gebhart/patrepeval huggingface dataset:
<title>Hybrid teleoperated/cooperative multirobot system for complex retrieval operations</title> (1996)

Cooperative multirobot systems are capable of performing fairly complex tasks even while operating in an autonomous or semi-autonomous mode. The multiple views of an object afforded by a multirobot system enhance the overall level of information that is vital for success in such tasks as satellite retrieval operations. Our previous studies along these lines indicated that although simple control strategies were sufficient for the success of such a mission, limitations in the accuracy of the visual sensors led to misses during the grasping phase. This paper extends the cooperative multirobot system framework that was previously presented for more complex retrieval operations such as the recovery of a tumbling satellite. The subsumption architecture that is used for control of the multirobot system is capable of the recovery of a satellite spinning about its long axis. In this paper, it is shown that it is impractical for a free-floating multirobot system to perform the same task for a tumbling satellite. The reach-space limitations of free-floating platforms dictate a free-flying approach to the problem. In addition, using current visual sensing technology, such a system must also include a teleoperated interface due to the accuracy concerns noted in the previous study. We also present the results of an experimental simulation study of a tumbling satellite retrieval by three cooperating robots. This simulation includes full orbital dynamics effects such as atmospheric drag and non-spherical gravitation field perturbations.
Halothane Interactions with Nicotinic Acetylcholine Receptor Membranes (1997)

Unquenchable fluorescence arises from tryptophan residues that are buried within the protein and protected from halothane. Sodium dodecyl sulfate unfolds membrane proteins and allows previously buried fluorescence protein residues to be rapidly and homogeneously quenched by halothane. Halothane quenches protein components of nAcChoR membranes over the same concentration range and time scale that it exerts its functional effects, a finding that is generally consistent with a protein site of action.
Multi-resonant silicon nanoantennas by evolutionary multi-objective optimization (2018)

Photonic nanostructures have attracted a tremendous amount of attention in the recent past. Via their size, shape and material it is possible to engineer their optical response to user-defined needs. Tailoring of the optical response is usually based on a reference geometry for which subsequent variations to the initial design are applied. Such approach, however, might fail if optimum nanostructures for complex optical responses are searched. As example we can mention the case of complex structures with several simultaneous optical resonances. We propose an approach to tackle the problem in the inverse way: In a first step we define the desired optical response as function of the nanostructure geometry. This response is numerically evaluated using the Green Dyadic Method for fully retarded electro-dynamical simulations. Eventually, we optimize multiple of such objective functions concurrently, using an evolutionary multi-objective optimization algorithm, which is coupled to the electro-dynamical simulations code. A great advantage of this optimization technique is, that it allows the implicit and automatic consideration of technological limitations like the electron beam lithography resolution. Explicitly, we optimize silicon nanostructures such that they provide two user-defined resonance wavelengths, which can be individually addressed by crossed incident polarizations.
Solar transition region response to variations in the heating rate (1982)

The response of a numerical model for the upper chromosphere, transition region, and corona to variations in the energy input has been examined. The numerical model solves the set of one-dimensional two-fluid hydrodynamic equations in a simple vertical magnetic flux tube. The atmosphere responds to both the increase and decrease in energy deposition by smoothly readjusting the temperature gradient and the amount of material in the region of peak radiating efficiency to radiate away energy being deposited. At no time during this readjustment is a departure from a thin laminar transition region structure seen. In addition, a time-dependent description of the nonequilibrium ionization of all of the ionization stages of oxygen has been included. This calculation is coupled with the self-consistent calculations of the dynamical variables. It is found that the nonequilibrium ionization balance calculations for both heating and cooling small loops in the quiet sun predict relative ionic abundances which differ substantially from those which would be predicted by an equilibrium calculation
57Fe n.m.r. spectroscopy of heme proteins: chemical shift anisotropy and relaxation parameters of carbonylmyoglobin (1985)

L. Baltzer, E. D. Becker, R. G. Tschudin and O. A. Gansow, J. Chem. Soc., Chem. Commun., 1985, 1040 DOI: 10.1039/C39850001040
New β-cyclodextrin derivatives possessing biologically active saccharide antennae (1993)

Abstract The synthesis of monosubstituted β-cyclodextrin derivatives having the monosaccharides, β-D-glucose, β-D-galactose, α-D-mannose, β-L and β-D-fucose linked to the macrocycle via a C9 spacer chain is described. The approach is based on the highly efficient coupling of the NCS sugar derivatives to monomethyl nonanedicarboxylate to generate a stable amido linkage. The NMR studies show the saccharide antennae to be oriented into the environment and not towards the CD cavity.
MIRG2010 Study: Molecular Interactions in a Three Component System (2010)

r2-1 The MIRG 2010 Study was designed to benchmark the capabilities of different laboratories to determine whether two proteins that bind to a common third protein do so synergistically, competitively, or independently. This is a common question that arises during the discovery of protein therapeutic candidates, where it needs to be determined if the candidates bind to the same location on the target molecule or not.It is also a common question from proteomic pull-down and other types of experiments, where multiple proteins are identified as “interacting,” but it can not be determined from that data alone whether the proteins form a ternary complex or bind competitively.As Chair of the MIRG, I'll make a few introductory remarks about the project, and turn the podium over to the MIRG speakers who will give an update on the MIRG 2010 Study.
The growth of magnetic Fe<sub>x</sub>N thin films under ion bombardment (1992)

