gebhart/patrepeval huggingface dataset:
Optimal path planning for DRSSI based localization of an RF source by multiple UAVs (2014)

The Radio Frequency (RF) source localization accuracy depends not only on the measurement performance of sensors, but also on the relative location of the sensors and the source. This paper investigates the impact of UAVs, equipped with RSSI sensors, formation and trajectory on the aerial RF source localization performance for Differential Received Signal Strength Indication (DRSSI) based approach in None Line Of Sight (NLOS) propagation condition. To eliminate the need for knowing the power of the signal source the DRSSI approach is applied. The collected measurements in each waypoint are used to estimate the location of the source iteratively by the use of Extended Kalman Filter (EKF). The Cramer-Rao Lower Bound (CRLB), which expresses a lower bound on the variance of any unbiased estimator, is used as the objective function for the proposed algorithm. Due to the complexity of Jacobin calculation to perform global CRLB optimization, the local values of CRLBs in the current waypoint and the next probable waypoints are used to determine the best path. Maximizing the determinant of the inverse of CRLB, i.e. the Fisher Information Matrix, in each measurement instance over the next probable waypoint, minimizes the estimation uncertainty area. The effectiveness of the proposed algorithm is illustrated by Monte-Carlo simulations and compared with the basic bio-inspired approach of going toward the estimated direction of the source.
Prostaglandins and related substances : a practical approach (1987)

Section I: Introduction and metabolism Section II: Sampling and extraction Section III: Physio-chemical methods Section IV: Pharmacological and immunoassays Section V: Enzymology and lipid peroxidation Section VI: Related techniques Appendix: Eicosanoids: structure, availability, storage and stability Abbreviations Introduction to the eicosanoids Metabolism of prostaglandins and lipoxygenase products: relevance for eicosanoid assay Tissue sampling and preparation Extraction of eicosanoids from biological samples Thin-layer chromatography (including radio thin-layer chromatography and autoradiography of prostaglandins and related compounds High pressure liquid chromatography in the analysis of arachidonic acid metabolites Gas chromatography and mass spectrometry of eicosanoids Measurement of prostaglandins, thromboxanes and leukotrienes by smooth muscle bioassay Aggregometry techniques for prostanoid study and evaluation Radioimmunoassay of eicosanoids Enzyme immunoassay Cyclo-oxygenases: measurement, purification and properties Lipoxygenases: measurement, characterization and properties Lipid peroxidation Quantitative measurement of arachidonic acid in tissues or fluids Methods in prostanoid receptor classification Paf-acether (platelet-activating factor) Appendix Index
Special purpose processor speeds up DSP functions (2002)

A new class of arithmetic datapath processors are available in either device or embedded form. These reconfigurable arithmetic datapath (RADTM) devices offer reconfigurablilty of FPGAs with the performance of algorithm specific silicon designs. The heart of the RAD architecture is a MacroSequencer. By programming the MacroSequencer to a specific algorithm, the hardware configures itself to that algorithm. Operations are performed concurrently in the pipelined structure. All programming, short term data storage and coefficients are stored within the MacroSequencer. The RAD MacroSequencer may be reconfigured to a new algorithm in as little as 25 ms. The RAD architecture is particularly suited to accelerating the performance of data stream algorithms.
Ultrastructure of the human egg. (1997)

This report on the fine structure of human oocyte is based on 20 years research where over 2000 eggs were examined by TEM in conjunction with our research on various methods of assisted reproduction. The eggs were routinely fixed in glutaraldehyde/osmium tetroxide, flat embedded in araldite, serially sectioned and examined by TEM. The oocytes were usually recovered after gonadotrophin stimulation. The general organisation of the mature human oocyte conforms to that of other mammals but has some unique features. The oocyte has the basic cell organelles such as mitochondria, lysosomes, two types of smooth endoplasmic reticulum (SER)-vesicular and tubular aggregates, multivesicular residual bodies, lipofuschin, microfilaments and microtubules. Golgi, RER and ribosomes are very rare and the egg has no yolk. It's surface has few microvilli, pinocytolic caveolae and 1-3 layers of cortical granules. The zona pellucida is composed of fine fibrils and granules embedded in an amorphous matrix and encloses a perivitelline space containing polar bodies. Remnants of corona cell junctions may be found at the oolemma. The metaphase II spindle is often oriented perpendicular to the surface and is barrel-shaped, anastral and lacks centrioles. Osmiophilic centrosomes are not demonstrable in human eggs since the maternal centrosome is inactive. The sperm centrosome organizes mitotic spindles of the embryo after fertilization, whereas in mice the maternal centrosome is active and dominant during cleavage. The stages of peri-ovulatory maturation and differences in oocyte structure during maturation are also presented. Oocytes ageing in culture show progressive swelling of vesicular SER culminating in vacuolation, denser mitochondria (clouding together or associated with vacuoles) peripheral conglomerations or centripetal migration of cortical granules and increased lysosomal activity. Prolonged culture also causes displacement and disorganisation of metaphase II spindles, loss of microtubules and consequent displacement of chromosomes. Evidently the cytoskeleton becomes disorganized. Some observations on oocyte maturation in vitro and spontaneous activation of oocytes are included.
History‐enriched digital objects: Prototypes and policy issues (1994)

