gebhart/patrepeval huggingface dataset:
Chromium(III) porphyrins. Chemical and spectroscopic properties of chloro-meso-tetraphenylporphinatochromium(III) in nonaqueous solutions (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChromium(III) porphyrins. Chemical and spectroscopic properties of chloro-meso-tetraphenylporphinatochromium(III) in nonaqueous solutionsDavid A. Summerville, Robert D. Jones, Brian M. Hoffman, and Fred BasoloCite this: J. Am. Chem. Soc. 1977, 99, 25, 8195–8202Publication Date (Print):December 1, 1977Publication History Published online1 May 2002Published inissue 1 December 1977https://doi.org/10.1021/ja00467a012RIGHTS & PERMISSIONSArticle Views1332Altmetric-Citations81LEARN 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 InReddit PDF (935 KB) Get e-Alertsclose Get e-Alerts
Pultruded fiber‐reinforced polyurethane‐toughened phenolic resin. II. Mechanical properties, thermal properties, and flame resistance (1996)

A novel process has been developed to toughen phenolic resin by polyurethane for fiber-reinforced pultruded composites. The mechanical properties of the composites (tensile strength, flexural strength, and notched Izod impact strength) approach maximum values at 10 wt% of the blocked polyurethane content. The fabricated composites show good mechanical properties and possess low void fraction. Notched Izod impact strength of the composite (with 5 wt% polyurethane content) increases by more than 30% compared to the virgin composite. The thermogravimetric analysis (TGA) showed that the temperature for the 5% weight loss of the phenolic/polyurethane copolymer decreases with the increasing of the polyurethane content; however, the thermal degradation temperature is still higher than 350°C. Differential scanning calorimetric analysis (DSC) showed that the onset point of copolymer is 20°C higher than that of the virgin one. The presence of the blocked polyurethane may hinder the polymerization of phenolic resin. The modified composite shows excellent dimensional stability. The copolymer composite also possesses good fire resistance. © 1996 John Wiley & Sons, Inc.
Introduction (2018)

In the Introduction to Childhood and Markets, I provide a rationale for the focus on young children, parents and the business of child caring. Scholarship on children, childhood and consumer culture has not shown much interest in the youngest of children; toddlers, babies, and even those yet to be born. Here, I present an argument for why it is important to do so. Focussing on the practice of child caring, I argue, not only enables theoretical innovation, but also offers tools for attending to the complex interconnections and cultural work that bring the value of a range of commodities in line with the value of children. The final section provides an overview of the book’s content.
Cooperative luminescence and absorption in Ytterbium-doped silica fiber and the fiber nonlinear transmission coefficient at λ=980 nm with a regard to the Ytterbium ion-pairs' effect: Comment (2006)

Recently, significant power losses in ytterbium-doped fibers have been interpreted as resulting from the formation of ytterbium ion pairs [A. V. Kir'yanov et al., Opt. Express 14, 3981 (2006)]. However, there appears to be strong evidence against this model.
A 640 MB/s bi-directional data strobed, double-data-rate SDRAM with a 40 mW DLL circuit for a 256 MB memory system (1998)

In a memory system employing wide channel high-performance DRAMs, skews resulting from nonideal system and chip environments become the most critical factor. This 256 MB memory system achieves 256 Gb/s peak bandwidth with a 160 MHz clock and 64b channel using a /spl plusmn/0.4 V-swing, push-pull type I/O interface (SSTL).
Use of stereolithographic models as diagnostic and restorative aids for predictable immediate loading of implants. (2004)

Implant dentistry has evolved into one of the most predictable treatment alternatives in all of medical science. Advances in the surgical and prosthetic components, implant designs and surface technologies, and imaging techniques have allowed for significant modifications to occur with respect to one- and two-stage surgical protocols, accelerating treatment times to the benefit of patient and clinician. This article presents a technique to improve surgical and restorative accuracy, allowing for predictable placement and immediate loading of implants through use of CT imaging, stereolithographic models, and CT-derived surgical templates.
Non-invasive human vital signs monitoring based on twin-core optical fiber sensors (2019)

