gebhart/patrepeval huggingface dataset:
Effects of chemical intermixing on electrical and thermal contact conductances at metallized bismuth and antimony telluride interfaces (2015)

Tailoring electrical and thermal contact conductivities (Σc and Γc) across metallized pnictogen chalcogenide interfaces is key for realizing efficient thermoelectric devices. The authors report that Cu, Ni, Ti, and Ta diffusion and interfacial telluride formation with n-Bi2Te3 and p-Sb2Te3 influence both Σc and Γc. Cu metallization yields the highest Γc and the lowest Σc, correlating with maximal metal diffusion and copper telluride formation. Ni diffuses less and yields the highest Σc with Sb2Te3 due to p-type nickel telluride formation, which diminishes Σc improvement with n-Bi2Te3 interfaces. Ta and Ti contacts yield the lowest properties similar to that in Ni-metallized structures. These correlations between interfacial diffusion and phase formation on electronic and thermal transport properties will be important for devising suitable metallization for thermoelectric devices.
GNOM‐dependent endocytosis maintains polar localisation of the borate exporter BOR1 in Arabidopsis (2021)

We found that BFA inhibits the polar localisation of BOR1 by inhibiting GNOM activity. Our results suggest that GNOM-dependent endocytosis contributes to the maintenance of the polar localisation of BOR1 under B limitation. We propose a model of BOR1 transcytosis initiated from GNOM-dependent endocytosis.
The Stability of Fluid Production From a Flexible Riser (2002)

The prediction of slug formation and slug size has a direct impact on the design of topsides separation facilities and flow assurance to the process. The characteristics and stability of liquid production from an S-shaped riser have been studied over a range of pressures, focusing on the implications for flow management. Severe slugging in an S-shaped riser gives a period of no liquid production, followed by a period of steady production and finally a large production spike, many times larger than the steady production. In contrast with classical severe slugging in a vertical or catenary riser, the transient spike is broken into two parts as a direct consequence of the bend in the line. Little attention has been paid to transition-type flows (between stable and unstable flow) previously. Data collected to date has shown transition flows have production peaks that are larger than those of classical severe slugging.
Data analysis of CO2 hydrogenation catalysts for hydrocarbon production (2022)

Literature data of CO2 hydrogenation catalysts for hydrocarbon production via Fischer-Tropsch synthesis (FTS) were extracted from literature, collected into a SQLite database, and analyzed using data science and machine learning techniques. A challenge was to include performance data obtained by different groups which vary in the applied reaction conditions but vary also in the set of performance indicators that are reported. The thermodynamic ratio was used for analyzing reverse water gas shift reaction as the first stage of CO2 hydrogenation. A tailored Anderson-Schulz-Flory distribution modified by two additional parameters was suggested based on the data and applied for describing hydrocarbon production. The data analysis indicated the existence of direct CO2 conversion to hydrocarbons via the FT mechanism for some catalysts. It was shown that the chain growth probability as the key parameter of catalyst selectivity slightly depends on reaction condition (temperature, pressure, H2:CO2 ratio) and is mainly defined by catalyst composition, method of catalyst preparation, nature of active sites and pretreatment conditions. With respect to the catalyst composition, it was found that doping catalysts by alkali metals like K or Na is the most effective measure to improve catalyst performance leading to increased chain growth probability, increased olefins content and a decrease of undesired CH4 formation.
Hunting for fun (2008)

The design of online collaborative computer games and pervasive games can learn from the everyday practice of deer hunting. We present an ethnographic study revealing how hunters fine-tune their experience through temporal and spatial organization. The hunt is organized in a way that allows the hunters to balance between forms of collaboration ranging from solitude to face-to-face interaction, as well as between attentiveness and relaxation. Thus, the hunters deal with the task -- hunting down the prey -- while managing issues of enjoyment. We argue that understanding these experiential qualities is relevant for collaborative gaming, and adds to our understanding of leisure.
QPCR: Application for real-time PCR data management and analysis (2009)

We have developed a web-based system designed to enhance and facilitate the analysis of qPCR experiments. It covers the complete analysis workflow combining parsing, analysis, and generation of charts into one single application. The system is freely available at http://genome.tugraz.at/QPCR.
Improving quality control and data understanding of a large OBN survey through unsupervised machine learning (2020)