Recording on digital objects (e.g., reports, forms, source‐code, manual pages, email, spreadsheets) the interaction events that comprise their use makes it possible on future occasions, when the objects are used again, to display graphical abstractions of the accrued histories as parts of the objects themselves. It also makes it possible to search for objects by their use and, under certain circumstances, to find people through objects used in common. Prototypes built to explore this idea (e.g., Edit Wear, Read Wear, Email Wear, and Vita Service) demonstrate the costs and benefits of using objects in the context of their interaction histories. The prototypes also raise issues concerning the nature, ownership, and appropriate use of personal information.
Application of voltage PWM rectifier in the charger of electric vehicles based on power feed-forward decoupling control (2011)

According to the shortage of Stable output voltage capability and harmonics processing capability in the charger of electric vehicle, PWM Rectifier control is introduced for the charger circuit of electric vehicle, a voltage PWM Rectifier control strategy is proposed based on power feed-forward decoupling control. The model of this control strategy is simulated with PSCAD. Simulation result shows that, this control strategy can fast response with the system. It has simple structure and strong resistance to the disturbance of the load.
A comparison of pitch prediction algorithms in forward and backward adaptive CELP systems (1992)

Compares several pitch prediction algorithms in forward and backward adaptive CELP system. Since a forward adaptation system uses the original speech signal to compute the filter parameters, while a backward adaptation system only uses the locally decoded speech which contains encoding noise, there are important differences between the two systems in the implementation of a pitch prediction algorithm. The authors investigated such pitch prediction strategies in these two systems in terms of the pitch prediction configuration, the pitch determination algorithms, and the pitch predictor adaptation technique.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Mild, efficient trimethylaluminum-mediated cyclopropanations. An innovative synthesis of the new dehydrogenase inhibitor spiropentaneacetic acid (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMild, efficient trimethylaluminum-mediated cyclopropanations. An innovative synthesis of the new dehydrogenase inhibitor spiropentaneacetic acidJennifer M. Russo and William A. PriceCite this: J. Org. Chem. 1993, 58, 13, 3589–3590Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June 1993https://pubs.acs.org/doi/10.1021/jo00065a026https://doi.org/10.1021/jo00065a026research-articleACS PublicationsRequest reuse permissionsArticle Views606Altmetric-Citations32LEARN 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
Antibody affinity and valence in viral neutralization. (1972)

This work shows that viral neutralization appears to be a function not only of antibody concentration but also of affinity, valence, and possibly molecular configuration of antibody. When antibody molecules of similar valence are grouped, neutralization increases with increasing molecular affinity. Conversely, if antibody molecules have comparable affinities, an increase in valence markedly increases neutralization. From these studies it appears that valency is perhaps the greater factor contributing to the neutralizing efficiency of antibody molecules. These findings also seem to indicate that the phage neutralization assay may not be accurate for quantitative antibody comparisons.
Elements of Olfactory Reception in Adult <i>Drosophila melanogaster</i> (2013)

The olfactory system of Drosophila has become an attractive and simple model to investigate olfaction because it follows the same organizational principles of vertebrates, and the results can be directly applied to other insects with economic and sanitary relevance. Here, we review the structural elements of the Drosophila olfactory reception organs at the level of the cells and molecules involved. This article is intended to reflect the structural basis underlying the functional variability of the detection of an olfactory universe composed of thousands of odors. At the genetic level, we further detail the genes and transcription factors (TF) that determine the structural variability. The fly's olfactory receptor organs are the third antennal segments and the maxillary palps, which are covered with sensory hairs called sensilla. These sensilla house the odorant receptor neurons (ORNs) that express one or few odorant receptors in a stereotyped pattern regulated by combinations of TF. Also, perireceptor events, such as odor molecules transport to their receptors, are carried out by odorant binding proteins. In addition, the rapid odorant inactivation to preclude saturation of the system occurs by biotransformation and detoxification enzymes. These additional events take place in the lymph that surrounds the ORNs. We include some data on ionotropic and metabotropic olfactory transduction, although this issue is still under debate in Drosophila.
Increasing incidence of enteropathy‐associated T‐cell lymphoma in the United States, 1973‐2008 (2011)

