gebhart/patrepeval huggingface dataset:
New laser Doppler velocimetry using self-mixing effect in a vertical-cavity surface-emitting laser modulated by triangular current (2005)

A new, compact laser Doppler velocimetry is proposed, which is composed of a single-mode vertical-cavity surface-emitting laser modulated by a dynamical triangular current and a collimating lens. It can indicate the direction of velocity without ambiguity in the wide dynamic range of 5.2mm/s to 479.9mm/s when the sampling time is 0.1 second in the measurement. The accuracy of velocity measurement is better than 3.1% in the whole velocity range. What's more, this LDV works very well on different diffusing surfaces, even on a black glossy photographic paper.
Violene/Cyanine Hybrids as Electrochromic Systems: A New Variation of the General Structure (2001)

The recently disclosed general structure of violene/cyanine hybrids is extended to a new variant. The groups X and Y complete the structure for cyanines, oxonols or merocyanines in the formula (Scheme 2, at the right side). Therefore, both the addition and removal of two electrons is possible. To test if this general motif is applicable to ring-closed compounds, tetrapyridinium thiophene 4OX4+ was prepared, and studied using cyclic voltammetry, spectroelectrochemistry and PM3 calculations covering all five redox states of 4.
Scatter and attenuation correction for brain SPECT using attenuation distributions inferred from a head atlas. (2000)

SPECT reconstructions guided by IAD are sufficiently accurate to identify regional cerebral blood flow deficits of 10%, which are typical in moderate and advanced dementia.
Compile-time optimized and statically scheduled N-D convnet primitives for multi-core and many-core (Xeon Phi) CPUs (2017)

Convolutional networks (ConvNets), largely running on GPUs, have become the most popular approach to computer vision. Now that CPUs are closing the FLOPS gap with GPUs, efficient CPU algorithms are becoming more important. We propose a novel parallel and vectorized algorithm for N-D convolutional layers. Our goal is to achieve high utilization of available FLOPS, independent of ConvNet architecture and CPU properties (e.g. vector units, number of cores, cache sizes). Our approach is to rely on the compiler to optimize code, thereby removing the need for hand-tuning. We assume that the network architecture is known at compile-time. Our serial algorithm divides the computation into small sub-tasks designed to be easily optimized by the compiler for a specific CPU. Sub-tasks are executed in an order that maximizes cache reuse. We parallelize the algorithm by statically scheduling tasks to be executed by each core. Our novel compile-time recursive scheduling algorithm is capable of dividing the computation evenly between an arbitrary number of cores, regardless of ConvNet architecture. It introduces zero runtime overhead and minimal synchronization overhead. We demonstrate that our serial primitives efficiently utilize available FLOPS (75--95%), while our parallel algorithm attains 50--90% utilization on 64+ core machines. Our algorithm is competitive with the fastest CPU implementation to date (MKL2017) for 2D object recognition, and performs much better for image segmentation. For 3D ConvNets we demonstrate comparable performance to the latest GPU hardware and software even though the CPU is only capable of half the FLOPS of the GPU.
Separations by Continuous Electrochromatography (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSeparations by Continuous ElectrochromatographyArthur KarlerArthur KarlerMore by Arthur KarlerCite this: Anal. Chem. 1959, 31, 5, 848–851Publication Date (Print):May 1, 1959Publication History Published online1 May 2002Published inissue 1 May 1959https://pubs.acs.org/doi/10.1021/ac60149a035https://doi.org/10.1021/ac60149a035research-articleACS PublicationsRequest reuse permissionsArticle Views45Altmetric-Citations79LEARN 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
Über Steroide. 94. Mitteilung. Weitere Steroidhormone mit zusätzlicher Doppelbindung in 11‐Stellung (1949)

