gebhart/patrepeval huggingface dataset:
A robotic walker that provides guidance (2004)

This paper describes a robotic walker designed as an assistive device for frail elderly people with cognitive impairment. Locomotion is most often the primary form of exercise for the elderly, and devices that provide mobility assistance are critical for the health and well being of such individuals. Previous work on walkers focused primarily on safety but offered little or no assistance with navigation and global orientation. Our system provides these features in addition to the stability and support provided by conventional walkers. A software suite of robot localization and navigation combined with a shared-control haptic interface achieves this capability. The system has been tested in a retirement facility near Pittsburgh, PA, USA.
Extracellular polymeric substances responsible for bacterial adhesion onto solid surface (2003)

The influence of extracellular polymeric substances (EPS) on bacterial cell adhesion onto solid surfaces was investigated using 27 heterotrophic bacterial strains isolated from a wastewater treatment reactor. Cell adhesion onto glass beads was carried out by the packed-bed method and the results were discussed in terms of the amount of each EPS component produced and cell surface characteristics such as zeta potential and hydrophobicity. Protein and polysaccharides accounted for 75-89% of the EPS composition, indicating that they are the major EPS components. Among the polysaccharides, the amounts of hexose, hexosamine and ketose were relatively high in EPS-rich strains. For EPS-poor strains, the efficiency of cell adhesion onto glass beads increased as the absolute values of zeta potential decreased, suggesting that electrostatic interaction suppresses cell adhesion efficiency. On the other hand, the amounts of hexose and pentose exhibited good correlations with cell adhesiveness for EPS-rich strains, indicating that polymeric interaction due to the EPS covering on the cell surface promoted cell adhesion. It was concluded that, if the EPS amount is relatively small, cell adhesion onto solid surfaces is inhibited by electrostatic interaction, and if it is relatively large, cell adhesion is enhanced by polymeric interaction.
Locating passages using a case-base of excerpts (1998)

Article Free Access Share on Locating passages using a case-base of excerpts Authors: Jody J. Daniels Lockheed Martin, Advanced Technology, Laboratories, 1 Federal Street, Camden, NJ Lockheed Martin, Advanced Technology, Laboratories, 1 Federal Street, Camden, NJView Profile , Edwina L. Rissland Department of Computer Science, University of Massachusetts, Amherst, MA Department of Computer Science, University of Massachusetts, Amherst, MAView Profile Authors Info & Claims CIKM '98: Proceedings of the seventh international conference on Information and knowledge managementNovember 1998 Pages 38–44https://doi.org/10.1145/288627.288639Online:01 November 1998Publication History 3citation200DownloadsMetricsTotal Citations3Total Downloads200Last 12 Months5Last 6 weeks3 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my Alerts New Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
Nivel de ejecución del remate de potencia de pádel en alumnos de la universidad de Murcia (2013)

La finalidad del presente estudio es profundizar en las dificultades que se
estan encontrando los practicantes de padel a la hora de adquirir los aspectos
tecnicos de este nuevo deporte en expansion en Espana. La investigacion tiene
como objetivo principal el conocer el nivel de ejecucion de la tecnica del golpe de
remate o smash de potencia en el padel durante el desarrollo de una clase de nivel
de iniciacion. La muestra de la investigacion esta compuesta por 20 estudiantes de
la Universidad de Murcia de edades comprendidas entre los 20 y 25 anos, que
practican 2 veces por semana durante los ultimos 6 meses. Para conocer el nivel de
ejecucion de los sujetos se utilizo una hoja de observacion directa de 11 items que
evalua los elementos tecnicos de ejecucion del golpe de remate o smash de
potencia en el padel. Los resultados muestran que el nivel de ejecucion del gesto
tecnico del remate en el padel por parte de estudiantes de la Universidad de Murcia
es muy satisfactorio despues de 6 meses de clases con un monitor especializado.
Ademas, se aprecian diferencias significativas entre los varones y las mujeres,
siendo los primeros los que presentan un mayor nivel de habilidad.
Non-intrusive performance profiling for entire software stacks based on the flow reconstruction principle (2016)

