gebhart/patrepeval huggingface dataset:
A 20MHz Low Dropout Controlled Current Sensor for Constant On-Time Based Envelop Tacking Supply Modulator for Radio Frequency Power Amplifier (2018)

This paper presents a LDO-controlled current sensor for accelerating constant on-time (COT) switching regulators (SWRs) for high efficiency envelope tracking power modulators (ETSMs) for RF power amplifiers (RF PAs). The proposed LDO-controlled current sensor controls the feedback loop of the SWR, rather than the traditional current sensing technique, in the case of fast envelope tracking. The LDO regulator behaves as the master to rapidly trigger the SWR as a slave energy provider to rapidly deliver the average energy to the RF PA for high efficiency. The experimental results show that the test chip fabricated in 0.18μm CMOS process can accurately track the RF envelope signal, and the peak efficiency is 86.7% when the power is 0.95W.
Where in the world... NHS health Scotland knowledge services (2013)

This issue Julia Green, Knowledge Services Manager, takes us on a tour of the services and facilities of NHS Health Scotland.
A Review of Some Ultrasonics Treatments at the Johannesburg General Hospital (1956)

No Abstract available.
Highly Sensitive Cholesterol Assay with Enzymatic Cycling Applied to Measurement of Remnant Lipoprotein-Cholesterol in Serum (2002)

Serum RLP-C can be measured by the CD method. The CD method may be useful for other assays that require sensitive cholesterol measurements in biological materials.
Moderne Verfahren der Kryptographie (2001)

Das Werk einschließlich aller seiner Teile
Physics of palladium metal-oxide-semiconductor devices (1983)

This thesis Palladium gate metal-oxide-semiconductor (PdMOS) devices are used as hydrogen sensors. It is shown that the sensitivity is only partly due to the change of the effective work function o ...
Fabrication and characterization of PECVD phosphorus-doped silicon oxynitride layers for integrated optics application (2004)

Phosphorus-doped silicon oxynitride layers (n = 1.48 – 1.59) have been deposited by a Plasma Enhanced Chemical Vapor Deposition (PECVD) process from 2% SiH4/N2, N2O, NH3 and PH3 gaseous mixtures. The refractive indices of the deposited layers were found to increase by adding PH3 gas to the process. A slight variation in refractive index was observed in low refractive indices layers due to moisture absorption. Fourier transform infrared spectroscopy showed a significant reduction (40% –100%) in N-H bonds concentration for the P-doped silicon oxynitride, as compared with that for the undoped samples. These results are very promising for applications in low-loss integrated optical devices.
Factors Influencing Consumption of Edible Insects for Chinese Consumers (2019)

Edible insects are often considered a healthier and more sustainable meat substitute and protein source. Many studies have examined factors affecting the consumption behavior towards edible insects among Western consumers. However, little is known about factors influencing consumer behavior towards edible insects in Asian countries even though Asians have a long history of consuming insects. In this study, we surveyed 614 Chinese consumers from Beijing and Nanjing to examine the factors influencing their consumption and purchase behavior of edible insects. We find that insect phobia, feelings of disgust, knowledge level, and social demographic factors such as age, household size, household income and region (Northern or Southern China) are the main factors influencing purchase decisions. In addition, the results indicate that the perceived positive attributes associated with edible insects, the preferences of children in the household, as well as age and knowledge level have positive impacts on consumption frequency. On the other hand, concerns of food safety and the shape of the insects have negative impacts on consumption frequency. Finally, the results suggest that educating consumers to increase knowledge of edible insects increases their probability to purchase insect foods.
Exposure of Sperm Head Equatorin after Acrosome Reaction and Its Fate after Fertilization in Mice1 (2001)

