gebhart/patrepeval huggingface dataset:
Distance learning standards: technologies and challenges (2010)

Distance learning involves a few computer and network technologies. Recent studies indicate that it is necessary to investigate the standards of contents, platforms, and communications for the use of distance education. In this paper, we discuss a few standards developed by different consortiums. We then focus on the discussion of Sharable Content Object Reference Model (SCORM), which is an asynchronous distance learning standard developed by the Advanced Distributed Learning (ADL) initiative. The SCORM specification include three parts: the Content Aggregation Model (CAM) which defines representations of course materials, the Run-Time Environment (RTE) which discusses communication protocols between course content and the server platform, and the simple sequence specification which controls interaction of users. We point out some important issues for the developers and researchers in the conclusion section.
SABmark—a benchmark for sequence alignment that covers the entire known fold space (2004)

Abstract Summary: The Sequence Alignment Benchmark (SABmark) provides sets of multiple alignment problems derived from the SCOP classification. These sets, Twilight Zone and Superfamilies, both cover the entire known fold space using sequences with very low to low, and low to intermediate similarity, respectively. In addition, each set has an alternate version in which unalignable but apparently similar sequences are added to each problem. Availability: SABmark is available from http://bioinformatics.vub.ac.be Contact: ivwalle@vub.ac.be
A coupled atmosphere-wildland fire meso-scale model (2009)

Poster presented in the EGU General Assembly 2009, Vienna, Austria, 19-24 april 2009
Occlusion Does Not Uniformly Enhance Penetration In Vivo (2005)

Mammalian skin provides a relatively efﬁcient barrier to the ingress of exogenous materials and the egress of endogenous compounds, particulary water. Loss of this vital function results in death from dehydration. Compromised function is associated with complications seen in several dermatological disorders. Stratum corneum intercellular lipid domains form a major transport pathway for penetration (1-4). Perturbation of these lamellar lipids causes skin permeation resistance to fall and has implicated their crucial role in barrier function. Indeed, epidermal sterologenesis appears to be modulated by the skin’s barrier requirements (5). Despite the fact that the skin is perhaps the most impermeable mammalian membrane, it is permeable to a degree, that is, it is semipermeable; as such, the topical application of pharmaceutical agents has been shown to be a viable route of entry into the systemic circulation as well as an obvious choice in the treatment of dermatological ailments. Of the various approaches employed to enhance the percutaneous absorption of drugs, occlusion (deﬁned as the complete impairment of passive transepidermal water loss at the application site) is the simplest and perhaps one of the most common methods in use. In this chapter we have summarized the literature to evaluate the effect of occlusion on the percutaneous absorption of topically applied compounds and to look at how certain compound physicochemical properties (such as volatility, partition coefﬁcient, and aqueous solubility) may predict what effect occlusion may have.
ηγDecays ofρ0,ω, andϕMesons (1977)

$\ensuremath{\eta}\ensuremath{\gamma}$ decays of ${\ensuremath{\rho}}^{0}$, $\ensuremath{\omega}$, and $\ensuremath{\phi}$ are studied. We find $\ensuremath{\Gamma}(\ensuremath{\phi}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})=55\ifmmode\pm\else\textpm\fi{}12$ keV. Our data admit two solutions for $({\ensuremath{\rho}}^{0}, \ensuremath{\omega})\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma}$: Either $\ensuremath{\Gamma}({\ensuremath{\rho}}^{0}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})=50\ifmmode\pm\else\textpm\fi{}13$ keV, $\ensuremath{\Gamma}(\ensuremath{\omega}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})={3.0}_{\ensuremath{-}1.8}^{+2.5}$ keV, and the $(\ensuremath{\omega}, \ensuremath{\rho})\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma}$ relative decay phase is near zero; or $\ensuremath{\Gamma}({\ensuremath{\rho}}^{0}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})=76\ifmmode\pm\else\textpm\fi{}15$ keV, $\ensuremath{\Gamma}(\ensuremath{\omega}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})=29\ifmmode\pm\else\textpm\fi{}7$ keV, and the decay phase is near 180\ifmmode^\circ\else\textdegree\fi{}.
Accelerating Curvature Estimate in 3D Seismic Data Using GPGPU (2014)

