gebhart/patrepeval huggingface dataset:
The Effects of Priming and Ageing on Resistance to Deterioration of Tomato Seeds (1989)

The influence of seed priming and ageing treatments on viability and rate of germination of tomato (Lycopersicon esculentum Mill.) seeds was examined under both long-term and controlled-deterioration storage conditions. Seeds of a single lot of tomato were either primed or aged to increase or decrease the rate of germination (Argerich and Bradford, 1989). They were then stored at 6% moisture content (dry weight basis) at either 4 °C or 30 °C for 1 year. Both viability and germination rate were unaffected by either storage temperature in control seeds, or by 4 °C storage in primed or aged seeds. At 30 °C, however, viability and germination rate of primed and aged seeds was markedly reduced after 6 months of storage. The temperature dependence of the germination rate and the spread of germination times within the population was also adversely affected by high temperature storage, particularly for primed seeds. Under controlled deterioration conditions (13.5% moisture content and 50 °C), the rate of loss of viability was greater for primed seed than for control or aged seeds. The relationship between seed viability and the mean germination rate, however, was not influenced by the seed treatments. These data are analysed in relation to current models of seed deterioration during storage and seed repair during priming. The results indicate that enhancement of seed germination rates by priming treatments simultaneously lowers the resistance of seeds to deterioration. Primed tomato seeds must, therefore, be considered to be vigorous seeds with a reduced storage life.
Synthesis, Structure, and Magnetic Properties of Low-Valent Triangulo Cobalt−Hydride Clusters [XCo3(μ-CO)3(PMe3)6] (1997)

Syntheses and properties of low-valent clusters [X{Co(&mgr;-CO)(PMe(3))(2)}(3)], X = none (1), H (2), and H(3) (3), are reported. All solids are isostructural as explicitly shown by single-crystal structure data. The molecular structures of C(21)H(54)Co(3)O(3)P(6) (1) and C(21)H(57)Co(3)O(3)P(6) (3) contain central Co(3) units which form perfect equilateral triangles with Co-Co distances of 2.4055(5) and 2.432(1) Å, respectively. Both compounds crystallize in trigonal space group R&thremacr;c, with Z = 6: 1, a = 10.678(1) Å, c = 52.298(11) Å; 3, a = 10.679(2) Å, c = 52.729(12) Å. Compounds 1 and 2 form a continuous range of solid solutions. Powder samples exhibit molecular paramagnetism of different extent: At 298 K the effective magnetic moments for 1-3 are &mgr;(eff)/&mgr;(B) = 1.9, 3.1, and 2.7, respectively. The magnetic behavior could be rationalized in terms of the Curie-Weiss law for a one electron system (1) and two electron system (2). The two electron approximation has been discussed as well for 3 above 6.2 K. A description of the scope of exchange coupling is presented for 1.
Three-dimenisonal monocular scene reconstruction for service-robots - an application. (2007)

This paper presents an image based three dimensional reconstruction system for service-robot applications in case of daily table scenarios. Image driven environment perception is one of the main research topics in the field of autonomous robot applications and fundamental for further action-plannings like three dimensional collision detection and prevention for grasping tasks. Perception will be done at two spatial-temporal varying positions by a micro-head camera mounted on a six-degree-of-freedom robot-arm of our mobile service-robot TASER. The epipolar geometry and fundamentalmatrix will be computed by preliminary extracted corners of both input images detected by a Harris-cornerdetector. The input images will be rectified using the fundamentalmatrix to align corresponding scanlines together on the same vertical image coordinates. Afterwards a stereo correspondence is accomplished by a fast Birchfield algorithm that provides a 2.5 dimensional depth map of the scene. Based on the depth map a three dimensional textured point-cloud is represented as interactive OpenGL scene model for further actionplanning algorithms in three dimensional space.
Molybdenum Imido Alkylidene Complexes Containing Biphen Ligands that Have Silyl Groups Attached through the 6 and 6‘ Methyl Group Carbon Atoms (2001)