Understanding the performance behavior of distributed server stacks at scale is non-trivial. The servicing of just a single request can trigger numerous sub-requests across heterogeneous software components; and many similar requests are serviced concurrently and in parallel. When a user experiences poor performance, it is extremely difficult to identify the root cause, as well as the software components and machines that are the culprits.This paper describes Stitch, a non-intrusive tool capable of profiling the performance of an entire distributed software stack solely using the unstructured logs output by heterogeneous software components. Stitch is substantially different from all prior related tools in that it is capable of constructing a system model of an entire software stack without building any domain knowledge into Stitch. Instead, it automatically reconstructs the extensive domain knowledge of the programmers who wrote the code; it does this by relying on the Flow Reconstruction Principle which states that programmers log events such that one can reliably reconstruct the execution flow a posteriori.
Prediction Error Associated with the Perceptual Segmentation of Naturalistic Events (2011)

Predicting the near future is important for survival and plays a central role in theories of perception, language processing, and learning. Prediction failures may be particularly important for initiating the updating of perceptual and memory systems and, thus, for the subjective experience of events. Here, we asked observers to make predictions about what would happen 5 sec later in a movie of an everyday activity. Those points where prediction was more difficult corresponded with subjective boundaries in the stream of experience. At points of unpredictability, midbrain and striatal regions associated with the phasic release of the neurotransmitter dopamine transiently increased in activity. This activity could provide a global updating signal, cuing other brain systems that a significant new event has begun.
Field Endocrinology and Conservation Biology (2005)

Field endocrinology techniques allow the collection of samples (i.e., blood, urine, feces, tissues) from free-living animals for analysis of hormones, receptors, enzymes, etc. These data reveal mechanisms by which individuals respond to environmental challenges, breed, migrate and regulate all aspects of their life cycles. Field endocrinology techniques can also be used to address many issues in conservation biology. We briefly review past and current ways in which endocrine methods are used to monitor threatened species, identify potential stressors and record responses to environmental disturbance. We then focus on one important aspect of conservation: how free-living populations respond to human disturbance, particularly in relation to ecotourism. Breeding adult Magellanic penguins, Spheniscus magellanicus, appear to habituate well to tourists, and breed in an area where about 70,000 people visit during the season. Baseline levels of corticosterone return to normal after exposure of naïve birds to humans. However, penguin chicks appear to show a heightened adrenocortical response to handling stress in nests exposed to tourists, compared to chicks living in areas isolated from human intrusions. Given that developmental exposure to stress can have profound influences on how individuals cope with stress as adults, this potential effect of tourists on chicks could have long-term consequences. This field endocrine approach identified a stressor not observed through monitoring behavior alone.
Numerical Procedure For Computing Deflections, Moments, And Buckling Loads (1943)

A numerical procedure for computing the deflections and moments in beams and columns is described herein. The method is of particular applicability in determining critical buckling loads and configurations of bars of variable cross section loaded in various ways. For such problems the procedure becomes one of successive approximations. By means of a simple modification of the data entailing very little increase in numerical work, considerably greater accuracy is obtainable by this procedure than by others of similar nature hitherto available.
Role of mouth-to-mouth rescue breathing in bystander cardiopulmonary resuscitation for asphyxial cardiac arrest (2000)

There is increasing evidence that mouth-to-mouth rescue breathing may not be necessary during brief periods of bystander cardiopulmonary resuscitation (CPR) for ventricular fibrillation. In contrast to ventricular fibrillation cardiac arrests, it has been assumed that rescue breathing is essential for treatment of asphyxial cardiac arrests because the cardiac arrests result from inadequate ventilation. This review explores the role of mouth-to-mouth rescue breathing during bystander CPR for asphyxial cardiac arrests. Clinical data suggest that survival from apparent asphyxial cardiac arrest can occur after CPR consisting of chest compressions alone, without rescue breathing. Two randomized, controlled swine investigations using models of bystander CPR for asphyxial cardiac arrest establish the following: a) that prompt initiation of bystander CPR is a crucially important intervention; and b) that chest compressions plus mouth-to-mouth rescue breathing is markedly superior to either technique alone. One of these studies further demonstrates that early in the asphyxial pulseless arrest process doing something (mouth-to-mouth rescue breathing or chest compressions) is better than doing nothing.
An Algorithm for Finding Nearest Neighbors (1975)

