gebhart/patrepeval huggingface dataset:
Congenital left ventricular diverticulum in an asymptomatic patient: multi-modal evaluation (2019)

Congenital left ventricular diverticula are rare cardiac malformations. In our case a diverticular apical lesion of the left ventricle was accidentally found on a thoracic CT scan, acutely performed to rule out abdominal aortic rupture.
Pressure Following Strategy for Conventional Braking Control Applied to a HIL Test Bench (2017)

&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Brake systems represent important components for passenger cars since they are strictly related to vehicle safety: Anti-lock Braking Systems (ABS) and Electronic Stability Control (ESC) are the most well-known examples. The paper is focused on the characterization of the braking hydraulic plant and on the design of a pressure following control strategy. This strategy is aimed at pursuing performances and/or comfort objectives beyond the typical safety task. The low-level logic (focus of the paper) consists of a Feedforward and Proportional Integral controller. A Hardware In the Loop (HIL) braking test bench is adopted for pressure controller validation by providing some realistic reference pressure histories evaluated by a high-level controller. Results prove that innovative control strategies can be applied to conventional braking systems for achieving targets not limited to braking issues, i.e., comfort or NVH tasks.&lt;/div&gt;&lt;/div&gt;
Validity of net primary productivity estimation by light and dark bottle oxygen technique in tropical inshore waters, with a note on primary productivity of the surf zone at Cochin (2000)

Light and dark bottle oxygen technique is widely used to estimate the rate of gross and net&#13;\nphotosynthetic production (G.P.P. and N.P.P.) in the marine environment, of which N.P.P.&#13;\ndetermines the fertility of the sea and is also used for the assessment of potential fishery&#13;\nresources. But in the shallow coastal waters of tropical seas, where organic load is considerably&#13;\nhigh, bacterial oxidation and reduction processes involving utilisation and release of&#13;\noxygen tend to interfere significantly in the L-I values often leading to unreliable and&#13;\nunrealistic values of net photosynthetic production.
SYNTHESIS OF POLY(ACRYLIC ACID-CO-ITACONIC ACID) IN CARBON DIOXIDE–METHANOL MIXTURES (2002)

ABSTRACT High fluidity solvents, such as supercritical fluids, have several advantages over traditional solvents as polymerization media, such as offering a more environmentally-friendly reaction media, providing increased reaction rates, and simplifying the separation and purification of polymers. In this study, a traditional glass-ionomer polymer, poly(acrylic acid-co-itaconic acid) (PAA/IA) was synthesized by using mixtures of CO2 and methanol as the reaction solvent and was characterized by 1H-NMR, FT-IR, GPC, and viscometry. The mechanical and working properties of the glass-ionomer cements, prepared by mixing aqueous solutions of the polymers with Fuji II glass powder, were evaluated for compressive strength (CS), diametral tensile strength (DTS) and flexural strength (FS), as well as setting time and working time. The results showed that the polymerization reaction in CO2/methanol mixtures was faster and had higher conversion than the polymerization reaction in water. The glass-ionomer formulations made from the copolymer prepared under SC conditions showed higher CS, comparable FS and DTS compared with those made from the same polymer prepared in water. Both of the synthesized copolymers had significantly higher CS and FS than Fuji II. The working properties of PAA/IA made in CO2/methanol met the requirement of ANSI/ADA No. 96.
Molecular differences among neurons reveal an organization of human visual cortex. (1990)

Monoclonal antibody Cat-301 recognizes a cell-surface proteoglycan on subsets of neurons in several areas of the cat and macaque monkey central nervous system. In striate and extrastriate visual cortex of the macaque, the distribution of Cat-301-positive neurons demonstrates features of cellular organization that correlate with previously described functional subdivisions. Here we show that Cat-301 recognizes an antigen in human cortex that is closely related, if not identical, to the antigen in laboratory animals. Further, we use Cat-301 to demonstrate an organization of molecularly defined neurons in primary and secondary visual cortex (cortical areas V1 and V2) of the human. The organization demonstrated with Cat-301 in human area V1 correlates with the organization of ocular dominance columns demonstrated by cytochrome oxidase histochemistry. The organization demonstrated with Cat-301 in human area V2 correlates with the thick stripes of the cytochrome oxidase pattern. The present observations provide evidence for a visual pathway in human cortex homologous to the magnocellular pathway in macaque, a pathway involved in processing the low-contrast, achromatic, and moving components of visual stimuli.
Hybridation de la DG-FDTD avec l'optique physique fréquentielle pour l'analyse d'antennes sur porteur (2013)

