gebhart/patrepeval huggingface dataset:
Wavelet Estimators in Nonparametric Regression: A Comparative Simulation Study (2001)

Wavelet analysis has been found to be a powerful tool for the nonparametric estimation of spatially-variable objects. We discuss in detail wavelet methods in nonparametric regression, where the data are modelled as observations of a signal contaminated with additive Gaussian noise, and provide an extensive review of the vast literature of wavelet shrinkage and wavelet thresholding estimators developed to denoise such data. These estimators arise from a wide range of classical and empirical Bayes methods treating either individual or blocks of wavelet coefficients. We compare various estimators in an extensive simulation study on a variety of sample sizes, test functions, signal-to-noise ratios and wavelet filters. Because there is no single criterion that can adequately summarise the behaviour of an estimator, we use various criteria to measure performance in finite sample situations. Insight into the performance of these estimators is obtained from graphical outputs and numerical tables. In order to provide some hints of how these estimators should be used to analyse real data sets, a detailed practical step-by-step illustration of a wavelet denoising analysis on electrical consumption is provided. Matlab codes are provided so that all figures and tables in this paper can be reproduced.
Power control in packet switched time division duplex direct sequence spread spectrum communications (2003)

A packet switched time-division duplex direct-sequence spread-spectrum (DS-SS) communication system is proposed for operation in mobile and wireless indoor CDMA communications with Rayleigh fading characteristics. A power control method is then proposed for this system capable of providing effective estimates of the fading state of the channel and using this information to adaptively control the uplink transmission power for equalized received power at the base station. The performance of this power control scheme is evaluated by examining the distribution of the received power compared to a reference level for typical indoor communication system parameters.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
What can the pure-tone audiogram tell us about a patientʼs SNR loss? (2000)

Mead C. Killion, PhD, is President of Etymotic Research, Adjunct Professor of Audiology at Northwestern University, and Visiting Professor of Audiology at Rush University. Patricia A. Niquette, MA, is Research Audiologist at Etymotic Research. Correspondence to the authors at Etymotic Research, 61 Martin Lane, Elk Grove Village, IL 60007.
Real Field Deployment of a Smart Fiber-Optic Surveillance System for Pipeline Integrity Threat Detection: Architectural Issues and Blind Field Test Results (2017)

This paper presents an online augmented surveillance system that aims at real-time monitoring of activities along a pipeline. The system is deployed in a fully realistic scenario and exposed to real activities carried out in unknown places at unknown times within a given test time interval (the so-called blind field tests). We describe the system architecture that includes specific modules to deal with the fact that continuous online monitoring needs to be carried out, while addressing the need of limiting the false alarms at reasonable rates. To the best of our knowledge, this is the first published work in which a pipeline integrity threat detection system is deployed in a realistic scenario (using a fiber optic along an active gas pipeline) and is thoroughly and objectively evaluated under realistic blind conditions. The system integrates two operation modes: the machine+activity identification mode identifies the machine that carries out a certain activity along the pipeline, and the threat detection mode directly identifies if the activity along the pipeline is a threat or not. The blind field tests are carried out in two different pipeline sections: the first section corresponds to the case in which the sensor is close to the sensed area, while the second one places the sensed area about 35 km far from the sensor. Results of the machine+activity identification mode showed an average machine+activity classification rate of 46.6%. For the threat detection mode, eight out of ten threats were correctly detected, with only one false alarm appearing in a 55.5-h sensed period.
Inhibitory Effects of Calycosin Isolated from the Root of Astragalus membranaceus on Melanin Biosynthesis (2009)

