gebhart/patrepeval huggingface dataset:
Reduction of Pitch Motion of FPSO Vessels by Innovative OWC Passive Control (2014)

The improvement of the seakeeping capabilities of Floating, Production, Storage and Offloading (FPSO) vessels increases safety and allows its operation on severe weather conditions. It also increases the fatigue life of the risers. Hence, any improvement on the FPSO motion is mostly welcome. Guimarães [1], following similar efforts by Silva [2], studied the reduction of pitch motions of FPSO vessels with the use of the OWCs (Oscillating Water Columns) passive system. However, both experimental and numerical results were inconclusive due to green water effects during experiments and panel issues with the panel code WAMIT [3], respectively. The objective of the present work is to report a series of new tests that prove the feasibility of an “L-shaped” moon pool concept and estimates and tests the ideal length of such concept that maximizes the restoring moment and minimizes pitch the most. The tests were conducted in the Laboratório de Ondas e Correntes (Laboratory of Waves and Currents) of the Federal University of Rio de Janeiro (COPPE/UFRJ).
Metal-organic hybrid metamaterial THz imaging band translators (2015)

We investigate the feasibility of negative photoresist as a structural material in metal-organic hybrid THz imaging detectors using SU-8. We will discuss design of metamaterials for MEMS-based terahertz (THz) thermal sensors and design and microfabrication process for building SU8-based MEMS THz focal plane arrays. Metamaterials of this kind, exhibiting absorption properties comparable to those of resonant metamaterials made using traditional thin films, coupled with the applicability of SU-8 as a structural material, offer possibilities for quick, simple microfabrication of focal plane arrays of THz imaging detectors. SU-8 is a low-cost material that can quickly be spun onto a substrate at a wide range of thicknesses and photolithographically patterned into a variety of structures. This removes the need for both PECVD deposition and plasma etching, dramatically increasing the speed and lowering the cost of production of such FPAs. We further investigate feasibility of use of such detectors as band translators rather than traditional bimaterial devices. Translators would be optically probed with an infrared (IR) camera. Individual pixels would absorb THz radiation, heat up and the thermal image would be projected onto an infrared camera, effectively translating the image from THz into IR.
Supercritical Fluids in Catalysis: Opportunities of In Situ Spectroscopic Studies and Monitoring Phase Behavior (2003)

A number of homogeneous and heterogeneous catalytic reactions have been successfully performed in supercritical fluids (SCFs). An overview on recent developments in the areas of alkylation, isomerization, hydrogenation, partial oxidation, amination, and CO2-fixation using heterogeneous catalysts and supercritical fluids is given. Additionally, strategies towards a more fundamental understanding of catalytic reactions in supercritical fluids are outlined. One aspect is the identification of phase behavior in such multicomponent systems. Their complexity and the input of in situ monitoring is discussed. It is proposed that binary fluid mixtures are an ideal guide for simplifying and understanding the phase behavior in reaction mixtures. In order to strengthen the future use of this knowledge, e.g., for optimization of reactions in SCFs, an overview on the different topologies of binary mixtures is given. Another aspect is in situ characterization of the catalytic reaction and their intermediates, the intermolecular interactions in the fluid, the heterogeneous catalyst phase, and the solid/fluid interphase. The opportunities of various available spectroscopic tools, applicable in situ, are also reviewed by referring to examples from homogeneous catalysis or low-pressure studies.
Use of repetitive DNA sequences to distinguish<i>Mus musculus</i>and<i>Mus caroli</i>cells by<i>in situ</i>hybridization (1983)

