gebhart/patrepeval huggingface dataset:
A Data Warehouse to Support Condition Based Maintenance (CBM) (2005)

Abstract : The United States Army's legacy strategy for its helicopter fleet is centered on replacing and repairing components on aircraft hours flown. This strategy overlooks how variations in environmental conditions, component stresses, and other exogenous factors effect the lifetime of specific components across the entire fleet of Army Aviation Aircraft. This report describes the design and implementation of a data warehouse that subsumes many disparate databases currently housing information about these factors. This data warehouse supports a common synchronized maintenance picture that includes state, health, usage, and logistics data for any component on any helicopter in the fleet. This view enables researchers and planners to individually manage component according to a condition based policy. This report discusses a systems engineering approach to creating a data warehouse including logical and physical designs, data management strategies, and an implementation plan. Discussion is also included detailing how the warehouse might be adopted for condition-based of all Army systems.
Base-emitter injection characterization in low-temperature pseudo-heterojunction bipolar transistors (1990)

Carrier injection characteristics in a pseudo-heterojunction bipolar transistor (pseudo-HBT) are clarified both theoretically and experimentally. It is found that a low-concentration external-base structure completely rejects carrier injections and selectively injects electrons into the intrinsic base at low temperatures. This unique property inherent in low-temperature operation is verified in an experimental pseudo-HBT. Based on the results, the vertical and horizontal scaling rules for pseudo-HBTs are clarified. The analysis reveals that the low-temperature bipolar transistor has a very small emitter- and external-base charging time, which allows excellent vertical and horizontal scalability for superior to that of conventional room-temperature transistors.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Multi Objective Optimization of Cloud Computing Services for Consumers (2017)

This paper presents a novel multi objective model for optimizing the purchase decision of a cloud computing services customer. The providers are typically offering consumers cloud computing varying information systems services. The cloud services consist of different functionalities at varying costs, and varying reliability. So the customer’s main objectives (based on the literature) are to maximize their utility, and minimize their costs and risks. Since utility cost and risks are different dimensions, the problem is essentially a multi-objective optimization problem. So far, previous research does not address the multi objective nature of the problem. This article deals with optimizing consumers’ decision, but at the same time maintaining each of their objectives’ considerations. An optimization model presented and illustrated. The article also demonstrates the advantages gained by the optimization model when implemented using the dynamic cloud architecture over the traditional cloud architecture.
Development and validation of a deep learning algorithm detecting 10 common abnormalities on chest radiographs (2020)

We aimed to develop a deep learning algorithm detecting 10 common abnormalities (DLAD-10) on chest radiographs, and to evaluate its impact in diagnostic accuracy, timeliness of reporting and workflow efficacy.DLAD-10 was trained with 146 717 radiographs from 108 053 patients using a ResNet34-based neural network with lesion-specific channels for 10 common radiological abnormalities (pneumothorax, mediastinal widening, pneumoperitoneum, nodule/mass, consolidation, pleural effusion, linear atelectasis, fibrosis, calcification and cardiomegaly). For external validation, the performance of DLAD-10 on a same-day computed tomography (CT)-confirmed dataset (normal:abnormal 53:147) and an open-source dataset (PadChest; normal:abnormal 339:334) was compared with that of three radiologists. Separate simulated reading tests were conducted on another dataset adjusted to real-world disease prevalence in the emergency department, consisting of four critical, 52 urgent and 146 nonurgent cases. Six radiologists participated in the simulated reading sessions with and without DLAD-10.DLAD-10 exhibited area under the receiver operating characteristic curve values of 0.895-1.00 in the CT-confirmed dataset and 0.913-0.997 in the PadChest dataset. DLAD-10 correctly classified significantly more critical abnormalities (95.0% (57/60)) than pooled radiologists (84.4% (152/180); p=0.01). In simulated reading tests for emergency department patients, pooled readers detected significantly more critical (70.8% (17/24) <i>versus</i> 29.2% (7/24); p=0.006) and urgent (82.7% (258/312) <i>versus</i> 78.2% (244/312); p=0.04) abnormalities when aided by DLAD-10. DLAD-10 assistance shortened the mean±sd time-to-report critical and urgent radiographs (640.5±466.3 <i>versus</i> 3371.0±1352.5 s and 1840.3±1141.1 <i>versus</i> 2127.1±1468.2 s, respectively; all p<0.01) and reduced the mean±sd interpretation time (20.5±22.8 <i>versus</i> 23.5±23.7 s; p<0.001).DLAD-10 showed excellent performance, improving radiologists' performance and shortening the reporting time for critical and urgent cases.
A Feasibility Study of Identifying Weather by Laser Forward Scattering (1978)