Seismic interpretation is a vital step in oil and gas industry. Choosing proper drilling locations is a major challenge to the interpreters, since an ultra-deep water oil well located below 2500 meters of water can cost dozens of millions of dollars. Volumetric curvature attributes are widely used to visualize folds, faults, among other key structures that define a possible reservoir. However, volumetric curvature estimate is very compute-intensive and can take several hours. The main goal of this paper is to present a GPGPU implementation that perform volumetric curvature estimate at interactive real-time, for a single volume slice. We show an implementation that maximizes memory access, loading necessary data to GPU shared memory using a circular buffer. The most compute demanding kernel achieved 56% of GPU peak performance and 1.676 instructions per clock out of theoretical maximum 2. Our results show an average speed-up of 12 times compared to CPU with OpenMP. In addition, the application fits really well on GPUs, due to the high number of registers available plus programmable cache (CUDA shared memory). The GPU performance gains enabled on-the-fly calculations during visualization at interactive real-time, instead of waiting time of hours for the whole volume.
Complete recovery of the phosphoenzyme‐forming activity of nucleoside‐diphosphate kinases after reconstitution of their subunits (1986)

Two distinct subunits [alpha-subunit (Mr 21 000, pI 7.6) and beta-subunit (Mr 19 000, pI 6.5)] of nucleoside-diphosphate (NDP) kinases highly purified from HeLa S3 cells can be separated by FPLC using a Mono P column in the presence of 6 M urea and 1% pharmalyte (pH range between 5.0 and 8.0). Comparatively high [32P]phosphate incorporation was detected when these two subunit fractions were reconstituted in vitro. Available evidence suggests that these two enzyme subunits are necessary for the formation of phosphoenzyme, which functions as an intermediate in NDP kinase action.
OPC model calibration based on circle-sampling theorem (2006)

A new efficient OPC model calibration method for optical lithography process is presented. The method is based on the applying of circle-sampling theorem in the description of mask and optical system. A new point intensity calculation method is then obtained from the representation of TCC and mask using a group of selected circle sampling functions. Then the CD value is computed using the constant threshold model (CTR). In this study, genetic algorithm was first used to optimize the diagonal elements of the new derived TCC matrix. This way, good optimized results were obtained with different sets of optical proximity efficient data
VISA: Virtual Scanning Algorithm for Dynamic Protection of Road Networks (2009)

This paper proposes a virtual scanning algorithm (VISA), tailored and optimized for road network surveillance. Our design uniquely leverages upon the facts that (i) the movement of targets (e.g., vehicles) is confined within roadways and (ii) the road network maps are normally known. We guarantee the detection of moving targets before they reach designated protection points (such as temporary base camps), while maximizing the lifetime of the sensor network. The main idea of this work is virtual scan - waves of sensing activities scheduled for road network protection. We provide design-space analysis on the performance of virtual scan in terms of lifetime and average detection delay. Importantly, to our knowledge, this is the first work to study how to guarantee target detection while sensor network deteriorates, using a novel hole handling technique. Through theoretical analysis and extensive simulation, it is shown that a surveillance system, using our design, sustains orders-of-magnitude longer lifetime than full coverage algorithms, and as much as ten times longer than legacy duty cycling algorithms.
Many-to-Many Matching Games for Proactive Social-Caching in Wireless Small Cell Networks (2014)

In this paper, we address the caching problem in small cell networks from a game theoretic point of view. In particular, we formulate the caching problem as a many-to-many matching game between small base stations and service providers' servers. The servers store a set of videos and aim to cache these videos at the small base stations in order to reduce the experienced delay by the end-users. On the other hand, small base stations cache the videos according to their local popularity, so as to reduce the load on the backhaul links. We propose a new matching algorithm for the many-to-many problem and prove that it reaches a pairwise stable outcome. Simulation results show that the number of satisfied requests by the small base stations in the proposed caching algorithm can reach up to three times the satisfaction of a random caching policy. Moreover, the expected download time of all the videos can be reduced significantly.
Regional and tissue specific transcript signatures of ion channel genes in the non‐diseased human heart (2007)