Equatorin is a sperm head equatorial protein, possibly involved in sperm-oocyte fusion (Toshimori et al., Biol Reprod 1998; 59:22-29). In the present work, we have shown that equatorin contained in the posterior acrosome is detectable only after spontaneous or induced acrosome reactions following fixation and permeabilization, but not in intact spermatozoa. The presence of protease inhibitors during sonication or ionophore treatments does not inhibit the exposure of the antigenic epitope. The zona-penetrated spermatozoa lying in the perivitelline space display equatorin, similar to those of the acrosome-reacted ones. After sperm-egg fusion during in vitro fertilization (IVF), the equatorin dissociates from the sperm head equatorial region and remains at the vicinity of the decondensing male pronuclei. During pronuclear apposition stage, it is pushed away from the pronuclei, possibly by the perinuclear microtubules. After first cleavage, equatorin is inherited by one of the proembryonic cells. The residual equatorin disappears after the second cleavage. Microinjected whole spermatozoa or sperm heads into the MII stage oocytes display equatorin similar to those of the perivitelline sperm. After activation, it dissociates from the sperm nuclei in a similar manner as during IVF. The mode of equatorin degeneration during fertilization is similar to those of the sperm tail components or mitochondria, but different from those of the membrane associated proteins.
The Establishment of Vesicular-Arbuscular Mycorrhiza under Aseptic Conditions (1962)

SUMMARY: The establishment of vesicular-arbuscular mycorrhizal infections by inoculation with germinated resting spores of an Endogone sp. was investigated under microbiologically controlled conditions; pure two-membered cultures were obtained for the first time. Seedlings were grown in a nitrogen-deficient inorganic salt medium; in these conditions the fungus failed to form an appressorium and to penetrate the plant roots unless a Pseudomonas sp. was also added. Adding soluble nitrogen to the medium completely inhibited root penetration, even in the presence of the bacteria. Various sterile filtrates could be used to replace the bacterial inoculum but these substitutes induced only few infections per plant. Mycorrhizal roots grew more vigorously than non-mycorrhizal roots of the same seedling. They were longer and more profusely branched. At first mycorrhizal infections were predominantly arbuscular, but many prominent vesicles developed as the seedlings declined, and then the fungus grew out of infected roots and colonized the agar. The fungus could not be subcultured without a living host. The possible interpretation of these results is considered with reference to the specialized nutritional conditions under which test plants were grown.
High-power erbium-doped-fiber amplifiers operating in the saturated regime (1991)

It is shown that highly saturated, erbium-doped fiber amplifiers (EDFAs) can be employed as efficient power amplifiers. Differential pump-to-signal conversion efficiencies of 59% (quantum efficiency of 93%) can be obtained, resulting in 54 mW (+17.3 dBm) of amplified signal for only 100 mW of pump power at 978 nm. In addition, these amplifiers are shown to have virtually flat spectral-gain characteristics with a 1-dB bandwidth in excess of 38 nm. Operating in this mode, EDFAs are attractive for application as power amplifiers to ease power budget restrictions in point-to-point digital links, video distribution networks, and LANs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Phase determination method in statistical generalized phase-shifting digital holography (2013)

A simple estimation method of the relative phase shift for generalized phase-shifting digital holography based on a statistical method is proposed. This method consists of a selection procedure of an optimum cost function and a simple root-finding procedure. The value and sign of the relative phase shift are determined using the coefficient and the solution of the optimum cost function. The complex field of an object wave is obtained using the estimated relative phase shift. The proposed method lifts the typical restriction on the range of the phase shift due to the phase ambiguity problem. Computer simulations and optical experiments are performed to verify the proposed method.
Particle flow and collection process in single wire HGMS studies (1978)

A television system for the observation of HGMS particle flow and buildup on a ferromagnetic wire or small array of wires is described for three geometries. Data for the collection process and a sequence of pictures of buildup are presented for Mn <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> P <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf> , Mn <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> , and Cr <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> particles collected on 125 μm nickel wires. The wake, formed in some cases downstream from the particle collection, has been studied. Data on the wake is given and compared with published data on wake formation. New results on downstream and upstream collection on a wire as a function of slurry velocity is presented.
Estimation of co-relation between middle finger length & stature of females in South Indian population (2011)

