gebhart/patrepeval huggingface dataset:
Coupled Dynamic Modeling and Simulation of Seabed Hexapod Robot (2019)

With the development of human exploration of the ocean, the manipulation capability of underwater detection equipment in the marine has become one of the key technologies that restrict the development of deep-sea exploration and work. In this paper, we propose a new type of hexapod robot that works on the seabed. Two manipulator arms are installed in the front of the body for mining seabed minerals. In order to design and control a seabed hexapod robot, the dynamics on the seabed are analyzed. Considering the complex seabed environment, the interactions between the arms, legs, body and seabed environment are analyzed and calculated, and a water-terrain-robot coupled dynamic modeling method is proposed. Based on the Vortex simulation platform, a predictive simulation platform for a seabed hexapod robot with two working arms was developed to verify the coupled dynamic model. Simulation results show that the coupled dynamic model is correct.
Fusion of radar and optical sensors for space robotic vision (2003)

Returned radar power estimates are used in an iterative procedure which generates successive approximations to the target shape in order to determine the shape of a 3-D surface. A simulation is shown which involves the reconstruction of an edge of a flat plate. Although this is a somewhat artificial example, it addresses the real problem of recovering edges of space objects lost in shadow or against a dark background. The results indicate that a microwave/optical sensor fusion system is possible, given sufficient computing power and accurate radar cross section measuring systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Flexible micro manipulation platform based on tethered cm/sup 3/-sized mobile micro robots (2005)

This paper presents a micro manipulation platform based on several cm3-sized mobile micro robots. The proposed platform consists of a high resolution XY stage with the mobile micro robots on top of it, a camera with a microscopic objective for the local view and a second camera for the overview and tracking of the robots. The concept of such a manipulation platform is discussed and the platform as it has been realized by the authors is described into detail. Two applications of AFM measurements with an onboard AFM-tool and micro manipulation by adhesion, realized with a similar setup, are discussed.
Dispersive and rectangular similariton generation in fiber amplifiers and lasers (2012)

We present approximate but nevertheless highly accurate similariton solutions to the generalized nonlinear Schr\"odinger equation (NLSE) with varying parameters describing pulses propagating in fiber amplifiers and lasers with normal and anomalous dispersion. We also derive the analytical similariton solutions of the NLSE for the case when the pulses have a rectangular or ``smooth rectangular'' shape and when they have a kink and antikink shape. Numerical simulations are in excellent agreement with these analytical solutions describing self-similar linearly chirped pulses showing that they can be observed in realistic fiber geometries.
Founder <i>BRCA1</i> and <i>BRCA2</i> mutations in French Canadian ovarian cancer cases unselected for family history (1999)

The breast cancer susceptibility genes, BRCA1 and BRCA2, differ in their contribution to ovarian cancer. Recently, founder mutations in each of these genes were identified in Canadian breast cancer and breast ovarian cancer families of French ancestry. We have examined the prevalence of the founder mutations in a series of 113 French Canadian women with ovarian cancer unselected for family history. Germline mutations were found in eight of 99 invasive carcinomas and in none of the 14 tumors of borderline malignancy. Five cases carried the BRCA1 C4446T mutation and two cases carried the BRCA2 8765delAG mutation which are the most common mutations that have been described in French Canadian breast cancer and breast ovarian cancer families. All of these cases reported a family history of at least one first-degree relative with breast cancer, diagnosed below age 60 years, or with ovarian cancer. The identification of founder BRCA1 and BRCA2 mutations in ovarian cancer cases unselected for family history can facilitate carrier detection when the expected yield of a comprehensive screen may be low.
Renal uptake of 99mTc-sulfur colloid. (1974)

Technetium-99m-sulfur colloid, after intravenous administration, is extracted from the plasma pri manly by the reticuloendothelial system (RES) of the liver and to a lesser extent by the RES of the spleen, bone marrow, and other organ systems (1â€”4). Using radiocolloids, the liver and spleen are clearly visualized. In contrast, no uptake is normally seen in the kidney and lung (1â€”4). Indeed, by monitoring the urine for 24 hr after the intravenous adminis tration of 9UmTc_sulfur colloid, Patton, et al have demonstrated that less than 0.2% of the nuclide is excreted through the kidneys (2) . Recently we have observed two patients in whom distinct visualization of the kidneys occurred during liver scanning. They are the subject of this report.
Regulation of Human Gonadotropins. III. Luteinizing Hormone and Follicle Stimulating Hormone in Sera from Adult Males<sup>1</sup> (1968)

