gebhart/patrepeval huggingface dataset:
The lasing characteristics of GaN-based vertical-cavity surface-emitting laser with AlN-GaN and Ta/sub 2/O/sub 5/--SiO/sub 2/ distributed Bragg reflectors (2006)

The characteristics of a GaN-based vertical-cavity surface-emitting laser (VCSEL) with 25 pairs AlN-GaN distributed Bragg reflector (DBR) and eight pairs Ta <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> --SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> DBR was investigated and analyzed under the optical pumping at room temperature. The GaN-based VCSEL emits a blue wavelength at 448 nm with a linewidth of 0.17 nm with a near-field emission spot diameter of about 3 μm. The laser beam has a near linear polarization with a degree of polarization of about 84%. The laser shows a high spontaneous emission coupling efficiency of about 5×10/sup -2/ and a high characteristic temperature of about 244 K.
Gravity meter calibration at LaCoste and Romberg (1991)

Abstract An ideal gravity meter has a linear response so that its calibration is represented by a single scale factor. Microscopic variations in manufacturing lead to significant departures from this ideal. These variations from linearity are measured by observing the response of the gravity meter to the addition of a test mass to the gravity meter beam at various intervals throughout the meter's range. This procedure measures the slope of the calibration curve at these points and therefore serves to define its shape. A compromise between accuracy, reading resolution, and cost needs to be reached. High accuracy requires a large mass difference which causes low resolution, requiring many overlapping observations which in turn leads to higher cost. The current procedure provides precision and resolution consistent with a precision of 10 mu Gals (1 microgal = 10 nm/s 2 ) over short ranges. The resulting calibration curve is scaled to gravity units with repeated observations over a 241.9-mGal gravity range at Cloudcroft, New Mexico. This gravity interval is now known to be too small by a few parts in 10 000, and updating it awaits absolute gravity measurements at the site. For consistency the old value will continue to be used until it can be replaced with a more accurate absolute value.Periodic calibration errors, referred to as circular errors, due to irregularities in manufacturing the measuring screw and gear train, are measured at three points along the travel of the screw. A screw is rejected if the peak-to-peak amplitude of the periodic error exceeds 40 and 8 mu Gals for model G and model D meters, respectively.
HCN2 Channel-Induced Rescue of Brain Teratogenesis via Local and Long-Range Bioelectric Repair (2020)

Embryonic exposure to the teratogen nicotine results in brain defects, by disrupting endogenous spatial pre patterns necessary for normal brain size and patterning. Extending prior work in <i>Xenopus laevis</i> that showed that misexpression of ion channels can rescue morphogenesis, we demonstrate and characterize a novel aspect of developmental bioelectricity: channel-dependent repair signals propagate long-range across the embryo. We show that distal HCN2 channel misexpression and distal transplants of HCN2-expressing tissue, non-cell-autonomously reverse profound defects, rescuing brain anatomy, gene expression, and learning. Moreover, such rescue can be induced by small-molecule HCN2 channel activators, even with delayed treatment initiation. We present a simple, versatile computational model of bioelectrical signaling upstream of key patterning genes such as <i>OTX2</i> and <i>XBF1</i>, which predicts long-range repair induced by ion channel activity, and experimentally validate the predictions of this model. Our results and quantitative model identify a powerful morphogenetic control mechanism that could be targeted by future regenerative medicine exploiting ion channel modulating drugs approved for human use.
Reverse engineering application of 3D optical scanning technology (2015)

针对三维扫描测量数据因为原始点云在获取时受环境等客观条件限制，存在不可避免的噪声点、飞点、重叠点云等现象，以致存在点云密度大、运算复杂、计算周期长等问题，本文以在逆向工程中具有将三维物体几何信息转换为计算机能直接处理的二维数字信号的功能的三维光学扫描技术为基础，研究了三维扫描技术应用的主要设备、常用软件、使用方法和实体建模商用软件，研究了其原理及数学模型；结合XJTUOM，制定了扫描策略，以某型号汽车皮带轮和减震器托盘为例进行了实践操作，结果表明：该设备能够满足在逆向工程的应用，其扫描精度接近原始数模的相似度为98%。
Effect of ascorbyl palmitate on the quality of frying fats for deep frying operations (1985)

