gebhart/patrepeval huggingface dataset:
Data reduction by partial preaggregation (2003)

Partial preaggregation is a simple data reduction operator that can be applied to aggregation queries. Whenever we group and aggregate on a column set G, we can preaggregate on any column set that functionally determines G. Preaggregation can be used, for example, to reduce the input size to a join. Regular aggregation reduces the input to one record per group. Partial preaggregation exploits the fact that preaggregation need not be complete-if multiple records happen to be output for a group, they will be combined into the same group by the final aggregation. This paper describes a straightforward hash-based algorithm for partial preaggregation, discusses where it can be applied, and derives a mathematical model for estimating the output size. The effectiveness of the technique and the accuracy of the model are shown on both artificial and real data. It is also shown how to reduce memory requirements by combining partial preaggregation with the input phase of a subsequent join or sort operator. Partial preaggregation has been implemented, in part, in Microsoft SQL Server.
Intrusion‐aware trust model for vehicular ad hoc networks (2013)

Abstract In vehicular ad hoc networks, peers make decisions on the basis of the information provided by the other peers. If the received information is fake, then the result could be catastrophic, such as road accidents. Therefore, many researchers use the concept of trust to evaluate the trustworthiness of the received data. However, existing trust management schemes (proposed so far for the vehicular networks) are suffered from various limitations. For example, some schemes measure trust on the basis of the history of interactions, which is infeasible for vehicular networks due to its ephemeral nature. Also, none of the existing schemes operate in an identity anonymous environment. In order to overcome these limitations, we propose a novel trust management scheme for identity anonymous vehicular ad hoc networks. The proposed method is simple and completely decentralized that makes it easy to implement in the vehicular networks. Also, we prove that the proposed method is not only robust, but it also detects false location and time information. Furthermore, it introduces linear time complexity, which makes it suitable to use in real time. Copyright © 2013 John Wiley & Sons, Ltd.
Ecologically Sustainable Organizations: An Institutional Approach (1995)

Our main objective in this article is to join the growing group of green organization theorists by demonstrating the usefulness of institutional theory as an approach to ecologically sustainable organizations. Institutional theory helps to understand how consensus is built around the meaning of sustainability and how concepts or practices associated with sustainability are developed and diffused among organizations. We extend institutional theory by offering hypotheses in four different areas: (a) the incorporation of values into organizational sustainability, (b) the study of institutions as distinct elements within systems, (c) the study of institutions as distinct spheres, and (d) the construction of paradigms that support organizational sustainability. We then offer possible modifications to institutional theory that are suggested by the extension to a new area of study. Among them are the consideration of natural constraints on sense making and paradigm construction, the study of regional networks, and the recognition of the role of individual actors. Finally, we discuss possible avenues for future research by drawing on research that we are currently conducting.
Isolation of Four New Cyclic Depsipeptides, Antanapeptins A−D, and Dolastatin 16 from a Madagascan Collection of <i>Lyngbya </i><i>m</i><i>ajuscula</i> (2001)

Examination of a Lyngbya majuscula collection from Antany Mora, Madagascar, led to the isolation of dolastatin 16 (5), a promising antineoplastic metabolite first reported from the marine mollusc Dolabella auricularia. In addition, a new series of depsipeptides, antanapeptins A-D (1-4), were discovered. Their structures were deduced by 2D NMR and mass spectrometry and are analogous to the molluscan kulomo'opunalides and the recently reported cyanobacterial metabolites, georgamide and the yanucamides. The antanapeptins were evaluated in several biological assays; however, this series did not exhibit activity.
Red blood cell alloantibody frequency, specificity, and properties in a population of male military veterans (2008)

Military veterans have a relatively high prevalence of RBC alloantibodies, including anti-D, despite a large male predominance and lack of pregnancy-related alloimmunization. Alloantibody prevalence was highest in World War II veterans. The majority of male alloantibodies reacted with AG, even those traditionally considered to be clinically insignificant.
Using Spontaneous Eye-blink Rates to Predict the Motor Status of Patients with Parkinson's Disease (2019)