An algorithm that finds the k nearest neighbors of a point, from a sample of size N in a d-dimensional space, with an expected number of distance calculations is described, its properties examined, and the validity of the estimate verified with simulated data.
Tuning the Polarizability in Donor Polymers with a Thiophenesaccharin Unit for Organic Photovoltaic Applications (2014)

This paper describes the synthesis of low bandgap copolymers incorporating an artificial sweetener derivative, N ‐alkyl, 3‐oxothieno[3,4‐ d ]isothiazole 1,1‐dioxide (TID). This new TID unit is identical to the well‐known thieno[3,4‐ c ]pyrrole‐4,6‐dione (TPD) unit except that one carbonyl has been replaced by a sulfonyl group. Semi‐empirical calculations on the local dipole moment change between ground and excited states (Δμ ge ) in the repeating units of the new polymer indicate that the replacement of the carbonyl by a sulfonyl group leads to larger Δμ ge values. The resulting polymers exhibit a diminished power‐conversion efficiency (PCE) compared to a bulk heterojunction (BHJ) solar cells with PC 71 BM as an acceptor, which extends the correlation between PCE and Δμ ge of single repeating units in p‐type polymers to a new regime. Detailed studies show that the strongly electron‐withdrawing sulfonyl group is detrimental to charge separation in alternating copolymers containing a TID unit.
The Suspicious Pedestrian Detection from Region Area using the SVM Algorithm with the Physical Characteristics (2013)

본 논문에서는 보행자를 실시간 감시 시스템에 적용 할 수 있도록 연구방향을 제시한다. 동영상이미지를 그레이 전처리를 하고, 영상차감법으로 배경이미지를 제거한다. 모폴로지의 닫힘연산으로 미세한 잡음을 제거하고, two-pass labeling으로 blob을 검출하였다. 그리고 신체특징을 이용하여 support vector machine(SVM)알고리즘에 적용하였다. 그리하여 조명 노이즈와 이동물체가 반사된 노이즈가 강인하게 필터링 되었다. 제안된 특징을 이용한 파라미터를 추가한 방법은 SVM 기반의 자세추정기법만을 사용하는 것 보다 보행자인식비율파라미터에서 훨씬 높은 인식률을 보여주었다. 최종 인식률은 94.2%로 제안된 방법이 기존방법보다 성능이 향상되었다. 그리고 최종목표인 관심지역에서의 수상한 인물을 찾아내어 긴급신호를 보낼 수 있었다.
Inhibition of CETP activity by torcetrapib reduces susceptibility to diet-induced atherosclerosis in New Zealand White rabbits (2007)

Cholesteryl ester transfer protein (CETP) inhibitors increase high density lipoprotein-cholesterol (HDL-C) in animals and humans, but whether CETP inhibition will be antiatherogenic is still uncertain. We tested the CETP inhibitor torcetrapib in rabbits fed an atherogenic diet at a dose sufficient to increase HDL-C by at least 3-fold (207 +/- 32 vs. 57 +/- 6 mg/dl in controls at 16 weeks). CETP activity was inhibited by 70-80% throughout the study. Non-HDL-C increased in both groups, but there was no difference apparent by the study's end. At 16 weeks, aortic atherosclerosis was 60% lower in torcetrapib-treated animals (16.4 +/- 3.4% vs. 39.8 +/- 5.4% in controls) and aortic cholesterol content was reduced proportionally. Sera from a separate group of rabbits administered torcetrapib effluxed 48% more cholesterol from Fu5AH cells than did sera from control animals, possibly explaining the reduced aortic cholesterol content. Regression analyses indicated that lesion area in the torcetrapib-treated group was strongly correlated with the ratio of total plasma cholesterol to HDL-C but not with changes in other lipid or lipoprotein levels. CETP inhibition with torcetrapib retards atherosclerosis in rabbits, and the reduced lesion area is associated with increased levels of HDL-C.
Simulation and Testing of a Latent Heat Thermal Energy Storage Unit with Metallic Phase Change Material (2014)