Summary Given the nature of operational complexity, raw OBN field data received from the acquisition crew often comes with quality problems such as noisy nodes, abnormal instrument response, and positioning errors. Even in relatively small amounts, these problems can become an issue in processing work if they are not detected and corrected at an early stage. In standard target-oriented OBN surveys, manual inspection of amplitude maps measured from the field records is often used to identify anomalously bad nodes for rejection, but this approach becomes impractical on large, regional-scale OBN surveys, such as the multi-year OBN acquisition campaign at offshore Abu Dhabi with hundreds of thousands of receiver gathers. Machine learning approaches can provide practical alternative quality control (QC) tools for identifying problems in field data. By combining the multivariate Gaussian distribution method, principal component analysis (PCA) and K-means clustering, we were able to identify bad nodes using receiver amplitude maps generated from field records. We also demonstrate the application of such tools for removing bad first-break (FB) picks to improve the first-break tomography result.
Adaptive Output Formation-Tracking of Heterogeneous Multi-Agent Systems Using Time-Varying $\mathcal {L}_{2}$ -Gain Design (2018)

This letter investigates the adaptive output formation-tracking problem of general linear heterogeneous multi-agent systems (MAS). The leader's dynamics are only known to its neighboring followers. All followers are assumed to be non-introspective, i.e., they have no self-knowledge, and only receive relative output information from neighbors. First, both the desired formation and the formation reference, i.e., the leader's output trajectory, can be time-varying. Then, we provide the sufficient conditions for the existence of a distributed controller to guarantee the adaptive time-varying output formation-tracking of heterogeneous MAS with an unknown leader. Finally, we develop a time-varying L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> -gain design problem to achieve the adaptive output formation-tracking. The local design procedures are rigorously derived in terms of solving novel time-varying matrix Riccati differential equations.
An innovative approach to the use of intermediaries : lessons from Zimbabwe (2011)

Zimbabwe has followed the South African initiative of introducing an intermediary into the court to assist child witnesses with testifying. However, it has made certain unique adaptations to the system by training interpreters to act as intermediaries and using infrastructures that already exist within the Department of Justice. As part of a Masters research, the intermediary system in Zimbabwe was investigated to determine its efficacy.
Establishment of the Scientific Underpinnings in Powder Injection Molding and Liquid Phase Sintering (2006)

Powder injection molding and liquid phase sintering share common features with respect to the rheological response of the solid-liquid-pore system. Injection molding of powders dates from the 1930s, and liquid phase sintering of metallic powders dates from about that same time. Both processes share a strong sensitivity of viscosity to solid content and temperature, but there are differences. Accordingly, a model is introduced that includes factors as strain rate, grain size, solid content, and degree of grain bonding. In liquid phase sintering there is solid solubility in the liquid, which influences the time-dependent viscosity through grain bonding. Similarly, in powder injection molding the entanglement of long polymers leads to a time-dependent viscosity. Thus, both powder injection molding and liquid phase sintering show similarities that support a model for the rheological response useful in computer simulations.
DONAN DOCUMENTACION DE BENITO JUAREZ A LA UNAM (1989)

EL LICENCIADO GUILLERMO HURTADO PRIDA, TATARANIETO DE BENITO JUAREZ, DONO 23 CARPETAS QUE CONTIENEN LAS CARTAS DE PERSONAJES ILUSTRES DE LA EPOCA EN QUE GOBERNO EL EMERITO PRESIDENTE.
Vicryl (polyglactin 910) mesh as a dural substitute (1985)

Many substances have been used as dural substitutes. Although the various materials are effective in a variety of settings, a material that is absorbed over time, elicits minimal inflammatory reaction, is relatively inexpensive, and is easily manipulated would be beneficial. An experimental project was conducted involving closure of dural defects in dogs with a Vicryl (polyglactin 910) mesh graft. Macroscopic and histological examination performed at various times after placement revealed resorption of the graft material, little cerebromembranous adhesion formation, and complete lack of injury to subjacent cortical zones. A substantial neomembrane forms over the zone of the mesh graft. The authors suggest that Vicryl mesh has significant potential as an absorbable, minimally reactive dural substitute.
A novel technique to determine second-order optical nonlinearity profiles (2003)

