gebhart/patrepeval huggingface dataset:
An efficient architecture and algorithm to prevent data leakage in Cloud Computing using multi-tier security approach (2016)

Cloud Computing is arising on-demand, ubiquitous internet based technology, which provides variety of services. Cloud computing offers various services like software, hardware, data storage, platform, infrastructure etc. major weakness with data security over cloud is that, the but of physical security control is not viable. Appropriately, strong approach control and authentication becomes extremely vital for providing valuable security. Number of protection and privacy issues rise be-coming to the outsourcing of infrastructure, delicate records and critical application and its multitenancy environment. In this research paper, we are proposing authentication technique and multifactor user authentication for prevent illegal access over cloud. As our proposed technique using three tier of authentication check, authentication image check and authentication codes. To provide further security on client side, we are using a special keyboard and on the server side authentication code is store in encrypted form on master server at different tiers. Our proposed technique is quite more secure.
Impact of prebiotics and probiotics on skin health (2014)

This review discusses the role of pre- and probiotics with respect to improving skin health by modulating the cutaneous microbiota. The skin ecosystem is a complex environment covered with a diverse microbiota community. These are classified as either transient or resident, where some are considered as beneficial, some essentially neutral and others pathogenic or at least have the capacity to be pathogenic. Colonisation varies between different parts of the body due to different environmental factors. Pre- and probiotic beneficial effects can be delivered topically or systemically (by ingestion). The pre- and probiotics have the capacity to optimise, maintain and restore the microbiota of the skin in different ways. Topical applications of probiotic bacteria have a direct effect at the site of application by enhancing the skin natural defence barriers. Probiotics as well as resident bacteria can produce antimicrobial peptides that benefit cutaneous immune responses and eliminate pathogens. In cosmetic formulations, prebiotics can be applied to the skin microbiota directly and increase selectively the activity and growth of beneficial 'normal' skin microbiota. Little is known about the efficacy of topically applied prebiotics. Nutritional products containing prebiotics and/or probiotics have a positive effect on skin by modulating the immune system and by providing therapeutic benefits for atopic diseases. This review underlines the potential use of pre- and probiotics for skin health.
Targeting liver tumors with hyperthermia: Ferromagnetic embolization in a rabbit liver tumor model (2001)

Hepatic arterial infusion of lipiodol containing ferromagnetic particles can result in excellent targeting of liver tumors with hyperthermia on the subsequent application of an external alternating magnetic field. The promising results of this study warrant further investigation of FEH as a potential treatment for advanced liver cancer.
Semi-Supervised Classification of Hyperspectral Data Based on Generative Adversarial Networks and Neighborhood Majority Voting (2018)

How to classify hyperspectral images using few training samples is an important and challenging problem because the collection of the samples is difficult and expensive. Because semi-supervised approaches can utilize information contained in the unlabeled samples and labeled samples, it is a suitable choice. A novel semi-supervised spectral-spatial classification method for hyperspectral data based on generative adversarial network (GAN) is proposed in this paper. First, we use a custom one-dimensional GAN to train the hyperspectral data to obtain spectral features. After using a new small convolutional neural network (CNN) to classify the spectral features, we use a new classification method based on a majority voting strategy further to improve the classification result. The performance of our method is evaluated on ROSIS image data, and the results show that the proposed method can acquire satisfactory results when compared with traditional methods using a few of labeled samples.
TRANSIENT ANALYSIS OF MICROSTRIP â LIKE INTERCONNECTIONS GUARDED BY GROUND TRACKS (2008)

Guarded ground tracks are extensively used in high density routing for mitigation of crosstalk. However, these ground tracks can influence the electrical properties of the interconnect line also. We present a novel analytical model for extraction of line parameters of high-speed interconnect lines guarded by ground tracks. Based on the proposed model, transient response of such interconnect structures is presented. It is seen ground tracks can significantly affect the time-domain response of the interconnect lines. The computed interconnect circuit parameters are compared with finite-difference time-domain simulations. The proposed model can be practically used for time-domain analysis of microstrip lines also. The results obtained would be useful in design of high-speed interconnections for MCM, RF and MIC related applications. 190 Sharma, Chakravarty, and Bhattacharyya
Density-functional theory for excited states in a quasi-local-density approximation (1986)