Mammalian chimaeras have proved useful for investigating early steps in embryonic development. However, a complete clonal analysis of cell lineages has been limited by the lack of a marker which is ubiquitous and can distinguish parental cell types in situ. We have developed a cell marker system which fulfils these criteria. Chimaeric mice were successfully produced from two mouse species which possess sufficient genetic differences to allow unequivocal identification of parental cell types. DNA-DNA in situ hybridization with cloned, species-specific sequences was performed to distinguish the parental cell types. We have identified a cloned, Mus musculus satellite DNA sequence which shows hybridization differences between Mus musculus and Mus caroli DNA. This clone was used a a probe in in situ hybridizations to bone marrow chromosomes from Mus musculus, Mus caroli, and an interspecific F1 hybrid. The clone could qualitatively distinguish Mus musculus from Mus caroli chromosomes after in situ hybridization, even when they were derived from the same F1 hybrid cell. Quantitation of this hybridization to interphase nuclei from bone marrow spreads indicates that the probe can successfully distinguish Mus musculus from Mus caroli cells and can determine the percentage contribution of Mus musculus in mixtures of bone marrow cells of these species and in chimaeric bone marrow cell preparations.
An efficient bitmap encoding scheme for selection queries (1999)

Bitmap indexes are useful in processing complex queries in decision support systems, and they have been implemented in several commercial database systems. A key design parameter for bitmap indexes is the encoding scheme, which determines the bits that are set to 1 in each bitmap in an index. While the relative performance of the two existing bitmap encoding schemes for simple selection queries of the form “v1 ≤ A ≤ v2” is known (specifically, one of the encoding schemes is better for processing equality queries; i.e., v1 = v2, while the other is better for processing range queries; i.e., v1 < v2), it remains an open question whether these two encoding schemes are indeed optimal for their respective query classes in the sense that there is no other encoding scheme with better space-time tradeoff. In this paper, we establish a number of optimality results for the existing encoding schemes; in particular, we prove that neither of the two known schemes is optimal for the class of two-sided range queries. We also propose a new encoding scheme and prove that it is optimal for that class. Finally, we present an experimental study comparing the performance of the new encoding scheme with that of the existing ones as well as four hybrid encoding schemes for both simple selection queries and the more general class of membership queries of the form “A ∈ {v1, v2, .…, vk}”. These results demonstrate that the new encoding scheme has an overall better space-time performance than existing schemes.
Improved field emission of CNTs on heated substrate for medical x-ray imaging application (2012)

For the next generation x-ray imaging system, small focal spot combined with fast switching electron emitter is desired to obtain high resolution images and minimize motion-induced blurring of images of moving organs such as the heart. Carbon nanotubes (CNTs) have the potential to be excellent emitters for novel x-ray imaging applications that overcome the limitations imposed by conventional thermal emitters. One of the challenges for achieving high emission current from CNT is the early breakdown of emitters due to the Joule heating of the CNT/substrate interface, field evaporation of CNTs and subsequent formation of ions leading to arcing. CNT emitters require emission stability and reproducibility.
Adaptive-type and -rate modulation and channel coding tradeoffs for speech communication (2003)

The objective of this paper is to show the effect on speech quality by examining the tradeoff between the coding gain, provided by channel coding, and modulation adjustments, such as rate- and type-changes. Two basic types of systems are utilized to examine the performance tradeoffs. The first system performs a tradeoff between the voice codec and channel codec bit rates, but with a fixed symbol rate modulation (FRM). The second system is represented by a similar adaptive-rate voice codec as in the first system, but with fixed-rate channel coding and adaptive-rate modulation (ARM). Within both the FRM and ARM systems, we also examine the effect of changing modulation type. For this study, power-efficient and bandwidth-efficient modulation signaling sets are considered. For the power-efficient modulation, we utilized M-ary pulse position modulation (PPM) types. M-ary quadrature amplitude modulation (QAM) types were utilized for the bandwidth efficient modulations. In addition, orthogonal frequency division multiplexing (OFDM) was utilized as the method to format and multiplex the digital data at baseband. Simulation results show, for higher order modulations, that the ARM and FRM approaches, respectively, work best for power-efficient and bandwidth-efficient modulations.
Principles and issues related to SBS-PCM based self-navigation of lasers on injected pellets (2013)

