gebhart/patrepeval huggingface dataset:
Erasure Correcting Codes for Opportunistic Spectrum Access (OSA). (2014)

The emergence of new devices especially the smartphones and tablets having a lot of new applications have rocketed the wireless traffic in recent years and this is the cause of main surge in the demand of radio spectrum. There is a need of either more spectrum or to use existing spectrum more efficiently due to dramatic increase in the demand of limited spectrum. Among the new dynamic access schemes designed to use the spectrum more efficiently opportunistic spectrum access (OSA) is currently addressed when one or more secondary users (SU) are allowed to access the channel when the PU is not transmitting. The erasure correcting codes are therefore envisioned to recover the lost data due to sensing impairments. We define the parameter efficiency of SU and optimize it in-terms of spectrum utilization keeping into account sensing impairments, code parameters and the activity of PU. Finally, the spectrum access for multiple secondary users is addressed when there is no primary and each user has equal right to access the channel. The interesting scenarios are Cognitive radio networks and WiFi where 802.11 protocol gives the specification for MAC layer. The throughput curvesachieved by retransmission and using various erasure correcting codes are compared. This modification in MAC layer will reduce the long waiting time to access the channel, as the number of users are increased.
Control architecture of material handling vehicles (2011)

This paper presents the architecture of autonomous material handling vehicles. The centralized coordination of multiple vehicles and three-layer architecture (deliberative, sequencing, and reflexive layers) are adopted. The navigation controls, including configuration control, visual servoing, path tracking, and collision avoidance, are developed. The finite state machine (FSM) that supervises the control modules to complete the material handling task is elucidated. The experimental results of a forklift transporting a pallet from an initial to a desired goal configuration are demonstrated.
Improved identification of underground targets using video pulse radars by elimination of undesired natural resonances (1983)

Measured signals from underground scatterers using video pulse radars are corrupted by undesired resonances such as those associated with the antenna and various forms of clutter. Techniques are introduced to remove or suppress the signal associated with these resonances in an effort to enhance the target response. The resonances are suppressed by using a difference equation requiring the knowledge only of the poles of the original scattered signal, which are independent of excitation.
Control of anion and fluid secretion by apical P<sub>2</sub>‐purinoceptors in the rat epididymis (1988)

1. Exogenous adenosine triphosphate (ATP) stimulated the short circuit current (SCC) in primary monolayer cultures of rat epididymal cells when added to the apical but not to the basolateral side of the monolayers. Half-maximal stimulation was achieved at 5 x 10(-8) M ATP. 2. The increase in SCC induced by ATP was dependent on the presence of extracellular Cl in the bathing solutions. 3. The effects of other adenosine derivatives, and purine and pyrimidine nucleotides were studied. Their orders of potency in stimulating SCC were: ATP greater than adenosine diphosphate much greater than adenosine monophosphate, adenosine, and ATP greater than inosine triphosphate greater than guanosine triphosphate greater than cytidine triphosphate. These results indicate that ATP interacts with a P2-purinoceptor at the apical membrane of the epididymal cells. 4. The SCC response to ATP was not blocked by 8-phenyltheophylline, a P1-purinoceptor antagonist or by propranolol. Although pretreatment of the cultures with piroxicam abolished the SCC response to bradykinin, it did not affect the response to ATP. This indicates that the SCC response to ATP was not mediated by an increase in the synthesis of prostaglandins. 5. Serosal to mucosal Cl flux (Js-m Cl) and net water flux were measured in the luminally perfused rat epididymis in vivo. ATP (1 microM) added to the luminal perfusion solution caused an increase in Js-m Cl and net water secretion by the epididymal duct. 6. Since spermatozoa contain a high concentration of ATP, it is proposed that ATP released from spermatozoa may affect anion and fluid secretion by the epididymis. The control of secretion via the apical purinoceptors offers a means by which spermatozoa regulate the fluidity of their own environment.
Synergism Between ERα Transactivation Function 1 (AF-1) and AF-2 Mediated by Steroid Receptor Coactivator Protein-1: Requirement for the AF-1 α-Helical Core and for a Direct Interaction Between the N- and C-Terminal Domains (2001)