Abstract Es wurden die dem Androsten‐3,17‐dion, dem Testosteron‐acetat, dem 17‐Methyl‐testosteron und dem Anhydro‐oxy‐progesteron entsprechenden Verbindungen mit zusätzlicher Doppelbindung in 11‐Stellung aus Ätiocholan‐3α, 12α, 17 β‐triol teils nach verschiedenen Methoden hergestellt. Die androgene bzw. gestagene Wirkung der neuen Verbindungen unterscheidet sich nicht wesentlich von derjenigen der genannten, wichtigen Steroidhormone. Damit gehören die 11‐Dehydro‐Hormone zu den wirksamsten dieser Körperklasse.
2,2,2-Trifluoroethyl Chlorooxoacetate—Universal Reagent for One-Pot Parallel Synthesis of <i>N</i><sup>1</sup>-Aryl-<i>N</i><sup>2</sup>-alkyl-Substituted Oxamides (2015)

A one-pot parallel synthesis of N(1)-aryl-N(2)-alkyl-substituted oxamides with 2,2,2-trifluoroethyl chlorooxoacetate was developed. The synthesis of a library of 45 oxamides revealed higher efficiency of this reagent over the known ethyl chlorooxoacetate. The reagent was successfully used to prepare the known oxamide-containing HIV entry inhibitors.
Production, selection, and maturation of thymocytes with high surface density of TCR. (1994)

The main steps in intrathymic T cell differentiation have been defined using bromodeoxyuridine as a postmitotic cell tracer. Thymocytes with a high surface expression of the TCR are generated in the first 24 h after DNA synthesis. The phenotype of these TCR(high) cells was studied during 10 days by using pairs of surface markers associated with BrdUrd. During the first 2 days, TCR(high) cells were of the CD4+CD8+HSA(high) phenotype, transiently expressed the early activation marker CD69, and contained a high percentage of cycling cells. This activation step preceded the transition from CD4+CD8+ to CD4+CD8- and then to CD4-CD8+ cells, followed by progressive HSA down regulation and increase in the expression of H-2K, Qa-2, and CD45RB. The phenotypic maturation was completed in 9 days. In Mls-1a mice, negative selection of V beta 6+ cells was observed at the earliest step of TCR(high) cell generation, and positive selection of V beta 8.2+ and V beta 14+ cells took place later and was correlated to the activation step. These data suggest that high TCR expression and cell activation are necessary for positive selection and subsequent T cell maturation.
Building a Large Corpus with Skeltal Syntactic Structure and its Application to Similar Sentence Retrieval System (1996)

本論文では, まず, 表層的情報のみを用いて安定的・高精度に構文解析を行う骨格構造解析の方法について述べる. 次に, これを用いて行った8万用例文に対する構文付きコーパスの作成について触れ, 骨格構造解析の有効性について述べる. さらに, この構文付きコーパスを対象として構築した類似用例検索システムについて述べる. 本システムは, (1) 構文的制約 (係り受け構造) を指定して検索できるので, 単語レベルの検索では検索されてしまうような多くの不適切な用例を絞り込むことができる (2) 分類語彙表を利用した意味コード化により, 類似用例の検索も可能である (3) インデックスに構文情報を含めることにより, 高速な構造検索を実現している (4) ユーザはウインドウ上で, 三角表を用いた構文構造のブラウジング検索パターンの指定などができ, 使いやすいインタフェースを実現している, などの特徴がある.
High-Frequency Dynamic Nuclear Polarization (2010)

Nuclear magnetic resonance (NMR) provides unparalleled information on molecular structure and intermolecular interactions with atomic-level resolution, but it nevertheless lacks sensitivity in comparison to other forms of spectroscopy. This problem is more acute in cases where multidimensional spectra are required, such as in protein NMR structural studies and in metabolomic experiments where biomarkers of interest may be present in low concentrations. An approach to addressing the issue of sensitivity is dynamic nuclear polarization (DNP) in which NMR signal intensities are enhanced by transferring the large Boltzmann polarization of electrons to nuclear spins via microwave irradiation at the electron Larmor frequency. This article describes some recent technological innovations—in particular, the development of high-frequency gyrotron oscillators and amplifiers and novel polarizing agents—that enable applications of DNP at the 10–20 T fields where contemporary NMR experiments are performed. In addition, we discuss potential and current applications which are wide ranging, and include magic angle spinning (MAS) NMR studies of amyloid fibrils and membrane proteins, and melting and dissolution experiments applicable to solution NMR that could serve as a tool for high throughput small molecule analysis such as metabolic screening.
[Study of the acupuncture effect on monoamine transmitters in rabbit plasma and brain tissue by high performance liquid chromatography with electrochemical detection]. (2002)

