gebhart/patrepeval huggingface dataset:
Distribuição vertical do fósforo no solo em função dos modos de aplicação (2015)

A demanda de estudos sobre a dinâmica das adubações e uso eficiente de fósforo na agricultura do cerrado brasileiro, foi propósito para este trabalho, cujo objetivo foi verificar a eficiência da combinação de modos de aplicação de fertilizantes fosfatados na distribuição vertical do nutriente no solo. O experimento foi realizado no sudoeste goiano, juntamente com o sistema de produção de soja e milho. O delineamento experimental foi em blocos casualizados, em esquema fatorial 6x6, entre os modos de adubação (100% da adubação a lanço, 75% a lanço e 25% na linha, 50% a lanço e 50% na linha, 25% a lanço e 75% na linha, 100% na linha e a testemunha) e as profundidades 0,0-2,5; 2,5-5,0; 5,0-7,5; 7,5-10,0; 10,0-15,0; 15,0-20,0 cm. Foi utilizado uma dose padrão de 120 Kg . ha-1 de P2O5 na forma de Fosfato Monoamônico (MAP). As avaliações foram teor de P no solo e foliar, altura e produtividade das plantas de soja, além da altura e produtividade do milho de segunda safra. A associação da adubação em 75% a lanço e 25% na linha, mostrou insuficiência para suprir toda necessidade das plantas pelo fósforo. Quando o fertilizante foi aplicado em maior percentual a lanço em área total proporcionou maior acúmulo de fósforo na camada de 0,0- 2,5 cm, entretanto, quando houve predomínio da aplicação na linha de plantio os maiores acúmulos ocorreram na camada de 5,0-7,5 cm.
Reference material (RM) 8820: a versatile new NIST standard for nanometrology (2010)

A new multipurpose instrument calibration standard has been released by NIST. This standard was developed to be used primarily for X and Y scale (or magnification) calibrations of scanning electron microscopes from less than 10 times magnification to more than 300 000 times magnifi cation, i.e., from about 10 mm to smaller than 300 nm range instrument field of view (FOV). This standard is identifi ed as RM 8820. This is a very versatile standard, and it can also be used for calibration and testing of other type of microscopes, such as optical and scanning probe microscopes. Beyond scale calibration, RM 8820 can be used for a number of other applications, some of which will be described in this publication.
Exploring the role of the unique N‐termini of PDE4D variants in regulating mural cell morphology, migration and cAMP signaling (1065.1) (2014)

Mural cells act adaptively to regulate vascular tone. After vascular damage, adoption of a synthetic phenotype increases proliferative and migratory capacity and aids in repair. Exaggerated, maladaptive responses can promote intimal hyperplasia, atherosclerotic lesion progression and arterial (re)stenosis. cAMP acting on protein kinase A (PKA) or exchange protein activated by cAMP (EPAC) regulate mural cell migration and adhesion. A cAMP signalosome in the leading edge of migrating mural cells contains PKA and phosphodiesterase (PDE) 4D8 and regulates actin assembly and migration. PDE4D isoforms share a common catalytic domain and C‐terminus. PDE4 inhibitors are non‐selective with respect to the individual PDE4 variants and compete with cAMP binding at the active site. The unique N‐termini of PDE4D isoforms are hypothesized to mediate selective protein‐protein based tethering to distinct subcellular domains. We examined the subcellular targeting, function and binding partners of the unique N‐termini of mural PDE4D variants and their impact on cAMP signalling. We show that these N‐terminal regions are important in regulating mural cell morphology, migration and adhesion. Grant Funding Source : Supported by Canadian Institutes of Health Research
Design, Synthesis, and Electrochemistry of Room‐Temperature Ionic Liquids Functionalized with Propylene Carbonate (2011)

A PC organic salt: A series of piperidinium salts with a covalently attached propylene carbonate (PC) moiety provides a novel room-temperature ionic liquid (RTIL). This uniquely functionalized RTIL exhibits favorable electrochemical stability, leading to lithium metal deposition/stripping. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Tapped-feed combline-type coplanar waveguide resonator bandpass filters (2002)