The current results indicated a significant increase in the incidence of EATL in the United States, which may reflect the increasing seroprevalence of CD and better recognition of rare types of T-cell lymphomas. The incidence may continue to rise given the large ratio of undiagnosed-to-diagnosed individuals with CD in the United States.
Getting past the game (2004)

While politics have become a race to the finish, voters may be better served by issues coverage than political strategy
Autoprotolysis constants of ethylene glycol in isodielectric mixtures of ethylene glycol and N, N-dimethyl formamide at 298.15 K and the related Gibbs energies of transfer (2007)

Autoprotolysis constants (K s ) of ethylene glycol (EgOH) have been determined in the isodielectric mixtures of protic ethylene glycol and dipolar aprotic N,N-dimethyl formamide (20, 40 and 60 wt% DMF) at 298.15 K from emf measurements of cells comprising glass GE (H + ) and Ag-AgCl electrodes. Transfer Gibbs energies of glycoxide ion (EgO ), ΔG 0 t (EgO - ) have been evaluated therefrom using literature values of transfer Gibbs energies of H + , ΔG 0 t (H + ) based on TATB assumption. These are explained in the light of ion-solvent interactions as guided by physicochemical properties of the solvents. The results show that while the acidity of EgOH + DMF mixed solvents decreases with co-solvent due to the increased aproticity and anionophobicity of the cosolvent molecules, the basicity decreases due to the amalgamated effects of increased aproticity as well as increased protophilicity of DMF.
An FPGA-Based Quench Detection and Protection System for Superconducting Accelerator Magnets (2006)

A new quench detection and protection system for superconducting accelerator magnets was developed for the Fermilab’s Magnet Test Facility (MTF). This system is based on a Field-Programmable Gate Array (FPGA) module, and it is made of mostly commercially available, integrated hardware and software components. It provides all the functions of our existing VME-based quench detection and protection system, but in addition the new system is easily scalable to protect multiple magnets powered independently and provides a more powerful user interface and analysis tools. The new system has been used successfully for testing LHC Interaction Region Quadrupoles correctors and High Field Magnet HFDM04. In this paper we describe the system and present results.
Forced Expression of α-Myosin Heavy Chain in the Rabbit Ventricle Results in Cardioprotection Under Cardiomyopathic Conditions (2005)

Transgenic expression of alpha-MHC does not have any apparent detrimental effects under basal conditions and is cardioprotective in experimental tachycardia-induced cardiomyopathy.
Optical super-resolution microscope based on microsphere (2012)

We experimentally demonstrated that the microsphere on the top surface of the sample can enhance the imaging capability of microscope, and possible to arrive a resolution below the conventional diffractive limit. The principle of the super-resolution was discussed, and mainly due to the transformation of surface wave to propagation wave. The mechanism of super-resolution and the corresponding phenomenon are presented in the paper.
Estudio geomorfológico de las formaciones detríticas terciarias sitas al norte de la cuenca del Tajo.. Zona I: Valdemorillo-Torrelaguna (Madrid) (1986)

espanolSe analizan en este trabajo las caracteristicas geomorfologicas, geologicas y sedimentologicas de las distintas acumulaciones detriticas que, de variada edad, se situan al norte de la cuenca sedimentaria del Tajo entre Valdemorillo y Torrelaguna (Madrid). Entre las distintas formaciones existentes en el sector se ha tratado, por su importancia y con especial atencion, la denominada Formacion de grandes bloques; en ella se han determinado varias generaciones, una posicion geomorfologica compleja y una serie de consideraciones que merecen una discusion y confrontacion con las hipotesis e interpretaciones establecidas. EnglishIn this work analysed the geomorphological, geological and sedimentological characteristics of the different detritic accumulations that with diverse age, are located at the north of the Tajo basin, between Valdemorillo and Torrelaguna (Madrid). Among the formations existing in this area, has been considered with special attention, given its importance, the one called Formacion de grandes bloques. In this unit has been distinguished several generations and a complex geomorphological position; the analysis raises a series of considerations that deserves discussion and comparison with the established hypotesis and interpretations.
Jacobsen’s Catalyst for Hydrolytic Kinetic Resolution: Structure Elucidation of Paramagnetic Co(III) Salen Complexes in Solution via Combined NMR and Quantum Chemical Studies (2009)

NMR investigation of chiral Co(III) salen catalysts, important for enantioselective hydrolytic kinetic resolution (HKR), revealed the presence of a paramagnetic high-spin Co(III) species, which is in solvent- and temperature-dependent equilibrium with the known diamagnetic low-spin Co(III) complex. Combined with quantum chemical DFT calculations, the para- and diamagnetic chemical shifts were used to study the salen ligand conformation of the para- and diamagnetic complexes, resulting in a mechanistic proposal for the enantioselective step in catalysis.
The formation of fibrils from collagen solutions 1. The effect of experimental conditions: kinetic and electron-microscope studies (1960)