Abstract The addition of 0.02% ascorbyl palmitate (AP) reduced color development of frying fat (animal fat/vegetable oil [A‐V] shortening) and vegetable oil (partially hydrogenated soybean [V‐S] oil) in simulation studies. It also reduced peroxide values, development of conjugated diene hydroperoxides (CDHP) and their subsequent degradation to volatile compounds, such as decanal and 2,‐4 decadienal, indicating that AP has the ability to inhibit thermal oxidation/degradation of frying fats and oils. A commercial french fry fat had lower CDHP values compared to A‐V fat in simulated studies, and fried chicken oil had lower CDHP values than the V‐S oil. Peanut oil had higher thermal stability than the other fats and oils.
Using biosensors to detect the release of serotonin from taste buds during taste stimulation. (2005)

CHO cells transfected with high-affinity 5HT receptors were used to detect and identify the release of serotonin from taste buds. Taste cells release 5HT when depolarized or when stimulated with bitter, sweet, or sour tastants. Sour- and depolarization-evoked release of 5HT from taste buds is triggered by Ca2+ influx from the extracellular fluid. In contrast, bitter- and sweet-evoked release of 5HT is triggered by Ca2+ derived from intracellular stores.
Opportunities and Challenges of Ad-based Measurements from the Edge of the Network (2017)

For many years, the research community, practitioners, and regulators have used myriad methods and tools to understand the complex structure and behavior of ISPs from the edge of the network. Unfortunately, the nature of these techniques forces the researcher to find a balance between ISP-coverage, user scale, and accuracy. In this paper we present AdTag, a network measurement paradigm that leverages the opportunistic nature of online targeted advertising to measure the Internet from the edge of the network. We discuss and formalize AdTag's design space---including technical, ethical, deployability and economic factors---and its potential to analyze a wide spectrum of Internet connectivity aspects from the browser. We run several experiments to demonstrate that AdTag can be tailored towards geographic and device-based user groups, finding also several challenges to be faced in order to maximize the number of samples. In a 7-day campaign, AdTag could access more than 20K ISPs at a global scale (185 countries) using millions of edge nodes.
Pore Architecture and Connectivity in Gas Shale (2015)

The pore size distribution and architecture in gas shales were studied using a combination of small-angle neutron scattering (SANS), mercury injection capillary pressure (MICP), and helium ion microscopy (HIM). SANS analysis shows that the pore size population is not a power-law distribution across many length scales, typical of sedimentary rocks, but contains an anomalous population of pores on-the-order ∼2 nm, housed primarily in the organic matter. A model is presented showing how a “foamy porosity” with such a characteristic size is a direct result of diagenetic evolution of kerogen. Cross-linking of the kerogen combined with phase separation of gas/oil, leads to arrested coarsening with a length scale set by the cross-length density. These pore populations determined by the scattering model are directly supported by HIM images. Pore connectivity determined through pore-size-to-pore-throat analysis, suggests that interpore connections are also distinct from typical sedimentary rocks. The pore/throat ratio, unlike the simple ratios predicted from sphere packing and found for clastic rocks, is nearly constant over all pore sizes. Kerogen diagenesis is a recognized source of excess internal pressure. When this pressure causes failure of the material surrounding the kerogen to create escape pathways for the phase-separated fluid, it is likely that escape pathways will connect intergranular porosity via microfractures, producing the relatively narrow aperture size distribution.
Attenuation of long-lasting effects of sympathetic stimulation after repeated stimulation. (1990)