We present the newly developed tapped-feed combline-type bandpass filters using the coplanar waveguide resonators (comb-CPW-BPFs). The advantages of the comb-CPW-BPFs are the compact size, the low insertion losses and the suppression of spurious resonance responses with the loaded capacitors. The experimental results are given of the comb-CPW-BPFs and compared with the simulations to check the passband characteristics and the spurious resonance responses. In the experimental results, the spurious resonance responses of the spurious suppression type comb-CPW-BPF are suppressed more than -25.0 dB between 4.0 and 10.0 GHz.
The Copolymerization of Isonitriles by Boron Trifluoride-Ethyl Etherate (1967)

フェニルイソニトリル,p-トルイルイソニトリル,o-トルイルイソエトリル,シクロヘキシルイソニトリルの三フッ化ホウ素エーテル錯体による共重合性を, イソニトリルと共鳴構造が類似しそしてカチオン重合するジアゾメタンとの共重合およびこれらイソニトリル間の共重合により検討した。ジアゾメタンとの共重合性はフェニルイソニトリル, p-トルイルイソニトリル>o-トルイルイソニトリル>シクロヘキシルイソニトリルの順である。イソニトリル間の共重合からのモノマー反応性はシクロヘキシルイソニトリル>フェニルイソニトリル, p-トルイルイソニトリル> o-トルイルイソニトリルの順である。o-およびp-トルイルイソニトリルの間でo-体の重合性が低いのはオルト位のメチル基の立体障害に基因すると推定される。またイソニトリルがジアゾメタンと共重合することから,イソニトリルとジアゾメタンの重合機構は類似しているものと推定される。
VANDAL: A tool for the design specification of nanophotonic networks (2011)

Continuing to scale CMP performance at reasonable power budgets has forced chip designers to consider emerging silicon-photonic technologies as the primary means of on- and off-chip communication. Different designs for chip-scale photonic interconnects have been proposed, and system-level simulations have shown them to be far superior to purely electronic network solutions. However, specifying the exact geometries for all the photonic devices used in these networks is currently a time-consuming and difficult manual process. We present VANDAL, a layout tool which provides a user with semi-automatic assistance for placing silicon photonic devices, modifying their geometries, and routing waveguides for hierarchically building photonic networks. VANDAL also includes SCILL, a scripting language that can be used to automate photonic device place and route for repeatability, automation, verification, and scaling. We demonstrate some of the features and flexibility of the CAD environment with a case study, designing modulator and detector banks for integrated photonic links.
Electronically steerable parasitic array radiator antenna (2004)

Abstract The electronically steerable parasitic array radiator antenna consists of one feed radiating element and parasitic radiating elements placed in the near field of the active radiator. A beam is formed due to spatial electromagnetic field coupling among radiating elements. The radiation pattern is electronically controlled by means of the variable capacitance devices (varactors) loading the parasitic elements. Unlike a conventional phased array, only one transmitter and receiver are needed for system configuration. Therefore, adaptive beamforming of low dissipation power and low fabrication cost can be achieved. On the other hand, there is only one output port to observe the signal and the weights can be controlled indirectly via reactors instead of direct control. In addition, due to interelement mutual coupling and the parasitic element being directly connected to the reactive device, the linear adaptive array theory developed to date cannot be applied straightforward. In this paper, the configuration of this antenna, its operating principle and formulation, and its measurement method, control scheme, and applications to signal processing are presented. We describe a mathematical model to simulate the radio frequency behavior of the antenna, the equivalent weight vector used for formulation of the characteristics, the admittance matrix including varactors, the effective element length, the equivalent steering vector method, the method for effectively extending the variable range of the capacitance of the varactor, the reactance circuit to cancel nonlinear distortions, the method for calibration of varactors and radiation pattern by measurement of near field of the radiating element, the learning criteria used to control radiation patterns autonomously in adaptation to the electromagnetic environment, the reactance optimization algorithm, the concept of the reactance domain signal processing and the direction of arrival estimation based on such a process, and diversity reception and spatial correlation. © 2004 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 87(10): 25–45, 2004; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecjb.20081
Proline-Specific Dipeptidyl Aminopeptidase from Flavobacterium meningosepticum1 (1982)