Objective Assessing daily motor fluctuations is an important part of the disease management for patients with Parkinson's disease (PD). However, the frequent recording of subjective and/or objective assessments is not always feasible, and easier monitoring methods have been sought. Previous studies have reported that the spontaneous eye-blink rate (EBR) is correlated with the dopamine levels in the brain. Thus, the continuous monitoring of the EBR may be useful for predicting the motor status in patients with PD. Methods Electrooculograms (EOGs) were recorded for up to 7.5 hours from three PD patients using a wearable device that resembled ordinary glasses. An receiver operating characteristic (ROC) analysis was performed to compare the ability of the EBR estimates at each time-point (Blink Index) and the plasma levodopa levels to predict the motor status. Results The Blink Index was correlated with the plasma levodopa levels. When an indicator for the first hour of the observation period was included in the model, the Blink Index discerned wearing-off and dyskinesia as accurately as the plasma levodopa level. Conclusion Our study provides preliminary evidence regarding the utility of continuous EBR monitoring for the non-invasive evaluation of the motor status in patients with PD.
Foam Flow in Heterogeneous Porous Media: Effect of Cross Flow (1999)

Summary Previous experimental studies of foam generation and transport were conducted, mainly, in one-dimensional and homogeneous porous media. However, the field situation is primarily heterogeneous and multidimensional. To begin to bridge this gap, we have studied foam formation and propagation in an annularly heterogeneous porous medium. The experimental system was constructed by centering a 0.050 m diam cylindrical Fontainebleau sandstone core inside an 0.089 m acrylic tube and packing clean Ottawa sand in the annular region. The sandstone permeability is roughly 0.1 μm2 while the unconsolidated sand permeability is 6.7 μm2. Experiments with and without cross flow between the two porous media were conducted. To prevent cross flow, the cylindrical face of the sandstone was encased in a heat-shrink Teflon sleeve and the annular region packed with sand as before. Nitrogen is the gas phase and an alpha olefin sulfonate (AOS 1416) in brine is the foamer. The aqueous phase saturation distribution is garnered using X-ray computed tomography (CT). Results from this study are striking. When the heterogeneous layers are in capillary communication and cross flow is allowed, foam fronts move at identical rates in each porous medium as quantified by the CT-scan images. Desaturation by foam is efficient and typically complete in about 1 PV of gas injection. When cross flow is prohibited, foam partially plugs the high permeability sand and diverts flow into the low permeability sandstone. The foam front moves through the low permeability region faster than in the high permeability region.
Incident Atrial Fibrillation Is Associated With <i>MYH7</i> Sarcomeric Gene Variation in Hypertrophic Cardiomyopathy (2018)

Background Although atrial fibrillation (AF) is common in hypertrophic cardiomyopathy (HCM) patients, the relationship between genetic variation and AF has been poorly defined. Characterizing genetic subtypes of HCM and their associations with AF may help to improve personalized medical care. We aimed to investigate the link between sarcomeric gene variation and incident AF in HCM patients. Methods and Results Patients from the multinational Sarcomeric Human Cardiomyopathy Registry were followed for incident AF. Those with likely pathogenic or pathogenic variants in sarcomeric genes were included. The AF incidence was ascertained by review of medical records and electrocardiograms at each investigative site. One thousand forty adult HCM patients, without baseline AF and with likely pathogenic or pathogenic variation in either MYH7 (n=296), MYBPC3 (n=659), or thin filament genes (n=85), were included. Compared with patients with variation in other sarcomeric genes, those with MYH7 variants were younger on first clinical encounter at the Sarcomeric Human Cardiomyopathy Registry site and more likely to be probands than the MYBPC3 variants. During an average follow-up of 7.2 years, 198 incident AF events occurred. Patients with likely pathogenic or pathogenic mutations in MYH7 had the highest incidence of AF after adjusting for age, sex, proband status, left atrial size, maximal wall thickness, and peak pressure gradient (hazard ratio, 1.7; 95% CI, 1.1-2.6; P=0.009). Conclusions During a mean follow-up of 7.2 years, new-onset AF developed in 19% of HCM patients with sarcomeric mutations. Compared with other sarcomeric genes, patients with likely pathogenic or pathogenic variation in MYH7 had a higher rate of incident AF independent of clinical and echocardiographic factors.
Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation (2011)

