gebhart/patrepeval huggingface dataset:
Student perception of on-line lectures with a blended learning environment. (2010)

Educational institutions are increasingly moving towards enhancing learning through the use of integrated information technology. Blended, or augmented, learning, aims to support the traditional learning environment – where the instructor blends online learning with the traditional face-to-face teaching. This may take the form of centrally Managed Systems (LMS), for example, or Instructor-led content such as online video, quizzes and activities. This paper investigates student preferences within a Computer Security and Digital Forensics module, regarding the integration of lecture using narrative-plus-PowerPoint within a traditional educational infrastructure. It thus assesses student perceptions in the usage of on-line lectures for security and digital forensics material, with a specific focus on whether students actually prefer the on-line version to the traditional lecture situation, and on how they use the on-line lecture material.
Quantification of Myocardial Blood Flow With Ultrasound-Induced Destruction of Microbubbles Administered as a Constant Venous Infusion (1998)

MBF can be quantified with myocardial contrast echocardiography during a venous infusion of microbubbles. This novel approach has potential for measuring tissue perfusion in any organ accessible to ultrasound.
Learning Object Manipulation With Under-Actuated Impulse Generator Arrays (2023)

For more than half a century, vibratory bowl feeders have been the standard in automated assembly for singulation, orientation, and manipulation of small parts. Unfortunately, these feeders are expensive, noisy, and highly specialized on a single part design bases. We consider an alternative device and learning control method for singulation, orientation, and manipulation by means of seven fixed-position variable-energy solenoid impulse actuators located beneath a semi-rigid part supporting surface. Using computer vision to provide part pose information, we tested various machine learning (ML) algorithms to generate a control policy that selects the optimal actuator and actuation energy. Our manipulation test object is a 6-sided craps-style die. Using the most suitable ML algorithm, we were able to flip the die to any desired face 30.4\% of the time with a single impulse, and 51.3\% with two chosen impulses, versus a random policy succeeding 5.1\% of the time (that is, a randomly chosen impulse delivered by a randomly chosen solenoid).
A real-time implementation of precise timestamp-free network synchronization (2015)

This paper describes a real-time implementation of precise synchronization between a master and slave node. The nodes were both implemented on separate Texas Instruments DSP boards with real-time software implemented in C. Timestamp-free synchronization is performed implicitly through the timing of the master node's responses to the slave node. The slave node tracks and predicts the master node's clock through precise time of arrival estimation and Kalman filtering of the estimates. Experimental results demonstrate the slave node is able to consistently predict the master node's clock offset to within a few nanoseconds over one second prediction intervals.
A novel immersed boundary method for solving flow with arbitrarily irregular and moving geometry (2016)

In this paper, a novel immersed boundary method is developed, validated, and applied. Through devising a second-order three-step flow reconstruction scheme, the proposed method is able to enforce the Dirichlet, Neumann, Robin, and Cauchy boundary conditions in a straightforward and consistent manner. Equipped with a fluid-solid coupling framework that integrates high-order temporal and spatial discretization schemes, numerical experiments concerning flow involving stationary and moving objects, convex and concave geometries, no-slip and slip wall boundary conditions, as well as subsonic and supersonic motions are conducted to validate the method. It is demonstrated that the proposed method can provide efficient, accurate, and robust boundary treatment for solving flow with arbitrarily irregular and moving geometries on Cartesian grids.
P-Socket (2016)

Data centers require efficient, low-cost, flexible interconnects to manage the rapidly growing internal traffic generated by an increasingly diverse set of applications. To meet these requirements, data center networks are increasingly employing alternatives such as RapidIO, Freedom, and PCIe, which require fewer physical devices and/or have simpler protocols than more traditional interconnects. These networks offer raw high performance communication capabilities, but simply using them for conventional TCP/IP-based communication fails to realize the potential performance of the physical network. Here we analyze causes for this performance loss for the TCP/IP protocol over one such fabric, PCIe, and we explore a hardware/software solution that mitigates overheads and exploits PCIe's advanced features. The result is P-Socket, an efficient library that enables legacy socket applications to run without modification. Our experiments show that P-Socket achieves an end-to-end latency of 1.2μs and effective bandwidth of up to 2.87GB/s (out of a theoretical peak of 3.05GB/s).
New Injectable Bone Substitute Using Reversible Thermosensitive Hydrogel and BCP Granules: <i>In Vivo </i>Rabbit Experiments (2008)

