gebhart/patrepeval huggingface dataset:
IEEE 802.11ah Restricted Access Window Surrogate Model for Real-Time Station Grouping (2018)

The Restricted Access Window (RAW) mechanism proposed by IEEE 802.11ah promises to address one of the major problems of the Internet of Things (IoT): high channel contention in large-scale densely deployed sensor networks. The RAW feature allows the Access Point (AP) to divide stations into different groups, with only the stations in the same group being allowed to access the channel simultaneously. Existing station grouping strategies only support homogeneous scenarios, where all sensor stations have the same fixed data transmission interval, modulation and coding scheme (MCS) and packet size. In this paper, we present two contributions to address this issue. First, a surrogate model that predicts RAW performance given specific network conditions and RAW configuration parameters. It is fast to train and can be solved in real-time. Second, the Model-Based RAW Optimization Algorithm (MoROA), which uses the surrogate model to determine the optimal RAW configuration in real-time, for heterogeneous stations and dynamic traffic. We compare the accuracy of our surrogate model to simulation results. Performance of MoROA is compared to existing RAW optimization algorithms and traditional 802.11 channel access methods. The results shows that the trained surrogate model can accurately predict RAW performance with a relative error less than 7% and 10% for 95% and 98% of the RAW configurations respectively. MoROA achieves a throughput up to twice as high as traditional 802.11 channel access functions in dense heterogeneous networks.
Rumor detection in social networks via deep contextual modeling (2019)

Fake news and rumors constitute a major problem in social networks recently. Due to the fast information propagation in social networks, it is inefficient to use human labor to detect suspicious news. Automatic rumor detection is thus necessary to prevent devastating effects of rumors on the individuals and society. Previous work has shown that in addition to the content of the news/posts and their contexts (i.e., replies), the relations or connections among those components are important to boost the rumor detection performance. In order to induce such relations between posts and contexts, the prior work has mainly relied on the inherent structures of the social networks (e.g., direct replies), ignoring the potential semantic connections between those objects. In this work, we demonstrate that such semantic relations are also helpful as they can reveal the implicit structures to better capture the patterns in the contexts for rumor detection. We propose to employ the self-attention mechanism in neural text modeling to achieve the semantic structure induction for this problem. In addition, we introduce a novel method to preserve the important information of the main news/posts in the final representations of the entire threads to further improve the performance for rumor detection. Our method matches the main post representations and the thread representations by ensuring that they predict the same latent labels in a multitask learning framework. The extensive experiments demonstrate the effectiveness of the proposed model for rumor detection, yielding the state-of-the-art performance on recent datasets for this problem.
Trustworthy Hardware: Identifying and Classifying Hardware Trojans (2010)

For reasons of economy, critical systems will inevitably depend on electronics made in untrusted factories. A proposed new hardware Trojan taxonomy provides a first step in better understanding existing and potential threats.
New antibodies as adjunctive therapies for Gram-positive bacterial meningitis (1989)

From the Rockefeller University, New York, NY. * Current address: Department of Infectious Diseases, College of Physicians and Surgeons, Columbia University, New York, NY.
Shallow Discourse Genre Annotation in CallHome Spanish (2000)

The classification of speech genre is not yet an established task in language technologies. However we believe that it is a task that will become fairly important as large amounts of audio (and video) data become widely available. The technological cability to easily transmit and store all human interactions in audio and video could have a radical impact on our social structure. The major open question is how this information can be used in practical and beneficial ways. As a first approach to this question we are looking at issues involving information accessto databasesof human-human interactions. Classification by genre is a first step in the process of retrieving a document out of a large collection. In this paper we introduce a local notion of speech activities that are exist side-by-side in conversations that belong to speech-genre: While the genre of CallHome Spanish is personal telephone calls between family members the actual instances of these calls contain activities such as...
Surgical approaches to the shoulder (1989)