National audience
ChemInform Abstract: The Chromium‐Reformatsky Reaction: Asymmetric Synthesis of the Aldol Fragment of the Cytotoxic Epothilons from 3‐(2‐Bromoacyl)‐2‐ oxazolidinones. (1997)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Channel estimation for frequency hopping systems via multiple invariances (2002)

The problem of channel estimation for a frequency hopping system is considered. Under a discrete multipath fading model, the path gains and delays are estimated separately. By exploiting fixed (but unknown) patterns in the data packet, the delay estimation problem is formulated in an ESPRIT-like format by identifying multiple rotational invariance structures in the received data. Since ESPRIT is limited to exploitation of single invariance, the previously proposed SPECC algorithm is employed for the multipath delay estimation. Performance results based on simulations are presented.
Development of intestinal microorganisms and molecular ecological methods for analysis of intestinal ecosystem in the neonate (2005)

Up to date, a number of review papers were reported on intestinal microorganisms that influence the health and disease of human being and diet that directly influence the establishment of intestinal microbial populations. Importance of studying intestinal microorganisms in the neonate arises from the easy approach to studying initial acquisition and settlement of intestinal microorganisms. Despite of the importance, few studies of neonatal intestinal microorganisms have been carried out and there is no paper focusing the factors to influence the development of intestinal microorganisms and molecular ecological methods for the analysis of intestinal ecosystem in the neonate. In this review, we summarized the status of our current knowledge of basic initial acquisition and settlement of intestinal microorganisms. And recent development of molecular ecological methods in studying the intestinal microbiology was also discussed.
Multiscale simulation of dilute DNA in a roll-knife coating flow (2008)

The dynamics of dilute solutions of DNA flowing in a scaled down roll-knife coating flow are investigated on multiple scales. The flow is generated between a rotating roll and a stationary glass knife, and extension of fluorescently stained DNA molecules is measured at the minimum gap at low roll speeds. The macroscopic flow is computed by solving the continuum equations of motion with the finite element method; the microscale behavior of DNA molecules is predicted by Brownian dynamics combined with successive fine-graining. The simulations predict that the DNA should stretch almost to full extension near the roll surface in the region of minimum gap; this does not agree with experimental measurements. The assumption that the flow is nearly homogeneous on the length scale of the polymer molecules, commonly used in processing flows as well as Brownian dynamics simulations of simple flows, fails near free surfaces, and is the likely cause of the discrepancy. Evidence from the literature suggests that similar nonlocal effects may be present in coating and ink-jet printing flows of high molecular weight polymer solutions.
Urban mixed realities (2008)

This workshop will address the approaches, challenges, benefits and aspects of interaction within urban mixed reality environments. It will seek to draw upon existing research into place, presence and situated interaction while exploring areas of art, flow, ambience, urban design, performance and technology. In doing so, it will bridge the divide between art and science which exists in the growing research area of urban mixed realities. The anticipated outcome is a closer examination of the issues relevant to interacting within urban mixed realities and how to drive the research agenda forward.
Etudes moléculaires et culturales de boues issues de bioréacteurs anaérobies mésothermiques traitant le phosphogypse : Isolement et caractérisation de nouveaux genres chez les thermotogales (2012)

