gebhart/patrepeval huggingface dataset:
Segmented All-Platinum Nanowires with Controlled Morphology through Manipulation of the Local Electrolyte Distribution in Fluidic Nanochannels during Electrodeposition (2010)

Synthesis of segmented all-Pt nanowires is achieved by a template-assisted method. The combination of a suitably chosen electrolyte/template system with pulse-reverse electrodeposition allows the formation of well-defined segments linked to nanowires. Manipulation of the morphology is obtained by controlling the electrokinetic effects on the local electrolyte distribution inside the nanochannels during the nanowire growth process, allowing a deviation from the continuously cylindrical geometry given by the nanoporous template. The length of the segments can be adjusted as a function of the cathodic pulse duration. Applying constant pulses leads to segments with homogeneous shape and dimensions along most of the total wire length. X-ray diffraction demonstrates that the preferred crystallite orientation of the polycrystalline wires varies with the average segment length. The results are explained considering transitions in texture formation with increasing thickness of the electrodeposit. A mechanism of segment formation is proposed based on structural characterizations. Nanowires with controlled segmented morphology are of great technological importance, because of the possibility to precisely control their substructure as a means of tuning their electrical, thermal, and optical properties. The concept we present in this work for electrodeposited platinum and track-etched polycarbonate membranes can be applied to other selected materials as well as templates and constitutes a general method to controlled nanostructuring and synthesis of shape controlled nanostructures.
Preliminary study of dry knitted fabric electrodes for physiological monitoring (2007)

Textile electrodes (20times20 mm) were knitted from commercially available conductive yarns, including silver coated nylon, stainless steel yarn, and silver coated copper filaments. The textile electrodes were fixed into a model structure that enabled control of electrode location and skin contact pressure. The Silver coated nylon electrode was used to demonstrate the repeatability of applying the structure to the subject (without skin preparation), whilst an ECG signal obtained using a set of 3M RedDOT <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">TM</sup> electrodes placed at the same locations was used as a control for assessing the textile structures' ECG signals. A set of promising ECG signals from many of the dry textile electrodes validated the methods used for fabricating electrodes from conductive yarns by conventional textile processing, placing these on the body in a model textile structure, acquiring ECG signals from dry fabric electrodes, and provided some initial insight into useful conductive fibre and filament properties, dry electrode design, and garment characteristics.
Ambipolar Organic Field‐Effect Transistors Based on a Solution‐Processed Methanofullerene (2004)

Organic field-effect transistors (OFETs, see Figure), based on the solution- processible methanofullerene [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), have been fabricated in a bottom-contact device configuration using gold electrodes. The OFET functions either as a p- or n-channel device, depending upon the bias conditions. This is the first example of ambipolar charge transport in FETs based on pristine PCBM.
An incremental approach to reachability analysis of distributed programs (2002)

We present an incremental approach to reachability analysis of distributed programs with synchronous communication and mailbox naming. Each process in a distributed program can be modeled as a communicating finite state machine (CFSM). A set of CFSMs is organized into a hierarchy. We present an algorithm that, for a given hierarchy of a set M of CFSMs, incrementally composes and reduces subsets of CFSMs in M. This incremental reachability analysis guarantees the detection of global deadlocks. We provide an algorithm for selecting a hierarchy for a set of CFSMs and show an incremental analysis of the gas station problem.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Measurement of Casimir Force between Monolithic Silicon Microstructures (2014)

We present measurements of the Casimir force between silicon components in a near-planar geometry. We create the device from a silicon-on-insulator wafer using microfabrication. It contains a force-sensing micromechanical beam and an electrostatic comb actuator for controlling the distance. The two lithographically-defined micromechanical components are on the same silicon substrate and are automatically aligned after fabrication. Thus, we can achieve a high degree of parallelism between the two interacting surfaces. We employ a magneto-motive technique to measure the shift in the resonance frequency of the force sensing beam. Periodic Lorentz forces are exerted on the beam when an ac current is applied in a perpendicular magnetic field. As the movable electrode is pushed towards the silicon beam by the comb drives, the Casimir force increases. The force gradient is proportional to the resonance frequency shift of the beam. After the calibration using electrostatic forces and balancing the residual voltage, we measure the Casimir force gradient. Our results are in reasonable agreement with theoretical calculations, considering possible contributions of patch potentials. Apart from providing a compact platform for Casimir force measurements, this scheme also opens new opportunities for the measurement of Casimir force in complex geometries. http://meetings.aps.org/link/BAPS.2014.MAR.J44.10
Field evaluation of Allium sativum accessions for bulb yield and resistance to purple blotch (2008)