A proline-specific dipeptidyl aminopeptidase was highly purified from cell-free extract of Flavobacterium meningosepticum by a series of column chromatographies on DEAE-Sephadex A-50, Sephadex G-150, hydroxyapatite, and a second gel filtration on Sephadex G-150. The enzyme was most active at pH 7.4-7.8 for both Gly-Pro-beta-naphthylamide (Gly-Pro-2-NNap) and Gly-Pro-p-nitroanilide (Gly-Pro-pNA) and was stable between pH 7 and 9.5. The enzyme was markedly inhibited by diisopropylphosphofluoridate (DFP) and mercury ion but not by sulfhydryl-blocking reagents and metal chelators. The molecular weight of the enzyme was about 160,000 as judged by the gel filtration method and the subunit molecular weight was estimated to be 75,000 by sodium dodecyl sulfate (SDS)-gel electrophoresis, suggesting a dimeric form of the native enzyme. The isoelectric point was at pH 9.5. The enzyme hydrolyzed peptides and peptide amides at the carboxyl side of a proline residue penultimate to the amino-terminal amino acid, as did post-proline dipeptidyl aminopeptidases from various mammals. However, antiserum raised against post-proline dipeptidyl aminopeptidase from porcine kidney did not cross-react with the Flavobacterium dipeptidyl aminopeptidase.
Fabrication of Dye-Sensitized Solar Cells Using Triethylamine Hydrothiocyanate as a CuI Crystal Growth Inhibitor (2002)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTFabrication of Dye-Sensitized Solar Cells Using Triethylamine Hydrothiocyanate as a CuI Crystal Growth InhibitorG. R. A. Kumara, S. Kaneko, M. Okuya, and K. TennakoneView Author Information Department of Materials Science and Technologies, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, 432-8561 Japan, and Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka Cite this: Langmuir 2002, 18, 26, 10493–10495Publication Date (Web):November 27, 2002Publication History Received6 May 2002Revised2 October 2002Published online27 November 2002Published inissue 1 December 2002https://pubs.acs.org/doi/10.1021/la020421phttps://doi.org/10.1021/la020421pbrief-reportACS PublicationsCopyright © 2002 American Chemical SocietyRequest reuse permissionsArticle Views1711Altmetric-Citations168LEARN 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 SUBJECTS:Crystallization,Inhibitors,Inorganic carbon compounds,Salts,Solar cells Get e-Alerts
Hunting Down Huntingtin (2012)

Huntington's disease was the first disease whose causative gene (HTT) was mapped to a chromosome, and yet almost 30 years later, rational treatments do not exist. A recent study using a mouse model supports a strategy to knock down HTT RNA.
Histone H1x is highly expressed in human neuroendocrine cells and tumours (2008)

We conclude that the high expression of histone H1x in NETs is probably due to the abundance of this protein in the cells from which these tumours originate.
Obtaining Universally Composable Security: Towards the Bare Bones of Trust. (2007)

A desirable goal for cryptographic protocols is to guarantee security when the protocol is composed with other protocol instances. Universally Composable (UC) security provides this guarantee in a strong sense: A UC-secure protocol maintains its security properties even when composed concurrently with an unbounded number of instances of arbitrary protocols. However, many interesting cryptographic tasks are provably impossible to realize with UC security in the standard, “plain” model of computation. Impossibility holds even if ideally authenticated communication channels are provided. In contrast, it has been demonstrated that general secure computation can be obtained in a number of idealized models. Each one of these models represents a form of trust that is put in some of the system’s components. This survey examines and compares some of these trust models, both from the point of view of their sufficiency for building UC secure protocols, and from the point of view of their practical realizability. We start with the common reference string (CRS) model, and then describe several relaxations and alternatives including the Defective CRS model, the key registration models, the hardware token model, the global and augmented CRS models, and a timing assumption. Finally, we briefly touch upon trust models for obtaining authenticated communication.
Nutritional role of the leucine metabolite β-hydroxy β-methylbutyrate (HMB) (1997)