We have developed a new injectable bone substitute combining specific granules of BCP with or without radiopaque elements with a reversible thermo sensitive resorbable carrier such as Pluronic F-127. The composite is liquid at ambient temperature and set as hydrogel at 37°C. Rabbit experiment demonstrates high biocompatibility and bone ingrowth at the expense of the injectable bioceramic composite.
Successful behavior change in obesity interventions in adults: a systematic review of self-regulation mediators (2015)

This is the first systematic review of mediational psychological mechanisms of successful outcomes in obesity-related lifestyle change interventions. Despite limited evidence, higher autonomous motivation, self-efficacy, and self-regulation skills emerged as the best predictors of beneficial weight and physical activity outcomes; for weight control, positive body image and flexible eating restraint may additionally improve outcomes. These variables represent possible targets for future lifestyle interventions in overweight/obese populations.
Low‐molar‐mass and polymeric diazosulfonates as disguised diazonium ions for application as analytical reagents in quick assays (1997)

Abstract Diazosulfonates decompose in water upon UV irradiation, forming diazonium salts as intermediates. Therefore, these compounds can be considered as diazonium ion sources, which are thermally very stable, easy to handle, and suitable for longtime storage. Several low‐molar‐mass diazosulfonates have been used in UV initiated azo coupling reactions with a large variety of phenols, naturally occuring substances, and drugs and the results were compared to those obtained with free diazonium ions. The conditions for a successful coupling reaction and the UV absorptions of the products were studied in detail. The concept could be transferred to polymers containing diazosulfonate functional groups. A preliminary application test proved the suitability of these polymers as analytical reagents in quick assays.
The value of embryo transfer to cattle breeding in Britain (1978)

An analysis is made of the maximum expenditure which could be justified in embryo transfer in cattle is used to: increase the rate of genetic improvement of dairy or beef cattle; increase the frequency of twin-pregnancies; and expedite a change of breed. Estimates of maximum justifiable expenditure have been compared with an estimate of the cost of non-surgical transfer. Embryo transfer should be used in elite beef herds to increase selection intensity, particularly if bulls from such herds can be used for artificial insemination. Other commercial applications will not be economically justifiable until the cost of transfer has fallen by 50 to 80 per cent.
Pressure-Volume-Temperature Relationships of Alcohol Vapors2 (1954)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPressure-Volume-Temperature Relationships of Alcohol Vapors2Carl B. Kretschmer and Richard WiebeCite this: J. Am. Chem. Soc. 1954, 76, 9, 2579–2583Publication Date (Print):May 1, 1954Publication History Published online1 May 2002Published inissue 1 May 1954https://pubs.acs.org/doi/10.1021/ja01638a082https://doi.org/10.1021/ja01638a082research-articleACS PublicationsRequest reuse permissionsArticle Views575Altmetric-Citations86LEARN 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
Stochasticity of Manganese Superoxide Dismutase mRNA Expression in Breast Carcinoma Cells by Molecular Beacon Imaging (2005)

Visual and quantitative monitoring of cell-to-cell variation in the expression of manganese superoxide dismutase (MnSOD) mRNA by using novel ratiometric imaging with molecular beacons (MB) reveals a distinct change in patterns following induction of human breast-carcinoma cells with lipopolysaccharide. Interestingly, the pattern of cell-to-cell variation in a cell line stably transfected with a plasmid bearing a cDNA clone of MnSOD and overproducing the enzyme is significantly different from the pattern associated with MnSOD induction. The levels and the patterns of cell-population heterogeneity for beta-actin mRNA expression do not show distinct changes either following induction or in stably transfected cells. These results are significant in light of the reported relationship between this enzyme and malignant phenotype of breast-carcinoma cells. Use of MBs in ratiometric image analyses for cytoplasmic mRNAs represents a novel means of directly examining the stochasticity of transcription of MnSOD and other genes implicated in cellular phenotype regulation.
SPATIO-TEMPORALLY PERIODIC CONTROL FOR TURBULENT FRICTION DRAG REDUCTION (2009)

