gebhart/patrepeval huggingface dataset:
Development of antenna system for S-band mobile satellite communications and broadcasting (2002)

Advanced Space Communications Research Laboratory is studying an antenna system for future S-band mobile satellite communication and broadcasting. This system uses a GEO satellite and is composed of a large deployable satellite antenna with a 10 m diameter mesh reflector and a mobile antenna for vehicles and hand-held terminals. In this paper, we present our deployable satellite antenna program and discuss the radiation characteristics of the antenna. These characteristics include a shaped multibeam synthesis for communications, and a shaped beam synthesis for broadcasting. We also describe a switching plane array antenna for vehicles.
Real‐time three‐dimensional imaging of cell division by differential interference contrast microscopy (2008)

Differential interference contrast (DIC) microscopy can provide information about subcellular components and organelles inside living cells. Applicability to date, however, has been limited to 2D imaging. Unfortunately, understanding of cellular dynamics is difficult to extract from these single optical sections. We demonstrate here that 3D differential interference contrast microscopy has sub-diffraction limit resolution both laterally and vertically, and can be used for following Madin Darby canine kidney cell division process in real time. This is made possible by optimization of the microscope optics and by incorporating computer-controlled vertical scanning of the microscope stage.
Conversion of a Partial Removable Dental Prosthesis from Kennedy Class II to Class III Using a Dental Implant and Semiprecision Attachments (2011)

This article presents a design to convert a partial removable dental prosthesis (PRDP) from Kennedy class II to class III using a dental implant. Incorporating semiprecision attachments, this design provides desired esthetics, phonetics, and function.
Physiology, a popular account of the functions of the human body; by Dr. Andrew Wilson ... Illustrated. (1910)

most part must be directed to ascertaining first, man's place in nature ; second, the particular build of the frame he owns.MAN'S PLACE IN NATURE.Man stands at the head of the animal kingdom, and as such becomes in turn the chief figure in the class of animals popularly known as " quadrupeds " and scientifically as "mammalia."In turn, this class forms one of the five divisions of the type of animals known as Vertebrates, or " back-boned " forms.In all of these
Employing Minority Games in self-organizing wireless networks: Dynamic channel allocation (2016)

Designing distributed protocols with limited requirements for exchange of feedback information between the nodes is a key element in the development of cognitive and self-organizing ad hoc networks. We argue that the Minority Game (MG) and its variations can constitute useful tools towards this direction. In particular, the MG formulation is well suited for addressing a variety of resource allocation problems in self-organizing wireless networks. In this paper we illustrate the employment of MGs by presenting a paradigm of an MG-based model for dynamic channel allocation.
CaCO3/Chitin hybrids: recombinant acidic peptides based on a peptide extracted from the exoskeleton of a crayfish controls the structures of the hybrids (2012)

Functional peptides play an important role in the formation of biominerals. Here we focus on peptides involved in mineralization of the exoskeleton of a crayfish. New recombinant peptides are designed and synthesized on the basis of an acidic functional peptide, CAP-1, derived from the exoskeleton of a crayfish. We have examined the effect of these peptides on the hybrid formation of calcium carbonate and organic molecules in aqueous solution. In the presence of these recombinant peptides having chitin binding moieties, platelike tripodal calcite crystals are formed on the chitin matrix with unidirectional crystallographic orientation. Two kinds of interactions, (1) interactions between an acidic part of the peptides and calcium ions and (2) specific binding interactions of the peptides to chitin, are essential for the formation of the oriented crystals and the induction of specific morphologies. Moreover, the sizes of crystallites decrease with increasing the number of acidic parts of mutational peptides. The bioinspired design of peptides that control the interface of inorganic and organic domains may pave the way for an opportunity to build new hybrid structures.
Testing Behling and McFillen’s Syncretical Model of Charismatic Transformational Leadership (2006)

This study examines charismatic transformational leadership behaviors, follower beliefs, and organizational commitment. It tests the mediational relationships hypothesized by Behling and McFillen’s Syncretical Model of Charismatic Transformational Leadership. Self-report questionnaires were completed by 178 followers, relating to 29 leaders in 17 organizations. Mediational analyses found that the follower beliefs of awe and inspiration mediated the effect of charismatic transformational leader behaviors on commitment, although not in the pattern predicted by Behling and McFillen. A structural equation model suggested that awe and inspiration, but not empowerment, mediated the effect of leader behaviors on commitment, with leader behaviors being most strongly related to the follower belief of awe, and commitment being most strongly related to the follower belief of inspiration.
Array size scalability of passively coherently phased fiber laser arrays (2010)

We explore, by means of experiments and simulation, the power combining efficiency and power fluctuation of coherently phased 2, 4, 6, 8, 10, 12, 14, 16-channel fiber-laser arrays using fused 50:50 single-mode couplers. The measured evolution of power combining efficiency with array size agrees with simulations based on a new propagation model. For our particular system the power fluctuations due to small wavelength-scale length variations are seen to scale with array size as N(3). Beat spectra support the notion that a lack of coherently-combined supermodes in arrays of increasing size leads to a decrease in combined-power efficiency.
Analysis of Dynamic Memory Bandwidth Regulation in Multi-core Real-Time\n Systems (2018)