Latent heat thermal energy storage in metallic phase change materials offers a thermal energy storage concept that can store energy at higher temperatures than with sensible thermal energy storage. This may enable the use of high efficiency thermodynamic cycles in CSP applications, which may lead to a reduction in levelised cost of electricity. Eutectic aluminum silicon alloy, AlSi12, is an attractive phase change material because of its moderate melting temperature, high thermal conductivity, and high heat of fusion. A prototype thermal energy storage test rig has been built and tested as to better understand the behavior of latent heat thermal energy storage. A mathematical model was developed to predict the behavior of such a heat storage unit. The model was compared with the behavior of the test rig during discharge. The model proved to simulate the latent heat thermal energy storage with reasonable accuracy. It is recommended that more accurate material property data be obtained and that the thermal energy storage test rig be modified as to improve readings.
Mass Spectra of Substituted N‐Alkylpyrroles and Related Compounds (1994)

Abstract Under El conditions, substituents on N ‐alkylpyrroles affect fragmentation of the alkyl groups. The electron‐withdrawing character of the cyano group retarded formation of a N ‐methylene cation, and a labile substituent, i.e., ‐CHO, ‐CH 2 COOMe, competed with an N ‐alkyl group to be a initial fragmentation center, MNDO calculation of the heat of formation of possible fragment ions showed that protonated pyridine is the most stable among the isobaric ions.
Interactive Visual Graph Mining and Learning (2018)

This article presents a platform for interactive graph mining and relational machine learning called GraphVis. The platform combines interactive visual representations with state-of-the-art graph mining and relational machine learning techniques to aid in revealing important insights quickly as well as learning an appropriate and highly predictive model for a particular task (e.g., classification, link prediction, discovering the roles of nodes, and finding influential nodes). Visual representations and interaction techniques and tools are developed for simple, fast, and intuitive real-time interactive exploration, mining, and modeling of graph data. In particular, we propose techniques for interactive relational learning (e.g., node/link classification), interactive link prediction and weighting, role discovery and community detection, higher-order network analysis (via graphlets, network motifs), among others. GraphVis also allows for the refinement and tuning of graph mining and relational learning methods for specific application domains and constraints via an end-to-end interactive visual analytic pipeline that learns, infers, and provides rapid interactive visualization with immediate feedback at each change/prediction in real-time. Other key aspects include interactive filtering, querying, ranking, manipulating, exporting, as well as tools for dynamic network analysis and visualization, interactive graph generators (including new block model approaches), and a variety of multi-level network analysis techniques.
Flow cytometric analysis of cytokine receptors on human Langerhans' cells. Changes observed after short‐term culture (1996)

It is well established that granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin (IL)-1 and tumour necrosis factor-alpha (TNF-alpha) are involved in Langerhans' cell (LC) development and dendritic cell traffic. However, little is known about the pattern of cytokine receptors on human LC and their modulation during different stages of maturation. The expression of cytokine receptors was studied by flow cytometry on both freshly isolated LC (fLC) and 72-hr cultured LC (cLC). Epidermal cell suspensions enriched in LC were obtained after skin trypsinization and Ficoll-Hypaque gradient. LC were identified by their CD1a positivity. Although the majority of fLC were positive for the alpha chain of GM-CSF receptor (GM-CSFR), the beta chain of GM-CSFR was detected only on 15% of CD1a+ cells. fLC were also positive for IL-1 receptor (IL-1R) type 1, IL-1R type 2, 75,000 molecular weight TNF receptor (TNFR) and interferon-gamma receptor (IFN-gamma R). IL-6R and its transducing signal gp130 were present in a subset of fLC. Granulocyte colony-stimulating factor receptor (G-CSFR), macrophage colony-stimulating factor receptor (M-CSFR), the alpha and beta chain of IL-2R, IL-4R, IL-7R, IL-8R and 55,000 molecular weight TNFR were not detected on fLC. After culture, LC up-regulated the expression of both the alpha and beta chains of GM-CSFR, IL-1R type 2, alpha and beta chains of IL-2R, IL-6R and gp130. In contrast, IL-1R type 1 and 75,000 molecular weight TNFR were down-modulated and the expression of IFN-gamma R was not affected by culture. These results suggest that LC undergo changes in the cytokine receptor repertory during in vitro maturation.
Drall and Xmnl polymorphisms at the human parathyroid hormone locus (1991)

