gebhart/patrepeval huggingface dataset:
Autoconfiguration for faster WiFi community networks (2015)

Commercial community wireless networks usually rely on wireless donors to give away Internet access while at home in exchange for access while they are mobile. The donors who make up the network get nothing immediate in return for providing Internet access. In this paper, we explore automatic configuration for a model of community networks in which donors mesh with each other and can aggregate Internet access from their peers with their own. To make the speed gains from access aggregation work for normal internet users, we use Multi-Path TCP (RFC 6824), proxying TCP traffic to MPTCP as needed. We examine the association, addressing, discovery, and routing challenges involved with self-configuring faster community networks, presenting IPv4 and IPv6 solutions to them.
Genetic analysis of <i>Salmonella enteritidis</i> biofilm formation: critical role of cellulose (2002)

We report here a new screening method based on the fluorescence of colonies on calcofluor agar plates to identify transposon insertion mutants of Salmonella enteritidis that are defective in biofilm development. The results not only confirmed the requirement of genes already described for the modulation of multicellular behaviour in Salmonella typhimurium and other species, but also revealed new aspects of the biofilm formation process, such as two new genetic elements, named as bcsABZC and bcsEFG operons, required for the synthesis of an exopolysaccharide, digestible with cellulase. Non-polar mutations of bcsC and bcsE genes and complementation experiments demonstrated that both operons are responsible for cellulose biosynthesis in both S. enteritidis and S. typhimurium. Using two different growth media, ATM and LB, we showed that the biofilm produced by S. enteritidis is made of different constituents, suggesting that biofilm composition and regulation depends on environmental conditions. Bacterial adherence and invasion assays of eukaryotic cells and in vivo virulence studies of cellulose-deficient mutants indicated that, at least under our experimental conditions, the production of cellulose is not involved in the virulence of S. enteritidis. However, cellulose-deficient mutants were more sensitive to chlorine treatments, suggesting that cellulose production and biofilm formation may be an important factor for the survival of S. enteritidis on surface environments.
Disruption of Fumarylacetoacetate Hydrolase Causes Spontaneous Cell Death under Short-Day Conditions in Arabidopsis (2013)

Fumarylacetoacetate hydrolase (FAH) hydrolyzes fumarylacetoacetate to fumarate and acetoacetate, the final step in the tyrosine (Tyr) degradation pathway that is essential to animals. Deficiency of FAH in animals results in an inborn lethal disorder. However, the role for the Tyr degradation pathway in plants remains to be elucidated. In this study, we isolated an Arabidopsis (Arabidopsis thaliana) short-day sensitive cell death1 (sscd1) mutant that displays a spontaneous cell death phenotype under short-day conditions. The SSCD1 gene was cloned via a map-based cloning approach and found to encode an Arabidopsis putative FAH. The spontaneous cell death phenotype of the sscd1 mutant was completely eliminated by further knockout of the gene encoding the putative homogentisate dioxygenase, which catalyzes homogentisate into maleylacetoacetate (the antepenultimate step) in the Tyr degradation pathway. Furthermore, treatment of Arabidopsis wild-type seedlings with succinylacetone, an abnormal metabolite caused by loss of FAH in the Tyr degradation pathway, mimicked the sscd1 cell death phenotype. These results demonstrate that disruption of FAH leads to cell death in Arabidopsis and suggest that the Tyr degradation pathway is essential for plant survival under short-day conditions.
Chronic hepatitis delta: A state-of-the-art review and new therapies (2019)

Chronic delta hepatitis is the most severe form of viral hepatitis affecting nearly 65 million people worldwide. Individuals with this devastating illness are at higher risk for developing cirrhosis and hepatocellular carcinoma. Delta virus is a defective RNA virus that requires hepatitis B surface antigen for propagation in humans. Infection can occur in the form of a co-infection with hepatitis B, which can be self-limiting, <i>vs</i> superinfection in a patient with established hepatitis B infection, which often leads to chronicity in majority of cases. Current noninvasive tools to assess for advanced liver disease have limited utility in delta hepatitis. Guidelines recommend treatment with pegylated interferon, but this is limited to patients with compensated disease and is efficacious in about 30% of those treated. Due to limited treatment options, novel agents are being investigated and include entry, assembly and export inhibitors of viral particles in addition to stimulators of the host immune response. Future clinical trials should take into consideration the interaction of hepatitis B and hepatitis D as suppression of one virus can lead to the activation of the other. Also, surrogate markers of treatment efficacy have been proposed.
Microdiffusion Method for Estimation of Cyanide in Whole Blood and Its Application to the Study of Conversion of Cyanide to Thiocyanate (1973)