One of the primary sources of unpredictability in modern multi-core embedded\nsystems is contention over shared memory resources, such as caches,\ninterconnects, and DRAM. Despite significant achievements in the design and\nanalysis of multi-core systems, there is a need for a theoretical framework\nthat can be used to reason on the worst-case behavior of real-time workload\nwhen both processors and memory resources are subject to scheduling decisions.\n In this paper, we focus our attention on dynamic allocation of main memory\nbandwidth. In particular, we study how to determine the worst-case response\ntime of tasks spanning through a sequence of time intervals, each with a\ndifferent bandwidth-to-core assignment. We show that the response time\ncomputation can be reduced to a maximization problem over assignment of memory\nrequests to different time intervals, and we provide an efficient way to solve\nsuch problem. As a case study, we then demonstrate how our proposed analysis\ncan be used to improve the schedulability of Integrated Modular Avionics\nsystems in the presence of memory-intensive workload.\n
<title>Optimization-based manufacturing scheduling with multiple resources and setup requirements</title> (1998)

The increasing demand for on-time delivery and low price forces manufacturer to seek effective schedules to improve coordination of multiple resources and to reduce product internal costs associated with labor, setup and inventory. This study describes the design and implementation of a scheduling system for J. M. Product Inc. whose manufacturing is characterized by the need to simultaneously consider machines and operators while an operator may attend several operations at the same time, and the presence of machines requiring significant setup times. The scheduling problem with these characteristics are typical for many manufacturers, very difficult to be handled, and have not been adequately addressed in the literature. In this study, both machine and operators are modeled as resources with finite capacities to obtain efficient coordination between them, and an operator's time can be shared by several operations at the same time to make full use of the operator. Setups are explicitly modeled following our previous work, with additional penalties on excessive setups to reduce setup costs and avoid possible scraps. An integer formulation with a separable structure is developed to maximize on-time delivery of products, low inventory and small number of setups. Within the Lagrangian relaxation framework, the problem is decomposed into individual subproblems that are effectively solved by using dynamic programming with additional penalties embedded in state transitions. Heuristics is then developed to obtain a feasible schedule following on our previous work with new mechanism to satisfy operator capacity constraints. The method has been implemented using the object-oriented programming language C++ with a user-friendly interface, and numerical testing shows that the method generates high quality schedules in a timely fashion. Through simultaneous consideration of machines and operators, machines and operators are well coordinated to facilitate the smooth flow of parts through the system. The explicit modeling of setups and the associated penalties let parts with same setup requirements clustered together to avoid excessive setups.
The anaphylatoxin C3a downregulates the Th2 response to epicutaneously introduced antigen (2004)

Mechanical injury to the skin results in activation of the complement component C3 and release of the anaphylatoxin C3a. C3a binds to a seven-transmembrane G protein-coupled receptor, C3aR. We used C3aR(-/-) mice to examine the role of C3a in a mouse model of allergic inflammation induced by epicutaneous sensitization with OVA. C3aR(-/-) mice exhibited an exaggerated Th2 response to epicutaneous but not to intraperitoneal sensitization with OVA, as evidenced by significantly elevated levels of serum OVA-specific IgG1 and significantly increased secretion of the Th2 cytokines IL-4, IL-5, and IL-10 by antigen-stimulated splenocytes. Presentation of OVA peptide by C3aR(-/-) APCs caused significantly more IL-4 and IL-5 secretion by T cells from OVA-T cell receptor (OVA-TCR) transgenic mice compared with presentation by WT APCs. C3a inhibited the ability of splenocytes, but not of highly purified T cells, to secrete Th2 cytokines in response to TCR ligation. This inhibition was mediated by IL-12 secreted by APCs in response to C3a. These results suggest that C3a-C3aR interactions inhibit the ability of APCs to drive Th2 cell differentiation in response to epicutaneously introduced antigen and may have important implications for allergic skin diseases.
Is There a Linewidth Theory for Semiconductor Lasers? (2007)

Laser generation begins at a critical injection when the gain and loss spectra touch each other at a singular frequency. In the framework of the standard theory, the finite linewidth results from the account of fluctuations associated with the random spontaneous emission processes. This approach is based on the assumption that in the meanfield approximation the singular frequency generation persists for injection levels higher than critical. We show that this assumption in the framework of the Boltzmann kinetic equation for electrons and photons is invalid and therefore the standard description of semiconductor laser linewidth lacks theoretical foundation. Experimental support of the standard theory is also questionable.
Onderzoek naar effecten van bepaalde stoffen op het alcoholslot (2014)