Current status of recently proposed novel approach to inertial fusion energy technology, where phase conjugating mirrors generated by stimulated Brillouin scattering are employed to take care of automatic self-navigation of every individual laser beam on injected pellets, has been reviewed. This novel technology is of a particular importance to the direct drive schemes of pellets irradiation as assumed, e.g., in HiPER project. If successful also in its full scale realization, such an aiming scheme would greatly reduce the technical challenges of adjusting large and heavy optical elements on each shot in a system with a repetition rate of at least several Hertz. In the gradual step-by-step tuning of this technology, in this paper a close attention has been paid to the unconverted basic harmonic issue with a special Faraday isolator design proposed. However, a practical realization of this component in its simplest form might be somewhat difficult to achieve due to a suitable optical material shortage. Hence, a more elaborate scheme of this isolator which would make its realization much more realistic even for optical materials currently available has been examined and will be presented.
Pseudo-Permutations II: Geometry and Representation Theory (2008)

In this paper, we provide the second part of the study of the pseudo-permutations. We first derive a complete analysis of the pseudo-permutations, based on hyperplane arrangements, generalizing the usual way of translating the permutations. We then study the module of the pseudo-permutations over the symmetric group and provide the characteristics of this action.
Characterization of photonic nanostructures used as surface-enhanced Raman substrates for bacterial spores (2004)

Efforts to develop a single solution for detecting hazardous chemicals and biological organisms for both military and civilian communities often produce conflicting requirements. The detection of biological threats, specifically spores, presents us with the most challenging problem. Raman spectroscopy is an excellent method for unique chemical and biological identification. The applicability of Raman spectroscopy to bacterial identification and analysis has been previously demonstrated. Surface-enhanced Raman scattering (SERS) is a well-known method for improving the signal level in Raman scattering. In order to form a uniform noble metal surface architecture, and therefore reproducible surface enhanced spectra, novel fabrication techniques have been developed. Here we report on our recent efforts using silver-shells around latex spheres as a SERS substrate for bacterial endospores.
Effects of exposure to vehicle exhaust on health. (1987)

Exposure to combustion engine exhaust and its effect on crews of roll-on roll-off ships and car ferries and on bus garage staff were studied. The peak concentrations recorded for some of the substances studied were as follows: total particulates (diesel only) 1.0 mg/m3, benzene (diesel) 0.3 mg/m3, formaldehyde (gasoline and diesel) 0.8 mg/m3, and nitrogen dioxide (diesel) 1.2 mg/m3. The highest observed concentration of benzo(a)pyrene was 30 ng/m3 from gasoline and diesel exhaust. In an experimental study volunteers were exposed to diesel exhaust diluted with air to achieve a nitrogen dioxide concentration of 3.8 mg/m3. Pulmonary function was affected during a workday of occupational exposure to engine emissions, but it normalized after a few days with no exposure. The impairment of pulmonary function was judged to have no appreciable, adverse, short-term impact on individual work capacity. In the experimental exposure study, no effect on pulmonary function was observed. Analyses of urinary mutagenicity and thioether excretion showed no sign of exposure to genotoxic compounds among the occupationally exposed workers or among the subjects in the experimental study.
1793: Imaging Calculi with non-contrast CT scan - are we Missing Duplicated Ureters? (2007)

You have accessJournal of UrologyPodium 48, Wednesday, May 23, 2007 10:00 am - 12:00 pm1 Apr 20071793: Imaging Calculi with non-contrast CT scan - are we Missing Duplicated Ureters? Brian H. Eisner, Mehrine Shaikh, Raul N. Uppot, Dushyant V. Sahani, and Stephen P. Dretler Brian H. EisnerBrian H. Eisner More articles by this author , Mehrine ShaikhMehrine Shaikh More articles by this author , Raul N. UppotRaul N. Uppot More articles by this author , Dushyant V. SahaniDushyant V. Sahani More articles by this author , and Stephen P. DretlerStephen P. Dretler More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)31981-5AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "1793: Imaging Calculi with non-contrast CT scan - are we Missing Duplicated Ureters?." The Journal of Urology, 177(4S), p. 596 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 177Issue 4SApril 2007Page: 596 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information Brian H. Eisner More articles by this author Mehrine Shaikh More articles by this author Raul N. Uppot More articles by this author Dushyant V. Sahani More articles by this author Stephen P. Dretler More articles by this author Expand All Advertisement PDF downloadLoading ...
Guida pratica alla prevenzione e gestione dell’infezione da COVID-19 nelle persone con diabete (2020)