Autorías: A. Kalra, A.K. Gupta, S. Shukla, M. Chandra, R.P. Singh, R.K. Verma, G. Ram, S. Dwivedi, S.P.S. Khanuja. Localización: Plant Genetic Resources Newsletter = Bulletin de Ressources Phytogénétiques = Noticiario de Recursos Fitogenéticos. Nº. 154, 2008. Artículo de Revista en Dialnet.
Evolution of the Electrode / Electrolyte Interface Along Electrochemical Cycling of LiMn1/2Ni1/2O2 (2010)

Abstract not Available.
Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. IX. Synthese von (3R)‐Hydroxyechinenon, (3R, 3′R)‐ und (3R, 3′S)‐Adonixanthin, (3R)‐Adonirubin, deren optischen Antipoden und verwandten Verbindungen (1981)

Synthesis of Optically Active Natural Carotenoids and Structurally Related Compounds. IX. Synthesis of (3 R )‐Hydroxyechinenone, (3 R , 3′ R )‐ and (3 R , 3′ S )‐Adonixanthin, (3 R )‐Adonirubin, Their Optical Antipodes and Related Compounds The synthesis of racemic and optically active hydroxyechinenone ( 12–14 ), adonixanthin ( 16–19 ), adonirubin ( 22–24 ), meso ‐astaxanthin ( 26 ) and their corresponding diosphenols 15, 20, 21, 25, 27, 28 , and 29 ) by Wittig reaction is reported, starting from suitable C 15 ‐phosphonium salts and C 10 ‐aldehydes.
Effects of sulfur substitution in amorphous InGaZnO<sub>4</sub>: optical properties and first-principles calculations (2015)

Amorphous InGaZnO4-xSx thin films were fabricated using a polycrystalline InGaZnO4 target by pulsed laser deposition in an H2S gas flow. The optical band gap first decreased from 3.05 to 1.65 eV as x increased from 0 to 1.5, and then increased to 2.6 eV at larger x, showing a bandgap bowing behavior. All the sulfur-containing films have high resistance beyond our measurement limit. Film density of the a-InGaZnS4 film was decreased by ~40% from that of a-InGaZnO4. Density functional theory calculations were performed to explain these results.
Reversible Intraoperative Neurophysiologic Monitoring Changes Associated with Surgical Retraction (P3.010) (2014)

OBJECTIVE: The critical role of multimodality intraoperative neurophysiologic monitoring (IONM), and specifically, transcranial motor evoked potentials (tcMEPs) in helping to prevent retraction-related injuries is highlighted. BACKGROUND: Inadvertent retraction-related injuries are a known risk of intracranial surgical procedures, with an incidence estimated to be 5-10%. Retraction in the vicinity of critical neural tissue and vascular structures may result in compression, stretch, or steno-occlusive ischemic injuries that are unexpected, and may not be recognized until the postoperative period. DESIGN/METHODS: We present a series of ten intracranial surgical cases where IONM changes occurred in association with retractor placement and positioning, procedures that include resection of tumor (4) and vascular malformations (2), and aneurysm clipping (4). Multimodality IONM monitoring was employed in all cases, including transcranial motor evoked potentials (tcMEPs), somatosensory evoked potentials (SSEPs), and electroencephalography (EEG). RESULTS: In the four aneurysm cases, critical IONM changes occurred following retractor placement, but prior to any planned intervention. In all remaining cases changes occurred during the interventional period that also coincided with the placement or positioning of retractors. Most commonly transcranial motor evoked potentials were primarily affected. In all cases prompt identification of these IONM changes led to rapid surgical assessment and eventual removal or repositioning of retractors, which resolved neurophysiologic changes and correlated with no new sustained postoperative deficits. CONCLUSIONS: This case series highlights the importance of IONM in the early identification of potentially reversible changes that may correlate with impending retraction-related injuries. In particular, the pattern of IONM changes represented in the majority of these cases emphasizes the critical and distinct role of tcMEPs in identifying early signs of evolving cerebral injury. This further illustrates the utility and necessity of multimodality intraoperative neurophysiologic monitoring in a diversity of intracranial surgical cases for the entire duration of the procedure, including presumably non-interventional periods.
Science-based intensive agriculture: Sustainability, food security, and the role of technology (2019)