A rapid and simple method for the study of the acupuncture effect on monoamine transmitters and related compounds in rabbit plasma and brain tissue by high performance liquid chromatography with electrochemical detection was developed. An ODS column was selected as the separation column at 25 degrees C, and pH 4.50, 0.02 mol/L of trisodium citrate-0.05 mol/L sodium phosphate dibasic to methanol (95:5, volume ratio) without ion-pair at a flow rate of 1.0 mL/min. Four compounds, epinephrine (E), norepinephrine (NE), dopamine (DA) and 5-hydroxytryptamine (5-HT), were simultaneously separated and determined under the above conditions. Twenty rabbits were investigated after the acupuncture action upon the central neurotransmitters. The sufficient data showed that acupuncture could significantly affect the activities of the neurotransmitters including E, NE, DA and 5-HT, and the changed functions of the neurotransmitter systems induced by acupuncture not only lead to the neurotransmitter content increase both in brain and plasma but also cause the increase of rabbit breed ability. The results show that the method is very simple and fast. The method is valuable not only for clinical diagnosis but also for research work.
Coloration of Sapphire by Metal-Ion Implantation (1985)

Relations between the coloration of synthetic sapphire and impure elements introduced by ion implantation were investigated. Ion species used for implantation were Nb + , Fe + , Cu + , Co + , Ti + , Cr + . Doses of metal ions were 1 ×10 17 ∼3 ×10 17 ions/cm 2 . The color of the parts implanted with Fe + or Co + and subsequently annealed at 1000°C for 3 h was yellowish-brown or light blue, respectively. Transparencies in the visible range and the depth profiles of Fe and Co of the parts implanted with Fe + or Co + ions were measured.
A Recovery Cache for the PDP-11 (1980)

Backward error recovery is an integral part of the recovery block scheme that has been advanced as a method for providing tolerance against faults in software; the recovery cache has been proposed as a mechanism for providing this error recovery capability. This correspondence describes a recovery cache that has been built for the PDP-11 family of machines. This recovery cache has been designed to be an "add-on" unit which requires no hardware alterations to the host CPU but which intersects the bus between the CPU and the memory modules. Specially designed hardware enables concurrent operation of the recovery cache and the host system, and aims to minimize the overheads imposed on the host.
Biocompatible Magnetite/Gold Nanohybrid Contrast Agents via Green Chemistry for MRI and CT Bioimaging (2011)

Magnetite/gold (Fe(3)O(4)/Au) hybrid nanoparticles were synthesized from a single iron precursor (ferric chloride) through a green chemistry route using grape seed proanthocyanidin as the reducing agent. Structural and physicochemical characterization proved the nanohybrid to be crystalline, with spherical morphology and size ~35 nm. Magnetic resonance imaging and magnetization studies revealed that the Fe(3)O(4) component of the hybrid provided superparamagnetism, with dark T(2) contrast and high relaxivity (124.2 ± 3.02 mM(-1) s(-1)). Phantom computed tomographic imaging demonstrated good X-ray contrast, which can be attributed to the presence of the nanogold component in the hybrid. Considering the potential application of this bimodal nanoconstruct for stem cell tracking and imaging, we have conducted compatibility studies on human Mesenchymal Stem Cells (hMSCs), wherein cell viability, apoptosis, and intracellular reactive oxygen species (ROS) generation due to the particle-cell interaction were asessed. It was noted that the material showed good biocompatibility even for high concentrations of 500 μg/mL and up to 48 h incubation, with no apoptotic signals or ROS generation. Cellular uptake of the nanomaterial was visualized using confocal microscopy and prussian blue staining. The presence of the nanohybrids were clearly visualized in the intracytoplasmic region of the cell, which is desirable for efficient imaging of stem cells in addition to the cytocompatible nature of the hybrids. Our work is a good demonstrative example of the use of green aqueous chemistry through the employment of phytochemicals for the room temperature synthesis of complex hybrid nanomaterials with multimodal functionalities.
Morphine-induced spinal cholinergic activation: in vivo imaging with positron emission tomography (2001)