The possibility of identifying weather through the observation of forward scatter of a laser beam has been investigated. Preliminary observations with a prototype instrument suggest that it is possible to distinguish clear air, rain, snow, hail and fog using laser weather identification. After additional measurements are made in various weather conditions, it should be practical to design a simple automatic instrument to provide such information.
Flood Risk Mapping In New Brunswick: A Decade Review (1989)

On March 31, 1976, New Brunswick became the first Province to enter into an Agreement with the Federal Government with respect to the reduction of flood damages along rivers, lakes and the sea. Under the terms of this Agreement, flood risk mapping, comprising 183 maps, has been completed for eight flood plain areas in New Brunswick. The achievements of the New Brunswick flood risk mapping program are summarized in this paper, and the uses being made of the flood risk maps are identified. The rationale used to identify and priorize candidate areas for flood risk mapping is provided. The procedures used to produce flood risk maps are outlined along with an assessment of the accuracy achieved. Finally the costs associated with the Program are summarized.
Particle size of wyoming bentonite and its relation to the cation exchange capacity and the homogeneity of the charge density (1976)

A correlation exists between the particle size and the cation exchange capacity (c.e.c.) of bentonite clay. Smaller particles have a lower c.e.c. and a more homogenous charge distribution. The presence of iron-oxides, acting as a cementing agent, affects the observation of this phenomenon.Homogeneously charged bentonite samples can be prepared by fractionation on the basis of particle size.
Recent results of the second generation of vector vortex coronagraphs on the high-contrast imaging testbed at JPL (2011)

The Vector Vortex Coronagraph (VVC) is an attractive internal coronagraph solution to image and characterize exoplanets. It provides four key pillars on which efficient high contrast imaging instruments can be built for ground- and space-based telescopes: small inner working angle, high throughput, clear off-axis discovery space, and simple layout. We present the status of the VVC technology development supported by NASA. We will review recent results of the optical tests of the second-generation topological charge 4 VVC on the actively corrected High Contrast Imaging Testbed (HCIT) at the Jet Propulsion Laboratory (JPL). New VVC contrast records have been established.
ON THE REGULARITY AND THE HOLOMORPHICAL REGULARITY (1999)

In this paper, we introduce the regularity, the hyperexactness and the hyperregularity, and we study on the extensions of regularity and the holomorphical regularity of the bounded linear operators.
Shu-Yu capsule, a Traditional Chinese Medicine formulation, attenuates premenstrual syndrome depression induced by chronic stress constraint (2014)

The present study aimed to investigate the therapeutic effect of the Shu-Yu capsule (SYC), a Traditional Chinese Medicine formulation, on premenstrual syndrome (PMS) depression and the ratio of glutamate (Glu) to γ-aminobutyric acid (GABA) in a rat model of PMS depression. Rats were randomly divided into a control group, model group, fluoxetine group, SYC group and saikosaponins (SS) group. The therapeutic effect of SYC was evaluated using a sucrose preference test (SPT), open field test (OFT) and body mass following four days of treatment. Hippocampal extracellular fluid was collected by microdialysis and the levels of Glu and GABA in the microdialysate were measured by high performance liquid chromatography. The results revealed that, compared with the control group, the sucrose preference coefficient (SC%), total score of OFT and body mass of the model group were significantly lower (P<0.01, P<0.05 and P<0.01, respectively). However, the sucrose preference coefficient, total score of OFT and body mass of the SYC group were all significantly increased compared with the model group (P<0.05). Furthermore, SYC inhibited the decrease of the Glu/GABA ratio in the hippocampus of rats with PMS depression. It was concluded that SYC effectively improved the symptoms of PMS depression, possibly by inhibiting the dysregulation of the Glu/GABA balance in the central nervous system.
Analysis of the Function of a Putative 2,3-Diphosphoglyceric Acid-Dependent Phosphoglycerate Mutase from <i>Bacillus subtilis</i> (2000)