The transcriptional activity of ERalpha (or NR3A1) after binding of ligand is mediated through synergistic action between activation functions (AFs) AF-1 and AF-2 and the transcriptional machinery. This is functionally achieved by bridging coactivators such as CEBP binding protein/p300 and members of the p160 subfamily such as steroid receptor coactivator protein-1 (SRC-1). We previously identified a conserved potential alpha-helical structure within the AF-1 functional core, and by evaluating point mutants of human ERalpha (hERalpha) within this region, we show that in transfection experiments this structure is required for synergism between SRC-1 and hERalpha. We report that the transcriptional synergism between AF-1 mutants and SRC-1 was abolished in AF-1-sensitive cells such as HepG2, whereas it was reduced by 50% in CHO-K1 cells, which have a mixed context that is sensitive to both the AF-1 and AF-2 regions of hERalpha. Glutathione-S-transferase pulldown assays demonstrate that the AF-1 core is able and sufficient for the hERalpha N-terminal region to interact with SRC-1. Interestingly, an enhancement of this recruitment in the presence of the hERalpha ligand-binding domain was observed, which was found to be dependent on a direct interaction between the N-terminal B domain and the ligand-binding domain. Another functional consequence of this physical interaction, which is promoted by both partial and full agonists of hERalpha, was an increase in the phosphorylation state of the N-terminal domain. Binding of 4-hydroxytamoxifen (OHT) to the hERalpha C-terminal region induced a functional AF-1 conformation in vitro through this N- and C-terminal interaction. The involvement of an SRC-1-mediated pathway in transactivation mediated by hERalpha AF-1 was further substantiated by transfection experiments using the OHTresponsive human C3 promoter, which showed that OHT-induced hERalpha AF-1 activity was enhanced by SRC-1 and required the AF-1 alpha-helical structure. In conclusion, we demonstrate that the synergism between AF-1 and AF-2 is mediated in part by a cooperative recruitment of SRC-1 by both the AF-1 alpha-helical core and AF-2 regions and that it is stabilized by a direct interaction between the B and C-terminal domains. This interaction of SRC-1 with the AF-1 alpha-helical core is essential for both E2- and OHT-induced ERalpha activity.
Comparison of bioavailability of krill oil versus fish oil and health effect (2015)

There seems to be a difference in bioavailability of EPA and DHA after intake of KO and FO, but more studies are needed before a firm conclusion can be made. It is also necessary to document the beneficial health effects of KO with more human studies and to elucidate if these effects differ from those after regular fish and FO intake.
Technique of Organic Chemistry. Volume II. Second Edition. (1957)

ADVERTISEMENT RETURN TO ISSUEPREVArticleTechnique of Organic Chemistry. Volume II. Second Edition.Frederick F. RustCite this: J. Am. Chem. Soc. 1957, 79, 1, 254Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021/ja01558a074https://doi.org/10.1021/ja01558a074research-articleACS PublicationsRequest reuse permissionsArticle Views28Altmetric-Citations-LEARN 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
Separation of DNA restriction fragments by capillary electrophoresis using coated fused silica capillaries (1991)

The abilities of several different capillary electrophoresis techniques to separate DNA restriction fragments up to 23,000 bp were investigated. Methods employing electroosmotic flow in an untreated silica capillary were found to provide, at best, only partial resolution of the 23 fragments in a 1-kbp DNA ladder. By coating the inner walls of a silica capillary with poly(acrylamide) and filling these capillaries with buffers containing methylcellulose as a sleving medium, all fragments in the 1-kbp DNA ladder were separated. In addition, this technique facilitated the separation of the very large fragments in a lambda DNA-HindIII digest. Optimum resolution was obtained at low separation potentials using buffers containing at least 0.5% methylcellulose. The performance of this technique, i.e., resolution and quantitation, make capillary electrophoresis a powerful complement to slab gel electrophoresis and may make it a preferred alternative to both agarose gel electrophoresis and HPLC for applications such as the confirmation of plasmid integrity.
A Fuzzy Logic-Based Ranging Technique for UWB Radio Link (2006)

The fine time resolution of ultra wideband (UWB) signals enables the UWB signals have potential applications in high-resolution ranging. This paper proposes a simple method for precisely ranging by using the estimate of the time of arrival (TOA) of the direct path signal. The TOA estimates are performed by weighting the TOAs of the first path signal and the strongest path signal and the weighting coefficient is determined by a fuzzy logic technique. Measurement data of realistic UWB radio link was used in the simulation and the results showed that the proposed algorithm can reach good accuracy even in dense multipath environments
The Pottery from the Kansas Monument Site (1950)

This paper is the third in a series of preliminary reports on the excavations carried on in 1949 by the Museum of Natural History, University of Kansas, at the Kansas Monument site, the remains of a Pawnee village, in Republic County, Kansas. The first paper (Smith, 1949) summarized the work carried on at the site; the second (Smith, 1950) embodied a study of the European trade material and compared it with an inventory of goods on hand at Saint Louis in 1787. 1 now present a preliminary report on the pottery found on the surface and in the course of excavating two houses and several other features at the site. Some of the specimens are from the collections made by Messrs. Floyd Schultz and Russell Nystrom and are deposited in the Museum of Natural History.
Evolution of Hydrogen Platelets in Silicon Determined by Polarized Raman Spectroscopy (2001)