Positron emission tomography (PET) imaging of spinal cord in monkeys with a cholinergic tracer demonstrates increased spinal cholinergic activity in response to an analgesic dose of morphine, and this PET result correlates with measurement of acetylcholine spillover into spinal cord extracellular space induced by morphine, as measured by microdialysis. Previous studies in rats, mice, and sheep demonstrate activation of spinal cholinergic neurons by systemic opioid administration, and participation of this cholinergic activity in opioid-induced analgesia. Testing the relevance of this observation in humans has been limited to measurement of acetylcholine spillover into lumbar cerebrospinal fluid. The purpose of this study was to apply a recently developed method to image spinal cholinergic terminals non-invasively via PET and to test the hypothesis that the tracer utilized would reflect changes in local cholinergic activity. Following Animal Care and Use Committee approval, seven adult male rhesus monkeys were anesthetized on three separate occasions. On two of the occasions PET scans were performed using [(18)F] (+)-4-fluorobenzyltrozamicol ([(18)F]FBT), which selectively binds to the vesicular acetylcholine (ACh) transporter in the presynaptic cholinergic terminals. PET scans were preceded by injection of either saline or an analgesic dose of IV morphine (10 mg/kg). On the third occasion, microdialysis catheters were inserted in the spinal cord dorsal horn and acetylcholine concentrations in dialysates determined before and after IV morphine injection. Morphine increased cholinergic activity in the spinal cord, as determined by blood flow corrected distribution volume of [(18)F]FBT in the cervical cord compared to the cerebellum. Morphine also increased acetylcholine concentrations in microdialysates from the cervical cord dorsal horn. The one animal which did not show increased spinal cholinergic activity by PET from this dose of morphine also did not show increased acetylcholine from this morphine dose in the microdialysis experiment. These data confirm the ability to use PET to image spinal cholinergic terminals in the monkey spinal cord and suggest that acute changes in cholinergic activity can be imaged with this non-invasive technique. Following preclinical screening, PET scanning with [(18)F]FBT may be useful to investigate mechanisms of analgesic action in normal humans and in those with pain.
Selling off Privacy at Auction (2014)

Author(s): Lukasz Olejnik, Minh-Dung Tran, Claude Castelluccia Download: Paper (PDF) Date: 22 Feb 2014 Document Type: Briefing Papers Additional Documents: Slides Associated Event: NDSS Symposium 2014 Abstract: This paper studies how personal data is exchanged by advertising companies via Real Time Bidding (RTB) and Cookie Matching. We show that a large proportion of users’ web … Continued
Attribute Based Proxy Re-encryption for Data Confidentiality in Cloud Computing Environments (2011)

To ensure data confidentiality and fine-grained access control in cloud computing environments, a recent study proposed system model using Key Policy-Attribute Based Encryption(KP-ABE) and Proxy Re-Encryption(PRE). But, existing work has effected the violation of data confidentiality through collusion attack of revoked user in system and cloud server. To resolve this problem, we propose system model that store and divide data file into header, body. In addition, our scheme selectively delegate decryption right using Type-based Proxy re-encryption.
HydEE: Failure Containment without Event Logging for Large Scale Send-Deterministic MPI Applications (2012)

High performance computing will probably reach exascale in this decade. At this scale, mean time between failures is expected to be a few hours. Existing fault tolerant protocols for message passing applications will not be efficient anymore since they either require a global restart after a failure (check pointing protocols) or result in huge memory occupation (message logging). Hybrid fault tolerant protocols overcome these limits by dividing applications processes into clusters and applying a different protocol within and between clusters. Combining coordinated check pointing inside the clusters and message logging for the inter-cluster messages allows confining the consequences of a failure to a single cluster, while logging only a subset of the messages. However, in existing hybrid protocols, event logging is required for all application messages to ensure a correct execution after a failure. This can significantly impair failure free performance. In this paper, we propose HydEE, a hybrid rollback-recovery protocol for send-deterministic message passing applications, that provides failure containment without logging any event, and only a subset of the application messages. We prove that HydEE can handle multiple concurrent failures by relying on the send-deterministic execution model. Experimental evaluations of our implementation of HydEE in the MPICH2 library show that it introduces almost no overhead on failure free execution.
InterRing: A Visual Interface for Navigating and Manipulating Hierarchies (2003)