Determination of stature is an important parameter of personal identification along with others like age, sex, race etc of an individual. The present study is an attempt to examine the relationship between the statures of middle finger length of 100 females of Karnataka, in south Indian population in age ranging from 17 to 19 years. Linear and multiple regression equations for stature estimation were calculated.
Observation of self-trapping of an optical beam due to the photorefractive effect (1993)

We report on the first observation of self-trapping of an optical beam due to the photorefractive effect. The self-trapping occurs at microwatt light power levels, is intensity independent, and results in significant spatial pulse reshaping.
Genetic modification of lignin biosynthesis in quaking aspen and poplar (1997)

info:eu-repo/semantics/published
Behaviorally Conditioned Immunosuppression and Murine Systemic Lupus Erythematosus (1982)

Development of autoimmune disease in female New Zealand hybrid mice was dramatically modified by classical conditioning of immunosuppression. Groups of animals received each week a solution of sodium saccharin (conditioned stimulus). One group of conditioned animals received an injection of cyclophosphamide (the unconditioned stimulus) after half of the weekly occasions when they received the saccharin solution. The rate of development of proteinuria and mortality were significantly retarded in these conditioned mice relative to untreated controls and nonconditioned animals that received unpaired treatment with saccharin and cyclophosphamide.
New Hyperforin Derivatives from <i>Hypericum revolutum</i> V<scp>AHL</scp> with Growth‐Inhibitory Activity against a Human Colon Carcinoma Cell Line (1989)

Abstract The crude petroleum‐ether extract of the root bark of Hypericum revolutum V AHL (Guttiferae) exhibited in vitro growth‐inhibitory activity against the Co‐115 human colon carcinoma cell line. Activity‐guided fractionation of this extract resulted in the isolation of two new hyperforin derivatives 1 and 2 . The structure of 1 (hyperevolutin A) was established by X‐ray analysis as the 4‐hydroxy‐8‐ exo ‐methyl‐5,7‐ exo ‐bis(3‐methylbut‐2‐enyl)‐1‐(2‐methyl‐1‐oxopropyl)‐8‐ endo ‐(4‐methylpent‐3‐enyl)bicyclo[3.3.1]non‐3‐ene‐2,9‐dione. The structure of the homologue 2 was deduced by comparison of its UV and 1 H‐ and 13 C‐NMR spectra with those of 1 .
Complex Formation between p53 and Replication Protein A Inhibits the Sequence-Specific DNA Binding of p53 and Is Regulated by Single-Stranded DNA (1997)

Human replication protein A (RP-A) (also known as human single-stranded DNA binding protein, or HSSB) is a multisubunit complex involved in both DNA replication and repair. Potentially important to both these functions, it is also capable of complex formation with the tumor suppressor protein p53. Here we show that although p53 is unable to prevent RP-A from associating with a range of single-stranded DNAs in solution, RP-A is able to strongly inhibit p53 from functioning as a sequence-specific DNA binding protein when the two proteins are complexed. This inhibition, in turn, can be regulated by the presence of various lengths of single-stranded DNAs, as RP-A, when bound to these single-stranded DNAs, is unable to interact with p53. Interestingly, the lengths of single-stranded DNA capable of relieving complex formation between the two proteins represent forms that might be introduced through repair and replicative events. Increasing p53 concentrations can also overcome the inhibition by steady-state levels of RP-A, potentially mimicking cellular points of balance. Finally, it has been shown previously that p53 can itself be stimulated for site-specific DNA binding when complexed through the C terminus with short single strands of DNA, and here we show that p53 stays bound to these short strands even after binding a physiologically relevant site. These results identify a potential dual role for single-stranded DNA in the regulation of DNA binding by p53 and give insights into the p53 response to DNA damage.
X‐Ray Microanalysis of ZrO <sub>2</sub> Particles in ZrO <sub>2</sub> ‐Toughened A1 <sub>2</sub> 0 <sub>3</sub> (1982)

Analytical electron microscopy of ZrO 2 particles in a zirconia‐toughened alumina was performed. Significant solute heterogeneities in these particles were found but did not seem to affect the particle size dependence of M s .
Decentralized enterprise systems: a multiplatform wireless sensor network approach (2007)