We report a novel technique to determine uniquely the second-order nonlinearity profile of nonlinear films. Applied to a thermally poled silica sample, it reveals a stronger coefficient d/sub 33/ (0.8 pm/V) than previously reported and important new profile features. Thermal poling is an interesting and potentially important technique used to induce a second-order optical nonlinearity in silica. This new and powerful technique is predicted to measure the nonlinearity and the nonlinearity profile of poled glasses and other nonlinear films.
Minireview: The Melanocortin 2 Receptor Accessory Proteins (2009)

The melanocortin 2 receptor (MC2R) accessory protein, MRAP, is one of a growing number of G protein-coupled receptor accessory proteins that have been identified in recent years that add control and complexity to G protein-coupled receptor functional expression and signal transduction. MRAP interacts directly with MC2R and is essential for its trafficking from the endoplasmic reticulum to the cell surface, where it acts as the receptor for the pituitary hormone ACTH. In addition, MRAP2, a newly described homolog of MRAP, is also able to support the cell surface expression of MC2R. Although it is clear that MRAP is required for MC2R function, the mechanism of MRAP action is only beginning to be understood. Recent work has started to reveal some of these mechanisms and the MRAP domains involved in MC2R functional expression, and new data have shown a potential role for both MRAP and MRAP2 in the regulation of the other melanocortin receptors.
Investigations for Fine Mapping of Amplifications in Chromosome 3q26.3–28 Frequently Occurring in Squamous Cell Carcinomas of the Head and Neck (2002)

By FISH, the amplification of chromosomal material on 3q could be fine mapped on a narrow band on 3q26.3-27. This aberration can be considered as a breakpoint in tumorigenesis. Putative candidate oncogenes and tumor suppressor genes located in this region might be a target for mutations leading to tumor progression.
Pre-shared Key Agreement for Secure Public Wi-Fi (2017)

This paper presents a novel pre-shared key (PSK) agreement scheme to establish a secure connection between a Wi-Fi client and access point (AP) without prior knowledge of a password. The standard IEEE 802.11 security method, Robust Security Network Association, widely known as Wi-Fi Protected Access (WPA) and WPA2, derives a shared cryptographic key if and only if a user provides an identical password which an AP possesses, causing ofinconvenience of obtaining and entering the password. In this paper, a proposed scheme, Secure Open AP (SOAP), adopts two public key algorithms, the elliptic curve Diffie-Hellman key exchange algorithm (ECDH) and digital signature algorithm (ECDSA) to establish a secure connection between a client and an AP without having prior knowledge of a password. Implementation and experiment results demonstrate the viability of the proposed scheme.
Common Angle Image Gather - a Strategy for Imaging Complex Media (1998)

Common image panels are commonly used for migration based velocity analysis and for migration based AVO analysis. The advantages of common offset image gather with respect to common shot image gathers are now well established [4] but also their poor quality in case of complex models [3]. The reasons of this failure may appear when the problem is analyzed in the frame of the asymptotic linearized inverse theory [7, 6]. We propose here an analysis of the relevance of common image gather analysis in case of velocity models with triplicated ray fields. We show that individual common shot or common offset may provide inconsistent images of the subsurface, and we propose a strategy for common anale imaging avoiding the former artefacts. Comparisons of common shot, common offset and common angle image gathers are presented for 2D complex Marmousi dataset.
ADMA and oxidative stress are responsible for endothelial dysfunction in hyperhomocyst(e)inemia: effects of ?-arginine and B vitamins (2002)