Radioimmunoassays for follicle stimulating hormone (FSH) and luteinizing hormone (LH) were used to determine the concentrations of these gonadotropins in sera from healthy men. No evidence of diurnal or other rhythmic variations in serum concentrations was found in samples obtained daily, 3 times a day, or hourly. Treatment of 3 subjects with 1.5 mg of ethinyl estradiol/day for 2–3 days resulted in a consistent fall in serum concentrations of both FSH and LH. Treatment of 3 subjects with 25 mg of testosterone propionate each day for 3 days resulted in a consistent fall in serum concentrations of LH. Treatment of 4 subjects with 200 mg of clomiphene citrate daily for 3 days resulted in a rise in serum concentrations of both FSH and LH.
Targeting Adrenomedullin to Improve Lipid Homeostasis in Diabetic Pregnancies (2017)

GDM pregnancies are associated with increased AM and its receptor expression in adipose tissues. AM stimulates lipolysis and leptin and resistin expression, and these effects can be reversed by AM antagonist. To our knowledge, manipulation of AM and its receptors in adipocytes might represent an approach in reducing the risk of GDM and fetal overgrowth.
Extremely high reflectivity of zirconium during combustion in air induced by a continuous-wave CO2 laser (1985)

It is shown experimentally that in the case of nonisothermal laser ignition of Zr in air, the oxinitride is located in the outer scale layer and determines the reflectivity. The possible mechanisms of formation of the nitride phase on the specimen surface as a result of rapid combustion and transition to a gas-phase-limited reaction are examined. Some previously proposed models describing changes in the reflectivity of Zr and Ti during ignition without allowance for the formation of nitrides are discussed. 10 references.
Laboratory skinpatches and smart cards based on foils (2011)

This paper presents: (i) a hand held system consisting of a portable platform and disposable polymeric Lab-on-a-card capable of performing a nucleic acid concentration, amplification and detection with reagents inside; and a (ii) wearable diagnostic Lab-on-a-Paper skinpatch system, capable of performing in-situ sweat sampling, analyte pre-concentration, and immunoassay analysis. The skinpatch works in conjunction with a hand-held optoelectronic reader / micro PC fluorescence analysis interface.
Low-threshold-current-density vertical-cavity surface-emitting AlGaAs/GaAs diode lasers (1989)

The optimization of electrically pumped vertical-cavity surface emitters (VCSEs) with conductive semiconductor-stack rear reflectors and mirror-reflectivity products of 0.93 for minimum threshold current density, J/sub th/, is presented. Devices of two different active layer thicknesses are fabricated: 3 mu m, as for conventional devices, and 0.6 mu m, which, according to theoretical calculations, provides J/sub th/ for lasers with a mirror reflectivity product in the 0.90-0.95 range. For structures of 0.16- mu m thick active layers, J/sub th/ values as low as 10 kA/cm/sup 2/ are obtained, in good agreement with theory. Analysis shows that for active layer thicknesses <or=1 mu m, J/sub th/ reaches similar minimum values for double-heterostructure and multiquantum-well structure devices of the same active medium thickness. A brief discussion of thin active medium structures is presented.<<ETX>>
ChemInform Abstract: RK. VON TRIPLETT‐ARYL‐NITRENEN UND ‐AZIDEN MIT MOLEKULAREM SAUERSTOFF (1972)

Abstract Die Photolyse der aromatische Azide (I) liefert in Gegenwart von Sauerstoff bei 30°C in Acetonitril, Aceton oder Benzol die Nitroderivate (II), die Azoxyverbindungen (III), die Azoverbindungen (IV) und die Aniline (V).
Biodistribution of chitosan based nano magnetite suspension for targeted hyperthermia (2005)

