gebhart/patrepeval huggingface dataset:
A simulation model for the density of states and for incomplete ionization in crystalline silicon. I. Establishing the model in Si:P (2006)

A parametrization of the density of states (DOS) near the band edge of phosphorus-doped crystalline silicon is derived from photoluminescence and conductance measurements, using a recently developed theory of band gap narrowing. It is shown that the dopant band only “touches” the conduction band at the Mott (metal-insulator) transition and that it merges with the conduction band at considerably higher dopant densities. This resolves well-known contradictions between conclusions drawn from various measurement techniques. With the proposed DOS, incomplete ionization of phosphorus dopants is calculated and compared with measurements in the temperature range from 300to30K. We conclude that (a) up to 25% of dopants are nonionized at room temperature near the Mott transition and (b) there exists no significant amount of incomplete ionization at dopant densities far above the Mott transition. In a forthcoming part II of this paper, equations of incomplete ionization will be derived that are suitable for implementation in device simulators.
Hesperidin associated with continuous and interval swimming improved biochemical and oxidative biomarkers in rats (2013)

Hesperidin supplementation per se, or in combination with swimming exercise protocols, improved the biochemical profile and antioxidant biomarkers evidencing that the use of flavanones may enhance the health benefits promoted by exercise.
Disease-modifying drugs for progressive rheumatoid arthritis. (1980)

In patients with rheumatoid arthritis who do not respond to therapy with salicylates or nonsteroidal anti-inflammatory agents, stronger and potentially more toxic drugs are then considered. At the present time in the United States, this generally means a trial of hydroxychloroquine, gold, penicillamine, azathioprine, or cyclophosphamide. Each of these drugs is discussed with regard to pharmacology and possible modes of action, pertinent clinical studies, and toxicity.
Effect of Various Levels of Nitrogen and Phosphorus on Growth and Yield of Chilli (Capsicum Annuum L.) (1988)

Response of chilli variety Pant C-l to different levels of nitrogen (0, 60,90 and 120 kg/ha) and phosphorus (0, 30, 60 kg P2O5/ha) was studied on a sandy loam soil, during summer season of 1983 at the Horticultural Research Centre, Patharchatta, Pantnagar. The mean plant height, number of branches, fresh and dry weights of root and shoot, number and weight of fruits per plant, fruit length and diameter. flesh content, yield of red ripe fruits and nitrogen and phosphorus content in fruit and plants, all were significantly higer in 120 kg N/ha. The application of phosphorus pid not show significant effect on vegetative growth characters but number and weight of fruits per plant, total yield and N and P accumulation in plant were affected significantly. The combination of N120P60 resulted in maximum yield and also proved most economic,
Spatially Distributed Dominant Excitation Frequencies Reveal Hidden Organization in Atrial Fibrillation in the Langendorff‐Perfused Sheep Heart (2000)

In this model, AF is characterized by multiple domains with distinct DFs on the atrial epicardium. The decrease in domain area with increased rate suggests that AF results from high-frequency impulses that undergo spectral transformations. The LA is generally faster and more organized than the RA, suggesting that the sources for the impulses are localized to the LA.
CREAM-MAC: An efficient Cognitive Radio-enAbled Multi-Channel MAC protocol for wireless networks (2008)

Cognitive radio technology has emerged as the novel and effective approach to improve the utilization of precious radio spectrum. Employing the cognitive radio technology, secondary (unlicensed) users can opportunistically utilize the unused licensed spectrum in a way that constrains the level of interference to the primary (licensed) users. However, there are many new challenges associated with cognitive radio based wireless networks, such as the multi-channel hidden terminal problem and the fact that the time-varying channel availability is different for different secondary users, in the medium access control (MAC) layer. To overcome these challenges, we propose an efficient Cognitive Radio-EnAbled Multi-channel MAC (CREAM-MAC) protocol, which integrates the spectrum sensing at physical layer and packet scheduling at MAC layer, over the wireless networks. Under the proposed CREAM-MAC protocol, each secondary user is equipped with a cognitive radio-enabled transceiver and multiple channel sensors. The proposed CREAM-MAC enables the secondary users to best utilize the unused frequency spectrum while avoiding the collisions among secondary users and between secondary users and primary users. In addition, we develop the analytical models to quantitatively analyze our proposed CREAM-MAC protocol in the saturated network case. We also conduct simulation experiments to validate our developed analytical models.
Short Notices (1962)