This review develops the hypothesis that a metabolite of leucine termed β-hydroxy β-methylbutyrate (HMB) plays a key role in animal metabolism and that in certain circumstances insufficient amounts of HMB are either consumed in the diet or produced endogenously to supply tissue needs. The origin and metabolism of HMB is reviewed including the role of HMB in cholesterol biosynthesis. HMB feeding studies in animals are reviewed, which indicate that dietary supplementation of HMB can improve immune function and health and can increase the fat content of milk in lactating animals. Seven human studies are reviewed where HMB was fed. The results of both animal and human studies indicate that dietary supplementation of HMB is safe, as evidenced by lack of physical adverse effects and a lack of effect on blood hematology and chemistry. The only consistent change in blood chemistry was a decrease in LDL cholesterol, which changed 7% (P < .01). In humans undergoing resistance training, HMB supplementation increased lean mass gains from 50 to 200%, with similar percentage increases in strength when compared with unsupplemented subjects. The effects of HMB on muscle size and function seems to result from a diminution of exercise-related muscle damage and muscle protein breakdown. A general hypothesis is proposed that HMB is metabolized to HMG-CoA in tissues such as muscle, mammary tissue, and certain immune cells and is used for de novo cholesterol synthesis. In times of stimulated growth and/or differentiation. HMG-CoA may be rate-limiting for cholesterol synthesis, which could limit cell growth or function. It is proposed that feeding HMB can provide a saturating source of cytosolic HMG-CoA for cholesterol synthesis and in turn allow for maximal cell growth and function.
A prototype tap test imaging system: Initial field test results (2000)

This paper describes a simple, field-worthy tap test imaging system that gives quantitative information about the size, shape, and severity of defects and damages. The system consists of an accelerometer, electronic circuits for conditioning the signal and measuring the impact duration, a laptop PC and data acquisition and processing software. The images are generated manually by tapping on a grid printed on a plastic sheet laid over the part’s surface. A mechanized scanner is currently under development. The prototype has produced images for a variety of aircraft composite and metal honeycomb structures containing flaws, damages, and repairs. Images of the local contact stiffness, deduced from the impact duration using a spring model, revealed quantitatively the stiffness reduction due to flaws and damages, as well as the stiffness enhancement due to substructures. The system has been field tested on commercial and military aircraft as well as rotor blades and engine decks on helicopters. Field test results will be shown and the operation of the system will be demonstrated.—This material is based upon work supported by the Federal Aviation Administration under Contract #DTFA03-98-D-00008, Delivery Order No. IA016 and performed at Iowa State University’s Center for NDE as part of the Center for Aviation Systems Reliability program.
Molecular structures: Perception, autocorrelation descriptor and sar studies. System of atomic contributions for the calculation of the n-octanol/water partition coefficients. (1984)

On presente un systeme de contributions atomiques additives pour le calcul des LogP. Les contributions prennent en compte la nature des atomes et leur environnement. Ce systeme permet de calculer le LogP de la plupart des molecules organiques avec une precision de 0,4 unites et permet d'evaluer la distribution de la lipophilicite sur la structure moleculaire
[Immortalization of endothelial cells differentiated from mouse embryonic stem cells]. (2002)