Abstract The bombardment of thin films with energetic ion beams during the growing process (IBAD) may result in either physical, chemical or structural changes in the nature of the film. Many properties which are sensitive to these microstructural aspects can be expected to reflect the bombardment induced changes. We report here on the magnetic and compositional characteristics of iron nitride thin films grown in a nitrogen atmosphere during bombardment with an Ar+ beam.
Pneumatic instrument gas bleed reduction strategy and practical application (1997)

It has been common practice in the gas industry to power pneumatic instruments from natural gas. It was thought to be practical, inexpensive and harmless. In recent years, however, the view has changed. Methane is a potent greenhouse gas. The escape of methane into the Earth`s atmosphere contributes significantly to global warming. In fact, 18% of all global warming is now attributed to methane. The size of the methane problem is second only to carbon dioxide, and nearly twice the impact of the much discussed chlorinated fluorocarbons. This is a problem created by literally a million tiny flow streams, individually not a concern, but collectively, creating a threat to us all. In addition to the environmental impact, there are also safety, operational and financial impacts to consider. This article deals with cost-effective ways to stop or slow the pneumatic instrument related bleed of natural gas to the atmosphere.
Experimental Study of LNAPL Contaminated Soil Surveys Using HDR and GPR Method (2012)

Soil contamination is one of the important global environmental problems. Geophysical survey methods base on the physical properties differences of soil, such as electrical properties, magnetic, elasticity, and so on. When the LNAPL leak into the soil, it would cause local changes of the soil physical properties. So, in this paper, we used high density resistivity method and ground penetrating radar method, combined with the drilling verification, a field experiment was carried out to study the relation between geophysical anomalies with the distribution of contaminated soil. The result shows that the two methods have strong practicability in contamination detection. The high density resistivity method can describe the range of contaminated area, but it is great than the actual one, however, the ground penetrating radar method has obvious superiority in this respect. In order to promote the application of geophysical prospecting methods in environment contamination survey, this paper also discusses some limitations of these methods.
Response of acclimated and un‐acclimated activated sludge to 2‐nitrophenol (1993)

Abstract The study has compared the removal of 2‐nitrophenol (ONP) and oxygen consumption patterns in batch respirometers with constant level of easily biodegradable biogenic substrate simulating municipal sewage. Two types of activated sludge biomass were used: sludge previously acclimated to the levels of ONP in the range of 10–300 mg 1‐1, and un‐acclimated sludge. The run with acclimated sludge, subjected to batch doses of 400 to 500 mg 1‐1 ONP, demonstrated immediate conversion of ONP at a rate of 4 to 5 mg g‐1 VSS.h, which was not affected by repeated addition of ONP after its complete disappearance, and in spite of accumulation of the degradation products. The run with un‐acclimated sludge, subjected to ONP levels of 5 to 300 mg 1‐1, has demonstrated a 170 to 230 hour lag before initiation of rapid and complete conversion of ONP. The oxygen uptake patterns for this run indicated suppression of utilization of the biogenic substrate until full conversion of ONP. Following the ONP removal the oxygen uptake rates increased, particularly in the respirometers with higher initial levels of ONP.
The Photochemical Addition of Methyl Azidoformate to 2-Butyne (1966)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Photochemical Addition of Methyl Azidoformate to 2-ButyneJerrold Meinwald and Donald H. AueCite this: J. Am. Chem. Soc. 1966, 88, 12, 2849–2850Publication Date (Print):June 1, 1966Publication History Published online1 May 2002Published inissue 1 June 1966https://pubs.acs.org/doi/10.1021/ja00964a041https://doi.org/10.1021/ja00964a041research-articleACS PublicationsRequest reuse permissionsArticle Views99Altmetric-Citations26LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
FAILURE OF SOMATOSTATIN TO DIAGNOSE ORGANIC HYPERINSULINISM (1978)

In four patients with organic hyperinsulinism (two with surgically proven beta-cell adenomas of the body of the pancreas) a standard tolbutamide test during continuous somatostatin infusion (5 microgram/min) was carried out. Tolbutamide induced insulin release was completely inhibited by somatostatin as in normal subjects. These results suggest that the inhibition test with somatostatin does not seem to be a better or safer way of diagnosing insulin producing tumours.
SDHB mutation and a large asymptomatic paraganglioma in a young woman: the importance of taking a good family history (2013)