The aim of this study was to test the hypothesis that in a short-term clinical pilot trial short-pulsed 9.6 μm CO(2)-laser irradiation significantly inhibits demineralization in vivo. Twenty-four subjects scheduled for extraction of bicuspids for orthodontic reasons (age 14.9 ± 2.2 years) were recruited. Orthodontic brackets were placed on bicuspids (Transbond XT, 3M). An area next to the bracket was irradiated with a CO(2)-laser (Pulse System Inc, Los Alamos, New Mexico), wavelength 9.6 μm, pulse duration 20 μs, pulse repetition rate 20 Hz, beam diameter 1100 μm, average fluence 4.1 ± 0.3J∕cm(2), 20 laser pulses per spot. An adjacent nonirradiated area served as control. Bicuspids were extracted after four and twelve weeks, respectively, for a quantitative assessment of demineralization by cross-sectional microhardness testing. For the 4-week arm the mean relative mineral loss ΔZ (vol% × μm) for the laser treated enamel was 402 ± 85 (mean ± SE), while the control showed significantly higher mineral loss (ΔZ 738 ± 131; P = 0.04, t-test). The difference was even larger after twelve weeks (laser arm ΔZ 135 ± 98; control 1067 ± 254; P = 0.002). The laser treatment produced 46% demineralization inhibition for the 4-week and a marked 87% inhibition for the 12-week arm. This study shows, for the first time in vivo, that the short-pulsed 9.6 μm CO(2)-laser irradiation successfully inhibits demineralization of tooth enamel in humans.
Limitations of intra-arterial thrombolysis (1997)

The purpose of this study was to assess the efficacy, costs and complications of acutely ischaemic limbs initially treated with urokinase-induced thrombolysis, and to compare the subsequent patencies of occluded native arteries, vein grafts and prosthetic grafts. Data from 45 consecutive episodes of thrombolysis in 37 patients (37 limbs) were reviewed retrospectively. An initial bolus dose of urokinase was used in all limbs, with pulse-spray in nine 30 limbs received additional infusions of urokinase including six who received initial treatment with pulse-spray. Percutaneous transluminal angioplasty or surgical intervention was undertaken at any stage when considered appropriate. There were 14 occluded native arteries (31%), 12 vein grafts (27%), 16 prosthetic polytetrafluoroethylene grafts (35%), and three composite grafts (7%). Thrombolysis was initially successful in 33 episodes (73%). Of these, no additional procedure was required in three, percutaneous transluminal angioplasty in 23, other surgery in 11 and bypass surgery in seven with more than one additional procedure being undertaken in 10. Of the 12 episodes with initial failure, major surgery was performed in eight and no procedure in four. Lysis-related complications occurred in 19 treatment episodes (42%) with major bleeding in seven (16%), minor bleeding in 10 (22%), distal embolization in 11 (24%) and arterial dissection in two (4%). One amputation (2%) and one death (2%), both directly attributable to thrombolysis, occurred within 1 month of treatment. Complications occurred in 10 of 19 (53%) prosthetic or composite grafts, five of 12 (42%) vein grafts, and four of 14 (29%) native artery occlusions (P = 0.38). The median follow-up of patients remaining alive was 24 months. The overall mean (s.e.m.)patency rate at 6 months of lysed vessels or replacement bypass grafts was 44% (8%). Presentation with a native artery and or graft occlusion was associated with superior long-term patency (any subsequent conduit) compared with presentation with an occluded prosthetic graft (log rank chi2[1] = 7.00, P = 0.008) and reflects the inferior run-off of the latter patients. The average cost of thrombolysis in radiological procedures and disposables alone excluding intensive care and complications was AUD$2440.
Aging Changes of the Midfacial Fat Compartments (2011)