This study is designed to immortalize endothelial cells differentiated from embryonic stem cells. The embryoid bodies (EB) formed in vitro from embryonic stem cells, were induced to differentiate into many "round cells" (the precursor of endothelial cells) by retinoic acid (RA) and transforming growth factor-beta1 (TGF-beta1). These "round cells" later formed the vascular tube-like structures. Studies by scanning electronic microscopy and light microscopy and immunocytochemistry, demonstrated that these tube-like structures were constituted by a large number of round and flat cells, which were positive for "vWF" and "CD34"staining. These results indicate they are vascular endothelial cells. To immortalize these cells, human telomerase reverse transcriptase (hTERT) cDNA was transfected into "round cells" by lipofectine. hTERT mRNA expression in transfected cells was confirmed by Dot blot, RT-PCR. Furthermore, 95% these transfected cells maintain the characteristic of endothelial cell, can proliferate in large quantity in vitro, and are able to form tubular structures. These results suggest that hTERT cDNA transfection can immortalize the induced endothelial cells and therefore may provide a new source of seed cells for vascular engineering.
Gravimeter using high-temperature superconducting bearing (1999)

We have developed a sensitive gravimeter concept that uses an extremely low-friction bearing based on a permanent magnet (PM) levitated over a high-temperature superconductor (HTS). A mass is attached to the PM by a cantilevered beam, and the combination of PM and HTS forms a bearing platform that has low resistance to rotational motion but high resistance to horizontal, vertical, or tilting motion. The combination acts as a low-loss torsional pendulum that can be operated in any orientation. Gravity acts on the cantilevered beam and attached mass, accelerating them. Variations in gravity can be detected by time-of flight accelerator, or by a control coil or electrode that would keep the mass stationary. Calculations suggest that the HTS gravimeter would be as sensitive as present-day superconducting gravimeters that must be cooled to liquid helium temperatures, but the HTS gravimeter needs cooling only to liquid nitrogen temperatures.
Transition of Window Breakdown from the Vacuum Multipactor Discharge to the Collisional RF Plasm (2006)

In high-power microwave systems, we investigate the transition of breakdown from single surface vacuum multipactor discharge to collisional rf plasma in argon. As the gas pressure increases, electron-neutral collisions prevail against secondary electron emissions. In addition, the discharge formation time is obtained as a function of the gas pressure
Impact of Cloning in Bacillus subtilis on Fundamental and Industrial Microbiology: The Eighth Griffith Memorial Lecture (1980)

Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher and we support and invest in the microbiology community, to the benefit of everyone. This supports our principal goal to develop, expand and strengthen the networks available to our members so that they can generate new knowledge about microbes and ensure that it is shared with other communities.
COOLING PROCESS AND HEAT TRANSFER PARAMETERS (2023)

The cooling process parameters (CPPs) in terms of lag factor, cooling coefficient, half-cooling time, and seven-eighths cooling time and the cooling heat transfer parameters (CHTPs) in terms of thermal diffusivity and heat transfer coefficient are known as the quantities representing a cooling process operationally and thermally. These parameters are of great importance for practical cooling applications. In this study, we present new models for CPPs and CHTPs and new correlations such as Nusselt-Reynolds and Fourier-Reynolds correlations. Due to the intimate linkage between the CPPs and the CHTPs, the CPPs and are incorporated into the CHTPs. A comprehensive examination of these parameters is presented along with illustrative examples. Finally, several conclusions, which may be useful to the engineers and scientists working in the field of cooling technology, are drawn for practical food cooling applications.
Microbiota assembly, structure, and dynamics among Tsimane horticulturalists of the Bolivian Amazon (2020)

Selective and neutral forces shape human microbiota assembly in early life. The Tsimane are an indigenous Bolivian population with infant care-associated behaviors predicted to increase mother-infant microbial dispersal. Here, we characterize microbial community assembly in 47 infant-mother pairs from six Tsimane villages, using 16S rRNA gene amplicon sequencing of longitudinal stool and tongue swab samples. We find that infant consumption of dairy products, vegetables, and chicha (a fermented drink inoculated with oral microbes) is associated with stool microbiota composition. In stool and tongue samples, microbes shared between mothers and infants are more abundant than non-shared microbes. Using a neutral model of community assembly, we find that neutral processes alone explain the prevalence of 79% of infant-colonizing microbes, but explain microbial prevalence less well in adults from river villages with more regular access to markets. Our results underscore the importance of neutral forces during microbiota assembly. Changing lifestyle factors may alter traditional modes of microbiota assembly by decreasing the role of neutral processes.