Research Article| June 01 1960 The formation of fibrils from collagen solutions 1. The effect of experimental conditions: kinetic and electron-microscope studies* G. C. Wood; G. C. Wood † 1Department of Medicine, University of Leeds Search for other works by this author on: This Site PubMed Google Scholar M. K. Keech M. K. Keech ‡ 1Department of Medicine, University of Leeds Search for other works by this author on: This Site PubMed Google Scholar Biochem J (1960) 75 (3): 588–598. https://doi.org/10.1042/bj0750588 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation G. C. Wood, M. K. Keech; The formation of fibrils from collagen solutions 1. The effect of experimental conditions: kinetic and electron-microscope studies. Biochem J 1 June 1960; 75 (3): 588–598. doi: https://doi.org/10.1042/bj0750588 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1960 CAMBRIDGE UNIVERSITY PRESS1960 Article PDF first page preview Close Modal You do not currently have access to this content.
Combined right transradial coronary angiography and selective carotid angiography: Safety and feasibility in unselected patients (2001)

We evaluated the safety and feasibility of ad hoc carotid angiography following the right transradial coronary angiography. Selective carotid angiography was performed subsequent to coronary angiography in 213 consecutive patients. A 5 Fr Simmons catheter was reformed in descending or ascending aorta, then, withdrawn and rotated to cannulate the left and right carotid artery. Both carotid angiography was performed selectively in 211 (99%) patients. In two patients with severely tortuous subclavian artery, selective cannulation of the left carotid artery failed. There was no thromboembolism or arterial dissection. After the learning phase of 50 patients, the time to reform the catheter in aorta and to cannulate the left and right carotid artery was 50 +/- 77, 66 +/- 68, and 58 +/- 57 sec, respectively. Total procedural time was 195 +/- 145 sec. In conclusion, ad hoc carotid angiography can be performed reliably and safely following the right transradial coronary angiography. It might be useful for evaluation of an isolated or associated carotid artery stenosis. Cathet Cardiovasc Intervent 2001;53:380-385.
BRCA Mutation Testing in Determining Breast Cancer Therapy (2011)

BRCA mutation-associated breast cancer differs from sporadic breast cancer with regard to future cancer risks and sensitivity to systemic therapies. Now that rapid genetic testing for BRCA1 and BRCA2 mutations is available at the time of breast cancer diagnosis, BRCA mutation status can be considered when making treatment and prevention decisions for BRCA mutation carriers with breast cancer. This article reviews surgical options for management of affected BRCA mutation carriers with emphasis on the risks of ipsilateral recurrence and contralateral breast cancer. The roles of breast-conserving surgery, prophylactic mastectomy, and oophorectomy are reviewed. In addition, the sensitivity of BRCA mutation-associated breast cancer to endocrine therapy, platinum chemotherapy, and poly (ADP-ribose) polymerase inhibitors is reviewed.
The expression of tenascin by neural crest cells and glia (1991)

The extracellular matrix glycoprotein tenascin is concentrated in both the embryo and adult in regions where cell motility is taking place. For example, during avian neural crest morphogenesis tenascin is concentrated in the rostral half of the sclerotome, precisely where the neural crest cells themselves are found. Previous in vitro studies indicated that somite cells were the source of this tenascin, implying a role for tenascin in directing the ventral migration of neural crest cells and thus the establishment of the periodic arrangement of the PNS. In this study, we have used a cDNA probe to identify the source of tenascin found along the pathways of the neural crest using in situ hybridization. In tissue sections, individual cells found along the neural crest migratory pathways, both before entering the somites and within the somites, are strongly labelled by the tenascin cDNA. In vitro neural crest cells are more strongly labelled with the tenascin probe than somite cells. Finally, western blotting has been used to identify tenascin in culture medium conditioned by neural crest cells. This indicates that neural crest cells themselves are the source of much of the tenascin found lining their migratory pathways, and that interactions with somite cells may not be needed to induce the expression of tenascin. We have also studied the distribution of tenascin mRNA in the developing spinal cord and spinal ganglia. At embryonic days 7 and 10, tenascin cDNA hybridizes within cells that appear to be migrating from the ependymal layer to the white matter, as well as within cells in the dorsal roots.(ABSTRACT TRUNCATED AT 250 WORDS)
Magnetic Hysteresis in Superconducting Thin Films (1965)

Tin films were deposited from the vapor at various substrate temperatures and their superconducting properties determined as a function of film structure. Magnetic hysteresis in the superconducting state to normal state phase transition of these films increased with increasing grain size. Hysteresis could be attributed solely to supercooling only in the smaller-grained films deposited at low substrate temperatures. For the larger-grained films, superheating was also observed. The hysteresis observed experimentally was in agreement with the predictions of the Ginzburg-Landau theory of superconductivity.