The various cardiac regions have specific action potential properties appropriate to their electrical specialization, resulting from a specific pattern of ion-channel functional expression. The present study addressed regionally defined differential ion-channel expression in the non-diseased human heart with a genomic approach. High-throughput real-time RT-PCR was used to quantify the expression patterns of 79 ion-channel subunit transcripts and related genes in atria, ventricular epicardium and endocardium, and Purkinje fibres isolated from 15 non-diseased human donor hearts. Two-way non-directed hierarchical clustering separated atria, Purkinje fibre and ventricular compartments, but did not show specific patterns for epicardium versus endocardium, nor left- versus right-sided chambers. Genes that characterized the atria (versus ventricles) included Cx40, Kv1.5 and Kir3.1 as expected, but also Cav1.3, Cav3.1, Cav alpha2 delta2, Nav beta1, TWIK1, TASK1 and HCN4. Only Kir2.1, RyR2, phospholamban and Kv1.4 showed higher expression in the ventricles. The Purkinje fibre expression-portrait (versus ventricle) included stronger expression of Cx40, Kv4.3, Kir3.1, TWIK1, HCN4, ClC6 and CALM1, along with weaker expression of mRNA encoding Cx43, Kir2.1, KChIP2, the pumps/exchangers Na(+),K(+)-ATPase, NCX1, SERCA2, and the Ca(2+)-handling proteins RYR2 and CASQ2. Transcripts that were more strongly expressed in epicardium (versus endocardium) included Cav1.2, KChIP2, SERCA2, CALM3 and calcineurin-alpha. Nav1.5 and Nav beta1 were more strongly expressed in the endocardium. For selected genes, RT-PCR data were confirmed at the protein level. This is the first report of the global portrait of regional ion-channel subunit-gene expression in the non-diseased human heart. Our data point to significant regionally determined ion-channel expression differences, with potentially important implications for understanding regional electrophysiology, arrhythmia mechanisms, and responses to ion-channel blocking drugs. Concordance with previous functional studies suggests that regional regulation of cardiac ion-current expression may be primarily transcriptional.
A One-Sided Acoustic Trap for Cell Immobilization Using 30-MHz Array Transducer (2019)

Biological studies often involve the investigation of immobilized (or trapped) particles and cells. Various trapping methods without touching, such as optical, magnetic, and acoustic tweezers, have been developed to trap small particles. Here, we present the manipulation of a single cell or multiple cells using ultrasound-array-based single-beam acoustic tweezers (UA-SBATs). In SBATs, only a one-sided tightly focused acoustic beam produces a high acoustic gradient force-a mechanism that mirrors that of optical tweezers. As a result, targeted cells can be attracted to the beam center and immobilized within its trapping zone. Since an array transducer allows acoustic beam steering and scanning electronically instead of mechanical translation, it can manipulate cells more simply and quickly compared with single-element transducers, especially in biocompatible setup. In this experiment, a customized 30-MHz array transducer with an interdigitally bonded (IB) 2-2 piezocomposite was employed to immobilize MCF-12F cells. Cells were attracted to the center of the beam and laterally displaced with the array transducer without any damages to the cells. These findings suggest that UA-SBAT can be a promising tool for cell manipulation and may pave the way for exploring new biological applications.
Self-routing all-optical switch for WDM applications (1998)

We present the theory and modeling of an all-optical device which realizes self-routing of waves at different wavelengths. The device exploits spatial soliton interaction in the Kerr-like nonlinear medium and can be used in WDM networks. Interaction is governed by four-wave mixing that produces the desired effects under suitable excitation conditions. We give the example of a device able to route ten wavelengths, with good spatial separation at the output and practically no loss.
Trabajo social en el club del paciente diabético del hospital Juan José Arévalo Bermejo, IGSS, zona 6. (2013)