In this paper, the iron uptake contents and morphology of targeted organs for hyperthermia were studied in ICR mouse by injection of magnetic suspension. Biodistribution of injected (chitosan-based) magnetite suspension was investigated using intraoral X-ray equipments and histological images for effective targeting hyperthermia. Fe/sub 3/O/sub 4/ and chitosan based Fe/sub 3/O/sub 4/ suspension were synthesized by spray-coprecipitated method. When biocompatible chitosan was applied in magnetic suspension, various values of the surface charge of the magnetite were acquired. Phagocytic uptake should be avoided in targeting magnetic particles to other organs and tissues such as liver and spleen. 2 wt% chitosan-based magnetite suspension with a zeta potential close to zero showed a reduced phagocytic uptake in comparison with charged particles.
ChemInform Abstract: Nitrosamines, N‐Nitrosoamides, and Diazonium Ions from Tri‐N‐ Substituted Amidines. (1991)

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.
Dual-wideband log-periodic antennas (2008)

Two log-periodic (LP) antenna configurations able to suppress a specific frequency band are introduced in this paper. LP antennas belong to the class of frequency independent antennas and are able to achieve multi-decade wide bandwidths. We start with a parametric study of a traditional planar curved tooth LP antenna aimed in determining the means for achieving specific bandwidth. Two techniques for accomplishing consistent near/far-field dual-band performance are introduced next. The first is a LP antenna integrated with a dual-wideband feed line, and the second one is a LP with removed resonant teeth. Antennas and feeds are designed on a microstrip substrate and method of moments modeling within FEKO is used to demonstrate their performance. Required dual-band operation is 1.8-5 GHz and 7-11 GHz.
ChemInform Abstract: Metabolites of 1,5‐Dihydroimidazo(2,1‐b)quinazolin‐2(3H)‐ones. Preparation and Reactions of Some 1,5‐Dihydro‐3‐hydroxyimidazo(2,1‐b)quinazolin‐2(3H)‐ones. (1987)

Abstract The benzyl halides (I) are converted to the diamines (V) (yields in g), which undergo in the presence of (VI) cyclization to give the quinazolines (VIIa)‐(VIIc); deprotection of (VIIa) affords (VIId).
ChemInform Abstract: HETEROGENEOUS HYDROGENATION OF ORGANIC HALOGEN COMPOUNDS USING CARRIER‐FIXED ORGANOTIN HYDRIDE (1982)

Abstract Durch Hydrostannierung des Silans (I) mit dem Stannan (II) entsteht ein Isomerengemisch (III), das in Ether gelöst mit Aluminiumoxid unter Abspaltung von MeOH zu (IV) reagiert, bei dem Sn über die feste anorganische Trägersubstanz 137 fixiert ist.
Superradiance-enhanced quantum state transfer through time reversal of an optical channel (2016)

Rare earth ions have exceptionally long coherence times, making them an excellent candidate for quantum information processing. A key part of this processing is quantum state transfer. We demonstrate that high fidelity quantum state transfer between two ensembles of rare earth ions can be achieved by time reversing the connecting optical quantum channel, and suggest using a gradient echo memory to perform this time reversal. We demonstrate that the superradiant coupling between the ensemble of ions and an intermediate cavity coupled to the optical channel can lead to higher transfer fidelities than would otherwise be possible with an individual ion. We suggest increasing the size of the ensemble can overcome unwanted loss and decoherence processes that reduce the transfer fidelity.
10 GHz bandwidth nonlinear delay electro-optic phase dynamics for ultra-fast nonlinear transient computing (2013)

International audience
Relative disposition of the GABA agonists THIP and muscimol in the brain of the rat (1982)