The shoulder joint is perhaps the most complex joint in the body. Preserving function after a surgical procedure on the shoulder would seem to be difficult. For five common approaches to the shoulder, the application of priorities in shoulder surgery is discussed to illustrate how decisions have been made in the past and how new procedures should be designed. The priorities in shoulder surgery, in order of importance, are (1) to preserve tissue viability, (2) to preserve motor control of muscle tissue and maintain muscle geometry, (3) to achieve sufficient exposure, (4) to ensure postoperative cosmesis, and (5) to preserve skin sensations.
Intermittent fasting dissociates beneficial effects of dietary restriction on glucose metabolism and neuronal resistance to injury from calorie intake (2003)

Dietary restriction has been shown to have several health benefits including increased insulin sensitivity, stress resistance, reduced morbidity, and increased life span. The mechanism remains unknown, but the need for a long-term reduction in caloric intake to achieve these benefits has been assumed. We report that when C57BL6 mice are maintained on an intermittent fasting (alternate-day fasting) dietary-restriction regimen their overall food intake is not decreased and their body weight is maintained. Nevertheless, intermittent fasting resulted in beneficial effects that met or exceeded those of caloric restriction including reduced serum glucose and insulin levels and increased resistance of neurons in the brain to excitotoxic stress. Intermittent fasting therefore has beneficial effects on glucose regulation and neuronal resistance to injury in these mice that are independent of caloric intake.
Coherently Enhanced Wireless Power Transfer (2018)

Extraction of electromagnetic energy by an antenna from impinging external radiation is at the basis of wireless communications and wireless power transfer (WPT). The maximum of transferred energy is ensured when the antenna is conjugately matched, i.e., when it is resonant and it has an equal coupling with free space and its load. This condition, however, can be easily affected by changes in the environment, preventing optimal operation of a WPT system. Here, we introduce the concept of coherently enhanced WPT that allows us to bypass this difficulty and achieve dynamic control of power transfer. The approach relies on coherent excitation of the waveguide connected to the antenna load with a backward propagating signal of specific amplitude and phase. This signal creates a suitable interference pattern at the load resulting in a modification of the local wave impedance, which in turn enables conjugate matching and a largely increased amount of extracted energy. We develop a simple theoretical model describing this concept, demonstrate it with full-wave numerical simulations for the canonical example of a dipole antenna, and verify experimentally in both near-field and far-field regimes.
Crystal Structure and Conducting Property of a Metallic Charge-Transfer Complex Based on a Novel Tellurophene-Extended [3]Radialene Acceptor (1997)

Abstract A metallic charge-transfer complex of a novel tellurophene-extended [3]radialene type acceptor with TTF was prepared. The one-dimensional metallic conduction was proved to occur through the acceptor column by X-ray crystal analysis and thermoelectric power measurement.
A reference tristimulus colorimeter (2002)

A reference tristimulus colorimeter has been developed at NIST with a transmission-type silicon trap detector (1) and four temperature-controlled filter packages to realize the Commission Internationale de l'Eclairage (CIE) x(&lambda;), y(&lambda;) and z(&lambda;) color matching functions (2). Instead of lamp standards, high accuracy detector standards are used for the colorimeter calibration. A detector-based calibration procedure is being suggested for tristimulus colorimeters wehre the absolute spectral responsivity of the tristimulus channels is determined. Then, color (spectral) correct and peak (amplitude) normalization are applied to minimize uncertainties caused by the imperfect realizations of the CIE functions. As a result of the corrections, the chromaticity coordinates of stable light sources with different spectral power distributions can be measured with uncertainties less than 0.0005 (k=1).
The National Marrow Donor Program 20 Years of Unrelated Donor Hematopoietic Cell Transplantation (2008)

In the 20 years since the National Marrow Donor Program (NMDP) facilitated the first unrelated donor transplant, the organization has grown to include almost 7 million donors, and has facilitated over 30,000 transplants on 6 continents. This remarkable accomplishment has been facilitated by the efforts of over 600 employees, and an extensive international network including 171 transplant centers, 73 donor centers, 24 cord blood banks, 97 bone marrow collection centers, 91 apheresis centers, 26 HLA typing laboratories, and 26 Cooperative Registries. In this article, we review the history of the NMDP, and cite the major trends in patient demographics, graft sources, and conditioning regimens over the last 20 years.
Digitoxin mimics gene therapy with CFTR and suppresses hypersecretion of IL-8 from cystic fibrosis lung epithelial cells (2004)

