gebhart/patrepeval huggingface dataset:
Implementation of quality improvements and innovations in agricultural enterprises (2022)

This article deals with the implementation of innovations and quality improvements into operations of mainly small and medium-sized enterprises and family farms in the Czech Republic. The aim is to improve the competitiveness of production in internal, European, and global markets, as well as in the context of optimising the settings and recommendations for new subsidies within the Common Agricultural Policy for the forthcoming programming period. The dependence of the use of various forms of innovation in relation to financial crises was investigated, as well as the general (proactive vs. reactive) attitude to innovation, and also mutual operation with Local Action Groups (LAGs) as another source of support. Due to the structure of the obtained data, a general linear model (GLM) was used for the evaluation. Using the methods of advanced statistical testing, the two most important aspects of the implementation of innovations in agriculture enterprises were identified from the obtained data. These two key aspects are: cooperation with the LAG and the use of consultants for processing project applications. Thus, other factors, the size of the farm, the existence of financial problems and the length of farming are not statistically significant. This contribution is intended to help public administration bodies that have a power to set the support conditions for the Rural Development Programme.
Deep Convolutional Neural Network-Based Lymph Node Metastasis Prediction for Colon Cancer Using Histopathological Images (2021)

We established the PTS score, a simplified reproducible parameter, for predicting LNM in colon cancer using computer-based analysis that could be used to guide treatment decisions. These findings warrant further confirmation through large-scale prospective clinical trials.
The Relationship between Sport-Related Concussion and Sensation-Seeking (2020)

Sensation-seeking, or the need for novel and exciting experiences, is thought to play a role in sport-related concussion (SRC), yet much remains unknown regarding these relationships and, more importantly, how sensation-seeking influences SRC risk. The current study assessed sensation-seeking, sport contact level, and SRC history and incidence in a large sample of NCAA collegiate athletes. Data included a full study sample of 22,374 baseline evaluations and a sub-sample of 2037 incident SRC. Independent samples <i>t</i>-test, analysis of covariance, and hierarchical logistic regression were constructed to address study hypotheses. Results showed that (1) among participants without SRC, sensation-seeking scores were higher in athletes playing contact sports compared to those playing limited- or non-contact sports (<i>p</i> < 0.001, <i>R<sup>2</sup></i> = 0.007, η<sup>2</sup><sub>p</sub> = 0.003); (2) in the full study sample, a one-point increase in sensation-seeking scores resulted in a 21% greater risk of prior SRC (OR = 1.212; 95% CI: 1.154-1.272), and in the incident SRC sub-sample, a 28% greater risk of prior SRC (OR = 1.278; 95% CI: 1.104-1.480); (3) a one-point increase in sensation-seeking scores resulted in a 12% greater risk of incident SRC among the full study sample; and (4) sensation-seeking did not vary as a function of incident SRC (<i>p</i> = 0.281, η<sup>2</sup><sub>p</sub> = 0.000). Our findings demonstrate the potential usefulness of considering sensation-seeking in SRC management.
Thermally Driven Nanofuses Based on Organometallic Rotors (2012)

Molecular design of chromium arenes are theoretically studied as a model for the development of novel thermally-driven molecular fuses. This study correlates the switching event with a partial disconnection of the molecule from the metallic electrode mediated by changes in the conformational states of the molecule directed by external stimuli. Moreover, the reversibility of the process (the reconnection to the metallic electrode) is also considered for these systems when a reversal voltage pulse (reset) is applied. The energetic requirements of the on and off states are correlated with temperature through the Arrhenius equation. To carry out this study we performed density functional theory (DFT) calculations.
Modeling a Spatially Correlated Cellular Network with Strong Repulsion. (2017)