Journal Article Relative disposition of the GABA agonists THIP and muscimol in the brain of the rat Get access F Moroni, F Moroni Laboratory of Preclinical Pharmacology, National Institute of Mental Health, Saint Elizabeths Hospital, Washington, D.C. 20032Institute of Pharmacology and Toxicology, University of Firenze, Viale G. B. Morgagni 65, 50134 Italy Search for other works by this author on: Oxford Academic Google Scholar M C Forchetti, M C Forchetti Laboratory of Preclinical Pharmacology, National Institute of Mental Health, Saint Elizabeths Hospital, Washington, D.C. 20032 Search for other works by this author on: Oxford Academic Google Scholar P Krogsgaard-Larsen, P Krogsgaard-Larsen Laboratory of Preclinical Pharmacology, National Institute of Mental Health, Saint Elizabeths Hospital, Washington, D.C. 20032Royal Danish School of Pharmacy, Dept. of Chemistry BC, Universitetsparken 2, DK-2100 Copenhagen, Denmark Search for other works by this author on: Oxford Academic Google Scholar A Guidotti A Guidotti Laboratory of Preclinical Pharmacology, National Institute of Mental Health, Saint Elizabeths Hospital, Washington, D.C. 20032 Search for other works by this author on: Oxford Academic Google Scholar Journal of Pharmacy and Pharmacology, Volume 34, Issue 10, October 1982, Pages 676–678, https://doi.org/10.1111/j.2042-7158.1982.tb04702.x Published: 12 April 2011 Article history Received: 30 March 1982 Published: 12 April 2011
High-voltage electrical discharges and insulation in vacuum at the minimising volumes (2002)

The essential part of this arrangement is a source of artificial gamma radiation. A principal advantage of this kind of source in applications for gamma logging is the possibility of remote handling, thus excluding the danger in case of an accident. The evaluation of the generator has been performed for the most difficult application case-a deep borehole with high temperature and pressure. Several variants of vacuum tubes were researched and the results are introduced.
Total knee replacement (1995)

Describes a computer-assisted surgical system which uses a calibrated robot. The authors consider: total knee replacement surgery; motivation for robotic systems in total knee replacement; system operation; CT scan and preoperative planning; femoral fiducial location; femoral component placement; tibial fiducial location and component placement; fixturing; immobilization of the knee; immobilization of the pelvis and ankle; fiducial identification and registration; landmark pins; center of the femoral head; robot system and calibration; calibration using a telescopic ball-bar.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Stikstofbemesting met Pulstec in een late herfstteelt bloemkool op zandgrond (2009)

Het telen van vollegrondsgroenten met een goede opbrengst en kwaliteit bij een zo laag mogelijk stikstofverlies vraagt om een efficiënt gebruik van meststoffen. Dit geldt in het bijzonder voor uitspoelings? gevoelige teelten op zandgrond. Telers hebben daarom bemestingsmethoden nodig waarbij van de nutriënten uit meststoffen een zo hoog mogelijk percentage door het gewas wordt benut. In 2008 is op proefboerderij Vredepeel (zuidoostelijk zand) in een proef met een late herfstteelt bloemkool nagegaan of plaatsing van een eenmalige stikstofgift bij elke plant met behulp van de Pulstec?methode tot een betere stikstofbenutting zou kunnen leiden dan een gedeelde stikstofgift met KAS (ammoniumnitraat).
Algorithms for the prevention of postoperative nausea and vomiting: an efficacy and efficiency simulation (2007)

Despite improved knowledge on risk factors and antiemetic strategies, none of the tested algorithms completely prevents postoperative nausea and vomiting and none is universally applicable. Anesthesiologists should try to identify the most useful antiemetic strategy for a specific setting. That strategy may be prophylactic or therapeutic or a combination of both, and it should consider institutional policies and individual baseline risks.
α2β1 integrin controls association of Rac with the membrane and triggers quiescence of endothelial cells (2010)

Integrin receptors and their extracellular matrix ligands provide cues to cell proliferation, survival, differentiation and migration. Here, we show that alpha2beta1 integrin, when ligated to the basement membrane component laminin-1, triggers a proliferation arrest in primary endothelial cells. Indeed, in the presence of strong growth signals supplied by growth factors and fibronectin, alpha2beta1 engagement alters assembly of mature focal adhesions by alpha5beta1 and leads to impairment of downstream signaling and cell-cycle arrest in the G1 phase. Although the capacity of alpha5beta1 to signal for GTP loading of Rac is preserved, the joint engagement of alpha2beta1 interferes with membrane anchorage of Rac. Adapting the 'split-ubiquitin' sensor to screen for membrane-proximal alpha2 integrin partners, we identified the CD9 tetraspanin and further establish its requirement for destabilization of focal adhesions, control of Rac subcellular localization and growth arrest induced by alpha2beta1 integrin. Altogether, our data establish that alpha2beta1 integrin controls endothelial cell commitment towards quiescence by triggering a CD9-dependent dominant signaling.
Moessbauer investigations of high-spin ferrous heme proteins. II. Chloroperoxidase, horseradish peroxidase, and hemoglobin (1975)