We evaluate the pre-determined control with temporally- and spatially-periodic spanwise velocity inputs at the wall in a fully developed two-dimensional turbulent channel flow. The spatially-periodic control generally achieves better performance than the temporally-periodic control, the latter of which is called conventionally the spanwise wall-oscillation control. To analyze the drag reducing mechanisms, we focus on the near-wall structures such as quasi-streamwise vortices and low-speed streaks. As a result, it is found that the drag is reduced through the modified spatial phase-relationship between the streamwise vortex and the low-speed streak.
In-Line Monitoring of Laser Welding Using a Smart Vision System (2018)

This paper presents a vision system for the in-line monitoring of laser welding. The system is based on a coaxial optical setup purposely chosen to guarantee robust detection of the joints and optimal acquisition of the melt pool region. Two procedures have been developed: the former focuses on keeping the laser head locked to the joint during the welding; the latter monitors the appearance of the keyhole region. The system feedbacks the joint position to the robot used to move the welding laser and monitors the penetration state of the laser. The goal is to achieve a continuous adaptation of the laser parameters (power., speed and focusing) to guarantee the weld quality. The developed algorithms have been designed to optimize the system performance in terms of the elaboration time and of accuracy and robustness of the detection. The overall architecture follows the Industrial Internet of Things approach, where vision is embedded, edge-based analysis is carried out, actuators are directly driven by the vision system, a latency-free transmission architecture allows interconnection as well as the possibility to remotely control multiple delocalized units.
Comparison between Stromal Vascular Cells’ Isolation with Enzymatic Digestion and Mechanical Processing of Aspirated Adipose Tissue (2014)

BACKGROUND: Adipose stromal vascular fraction (SVF) is an important source of adipose-derived mesenchymal stem cells (ADMSCs) that are used in regenerative medicine.1 Numerous procedures including mechanical and enzymatic methods have been used to obtain stromal vascular cells (SVCs) from adipose tissue.2 The cellular composition of SVF obtained may have an effect on its capabilities. Therefore, we compared the yield and cellular composition of SVCs obtained from lipoaspirates after centrifugation, vortexing and collagenase digestion. METHODS: Subcutaneous adipose tissue was obtained from 9 adults aged 21-55 years and an average BMI of 28, by vacuum-assisted liposuction. SVCs were isolated by high centrifugation, vortexing for 3 minutes followed by centrifugation or collagenase digestion. After red blood cell lysis, SVCs were subjected to cell counting, viability measurements and flow ytometry. The relative percentages of ADMSCs (CD45- CD73+ CD90+), endothelial cells (CD45- CD31+) and monocytes / macrophages (CD45+ CD14+) were quantified. RESULTS: SVC yields differed with the highest yield obtained from enzymatic isolation (2.3 x10 5 cells/ml lipoaspirate), 10 fold fewer cells from centifugation and 20 fold fewer from vortex/centrifugation. Cell viability was similar between the methods (80-90%). The cellular composition of SVF was potentially the most significant variation between the methods. Collagenase digested SVF contained fewer cells of hematopoetic origin (32%) than mechanically isolated SVF (70-85%) and greater numbers of ADMSCs (60%) than mechanically isolated SVF (6-13%). In addition, collagenase digested SVF contained fewer inflammatory monocytes/macrophages and greater quantity of endothelial cells than mechanically isolated SVF. CONCLUSIONS: Although regenerative cells were isolated from all 3 processes, the increased hematopoetic and inflammatory cells as well as decreased ADMSCs and endothelial cells in the mechanically isolated cell populations may contribute to reduced herapeutic potential when used in regenerative medicine.
Numerical Analysis of Latent Thermal Energy Storage System With Embedded Thermosyphons (2012)