Cystic fibrosis (CF) is a fatal, autosomal, recessive genetic disease that is characterized by profound lung inflammation. The inflammatory process is believed to be caused by massive overproduction of the proinflammatory protein IL-8, and the high levels of IL-8 in the CF lung are therefore believed to be the central mechanism behind CF lung pathophysiology. We show here that digitoxin, at sub nM concentrations, can suppress hypersecretion of IL-8 from cultured CF lung epithelial cells. Certain other cardiac glycosides are also active but with much less potency. The specific mechanism of digitoxin action is to block phosphorylation of the inhibitor of NF-kappa B (I kappa B alpha). I kappa B alpha phosphorylation is a required step in the activation of the NF-kappa B signaling pathway and the subsequent expression of IL-8. Digitoxin also has effects on global gene expression in CF cells. Of the informative genes expressed by the CF epithelial cell line IB-3, 58 are significantly (P < 0.05) affected by gene therapy with wild-type (CFTR CF transmembrane conductance regulator). Of these 58 genes, 36 (62%) are similarly affected by digitoxin and related active analogues. We interpret this result to suggest that digitoxin can also partially mimic the genomic consequences of gene therapy with CF transmembrane conductance regulator. We therefore suggest that digitoxin, with its lengthy history of human use, deserves consideration as a candidate drug for suppressing IL-8-dependent lung inflammation in CF.
Application of the DTM to Nonlinear Cases Arising in Fluid Flows with Variable Viscosity (2012)

This paper employs the dierential transformation method to investigate two nonlinear ordinary dierential systems for plane coquette ow having variable viscosity and thermal conductivity. The concept of dierential transformation is briey introduced, and then dierential transformation method is employed to derive solutions of nonlinear equation systems. The results of dierential transformation method are compared with those ones obtained by Adomian decomposition method to verify the accuracy of proposed method. The results reveal that the dierential transformation method can achieve suitable results in predicting the solution of such problems.
Associations of amyloid and neurodegeneration plasma biomarkers with comorbidities (2021)

Multiple variables affect plasma biomarkers of amyloid pathology and neurodegeneration among CU in the general population. Incorporating this information is critical for accurate interpretation of the biomarker levels and for the development of reference ranges.
Prolyl Endopeptidase from Flavobacterium meningosepticum: Cloning and Sequencing of the Enzyme Gene1 (1991)

The prolyl endopeptidase [EC 3.4.21.26] gene of Flavobacterium meningosepticum was cloned in Escherichia coli with the aid of an oligonucleotide probe which was prepared based on the amino acid sequence. The hybrid plasmid, pFPEP1, with a 3.5 kbp insert at the HincII site of pUC19 containing the enzyme gene, was subcloned into pUC19 to construct plasmid pFPEP3. The whole nucleotide sequence of an inserted HincII-BamHI fragment of plasmid pFPEP3 was determined by the dideoxy chain-terminating method. The purified prolyl endopeptidase was labeled with tritium DFP, and the sequence surrounding the reactive serine residue was found to be Ala (551)-Leu-Ser-Gly-Arg-*Ser-Asn(557). Ser-556 was identified as a reactive serine residue. The enzyme consists of 705 amino acid residues as deduced from the nucleotide sequence and has a molecular weight of 78,705, which coincides well with the value estimated by ultra centrifugal analysis. The amino acid sequence was 38.2% homologous to that of the porcine brain prolyl endopeptidase [Rennex et al. (1991) Biochemistry 30, 2195-2203] and 24.5% homologous to E. coli protease II, which has substrate specificity for basic amino acids [Kanatani et al. (1991) J. Biochem. 110, 315-320].
A Qualitative Analysis of a Caregivers’ Experience of Complementary Feeding in a Population of Native Hawaiian, Other Pacific Islander and Filipino Infants: The Timing of the Introduction of Complementary Foods, and the Role of Transgenerational Experience (2022)