A 23-year old woman (III2 in Fig.
Pressure and temperature dependence of laser-induced fluorescence of Sm:YAG to 100 kbar and 700 °C and an empirical model (1990)

The inability to measure pressure with accuracy at high temperature has been a hindrance to the development of simultaneous high-temperature, high-pressure experimental techniques. The results of recent laser-induced fluorescence studies at high temperature and high pressure indicate that Sm:YAG is a promising pressure calibrant with very low-temperature sensitivity. The most intense feature in the fluorescence spectrum is a doublet at 16186.5 cm−1. The Sm:YAG doublet exhibits a pressure-induced peak shift comparable to the R1 shift of ruby. However, the temperature-induced shift of the doublet is almost two orders of magnitude less than that observed for the R1 peak. Simultaneous high-pressure-temperature experiments indicate that the pressure and temperature effects on the frequency and line shape can be added linearly. An empirical model based on the linear combination of pressure dependent frequency shift and temperature dependent linewidth and intensity ratio successfully predicts the doublet line shape at simultaneous pressure and temperature. Use of the model facilitates measurement of peak position at high temperature resulting in improved accuracy and repeatability of the pressure determination. Pressure measurements at 400 °C and 40 kbar based on the Sm:YAG doublet peak position agree with the temperature-corrected ruby R1 pressure measurement to within 3 kbar. At 15 kbar and 900 °C the uncertainty in the Sm:YAG fluorescence peak wavelength is 5 cm−1 due to temperature-induced line broadening; this corresponds to an uncertainty in the pressure determination of ±2.5 kbar. The high thermal and chemical stability of YAG materials make Sm:YAG an ideal pressure calibrant for high-temperature applications. In addition the frequency and intensity of the Sm:YAG fluorescence allow simple conversion from experimental setups designed for ruby fluorescence measurement.
Effect of Humidity and Water Content on the Cure Behavior of a Natural-Rubber Accelerated Sulfur Compound (1992)

Abstract Certain accelerators are susceptible to chemical attack by water. Consequently, the cure behavior of compounds containing these accelerators is likely to be affected by the water content of the compound and the humidity conditions of processing and storage. A quantitative investigation into the influence of humidity and water content on cure behavior was carried out using a natural-rubber compound with MBS ( N -morpholylbenzothiozole-2-sulfenamide) as the principal accelerator. Samples of the compound were treated at different humidities, their water contents determined, and their cure curves measured. Scorch time was inversely related to treatment humidity and water content of the compound, whereas cure rate was directly related to humidity and water content. A study of the mechanism by which water affects the cure behavior of the compound revealed that hydrolysis of the accelerator, MBS, would inhibit its scorch-delay action and could produce MBT (2-mercaptobenzothiazole), which would increase the cure rate. It is concluded that compounds containing other benzothiazole sulfenamide accelerators are likely to exhibit similar behavior. The adverse effect of moisture on the cure behavior of compounds can be minimized by carrying out storage and processing at as low a humidity and temperature and for as short a time as possible.
Search for Lorentz and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi><mml:mi>T</mml:mi></mml:math> violation using sidereal time dependence of neutrino flavor transitions over a short baseline (2017)

A class of extensions of the Standard Model allows Lorentz and CPT violations, which can be identified by the observation of sidereal modulations in the neutrino interaction rate. A search for such modulations was performed using the T2K on-axis near detector. Two complementary methods were used in this study, both of which resulted in no evidence of a signal. Limits on associated Lorentz and CPT-violating terms from the Standard Model extension have been derived by taking into account their correlations in this model for the first time. These results imply such symmetry violations are suppressed by a factor of more than 10(20) at the GeV scale.
ChemInform Abstract: Facile Preparation of 1,6‐Anhydro‐2‐azido‐3‐O‐benzyl‐2‐deoxy‐β‐D‐ glucopyranose and Its 4‐O‐Substituted Derivatives. (1994)

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.
cDNA cloning and expression of human rotavirus outer capsid protein VP7 in insect cells (1998)