A Bacillus subtilis gene termed yhfR encodes the only B. subtilis protein with significant sequence similarity to 2, 3-diphosphoglycerate-dependent phosphoglycerate mutases (dPGM). This gene is expressed at a low level during growth and sporulation, but deletion of yhfR had no effect on growth, sporulation, or spore germination and outgrowth. YhfR was expressed in and partially purified from Escherichia coli but had little if any PGM activity and gave no detectable PGM activity in B. subtilis. These data indicate that B. subtilis does not require YhfR and most likely does not require a dPGM.
Meson masses in electromagnetic fields with Wilson fermions (2018)

We determine the light meson spectrum in QCD in the presence of background magnetic fields using quenched Wilson fermions. Our continuum extrapolated results indicate a monotonous reduction of the connected neutral pion mass as the magnetic field grows. The vector meson mass is found to remain nonzero, a finding relevant for the conjectured $\ensuremath{\rho}$-meson condensation at strong magnetic fields. The continuum extrapolation was facilitated by adding a novel magnetic field--dependent improvement term to the additive quark mass renormalization. Without this term, sizable lattice artifacts that would deceptively indicate an unphysical rise of the connected neutral pion mass for strong magnetic fields are present. We also investigate the impact of these lattice artifacts on further observables like magnetic polarizabilities and discuss the magnetic field--induced mixing between $\ensuremath{\rho}$-mesons and pions. We also derive Ward-Takashi identities for $\mathrm{QCD}+\mathrm{QED}$ both in the continuum formulation and for (order $a$--improved) Wilson fermions.
ATP Recognition and sensing with a phenanthroline-containing polyammonium receptor (2006)

A new polyammonium receptor is able to selectively recognise and sense ATP among triphosphate nucleotides, thanks to ATP-induced quantitative quenching of its fluorescence emission.
A mutation in the promoter of the chicken β,β-carotene 15,15′-monooxygenase 1 gene alters xanthophyll metabolism through a selective effect on its mRNA abundance in the breast muscle1 (2012)

A polymorphism in the promoter of the β,β-carotene 15,15'-monooxygenase 1 (BCMO1) gene recently was identified in an experimental cross between 2 chicken lines divergently selected on growth rate and found to be associated with variations in the yellow color of the breast meat. In this study, the effects of the polymorphism on several aspects of carotenoid metabolism were evaluated in chickens sharing the same genetic background except for their genotype at the BCMO1 locus. We confirmed that BCMO1 mRNA abundance varied (P < 0.001) between the 2 homozygous genotypes (GG << AA) and in the pectoralis major muscle. By contrast, BCMO1 mRNA expression was not affected (P > 0.05) by the polymorphism in the duodenum, liver, or sartorius muscle. The breast meat of GG chickens was more (P < 0.001) yellow and richer in lutein (P < 0.01) and zeaxanthin (P < 0.05) compared to that of AA chickens whereas these variables did not differ (P > 0.05) in the other tissues tested. The GG were also characterized by reduced (P < 0.01) plasma lutein and zeaxanthin concentrations than AA without affecting plasma and tissue content of fat-soluble vitamins A and E. As lutein and zeaxanthin are usually not considered as substrates of the BCMO1 enzyme, the impact of BCMO1 polymorphism on the activity of other genes involved in carotenoid transport (SCARB1 and CD36 encoding the scavenger receptor class B type I and the cluster determinant 36, respectively) and metabolism (BCDO2 encoding β,β-carotene 9',10'-dioxygenase 2) was evaluated. The BCMO1 polymorphism did not affect mRNA abundance of BCDO2, SCARB1, or CD36, regardless of tissue considered. Taken together, these results indicated that a genetic variant of BCMO1 specifically changes lutein and zeaxanthin content in the chicken plasma and breast muscle without impairing vitamin A and E metabolism.
Atomic force microscopy contact, tapping, and jumping modes for imaging biological samples in liquids (2004)