We propose a new cellular network model that captures both strong repulsion and no correlation between base stations. The base station locations are modeled as the superposition of two independent stationary point processes: a random shifted grid with intensity $ \lambda_g $ for the repulsive base stations and an independent Poisson point process with intensity $ \lambda_p $ for the uncorrelated base stations. Assuming that users are associated with base stations that provide the strongest average receive signal power, we obtain the probability that a typical user is associated with either a repulsive base station or an uncorrelated base station. Assuming Rayleigh fading channels, we derive the expression for the coverage probability of the typical user. The following three observations can be made. First, the association and coverage probability of the typical user are fully characterized by two system parameters: the intensity ratio $ \rho_\lambda $ and the transmit power ratio $ \eta$. Second, in user association, a bias toward the repulsive base stations exists. Finally, the coverage expression is a monotonically increasing function with respect to the number of repulsive base stations, or the inverse of the intensity ratio $ \rho_\lambda^{-1} $.
Cats and dogs (2012)

We investigate the fine grained object categorization problem of determining the breed of animal from an image. To this end we introduce a new annotated dataset of pets covering 37 different breeds of cats and dogs. The visual problem is very challenging as these animals, particularly cats, are very deformable and there can be quite subtle differences between the breeds. We make a number of contributions: first, we introduce a model to classify a pet breed automatically from an image. The model combines shape, captured by a deformable part model detecting the pet face, and appearance, captured by a bag-of-words model that describes the pet fur. Fitting the model involves automatically segmenting the animal in the image. Second, we compare two classification approaches: a hierarchical one, in which a pet is first assigned to the cat or dog family and then to a breed, and a flat one, in which the breed is obtained directly. We also investigate a number of animal and image orientated spatial layouts. These models are very good: they beat all previously published results on the challenging ASIRRA test (cat vs dog discrimination). When applied to the task of discriminating the 37 different breeds of pets, the models obtain an average accuracy of about 59%, a very encouraging result considering the difficulty of the problem.
Gingival augmentation with an acellular dermal matrix: human histologic evaluation of a case--placement of the graft on bone. (2001)

The goal of this case report is to evaluate the effectiveness of gingival augmentation with an acellular dermal matrix. The acellular dermal matrix was placed on a periosteal bed. Clinically, the procedure did not result in an increase in the amount of keratinized tissue. There was an increase in the tissue bulk, but the importance of this increase is unknown. Histologic evaluation revealed that the acellular dermal matrix did not slough and was involved in healing. Based on this evaluation, the technique of placing an acellular dermal matrix on a periosteal bed does increase the bulk of tissue in the area. However, the procedure does not seem to be an effective method to increase the amount of keratinized tissue.
Sistema para aquisição e processamento de sinais para caracterização de materiais por ultrassom (2017)

OBJETIVO: O presente trabalho teve por objetivo o desenvolvimento do circuito de alimentacao a ser utilizado no sistema portatil de ultrassom para caracterizacao de materiais que vem sendo desenvolvido no Laboratorio de Ultrassom (LUS/CPGEI-UTFPR). METODOS: Foram feitas modificacoes no projeto dos circuitos de potencia a serem utilizados na alimentacao dos modulos de transmissao e recepcao utilizando-se um conversor DC/DC proporcional de alta tensao XP Power FS05CT-12, configurado para operar com entrada de 6V e saida de aproximadamente ±185V. RESULTADOS: Os circuitos foram montados em protoboard , testados e foi feita uma documentacao de seu funcionamento, objetivando facilitar a compreensao de futuros pesquisadores do projeto. O dimensionamento dos componentes levou em consideracao a natureza portatil do projeto, de modo a ser capaz de operar plenamente por meio de um banco de baterias. CONCLUSOES: Os resultados dos testes realizados indicaram o funcionamento adequado do sistema e permitem a continuidade do projeto com a confeccao das placas de circuito impresso e finalizacao do firmware de controle do prototipo baseado no microcontrolador F28M35H52C1 da Texas Instruments.
Influence of Cerium on the Formation of Micro-Galvanic Corrosion Elements of AZ91 (2011)