Two new biphenolate ligands were prepared starting from 3,3‘-di-tert-butyl-5,5‘,6,6‘-tetramethyl-2,2‘-dimethoxy-1,1‘-biphenyl via deprotonation of the 6 and 6‘ methyl group with KO-t-Bu/n-BuLi, reaction with dichlorodimethylsilane or chlorotrimethylsilane, and deprotection with boron tribromide. Molybdenum imido alkylidene complexes were prepared by treating Mo(NAr)(CHCMe2Ph)(OTf)2(DME) with the dipotassium salt of each biphenolate. X-ray crystallographic studies of syn-Mo(NAr)(CHCMe2Ph)[(rac)-Me2SiBiphen] and syn-Mo(NAr)(CHCMe2Ph)[(rac)-TMS2Biphen] revealed a significantly different geometry of the biphenolate ligands compared to previously structurally characterized four-coordinate biphenolate molybdenum imido alkylidene complexes. The enantiopure complexes were shown to catalyze asymmetric olefin metathesis with an enantioselectivity comparable to that of Mo(NAr)(CHCMe2Ph)[(S)-Biphen].
Quantum Heterodyne Sensing of Nuclear Spins via Double Resonance (2022)

Nanoscale nuclear magnetic resonance (NMR) signals can be measured through hyperfine interaction to paramagnetic electron sensor spins. A heterodyne approach is widely used to overcome the electron spin lifetime limit in spectral resolution. It uses a series of modified Hahn echo pulse sequences applied coherently with precession signal resulting in a subsampled NMR signal. Due to challenges with applying high electron Rabi frequencies its application is limited to low fields, thus the full potential of the method is not yet exploited at high magnetic fields, beneficial for NMR. Here we present heterodyne detection utilizing a series of phase coherent electron nuclear double resonance sensing blocks which extends nanoscale NMR protocols to arbitrary magnetic fields. We demonstrate this principle on a single NV center, both with an intrinsic $^{14}$N and a weekly coupled $^{13}$C nuclear spin in the bath surrounding single NV centres. We compare our protocol to existing heterodyne protocols and discuss its prospects. This work paves the way towards high field nanoscale heterodyne NMR protocols with NV centres which is crucial for reducing sample volumes and improving chemical resolution.
Long-term effects of captopril in hypertension (1980)

Captopril was given for treatment of hypertension alone or in combination with diuretics to 32 patients for 1- to 4-mo periods. The decrement of mean blood pressure after 1 and 2 mo correlated with pretreatment plasma renin activity (PRA) and the response of blood pressure to infusion of an angiotensin II antagonist. These correlations were no longer apparent after 4 mo of treatment. When subjects with a decrement of mean blood pressure that exceeded 13 mm Hg were compared with nonresponders, responders not only had higher control PRA and higher PRA at 1 mo of treatment, but also had decreased plasma aldosterone levels, decreased urinary aldosterone excretion, and increased serum postassium levels that persisted over the 4 mo of observation. The reduction of plasma aldosterone correlated with the fall of mean blood pressure. Urinary kallikrein, catecholamines, electrolytes, and endogenous creatinine clearance did not change in response to treatment. These findings indicate that the antihypertenisve activity of captopril on long-term administration probably depends in part on the blockade of angiotensin II, but other mechanisms cannot be excluded.
The Direct Catalytic Asymmetric Cross‐Mannich Reaction: A Highly Enantioselective Route to 3‐Amino Alcohols and α‐Amino Acid Derivatives. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB (2016)

The synthesis and characterisation of the nonsymmetric liquid crystal dimer, 1-(4-cyanobiphenyl-4'-yloxy)-6-(4-cyanobiphenyl-4'-yl)hexane (CB6OCB) is reported. An enantiotropic nematic (N)-twist-bend nematic (NTB) phase transition is observed at 109 °C and a nematic-isotropic phase transition at 153 °C. The NTB phase assignment has been confirmed using polarised light microscopy, freeze fracture transmission electron microscopy (FFTEM), (2)H-NMR spectroscopy, and X-ray diffraction. The effective molecular length in both the NTB and N phases indicates a locally intercalated arrangement of the molecules, and the helicoidal pitch length in the NTB phase is estimated to be 8.9 nm. The surface anchoring properties of CB6OCB on a number of aligning layers is reported. A Landau model is applied to describe high-resolution heat capacity measurements in the vicinity of the NTB-N phase transition. Both the theory and heat capacity measurements agree with a very weak first-order phase transition. A complementary extended molecular field theory was found to be in suggestive accord with the (2)H-NMR studies of CB6OCB-d2, and those already known for CB7CB-d4. These include the reduced transition temperature, TNTBN/TNI, the order parameter of the mesogenic arms in the N phase close to the NTB-N transition, and the order parameter with respect to the helix axis which is related to the conical angle for the NTB phase.
Quantum machine learning, secure quantum computing and other applications using integrated quantum photonics (2021)