Neuropeptide Y (NPY) is stored with norepinephrine in sympathetic nerves throughout the cardiovascular system and is released during activation of the sympathetic nervous system in humans and other animals. After stimulation of the cardiac sympathetic nerves in anesthetized dogs, the action of the vagus nerve on heart rate is attenuated for a prolonged period. This attenuation of cardiac vagal action is also seen after injection of NPY. Both sympathetic stimulation and exogenous NPY inhibit cardiac vagal effects by acting on postganglionic vagal nerves. Because the supply of neuropeptides to nerve terminals is by axonal transport, it might be expected that repeated stimulation of cardiac sympathetic nerves would deplete the sympathetic neural factor, proposed to be NPY. In all 11 dogs of this study, repeated episodes of stimulating the cardiac sympathetic nerve (16 Hz for 1 minute each) had a diminishing effect in attenuating cardiac vagal action. However, the episodes of sympathetic stimulation did not show diminishing effectiveness in increasing heart rate. Exogenous NPY had similar inhibitory effects on vagal action whether given at the beginning or the end of the episodes of sympathetic stimulation. Transmural stimulation of sympathetic nerves around rabbit ear arteries produced effects that are also mimicked by NPY. These are prolonged potentiation of contractions evoked by injection of norepinephrine or by brief bursts of transmural stimulation. Repeated stimulations in this case also had diminishing abilities to evoke such potentiations. Both sets of observations are consistent with repeated stimulation of sympathetic nerves causing depletion of a nonadrenergic transmitter, possibly NPY.
Protection against Fasciola hepatica in the intestine is highly correlated with eosinophil and immunoglobulin G1 responses against newly excysted juveniles (1999)

Rats were infected with Fasciola hepatica and challenged at regular intervals up to 38 weeks using an ex vivo gut loop, a technique developed in our laboratory. The kinetics of the observed immune responses against F. hepatica in gut tissue and serum were investigated and correlated to protection. Immunohistochemical methods were used to measure the frequency of eosinophils, immunoglobulin (Ig)E-positive cells, and mucosal mast cells in the gut loop, and to determine whether the newly excysted juveniles were coated with IgG antibodies or surrounded by eosinophils, or both. Enzyme-linked immunosorbent assays and a radioimmuno assay were used to measure serum antibody reactive with newly excysted juveniles. Results showed that protection was highly correlated with the frequency of eosinophils and IgE-positive cells in the gut, but was only moderately correlated with the frequency of mucosal mast cells. Newly excysted juveniles taken from rats exhibiting high levels of protection were always coated with IgG antibodies and surrounded by eosinophils. Protection was highly correlated with titers of serum IgG1 antibodies directed against newly excysted juveniles, but was only weakly correlated with titers of serum IgA and IgE antibodies. Because protection was highly correlated with IgG1 in gut tissue and serum, and with eosinophils in gut tissue, we suggest that IgG1 and eosinophils are important in protecting rats against F. hepatica.
Interactions between chondroitin sulfate proteoglycan, fibronectin, and collagen. (1982)

A proteoglycan isolated from a rat yolk sac tumor and characterized as a chondroitin sulfate proteoglycan with a smaller amount of dermatan sulfate was studied with respect to complex formation with collagen and fibronectin. The proteoglycan co-precipitated with native collagen from neutral salt solutions at 6 degrees C and 37 degrees C. Addition of fibronectin in such precipitation mixtures resulted in incorporation of fibronectin to the precipitate. Treatment of the proteoglycan with alkali to separate the glycosaminoglycan chains from the protein part and digestion of the protein part with papain greatly reduced the capacity of the proteoglycan to precipitate collagen and fibronectin. A defined extracellular matrix as represented by the complexes of collagen, proteoglycan, and fibronectin constructed here may be useful for studies on the biological effects of extracellular matrices. The multiple interactions of matrix macromolecules exemplified by these results may play a role in the formation of extracellular matrices and in the maintenance of their integrity.
Munkamigráció a székelyföldi térségben (2019)

Migration for the purpose of employment is an important social phenomenon. The followingstudy provides insight into the situation of labor migration in Szeklerland after the change ofregime. It outlines the most important trends that define this social process from 1990 to thepresent and indicates the changes along which the different periods of labor migration can beseparated. The study discusses the changing perceptions of the connection between migrationand development. The last subchapter contains an analysis about the phenomenon of decisionmaking in the context of new lifestyle trends resulting from migration.
Bridging the innovation gap for neglected tropical diseases in Mexico: capacity building for the development of a new generation of antipoverty vaccines (2011)