Investigations of AZ91D revealed a strong influence of mainly the following microstructural parameters on corrosion: porosity, the eutectic, the Al-content of the Mg-phase as well as the volume fraction and distribution of gamma-Al 12 Mg 17 . Further an improved corrosion resistance was observed by the addition of rare earth elements. The influence of Ce on microstructure and corrosion of sand cast and high pressure die cast AZ91D with 0.5-2.0 wt.% Ce was investigated by SEM before and after potentiodynamic polarization measurements in pH7.5 (bi-distilled water adjusted with KOH). It was observed that Ce significantly improved the corrosion resistance by changing the microstructure. A strong influence of Ce on the average grain size, the fraction of the eutectic, changes in morphology and/or volume fraction of gamma Al 12 Mg 17 and formation of a Ce-rich intermetallic phase was observed. Therefore, not only the chemical composition but also the change of microstructure and the formation of micro-galvanic elements influence the local corrosion mechanism of AZ91D with cerium.
Thermal Injury and Recovery of Salmonella typhimurium and Its Effect on Enumeration Procedures (1969)

Exposure of Salmonella typhimurium 7136 to sublethal heating produced a temporary change in the tolerance of the organism to a particular stress medium. After sublethal heat treatment at 48 C for 30 min, greater than 90% of the viable population was unable to reproduce on Levine Eosin Methylene Blue Agar containing 2% NaCl. This sensitivity was dependent on the pH of the heating menstruum. In addition, the heated cells displayed a sensitivity to Brilliant Green Agar, Levine Eosin Methylene Blue Agar, Salmonella-Shigella Agar, and Desoxycholate Citrate Agar. Unheated cells displayed a sensitivity to Brilliant Green Agar, Salmonella-Shigella Agar, and Desoxycholate Citrate Agar. When the injured cells were placed in a suitable medium (Trypticase Soy Broth), they recovered and grew at a rate equal to that of normal cells. Recovery was also possible in Nutrient Broth, Lactose Broth, and Lauryl Tryptose Broth. Although recovery of the injured cell occurred in Tetrathionate Broth and Selenite F Broth, they were less than ideal growth media for the organism.
New TIT Capacitor with ZrO2/Al2O3/ZrO2 dielectrics for 60nm and below DRAMs (2006)

New ZrO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Al <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /ZrO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> (ZAZ) dielectric film was successfully developed for DRAM capacitor dielectrics of 60nm and below technologies. ZAZ dielectric film grown by ALD has a mixture structure of crystalline phase ZrO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> and amorphous phase Al <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> in order to optimize dielectric properties. ZAZ TIT capacitor showed small Tox.eq of 8.5 Aring and low leakage current density of 0.35fA/cell, which meet leakage current criteria of 0.5fA/cell for mass production. ZAZ TIT capacitor showed smaller cap leak fail bit than HAH capacitor and stable leakage current up to 550degC anneal. TDDB (time dependent dielectric breakdown) behavior reliably satisfied the 10-year lifetime criteria within operation voltage range
Platinum Antitumor Complexes: 50 Years Since Barnett Rosenberg's Discovery (2015)

Author(s): Muggia, Franco M; Bonetti, Andrea; Hoeschele, James D; Rozencweig, Marcel; Howell, Stephen B
Birefringence in graded-index monomode fibres with elliptical cross-section (1980)

A general expression is presented for the phase difference between the two polarisation states of the fundamental mode on a monomode fibre with arbitrary refractive-index profile and elliptical cross-section. Numerical results indicate that the degree of circularity required of a practical fibre to achieve a given bandwidth may be less than that predicted by assuming a step-index profile.
Influence of field dependent mobility and buffer isolation resistance on high frequency performances of GaAs MESFET's (1977)

The aim of this paper is to present an analytical model which describes the dynamical properties of GaAs MESFET. First the admittance matrix of the active unsaturated region is derived from a new wave equation which includes the mobility dependence on the electric field. Second the admittance matrix of the whole device is calculated. Leakage effects across the buffer layer are considered. It turns out that variations of the admittance and scattering parameters as well as the power gain variations with drain current are accurately predicted. The gain peaks at a drain current value close to I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DSS</inf> which is attributed to the combined influence of field dependent mobility and parasitic stray. It is pointed out that devices with perfectly insulating buffer can exhibit a microwave power gain which is 5 dB higher than in real devices.
Anterior segment optical coherence tomography for demonstrating posterior capsular rent in posterior polar cataract (2014)