Crystalline silicon treated in a remote hydrogen plasma exhibits ${111}$ platelike defects. From polarized Raman spectroscopy, we identify two different hydrogen-related extended ${111}$ defects, which exist simultaneously in the samples: an optically dense structure with $\ensuremath{\epsilon}\ensuremath{\cong}14$ and a structure with $\ensuremath{\epsilon}\ensuremath{\cong}1$ which contains the ${\mathrm{H}}_{2}$ molecules. The platelet with $\ensuremath{\epsilon}\ensuremath{\cong}14$ is assigned to agglomerated ${\mathrm{H}}_{2}^{*}$ defects in a (111) plane. At 100 \ifmmode^\circ\else\textdegree\fi{}C, it transforms into the platelet with $\ensuremath{\epsilon}\ensuremath{\cong}1$, which is assigned to hydrogenated silicon (111) surfaces.
Purification of the nicotinic acid hydroxylase system of <i>Pseudomonas fluorescens</i> KB1 (1959)

The nicotinic acid hydroxylase system of Pseudomonas fluorescens KB 1 has previously been shown to be an adaptive enzyme which hydroxylates nicotinic acid in the C-6 position with the uptake of one molecule of oxygen for two molecules of nicotinic acid (Hughes, 1955). The reaction initiates the breakdown of nicotinic acid to ammonia and formic, acetic, lactic and malic acid according to the reactions described by Behrman & Stanier (1957). In cell-free extracts nicotinic acid is con- verted quantitatively into 6-hydroxynicotinic acid and this compound is not further metabolized. The hydroxyl group added is derived from water and not molecular oxygen, indicating that the reaction probably involves the addition of water followed by dehydrogenation with molecular oxygen as hydro- gen acceptor (Hunt, Hughes & Lowenstein, 1957, 1958). The enzyme is attached to insoluble particulate components of the cell. This paper is concerned with the purification of the. enzyme, together with the components of an associated electron-transport chain, by deoxycholate extraction of the particles, followed by ammonium sulphate fractionation. Preliminary findings of this work have been com- municated (Hunt, 1958). METHODS Growth of organisms. P. fluore8cens KB 1 was grown with aeration at 250 in an inorganic salt medium containing KH2PO4, 6-8 g., NH4C1, 1.0 g., mineral supplement (Behrman & Stanier, 1957), l O ml., MgSO4,7H20, 0-5 g., yeast extract (Oxo Ltd.), 0-2 g. and nicotinic acid, 2-5 g. per litre of demineralized water. The solution was adjusted to pH 6-8 with solid NaOH. Subcultures were maintained on slopes containing in addition 2 % of agar. For the pre- paration of large quantities of cells 401. batches of medium were inoculated with 41. of a logarithmic-phase culture, and growth was allowed to continue under forced aeration in the stainless-steel container of a commercial washing machine (Hoover Ltd.) fitted with a baffle plate and a stainless-steel cover. The airflow was maintained at levels suboptimum for maximum rates of growth. Small quanti- ties of tributyl citrate were added to minimize foaming.
Successful treatment of life-threatening postpartum hemorrhage with recombinant activated factor VII (2003)

Recombinant factor VIIa may be an alternative hemostatic agent in a patient with life-threatening postpartum hemorrhage unresponsive to conventional therapy.
A GaAs Double-Balanced Dual-Gate FET Mixer IC for UHF Receiver Front-End Applications (1985)

A double-balanced dual-gate FET mixer has been developed for application in the front-end circuit of UHF receivers. A 6--8-dB conversion gain has been obtained without an additional matching circuit over a wide frequency range from 100-800 MHz with good suppression of RF/LO feedthrough by more than 20 dB and third-order intermodulation product of --60 dB.
Topical Applications of Sodium Fluoride and Stannous Fluoride (1958)

S ODIUM FLUORIDE applied topically to the teeth gives approximately 40 percent reduction in the incidence of dental caries in children (1-3). Other fluoride compounds may be even more effective. Laboratory studies suggest that stannous fluoride is superior to sodium fluoride in reducing the solubility of powdered dental enamel (4-6) and whole tooth sections in weak organic acids (7), and experimental studies in hamsters (8) and rats (9-11) have corroborated these findings. Also, there are reports of approximately 60 percent reduction in dental caries in children when stannous preparations were used (12-14). The present study has tested further the effectiveness as dental caries preventives of 2 percent stannous fluoride and 2 percent sodium fluoride. Nearly 600 children 9-14 years old in Milwaukie and Oregon City, Oreg., participated in all phases of the 16-month study. The children were divided into two comparable groups, one group receiving stannous fluoride and the other sodium fluoride.
Frankenstein PSO applied to neural network weights and architectures (2011)