The neglected tropical diseases (NTDs) represent a group of chronic parasitic and related infections that promote poverty because of their impact on child development, pregnancy, and worker productivity. The estimated 20 million Mexicans who live below the poverty line suffer disproportionately from a high prevalence of neglected tropical diseases such as amebiasis, Chagas disease, dengue, leishmaniasis, soil-transmitted helminth infections, trachoma, and vivax malaria. However, because the NTDs occur predominantly among the poor, new industrial and financial models are required to establish innovative technologies to address these conditions in Mexico and elsewhere in Latin America. In response, the Slim Initiative for Antipoverty Vaccine Development was established to foster a public/private partnership between key academic, government, and industrial institutions in the U.S. and Mexico. Initial emphasis will be placed on developing new vaccines for Chagas disease and leishmaniasis, two of the highest burden NTDs in Mexico and Mesoamerica.
Electrodeposition of polyaniline onto non-noble metals II. Nickel (1992)

Electrodeposition of polyaniline from an aqueous sulfuric acid solution onto nickel is studied. To overcome corrosion of the metal and to obtain smooth adhesive polymer coatings special potentio- and galvanopulse techniques were elaborated. Polyaniline/nickel electrodes are shown to be cyclable in all the range of the polymer electroactivity including the domain of active dissolution of the uncovered metal.
Spatial and Temporal Localization of Transforming Growth Factor-β, Fibroblast Growth Factor-2, and Osteonectin, and Identification of Cells Expressing α-Smooth Muscle Actin in the Injured Anulus Fibrosus (2002)

Immunoreactivity for the noted agents was strongly associated with regions of the annular lesions undergoing matrix reorganization consistent with an active repair response. This response extended as far as the middle third of the anulus fibrosus, which also demarcated the extent of blood vessel ingrowth and cellular infiltration in this model. The alpha-smooth muscle cell actin expression suggested an active involvement of myofibroblasts in the anulus fibrosus repair processes.
ERN1 and ALPK1 inhibit differentiation of bi-potential tumor-initiating cells in human breast cancer (2016)

Cancers are heterogeneous by nature. While traditional oncology screens commonly use a single endpoint of cell viability, altering the phenotype of tumor-initiating cells may reveal alternative targets that regulate cellular growth by processes other than apoptosis or cell division. We evaluated the impact of knocking down expression of 420 kinases in bi-lineage triple-negative breast cancer (TNBC) cells that express characteristics of both myoepithelial and luminal cells. Knockdown of ERN1 or ALPK1 induces bi-lineage MDA-MB-468 cells to lose the myoepithelial marker keratin 5 but not the luminal markers keratin 8 and GATA3. In addition, these cells exhibit increased β-casein production. These changes are associated with decreased proliferation and clonogenicity in spheroid cultures and anchorage-independent growth assays. Confirmation of these assays was completed in vivo, where ERN1- or ALPK1-deficient TNBC cells are less tumorigenic. Finally, treatment with K252a, a kinase inhibitor active on ERN1, similarly impairs anchorage-independent growth of multiple breast cancer cell lines. This study supports the strategy to identify new molecular targets for types of cancer driven by cells that retain some capacity for normal differentiation to a non-tumorigenic phenotype. ERN1 and ALPK1 are potential targets for therapeutic development.
New drugs for the treatment of type 2 diabetes (2007)

Insights into the pathogenesis of type 2 diabetes has led to increasing therapeutic targets for intervention, and improvements in peptide delivery technology have lead to non-injection methods of insulin delivery. This article reviews new drugs which are likely to become available for use by people with diabetes over the coming year.
Plasmonic Properties of Silicon Nanocrystals Doped with Boron and Phosphorus (2015)