This talk presents recent experimental demonstrations that use integrated nanophotonic processors for various quantum computations such as quantum machine learning and in particular reinforcement learning, where agents interact with environments by exchanging signals via a communication channel. We show that this exchange allows boosting the learning of the agent. Another experiment underlines the feasibility of such photonic integrated processors for a homomorphically-encrypted quantum walk computation. This secure quantum computation exploits path- and polarization as degrees-of-freedom for encrypting the input and output of the photonic processor. As last demonstration I will present counter-intuitive quantum communication tasks that are linked to the Zeno effect. As outlook I will discuss technological challenges for the scale up of photonic quantum computers, and our group’s current work for addressing some of those.
Ginkgolides and Glycine Receptors: A Structure–Activity Relationship Study (2004)

Ginkgolides from the Ginkgo biloba tree are diterpenes with a cage structure consisting of six five-membered rings and a unique tBu group. They exert a variety of biological properties. In addition to being antagonists of the platelet activating factor receptor (PAFR), it has recently been shown that native ginkgolides are potent and selective antagonists of the inhibitory glycine receptor. Forty new ginkgolide derivatives have been prepared in good to high yields on milligram scales and investigated for their antagonistic properties at homomeric alpha 1 glycine receptors, thus providing the first structure-activity relationship study of ginkgolides at glycine receptors. A high-throughput screening assay showed that native ginkgolide C was the most potent ligand, and that manipulation of any of the hydroxyl groups led to loss of activity at alpha 1 glycine receptors.
Demonstration of Simultaneous Multiple ONUs Activation in WDM-PON System for 5G Fronthaul (2018)

We successfully demonstrate simultaneous activation of multiple ONUs by the random waiting time function in upstream transmission of registration request and random function of sweep start wavelength of tunable filter at ONU in WDM-PON system.
Entwined African and Asian genetic roots of medieval peoples of the Swahili coast (2023)

The urban peoples of the Swahili coast traded across eastern Africa and the Indian Ocean and were among the first practitioners of Islam among sub-Saharan people<sup>1,2</sup>. The extent to which these early interactions between Africans and non-Africans were accompanied by genetic exchange remains unknown. Here we report ancient DNA data for 80 individuals from 6 medieval and early modern (AD 1250-1800) coastal towns and an inland town after AD 1650. More than half of the DNA of many of the individuals from coastal towns originates from primarily female ancestors from Africa, with a large proportion-and occasionally more than half-of the DNA coming from Asian ancestors. The Asian ancestry includes components associated with Persia and India, with 80-90% of the Asian DNA originating from Persian men. Peoples of African and Asian origins began to mix by about AD 1000, coinciding with the large-scale adoption of Islam. Before about AD 1500, the Southwest Asian ancestry was mainly Persian-related, consistent with the narrative of the Kilwa Chronicle, the oldest history told by people of the Swahili coast<sup>3</sup>. After this time, the sources of DNA became increasingly Arabian, consistent with evidence of growing interactions with southern Arabia<sup>4</sup>. Subsequent interactions with Asian and African people further changed the ancestry of present-day people of the Swahili coast in relation to the medieval individuals whose DNA we sequenced.
A Behavioral Analysis of Eye Protection Use by Soldiers (1997)

One of the major problems faced by eye injury prevention programs in the military is the low compliance among individual soldiers with eye armor use. We use three different health behavioral models (the health belief model, the social learning theory, and the PRECEDE model) to analyze and explore the various factors involved in the use of eye armor. Some of the factors that appear to be important in affecting the behavior include environmental conditions (e.g., actual military deployment versus nondeployment activity), organizational attitude toward eye protection programs, community influence, individual knowledge and perception of eye injury, and belief in the efficacy of eye armor. An understanding of these factors can help influence the development of more effective strategies for eye injury prevention in the military.
Techniques for synthesizing binaries to an advanced register/memory structure (2005)