Reduced samples of chloroperoxidase, horseradish peroxidase, and deoxyhemoglobin were studied by Mössbauer spectroscopy in strong magnetic fields. The intricate paramagnetic spectra of chloroperoxidase were evaluated in detail in the framework of a spin Hamiltonian pertinent to high-spin ferrous iron. The studies strongly suggest that, in their reduced states, chloroperoxidase from Caldariomyces fumago and cytochrome P-450 from Pseudomonas putida have similar, if not identical ligand structures of the heme iron. The spectral similarities of these two proteins, noted in an earlier Mössbauer investigation, are further explored and substantiated. Reduced horseradish peroxidase and deoxyhemoglobin, on the other hand, show high-field Mössbauer spectra that differ considerably from each other and, in particular, from those of the P-450 type, suggesting a different ligand arrangement of the heme iron for each case.
Multidimensional Fluorescence Fingerprinting for Classification of Shrimp by Location and Species (2012)

Parallel factor analysis with soft independent modeling by class analogy (PARAFAC-SIMCA) was used to analyze fluorescence data from shrimp extracts (organic and aqueous phases) to create classification schemes for two species of shrimp from four different countries. Twenty-four shrimp (six from each location: Ecuador, Philippines, Thailand, and United States) were studied; two were classified as statistical outliers. Using PARAFAC scores from the two aqueous fluorescent components and the strongest four components from the organic phase, country of origin was correctly identified at the 95% confidence level for all 22 remaining specimens; three false positives, at lower confidence levels than the true positives, were also indicated. A classification scheme which used all eight fluorescent components reproduced the 22 correct classifications and reduced the number of false positives to one. Finally, a scheme using PARAFAC scores from the two aqueous fluorescent components and the strongest four components from the organic phase, designed to classify according to species, produced 22 correct matches with no false positives. Spectral similarities between known chemical species and the components identified by PARAFAC are suggested for most cases. The results indicate that environmental effects appear in the fluorescence fingerprints of shrimp collected in different locations; therefore, fluorescence measurements on shrimp have the potential to permit geographical classification of shrimp or, conversely, to permit inferences to be made about the animal's environment.
Histamine and Human Parathyroid Adenoma: Effect on Adenosine 3',5'-Monophosphate Accumulation in Vitro* (1981)

We studied in vitro the presence of histamine and the effect of histamine and its antagonists on cAMP accumulation in parathyroid tissue (parathyroid adenoma or hyperplasia) from patients with primary hyperparathyroidism. Parathyroid adenomatous tissue contained 11.2 +/- 2.9 ng histamine/g wet weight (approximately 2 X 10(-5) M), as determined by a specific radioenzyme assay. Histamine caused a prominent increase in cAMP accumulation in parathyroid tissue slices in a dose-dependent manner, with half-maximal stimulation being achieved at 5 X 10(-6) M and maximal stimulation occurring at 10(-4) M histamine. The histamine H2 receptor antagonists, cimetidine and metiamide, caused profound inhibition of histamine-stimulated cAMP accumulation in the parathyroid tissue. Pyrilamine, an H1 antagonist, also inhibited histamine-stimulated cAMP accumulation. Isoproterenol, a beta-adrenergic agonist, elicited marked elevation of cAMP, and its stimulatory effect was blocked by propranolol, but the effects of histamine on cAMP levels in parathyroid tissue were not blocked by propranolol. Histamine significantly stimulated (an increase of 50%) the release of immunoreactive parathyroid hormone. The present observations demonstrate that parathyroid adenomatous tissue has a relatively high content of histamine, and the release of immunoreactive parathyroid hormone from this tissue. The effects of antagonists suggest that histamine stimulates cAMP accumulation in the parathyroid adenomatous tissue by an action on both H2 and H1 histamine receptors.
ChemInform Abstract: DICOBALT‐HEXACARBONYL COMPLEXES OF ACETYLENIC PHOSPHAZENES (1984)

Abstract Die ml?omplexe (I) und (III) werden durch I zl‐molare Umsetzung der Propinyleymlotriphospltazetie (II) mit Octacarhonyldicobalt dargestellt.