Abstract A microdiffusion technique has been used to separate and concentrate the nanomole amounts of cyanide in whole blood, and to permit its simplified colorimetric estimation (1). With this technique cyanide was measured in whole blood from normal smokers, normal nonsmokers, and patients suffering from tobacco amblyopia. Cyanide was also measured in whole blood from vitamin B12-deficient and normally fed Wistar rats. From the experimental animal results and results from patients, it is suggested that a more suitable index of cyanide exposure may be the alteration of plasma thiocyanate rather than the direct determination of whole blood cyanide.
Six-Step Synthesis of (<i>S</i>)-Brevicolline from (<i>S</i>)-Nicotine (2006)

[reaction: see text] A six-step synthesis of (S)-brevicolline from (S)-nicotine is reported. Regioselective trisubstitution of the pyridine ring of nicotine, followed by successive Suzuki cross-coupling and Buchwald amination reactions, afforded the enantiopure beta-carboline alkaloid, brevicolline.
Substrate Integrated Waveguides (SIWs) in a Flexible Printed Circuit Board for Millimeter-Wave Applications (2008)

Substrate integrated waveguides (SIWs) are presented and demonstrated in a flexible printed circuit board (flex PCB) for application in the 77-81 GHz range. The vertical walls of the SIWs presented in this paper consist of multiple electrodeposited metallic wires. The diameters of these wires and the spacing between them are on the order of hundreds of nanometers. Hence, the walls can be seen as continuous metallic walls, and the leakage losses through them become negligible. In turn, the SIWs presented in this paper can operate at higher frequencies compared with previously presented structures that are realized with PCB fabrication processes. The attenuation of the SIWs is comparable to that of microstrip lines on the same sample. The SIWs are successfully demonstrated in a SIW-based slot antenna. The antenna gain along the <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">z</i> -axis (normal-to-plane) was found to be around 2.8 dBi at 78 GHz which is in agreement with the simulated values. [2008-0047]
Utilization of the venturi effect to introduce micro-particles for epidermal vaccination (2006)

Skin represents a potent immunological induction site, with a dense network of special antigen-presenting cells (APCs) in the epidermal layer. DNA vaccination targeting APCs offers a promising new therapeutic intervention for a wide range of diseases. A unique biomedical device, the venturi powdered injection system (venturi), is proposed for the epidermal delivery of DNA vaccines. The novelty of this hand-held venturi device is in using the venturi effect to entrain DNA-coated micro-particles into an established quasi-steady transonic helium flow and accelerate them to an appropriate momentum for penetrating the skin or mucosal tissue to achieve an immunological effect. In this paper, computational fluid dynamics (CFD) has been employed to scrutinize an experimental venturi device. Key features of gas dynamics and gas-particle interactions have been presented. A parallel extension was added to improve the uniformity of gas and particle flow for a better particle penetration distribution. The overall capability of the venturi biolistic configuration for delivering micro-particles has been explored and discussed. Statistical analysis has shown that the modelled micro-particles have achieved a mean velocity of 654m/s for intracellular DNA vaccine delivery applications.
Use of a potential rabbit model for structure-behavioral activity studies of cannabinoids (1982)

Using the genetically unique tetrahydrocannabinol-seizure susceptible (THC-SS) rabbit, the behavioral effect of 14 cannabinoids or related structures were determined and compared to the effects of 11 previously tested cannabinoids. Relative potencies of the cannabinoid-induced convulsions in THC-SS rabbits were generally comparable to reported relative potencies of cannabinoid-produced psychoactivity in humans and other behavioral activity in monkeys or other species. These data suggest that the THC-SS rabbit may represent an experimentally convenient and reliable animal model for studies of structure--psychoactivity relationships of marijuana-like compounds.
Autonomous face recognition (2005)