Rotavirus is a major cause of severe gastroenteritis in young children and animals throughout the world. The VP7 of rotavirus is thought to induce the synthesis of neutralizing antibodies and to be responsible for determining viral serotypes. The cDNA coding for the VP7 capsid protein of human rotavirus, obtained from Korean patients (HRV-Y14), was cloned and its nucleotide sequence was determined. Comparative analysis of the nucleotide sequences between VP7 of Y14 and that of other foreign isolates showed 92.7%∼95.2% homology to G1 serotypes (RV-4, KU, K8, WA), 74.2% homolgy to G2 serotype HU-5, 76.4% homology to G3 serotype SA-11, and 77.6% homology to G4 serotype A01321. These data suggest that HRV-Y14 can be classified as a G1 serotype. cDNA coding for VP7 of HRV-Y14 was subcloned into the baculovirus vector and the VP7 glycoprotein was expressed in insect cells. The expressed proteins in Sf9 cell extract and tissue culture fluid were separated on SDS-PAGE, and Western blot analysis with monoclonal antibody raised against the synthetic peptide containing 21 amino acids within the VP7 conserved region was performed. The molecular weight of recombinant VP7 was estimated to be 36 kDa which is about the same size as the native VP7. Addition of tunicamycin in the culture media caused a reduction of the molecular weight of the recombinant VP7 indicating that the expressed protein was glycosylated.
Silencing the myotrophin gene by RNA interference leads to the regression of cardiac hypertrophy (2009)

Myotrophin-induced activation of NF-kappaB has been shown to be associated with cardiac hypertrophy (CH) that progresses to heart failure (HF). In the present study, we examined the cause-and-effect relationship between myotrophin and NF-kappaB activation using small hairpin RNA (shRNA) against myotrophin both in vitro (using neonatal rat myocytes) and in vivo [using myotrophin transgenic (Myo-Tg) mice, which overexpress myotrophin in the heart, develop CH, and gradually progress to HF]. Among several lentiviral vectors expressing myotrophin shRNAs, L-sh-109 showed the best silencing effect at both the mRNA (155.3 +/- 5.9 vs. 32.5 +/- 5.5, P < 0.001) and protein levels associated with a significant reduction of atrial natriuretic factor (ANF) and NF-kappaB. In vivo, when L-sh-109 was delivered directly into the hearts of 10-wk-old Myo-Tg mice, we observed a significant regression of cardiac mass (8.0 vs. 5.7 mg/g, P < 0.001) and myotrophin gene expression (54.5% over untreated Myo-Tg mice, P < 0.001) associated with a reduction in ANF and NF-kappaB signaling components. Our data suggest that using RNA interference to silence the myotrophin gene prevents NF-kappaB activation, associated with an attenuation of CH. This strategy could be an excellent therapeutic means for the treatment of CH and HF.
Albumin Therapy in Clinical Practice (2005)

Albumin is the predominant product of hepatic protein synthesis and one of the more abundant plasma proteins. Among its multiple physiologic roles, it plays an essential part in the generation of colloid-oncotic pressure. In the United States, the indications for which albumin therapy are considered include hypovolemia or shock, burns, hypoalbuminemia, surgery or trauma, cardiopulmonary bypass, acute respiratory distress syndrome, hemodialysis, and sequestration of protein-rich fluids. The use of this relatively expensive therapy accounts for up to 30% of the total pharmacy budget in certain hospitals. The use of albumin therapy in different clinical situations and its influence in morbidity and mortality have been reviewed in multiple randomized controlled trials and meta-analyses. Despite frequent reviews, the use of albumin remains controversial in several clinical situations. At the same time, these valuable reviews seem to have documented the advantages of albumin therapy in the management of ascites and clarified the use of albumin in volume resuscitation. More studies have been recommended to investigate the use of albumin in different doses and its role in hypoalbuminemia. This article will provide an overview of albumin metabolism, use of albumin for volume expansion, the potential therapeutic role of albumin in liver disease, and the role of albumin therapy in nutrition.
The Effect of Hypoxia on Traumatic Head Injury in Rats: Alterations in Neurologic Function, Brain Edema, and Cerebral Blood Flow (1987)

We evaluated the effects of early posttraumatic hypoxia on neurologic function, magnetic resonance images (MRI), brain tissue specific gravities, and cerebral blood flow (CBF) in head-injured rats. By itself, an hypoxic insult (PaO2 40 mm Hg for 30 min) had little effect on any measure of cerebral function. After temporal fluid-percussion impact injury, however, hypoxia significantly increased morbidity. Of rats subjected to impact (4.9 +/- 0.3 atm) plus hypoxia, 71% had motor weakness contralateral to the impact side 24 h after injury, while only 29% of rats subjected to impact alone had demonstrable weakness (p less than 0.05). Lesions observed on MR images 24 h after injury were restricted to the impact site in rats with impact injury alone, but extensive areas with longer T1 relaxation times were observed throughout the ipsilateral cortex in rats with impact injury and hypoxic insult. Brain tissue specific gravity measurements indicated that much more widespread and severe edema developed in rats with impact injury and hypoxia. [14C]Iodoantipyrine autoradiography performed 24 h after injury showed that there was extensive hypoperfusion of the entire ipsilateral cortex in rats with impact injury and hypoxia. These results show that large areas of impact-injured brain are extremely vulnerable to secondary insults that can irreparably damage neural tissue, and provide experimental evidence for the observed adverse effects of hypoxia on outcome after human head injury.