Tyrosinase is a key enzyme for melanin biosynthesis, and hyperpigmentation disorders are associated with abnormal accumulation of melanin pigments, which can be reduced by treatment with depigmenting agents. A methanol extract of Astragalus membranaceus showed inhibitory activity against mushroom tyrosinase. The active compound was purified from the methanol extract of A. membranaceus and, following several chromatographic methods, was identified as calycosin via spectroscopic analysis. The results showed that calycosin exhibited tyrosinase inhibitory activity with an IC(50) value of 38.4 microM. Moreover, calycosin showed a melanin biosynthesis inhibition zone in a culture plate of Streptomyces bikiniensis, which is commonly used as an indicator organism. Furthermore, calycosin dramatically reduced melanin synthesis of Melan-a cells without any apparent cytotoxicity and reduced expression of melanogenic enzyme, tyrosinase. These results suggest that calycosin may be an effective skin-lightening agent that regulates the expression of melanogenic enzymes.
Necrotizing fasciitis. (1989)

Necrotizing fasciitis can be a devastating infectious process when diagnosis and early aggressive therapy is delayed. The etiologic factors that may play a role in or affect this necrotizing infectious process are reviewed. An interesting case is presented of bilateral, lower extremity, necrotizing fasciitis in a patient with diabetes mellitus, peripheral vascular disease and profound sensory neuropathy.
Public network integrity—avoiding a crisis in trust (1994)

Public telecommunications networks have historically been designed with high levels of integrity in mind. Network architects have recognized that public communications facilities play a critical role in society and that a disruption in service could cause severe economic dislocation or even the loss of life. Given this sensitivity, how could the recent series of massive network failures occur? What went wrong with our thinking? What should we change in the future to prevent the recurrence of such failures and thereby avoid a possible crisis in the public's trust of our stewardship? The paper addresses these questions and offers a set of recommendations based on new network integrity measures and design objectives.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Novel technique of NDE in ceramic bearing balls (2002)

A new technique for the nondestructive evaluation (NDE) of ceramic bearing balls is presented. The technique is based on measuring the quality factor (Q) of various surface waves. Thus, the existence of surface cracks will lower the surface wave resonance Q's. A simple experimental set-up capable of exciting and detecting the various resonances on the bearing balls and their Q's was constructed. Low-frequency resonances of torsional and spheroidal modes are used to measure the shear wave velocity V/sub s/ and Poisson's ratio nu . High-frequency resonances of the surface waves are used to determine the presence of surface defects.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Evolution of T-cell Receptor Gamma and Delta Constant Region and Other T-Cell-Related Proteins in the Human-Rodent-Artiodactyl Triplet (1997)

In this paper we report a detailed comparative and evolutionary analysis of the sequences of constant T-cell receptor (Tcr) C gamma delta genes of artiodactyls compared to the homologous sequences of rodents and primates. Because of the frequency and physiological distribution of gamma delta T-cells in different animals, rodents and humans are defined as "gamma delta low" species and ruminants as "gamma delta high" species. Such a characteristic seems to be due to an adaptive role of gamma delta T-cell function. By analyzing the ruminant gene phylogeny of Tcr C gamma we were able to estimate the distance between cattle and sheep at 18 million years ago, a time that is in agreement with other nonmolecular estimates. For Tcr C gamma delta genes a peculiar phylogenetic relationship was found, with human and mouse clustering together and leaving artiodactyls apart. By using appropriate outgroups, the same phylogenetic pattern was obtained with other T-cell related sequences: namely, Tcr C alpha chain, CD3 gamma and delta invariant subunits. Interleukin-2. Interleukin-2 receptor alpha chain and Interleukin-1 beta with the exception of Tcr C beta chain and Interleukin-1 alpha. In contrast, the analysis of all other T-cell nonrelated genes, available in primary databases reveals a different tree, where primates and artiodactyls are sister taxa and rodents are apart in accordance with the current view of mammalian phylogeny. These data are relevant to important evolutionary issues. They show how misleading a phylogeny based on a single or on a few homologous genes may be. In addition they demonstrate that genes with correlated functions may evolve in a lineage specific manner probably in relation to environmental conditions.
SCS: KoanLogic's Secure Cookie Sessions for HTTP (2013)

This memo defines a generic URI and HTTP-header-friendly envelope for carrying symmetrically encrypted, authenticated, and origintimestamped tokens. It also describes one possible usage of such tokens via a simple protocol based on HTTP cookies.
Expression, purification and characterization of the ubiquitous protein kinase C-related kinase 1 (1995)