Latent thermal energy storage (LTES) system offers high energy storage density and nearly isothermal operation for concentrating solar power generation. However, the low thermal conductivity possessed by the phase change material (PCM) used in LTES system limits the heat transfer rates. Utilizing thermosyphons to charge or discharge a LTES system offers a promising engineering solution to compensate for the low thermal conductivity of the PCM. The present work numerically investigates the enhancement in the thermal performance of charging and discharging process of LTES system by embedding thermosyphons. A transient, computational analysis of the LTES system with embedded thermosyphons is performed for both charging and discharging cycles. The influence of the design configuration of the system and the arrangement of the thermosyphons on the charge and discharge performance of the LTES installed in a concentrating solar power plant (CSP) is analyzed to identify configurations that lead to improved effectiveness.
Acoustical Respiratory Flow (2007)

Acoustical respiratory flow estimation has drawn much attention in recent years due to difficulties in airflow measurement [1]. In clinical respiratory and/or swallowing assessment, flow is usually measured by spirometry devices, such as pneumotachograph, nasal cannulas connected to a pressure transducer, and heated thermistor or anemometry. Airflow is also measured by indirect means, i.e., detection of chest and/or abdominal movements using respiratory inductance plethysmography (RIP), strain gauges, or magnetometers. The most reliable measurement of airflow is achieved by a mouth piece or facemask connected to a pneumotachograph [1]. However, this device cannot be used during the swallowing assessment. Therefore, when recording sound during a swallow, flow is usually measured by nasal cannulas connected to a pressure transducer. Potentially, this method could be an inaccurate measure of airflow because the air leaks around the nasal cannulas. In addition, if the subject breathes through the mouth, flow is not registered at all.
Arterial blood pressure measurement in a population of healthy geriatric dogs (2000)

The purpose of this study was to evaluate healthy geriatric dogs for the presence of systemic hypertension. Thirty-three geriatric dogs (i.e., dogs exceeding the geriatric age range for their weight group) and 22 control dogs (i.e., dogs less than six years of age) were evaluated by measuring blood pressure with an oscillometric monitor. Five consecutive blood pressure measurements were taken in each dog, averaged, and compared. Diastolic and mean blood pressure measurements were significantly lower in the geriatric group as compared to the control group. Systolic blood pressure measurements were not significantly different between the two groups. Systemic hypertension does not appear to be a common clinical problem in the healthy geriatric dog.
Erv2p:  Characterization of the Redox Behavior of a Yeast Sulfhydryl Oxidase (2007)

The FAD prosthetic group of the ERV/ALR family of sulfhydryl oxidases is housed at the mouth of a 4-helix bundle and communicates with a pair of juxtaposed cysteine residues that form the proximal redox active disulfide. Most of these enzymes have one or more additional distal disulfide redox centers that facilitate the transfer of reducing equivalents from the dithiol substrates of these oxidases to the isoalloxazine ring where the reaction with molecular oxygen occurs. The present study examines yeast Erv2p and compares the redox behavior of this ER luminal protein with the augmenter of liver regeneration, a sulfhydryl oxidase of the mitochondrial intermembrane space, and a larger protein containing the ERV/ALR domain, quiescin-sulfhydryl oxidase (QSOX). Dithionite and photochemical reductions of Erv2p show full reduction of the flavin cofactor after the addition of 4 electrons with a midpoint potential of -200 mV at pH 7.5. A charge-transfer complex between a proximal thiolate and the oxidized flavin is not observed in Erv2p consistent with a distribution of reducing equivalents over the flavin and distal disulfide redox centers. Upon coordination with Zn2+, full reduction of Erv2p requires 6 electrons. Zn2+ also strongly inhibits Erv2p when assayed using tris(2-carboxyethyl)phosphine (TCEP) as the reducing substrate of the oxidase. In contrast to QSOX, Erv2p shows a comparatively low turnover with a range of small thiol substrates, with reduced Escherichia coli thioredoxin and with unfolded proteins. Rapid reaction studies confirm that reduction of the flavin center of Erv2p is rate-limiting during turnover with molecular oxygen. This comparison of the redox properties between members of the ERV/ALR family of sulfhydryl oxidases provides insights into their likely roles in oxidative protein folding.
Iodine promoted iodosulfonylation of alkynes with sulfonyl hydrazides in an aqueous medium: highly stereoselective synthesis of (E)-β-iodo vinylsulfones (2018)