Radial, space-filling (RSF) techniques for hierarchy visualization have several advantages over traditional node–link diagrams, including the ability to use the display space efficiently while effectively conveying the hierarchy structure. Several RSF systems and tools have been developed to date, each with varying degrees of support for interactive operations such as selection and navigation. In this paper, we describe what we believe to be a complete set of desirable operations on hierarchical structures. We then present InterRing, an RSF hierarchy visualization system that supports a significantly more extensive set of these operations than prior systems. In particular, InterRing supports multifocus distortions, interactive hierarchy reconfiguration, and both semiautomated and manual selection. We show the power and utility of these and other operations, and describe our ongoing efforts to evaluate their effectiveness and usability.
Molecular and Phylogenetic Analyses of the MADS-Box Gene Family in Tomato (2006)

MIKCc-type MADS-box genes encode key transcriptional regulators of a variety of developmental processes in Arabidopsis thaliana. However, there has been relatively little effort to systematically carry out comparative genomic or functional analyses of these genes across flowering plants. Here we describe a strategy to identify members of the MIKCc-type MADS-box gene family from any angiosperm species of interest. Using this approach, we have identified 24 MIKCc-type MADS-box genes in tomato, including 17 that have not previously been characterized. Using these sequences, we have performed phylogenetic analyses that indicate that there have been a number of gene duplication and loss events in tomato relative to Arabidopsis. We also describe the expression domains of these genes and compare these results with their cognates in Arabidopsis. These analyses demonstrate the utility of this approach for characterizing a large number of MIKCc-type MADS-box genes from any flowering plant species of interest and provide a framework for evolutionary comparisons of this important gene family across angiosperms.
Neutron-induced Soft-Error Simulation Technology for Logic Circuits (2005)

In this paper, we describe the simulation technology used to estimate soft errors in logic circuits. The neutron induced soft-error simulator (NISES), which was previously developed for estimating soft-errors in memories is applied to the estimating soft errors in latch circuits and its effectiveness is shown. We model soft-error phenomena in combinational circuits and develop a novel simulation system for estimating soft errors in such circuits. Estimated results show that soft-error rate increases in combinational circuits as technology advances. Soft errors in logic circuits will thus become crucial.
Wireless power delivery system for mouse telemeter (2009)

Implantable telemetry systems provide chronic measurements of physiological parameters such as the electrocardiogram and blood pressure from research animals. Device operation is typically limited by battery life which also determines device size. We present a system for powering implanted telemetry devices for use in mice which provides lifetime monitoring. It uses coils under the home cage of the animal to generate a magnetic field capable of supplying power continuously to a telemetry system implanted inside the mouse. A guaranteed minimum power of 20 mW is provided over a 100 mm × 100 mm area independent of mouse orientation which facilitates high bandwidth (2 kHz sample rate) continuous physiological data.
Video through a crystal ball (2016)

Mobile environments are characterized by rapidly fluctuating bandwidth and intermittent connectivity. Existing video streaming algorithms can perform poorly in such network conditions because of their reactive adaptation approach. Recent efforts suggest that bitrate adaptation using proactive accurate bandwidth prediction can help improve the quality of experience (QoE) of video streaming. However, highly accurate long-term predictions may be needed in mobile environments and those can be difficult to obtain. In this work, we examine the impact of bandwidth prediction quality on the QoE. We first characterize bandwidth profiles where bandwidth prediction-based adaptation can be useful. We then study the impact of prediction horizon and errors on the performance of Adaptive Bitrate (ABR) streaming. We observe that performance improves as the prediction horizon increases at first and then benefits start to diminish. We demonstrate that with proper error mitigation heuristic, even erroneous predictions can be useful in some scenarios. Finally, we study the role of video system parameters, namely buffer size and bitrate granularity on bandwidth prediction-based adaptation.