The starting point of this paper is a recent extension by Theophilou of the Hohenberg-Kohn-Sham (HKS) density-functional theory to ensembles of systems consisting of the M lowest eigenstates, equally weighted. As in the HKS theory the key quantities are the exchange-correlation energy, ${E}_{\mathrm{xc}{}^{M}[\mathrm{n}(\mathrm{r})]}$, and potential, ${v}_{\mathrm{xc}{}^{M}(\mathit{r};[\mathit{n}(\mathit{r}\mathcal{'})])}$. The present paper provides expressions for these quantities, valid for systems of slowly varying density. Even for such systems, however, there are essential nonlocal effects. Nevertheless both ${E}_{\mathrm{xc}{}^{M}}$ and ${v}_{\mathrm{xc}{}^{M}}$ can be calculated in terms of quantities characteristic of appropriate uniform thermal ensembles. This theory is the analog of the ground-state local-density approximation and allows calculation of excited-state energies and densities.
Storage systems support for multimedia applications (2003)

Lately, on-demand streaming multimedia applications have become very popular. Contemporary personal computers can handle the load imposed by such multimedia applications on the client side, but the potentially high number of concurrent users accessing a server represents a generic problem. The multimedia storage system is responsible for storage and retrieval of multimedia data from storage devices, and plays a vital role for the performance and scalability of multimedia servers. It deals with issues related to data placement, scheduling, file management, continuous data delivery, buffer management, prefetching, etc., and with the particular demands of multimedia applications, such as real-time characteristics, large file sizes, high data rates, and several data sources. Performing these tasks and supporting these requirements appropriately are burdened by an increasing speed mismatch between processors and the most prolific and affordable storage devices, – magnetic disks –, and by the introduction of new requirements in new multimedia scenarios. In this article, we give a survey of storage system support for continuous media applications and discuss issues related to integration of different mechanisms for the future multimedia storage systems.
TRIBAL REVISIONS IN THE ASTERACEAE PART 1 THE RELATIONSHIP OF GEISSOLEPIS (1972)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
LDPC decoder architecture for high-data rate personal-area networks (2011)

Emerging standards for wireless communications in the 60GHz band, such as WiGig, IEEE 802.11ad, and IEEE 802.15.3c, require throughputs between 1.5 and 6Gb/s and use rate adaptive low-density parity-check (LDPC) codes as the main form of forward error correction. State-of-the-art flexible LDPC decoders cannot simultaneously achieve the high throughput mandated by these standards and the low power needed for mobile applications. This work develops a flexible, fully pipelined architecture for the IEEE 802.11ad standard capable of achieving both goals. Based on a decoder synthesized in a low-power 65nm CMOS technology, the decoder dissipates 42mW at the 1.5Gb/s throughput and 84mW at the 3Gb/s throughput for the worst-case matrix in the standard.
Functionalization of polystyrene. 1. Alkylation with substituted benzyl halide and benzyl alcohol compounds (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFunctionalization of polystyrene. 1. Alkylation with substituted benzyl halide and benzyl alcohol compoundsA. Warshawsky, R. Kalir, and A. PatchornikCite this: J. Org. Chem. 1978, 43, 16, 3151–3157Publication Date (Print):August 1, 1978Publication History Published online1 May 2002Published inissue 1 August 1978https://pubs.acs.org/doi/10.1021/jo00410a012https://doi.org/10.1021/jo00410a012research-articleACS PublicationsRequest reuse permissionsArticle Views672Altmetric-Citations31LEARN 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
Formation of Reversible Clusters with Controlled Degree of Aggregation (2016)

We develop a reversible colloidal system of silica nanoparticles whose state of aggregation is controlled reproducibly from a state of fully dispersed nanoparticles to that of a colloidal gel and back. The surface of silica nanoparticles is coated with various amino silanes to identify a silane capable of forming a monolayer on the surface of the particles without causing irreversible aggregation. Of the three silanes used in this study, N-[3-(trimethoxysilyl)propyl]ethylenediamine was found to be capable of producing monolayers up to full surface coverage without inducing irreversible aggregation of the nanoparticles. At near full surface coverage the electrokinetic behavior of the functionalized silica is completely determined by that of the aminosilane. At acidic pH the ionization of the amino groups provides electrosteric stabilization and the system is fully dispersed. At basic pH, the dispersion state is dominated by the hydrophobic interaction between the uncharged aminosilane chains in the aqueous environment and the system forms a colloidal gel. At intermediate pH values the dispersion state is dominated by the balance between electrostatic and hydrophobic interactions, and the system exists in clusters whose size is determined solely by the pH. The transformation between states of aggregation is reversible and a reproducible function of pH. The rate of gelation can be controlled to be as fast as minutes while deaggregation is much slower and takes several hours to complete.
Programmable Spectral Filter in C-Band Based on Digital Micromirror Device (2019)