Degenerately doped silicon nanocrystals are appealing plasmonic materials due to silicon's low cost and low toxicity. While surface plasmonic resonances of boron-doped and phosphorus-doped silicon nanocrystals were recently observed, there currently is poor understanding of the effect of surface conditions on their plasmonic behavior. Here, we demonstrate that phosphorus-doped silicon nanocrystals exhibit a plasmon resonance immediately after their synthesis but may lose their plasmonic response with oxidation. In contrast, boron-doped nanocrystals initially do not exhibit plasmonic response but become plasmonically active through postsynthesis oxidation or annealing. We interpret these results in terms of substitutional doping being the dominant doping mechanism for phosphorus-doped silicon nanocrystals, with oxidation-induced defects trapping free electrons. The behavior of boron-doped silicon nanocrystals is more consistent with a strong contribution of surface doping. Importantly, boron-doped silicon nanocrystals exhibit air-stable plasmonic behavior over periods of more than a year.
Quiet Clean Short-haul Experimental Engine (QCSEE) UTW fan preliminary design (2013)

High bypass geared turbofan engines and propulsion systems designed for short-haul passenger aircraft are described. The propulsion technology required for future externally blown flap aircraft with engines located both under the wing and over the wing is emphasized. The aerodynamic and mechanical preliminary design of the QCSEE under the wing 1.34 pressure ratio fan with variable blade pitch is presented. Design information is given for two pitch change actuation systems which will provide reverse thrust.
Novel luminescent cyclometaiated and terpyridine gold(III) complexes and DNA binding studies (1995)

Two gold complexes, [AuIII{4-MeOPh-(Phbipy)}Cl]·CF3SO31 and [AuIII(4-MeOPh-terpy)Cl]·(ClO4)22[4-MeOPh-(Phbipy)= 4′-(4-methoxyphenyl)-6′-phenyl-2,2′-bipyridine, 4-MeOPh-terpy = 4′-(4-methoxyphenyl)-2, 2′,6′, 2″-terpyridine] are prepared, and their interactions with calf-thymus DNA, poly(dG-dC)2and poly(dA-dT)2, investigated by spectroscopic means; in the reaction with ct DNA, 1 has a higher binding constant than 2, but the latter has a higher degree of AT specificity.
Volatile constituents of Asian pear (Pyrus serotina) (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVolatile constituents of Asian pear (Pyrus serotina)Gary R. Takeoka, Ron G. Buttery, and Robert A. FlathCite this: J. Agric. Food Chem. 1992, 40, 10, 1925–1929Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October 1992https://pubs.acs.org/doi/10.1021/jf00022a040https://doi.org/10.1021/jf00022a040research-articleACS PublicationsRequest reuse permissionsArticle Views824Altmetric-Citations101LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Processing and properties of molybdenum silicide intermetallics containing boron (1998)

The processing and mechanical properties of Mo-Si-B intermetallic alloys with compositions Mo-26.7Si-7.3B and Mo-12Si-8.5B (at.%) were investigated. The first alloy consisted of the phases Mo{sub 3}Si, Mo{sub 5}Si{sub 3} (T1) and Mo{sub 5}SiB{sub 2} (T2). Attempts to extrude castings of this alloy at 1700 or 1800 C were not successful. Hot isostatic pressing of elemental powders was more promising and room temperature flexure strengths on the order of 200 MPa were reached. The second alloy with the composition Mo-12Si-8.5B could be readily cast and consisted of {alpha}-Mo inclusion in a brittle matrix of Mo{sub 3}Si and T2. A heat treatment of 1 day at 1600C in vacuum improved the room temperature strength and fracture toughness. Values on the order of 500 MPa and 10 MPa m{sup 1/2}, respectively, were obtained. Consistent with ductile phase toughening, limited plastic deformation as well as debonding of the {alpha}-Mo inclusions were seen on fracture surfaces.
Recipient-Derived Neoangiogenesis of Arterioles and Lymphatics in Quilty Lesions of Cardiac Allografts (2007)

The inflammatory compartment of Quilty lesions is of recipient origin and shows chimeric neoangiogenesis of blood and lymphatic vessels. VEGF-alpha produced in the adjacent myocardium appears to stimulate the chimeric neoangiogenesis.