Twin-core fiber (TCF)-based sensor was proposed for non-invasive vital sign monitoring, including respiration and heartbeat. The TCF was homemade and the corresponding sensor was fabricated by sandwiching single-mode fiber (SMF) on both ends. The offset distance between SMF and TCF was optimized while the length of TCF was identified from preliminary vital sign measurement results. Then, the TCF-based sensor was attached under a mattress to realize non-invasive vital sign monitoring. Both respiration and heartbeat signal can be obtained simultaneously, which is consistent with the reference signals. For further application, post-exercise physiological activitity characterization were realized based on this vital sign monitoring system. In discussion, mode coupling in TCF was analyzed and utilized for curvature sensing with achieved sensitivity as high as 18 nm/m<sup>-1</sup>, which supported its excellent performance for vital signs monitoring. In conclusion, the TCF-based vital signs monitors can be a promising candidate for healthcare and biomedical applications.
The electromagnetic radiation from a finite antenna (1975)

Textbooks rarely give time−domain solutions to antenna problems. For the case of a finite linear antenna along which a fixed current waveform propagates, we present analytical time−domain solutions for the electric and magnetic radiation (far) fields. We also give computer solutions for the total (near and far) fields. The current waveform used as an example in the computer calculations approximates that of a lightning return−stroke, a common geophysical example of the type of radiation source under consideration.
Spaceborne laser instruments for high-resolution mapping (2010)

We discuss past, present and future spaceborne laser instruments for high-resolution mapping of Earth and planetary surfaces. Previous spaceborne-laser-altimeters projected and imaged a single laser spot for surface-height measurements. In contrast, the recent Lunar Orbiter Laser Altimeter (LOLA) instrument on the Lunar Reconnaissance Orbiter (LRO) uses a non-scanning multi-beam system for surface topography mapping. The multi-beam instrument facilitates surface slope measurement and reduces the time-to-completion for global high-resolution topographic mapping. We discuss our first-year progress on a three-year swath-mapping laser-altimetry Instrument Incubator Program (IIP) funded by the NASA Earth Science Technology Office (ESTO). Our IIP is a technology development program supporting the LIdar Surface Topography (LIST) space-flight mission that is a third-tier mission as recommended by the National Research Council (NRC) for NASA's Earth Science programs.
Emergency Brake and Safety Measures of CRH_3 EMU (2011)

Design principles of emergency,brake of CRH3 EMU is introduced,triggering signal and its process are described in detail.
La régulation transcriptionnelle du gène MtENOD11 au cours des endosymbioses racinaires : caractérisation des éléments cis-régulateurs spécifiques de la réponse aux facteurs Nod (2006)

Nous avons realise une analyse fonctionnelle detaillee du promoteur du gene MtENOD11 au cours des infections endosymbiotiques et en reponse aux signaux specifiques secretes par Rhizobium appeles facteurs Nod (FNods) qui jouent un role cle dans l'etablissement de la syymbiose fixatrice d'azote. Nous avons identifie une region promotrice de 257 pb suffisante pour diriger une expression au cours de l'infection par Rhizobium, et de l'association endoymcorhizienne et lors de l'interaction parasitaire avec les nematodes a galles Meloidogyne incognita. Nous avons caracterise un motif riche en AT requis a la fois pour l'expression associee a l'infection par Rhizobium et par les endomycorhizes, montrant pour la premiere fois des mecanismes similaires de regulation lors des infections endosymbiotiques raciniares. Nous avons ensuite caracterise pour la premiere fois une unite regulatrice originale (appelee NF-box) suffisante pour conferer une expression dependante des FNods et epiderme-specifique. Nous avons egalement demontre qu'au moins trois sites de liaison de facteurs trans sont importants pour cette reponse. Enfin, nous avons initie des approches genes candidats et un criblage simple hybride chez la levure pour identifier les facteurs trans impliques dans l'activation de genes par les Fnods.
The cost of counting and identifying weed seeds and seedlings (1999)