Journal Article Short Notices Get access DENYS HAY DENYS HAY University of Edinburgh Search for other works by this author on: Oxford Academic Google Scholar The English Historical Review, Volume LXXVII, Issue CCCIII, April 1962, Pages 355–356, https://doi.org/10.1093/ehr/LXXVII.CCCIII.355 Published: 01 April 1962
miR393 and Secondary siRNAs Regulate Expression of the <i>TIR1</i>/<i>AFB2</i> Auxin Receptor Clade and Auxin-Related Development of Arabidopsis Leaves   (2011)

The phytohormone auxin is a key regulator of plant growth and development that exerts its functions through F-box receptors. Arabidopsis (Arabidopsis thaliana) has four partially redundant of these receptors that comprise the TRANSPORT INHIBITOR RESPONSE1/AUXIN SIGNALING F-BOX1 auxin receptor (TAAR) clade. Recent studies have shown that the microRNA miR393 regulates the expression of different sets of TAAR genes following pathogen infection or nitrate treatment. Here we report that miR393 helps regulate auxin-related development of leaves. We found that AtMIR393B is the predominant source for miR393 in all aerial organs and that miR393 down-regulates all four TAAR genes by guiding the cleavage of their mRNAs. A mutant unable to produce miR393 shows developmental abnormalities of leaves and cotyledons reminiscent of enhanced auxin perception by TAARs. Interestingly, miR393 initiates the biogenesis of secondary siRNAs from the transcripts of at least two of the four TAAR genes. Our results indicate that these siRNAs, which we call siTAARs, help regulate the expression of TAAR genes as well as several unrelated genes by guiding the cleavage of their mRNAs. Thus, miR393 and possibly siTAARs regulate auxin perception and certain auxin-related aspects of leaf development.
Excitation and measurement of flexural waves in arterial vessels (2004)

Pulse wave velocity in an artery is a very important indicator of the stiffness and disease of the artery. The pulse wave velocity is directly related to the Young's modulus in the circumferential direction of the artery by the well known Moens-Korteweg equation. Pulse wave velocity in an artery is measured with the standard pulse delay technique. However, the precise timing of the pressure wave is difficult due to the presence of reflected waves. In this paper we propose to excite flexural waves in an artery by low frequency localized radiation force ultrasound. These waves can be measured very accurately over a short distance. Experimental studies were carried out on a pig carotid artery in gelatin. The flexural wave speed was measured by the phase change at a known distance for a given frequency. Velocity dispersion was found for the flexural wave. This is very important because the Moens-Kertowag equation does not consider dispersion. Viscoelastic properties of the artery were also measured and discussed. The present technique offers a new tool for measuring wave speed in arterial vessels.
Ceramic Compositions Having Negative Linear Thermal Expansion (1951)

Compositions having negative linear thermal expansions ranging from 0 to –0.38% have been obtained in two areas of the system lithia‐alumina‐silica. Petrographic and X‐ray examinations indicate the presence of three principal crystalline phases, each of which is a solid solution: β ‐eucryptite, β ‐spodumene, and an unidentified quartzlike phase. All compositions were prepared from lithium carbonate, clay, flint, and alumina. Some compositions have been prepared which, for all practical purposes, exhibit no change in length when heated from room temperature to as high as 600°C. Some of these compositions have excellent thermal endurance, withstanding repeated quenchings from a temperature of 1100°C. into water at room temperature.
Multiple roles of glutathione in the central nervous system. (1997)

Glutathione is a storage form of cysteine and protects against reactive oxygen species and potentially toxic xenobiotics in the central nervous system. Marked reductions in intracellular or intramitochondrial glutathione are associated with cell death. Enzymes involved in glutathione metabolism are very active in the choroid plexus, and astrocytes maintain a high concentration of glutathione. Astrocytes probably play an important role in regulating cerebral sulfur/glutathione metabolism and in protecting the brain against noxious chemicals. Oxidative stress contributes to age-related neurodegenerative diseases. Patients with inborn errors of glutathione metabolism often exhibit progressive neurological problems. Therefore, increasing brain glutathione levels may have therapeutic benefits.
Numerical simulation of electrospray in the cone-jet mode (2012)