In this paper we present the FPSO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">A</sub> -FPSO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">P</sub> a modified version of Frankstein Particle Swarm Optimization (FPSO), which is used to adjust the weights and architectures of a feed forward neural network. To evaluate the algorithm we used benchmark classification problems in medical care area. The results were compared with other algorithms which use the same methodology to find out the weights and architectures.
The effects of immediate-release morphine on cognitive functioning in patients receiving chronic opioid therapy in palliative care (2005)

Morphine and other potent opioids are frequently used in palliative care and pain management. When sustained-release (SR) opioids do not provide adequate background analgesia, additional immediate-release (IR) opioid (e.g. short-acting morphine) may be required to alleviate breakthrough or episodic pain. Despite the frequent use of IR morphine on top of SR opioids, little is known about the effects of such treatment on patients' everyday cognitive functioning. This study therefore used a double-blind, placebo-controlled, cross-over design to assess cognitive functioning in 14 patients receiving palliative care. All patients were taking SR opioid preparations and required <or=2 doses of IR morphine/day. Performance on cognitive measures (as well as subjective measures of pain and mood) after a dose of IR morphine was compared with placebo. Patients experienced significantly more pain-reduction following IR morphine (P=0.03), while other measures of subjective drug effects (e.g. sedation) were largely unaffected. Patients displayed anterograde memory impairment after IR morphine relative to placebo (P=0.003). Intriguingly, patients also had significant 'retrograde' memory impairment: delayed recall of verbal information presented before IR morphine also declined (P=0.024). In addition, IR morphine reduced performance on a complex tracking task (Reitan's trails B; P=0.03) whilst enhancing it on a simpler tracking task (Reitan's trails A; P=0.03). In conclusion, this study suggests that IR morphine, when taken on top of a SR opioid, produces transient anterograde and retrograde memory impairments and a decrement in two-target tracking. These impairments may impact negatively on patients' everyday functioning.
CRAXDroid: Automatic Android System Testing by Selective Symbolic Execution (2014)

Mobile devices such as smart phones and tablet PCs are becoming common personal devices. The business model of a central software market is also thriving and turning into a major distribution source of software packages on those devices. However, these devices often contain personal private information and can be used to conduct operations involving data leakage and payment events like sending SMS. As a result, the quality of software on mobile devices becomes a critical issue. We aim at checking whether software off the shelf contains defective behavior or potential vulnerabilities, and aiding the official APP or third party markets to ensure their software without privacy issues. We have built a platform for android APP testing, by revising our software quality assurance and exploit generation platform, called CRAX, to apply in the Android platform. It is called the CRAXDroid that allows any inputs to be the testing sources to the APP without source code. These approaches are based on the symbolic execution technique and android emulator. By automatically exploring execution paths, we can find potential software defects. We perform several experiments on Android applications to prove the feasibility of our method.
Commemorative History of the Agricultural and Food Chemistry Division (2001)

ADVERTISEMENT RETURN TO ISSUEPREVEditorialNEXTCommemorative History of the Agricultural and Food Chemistry DivisionHarold E. PatteeView Author Information Market Quality and Handling Research, ARS, USDA, North Carolina State University, Box 7625, Raleigh, North Carolina 27695 Cite this: J. Agric. Food Chem. 2002, 50, 1, 3–6Publication Date (Web):December 26, 2001Publication History Published online26 December 2001Published inissue 1 January 2002https://pubs.acs.org/doi/10.1021/jf011519xhttps://doi.org/10.1021/jf011519xeditorialACS PublicationsCopyright © 2002 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views608Altmetric-Citations4LEARN 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 PDF (34 KB) Get e-AlertscloseSUBJECTS:Biotechnology,Flavor,Food Get e-Alerts
Serum IgG and Renal Transplantation (1973)

In 57 patients with renal allografts the prolonged administration of prednisolone >/= 1 mg/kg/day and azathioprine >/= 3 mg/kg/day caused a significant and persistent fall in serum IgG at all levels of creatinine clearance. The fall in IgG was more striking when creatinine clearance was below 25 ml/min. At lower doses of azathioprine and prednisolone serum IgG fell when the creatinine clearance was less than 35 ml/min, the degree of recovery towards normal being dependent on creatinine clearance and dosage. Post-transplant haemodialysis decreased the depression of IgG, and patients with immediately functioning grafts had minimal IgG depression. An inverse relation between IgG and IgM was observed in some patients. Severe infections and toxicity were associated with the greatest reduction in IgG; leucopenia and thrombocytopenia were not consistently reliable guides to toxicity. The deaths of four patients (7%) were associated with severe infections. Falls in IgG were not related to the rejection process. IgG measurement should be used as a guide to immunosuppression and toxicity in renal allograft patients.