Sommario La pandemia di COVID-19 rappresenta un’enorme sfida per il sistema sanitario nazionale. Sulla base dei dati ad oggi disponibili è emerso che le persone con diabete mellito presentano un maggior rischio di complicanze e morte per COVID-19. Pertanto, adottare misure preventive di igiene e di distanziamento sociale è cruciale, a maggior ragione in questa categoria di soggetti. A sostegno dei pazienti con diabete sono state intraprese molteplici iniziative al fine di garantire la continuità assistenziale, tra cui la proroga della validità dei piani terapeutici per i farmaci ipoglicemizzanti, le procedure per il rinnovo della patente di guida e l’attivazione di servizi di telemedicina. In caso di infezione da COVID-19 e sintomi lievi è possibile una gestione domiciliare della persona con diabete, raccomandando un attento monitoraggio glicemico. Il paziente diabetico che necessita di ospedalizzazione richiede una gestione multidisciplinare che includa il diabetologo, con l’obiettivo di mantenere un adeguato controllo glicemico in assenza di ipoglicemie. Le persone con diabete rappresentano un gruppo vulnerabile per il quale devono essere poste in atto strategie specifiche sia in termini di prevenzione che di trattamento.
Characterization and Monitoring Data for Evaluating Constructed Emergent Sandbar Habitat in the Missouri River Mainstem (2008)

Emergent sandbar habitat (ESH) in the Missouri River Mainstem System is a critical habitat element for several federally listed bird species: the endangered interior least tern (Sterna antillarum) and the threatened Northern Great Plains piping plover (Charadrius melodus). The Army Corps of Engineers (Corps) provides the primary operational management of the Missouri River and is responsible under the Endangered Species Act (ESA) to take actions within its authorities to conserve listed species. To comply with the 2000 USFWS BiOp and the 2003 amended USFWS BiOp, the Corps has created habitats below Gavins Point Dam using mechanical means. Initial monitoring indicates that constructed sandbars provide suitable habitat features for nesting and foraging least terns and piping plovers. Terns and plovers are using constructed sandbars and successfully reproducing at or above levels stipulated in the BiOp. However, whether such positive impacts will persist cannot yet be adequately assessed at this time.
Molecular Orientation in Langmuir Monolayers Containing the [M(dmit)<sub>2</sub>]<sup><i>n</i>-</sup>Anion Determined from Surface Pressure and Surface Potential Isotherms (1999)

The behavior of three dmit containing semiamphiphilic salts ([Ni(dmit)2][DDI]2, [Ni(dmit)2][DDI], [Pd(dmit)2][DDI]2) has been investigated in detail at the air−water interface. An osmotic equation of state was fitted to the liquid expanded regions of the π−A isotherms, while the surface potential isotherms were analyzed using the Helmholtz equation (HE). A molecular orientation was proposed for each material based on the cross-sectional areas calculated from the equation of state, and these were consistent with the apparent dipole moments calculated from the HE. The behavior of the palladium salt was found to differ from that of the two nickel salts, with plots of isotherm gradient against water content being coincident for the nickel salts but not so for the palladium containing material. This was explained as being due to the almost identical lipid−lipid Lucassen−Reynders (LR) interaction coefficients calculated for the two nickel salts, which differed significantly from the coefficient calculated for the palladium derivative. The magnitudes of the coefficients were qualitatively in agreement with the molecular orientations proposed.
Decreased Levels of Active SMAD2 Correlate with Poor Prognosis in Gastric Cancer (2012)

Loss of P-Smad2C tightly correlated with cancer invasion and poor differentiation in gastric cancer. Contrary to colorectal and hepatocellular carcinoma, canonical carboxy-terminal phosphorylation, but not linker phosphorylation, of Smad2 is critical for gastric cancer.
Efficacy of Tiamulin as a Growth Promotant for Growing Swine (1985)