Most state-of-the-art machine learning systems are based on the supervised learning theory, which require separate pre-training procedure for enrolling every new face and updating existing faces. Therefore, an additional human supervisor is normally required. Users cooperation is expected as well during the training phase. However, a human vision system is far more intelligent. It has no difficulty to automatically memorize the faces they have interacted with for future recognition. All the enrollments, updates, and comparisons have been done completely in the brain without any outside assistance. Although the biological reasons behind it are not clear until now, it is not hard to imagine that the brains can combine all information that is useful for recognition, including image processing, video context, logic deduction, experiences etc. Inspired from the human vision system, we combined the conventional learning algorithms and image processing algorithms with predefined rules to increase the intelligence of machine recognition systems. As the first step, face detection is implemented by an industrial image-based face detector combined with novel temporal differencing algorithms. The face detection result, an industrial image-based classifier, temporal filtering and video context related rules are all combined for face recognition. The database can be constructed online and be adapted automatically according to the update rules. State machine is introduced to keep the system running automatically and stably. The major feature of the system is self-learning. No separate or pre-training is required. It can start with an empty database and get to know the faces of the people showing up in an unsupervised way. When known people enter again, the system can recognize them and adaptively update the corresponding databases to keep up with recent views. The proposed system can find promising applications in many fields especially for consumer electronics.
3D compression made simple: Edgebreaker with ZipandWrap on a corner-table (2002)

Edgebreaker is a simple technique for compressing three-dimensional triangle meshes. We introduce here a new formulation of Edgebreaker, which leads to a very simple implementation. We describe it in terms of a simple data structure, which we call the Corner Table. It represents the connectivity of any manifold mesh as two tables, V and O, such that for a corner c, which is the association of a triangle with a vertex, V[c] is an integer reference to the vertex of c and O[c] is an integer reference to the opposite corner. For meshes that are homeomorphic to a sphere, Edgebreaker encodes these two tables with less than 2 bits per triangle. It compresses vertex locations using Touma and Gottsman's parallelogram predictor. We also present a new decompression, inspired by the Wrap&Zip decompression technique developed in collaboration with Andrzej Szymczak. We call it Zip&Wrap, because it works in the inverse direction from Wrap&Zip and zips cracks in the reconstructed mesh sooner. The detailed source code for the compression and the decompression algorithms fits on a single page. A further improvement of the codebook of Edgebreaker, developed with D. King, guarantees no more than 1.73 bits per triangle for the connectivity. Entropy encoding reduces this cost in practice to less than a bit per triangle when the mesh is large. Through minor modifications, the Edgebreaker algorithm has been adapted to manifold meshes with holes and handles, to non-triangle meshes, and to non-manifold meshes. A Corner-Table implementation of these is described elsewhere.
Therapy of Pemphigus Vulgaris (1999)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA Dermatology HomeNew OnlineCurrent IssueFor Authors Podcast Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA Dermatology journal
Incremental Forming of Flanged Sheet Metal Components Without Dedicated Dies (1992)

This paper describes research that has investigated a process for forming flanged sheet metal parts without dedicated tooling by repeated localized deformation—an incremental process. The complete formation of a shrink flange over a former by a grooved roller, moving around the flange in a series of passes, is analysed by the finite element method and reasonable agreement with experimental results shown. Some evidence is presented that the use of a grooved roller can extend the forming limits of a conventional single die pressing operation. The predicted reaction distribution at the fixed edge of a variety of flanges during their incremental formation by different rollers is then examined. It is shown that the most significant reactions are limited to the vicinity of the current position of the roller. This result leads to a proposal that the form tool might be replaced by non-dedicated tooling, to support the component web only in the region near to the roller. This proposal is tested experimentally and the principle of a dieless flange-forming process is successfully demonstrated. Such a process may be of benefit to any industry that produces a variety of flanged parts in small batches, for example airframe manufacture. Further research is proposed to develop a prototype machine based on the principle outlined here.
<title>High-speed real-time data classification and cell sorting using discriminant functions and probabilities of misclassification for stem cell enrichment and tumor purging</title> (1998)

Data analysis and cell sorting are both fundamentally the same except in terms of the time available to make classification decisions. In the case of cell sorting the cell classification decisions must be made in real-time (in the case of cell sorting, real-time means in about 625 microseconds on this system). This dictates an approach to classification which can be implemented at memory speeds or in pre-programmed hardware. We have been developing new high-speed lookup table transformation methods, suitable for real-time data classification or cell sorting based on statistical classifiers. Multiparameter data mixtures of human MCF-7 breast cancer cells and human bone marrow were analyzed by discriminant function analysis. Cell identification tags, implemented as additional correlated listmode parameters not used for these analyses, were used to uniquely identify each cell type and to compare classifier results. The performance of classifier systems was also assessed using ROC ('receiver operating characteristics') analysis. The effectiveness of the classification system for cell sorting can be evaluated using molecular characterizations of sorted cells, either in small numbers or at single-cell level.
Reliability issues of Pb-free solder joints in electronic packaging technology (2003)