Massively deployed wireless sensor and actuator networks, co-existing with RFID technology, can bring clear benefits to large-scale enterprise systems, by delegating parts of the business functionality closer to the point of action. However, a major impediment in the integration process is represented by the variety of customized platforms and proprietary technologies. In this article, we present a three-layer, service-oriented architecture that accommodates different sensor platforms and exposes their functionality in a uniform way to the business application. Our work is motivated by real business cases from the oil and gas industry. In our implementation, we use three sensor platforms (particle, muNode, and Sindrion) integrated through the universal plug and play (UPnP) standard and incorporated into an enterprise software system. The practical tests and application trials confirm the feasibility of our solution but also reveal a number of challenges to be taken into account when deploying wireless sensor and actuator networks at industrial sites.
LAZAROID U-74389G FOR 48-HOUR CANINE LIVER PRESERVATION1,2 (1996)

Lazaroids have been reported to attenuate preservation and reperfusion injury. In this study, we examined whether lazaroids can improve the outcome after 48-hr canine liver preservation and transplantation. Adult female beagle dogs were randomized into 4 dosage groups (5 animals each). Lazaroid U-74389G was intravenously administered at a dose of 0 mg/kg, 6 mg/kg, 10 mg/kg, or 15 mg/kg to donors 30 min before harvesting and also to recipients 30 min before revascularization. Control animals (0 mg/kg) were given the lazaroid vehicle. The liver grafts were orthotopically transplanted after 48 hr of hypothermic preservation in UW solution. Lazaroid treatment significantly improved outcome after transplantation. Five-day animal survival increased from 0% in the control to 60% in the 6 mg/kg group, 100% in the 10 mg/kg group, and 80% in the 15 mg/kg group. Lazaroid protected the hepatocytes from damage during preservation, and enhanced energy charge and hepatic blood flow after reperfusion. Histological alterations were significantly less severe in the lazaroid-treated groups. The area of necrotic hepatocytes decreased from 43.7 +/- 17.7 in the control to 13.5 +/- 3.0 in the lazaroid 10 mg/kg group. These results indicate that lazaroid U-74389G has potential for improvement of clinical liver preservation.
Increased Activity of Coxsackievirus B1 Strains Associated with Severe Disease among Young Infants in the United States, 2007–2008 (2009)

Healthcare providers and public health departments should be vigilant to the possibility of continuing CVB1-associated neonatal illness, and testing and continued reporting of enterovirus infections should be encouraged.
Induction of solid tumor differentiation by the peroxisome proliferator-activated receptor-γ ligand troglitazone in patients with liposarcoma (1999)

Agonist ligands for the nuclear receptor peroxisome proliferator-activated receptor-gamma have been shown to induce terminal differentiation of normal preadipocytes and human liposarcoma cells in vitro. Because the differentiation status of liposarcoma is predictive of clinical outcomes, modulation of the differentiation status of a tumor may favorably impact clinical behavior. We have conducted a clinical trial for treatment of patients with advanced liposarcoma by using the peroxisome proliferator-activated receptor-gamma ligand troglitazone, in which extensive correlative laboratory studies of tumor differentiation were performed. We report here the results of three patients with intermediate to high-grade liposarcomas in whom troglitazone administration induced histologic and biochemical differentiation in vivo. Biopsies of tumors from each of these patients while on troglitazone demonstrated histologic evidence of extensive lipid accumulation by tumor cells and substantial increases in NMR-detectable tumor triglycerides compared with pretreatment biopsies. In addition, expression of several mRNA transcripts characteristic of differentiation in the adipocyte lineage was induced. There was also a marked reduction in immunohistochemical expression of Ki-67, a marker of cell proliferation. Together, these data indicate that terminal adipocytic differentiation was induced in these malignant tumors by troglitazone. These results indicate that lineage-appropriate differentiation can be induced pharmacologically in a human solid tumor.
Precise [100] crystal orientation determination on  110 -oriented silicon wafers (2002)