We present a robust and computationally efficient numerical scheme for simulating steady electrohydrodynamic atomization processes (electrospray). The main simplification assumed in this scheme is that all the free electrical charges are distributed over the interface. A comparison of the results with those calculated with a volume-of-fluid method showed that the numerical scheme presented here accurately describes the flow pattern within the entire liquid domain. Experiments were performed to partially validate the numerical predictions. The simulations reproduced accurately the experimental shape of the liquid cone jet, providing correct values of the emitted electric current even for configurations very close to the cone-jet stability limit.
Evolutionary algorithms for solving the automatic cell planning problem: a survey (2010)

Automatic cell planning (ACP) is an optimization problem from the mobile telecommunications domain that addresses finding the location of the network antennae as well as their parameter settings in order to satisfy several cellular operator requirements. Due to its NP-hard complexity, evolutionary techniques have become popular for solving ACP instances. This article presents a survey of evolutionary algorithms (EAs) engineered for addressing ACP problems, analysing both the features of the considered ACP problem and the main aspects of the EAs used to solve them. The survey provides an up-to-date overview that is not limited to any particular kind of evolutionary approach, and comprises advanced algorithmic enhancements like hybridization and parallelization. The article ends by addressing some important issues and open questions that can be the subject of future research.
Improvements in the performance of microstrip antennas on finite ground planes through ground plane edge serrations (2002)

This paper explores how edge serrations on a truncated ground plane affect the performance of a microstrip antenna. The investigation includes both simulations and measurements of a range of serration dimensions. Improvements in performance through ground plane edge serration include lower cross-polarization level, increased beam width, and slight impedance tuning compared to a microstrip antenna on a simple finite ground plane.
Boron Sites in Borosilicate Zeolites at Various Stages of Hydration Studied by Solid State NMR Spectroscopy (2004)

The local structures of framework boron atoms in borosilicate zeolites B-β, B-SSZ-33 and B-SSZ-42 have been studied in the course of hydration/dehydration by employing solid-state NMR methods. In particular, characterization of trigonal boron sites has been studied in great detail. ^(11)B MAS NMR spectra showed that boron trigonally coordinated to the framework (B(OSi)_3, denoted as B[3]) can be readily transformed to a defective trigonal boron site (B(OSi)_2(OH), denoted as B[3]-I) as a result of hydration. The presence of B[3]-I sites was proven by utilizing a number of different NMR methods including ^(11)B MAS NMR at two different fields (11.7 and 19.6 T), ^(11)B MQMAS, ^(11)B CPMAS, and ^(11)B 2D HETCOR experiments. The B[3]-I species can be converted into B[3] upon dehydroxylation, but its presence can also be sustained even after very high-temperature treatment (at least up to 500 °C). The formation of deboronated species, B(OH)_3, in distorted form was detected even under a mild hydration treatment. HETCOR NMR revealed that hydroxyl protons with chemical shifts at 2.4 and 3.3 ppm in ^1H NMR are correlated with B[3] and B[3]-I sites, respectively. The presence of a new hydroxyl proton at 3.8 ppm in ^1H NMR that showed selective correlation with B[3]-I in HETCOR NMR was also identified.
148 LIPID/WATER RATIO OK BONE MARROW MEASURED BY PHASE-ENCODED PROTON NMR SPECTROSCOPY (1986)

Richards, T. R.; Davis, C. A.; Barker, B. R.; Beinert, W. D.; Genant, H. K. Author Information
Vehicle navigator using a mixture particle filter for inertial sensors/odometer/map data/GPS integration (2012)

