well as to influence the particle-pore-structure and simultaneously the mechanical and electrochemical properties of the electrode coating. A further way to improve the volumetric energy density is the usage of other materials with higher specific capacity, such as silicon instead of graphite as the active material for anodes. In this study, both opportunities, calendering and using silicon-containing composites, are combined to investigate the relations between material, process and performance. The applied line loads for the compaction are correlated with the silicon mass fraction and lead to a silicon-dependent mathematical model to estimate further line loads for silicon-graphite-composite electrodes. On the basis of established analyzing methods for adhesion strength and deformation behavior, it is shown that with increasing silicon content, the elastic deformation of the electrode coating rises. In addition, the overall porosity of the electrodes is less affected by silicon than the pore size distribution compared to graphite electrodes. Furthermore, the electrical conductivity decreases at higher silicon contents independent of coating density. Moreover, the long-term electrochemical stability deteriorates with increasing silicon content and coating density.
Helix-coil stability constants for the naturally occurring amino acids in water. 22. Histidine parameters from random poly[(hydroxybutyl)glutamine-co-L-histidine] (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHelix-coil stability constants for the naturally occurring amino acids in water. 22. Histidine parameters from random poly[(hydroxybutyl)glutamine-co-L-histidine]M. Sueki, S. Lee, S. P. Powers, J. B. Denton, Y. Konishi, and H. A. ScheragaCite this: Macromolecules 1984, 17, 2, 148–155Publication Date (Print):February 1, 1984Publication History Published online1 May 2002Published inissue 1 February 1984https://pubs.acs.org/doi/10.1021/ma00132a006https://doi.org/10.1021/ma00132a006research-articleACS PublicationsRequest reuse permissionsArticle Views309Altmetric-Citations129LEARN 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
Fast Approximate k NN Graph Construction for High Dimensional Data via Recursive Lanczos Bisection (2009)

Nearest neighbor graphs are widely used in data mining and machine learning. A brute-force method to compute the exact kNN graph takes Θ(dn2) time for n data points in the d dimensional Euclidean space. We propose two divide and conquer methods for computing an approximate kNN graph in Θ(dnt) time for high dimensional data (large d). The exponent t ∈ (1,2) is an increasing function of an internal parameter α which governs the size of the common region in the divide step. Experiments show that a high quality graph can usually be obtained with small overlaps, that is, for small values of t. A few of the practical details of the algorithms are as follows. First, the divide step uses an inexpensive Lanczos procedure to perform recursive spectral bisection. After each conquer step, an additional refinement step is performed to improve the accuracy of the graph. Finally, a hash table is used to avoid repeating distance calculations during the divide and conquer process. The combination of these techniques is shown to yield quite effective algorithms for building kNN graphs.
ReQueSS: relational querying of semi-structured data (2002)

We present a prototype of a Web querying interface which is capable of searching and querying unified Web sources of data that have sufficient hidden relational structure. The system converts query-related parts of Web pages into relational data and provides for SQL-like or QBE-like querying capability. The relational query is parsed for relevant information such as selection conditions and table names. This information is then used in conjunction with a knowledge base containing the network locations of HTML documents at the unified Web source to retrieve only the relevant documents for conversion to relational form. The system is being developed using Oracle 8.0 and Oracle Application Server 4.0 (JWeb Cartridge).
Impact of data transformations on memory bank locality (2004)

High-energy consumption presents a problem for sustainable clock frequency and deliverable performance. In particular, memory energy consumption of array-intensive applications can be overwhelming due to poor cache locality. One option for reducing memory energy is to adopt a banked memory architecture, where memory space is divided into banks and each bank can be powered down if it is not in active use. An important issue here is the bank access pattern, which determines opportunities for saving energy. In this paper, we present a compiler-based data layout transformation strategy for increasing the effectiveness of a banked memory architecture. The idea is to transform the array layouts in memory in such a way that two loop iterations executed one after another access the data in the same bank as much as possible; the remaining banks can be placed into a low-power mode. Our simulation-based experiments with nine array-intensive applications show significant savings in memory energy consumption.
Manipulating Latex Polymer Microstructure Using Chain Transfer Agent and Cross‐Linker to Modify PSA Performance and Viscoelasticit<b>y</b> (2011)

Abstract Two series of butyl acrylate (BA)/acrylic acid (AA)/2‐hydroxy ethyl methacrylate latexes were produced via starved seeded semi‐batch emulsion polymerization. The first series, five latexes with gel contents ranging from 0 to 75 wt.‐%, were generated by varying the amount of chain transfer agent (CTA, n ‐dodecyl mercaptan) in the absence of cross‐linker. The second series, two latexes with gel contents of 49 and 74 wt.‐%, were obtained by manipulating the amount of CTA in the presence of a constant cross‐linker (allyl methacrylate) concentration. Latexes with similar gel contents, one from each series, were compared with respect to their microstructure, viscoelastic properties and pressure‐sensitive adhesive performance. At similar gel contents, latexes obtained in the absence of cross‐linker had larger sol polymer molecular weight ( $\overline {M} _{{\rm w}} $ ) and molecular weight between cross‐linking points ( M c ), compared to the latexes generated using both CTA and cross‐linker. The different microstructures of latexes with similar gel contents resulted in significantly different viscoelastic properties and shear strength of the pressure‐sensitive adhesive films cast from the latexes. magnified image
Protein Adsorption on the Surface of a Thin-Film Polymer Integrated Optical Waveguide (1988)

Protein adsorption (fluorescein labeled gamma globulin, FITC-IgG) on the surface of poly(styrene) thin-film optical waveguides was fluorescently detected. The time course of adsorption, the FITC-IgG fluorescence spectra, and the surface concentration estimates are presented. The results demonstrate the potential use of polymer optical waveguides as integrated optic evanescent sensors.
Cardiac progenitor cells application in cardiovascular disease (2017)

Stem cells (SCs) have special potency to differentiate into different types of cells, especially cardiomyocytes. In order to demonstrate the therapeutic applications of these cells, various investigations are recently being developed. Cardiac progenitor cells are endogenous cardiac SCs that found to express tyrosine kinase receptors, c-Kit and other stemness features in adult heart, contributing to the regeneration of cardiac tissue after injury. This lineage is able to efficiently trans-differentiate into different cell types such as cardiomyocytes, endothelial cells, and smooth muscle cells. Noticeably, several cardiac progenitor cells have been identified until yet. The therapeutic applications of cardiac SCs have been studied previously, which could introduce a novel therapeutic approach in the treatment of cardiac disorders. The current review enlightens the potency of cardiac progenitor cells features and differentiation capacity, with current applications in cardiovascular field.
Reduced selective encryption of intra and inter frames of H.264/AVC using psychovisual metrics (2012)

In the field of video protection, selective encryption (SE) is a scheme which ensures a visual security of video by encrypting a small part of data. This paper presents a new SE algorithm for H.264/AVC in CAVLC mode. This algorithm controls the amount of encrypted alternative coefficients (AC) of the integer transform in the entropic encoder. Two visual quality measures, the peak signal-to-noise ratio (PSNR) and the structural similarity (SSIM), are used to measure the visual confidentiality level of each video frame and to regulate the amount of encrypted alternatives coefficients. This method can be applied on intra and inter frame video sequences.