Bioeconomic weed management models help growers achieve appropriate weed management with less herbicide by matching management to the weed population in a field. Growers, however, will not use bioeconomic models unless cost-effective methods to sample their weed populations are identified. Counting and identifying seeds and seedlings is the most time-consuming and costly part of sampling weed populations. The time required for this process was investigated and modeled as a first step in developing sampling plans for growers using WEEDCAM, a bioeconomic model for weed management in Zea mays L. in Colorado. The time required to count and identify seeds or seedlings was recorded for 9,405 soil cores (5 cm in diameter and 10 cm deep) and 9,726 quadrats (18-cm band over 1.52 m of crop row) collected or examined in eight corn fields in eastern Colorado. The time required to count and identify seeds was best described using a log-linear regression with time increasing with the number of seeds and species and the amount of sand in the core. The average cost of determining there are no seeds in a core is $1.07 for a core from a field with 37% sand and $4.32 if the field has 88% sand. The average cost of counting and identifying 36 seeds of four species is $2.70 and $10.88 for cores with 37 and 88% sand, respectively. The time required to count and identify seedlings was best described using a log-linear regression with time increasing with the number of seedlings and species. Classifying seedlings as grass or broadleaf did not improve the model. The average cost of determining that a quadrat is weed-free is $0.02. The average cost of counting and identifying 37 seedlings is $0.05, $0.07, $0.19, and $0.26 per quadrat for 1, 2, 4, and 6 species, respectively. The cost of identifying seeds and seedlings in eastern Colorado Z. mays fields to use WEEDCAM is estimated as $2.71 per core for the seed bank and $0.08 per quadrat for seedlings.
Fluorescence molecular tomography: new detection schemes for acquiring high information content measurements (2005)

We describe the implementation of new detection concepts based on highly spatial sampling and noncontact measurements for obtaining tomographic reconstructions of targeted fluorochromes with phantoms and in-vivo. This new approach can enable unprecedented experimental performance and simplicity compared to conventional tomographic systems.
APPLICATION OF INTELLIGENT METHODS IN COMMERCIAL WEBSITE MARKETING STRATEGIES DEVELOPMENT (2005)

Intelligent methods are widely applied in business, economical, financial, marketing and security aspects of e-commerce. The visitor is a vital element of eCommerce. Visitors’ sources, data mining methods, types and application of intelligent methods in eCommerce are overviewed in this article. Neural networks application in traffic statistics analysis and marketing strategies development is presented.
High-fat feeding alters both basal and stress-induced hypothalamic-pituitary-adrenal activity in the rat (1997)

High-fat feeding induces insulin resistance and increases the risk for the development of diabetes and coronary artery disease. Glucocorticoids exacerbate this hyperinsulinemic state, rendering an individual at further risk for chronic disease. The present studies were undertaken to determine whether dietary fat-induced increases in corticosterone (B) reflect alterations in the regulatory components of the hypothalamic-pituitary-adrenal (HPA) axis. Adult male rats were maintained on a high-fat (20%) or control (4%) diet for varying periods of time. Marked elevations in light-phase spontaneous basal B levels were evident as early as 7 days after fat diet onset, and B concentrations remained significantly elevated up to 21 days after fat diet onset compared with controls. In contrast, there were no significant effects on any parameters of spontaneous growth hormone secretory profiles, thus providing support for the specificity of the effects on the HPA axis. In a second study, all groups of rats fed the high-fat diet for 1, 9, or 12 wk exhibited significantly elevated levels of plasma adrenocorticotropic hormone, B, fatty acid, and glucose before, during, and/or at 20, 60, and/or 120 min after the termination of a restraint stress. Furthermore 12-wk fat-fed animals showed a significant resistance to insulin compared with normally fed controls. There were no differences in negative feedback efficacy in high-fat-fed rats vs. controls. Taken together, these results suggest that dietary fat intake acts as a background form of chronic stress, elevating basal B levels and enhancing HPA responses to stress.
Model Order Reduction for Water Quality Dynamics (2022)