Recent works demonstrate several benefits of synthesizing software binaries onto FPGA hardware, including incorporating hardware design into established software tool flows with minimal impact, porting existing binaries to FPGAs, and even dynamically synthesizing software kernels to faster FPGA coprocessors. Those works showed that standard binary decompilation methods can recover enough high-level control information to result in reasonably-efficient hardware. However, recent synthesis methods for FPGAs utilize advanced memory structures, such as a "smart buffer," that require recovery of additional high-level information, specifically information about loops and arrays. We incorporate decompilation techniques into an existing binary synthesis tool flow to recover loops and arrays in order to take advantage of advanced memory structures when performing synthesis from a binary. We demonstrate through experiments on six benchmarks that our methods improve binary synthesis performance by 53%, by making effective use of smart buffers. Furthermore, we compare the binary results using smart buffers with results of synthesis directly from the original C code for the benchmarks, and show that our methods achieved almost identical performance results with only 10% area overhead.
640: Excision, Ablation, or Surveillance of Small Renal Masses: Meta-Analysis and Contemporary Literature Review (2007)

You have accessJournal of UrologyModerated Poster 18, Monday, May 21, 2007, 8:00 - 10:00 am1 Apr 2007640: Excision, Ablation, or Surveillance of Small Renal Masses: Meta-Analysis and Contemporary Literature Review David A. Kunkle, Brian L. Egleston, and Robert G. Uzzo David A. KunkleDavid A. Kunkle More articles by this author , Brian L. EglestonBrian L. Egleston More articles by this author , and Robert G. UzzoRobert G. Uzzo More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)30880-2AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "640: Excision, Ablation, or Surveillance of Small Renal Masses: Meta-Analysis and Contemporary Literature Review." The Journal of Urology, 177(4S), p. 215 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 177Issue 4SApril 2007Page: 215 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information David A. Kunkle More articles by this author Brian L. Egleston More articles by this author Robert G. Uzzo More articles by this author Expand All Advertisement PDF DownloadLoading ...
Towards development of a tele‐mentoring framework for minimally invasive surgeries (2021)

The work demonstrates a tele-mentoring framework that enables a specialist surgeon to mentor an operating surgeon during a minimally invasive surgery.
Sources of Variation in Sweat Chloride Measurements in Cystic Fibrosis (2020)

Rationale: Expanding the use of cystic fibrosis transmembrane conductance regulator (CFTR) potentiators and correctors for the treatment of cystic fibrosis (CF) requires precise and accurate biomarkers. Sweat chloride concentration provides an in vivo assessment of CFTR function, but it is unknown the degree to which CFTR mutations account for sweat chloride variation.
A 12-bit 75-MS/s pipelined ADC using open-loop residue amplification (2003)

Precision amplifiers dominate the power dissipation in most high-speed pipelined analog-to-digital converters (ADCs). We propose a digital background calibration technique as an enabling element to replace precision amplifiers by simple power-efficient open-loop stages. In the multibit first stage of a 12-bit 75-MSamples/s proof-of-concept prototype, we achieve more than 60% residue amplifier power savings over a conventional implementation. The ADC has been fabricated in a 0.35-μm double-poly quadruple-metal CMOS technology and achieves typical differential and integral nonlinearity within 0.5 LSB and 0.9 LSB, respectively. At Nyquist input frequencies, the measured signal-to-noise ratio is 67 dB and the total harmonic distortion is -74 dB. The IC consumes 290 mW at 3 V and occupies 7.9 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> .
Dynamics of antimicrobial resistance in intestinal Escherichia coli from children in community settings in South Asia and sub-Saharan Africa (2018)