Las personas diabeticas que participan en el club, la mayoria corresponden al sexo masculino, son casados, con baja escolaridad, tienen entre 45 y 70 anos de edad. La ocupacion u oficio en su mayoria son amas de casa, en porcentajes bajos maestras jubiladas, comerciantes, electricistas, mecanicos, mensajeros y pilotos.
Los beneficios de los pacientes que asisten al club son: mejor control del azucar, de la alimentacion, uso de medicamentos, educacion, platicas, terapias, cuidados e higiene y ejercicio, para mejorar su calidad de vida.
Pandemic-proof recruitment and engagement in a fully decentralized trial in atrial fibrillation patients (DeTAP) (2022)

The Coronavirus Disease 2019 (COVID-19) pandemic curtailed clinical trial activity. Decentralized clinical trials (DCTs) can expand trial access and reduce exposure risk but their feasibility remains uncertain. We evaluated DCT feasibility for atrial fibrillation (AF) patients on oral anticoagulation (OAC). DeTAP (Decentralized Trial in Afib Patients, NCT04471623) was a 6-month, single-arm, 100% virtual study of 100 AF patients on OAC aged >55 years, recruited traditionally and through social media. Participants enrolled and participated virtually using a mobile application and remote blood pressure (BP) and six-lead electrocardiogram (ECG) sensors. Four engagement-based primary endpoints included changes in pre- versus end-of-study OAC adherence (OACA), and % completion of televisits, surveys, and ECG and BP measurements. Secondary endpoints included survey-based nuisance bleeding and patient feedback. 100 subjects (mean age 70 years, 44% women, 90% White) were recruited in 28 days (traditional: 6 pts; social media: 94 pts in 12 days with >300 waitlisted). Study engagement was high: 91% televisits, 85% surveys, and 99% ECG and 99% BP measurement completion. OACA was unchanged at 6 months (baseline: 97 ± 9%, 6 months: 96 ± 15%, p = 0.39). In patients with low baseline OACA (<90%), there was significant 6-month improvement (85 ± 16% to 96 ± 6%, p < 0.01). 86% of respondents (69/80) expressed willingness to continue in a longer trial. The DeTAP study demonstrated rapid recruitment, high engagement, and physiologic reporting via the integration of digital technologies and dedicated study coordination. These findings may inform DCT designs for future cardiovascular trials.
Learning Collections of Part Models for Object Recognition (2013)

We propose a method to learn a diverse collection of discriminative parts from object bounding box annotations. Part detectors can be trained and applied individually, which simplifies learning and extension to new features or categories. We apply the parts to object category detection, pooling part detections within bottom-up proposed regions and using a boosted classifier with proposed sigmoid weak learners for scoring. On PASCAL VOC 2010, we evaluate the part detectors' ability to discriminate and localize annotated key points. Our detection system is competitive with the best-existing systems, outperforming other HOG-based detectors on the more deformable categories.
Defect‐Induced, Ferroelectric‐Like Switching and Adjustable Dielectric Tunability in Antiferroelectrics (2023)

Antiferroelectrics, which undergo a field-induced phase transition to ferroelectric order that manifests as double-hysteresis polarization switching, exhibit great potential for dielectric, electromechanical, and electrothermal applications. Compared to their ferroelectric cousins, however, considerably fewer efforts have been made to understand and control antiferroelectrics. Here, it is demonstrated that the polarization switching behavior of an antiferroelectric can be strongly influenced and effectively regulated by point defects. In films of the canonical antiferroelectric PbZrO<sub>3</sub> , decreasing oxygen pressure during deposition (and thus increasing adatom kinetic energy) causes unexpected "ferroelectric-like" polarization switching although the films remain in the expected antiferroelectric orthorhombic phase. This "ferroelectric-like" switching is correlated with the creation of bombardment-induced point-defect complexes which pin the antiferroelectric-ferroelectric phase boundaries, and thus effectively delay the phase transition under changing field. The effective pinning energy is extracted via temperature-dependent switching-kinetics studies. In turn, by controlling the concentration of defect complexes, the dielectric tunability of the PbZrO<sub>3</sub> can be adjusted, including being able to convert between "positive" and "negative" tunability near zero field. This work reveals the important role and strong capability of defects to engineer antiferroelectrics for new performance and functionalities.
Text degradations and OCR training (2005)