A study involving 244 pigs initially averaging 13 kg was conducted at two stations to evaluate tiamulin as a growth promotant for growing swine. In each experiment, four replicate pens of five (Exp. 1) or six (Exp. 2) pigs/pen were used to evaluate each treatment. In Exp. 1, pigs were fed 0, 11, 22 or 44 ppm tiamulin from 15 to 58 kg, then fed a nonmedicated control diet for the remainder of the experiment (to 95 kg). In Exp. 2, pigs were fed 0, 2.75, 5.5, 11 or 22 ppm tiamulin from 11 to 56 kg, followed by the nonmedicated control diet (to 95 kg). In each experiment, carbadox (55 ppm) was included as a positive control and was fed to an average weight of 35 kg, followed by the control diet. Averaged across all dietary levels, tiamulin resulted in a 14.1% improvement in gain and a 5.7% improvement in feed:gain ratio during the first 28 to 35 d of the experiment (to 30 kg). These improvements were slightly less than those resulting from the feeding of carbadox during the same period (21.5 and 6.9%, respectively). From 13 to 57 kg, pigs fed tiamulin gained 11.6% faster and 3.1% more efficiently than did controls. Over the entire experiment (13 to 95 kg), tiamulin-fed pigs gained 5.7% faster than did controls, even though the tiamulin was withdrawn at 57 kg body weight. Growth rate from 13 to 57 kg plateaued at the 11-ppm dietary level of tiamulin; whereas, feed:gain ratio plateaued at the 22-ppm level. The results indicate that tiamulin is an effective growth promotant for growing swine.
Timing of the Maternal-to-Zygotic Transition during Early Seed Development in Maize (2005)

In animals, early embryonic development is largely dependent on maternal transcripts synthesized during gametogenesis. Recent data in plants also suggest maternal control over early seed development, but the actual timing of zygotic genome activation is unclear. Here, we analyzed the timing of the maternal-to-zygotic transition during early Zea mays seed development. We show that for 16 genes expressed during early seed development, only maternally inherited alleles are detected during 3 d after fertilization in both the embryo and the endosperm. Microarray analyses of precocious embryonic development in apomictic hybrids between maize and its wild relative, Tripsacum, demonstrate that early embryo development occurs without significant quantitative changes to the transcript population in the ovule before fertilization. Precocious embryo development is also correlated with a higher proportion of polyadenylated mRNA in the ovules. Our data suggest that the maternal-to-zygotic transition occurs several days after fertilization. By contrast, novel transcription accompanies early endosperm development, indicating that different mechanisms are involved in the initiation of endosperm and embryo development.
A Bottom-up Approach for Pancreas Segmentation using Cascaded\n Superpixels and (Deep) Image Patch Labeling (2015)

Robust automated organ segmentation is a prerequisite for computer-aided\ndiagnosis (CAD), quantitative imaging analysis and surgical assistance. For\nhigh-variability organs such as the pancreas, previous approaches report\nundesirably low accuracies. We present a bottom-up approach for pancreas\nsegmentation in abdominal CT scans that is based on a hierarchy of information\npropagation by classifying image patches at different resolutions; and\ncascading superpixels. There are four stages: 1) decomposing CT slice images as\na set of disjoint boundary-preserving superpixels; 2) computing pancreas class\nprobability maps via dense patch labeling; 3) classifying superpixels by\npooling both intensity and probability features to form empirical statistics in\ncascaded random forest frameworks; and 4) simple connectivity based\npost-processing. The dense image patch labeling are conducted by: efficient\nrandom forest classifier on image histogram, location and texture features; and\nmore expensive (but with better specificity) deep convolutional neural network\nclassification on larger image windows (with more spatial contexts). Evaluation\nof the approach is performed on a database of 80 manually segmented CT volumes\nin six-fold cross-validation (CV). Our achieved results are comparable, or\nbetter than the state-of-the-art methods (evaluated by\n"leave-one-patient-out"), with Dice 70.7% and Jaccard 57.9%. The computational\nefficiency has been drastically improved in the order of 6~8 minutes, comparing\nwith others of ~10 hours per case. Finally, we implement a multi-atlas label\nfusion (MALF) approach for pancreas segmentation using the same datasets. Under\nsix-fold CV, our bottom-up segmentation method significantly outperforms its\nMALF counterpart: (70.7 +/- 13.0%) versus (52.5 +/- 20.8%) in Dice. Deep CNN\npatch labeling confidences offer more numerical stability, reflected by smaller\nstandard deviations.\n