• Sustainable agriculture is complex and includes multiple interdependent goals. • Sound science and innovation are the keys to sustainable agriculture, and are already delivering results. • Greater investment is needed in the basics of agronomy, biotechnology, and plant breeding to ensure that farmers and consumers everywhere benefit from science and technology. • Farmers must receive support for implementing sustainability measures, especially in light of the downward trend of commodity prices.
Acoustic resonances in cylinder bundles oscillating in a compressibile fluid (1984)

This paper deals with an analytical study on acoustic resonances of elastic oscillations of a group of parallel, circular, thin cylinders in an unbounded volume of barotropic, compressible, inviscid fluid. The perturbed motion of the fluid is assumed due entirely to the flexural oscillations of the cylinders. The motion of the fluid disturbances is first formulated in a three-dimensional wave form and then casted into a two-dimensional Helmholtz equation for the harmonic motion in time and in axial space. The acoustic motion in the fluid and the elastic motion in the cylinders are solved simultaneously. Acoustic resonances were approximately determined from the secular (eigenvalue) equation by the method of successive iteration with the use of digital computers for a given set of the fluid properties and the cylinders' geometry and properties. Effects of the flexural wavenumber and the configuration of and the spacing between the cylinders on the acoustic resonances were thoroughly investigated.
Sensing with Nafion Coated Carbon Nanotube Field‐Effect Transistors (2004)

Abstract Sequential CVD and CMOS processes were used to make a FET that has single walled carbon nanotubes to serve as the conducting source to drain channel. This structure can be decorated to provide gas and liquid responses and herein is evaluated as a humdity sensor. The Na + , K + , and Ca 2+ ion‐exchanged Nafion polymer acts as the chemically sensitive layer in this electrochemical sensor. The effect of gate voltage on the charge‐sensitive NT structure was found to be RH dependent over the range of 12–93% RH with msec response time.
Focused packer testing using geophysical tomography and CCTV in a fissured aquifer (1999)

Abstract Double packer testing is a commonly used technique in hydrogeology for assessing vertical spatial variations of permeability in a borehole. In fractured rock systems, spatially continuous fractures are typically major transmissive features that control groundwater flow and solute transport. Efficient, cost-effective packer testing of fractured rock aquifers can be conducted by focusing the packer test on hydraulically conductive zones, defined using borehole geophysical techniques. The combined use of cross-borehole electrical imaging and borehole television (CCTV) as methods for focusing the packer test was applied to a limestone aquifer. CCTV identified features exposed in the borehole whereas Electrical Resistivity Tomography (ERT) revealed their spatial continuity and probable hydraulic significance. Whole borehole pumping tests were conducted to provide a check on the effectiveness of these methods as tools for guiding the packer test. Results from a set of boreholes in a fissured aquifer revealed the transmissivity estimates obtained from the whole borehole pumping test to be close to the sum of transmissivities obtained from focused packer testing of features identified using CCTV and ERT. The hydraulic properties of the aquifer were hence defined whilst avoiding intensive packer testing of the entire length of the boreholes.
Oxygen tension regulates H 2 S and NO bioavailability in reciprocal manner (885.3) (2014)