Printing and scanning of text documents introduces degradations to the characters which can be modeled. Interestingly, certain combinations of the parameters that govern the degradations introduced by the printing and scanning process affect characters in such a way that the degraded characters have a similar appearance, while other degradations leave the characters with an appearance that is very different. It is well known that (generally speaking), a test set that more closely matches a training set is recognized with higher accuracy than one that matches the training set less well. Likewise, classifiers tend to perform better on data sets that have lower variance. This paper explores an analytical method that uses a formal printer/scanner degradation model to identify the similarity between groups of degraded characters. This similarity is shown to improve the recognition accuracy of a classifier through model directed choice of training set data.
DeepSense: Enabling Carrier Sense in Low-Power Wide Area Networks Using\n Deep Learning (2019)

The last few years have seen the proliferation of low-power wide area\nnetworks like LoRa, Sigfox and 802.11ah, each of which use a different and\nsometimes proprietary coding and modulation scheme, work below the noise floor\nand operate on the same frequency band.\n We introduce DeepSense, which is the first carrier sense mechanism that\nenables random access and coexistence for low-power wide area networks even\nwhen signals are below the noise floor. Our key insight is that any\ncommunication protocol that operates below the noise floor has to use coding at\nthe physical layer. We show that neural networks can be used as a general\nalgorithmic framework that can learn the coding mechanisms being employed by\nsuch protocols to identify signals that are hidden within noise. Our evaluation\nshows that DeepSense performs carrier sense across 26 different LPWAN protocols\nand configurations below the noise floor and can operate in the presence of\nfrequency shifts as well as concurrent transmissions. Beyond carrier sense, we\nalso show that DeepSense can support multi bit-rate LoRa networks by\nclassifying between 21 different LoRa configurations and flexibly adapting\nbitrates based on signal strength. In a deployment of a multi-rate LoRa\nnetwork, DeepSense improves bit rate by 4x for nearby devices and provides a\n1.7x increase in the number of locations that can connect to the campus-wide\nnetwork.\n
Ag+-catalyzed rearrangements. XII. Effect of methyl substitution on the competitive rearrangements of tricyclo[4.1.0.02,7]heptanes by silver(I) ion. Product and kinetic considerations (1972)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAg+-catalyzed rearrangements. XII. Effect of methyl substitution on the competitive rearrangements of tricyclo[4.1.0.02,7]heptanes by silver(I) ion. Product and kinetic considerationsLeo A. Paquette, Stanley E. Wilson, Richard P. Henzel, and George R. Allen Jr.Cite this: J. Am. Chem. Soc. 1972, 94, 22, 7761–7770Publication Date (Print):November 1, 1972Publication History Published online1 May 2002Published inissue 1 November 1972https://pubs.acs.org/doi/10.1021/ja00777a019https://doi.org/10.1021/ja00777a019research-articleACS PublicationsRequest reuse permissionsArticle Views276Altmetric-Citations24LEARN 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
A New Approach to Mechanical Harvesting of Fresh Market Peaches Grown in a Meadow Orchard (1980)

ABSTRACT PEACHES grown in a meadow orchard system open new possibilities for mechanical harvesting. The pro-posed innovation is based on cutting the tree canopy and separating the fruit from the branches by means of a horizontal shaking conveyor. The potential of the new .concept was explored by initial experiments related to fruit separation parameters, fruit damage and post harvest studies. Preliminary results indicated that with the cultivars examined by an acceleration of approx-imately 2.5 g rendered very good fruit removal with at least 75 percent of the fruit marketable.
Vigour and Pattern in Taxonomy (1968)

Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher and we support and invest in the microbiology community, to the benefit of everyone. This supports our principal goal to develop, expand and strengthen the networks available to our members so that they can generate new knowledge about microbes and ensure that it is shared with other communities.