AS-OCT could be an additional useful imaging modality in these patients, essential for surgical planning and patient consultation.
Iron Complexes of Dendrimer-Appended Carboxylates for Activating Dioxygen and Oxidizing Hydrocarbons (2008)

The active sites of metalloenzymes are often deeply buried inside a hydrophobic protein sheath, which protects them from undesirable hydrolysis and polymerization reactions, allowing them to achieve their normal functions. In order to mimic the hydrophobic environment of the active sites in bacterial monooxygenases, diiron(II) compounds of the general formula [Fe2([G-3]COO)4(4-RPy)2] were prepared, where [G-3]COO- is a third-generation dendrimer-appended terphenyl carboxylate ligand and 4-RPy is a pyridine derivative. The dendrimer environment provides excellent protection for the diiron center, reducing its reactivity toward dioxygen by about 300-fold compared with analogous complexes of terphenyl carboxylate ([G-1]COO-) ligands. An FeIIFeIII intermediate was characterized by electronic, electron paramagnetic resonance, Mössbauer, and X-ray absorption spectroscopic analyses following the oxygenation of [Fe2([G-3]COO)4(4-PPy)2], where 4-PPy is 4-pyrrolidinopyridine. The results are consistent with the formation of a superoxo species. This diiron compound, in the presence of dioxygen, can oxidize external substrates.
Regional flood frequency estimation and network design (1981)

The use of probability weighted moments has been investigated for improving estimates of flood recurrence quantile events in both gauged and ungauged basins. Regional estimates at gauged sites are improved over more conventional methods such as method of moments and maximum likelihood estimation. An improved method for ungauged basins is proposed which incorporates both probability weighted moment techniques with more traditional mean peak flow estimation. The question of network design in terms of number of sites and number of years of record is reexamined in light of the probability weighted moment techniques.
Single-Cell Codetection of Metabolic Activity, Intracellular Functional Proteins, and Genetic Mutations from Rare Circulating Tumor Cells (2015)

The high glucose uptake and activation of oncogenic signaling pathways in cancer cells has long made these features, together with the mutational spectrum, prime diagnostic targets of circulating tumor cells (CTCs). Further, an ability to characterize these properties at a single cell resolution is widely believed to be essential, as the known extensive heterogeneity in CTCs can obscure important correlations in data obtained from cell population-based methods. However, to date, it has not been possible to quantitatively measure metabolic, proteomic, and genetic data from a single CTC. Here we report a microchip-based approach that allows for the codetection of glucose uptake, intracellular functional proteins, and genetic mutations at the single-cell level from rare tumor cells. The microchip contains thousands of nanoliter grooves (nanowells) that isolate individual CTCs and allow for the assessment of their glucose uptake via imaging of a fluorescent glucose analog, quantification of a panel of intracellular signaling proteins using a miniaturized antibody barcode microarray, and retrieval of the individual cell nuclei for subsequent off-chip genome amplification and sequencing. This approach integrates molecular-scale information on the metabolic, proteomic, and genetic status of single cells and permits the inference of associations between genetic signatures, energy consumption, and phosphoproteins oncogenic signaling activities in CTCs isolated from blood samples of patients. Importantly, this microchip chip-based approach achieves this multidimensional molecular analysis with minimal cell loss (<20%), which is the bottleneck of the rare cell analysis.
Inverse Methode zur Charakterisierung des mechanischen Frequenzverhaltens isotroper Werkstoffe (2016)