Abstract A state‐space representation of water quality (WQ) dynamics describing disinfectant (e.g., chlorine) transport dynamics in drinking water distribution networks has been recently proposed. Such representation is a byproduct of space‐ and time‐discretization of the partial differential equations modeling transport dynamics. This results in a large state‐space dimension even for small networks with tens of nodes. Although such a state‐space model provides a model‐driven approach to predict WQ dynamics, incorporating it into model‐based control algorithms or state estimators for large networks is challenging and at times intractable. To that end, this paper investigates model order reduction (MOR) methods for WQ dynamics with the objective of performing post‐reduction feedback control. The presented investigation focuses on reducing state‐dimension by orders of magnitude, the stability of the MOR methods, and the application of these methods to model predictive control.
The Role of Cortical Geometry in the Nuclear Development of Tetrahymena thermophila (2000)

Vegetative cells were subjected to electrofusion and the resulting heteropolar doublets were then mated to normal single cells and followed throughout conjugation using cytological and genetic techniques. The unique cyto-geometry created in a heteropolar doublet--a continuous cytoplasmic compartment bounded by two anterior poles and sharing a fused posterior pole at midbody, and the potential for two conjugal exchange junctions--resulted in instructive perturbations of nuclear behavior. Our results indicate that the course of nuclear development is strongly dependent on the cortical geometry of conjugating cells. Specifically, 1) continuation of development after meiosis requires an established conjugal junction; 2) after pronuclear exchange, pronuclei are subjected to attractive forces; and 3) products of the second postzygotic division are actively positioned near the posterior region of the cell cortex where they develop into micronuclei.
Submodality distribution in sensorimotor cortex of the unanesthetized monkey (1981)

1. Neuronal responses to cutaneous and noncutaneous stimulation were examined in the hindlimb representation of the precentral motor cortex (MI) and the first somatosensory cortex (SI) of unanesthetized monkeys. 2. MI can be divided into two distinct parts of the basis of its afferent input. The rostral part receives predominantly noncutaneous inputs, while the cutaneous input is primarily confined to the caudal part of MI. Thus, a differential distribution of submodality groups exists in the MI cortex. Caudal to MI, area 3a responds mainly to stimulation of noncutaneous receptors, in marked contrast to the caudal part of MI or area 3b. 3. The finding of a differential distribution of cutaneous inputs within MI is of significance a) to hypotheses concerning the role of somatosensory input to the MI cortex, b) to studies that attempt to characterize somatosensory inputs to MI by the proportion of neurons responsive to cutaneous and noncutaneous stimulation, and c) in that they confirm and extend similar findings recently reported for the forelimb representation of an anesthetized New World monkey (43).
New boundary conditions for simulating the filling stage of the injection molding process (2020)

Purpose The purpose of this paper is to develop new boundary conditions for simulating the injection molding process of polymer melts. Design/methodology/approach The boundary conditions are derived and implemented to simulate real-life air vents (used to allow the air escape from the mold). The simulations are performed in the computational library OpenFOAM ® by considering two different fluid models, namely, Newtonian and generalized Newtonian (Bird–Carreau model). Findings A detailed study on the accuracy of the solver interFoam for simulating the filling stage is presented, by considering simple geometries and adaptive mesh refinement. The verified code is then used to study the three-dimensional filling of a more complex geometry. Originality/value The results obtained showed that the numerical method is stable and allows one to model the filling process, simulating the real injection molding process.
Supervised scaled regression clustering: an alternative to neural networks (2000)

Describes a method for the supervised training of regression systems that can be an alternative to feedforward artificial neural networks (ANNs) trained with the backpropagation algorithm. The proposed methodology is a hybrid structure based on supervised clustering with genetic algorithms and local learning. Supervised scaled regression clustering with genetic algorithms (SSRCGA) offers certain advantages related to robustness, generalization performance, feature selection, explanative behavior, and the additional flexibility of defining the fitness function and the regularization constraints. Computational results of SSRCGA are compared with backpropagation trained ANNs on a real-life environmental multivariate regression task.
Evaluating architecture and compiler design through static loop analysis (2013)