Nitric oxide and hydrogen sulfide modulate several physiological and cellular functions including vasodilation, cell proliferation and redox cell signaling. Production and bioavailability of either molecule may be influenced by oxygen tension; however, the relationship between H2S and NO bioavailability during hypoxia remains poorly understood. In this study, we examined plasma free H2S and nitrite levels in healthy volunteers exposed to high altitude. Plasma free H2S levels were significantly greater at sea level compared to high altitude (5260 meters) at 1 or 16 days; whereas, plasma nitrite levels were significantly higher at high altitude compared to sea level. After spending 7 or 21 days at low altitude, volunteers were tested again at 5260 m. On reascent, plasma free H2S levels were increased compared to initial high altitude exposure. Conversely, plasma nitrite levels were lower than high altitude exposure on reascent indicating reciprocal regulation between the gasotransmitters. Calculation of plasma free H2S to nitrite ratios revealed that high altitude acclimatization decreases the ratio of plasma free H2S to nitrite, and that on reascent H2S to nitrite ratios return to low altitude levels. In vitro cellular hypoxia studies using HUVEC revealed significant decreases in acid labile sulfide while increasing protein bound biochemical forms of sulfide. Interestingly, in vitro hypoxic challenge similarly decreased free H2S to nitrite ratios in HUVEC similar to high altitude exposure. These data demonstrate a unique reciprocal relationship between H2S and NO bioavailability during hypoxia.
LIM kinase activity is required for microtubule organising centre positioning in mouse oocyte meiosis (2016)

LIM kinase 1 (LIMK1) activity is essential for cell migration and cell cycle progression. Little is known about LIMK1 expression and function in mammalian oocytes. In the present study we assessed LIMK1 protein expression, subcellular distribution and function during mouse oocyte meiosis. Western blot analysis revealed high and stable expression of LIMK1 from the germinal vesicle (GV) to MII stage. In contrast, activated LIMK1 (i.e. LIMK1 phosphorylated at threonine 508 (pLIMK1<sup>Thr508</sup>)) was only detected after GV breakdown, with levels increasing gradually to peak at MI and MII. Immunofluorescence showed pLIMK1<sup>Thr508</sup> was colocalised with the microtubule organising centre (MTOC) components pericentrin and γ-tubulin at the spindle poles. A direct interaction between γ-tubulin and pLIMK1<sup>Thr508</sup> was confirmed by co-immunoprecipitation. LIMK inhibition with 1μM BMS3 damaged MTOC protein localisation to spindle poles, undermined the formation and positioning of functional MTOC and thus disrupted spindle formation and chromosome alignment. These effects were phenocopied by microinjection of LIMK1 antibody into mouse oocytes. In summary, the data demonstrate that LIMK activity is essential for MTOC organisation and distribution and so bipolar spindle formation and maintenance in mouse oocytes.
Fractionation of Hairless Canary Seed (Phalaris canariensis) into Starch, Protein, and Oil (2010)

Canary seed is an important specialty crop in Canada. The current market for this true cereal (i.e., belonging to the family Poaceae as wheat) is limited to feed for caged birds. However, canary seed holds a promise for many food and industrial applications based on its composition. Three wet milling procedures based on ethanol (E), water (W), and alkaline (A) extractions used in different order were investigated to determine extraction efficiency and purity of starch, protein, oil, and fiber separated from hairless canary seed, a variety developed for human consumption. Highest extraction efficiencies were obtained when canary seed was defatted with ethanol and then extracted with alkali and water (EAW process). Using this process, approximately 92% pure starch, 75% pure protein, and oil were recovered from canary seed groats. The highest purity of protein, however, was obtained when canary seed was fractionated by the EWA process, that is, defatted and then extracted with water followed by alkali. Fiber component separated prior to alkaline extraction contained high amounts of nonfiber components as indicated by its yield. The EAW extraction process seems to be more promising in canary seed fractionation based on recovery and purity of components.
Conflict Resolution, Reallocation and Management of Lake Texoma Resources (1990)

From its inception, Lake Texoma has created conflicts among users of its natural resources, including hydropower, water supply, flood control, and recreational users. Many attempts have been made by the Corps of Engineers to ameliorate conflict and to find acceptable solutions. Legislative acts occasionally have been required to resolve conflicts. The Red River Compact Commission and the Lake Texoma Advisory Committee are effective in resolving some of the controversies arising from allocation of resources at Lake Texoma. Other disagreements may arise in the future.
Activation of PDGF-CC by tissue plasminogen activator impairs blood-brain barrier integrity during ischemic stroke (2008)