Optical filters have been adopted in many applications such as reconfigurable telecommunication switches, tunable lasers and spectral imaging. However, most of commercialized filters based on a micro-electrical-mechanical system (MEMS) only provide a minimum bandwidth of 25 GHz in telecom so far. In this work, the programmable filter based on a digital micromirror device (DMD) experimentally demonstrated a minimum bandwidth of 12.5 GHz in C-band that matched the grid width of the International Telecommunication Union (ITU) G.694.1 standard. It was capable of filtering multiple wavebands simultaneously and flexibly by remotely uploading binary holograms onto the DMD. The number of channels and the center wavelength could be adjusted independently, as well as the channel bandwidth and the output power. The center wavelength tuning resolution of this filter achieved 0.033 nm and the insertion loss was about 10 dB across the entire C-band. Since the DMD had a high power handling capability (25 KW/cm²) of around 200 times that of the liquid crystal on silicon (LCoS) chip, the DMD-based filters are expected to be applied in high power situations.
Continuous Glucose Monitoring: Real-Time Algorithms for Calibration, Filtering, and Alarms (2010)

Algorithms for real-time use in continuous glucose monitors are reviewed, including calibration, filtering of noisy signals, glucose predictions for hypoglycemic and hyperglycemic alarms, compensation for capillary blood glucose to sensor time lags, and fault detection for sensor degradation and dropouts. A tutorial on Kalman filtering for real-time estimation, prediction, and lag compensation is presented and demonstrated via simulation examples. A limited number of fault detection methods for signal degradation and dropout have been published, making that an important area for future work.
CMOS current comparator circuit (1983)

A CMOS current comparator circuit design is presented and its simulated performance described. A comparator circuit designed to detect the presence of, for example, 5 μA realised in a standard polysilicon-gate CMOS process technology exhibits a simulated propagation delay of about 10 ns.
Birefringent imaging spectrometer (2002)

A Fourier-transform imaging spectrometer, believed to be novel, based on the Savart polariscope is presented. There is no slit in this instrument, which means that it has a high throughput. The principle and the system configuration are described. Several preliminary experimental results are shown.
Dehydrogenation of the NH−NH Bond Triggered by Potassium <i>tert</i>‐Butoxide in Liquid Ammonia (2016)

Abstract A novel strategy for the dehydrogenation of the NH−NH bond is disclosed using potassium tert ‐butoxide ( t BuOK) in liquid ammonia (NH 3 ) under air at room temperature. Its synthetic value is well demonstrated by the highly efficient synthesis of aromatic azo compounds (up to 100 % yield, 3 min), heterocyclic azo compounds, and dehydrazination of phenylhydrazine. The broad application of this strategy and its benefit to chemical biology is proved by a novel, convenient, one‐pot synthesis of aliphatic diazirines, which are important photoreactive agents for photoaffinity labeling.
ROLE OF NERVE GROWTH FACTOR IN THE DEVELOPMENT OF RAT SYMPATHETIC NEURONS IN VITRO (1977)

To study the effect of nerve growth factor (NGF) on neuronal survival, growth, and differentiation, cultures of dissociated neonatal rat sympathetic neurons virtually free of other cell types were maintained for 3-4 wk. In the absence of NGF, the neurons did not survive for more than a day. Increased levels of NGF increased neuronal survival and growth (total protein and total lipid phosphate); saturation occurred at 0.5 /xg/ml 7S NGF. Neuronal differentiation examined by measuring catecholamine (CA) production from tyrosine also depended on the level of NGF in the culture medium. As the NGF concentration was raised, CA production per neuron, per nanogram protein, or per picomole lipid phosphate increased until saturation was achieved between 1 and 5 /~g/ml 7S NGF. Thus, NGF induces neuronal survival, growth, and differentiation of CA production in a dose-dependent fashion. Neuronal growth and differentiation were quantitatively compared in the presence of the high and low molecular weight forms of NGF; no significant functional differences were found.
A Dual Loop Control Strategy for Parallel Interleaved Three-Phase Four-Leg PWM Boost-Type Rectifier in UPS (2012)

This paper presents a dual-loop control strategy for parallel interleaved three-phase four-leg PWM boost-type rectifier in double conversion UPS. The interleaving method is adopted for its main benefit of harmonic cancellation. The current in the fourth leg is treated as a perturbation because the fourth leg is shared by rectifier and inverter, and the controller can be designed in a-b-c coordinate conveniently. The DCbus voltage feedback in outer control loop can be delayed by quarter-cycle to filter out the oscillating component when the load of UPS is unbalanced. The performance of proposed control scheme is verified by experimental results. Streszczenie. W artykule zaprezentowano strategie dwoch petli sterowania trojfazowym czterogaleziowym prostownikiem PWM typu boost w ukladzie UPS. Wykorzystano metode z przeplotem w celu eliminacji wplywu harmonicznych. (Dwuobwodowa strategia sterowania trojfazowym prostownikiem PWM w ukladach UPS)
UAV-Based Sensor Web Monitoring System (2012)