This study demonstrates an inferior migration of the midfacial fat compartments and an inferior volume shift within the compartments during aging. Additional distinct compartment-specific changes (e.g., volume loss of the deep medial cheek fat and buccal extension of the buccal fat pad) contribute to the appearance of the aged face.
Microwave Semiconductor Switching Techniques (1958)

This paper describes new microwave techniques employing the properties of N-type germanium diode switches. For applications requiring very high isolations, multiple switches are added in tandem. With proper spacing, they form antiresonant cavity circuits. In this case the isolations and insertion losses in db are directly additive. A switch is described which is normally ON and is pulsed OFF. Finally, details are given of a switch in a hybrid-tee configuration in which switching isolations of 50 db are obtained with an insertion loss of 0.7 db.
Tumor Necrosis Factor α Regulatesα vβ5 Integrin Expression by Osteoclast Precursors in Vitro and in Vivo1 (2000)

Early osteoclast precursors, in the form of murine bone marrow macrophages (BMMs), while expressing no detectable alpha(v)beta3 integrin, contain abundant alpha(v)beta5 and attach to matrix in an alpha(v) integrin-dependent manner. Furthermore, alpha(v)beta5 expression by osteoclast precursors progressively falls as they assume the resorptive phenotype. We find the osteoclastogenic agent, tumor necrosis factor-alpha, (TNF) down-regulates alpha(v)beta5 expression by BMMS via attenuation of beta5 messenger RNA (mRNA) t1/2. Using BMMs from TNF receptor knockout mice we establish the p55 receptor transmits the beta5 suppressive effect. The functional implications of TNF-mediated alpha(v)beta5 down-regulation are underscored by the capacity of an alpha(v) inhibitory peptide mimetic to prevent spreading by BMMs expressing abundant alpha(v)beta5 while failing to impact those in which the integrin has been diminished by TNF. Finally, beta5 mRNA in BMMs of wild-type mice administered lipopolysaccharide (LPS) progressively falls with time of in vivo treatment. Alternatively, beta5 mRNA does not decline in BMMs of LPS-treated mice lacking both TNF receptors, documenting down-regulation of the beta5 integrin subunit, in vivo, is mediated by TNF. Thus, matrix attachment of osteoclast precursors and mature osteoclasts are governed by distinct alpha(v) integrins which are differentially regulated by specific cytokines.
Synthesis and Mechanical Properties of Nanostructured Mg-Al-Nd Alloys (2005)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
H2S Removal from Coal Gas at Elevated Temperature and Pressure in Fluidized Bed with Zinc Titanate Sorbents. 1. Cyclic Tests (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTH2S Removal from Coal Gas at Elevated Temperature and Pressure in Fluidized Bed with Zinc Titanate Sorbents. 1. Cyclic TestsWahab Mojtahedi and Javad AbbasianCite this: Energy Fuels 1995, 9, 3, 429–434Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pubs.acs.org/doi/10.1021/ef00051a006https://doi.org/10.1021/ef00051a006research-articleACS PublicationsRequest reuse permissionsArticle Views291Altmetric-Citations30LEARN 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
Dual Kinase Inhibition in the Treatment of Breast Cancer: Initial Experience with the EGFR/ErbB-2 Inhibitor Lapatinib (2004)