The aim of this study was to investigate caregivers’ experiences of complementary feeding (CF) among the Native Hawaiian and Other Pacific Islander (NHPI), and Filipino populations. Research focused on the timing of CF commencement, and the influence of transgenerational experience on feeding practices. The experiences and practices of those who fed human milk exclusively (HME), were compared to those who included infant formula (F&HM). Caregivers of a subset of 32 infants who were participating in a larger longitudinal study relating to CF and diet diversity, took part in voluntary in-depth interviews relating to CF practices. Interviews were recorded and transcribed. Two researchers analyzed interview transcripts. Interrater reliability and saturation were established. Institutional Review Board exemption was confirmed prior to study commencement. Interviews with 29 caregivers of infants were included in this study. Only infants of the F&HM group had an early introduction to complementary foods (<4 months of age). Caregivers reported receiving conflicting advice from healthcare professionals (HCPs) in relation to timing of the introduction of complementary foods. Nonetheless, the majority of caregivers reported following the advice of HCPs. Extended family (including grandparents) played less of a role in infant feeding, compared to previous generations. While transgenerational practices were valued and included, ultimately, the perceived health and safety of the practice for infants influenced decisions.
NF-κB mediates lipid-induced fetuin-A expression in hepatocytes that impairs adipocyte function effecting insulin resistance (2010)

Fetuin-A, a hepatic secretory protein, has recently been implicated in insulin resistance and Type 2 diabetes. It is an endogenous inhibitor of insulin receptor tyrosine kinase. However, regulation of fetuin-A synthesis in relation to insulin resistance is unclear. In the present paper, we report that both non-esterified ('free') fatty acids and fetuin-A coexist at high levels in the serum of db/db mice, indicating an association between them. For an in-depth study, we incubated palmitate with HepG2 cells and rat primary hepatocytes, and found enhanced fetuin-A secretion to more than 4-fold over the control. Interestingly, cell lysates from these incubations showed overexpression and activity of NF-kappaB (nuclear factor kappaB). In NF-kappaB-knockout HepG2 cells, palmitate failed to increase fetuin-A secretion, whereas forced expression of NF-kappaB released fetuin-A massively in the absence of palmitate. Moreover, palmitate stimulated NF-kappaB binding to the fetuin-A promoter resulting in increased reporter activity. These results suggest NF-kappaB to be the mediator of the palmitate effect. Palmitate-induced robust expression of fetuin-A indicates the occurrence of additional targets, and we found that fetuin-A severely impaired adipocyte function leading to insulin resistance. Our results reveal a new dimension of lipid-induced insulin resistance and open another contemporary target for therapeutic intervention in Type 2 diabetes.
Substrate effects on the magnetic characteristics of sputtered media (1989)

The magnetic characteristics of C/CoNiCr/Cr longitudinal recording media on NiCuP-plated substrates and various Al-Mg alloy substrates were investigated and compared with the conventional NiP-plated substrates. It was found that the media on the NiCuP-plated substrates had a flatter envelope waveform. The error characteristics of the media directly sputter-deposited on the Al-Mg alloy substrate made from high-purity Al ground metal or by rapid solidification were almost the same as those of the media on the NiP substrates. The Al-Mg alloy substrate finished by electrolytic abrasive polishing exhibited a higher resistance to corrosion than that finished by diamond turning.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
The Cyclohexadienyl Radical in the Thermal Syn−Anti Isomerization of Two Crossed Pentaenes of the Type of Bis-Homofulvalene (1996)