In this paper we propose a novel pre-etch method to determine the [100] direction on the surface of ⟨110⟩ silicon wafers with a diameter of 100 mm for precise bulk etching. A series of circular windows is arranged in an arc with a radius of 48.9 mm, and bulk etched to form hexagonal shapes for the indication of crystal orientation. The hexagons, which have two angles of 109° and four other angles of 125.5°, are surrounded by four {111} vertical planes and two {111} planes inclined 35.5° to the wafer surface. The corners of the hexagons are used as an alignment reference to indicate the [100] direction on the ⟨110⟩ silicon wafers. Using a calculation from the relationship between the circular windows with different diameters of 153, 74 and 35 μm and the circle center distances of 192, 96 and 48 μm, the alignment accuracy can be determined as ±0.11°, ±0.06° and ±0.03° to the projected [100] orientation, respectively. Experimental results also demonstrate the feasibility of accurately aligning long etching slots along the ⟨111⟩ direction. The misalignment has been determined to be 0.02° from 20 experimental samples, much less than the estimated value of ±0.03° on a 100 mm ⟨110⟩ wafer. This simple, accurate and fast alignment technique is applicable to long slot fabrication on ⟨110⟩ wafers with tight geometry tolerance.
Electroforming of Large Mirrors (1970)

Thin metal mirrors are prime candidates for space applications, because of their high thermal conductivity, low weight, and ability to withstand vibration during launch. Of all the fabrication processes, at the present state of the art, electroforming appears the most suitable for producing accurate, thin, metal mirrors with satisfactory mechanical and physical properties. Great strides were made over the past two years in precision electroforming. These are described along with General Electric’s spincasting process for the fabrication of masters.
A kepstrum approach to filtering, smoothing and prediction (2002)

The kepstrum (or complex cepstrum) method is revisited and applied to the problem of spectral factorization \nwhere the spectrum is directly estimated from observations. The solution to this problem in turn leads to a new \napproach to optimal filtering, smoothing and prediction using the Wiener theory. Unlike previous approaches to \nadaptive and self-tuning filtering, the technique, when implemented, does not require a priori information on the \ntype or order of the signal generating model. And unlike other approaches - with the exception of spectral \nsubtraction - no state-space or polynomial model is necessary. In this first paper results are restricted to \nstationary signal and additive white noise.
Two-Dimensional Polyaniline Thin Film Electrodeposited on a Self-Assembled Monolayer (1998)

A two-dimensional conducting polyaniline (PAN) monolayer has been formed on an electrically insulating monolayer. The approach is based on the electrochemical polymerization of surface-confined anilinium ions that were electrostatically attached to a negatively charged self-assembled monolayer of ω-mercaptodecanesulfonate (MDS), HS(CH2)10SO3-, on a gold surface. The formation and characterization of the two-dimensional film and the MDS monolayer have been examined by cyclic voltammetry, Fourier transform IR spectroscopy, X-ray photoelectron spectroscopy, wettability, and scanning electrochemical microscope. The formation of a capacitor-like assembly, in which electron transfer was blocked between PAN and the gold surface, was accomplished by electrochemically incorporating hexadecanethiol (C16) into the MDS monolayer. The PAN monolayer exhibits properties similar to those of a thin polymer film.
Psychopharmacological Effects of Doxepin Hydrochloride (1972)

Doxepin was compared with amitriptyline and imipramine in respect to behavioral pharmacology with rats and mice. Doxepin antagonized reserpine hypothermia and tetrabenazine ptosis and potentiated amphetamine stereotypy and methamphetamine hyperactivity. In this respect doxepin and amitriptyline were equipotent but doxepin was more potent than amitriptyline and imipramine regarding major or minor tranquilizing-like effects, such as reduction of locomotor activity in open-field test, inhibition of conditioned avoidance response, suppression of experimentally induced hyperemotionality, anticonvulsant activity and potentiation of hypnotics and anesthetics. Doxepin is, therefore, characterized as an antidepressant drug having marked tranquilizing activities.