Objectives: Hyperhomocyst(e)inemia is a risk factor for atherosclerotic vascular disease, and it is associated with endothelial dysfunction. Mechanisms responsible for endothelial dysfunction in hyperhomocyst(e)inemia may involve impaired bioavailability of NO, possibly secondary to accumulation of the endogenous NO synthase inhibitor asymmetric dimethylarginine (ADMA) and increased oxidative stress. We investigated whether oral treatment with B vitamins or L-arginine normalizes endothelium-dependent, flow-dependent vasodilation (FDD) in patients with peripheral arterial occlusive disease (PAOD) and hyperhomocyst(e)inemia. Methods: 27 patients with PAOD and hyperhomocyst(e)inemia were assigned to oral treatment with combined B vitamins (folate, 10 mg; vitamin B-12, 200 mg; vitamin B-6, 20 mg / day), L-arginine (24 g / day) or placebo, for 8 weeks in a double-blind fashion. FDD was determined by high-resolution ultrasound in the radial artery. Results: Vitamin B supplementation significantly lowered plasma homocyst(e)ine concentration from 15.861.8 to 8.761.1 mmol / l (P,0.01). However, B vitamins had no significant effect on FDD (baseline, 7.860.7%, B vitamins, 8.360.9%, placebo 8.960.7%; P5n.s.). In contrast, L-arginine treatment did not affect homocyst(e)ine levels, but significantly improved FDD (10.260.2%), probably by antagonizing the impact of elevated ADMA concentration (3.860.3 mmol / l) and reducing the oxidative stress by lowering urinary 8-iso-prostaglandin F (baseline, 76.367.1 vs. 62.768.3 pmol / mmol creatinine after 8 weeks).
Effects of Surface Treatments of Montmorillonite Nanoclay on Cure Behavior of Diglycidyl Ether of Bisphenol A Epoxy Resin (2013)

Diglycidyl ether of Bisphenol A (DGEBA) based SC-15 epoxy resin was modified with three different commercially available montmorillonite (MMT) nanoclay: Nanomer I.28E and Cloisite 10A and 30B. Cure behavior of nanocomposites was studied using a variety of techniques. Primary focus of this study was to investigate influence of different surface modifications of MMT nanoclay on rheological properties and cure behavior of SC-15 epoxy resin. By adding MMT to SC-15 epoxy resin, chemistry of the epoxy is altered leading to changes in rheological properties and ultimately enthalpy and activation energy of reactions. Addition of Nanomer I.28E delayed gelation, while Cloisite 10A and 30B accelerated gelation, regardless of the curing temperature. Activation energy of reaction was lower with the addition of Nanomer I.28E and Cloisite 10A and higher for Cloisite 30B compared to neat SC-15 epoxy composite.
Absorption and metabolism of dietary phenolics (2006)

Since the early 1990s there has been growing interest in the protective effects of dietary phenolics and flavonoids. In order to assess the potential health benefits of these compounds information is required on the sites of absorption, the metabolic forms in which they are absorbed and their concentrations in the circulatory systems and body tissues. After consumption of onions, which contain flavonol glucosides, the main components being quercetin-4'-O-glucoside (143 mmoles) and quercetin-3,4'-O-diglucoside (107 mmoles), the flavonols undergo rapid metabolism in the small intestine followed by absorption of glucuronidated, sulfated and methylated quercetin metabolites. These metabolites are detected in the bloodstream reaching a Cmax after 1.0–1.5h. Excretion of metabolites in urine over a 24h period indicates that absorption is ˜4% of intake. In subjects with an ileostomy, the major components in ileal fluid after ingestion of onions are quercetin-3-glucuronide, quercetin-3'-sulfate and quercetin in quantities corresponding to ca. 20% of intake, suggesting that absorption is substantially higher than 4%. A comparative study on the absorption an metabolism of 164 mmoles of quercetin-3-rhamnosylglucoside (rutin) in tomato juice showed trace levels of quercetin and methylquercetin glucuronides, but no sulfated metabolites, in plasma with a Tmax of ca. 5h. There was an 85+% recovery of the ingested ruin in ileal fluid and no quercetin metabolites were detected in plasma collected from ileal volunteers These observations indicate that absorption of rutin is more limited than that of quercetin glucosides and that in healthy subjects it takes place on the large intestine. Other studies have demonstrated that colonic bacteria hydrolyse and breakdown rutin to phenolic acids which are excreted in urine in amounts corresponding to 25% of intake.
Improvement of regeneration and transformation systems for Cyclamen persicum using somatic embryo culture (2008)