To augment the elucidation of the dependence of enthalpy of stabilization on configuration among the pentadienyl radicals, a designer pentaene of the (Z,Z) type, (R,R)-5,5‘,6,6‘,7,7‘,8,8‘-octahydro-4a,4a‘-dimethyl-2,2‘-bi-4a(H)-naphthylidene, has been prepared and subjected to a kinetic study of cis, trans isomerization about its central double bond. The resulting activation parameters and those of a more complicated example, 3,3‘-bicholesta-1,4-dienylidene, are essentially identical, their mean values being ΔH⧧ = 36.8 kcal/mol and ΔS⧧ = +1.8 eu. This enthalpy of activation is significantly higher than those of pentaenes of the (E,E) and (E,Z) configuration. Conjugative interaction in coplanar cross-conjugated systems of the bis-homofulvalene type not having been experimentally evaluated or estimated by theoretical calculation, an enthalpy of stabilization for the cyclohexadienyl radical is not definitively to be extracted at the present time. If conjugative interactions are to be equated to four Kistiakowsky butadiene units and the difference in steric energies between educt and 90°-twisted state are to be estimated by the MMEVBH program, an enthalpy of stabilization of the cyclohexadienyl radical of ∼20 kcal/mol results.
Interregional Partnership of Russia as a Tool of Realization of National Priorities of its Economic Development (2015)

The analysis of interregional economic partnership existing simultaneously with the concept of traditional regionalism is proposed in the article. The cases of Trans-Pacific strategic economic partnership agreement (TPSEPA) which is created already for some decades; Transpacific agreement on strategic and economic partnership plan (2012), under which the US and the EU are going to form a Transatlantic FTA (TAFTA); initiative of Asia and Pacific countries (presented at the summit of these countries in 2012) to form a Regional comprehensive economic partnership (RCEP) are described. The case of BRICS is analyzed in details. The economic factors joining the countries - participants of the group are analyzed. The prospects of broadening of its partnership - with participation of economies of South America are highlighted. Russian external trade is touched by machinery production and accompanying services with the countries-partners mentioned. It’s shown that these economic relations can be used by Russia for solving of the tasks of substitution of import, neo-industrialization and export stimulating.
Detection of high-refractive index media by a surface plasmon sensor using a one-dimensional metal diffraction grating (2015)

We aim to detect high-refractive index media by substituting metal diffraction grating with a metal film. The advantages of this structure are miniaturization, wide-range detection, and versatility. The Au gratings were fabricated on a glass substrate by electron beam lithography and lift-off process. Using a 635 nm laser, we measured the dependence of reflectance on the light incident angle. At a grating period of 600 nm, the sensor detected 1-bromonaphthalene (refractive index n =1.65) and ethyl alcohol (n = 1.36).
Design for On-Sun Evaluation of Evaporator Receivers (2011)

A heat pipe designed for operation as a solar power receiver should be optimized to accept the solar energy flux and transfer this heat into a reactor. Optical properties of the surface, thermal conductance of the receiver wall, contact resistance of the heat pipe wick, and other heat pipe wick properties ultimately define the maximum amount of power that can be extracted from the concentrated sunlight impinging on the evaporator surface. Modeling of solar power receivers utilizing optical and physical properties provides guidance to their design. On-sun testing is another important means of gathering information on performance. A test rig is being designed and built to conduct on-sun testing. The test rig is incorporating a composite strip mirror concentrator developed as part of a Small Business Innovative Research effort and delivered to NASA Glenn Research Center. In the strip concentrator numerous, lightweight composite parabolic strips of simple curvature were combined to form an array 1.5 m x 1.5 m in size. The line focus of each strip is superimposed in a central area simulating a point of focus. A test stand is currently being developed to hold the parabolic strip concentrator, track the sun, and turn the beam downward towards the ground. The hardware is intended to be sufficiently versatile to accommodate on-sun testing of several receiver concepts, including those incorporating heat pipe evaporators. Characterization devices are also being developed to evaluate the effectiveness of the solar concentrator, including a receiver designed to conduct calorimetry. This paper describes the design and the characterization devices of the on-sun test rig, and the prospect of coupling the concentrated sunlight to a heat pipe solar power receiver developed as part of another Small Business Innovative Research effort.