The capabilities of the atomic force microscope for imaging biomolecules under physiological conditions has been systematically investigated. Contact, dynamic, and jumping modes have been applied to four different biological systems: DNA, purple membrane, Alzheimer paired helical filaments, and the bacteriophage phi29. These samples have been selected to cover a wide variety of biological systems in terms of sizes and substrate contact area, which make them very appropriate for the type of comparative studies carried out in the present work. Although dynamic mode atomic force microscopy is clearly the best choice for imaging soft samples in air, in liquids there is not a leading technique. In liquids, the most appropriate imaging mode depends on the sample characteristics and preparation methods. Contact or dynamic modes are the best choices for imaging molecular assemblies arranged as crystals such as the purple membrane. In this case, the advantage of image acquisition speed predominates over the disadvantage of high lateral or normal force. For imaging individual macromolecules, which are weakly bonded to the substrate, lateral and normal forces are the relevant factors, and hence the jumping mode, an imaging mode which minimizes lateral and normal forces, is preferable to other imaging modes.
Impact of planar microcavity effects on light extraction-Part I: basic concepts and analytical trends (1998)

We address the long-standing issue of extracting light as efficiently as possible from a high-index material, n/spl ges/2, where as little as 2%-10% of light not suffering total internal reflection is extracted at standard plane faces due to the small critical angle /spl sim/1/n. Using a planar microcavity to redirect spontaneous emission toward the surface, constructive interferences can bring 15%-50% of the light out, enhancing brightness and efficiency. In this first of two papers, an approximate approach is used showing the importance of small cavity order m/sub c/ and of the m/sub c//n/sup 2/ ratio. We define a condition for microcavity regime as m/sub c/<2n/sup 2/. It is shown that most of light extraction is usually attained for moderate mirror reflectivities /spl sim/1-m/sub c//n/sup 2/ typically below 90%, and without strong directionality. Balance between emission directionality, radiance (brightness), and spectral narrowing is discussed. We define a brightness enhancement factor B given by Bm/sub c//spl Delta//spl Omega/=4/spl pi/ where /spl Delta//spl Omega/ is the largest internal solid angle of either the cavity mode or that deduced from the material emission linewidth. Design rules are applied to distributed dielectric mirrors yielding an optimal number of periods. The underlying physical competition between emission into guided modes, Fabry-Perot modes and the so-called "leaky modes" is analyzed.
Discovery and Retrieval of Logical Information Units in Web. (1999)

In ordinary search engines for Web pages, the data unit for query processing is individual pages. Indexes are produced for each page in accordance with the words appearing in it. In actual Web data, however, a logical document discussing one topic is often organized into a set of pages connected via links provided by the page author as &quot;standard navigation routes.&quot; In such a situation, conjunctive queries with multiple keywords may fail to retrieve an appropriate document if those keywords appear in different pages within that document. Therefore, a data unit for Web data retrieval should not be a page but should be a connected subgraph corresponding to one logical document. In this paper, we develop new techniques for discovering and retrieving the logical information units in Web data. As in some previous researches, we adopt minimal subgraph semantics for conjunctive queries. In our approach, when given a conjunctive query, we try to approximate information units including all the given keywords in the following three steps: (1) we distinguish standard route links from the others, (2) we find minimal subgraphs connected via those links and including all the keywords, and (3) we compute the score of each subgraph based on the locality of the keywords within it in order to examine whether it is really a logical information unit relevant to the query.
Role of Herpes simplex Virus Thymidine Kinase Expression in Viral Pathogenesis and Latency (1991)