Les representants de l'ordre des Thermotogales se trouvent generalement dans les puits petroliers et les sources hydrothermales aquatiques et terrestres. Recemment, des etudes moleculaires basees sur l'analyse des genes codant l'ARNr 16S ont prouve l'existence de representants thermophiles, mais egalement mesophiles de cet ordre dans les boues de bioreacteurs et dans les sediments contamines par des composes toxiques. Les experiences que nous avons conduites pour traiter notamment le lactoserum en presence de phosphogypse ou de sulfate dans des bioreacteurs anaerobies mesothermiques nous ont permis de mettre en evidence de nouvelles populations de bacteries et plus precisement de Thermotogales par des approches moleculaires et culturales, avec la description de deux nouveaux genres, « Mesotoga sulfurireducens » et Defluviitoga tunisiensis. En ce qui concerne « M. sulfurireducens», il correspond a la premiere bacterie mesophile isolee chez les Thermotogales avec un metabolisme original centre sur la sulfo-reduction. Toujours dans le but de traiter le phosphogypse, mais cette fois-ci en utilisant les margines comme composantes organiques dans le procede anaerobie, une nouvelle espece du genre Fusibacter a pu etre isolee, F. tunisiensis. Globalement, nos resultats demontrent le role important joue par les Firmicutes fermentaires et sulfato-reductrices (ordre des Clostridiales) et celui des Proteobacteria sulfato-reductrices (deltaproteobacteria) chez les Bacteria, mais egalement par les Methanoarchaea acetoclastes aux cotes des Thermotogales dans la digestion anaerobie de la matiere organique lorsque les effluents sont riches en sulfate.
Design of an Embedded Wireless VOD System (2007)

This paper proposes a design and implementation of an embedded wireless VOD system to illustrate a typical application of mobile learning in distant education.Through supporting IEEE802.11b wireless network protocol and MMS protocol,in the Intel PXA270 hardware platform with CF wireless adapter,the Mplayer media player is ported to support several kinds of file formats.The web browser Konqueror is enhanced by supporting MMS.The prototype system has been built to study the key technologies in this solution for the future applications.
Robustness versus accuracy: multipath effects on land mobile satellite navigation (2016)

Knowledge of performance for different signal options in difficult environments is vital for improving modern satellite navigation systems. Currently, the accuracy of the different transmission signals in realistic multipath environments is still not known in current literature. In this study, different classical and advanced signals have been simulated using an urban multipath channel model standardised by the International Telecommunication Union. For the given multipath channel, signal and receiver effects have been investigated. The performance of GPS C/A and GALILEO open service signals has been compared. Additional simulation of wideband navigation signals lead to the uncovering of an important conflict between robustness and accuracy in terms of signal bandwidth. This conflict is signal inherent and not associated to a particular receiver. As a result of this finding, an improved satellite signal extension for robust urban navigation has been proposed. On the receiver side, pure line‐of‐sight (LOS) conditions have been identified in which a novel particle filter‐based receiver shows a comparable performance as a classical delay locked loop (DLL). In a mixture of LOS and shadowing conditions the particle receiver clearly outperformed the classical DLL. For the classical DLL, critical scenarios have been identified that are often causing a loss of lock.
Electron-temperature inhomogeneities along an x-ray laser plasma (1993)

The uniformity of electron temperature (${\mathit{T}}_{\mathit{e}}$) along an x-ray laser plasma produced by a line-focused laser was investigated with precise space- and time-resolved measurements. Thomson scattering of a uv probe by the plasma was used to measure the spatial variation of ${\mathit{T}}_{\mathit{e}}$ along the line focus. This characterization was complemented by spatially resolved L-shell x-ray spectroscopy. Electron temperatures obtained from the n=4\ensuremath{\rightarrow}2 F-like to Ne-like line ratios agree well with the results from Thomson scattering. Interferometry and x-ray imaging were also used to aid in the diagnosis of the plasma. The inhomogeneities observed are typical of those to be expected in x-ray laser experiments and can lead to significant reduction of the inferred gain on the Ne-like transitions.
Separating Electrophilicity and Lewis Acidity: The Synthesis, Characterization, and Electrochemistry of the Electron Deficient <i>Tris</i>(aryl)boranes B(C<sub>6</sub>F<sub>5</sub>)<sub>3–<i>n</i></sub>(C<sub>6</sub>Cl<sub>5</sub>)<sub><i>n</i></sub> (<i>n</i> = 1–3) (2011)