The market for vehicular navigators boomed over the last few years. These navigators rely mainly on satellite based navigation systems such as the Global Positioning System (GPS) to assist drivers. Due to interruption or degradation in such systems in dense urban scenarios, they have to be augmented with other systems to achieve continuous and accurate vehicular navigation. GPS is integrated with low-cost micro-electro mechanical system (MEMS)-based inertial sensors. However, these sensors provide inadequate performance in degraded GPS environments because of their complex error characteristics that often lead to large position drift errors. This paper proposes a continuous and accurate solution integrating low-cost MEMS-based inertial sensors, the vehicle odometer, GPS, and map data from road networks. Despite the traditional inadequate performance of MEMS-based sensors in this problem, the performance is enhanced through: (i) a special combination of inertial sensors and odometer that has better performance for land vehicles than traditional solutions; (ii) The use of map information from road networks to constrain the positioning solution; (iii) The use of an advanced particle filtering (PF) technique to perform the integration, which work with nonlinear models and better modeling of inertial sensor errors, in addition to better integration with the map data. The performance of the proposed positioning system has been verified extensively on real road tests in downtown trajectories with degraded or totally denied GPS for long durations.
Variable frequency closed-loop discrete pulse modulation for induction motor control (1990)

A variable-frequency closed-loop discrete pulse modulation system for variable-speed induction motor control has been implemented. An important component of this system is the decision tree IPWM (integral pulse width modulation) controller. The decision tree controller was designed to mimic a nonlinear optimization program by its construction from a training set composed of solutions to the optimization problem. The performance of this type of system was tested using a program which simulates the operation of a three-phase induction motor. Simulation results are presented and discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Mechanical Measurement of Fatness and Carcass Value on Live Hogs (1952)

A probing technique for measuring fat covering on live hogs is described. The method is very quick and easy to apply and causes little discomfort to the pigs. The correlation between the average of four backfat measurements taken on carcasses and on live hogs was .81. Measurements made on 96 live hogs were slightly more accurate as indicators of leanness and percentage primal cuts than were carcass measurements of backfat thickness. The most accurate locations were just behind the shoulder and at the middle of the loin about 1½ inches off the midline of the body.
A 300nW near-threshold 187.5&#x2013;500 kHz programmable clock generator for ultra low power SoCs (2015)

We present a 187kHz to 500kHz ADPLL-based clock generator that consumes 300nW from a 0.5V VDD, has a jitter <;0.1% and was implemented in a 0.13μm CMOS process. The entire ADPLL was implemented using standard digital design flows and automatic place and route (APR). Moreover, an integrated crystal oscillator (31.25 kHz) is included and serves as the reference for the PLL. Therefore, this is a complete clocking solution for ultra-low power near-threshold SoCs.
Electron Transfer Kinetics of Aquated Fe + 3 /  + 2, Eu + 3 /  + 2, and  V  + 3 /  + 2 at Carbon Electrodes: Inner Sphere Catalysis by Surface Oxides (1993)

The electron‐transfer kinetics for three aquated metal ions with low self‐exchange rates were examined on well‐characterized carbon surfaces. All three ions exhibited slow kinetics on clean fractured glassy carbon (GC) and on the basal plane of highly ordered pyrolytic graphite (HOPG). The reactions appeared to be outer sphere and had rates approximately consistent with those predicted from the self‐exchange rates. Electrochemical oxidation of either GC or HOPG greatly increased the electron‐transfer rate constant to values significantly greater than predicted for outer‐sphere reactions. The increase was greatest for and was eliminated if the surface was silanized. Surface oxides provide sites for inner‐sphere catalysis of the aquated ions at carbon, perhaps involving a surface oxide structure similar to the common ligand acetoacetonate.
The isolation and properties of δ-tocotrienol from <i>Hevea latex</i> (1966)

1. delta-Tocotrienol (8-methyltocotrienol) was isolated from the latex of Hevea brasiliensis. This new member of the tocopherol family is a pale-yellow oil at room temperature. 2. The properties of delta-tocotrienol are very similar to those of delta-tocopherol and the small differences can be explained by the change in side chain. 3. The ultraviolet and infrared spectra of delta-tocotrienol were determined and a conversion factor for use with the Emmerie-Engel reaction was worked out. Details are given for the chromatography of delta-tocotrienol on thin layers (adsorption and partition) and reversed-phase paper, and the nitroso derivatives were formed. 4. An ethyl carbonate ester of delta-tocotrienol was prepared and compared with a similar ester of delta-tocopherol. 5. Hydroxymethylation of delta-tocotrienol followed by reduction gave beta-tocotrienol as a major product.
TNF-alpha inhibitors in dermatology. (2007)