At present, the electronic packaging industry is actively searching for Pb-free solders due to environmental concerns surrounding the Pb-containing solders. Due to the lack of reliability data, some electronics companies are reluctant to adopt Pb-free solders into their products. Hence, a review of the reliability issues of Pb-free solders is timely. We have selected three topics to be reviewed here. They are interfacial reaction between Pb-free solder and thin film under-bump metallization, electromigration in Pb-free flip chip solder joints, and Sn whisker growth on the Pb-free finish on a Cu leadframe.
New <i>Monascus</i> Metabolites with a Pyridine Structure in Red Fermented Rice (2003)

Monascus purpureus produces several hitherto unknown compounds in addition to pigments and the mycotoxin citrinin. In red fermented rice (angkak, red koji) obtained as cultures of M. purpureus DSM1379 and DSM1603, we detected two compounds with identical UV absorption spectra and maxima at 306-307 nm. They were isolated by HPLC, and their structures were elucidated by intensive MS and NMR studies. Monascopyridine A (3) contains a gamma-lactone, propenyl group, hexanoyl side chain, and a pyridine ring, whereas the more lipophilic compound, monascopyridine B, is a higher homologue of monascopyridine A with the more lipophilic octanoyl instead of the hexanoyl side chain. This is the first report of Monascus metabolites with a pyridine ring.
A Synchronous All-optical 160 Gb/s Photonic Interconnection Network (2007)

A modular photonic interconnection network based on a combination of basic 2 x 2 all-optical nodes is presented. The proposed architecture is synchronous, can operate up to 160 Gb/s and exhibits self-routing capability and very low switching latency.
A hierarchical file system interface to datyabase-based content management application (2006)

When considering the usability of computer applications one, of the most important factors is the interface they provide for data manipulation. Historically, though each application has defined it's own user interface, some types of interfaces have emerged as most applicable for certain types of data. Over time, some applications (or types of applications) have gained enough popularity that they became ubiquitous and well-known to most computer users to the extent that users consider them the norm, and as such, optimal for their daily tasks. In this paper we present an idea and implemented method of exposing data from a Web content management system in the form of hierarchical file system, manageable and editable by usual file management and office application tools
Data sharing between web applications based on the request of user (2009)

By analyzing the characteristics of data sharing between Web applications and the limitations in existing data sharing methods, a new solution for data sharing between Web applications is presented. This data sharing solution transfer data between Web applications directly and provides a much better data sharing experience for the users. We explained this new solution in details from three key aspects which are how to transfer data, how to improve user experience and how to build a unified data model and a prototype Web application is implemented to verify the proposed solution.
ChemInform Abstract: Reactions of α‐Bromo Esters with Zinc and Acyl Chlorides in the Presence of Dioxane. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration (2020)

Assessment of respiratory function allows early detection of potential disorders in the respiratory system and provides useful information for medical management. There is a wide range of applications for breathing assessment, from measurement systems in a clinical environment to applications involving athletes. Many studies on pulmonary function testing systems and breath monitoring have been conducted over the past few decades, and their results have the potential to broadly impact clinical practice. However, most of these works require physical contact with the patient to produce accurate and reliable measures of the respiratory function. There is still a significant shortcoming of non-contact measuring systems in their ability to fit into the clinical environment. The purpose of this paper is to provide a review of the current advances and systems in respiratory function assessment, particularly camera-based systems. A classification of the applicable research works is presented according to their techniques and recorded/quantified respiration parameters. In addition, the current solutions are discussed with regards to their direct applicability in different settings, such as clinical or home settings, highlighting their specific strengths and limitations in the different environments.
Self-Organization into 2D and 3D Superlattices of Nanosized Particles Differing by Their Size (1997)

Self-assembly of silver sulfide, Ag2S, nanoparticles is reported for different particles sizes. Monolayers of particles organized in a hexagonal network are formed over very large domains. Small or large aggregates can also be produced. The observations indicate that the formation of self-assemblies of nanoparticles strongly depends on the preparation conditions of the samples. It is also shown that in the aggregates the particles are highly organized and form pseudocrystals with a face-centered cubic structure for various particles sizes.