A new family of electron-deficient tris(aryl)boranes, B(C(6)F(5))(3-n)(C(6)Cl(5))(n) (n = 1-3), has been synthesized, permitting an investigation into the steric and electronic effects resulting from the gradual replacement of C(6)F(5) with C(6)Cl(5) ligands. B(C(6)F(5))(2)(C(6)Cl(5)) (3) is accessed via C(6)Cl(5)BBr(2), itself prepared from donor-free Zn(C(6)Cl(5))(2) and BBr(3). Reaction of C(6)Cl(5)Li with BCl(3) in a Et(2)O/hexane slurry selectively produced B(C(6)Cl(5))(2)Cl, which undergoes B-Cl exchange with CuC(6)F(5) to afford B(C(6)F(5))(C(6)Cl(5))(2) (5). While 3 forms a complex with H(2)O, which can be rapidly removed under vacuum or in the presence of molecular sieves, B(C(6)Cl(5))(3) (6) is completely stable to refluxing toluene/H(2)O for several days. Compounds 3, 5, and 6 have been structurally characterized using single crystal X-ray diffraction and represent the first structure determinations for compounds featuring B-C(6)Cl(5) bonds; each exhibits a trigonal planar geometry about B, despite having different ligand sets. The spectroscopic characterization using (11)B, (19)F, and (13)C NMR indicates that the boron center becomes more electron-deficient as n increases. Optimized structures of B(C(6)F(5))(3-n)(C(6)Cl(5))(n) (n = 0-3) using density functional theory (B3LYP/TZVP) are all fully consistent with the experimental structural data. Computed (11)B shielding constants also replicate the experimental trend almost quantitatively, and the computed natural charges on the boron center increase in the order n = 0 (0.81) < n = 1 (0.89) < n = 2 (1.02) < n = 3 (1.16), supporting the hypothesis that electrophilicity increases concomitantly with substitution of C(6)F(5) for C(6)Cl(5). The direct solution cyclic voltammetry of B(C(6)F(5))(3) has been obtained for the first time and electrochemical measurements upon the entire series B(C(6)F(5))(3-n)(C(6)Cl(5))(n) (n = 0-3) corroborate the spectroscopic data, revealing C(6)Cl(5) to be a more electron-withdrawing group than C(6)F(5), with a ca. +200 mV shift observed in the reduction potential per C(6)F(5) group replaced. Conversely, use of the Guttmann-Beckett and Childs' methods to determine Lewis acidity on B(C(6)F(5))(3), 3, and 5 showed this property to diminish with increasing C(6)Cl(5) content, which is attributed to the steric effects of the bulky C(6)Cl(5) substituents. This conflict is ascribed to the minimal structural reorganization in the radical anions upon reduction during cyclic voltammetric experiments. Reduction of 6 using Na((s)) in THF results in a vivid blue paramagnetic solution of Na(+) [6](•-); the EPR signal of Na(+)[6](•-) is centered at g = 2.002 with a((11)B) 10G. Measurements of the exponential decay of the EPR signal (298 K) reveal [6](•-) to be considerably more stable than its perfluoro analogue.
Sparsity seeking total generalized variation for undersampled tomographic reconstruction (2016)

Here we present a novel iterative approach for tomographic image reconstruction which improves image quality for undersampled and limited view projection measurements. Recently, the Total Generalized Variation (TGV) penalty has been proposed to establish a desirable balance between smooth and piecewise-constant solutions. Piecewise-smooth reconstructions are particularly important for biomedical applications, where the image surface slowly varies. The TGV penalty convexly combines the first and higher order derivatives, which means that for some regions (e.g. uniform background) it can be more challenging to find a sparser solution due to the weight of the higher order term. Therefore we propose a simple heuristic modification over the Chambolle-Pock reconstruction scheme for TGV which consists of adding the wavelet thresholding step which helps to suppress aliasing artifacts and noise while preserve piecewise-smooth appearance. Preliminary numerical results with two piecewise-smooth phantoms show strong improvement of the proposed method over TGV and TV penalties. The resulting images are smooth with sharp edges and fewer artifacts visible.
Asymmetrische Ringschlussmetathese mit Pfiff (2009)