Using the MAQAO loop static analyzer, we characterize a corpus of binary loops extracted from common benchmark suits such as SPEC, NAS, etc. and several industrial applications. For each loop, MAQAO extracts low-level assembly features such as: integer and floating-point vectorization ratio, number of registers used and spill-fill, number of concurrent memory streams accessed, etc. The distributions of these features on a large representative code corpus can be used to evaluate compilers and architectures and tune them for the most frequently used assembly patterns. In this paper, we present the MAQAO loop analyzer and a characterization of the 4857 binary loops. We evaluate register allocation and vectorization on two compilers and propose a method to tune loop buffer size and stream prefetcher based on static analysis of benchmarks.
Tocotrienols and cancer: Beyond antioxidant activity (2007)

Abstract The edible oil industry has emerged as an important provider of raw material for the extraction of vitamin E. Vegetable oils, especially the seed oils, are rich sources of tocopherols. However, in palm oil, vitamin E occurs as a complex mixture of tocopherols and tocotrienols. Various tocotrienol isomers of vitamin E in palm oil have been reported to possess interesting biological and physiological properties not generally evident with tocopherol‐rich vitamin E preparations. They include potential blood cholesterol‐lowering and cardioprotective effects, more efficient antioxidant activity in biological systems, and possible anti‐cancer and neuroprotective effects. With the emergence of palm oil as the largest edible oil in world markets, technology is now available to extract tocotrienol‐rich palm vitamin E. Initiatives in Malaysia to manufacture biodiesel will further generate large amounts of micronutrients, especially tocotrienols, to be available to the nutraceutical and functional food industry.
Thermoelectric Properties of Ruddlesden–Popper Phase n ‐Type Semiconducting Oxides: La‐, Nd‐, and Nb‐Doped Sr 3 Ti 2 O 7 (2007)

We report herein on Ruddlesden–Popper‐type doped Sr n +1 Ti n O 3 n +1 ( n =2) as a potential candidate for n ‐type thermoelectric (TE) oxides. The TE properties of 5 at.% La‐, Nd‐, and Nb‐doped Sr 3 Ti 2 O 7 polycrystalline ceramics were investigated and the origin of Seebeck coefficient was discussed from the viewpoint of the symmetry of TiO 6 octahedra. A significant reduction in the lattice thermal conductivity was observed by the enhancement of phonon scattering at SrO/(SrTiO 3 ) n interfaces originating from the inherent superlattice structure, and the maximum dimensionless figure of merit, ZT ∼0.15, at a 1000 K value was obtained in 5 at.% La‐doped Sr 3 Ti 2 O 7 .
Translocation t(17;18)(q10;q10) (2001)

A new nonrandom chromosomal translocation t(17;18)(q10,q10) is described in association with chronic myeloid leukemia (CML) in transformation. Its implication in relation to discovering new molecular events association with CML transformation is discussed.
Sld2 binds to origin single-stranded DNA and stimulates DNA annealing (2010)

Sld2 is essential for the initiation of DNA replication, but the mechanism underlying its role in replication is not fully understood. The S-phase cyclin dependent kinase (S-CDK) triggers the association of Sld2 with Dpb11, and a phosphomimetic mutation of Sld2, Sld2T84D, functionally mimics the S-CDK phosphorylated state of Sld2. We report that Sld2T84D binds directly to the single-stranded (ss) DNA of two different origins of replication, and S-CDK phosphorylation of Sld2 stimulates the binding of Sld2 to origin ssDNA. Sld2T84D binds to a thymine-rich ssDNA region of the origin ARS1, and substitution of ARS1 thymines with adenines completely disrupts binding of Sld2T84D. Sld2T84D enhances the ability of origin ssDNA to pulldown Dpb11, and Sld2 binding to origin ssDNA may be important to allow Sld2 and Dpb11 to associate with origin DNA. We also report that Sld2T84D anneals ssDNA of an origin sequence. Dpb11 anneals ssDNA to low levels, and the addition of Sld2T84D with Dpb11 results in higher annealing activity than that of either protein alone. Sld2-stimulated annealing may be important for maintaining genome stability during the initiation of DNA replication.