Herpes simplex virus (HSV) thymidine kinase (TK) expression and the HSV TK gene have been evaluated in studies of gene control, as well as in animal and human studies of viral pathogenesis, including HSV latency. In investigations of the biological role of HSV TK, enzyme expression was noted to be important for HSV infection of nonreplicating cells in culture; and, in experimental animal studies, HSV TK was shown to be important for in vivo latent infection of sensory ganglion neurons. Latency in these studies was determined by the ability of HSV to reactivate from sensory ganglion explants. In recent studies, investigators sought to determine whether the role HSV TK expression plays in latency is primarily in the establishment and maintenance of latency or in the reactivation process. Following infection of experimental animals with HSV TK-deficient mutants, the presence of HSV in ganglia was detected in complementation, rescue, and molecular biological studies. Results suggest that HSV TK expression may be important for HSV reactivation from latency. This was supported by in situ hybridization investigations. In the latter studies, HSV latency associated transcript (LAT) was present in ganglion neurons, although reactivation of HSV from such ganglia was defective. LAT-expressing, reactivation-defective infections established by TK mutants of HSV are considered examples of incomplete latency. From the present review, it appears that HSV TK expression, particularly TK expression of HSV-1, is important for the reactivation of latent HSV infection of sensory ganglion neurons, probably because of limited neuronal TK expression and absent replication capacity of these cells.
Association Between Genetic Polymorphism of Milk Proteins and Production Traits During Three Lactations (1990)

Abstract Polymorphic forms of α s1 casein, β-casein, κ-casein, and β-lactoglobulin were used as genetic markers for milk yield, percentages of fat, and percentages protein during three lactations in 546 Quebec Holstein herds. β-Casein A2A2 cows produced more milk of lower fat content than β-casein A1A1 cows for the first, second, and third lactation. α S1 -Casein types affected milk yield in the second lactation only (BB>AB>BC). Protein content of milk was influenced by phenotypes of κ-casein and β-lactoglobulin for all three lactations. The replacement of A by B allele at the κ-casein locus would increase protein levels in milk by .08, .06, and .04%, respectively, for the first, second, and third lactation. Similarly, replacement of B by A allele at the β-lactoglobulin locus is followed by an increase of .05, .07, and .08% protein for the 3 lactation periods. Because of the relatively low frequency of κcasein B gene (24%) and moderately low frequency of β-lactoglobulin A gene (35%) in the Holstein population, it is possible to increase the protein in milk by proper selection of genetic variants.
Introductory remarks (1989)

Conference Article| October 01 1989 Introductory remarks HARISH M. PATEL HARISH M. PATEL 1Department of Biochemistry, Charing Cross and Westminster Medical School, Fulham Palace Road, London W6 8RF, U.K. Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd Received: March 16 1989 Online ISSN: 1470-8752 Print ISSN: 0300-5127 © 1989 Biochemical Society1989 Biochem Soc Trans (1989) 17 (5): 931. https://doi.org/10.1042/bst0170931 Article history Received: March 16 1989 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation HARISH M. PATEL; Introductory remarks. Biochem Soc Trans 1 October 1989; 17 (5): 931. doi: https://doi.org/10.1042/bst0170931 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 ContentAll JournalsBiochemical Society Transactions Search Advanced Search This content is only available as a PDF. © 1989 Biochemical Society1989 Article PDF first page preview Close Modal You do not currently have access to this content.
On detecting bridges causing timing failures (2003)

High resistance bridges (resistive bridges) are becoming more common. Such bridges cause speed failures. Published experimental results show that current tests are not good at detecting such defects. The following results, pertinent to resolving the above issue, are presented: mechanisms by which bridges cause speed failure; identification of non-classical transition tests for such bridges; and the usefulness and pitfalls of using low voltage testing to detect such bridges.
Time-Series Forecasting (2000)

From the author of the bestselling "Analysis of Time Series," Time-Series Forecasting offers a comprehensive, up-to-date review of forecasting methods. It provides a summary of time-series modelling procedures, followed by a brief catalogue of many different time-series forecasting methods, ranging from ad-hoc methods through ARIMA and state-space