An unmanned aerial vehicle- (UAV-) based monitoring system is developed as an intermediate system between aerial survey and ground survey. All the measurement tools are mounted on the UAV to acquire detailed information from low altitudes which is different from a satellite or a plane. The monitoring is carried out from the sky, but the spatial and temporal resolutions are freely selected near the ground. In this study, the data is easily acquired with safety and mobility by the utilization of a sensor web. A sensor web is a type of sensor network which is well suited for environmental monitoring. Sensor nodes are spatially distributed and wirelessly communicate with each other. In this study, the UAV-based system is considered as a mobile sensor node. This study proposes a combination of UAV-based monitoring with a ubiquitous sensor network.
Direct fabrication of terahertz optical devices on low-absorption polymer substrates (2009)

We have fabricated terahertz wire grid polarizer and terahertz bandpass filter devices on high-density polyethylene substrates using simple photolithographic fabrication techniques. The performance of the fabricated devices was measured using a Fourier transform IR spectrometer. Both devices showed good performance in the terahertz frequency range up to 5 THz, in agreement with rigorous coupled-wave analysis (polarizer) and finite-difference time-domain (filter) simulations. Our results successfully demonstrate the use of standard fabrication techniques to produce large-aperture free-standing terahertz optical devices on low-absorption polymer materials with the advantage of low cost using a simple fabrication process. The fabricated polarizer had better than 30 dB extinction ratio at 3 THz. Bandpass filters were demonstrated at three different center frequencies (1.5, 1.8, 2.9 THz) with a 3 dB insertion loss and 2<or=Q<or=7.
Pyruvate flux distribution in NADH-oxidase-overproducing Lactococcus lactis strain as a function of culture conditions (1999)

The influence of growth conditions on product formation from glucose by Lactococcus lactis strain NZ9800 engineered for NADH-oxidase overproduction was examined. In aerobic batch cultures, a large production of acetoin and diacetyl was found at acidic pH under pH-unregulated conditions. However, pyruvate flux was mainly driven towards lactate production when these cells were grown under strictly pH-controlled conditions. A decreased NADH-oxidase overproduction accompanied the homolactic fermentation, suggesting that the cellular energy was used with preference to maintain cellular homeostasis rather than for NADH-oxidase overproduction. The end product formation and NADH-oxidase activity were also studied in cells grown in aerobic continuous cultures under acidic conditions. A homoacetic type of fermentation as well as a low NADH-oxidase overproduction were observed at low dilution rates. NADH-oxidase was efficiently overproduced as the dilution rate was increased and consequently metabolic flux through lactate dehydrogenase drastically decreased. Under these conditions the flux limitation via pyruvate dehydrogenase was relieved and this enzymatic complex accommodated most of the pyruvate flux. Pyruvate was also significantly converted to acetoin and diacetyl via α-acetolactate synthase. At higher dilution rates, acetate production declined and the cultures turned to mixed-acid fermentation. These results suggest that the need to maintain the cellular homeostasis influenced NADH-oxidase overproduction and consequently the end product formation from glucose in these engineered strains.
Studying functional dynamics in bio-molecules using accelerated molecular dynamics (2011)

Many biologically important processes such as enzyme catalysis, signal transduction, ligand binding and allosteric regulation occur on the micro- to millisecond time-scale. Despite the sustained and rapid increase in available computational power and the development of efficient simulation algorithms, molecular dynamics (MD) simulations of proteins and bio-machines are generally limited to time-scales of tens to hundreds of nano-seconds. In this perspective article we present a comprehensive review of Accelerated Molecular Dynamics (AMD), an extended biased potential molecular dynamics approach that allows for the efficient study of bio-molecular systems up to time-scales several orders of magnitude greater than those accessible using standard classical MD methods, whilst still maintaining a fully atomistic representation of the system. Compared to many other approaches, AMD affords efficient enhanced conformational space sampling without any a priori understanding of the underlying free energy surface, nor does it require the specific prior definition of a reaction coordinate or a set of collective variables. Successful applications of the AMD method, including the study of slow time-scale functional dynamics in folded proteins and the conformational behavior of natively unstructured proteins are discussed and an outline of the different variants and extensions to the standard AMD approach is presented.
Memory Effects in Molecular Films of Free‐Standing Rod‐Shaped Ruthenium Complexes on an Electrode (2011)

Forget me not: When an oxidizing voltage pulse was applied, ruthenium complexes immobilized on an ITO electrode showed a memory effect, and the original anodic photoresponse (see picture, above) changed to a cathodic one (below). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.