Dual inhibition of ErbB-1 (EGFR) and ErbB-2 (HER-2) tyrosine kinases has been found to exert greater biologic effects in the inhibition of signaling pathways promoting cancer cell proliferation and survival than inhibition of either receptor alone. The novel dual EGFR/ErbB-2 tyrosine kinase inhibitor lapatinib (GlaxoSmithKline; Research Triangle Park, NC) has been shown to inhibit tumor cell growth in vitro and in xenograft models for a variety of human tumors. Preliminary findings in a phase I study of lapatinib in patients with solid tumors indicate doses up to 1,800 mg per day are well tolerated. No grade 4 toxicities were observed and only two of 43 patients had grade 3 toxicity (diarrhea). Clinical activity of lapatinib was observed in these patients; nine patients with a variety of tumors remained on study for > or =4 months, one with a complete response (head and neck cancer). In a phase IB study in pretreated metastatic cancer patients with disease that could be biopsied, grade 1 or 2 diarrhea and rash were the most common adverse events. Three patients with breast cancer refractory to trastuzumab (Herceptin; Genentech, Inc.; South San Francisco, CA) had partial responses and 12 patients with a variety of tumors had stable disease. Assessment of biologic correlates in these patients indicates that increased tumor cell apoptosis on the terminal deoxynucleotide transferase-mediated dUTP nick-end labeling assay correlates with clinical response. Lapatinib currently is being evaluated in phase II and phase III trials in patients with metastatic breast cancer.
Development of high Mooney viscosity, homogeneous long-chain branched EPDM (2014)

A study was conducted to demonstrate the development of high Mooney viscosity, homogeneous long-chain branched EPDM. It was demonstrated that the design of EPDM for sponge bulb profiles was the most demanding of all applications in automotive weatherstrip. Developmental EPDM polymers made with an advanced postmetallocene catalyst system were produced in Dow's pilot plant to conduct the investigations. The polymers had monomer compositions of amorphous, high diene polymers containing 50-55 weight % ethylene, and 7-9 weight % of ENB where indicated paraffinic processing oil was included to facilitate processing and mixing. Melt rheology data shown were generated using small angle oscillatory shear performed using a TA Instruments ARES, equipped with '25 mm parallel plates' under a nitrogen purge. The experiments were performed at 190°C, over a frequency range from 0.1 to 100 rad/s. The EPDM polymers were evaluated to demonstrate the effects of homogeneous long-chain branching on the melt rheology and compounded rubber properties.
Long-term results of arthrocentesis as primary treatment for temporomandibular joint osteoarthrosis. (2003)

We used a combination of arthrocentesis, mouth opening exercises, and nansteroidal antiinflammatory drugs as a primary treatment for temporomandibular joint (TMJ) osteoarthrosis. This study evaluated the long-term results of this treatment by a mail questionnaire. Fifty patients with moderate and severe TMJ dysfunction who had TMJ unilateral osteoarthrosis were followed up from 1 year 6 months to 3 years 3 months (mean: 2 years 4 months) after the combined treatment. Of the 43 patients who returned the questionnaire, 37 (74%) had an acceptable outcome. Maximal mouth opening, pain on chewing, and pain on opening the mouth at the time of responding to the questionnaire were significantly better than those at time of finishing primary treatment. These results showed that stable effects were maintained after combined primary treatment.
Performance computation of cross-layer Hybrid ARQ schemes at IP layer in the presence of corrupted acknowledgments (2011)

Hybrid ARQ (HARQ) schemes operate at the PHY and Medium Access (MAC) layers and their performance have been naturally studied at the MAC level. However, all the modern systems are going to be running under the IP protocol. Therefore, in order to get realistic performance of the whole system considering the multiple layer stacks, performance analysis at the IP layer is crucial. Very little work has been done so far in this direction, except in [2] which studies the delay statistics of IP packets with Selective-Repeat ARQ, and [1] which proposes a cross-layer optimization strategy between MAC and IP layers for ARQ, and in [8], [9] which consider the HARQ case. In this paper, we study the effect of erroneous feedbacks at the MAC layer on the performance at the IP layer considering both conventional HARQ schemes as well as the cross-layer strategy mentioned above. We derive in closed-form expressions the performance in terms of packet error rate (PER), efficiency, and delay with respect to the error probability of the feedback channel.