Thrombolytic treatment of ischemic stroke with tissue plasminogen activator (tPA) is markedly limited owing to concerns about hemorrhagic complications and the requirement that tPA be administered within 3 h of symptoms. Here we report that tPA activation of latent platelet-derived growth factor-CC (PDGF-CC) may explain these limitations. Intraventricular injection of tPA or active PDGF-CC, in the absence of ischemia, leads to significant increases in cerebrovascular permeability. In contrast, co-injection of neutralizing antibodies to PDGF-CC with tPA blocks this increased permeability, indicating that PDGF-CC is a downstream substrate of tPA within the neurovascular unit. These effects are mediated through activation of PDGF-alpha receptors (PDGFR-alpha) on perivascular astrocytes, and treatment of mice with the PDGFR-alpha antagonist imatinib after ischemic stroke reduces both cerebrovascular permeability and hemorrhagic complications associated with late administration of thrombolytic tPA. These data demonstrate that PDGF signaling regulates blood-brain barrier permeability and suggest potential new strategies for stroke treatment.
The combined effects of low pressure NH/sub 3/-annealing and H/sub 2/ plasma hydrogenation on polysilicon thin-film transistors (1994)

The low pressure NH/sub 3/-annealing and the H/sub 2/ plasma hydrogenation were jointly used to improve the characteristics of polysilicon thin-film transistors (TFT's). It was found that the TFT's after applying the above treatments achieved better subthreshold swings, threshold voltages, field effect mobilities, off currents, and reliability. It is believed that the improvement was due to the gate oxynitride formation and the H/sub 2/-plasma had a better passivation effect on the oxynitride.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Sorption Kinetics on Open Carbon Nanohorn Aggregates: The Effect of Molecular Diameter (2016)

We present the results of a study of the kinetics of adsorption on aggregates of open carbon nanohorns using argon and CF₄ sorbates. We measured the equilibration times for each value of the sorbent loading along eight adsorption isotherms (four isotherms for each sorbate species). We found that: the equilibration times decrease as the sorbent loading (and the equilibrium pressure of the coexisting gas) increases, for a given temperature; and, that, for a given value of the sorbent loading, the equilibration times decrease with increasing temperature. When considering the effect of scaling of the temperatures by the respective critical temperatures we found that, at the same scaled temperature and at comparable loadings, the equilibration times for CF₄ were longer than those for argon. We discuss a possible explanation for this result.
Directional space-time modulation: A novel approach for secured wireless communication (2012)

The paper proposes a novel approach for securing the wireless communication by designing the signal in a way that makes its modulation format direction-dependent. The idea is to exploit the multi antennas at the transmitter to superimpose a space-time varying interfering component (at the modulation rate) while staying orthogonal to the desired receiver's direction. Unlike conventional interference or artificial noise injection techniques, the proposed approach impedes an arbitrary eavesdropper from blindly separating the information data symbols from the injected interference due to its space-time varying nature.
Rhodium(I)‐Catalyzed [5+2], [6+2], and [5+2+1] Cycloadditions: New Reactions for Organic Synthesis (2005)

This chapter contains sections titled: Introduction Cycloaddition Approaches to Seven-Membered Rings Design of a Transition Metal-Catalyzed [5+2] Cycloaddition of Vinylcyclopropanes and π-Systems Intramolecular [5+2] Cycloadditions of VCPs Reactions with Alkynes Reactions With Alkenes Reactions with Allenes Other Catalyst Systems Stereochemistry and Regiochemistry of the Intramolecular [5+2] Cycloaddition Applications to Natural Product Synthesis Intermolecular [5+2] Cycloadditions of VCPs and Alkynes Oxygen-Substituted VCPs Serial [5+2]/[4+2] Cycloaddition Reactions Reactions of Simple, Alkyl-Substituted VCPs Hetero-[5+2] Cycloadditions of Cyclopropylimines Cycloaddition Approaches for Eight-Membered Ring Synthesis Design and Development of [6+2] Cycloadditions of Vinylcyclobutanones Design and Development of Multi-component [5+2+1] Cycloadditions of VCPs, Alkynes, and CO Conclusion References
348 An Integrated Solution to Predict the Stimulation Parameters After STN DBS for PD (2018)

Krishna, Vibhor MD; Sammartino, Francesco MD; Rabbani, Qinwan; Changizi, Barbara K MD; Agrawal, Punit; Deogaonkar, Milind MD; Knopp, Michael V MD, PhD; Young, Nicole PhD; Rezai, Ali R MD Author Information