Cyclamen persicum is one of the most important pot plants in the world. We developed an effective method for somatic embryo-mediated plant regeneration and genetic transformation using Agrobacterium, with somatic embryos as the source of plant material. Numerous somatic embryos were formed from the leaf segments of Cyclamen cv. “Fragrance Mini” 16 weeks after initiation on a 2,4-D- and kinetin-containing medium. The maximum regeneration frequency from the somatic embryos was achieved using a regeneration medium containing 0.1 mg l−1 benzylaminopurine, 0.01 mg l−1 α-naphthaleneacetic acid, and 0.2 mg l−1 gibberellin. After co-cultivating the somatic embryos with Agrobacterium strain LBA4404 (the plasmid vector pIG121Hm) that harbors genes for hygromycin phosphotransferase, neomycin phosphotransferase, and β-glucuronidase, hygromycin-resistant clones were selected on a medium containing 5 mg l−1 hygromycin. Hygromycin-resistant plantlets were regenerated from 14 hygromycin-resistant embryos. Using this transformation system, 74 independent plants were obtained from 1-ml packed cell volume, approximately 2,000 embryos.
A cardiac mapping system for identifying late potentials: correlation with signal averaged surface recordings (2003)

Cardiac late potentials, measured with the signal-averaged ECG, have been strongly correlated with potentially lethal ventricular arrhythmias. A key factor in identifying and quantifying these late potentials is the determination of the end of ventricular depolarization. The goal of this study was to identify the latest moment of ventricular depolarization by comparing a signal-averaged ECG with multielectrode cardiac mapping of infarct regions. The four-day-old, canine myocardial infarction model was used. In 10 of 13 dogs studied, a concordance in timing between the epicardial array and signal-averaged XYZ surface leads was found. In three dogs the lack of concordance is attributed to a poor signal-to-noise ratio of the surface-signal average and its distortion by high-pass filtering, which often eliminates enough signal energy to preclude identification. Further improvements in low-level signal recovery and postaveraging analysis are needed to ensure that cardiac late potentials are fully identified from body-surface recordings.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Overcoming High Nanopore Basecaller Error Rates for DNA Storage Via Basecaller-Decoder Integration and Convolutional Codes (2019)

ABSTRACT As magnetization and semiconductor based storage technologies approach their limits, bio-molecules, such as DNA, have been identified as promising media for future storage systems, due to their high storage density (petabytes/gram) and long-term durability (thousands of years). Furthermore, nanopore DNA sequencing enables high-throughput sequencing using devices as small as a USB thumb drive and thus is ideally suited for DNA storage applications. Due to the high insertion/deletion error rates associated with basecalled nanopore reads, current approaches rely heavily on consensus among multiple reads and thus incur very high reading costs. We propose a novel approach which overcomes the high error rates in basecalled sequences by integrating a Viterbi error correction decoder with the basecaller, enabling the decoder to exploit the soft information available in the deep learning based basecaller pipeline. Using convolutional codes for error correction, we experimentally observed 3x lower reading costs than the state-of-the-art techniques at comparable writing costs. The code, data and Supplementary Material is available at https://github.com/shubhamchandak94/nanopore_dna_storage .
Gamut boundary determination for a color printer using the Face Triangulation Method (2003)

Tasks such as assessing the capabilities of a device or performing gamut mapping require the accurate estimation of device gamut boundaries in colorimetric space. We propose here a new method (which we call the Face Triangulation Method) to estimate the physical gamut boundary of a colour printer. The method has been tested on a real device, using two different paper media, and a common type of Gamut Boundary Descriptor. Given the small number of sample colours used for the estimate, and the high number of test colours employed, we conclude that the results achieved are rather good. We also indicate how to extend the Face Triangulation Method so that the boundary estimation can be further improved either locally or globally.
Dataset supporting the publication "Numerical modelling of a hybrid hollow-core fiber for enhanced mid-infrared guidance" (2024)

This dataset supports the publication by Juliano G. Hayashi, Seyed M. A. Mousavi, Andrea Ventura, and Francesco Poletti, "Numerical modeling of a hybrid hollow-core fiber for enhanced mid-infrared guidance" Optics Express Vol. 29, Issue 11, pp. 17042-17052 (2021) https://doi.org/10.1364/OE.423257 The data is presented in excel file: Data_hybrid_paper.xlsx It supports the raw data that is shown via figures 3-5 in the publication. This project has received funding from the European Research Council (ERC) (grant agreement n° 682724 – LightPipe project), from the EPSRC Airguide Photonics (EP/P030181/1), National Hub in High Value Photonics Manufacturing (EP/N00762X/1), and the Royal Society (Newton International Fellowship – NF170629).