Abstract Doppelter Salto! Der gezeigte Katalysator mit Molybdän‐Stereozentrum und einzähnigen Liganden ( Si =Si t BuMe 2 ) ermöglicht die asymmetrische Ringschlussmetathese einer breiten Substratpalette. Seine beispiellose Aktivität geht auf seine veränderliche Struktur zurück, die eine doppelte Inversion am Metallzentrum innerhalb eines Katalysezyklus zulässt. Der Katalysator wurde in einer Metathesereaktion auf dem Weg zu (+)‐Quebrachamin getestet. magnified image
An automated framework for generating variable-accuracy battery models from datasheet information (2013)

Models based on an electrical circuit equivalent have become the most popular choice for modeling the behavior of batteries, thanks to their ease of co-simulation with other parts of a digital system. Such circuit models are actually model templates: the specific values of their electrical elements must be derived by the analysis of the specific battery devices to be modeled. This process requires either to measure the battery characteristics or to derive them from the datasheet. In the latter case, however, very often not all information are available and the model fitting becomes then unfeasible. In this paper we present a methodology for deriving, in a semi-automatic way, circuit equivalent battery models solely from data available in a battery datasheet. In order to account for the different amount of information available, we introduce the concept of “level” of a model, so that models with different accuracy can be derived depending on the available data. The methodology requires only minimal intervention by the designer and it automatically generates MATLAB models once the required data for the corresponding model level are transcribed from the datasheet. Simulation results show that our methodology allows to accurately reconstruct the information reported in the datasheet as well as to derive missing ones.
Characterization of native laminin from bovine kidney and comparison with other laminin variants (1994)

A comprehensive characterization of laminin isoforms requires access to native preparations of laminins of a defined subunit composition. For this purpose an optimized isolation procedure was developed and shown to be broadly applicable to normal mammalian tissues. The protocol does in addition yield side fractions highly enriched in collagens XII and XIV. The major laminin purified from bovine kidney is indistinguishable from mouse Engelbreth-Holm-Swarm (EHS) tumor laminin in electron microscopy, but contains an A chain that migrates in a position intermediate to the Ae and the Am chains on SDS/PAGE. Antisera raised against mouse EHS-tumor laminin crossreact with B chains, but not with the A chain, of kidney laminin. Further, this A chain is not recognized by antisera raised against the Am chain. Laminins from heart and kidney both contain a significant subpopulation with a 190-kDa polypeptide identified as the B1s chain. The Am-containing laminins from heart and placenta differ morphologically from the Ae-containing EHS laminin in having one short arm that does not have the characteristic globule-rod-globule appearance. Further, the Am-containing laminins show a significantly higher thermal stability of the coiled-coil alpha-helical region in the long arm than does Ae-containing EHS laminin, indicating that certain combinations of laminin chains interact more strongly than others.
Biological Gradient Regulated Predictive Model of Long Bone Growth (1997)

Abstract Morphogenesis is regulated by a complex interaction of factors that are intrinsic and extrinsic to the cells composing the organism (e.g. genetic programming, cytokine gradients, and applied mechanical/electrical forces). Mechanical stimulation has been shown to affect bone growth, but the interaction of mechanical forces with biological factors during the development of a cartilage anlage into adult form is not clear. During skeletal development, chondrocytes produce cartilage through differential cell growth, cell volume changes, and extracellular matrix secretion. Cartilage cells at the growth front undergo significant hypertrophy and later their surrounding matrix becomes mineralized. In turn, the mineral is resorbed by osteoclasts and new bone tissue is deposited by osteoblasts. During later stages of prenatal development, contraction of developing muscles applies significant loads to the skeleton which in turn affects the bone growth. This research attempts to elucidate how these processes are controlled by biologic factors in the absence of mechanical factors using a finite element (FE) model of the proximal tibia from a paralyzed chick embryo.