The recently described protein kinase C-related kinase (PRK) family is comprised of at least three members: PRK1, PRK2 and PRK3. Here the expression, purification and characterization of the ubiquitously expressed isoform, PRK1, is described. The enzyme was expressed in COS 7 cells and subsequently purified to apparent homogeneity by sequential column chromatography. The purified PRK1 protein migrates as a single 120 kDa polypeptide on SDS/PAGE. It displays a substrate specificity that in part resembles that of protein kinase C (PKC); however, unlike PKC, it is not activated by any combination of phorbol esters, diacylglycerol and Ca2+. Nevertheless, it can be activated by limited proteolysis, indicating a negative regulatory role for the N-terminal domain(s). PRK1 is also activated by phospholipids. The physiological relevance of this activation is discussed.
Fiber Fabry Perot Interferometer for Optical Channel Monitoring (2002)

We present a fiber Fabry Perot interferometer bas on two new polymer micro-fabrication techniques. We demonstrate power per channel monitoring of a WDM system with power accuracy plusmn0.4 dB
A variational approach to simultaneous multi-object tracking and classification (2015)

Object tracking and classification serve as basic components for the different perception tasks of autonomous robots. They provide the robot with the capability of class-aware tracking and richer features for decision-making processes. The joint estimation of class assignments, dynamic states and data associations results in a computationally intractable problem. Therefore, the vast majority of the literature tackles tracking and classification independently. The work presented here proposes a probabilistic model and an inference procedure that render the problem tractable through a structured variational approximation. The framework presented is very generic, and can be used for various tracking applications. It can handle objects with different dynamics, such as cars and pedestrians and it can seamlessly integrate multi-modal features, for example object dynamics and appearance. The method is evaluated and compared with state-of-the-art techniques using the publicly available KITTI dataset.
“Wasp-Waisted Warrior” (1940)

Essay| December 24 1940 “Wasp-Waisted Warrior”: L. G. Gray L. G. Gray Search for other works by this author on: This Site PubMed Google Scholar Current History (1940) 52 (6): 8–10. https://doi.org/10.1525/curh.1940.52.6.8 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation L. G. Gray; “Wasp-Waisted Warrior”: . Current History 24 December 1940; 52 (6): 8–10. doi: https://doi.org/10.1525/curh.1940.52.6.8 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentCurrent History Search This content is only available via PDF. © 1940 by The Regents of the University of California1940 Article PDF first page preview Close Modal You do not currently have access to this content.
ChemInform Abstract: 4‐Substituted‐1‐methyl‐1H‐pyrrolo[3,2‐c]pyridines. (1986)

Abstract The carbaldehyde (I) is converted to the pyrrolo[3,2‐c]pyridine (VI) via (III) and (V) in 32% yield.
A novel proposal to increase the power factor of photovoltaic grid-connected converters at light loads (2009)

In this paper the current control performance of photovoltaic inverters is taken into account. The analytical contribution to the output current due to the grid voltage is analysed and a novel current reference feed-forward is considered in order to compensate for that effect and guarantee a proper current control when feedback current to current controller is measured on the inverter-side inductor of an LCL filter, i.e. as frequent in commercial converters. Dynamical performance of the system, especially at low currents, is also raised by means of a feed-forward action on voltage reference as a function of measured grid voltage, which is normally not considered in literature when resonant controllers are adopted. A novel filtering of the needed voltage feed-forward adopting resonant term is introduced and analysed, leading to an increase in the performance of the current control. Extensive analytical and simulation analysis taking into account all the actual implementation characteristics and limitations is provided to demonstrate the validity of the proposals.
Wi-Fi User Profiling via Access Point Honeynets (2019)