Zusammenfassung Es wird ein Verfahren zur Charakterisierung der Frequenzabhängigkeit der mechanischen Eigenschaften von Festkörpern (Viskoelastizität) vorgestellt. Insbesondere Kunststoffe zeigen häufig ein ausgeprägtes viskoelastisches Verhalten. Die Identifikation der frequenzabhängigen mechanischen Materialparameter erfolgt durch die Inverse Methode, welche auf der Anpassung von Simulationsergebnissen an zuvor durchgeführte Messungen beruht. Hierzu werden durch einen Optimierungsalgorithmus die Simulationsparameter schrittweise variiert. In diesem Beitrag wird eine angepasste Inverse Methode sowie die generelle Vorgehensweise der Materialcharakterisierung erläutert. Zudem werden viskoelastische Materialmodelle diskutiert und ihre Eignung anhand eines exemplarischen Werkstoffs geprüft.
OmniLedger: A Secure, Scale-Out, Decentralized Ledger via Sharding (2018)

Designing a secure permissionless distributed ledger (blockchain) that performs on par with centralized payment processors, such as Visa, is a challenging task. Most existing distributed ledgers are unable to scale-out, i.e., to grow their total processing capacity with the number of validators; and those that do, compromise security or decentralization. We present OmniLedger, a novel scale-out distributed ledger that preserves longterm security under permissionless operation. It ensures security and correctness by using a bias-resistant public-randomness protocol for choosing large, statistically representative shards that process transactions, and by introducing an efficient cross-shard commit protocol that atomically handles transactions affecting multiple shards. OmniLedger also optimizes performance via parallel intra-shard transaction processing, ledger pruning via collectively-signed state blocks, and low-latency "trust-but-verify" validation for low-value transactions. An evaluation of our experimental prototype shows that OmniLedger's throughput scales linearly in the number of active validators, supporting Visa-level workloads and beyond, while confirming typical transactions in under two seconds.
Location-based distributed sleeping cell detection and root cause analysis for 5G ultra-dense networks (2016)

The sleeping cell problem is one of the most critical issues for cellular deployments, consisting in the outage of a cellular station, which, conversely, works properly from the point of view of the monitoring system. This problem is often not detectable by the operators, and it could lead to severe degradations in the service provision in the long term. This issue has been commonly managed by the centralized analysis of network performance indicators. However, those solutions are unsuitable for the new ultra-dense small cell scenarios that will characterize 5G deployments. New approaches are required to cope with the high level of cell overlapping as well as the huge number of sites to be managed. In this context, a novel mechanism to detect sleeping cell issues is proposed, which takes advantage of the recent advances in indoor localization as well as monitoring data obtained by user equipments. In addition, a root cause analysis of the cell failure is presented. The capabilities of the proposed approach are evaluated in a realistic key scenario, showing the feasibility and usefulness of the proposed location-based approach.
Towards 20% Solar Cell Efficiency Using Silicon from Metallurgical Process Route (2014)

In this work we present high efficient silicon solar cells based on low-cost UMG-Si purified by the metallurgical process route of Elkem Solar with efficiencies close to 20%. Solar cells were fabricated by two different PERC solar cell process sequences using only processes steps which are already well-known in industry and transferable to mass production. Simultaneously solar cells were fabricated by the state-of-the-art full Al-BSF process as reference. The investigated wafers were cut from a Cz grown crystal based on UMG-Si blended with 40% poly silicon and were compared to 100% poly-Si wafers. It is shown that applying PERC processes to the silicon wafers can enhance the cell efficiency by 0.8% absolute to reach average cell efficiencies of 19.8% and thus demonstrates the excellent quality of the fabricated c-Si solar cells. Furthermore it is proven that UMG-Si does not show feedstock-related limitations to high efficiency concepts such as the PERC process. To our knowledge these results present the highest obtained cell efficiencies for silicon solar cells based on UMG-Si so far. Studies of light induced degradation of PERC and full Al-BSF solar cells from both kinds of feedstock were conducted to determine the influence of recombination active boron-oxygen complexes on the respective solar cell performance. The obtained results reveal higher losses for PERC solar cells, which can be explained by the higher sensitivity of PERC solar cells to changes of the bulk lifetime. This is also confirmed by PC1D simulations.