To date, the US FDA has approved three tumor necrosis factor (TNF)-a inhibitors for use in dermatology. Etanercept (Enbrel, Amgen-Wyeth), a fully human fusion protein of TNF receptor II bound to the Fc component of human IgG1, is approved for use in psoriasis (2004) and psoriatic arthritis (2002). Infliximab (Remicade, Centocor) is a chimeric monoclonal antibody that is approved for use in psoriasis (2006) and psoriatic arthritis (2005), and adalimumab (Humira, Abbott Laboratories), a fully human monoclonal antibody, is approved for use in psoriatic arthritis (2005). While data regarding the efficacy and safety of these therapies is abundant, it proves nearly impossible to objectively compare and contrast agents as there are no head-to-head trials. Clinical experience and post-marketing reporting has allowed dermatologists to identify the relative strengths and limitations of each agent. The well-founded enthusiasm for these agents, because of their excellent initial efficacy and safety profile, is reasonably tempered by concerns about declining efficacy over time, the risk of infection, lymphoma and demyelinating disorders, and cost. The distinct and targeted mechanism of action of the TNF inhibitors allows dermatologists to customize therapy to match the individual needs and characteristics of patients who are candidates for systemic or phototherapy.
Mitochondria and Tumor Progression in Ulcerative Colitis (2013)

Mitochondrial loss precedes the development of dysplasia, and it could be used to detect and potentially predict cancer. Cancer cells restore mitochondria, suggesting that mitochondria are needed for further proliferation. This bimodal pattern might be driven by transcriptional regulation of mitochondrial biogenesis by PGC1α.
[Studies on anti-endotoxin activity of F022 from Radix Isatidis]. (2002)

The anti-endotoxin effect of F022 may inhibit LPS binding to its receptor, and it may be a LPS receptor antagonist.
Reversal of Delayed Paraplegia with Cerebrospinal Fluid Drainage after Thoracoabdominal Aneurysm Repair (2002)

To the Editor: Delayed neurologic deficits are an uncommon, yet devastating complication of thoracoabdominal aortic aneurysm repair occurring in up to 3% of patients (1). Although the mechanisms of delayed spinal cord ischemia remain ill defined, factors known to increase the risk of spinal cord injury include the aortic cross-clamp time, aneurysm extent, aneurysm rupture, and associated acute aortic dissection. Although multiple studies have suggested a role for intraoperative cerebrospinal fluid (CSF) drainage in preventing acute spinal cord injury, comparatively little information exists regarding the usefulness of postoperative CSF drainage for treatment of delayed neurological deficits occurring after thoracoabdominal aneurysm repair (2–4). We report a case of complete reversal of delayed neurologic deficits with postoperative CSF drainage. A 71-yr-old man experienced delayed onset lower extremity paraplegia 48 h after uncomplicated Type I thoracoabdominal aneurysm repair. Insertion of an epidural catheter into the lumbar thecal space revealed increased CSF pressures (>10 mm Hg). Prompt CSF decompression, in association with IV steroid administration, completely reversed the neurologic deficits within 24 h of onset. This case suggests that postoperative CSF drainage may be a useful therapeutic option for the management of delayed onset neurological deficits inpatients with increased CSF pressures after thoracoabdominal aneurysm repair. Byron Tsusaki, DO Alina Grigore, MD Denton A. Cooley, MD Charles D. Collard, MD
The Disappearing Anode Myth (1998)

Abstract The goal of this paper was to simply demystify the disappearing anode problem. Three key concepts for anode control were presented. First, anode / cathode area ratio, second, magnetron ejection angle and, lastly, the concept of aspect ratio / acceptance angle were introduced. Examples of the application of these principles were demonstrated. Finally, tradeoffs associated with dual magnetron sputtering and DC pulsed deposition were discussed.
Effects of ageing on touch (2006)

A decline in the main sensory modalities is well reported to occur with ageing. This article outlines the normal pathways involved in touch sensation and includes a review of available evidence relating to the study of ageing and touch. The authors try to use what is known about the neuroanatomy and neurophysiology of ageing to explain the impact on some broad functional deficits seen in the elderly population. The importance of understanding how the normal ageing process affects touch sensation is emphasised.