The dynamics of antimicrobial resistance (AMR) in developing countries are poorly understood, especially in community settings, due to a sparsity of data on AMR prevalence and genetics. We used a combination of phenotyping, genomics and antimicrobial usage data to investigate patterns of AMR amongst atypical enteropathogenic Escherichia coli (aEPEC) strains isolated from children younger than five years old in seven developing countries (four in sub-Saharan Africa and three in South Asia) over a three-year period. We detected high rates of AMR, with 65% of isolates displaying resistance to three or more drug classes. Whole-genome sequencing revealed a diversity of known genetic mechanisms for AMR that accounted for >95% of phenotypic resistance, with comparable rates amongst aEPEC strains associated with diarrhoea or asymptomatic carriage. Genetic determinants of AMR were associated with the geographic location of isolates, not E. coli lineage, and AMR genes were frequently co-located, potentially enabling the acquisition of multi-drug resistance in a single step. Comparison of AMR with antimicrobial usage data showed that the prevalence of resistance to fluoroquinolones and third-generation cephalosporins was correlated with usage, which was higher in South Asia than in Africa. This study provides much-needed insights into the frequency and mechanisms of AMR in intestinal E. coli in children living in community settings in developing countries.
A State-Space Model for Vibration Based Prognostics (2010)

&#x0D; &#x0D; &#x0D; Operation and maintenance of offshore wind farms will be more difficult and expensive than equivalent onshore wind farms. Accessibility for routine servicing and maintenance will be a concern: there may be times when the offshore wind farm is inaccessible due to sea, wind and visibility conditions. Additionally, maintenance tasks are more expensive than onshore due to distance of the wind farm from shore, site exposure, and the need for specialized lifting equipment to install and change out major components .As a result, the requirement for remote monitoring and condition based maintenance techniques becomes more important to maintain optimum turbine availability levels. The development of a prognostics health management (PHM) capability will allow a strategy that balances risk of running the turbine against lost revenue. Prognostics would give an estimate of the remaining useful life of a component under various loads, thus avoiding component failure. We present a state-space model for predicting the remaining useful life of a component based on vibration signatures. The model dynamics are explained and analysis is performed to evaluate the nature of fault signature distribution, and an indicator of prognostic confidence is proposed. The model is then validated under real world conditions.&#x0D; &#x0D; &#x0D;
Selective Si epitaxial growth by plasma-enhanced chemical vapor deposition at very low temperature (1992)

A rf-plasma chemical vapor deposition process for selective epitaxial Si growth from SiH4 and SiF4 at a deposition temperature of 300–400 °C is described. Selective epitaxial growth is obtained as a balance of deposition precursors versus etching by F species. Also, the results indicate that a high H-surface coverage is not essential to deposit crystalline Si films by very low temperature rf-plasma chemical vapor deposition. P-doped films with a mobility of 80 cm2/V s and a carrier concentration of 3×1018 cm−3 are reported.
Covariant time-frequency representations through unitary equivalence (1996)

We propose a straightforward characterization of all quadratic time-frequency representations covariant to an important class of unitary signal transforms (namely, those having two continuous-valued parameters and an underlying group structure). Thanks to a fundamental theorem from the theory of Lie groups, we can describe these representations simply in terms of unitary transformations of the well-known Cohen's and affine classes.
Supplementary Table 6 from Evaluation and Clinical Analyses of Downstream Targets of the Akt Inhibitor GDC-0068 (2023)

&lt;p&gt;XLS file 38K, Single-biomarker tumor growth inhibition projection&lt;/p&gt;
Band filling in GaAs/AlGaAs multiquantum well lasers and its effect on the threshold current (1989)

Existing theoretical models for multi-quantum-well laser operation are not always accurate in evaluating band-filling characteristics. This, as a result of the partial omission of some significant physical processes or simplified modeling, sometimes leads to excessively optimistic prediction of threshold-current reduction in these types of lasers. An improved model which includes the effects of band nonparabolicity, revised band offsets at the heterojunction interface, nonradiative processes in the barrier and waveguide regions, and the energy-dependent spectral linewidth has been developed. It is tested satisfactorily by comparing its numerical prediction to the experimental results on cavity-length dependence of threshold current for lasers with a different number of quantum wells.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Experimental demonstration of a novel filterless frequency quadrupling technique for colorless WDM millimeter-wave up-conversion systems (2009)

This study demonstrates a novel filterless frequency quadrupling technique for optical millimeter-wave generation and WDM up-conversion. After transmission of 50-km SMFF, the sensitivity penalty of each channel is less than 1.5 dB.