An efficient, molecular iodine-promoted MCR of alkynes and sulfonyl hydrazide for the synthesis of (<italic>E</italic>)-β-iodo vinylsulfone derivatives has been developed.
Thermal transport in graphene nanoribbons supported on SiO2 (2012)

We present a theoretical model for thermal transport in graphene nanoribbons (GNRs) on SiO${}_{2}$ based on solving the phonon Boltzmann transport equation. Thermal transport in supported GNRs is characterized by a complex interplay between line edge roughness (LER) and internal scattering, as captured through an effective LER scattering rate that depends not only on the surface roughness features, but also on the strength of internal scattering mechanisms (substrate, isotope, and umklapp phonon scattering). Substrate scattering is the dominant internal mechanism, with a mean free path (mfp) of approximately 67 nm. In narrow supported GNRs ($W&lt;130$ nm, i.e., roughly twice the mfp due to substrate scattering), phonon transport is limited by LER and spatially anisotropic. For intermediate widths ($130\phantom{\rule{0.16em}{0ex}}\mathrm{nm}&lt;W&lt;1$ $\ensuremath{\mu}$m) a competition between LER and substrate scattering governs transport, while thermal transport in wide GNRs ($W&gt;1\phantom{\rule{0.28em}{0ex}}\ensuremath{\mu}$m) is dominated by substrate scattering and spatially isotropic. Thermal transport in supported GNRs can be tailored by controlling the ribbon width and edge roughness. We conclude that narrow ribbons act as longitudinal heat conduits while wide ribbons act as good omnidirectional heat spreaders.
Proteome Mapping of Human Skim Milk Proteins in Term and Preterm Milk (2012)

The abundant proteins in human milk have been well characterized and are known to provide nutritional, protective, and developmental advantages to both term and preterm infants. However, relatively little is known about the expression of the low abundance proteins that are present in human milk because of the technical difficulties associated with their detection. We used a combination of electrophoretic techniques, ProteoMiner treatment, and two-dimensional liquid chromatography to examine the proteome of human skim milk expressed between 7 and 28 days postpartum by healthy term mothers and identified 415 in a pooled milk sample. Of these, 261 were found in human skim milk for the first time, greatly expanding our understanding of the human skim milk proteome. The majority of the proteins identified were involved in either the immune response (24%) or in cellular (28%) or protein (16%) metabolism. We also used iTRAQ analysis to examine the effects of premature delivery on milk protein composition. Differences in protein expression between pooled milk from mothers delivering at term (38-41 weeks gestation) and preterm (28-32 weeks gestation) were investigated, with 55 proteins found to be differentially expressed with at least 90% confidence. Twenty-eight proteins were present at higher levels in preterm milk, and 27 were present at higher levels in term milk.
Application of Airbrush-Inoculation Technique to the Screening of Anti-Plant-Viral Substances (1973)

For the purpose of obtaining efficient and uniform inoculations in the screening test of anti-plant-viral substances, airbrush-inoculation technique was examined by using the combination of TMV and Nicotiana tabacum var. Xanthi. The optimum conditions were: 1) 4kg/cm2 gauge pressure of the air compressor, 2) 20cm distance of airbrush nozzle to leaf surface, 3) 0.5 seconds exposure period under airbrush of the inoculum, 4) 1% by weight of 400-500 mesh carborundum in the inoculum, and 5) 0.88μg TMV in 1ml of the inoculum. These conditions are also suitable for the inoculation of TMV to 4cm-tall seedlings of Lycopersicon esculentum. Aabomycin A, blasticidin S, bihoromycin and sodium arginate were tested for their anti-viral activities using this inoculation technique. Among these, the emulsion of aabomycin A was the most effective for the inhibition of symptom development. The efficiency of this inoculation technique is much higher than that of the rubbing method.