(1) reported a cDNA sequence for human GIP. We selected primers for polymerase chain reaction (PCR) from the 3' end of the coding sequence and extending into the untranslated region ofthe human GIP gene. The forward primer is 5'-CACAATGGGCTCGACTTAGCA-TAA-3', the reverse primer is 5'-ClTGCTGGATCAGACAA-ACCTCTG-3'. The expected amplification product based on cDNA sequence was 165 bp, however, a 1800 bp product was observed, implying these primers span an intron. Protocol: Each amplification reaction consisted of 100 ng genomic DNA, 10 ng of each primer, 1 xreaction buffer as supplied by manufacturer (Promega), 200 jiM of each nucleotide triphosphate, and 1.2 units Taq DNA polymerase (Promega) in a reaction volume of 20 pd. Each reaction mixtre was denatured at 95C for 5 minutes, followed by 30 cycles of PCR with primer annealing at 600C for 2 minutes, elongation at 720C for 3 minutes and denaturation at 94C for 1 minute. The final cycle consisted of a 10 minute 72C elongation followed by rapid cooling to 4C. PCR products were electrophoresed on 0.8% agarose gels. Polymorphism: Allele Al produces a PCR product of approximately 1950 bp, allele A2 produces a product of approximately 1800 bp, and allele A3 produces a product of approximately 1650 bp.
Design and Synthesis of [2-(8,9-Dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)- ethyl]phosphonic Acid (EAA-090), a Potent <i>N</i>-Methyl-<scp>d</scp>-aspartate Antagonist, via the Use of 3-Cyclobutene-1,2-dione as an Achiral α-Amino Acid Bioisostere (1998)

The diazabicyclic amino acid phosphonate 15, [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)ethyl]phosphonic acid, was identified as a potent NMDA antagonist. It contains the alpha-amino acid bioisostere 3,4-diamino-3-cyclobutene-1,2-dione and an additional ring for conformational rigidity. Compound 15 was as potent as CGS-19755 (5) in the [3H]CPP binding assay, the stimulated [3H]TCP binding assay, and the NMDA-induced lethality model in mice. A single bolus dose of compound 15, administered intravenously following permanent occlusion of middle cerebral artery (MCA) in the rat, reduced the size of infarcted tissue by 57%. Structure-activity relationship (SAR) studies have indicated that the six- and eight-membered ring derivatives had diminished activity and that the two-carbon side chain length was optimum for NMDA receptor affinity. Substitution on the ring was found to be counterproductive in the case of sterically demanding dimethyl groups and of no consequence in the case of an H-bonding hydroxyl group. Replacement of the phosphonic acid group by either a carboxylic acid or a tetrazole group was unproductive. The potent bicyclic NMDA antagonists were synthesized efficiently by virture of their achiral nature and the ease of vinylgous amide formation from squaric acid esters. Compound 15, being a unique NMDA antagonist structural type with a favorable preclinical profile, may offer advantages over existing NMDA antagonists for the treatment of neurological disorders such as stroke and head trauma. Compound 15 is currently under clinical evaluation as a neuroprotective agent for stroke.
ITL-MEPOSA: Improved Trilateration Localization With Minimum Uncertainty Propagation and Optimized Selection of Anchor Nodes for Wireless Sensor Networks (2019)

For wireless sensor networks, sensing data without location information are useless for future processing and decision-making systems. A wireless localization method can provide critical position information for the sensing data in the coverage field. Trilateration localization is applied widely in many systems due to its low cost and widespread availability. However, there are many negative factors that lead to low localization accuracy. Many improved versions of trilateration localization, including the weighted trilateration localization, the trilateration centroid localization, and other related methods, have been proposed to improve localization accuracy. However, these methods do not consider the influence mechanism of the negative factors, and the localization results are unsatisfactory. In this paper, considering the uncertainty propagation mechanism during trilateration localization, we propose an improved trilateration localization method with minimum uncertainty propagation and optimized selection of anchor nodes (ITL-MEPOSA). In this method, we consider the uncertainty propagation from distance estimation to localization calculation and evaluate the uncertainty propagation of each distance estimation result. Then, we utilize a single scan-sliding window with an optimized algorithm to select anchor nodes with minimum uncertainty propagation. Finally, based on the selected anchor nodes and their corresponding distance estimation results, an accurate localization result can be obtained through the least square criterion. The simulations and experimental results show that the proposed method can obtain high localization accuracy with acceptable efficiency.