Until recently Wi-Fi-based user profiling and passive surveillance of the public was straight forward and caused therefore huge privacy concerns. Here Wi-Fi probe request bursts transmitted by a user device, e.g. a mobile phone, were sorted by the device's static MAC address and linked across location and time, therefore giving a detailed location and movement profile of the device's user. To combat this, device manufacturers introduced MAC address randomization in 2014, whereby a device changes its MAC address to a random value between transmissions of probe requests. Devices also switched to a more passive form of scanning for known networks, in which they wait for a beacon frame from a saved network rather than broadcasting the SSID of the network and awaiting a response. While both mechanisms reduce the attack surface and make it harder to track users, it does not fully solve the problem. This paper presents an access point honeypot system that works around both enhancements, therefore allowing tracking and profiling of the public with little effort or expense.
A nitric oxide synthesis inhibitor (L-NAME) reduces licking behavior and Fos-labeling in the spinal cord of rats during formalin-induced inflammation (1996)

Formalin injected subcutaneously into the hindpaw of the rat produces an animal model of inflammation that exhibits a phasic component and a tonic component of pain. We evaluated the effects of a nitric oxide synthase inhibitor, N omega-nitro-L-arginine methyl ester (L-NAME), on a formalin-induced behavior, hindpaw licking, and on Fos-labeling of nuclei in the fifth lumbar spinal segment. Our results demonstrated that pretreatment with intrathecal doses of 0.3 and 1.0 mg of L-NAME significantly reduced licking behavior associated with injection of formalin into the left hindpaw of the rat. In addition, these same doses of L-NAME reduced formalin-induced Fos-labeling in the ipsilateral dorsal gray matter (as compared to the contralateral gray matter). Qualitative assessment suggested that the reduction in labeling occurred primarily in the superficial dorsal horn. The stereoisomer, D-NAME, administered at the same doses had little to no effect on either formalin-induced licking or Fos-labeling. Finally, our results revealed that total licking time was related to Fos-labeling. Rats that spent less time licking the hindpaw exhibited a smaller increase in Fos-labeling. Our results suggest that the production of nitric oxide is associated with licking behavior resulting from formalin injection into the hindpaw of rats. Our results also suggest that the production of nitric oxide and Fos are associated. Indeed, these substances may be involved in spinal pathways associated with nociception.
Short Notices (1982)

Short Notices Get access DEREK JARRETT DEREK JARRETT Goldsmiths' CollegeLondon Search for other works by this author on: Oxford Academic Google Scholar The English Historical Review, Volume XCVII, Issue CCCLXXXII, January 1982, Page 203, https://doi.org/10.1093/ehr/XCVII.CCCLXXXII.203 Published: 01 January 1982
Protein Serine/Threonine Phosphatases: New Avenues for Cell Regulation (1994)

Cells organize many of their biochemical reactions in non-membrane compartments. Recent evidence has shown that many of these compartments are liquids that form by phase separation from the cytoplasm. Here we discuss the basic physical concepts necessary ...Read More
The effect of a luteinizing hormone-releasing hormone antagonist on experimental endometriosis in the rat (1987)

The effect of a Salk LRH analogue (Antagonist I) on growth of endometrial explants in the intact female rat was studied. Subcutaneous injection of the analogue was begun 3 weeks after transplantation of a section of endometrium to the peritoneal wall. The animals were laparotomized and the volume of the explant (length X width X height) in mm was measured with calipers on day 1 of treatment. The animals were injected daily for 3 weeks with 50, 250 or 500 micrograms of Antagonist I at which time the animals were again laparotomized and the volume of the explant measured. Eight weeks after cessation of treatment the animals were sacrificed and the volume of the explant measured. The degree of inhibition of explant growth was directly correlated with the amount of Antagonist I administered; a significant inhibition was obtained with doses of 250 or 500 micrograms. Eight weeks after cessation of treatment all explants demonstrated renewed growth, although explants in rats which had been treated with 250 or 500 micrograms had returned to only 51 and 61% of their initial volume, respectively. The results of this study demonstrate the LRH antagonists may be useful in the treatment of endometriosis although at doses considerably higher than those of the super agonists.
Radioimmunoassay for Cyclic Nucleotides (1972)

Abstract Cyclic adenosine 3',5'-monophosphate (cAMP) and cyclic guanosine 3',5'-monophosphate (cGMP) were measured in mammalian tissues and fluids by radioimmunoassay in a variety of physiological and pharmacological conditions. Basal concentrations and responses to hormonal stimuli were in close agreement with results from previous studies using other assay techniques. Cyclic nucleotide phosphodiesterase treatment of urine and trichloroacetic acid extracts of various tissues completely destroyed the immunoreactive material in each assay except for a tissue blank in kidney, liver, and skeletal muscle of 24%, 40%, and 15%, respectively, in the cGMP assay. The nature of this cross-reacting substance has not been identified. Hormonal stimuli causing marked increases in cAMP in vivo or in vitro did not affect the level of cGMP, indicating that the concentration of each of these nucleotides is controlled independently. Adrenalectomy caused an increase in cGMP in skeletal muscle, but did not affect cAMP in this or other tissues. The concentration of cGMP in skeletal muscle from adrenalectomized rats reverted toward normal after treatment with dexamethasone. Adenylate cyclase and guanylate cyclase activities in subcellular fractions were estimated by immunoassay of the amount of cAMP and cGMP formed from ATP and GTP, respectively. The high specificity and sensitivity of the cAMP and cGMP immunoassays allowed detection of cyclic nucleotide in the supernatant of the reaction mixture without prior concentration or separation procedures. No difference in adenylate cyclase activity in liver plasma membranes was observed between this technique and that of measuring conversion of [α-32P]ATP to [32P]cAMP. Guanylate cyclase activity was detectable in soluble fractions from liver and renal cortex and was not affected by glucagon, dexamethasone, thyroxine, or sodium fluoride added in vitro.
Splints and casts: indications and methods. (2009)

Management of a wide variety of musculoskeletal conditions requires the use of a cast or splint. Splints are noncircumferential immobilizers that accommodate swelling. This quality makes splints ideal for the management of a variety of acute musculoskeletal conditions in which swelling is anticipated, such as acute fractures or sprains, or for initial stabilization of reduced, displaced, or unstable fractures before orthopedic intervention. Casts are circumferential immobilizers. Because of this, casts provide superior immobilization but are less forgiving, have higher complication rates, and are generally reserved for complex and/or definitive fracture management. To maximize benefits while minimizing complications, the use of casts and splints is generally limited to the short term. Excessive immobilization from continuous use of a cast or splint can lead to chronic pain, joint stiffness, muscle atrophy, or more severe complications (e.g., complex regional pain syndrome). All patients who are placed in a splint or cast require careful monitoring to ensure proper recovery. Selection of a specific cast or splint varies based on the area of the body being treated, and on the acuity and stability of the injury. Indications and accurate application techniques vary for each type of splint and cast commonly encountered in a primary care setting. This article highlights the different types of splints and casts that are used in various circumstances and how each is applied.
Pi2 pulsations observed from the Polar satellite outside the plasmapause (2005)

Recently, Lee and Lysak (1999) suggested that Pi2 pulsations in the inner magnetosphere originate from plasmaspheric virtual resonances (PVR). The PVR model predicts that Pi2 pulsations are not strictly localized to the plasmasphere. Until now there have been no spacecraft observations of the PVR mode outside the plasmasphere. Motivated by the theoretical work, we examine Pi2 pulsations simultaneously observed by the Polar satellite outside the plasmapause and at the low‐latitude Kakioka ( L = 1.3) station. We identify 14 events to have high coherence (> 0.7) between the compressional component ( b z ) in space and the horizontal component ( H ) at Kakioka during a 2‐month period in 1997. The H ‐ b z cross phase is ∼180° regardless of the satellite's distance from the plasmapause. The amplitude of the Pi2 pulsations tends to decrease with the distance. On the basis of these observations, we conclude that the PVR mode is an appropriate model for our Pi2 events observed outside the plasmasphere.