Ieder jaar vallen er doden en gewonden in het verkeer bij ongevallen waarbij alcohol in het spel is. Het alcoholslotprogramma draagt bij aan het omlaag brengen van het aantal verkeersslachtoffers en is bedoeld voor bestuurders die met te veel alcohol op aan het verkeer hebben deelgenomen. Als onderdeel van het programma wordt een alcoholslot in het voertuig van deelnemers ingebouwd zodat zij leren omgaan met alcohol en verkeer. Bij toepassing van het alcoholslot kan het voertuig niet gestart worden voordat een geldige ademtest is afgelegd, ook kan onderweg door het apparaat om hertesten gevraagd worden. Omdat het alcoholslot mogelijk niet alleen het gebruik van ethanol detecteert maar ook melding zou kunnen geven na gebruik van andere stoffen is onderzoek gedaan naar het ontstaan van vals-positieve meetresultaten van het alcoholslot.
Sim-to-Real Learning of All Common Bipedal Gaits via Periodic Reward\n Composition (2020)

We study the problem of realizing the full spectrum of bipedal locomotion on\na real robot with sim-to-real reinforcement learning (RL). A key challenge of\nlearning legged locomotion is describing different gaits, via reward functions,\nin a way that is intuitive for the designer and specific enough to reliably\nlearn the gait across different initial random seeds or hyperparameters. A\ncommon approach is to use reference motions (e.g. trajectories of joint\npositions) to guide learning. However, finding high-quality reference motions\ncan be difficult and the trajectories themselves narrowly constrain the space\nof learned motion. At the other extreme, reference-free reward functions are\noften underspecified (e.g. move forward) leading to massive variance in policy\nbehavior, or are the product of significant reward-shaping via trial-and-error,\nmaking them exclusive to specific gaits. In this work, we propose a\nreward-specification framework based on composing simple probabilistic periodic\ncosts on basic forces and velocities. We instantiate this framework to define a\nparametric reward function with intuitive settings for all common bipedal gaits\n- standing, walking, hopping, running, and skipping. Using this function we\ndemonstrate successful sim-to-real transfer of the learned gaits to the bipedal\nrobot Cassie, as well as a generic policy that can transition between all of\nthe two-beat gaits.\n
Discovery of Multicomponent Heterogeneous Catalysts via Admixture Screening: PdBiTe Catalysts for Aerobic Oxidative Esterification of Primary Alcohols (2017)

In the present study, we demonstrate the utility of "admixture screening" for the discovery of new multicomponent heterogeneous Pd catalyst compositions that are highly effective for aerobic oxidative methyl esterification of primary alcohols. The identification of possible catalysts for this reaction was initiated by the screening of simple binary and ternary admixtures of Pd/charcoal in combination with one or two metal and/or metalloid components as the catalyst. This approach permitted rapid evaluation of over 400 admixture combinations for the oxidative methyl esterification of 1-octanol at 60 °C in methanol. Product yields from these reactions varied widely, ranging from 2% to 88%. The highest yields were observed with Bi-, Te-, and Pb-based additives, and particularly from those containing both Bi and Te. Validation of the results was achieved by preparing specific PdBiTe catalyst formulations via a wet-impregnation method, followed by application of response surface methodology to identify the optimal Pd-Bi-Te catalyst stoichiometry. This approach revealed two very effective catalyst compositions: PdBi<sub>0.47</sub>Te<sub>0.09</sub>/C (PBT-1) and PdBi<sub>0.35</sub>Te<sub>0.23</sub>/C (PBT-2). The former catalyst was used in batch aerobic oxidation reactions with different primary alcohols and shown to be compatible with substrates bearing heterocycle and halide substituents. The methyl ester products were obtained in >90% yield in nearly all cases. Implementation of the PBT-2 catalyst in a continuous-flow packed-bed reactor achieved nearly 60 000 turnovers with no apparent loss of catalytic activity.
Preparation of asymmetric film by blending two kinds of polymer emulsions having greatly different storage stabilities (1991)

Abstract Two kinds of anionic polymer emulsions with different particle sizes were blended and cast on a release‐paper at 30°C. One was poly(butyl acrylate) emulsion, and the other was ethyl acrylate–methyl methacrylate (1 : 1, weight ratio) copolymer emulsion. They were produced by emulsifier‐free emulsion polymerization. The blend films prepared in an appropriate range of the blend ratio had a great difference in tackiness between both surfaces: The air‐side surface exhibited tackiness and the release‐paper side showed nontackiness. The forming mechanism is discussed.
Insertional mutagenesis inducing hypomyelination in transgenic mice (1994)

Investigations of myelin disorders, in particular multiple sclerosis (MS), have concentrated on immunemediated damage to formed myelin, while there has been less emphasis on the molecular genetics of myelin formation. We have generated a transgenic mouse mutant (designated 2-50) which carries an insertional mutation in a locus regulating myelination. These mice carry a transgene comprising 1.3 Kb of the mouse myelin basic protein (MBP) promoter conjugated to a fragment containing exons 2 and 3 of the human c-myc gene. Positive mice show a significant reduction in myelin compared to controls and a shivering phenotype. Unlike other myelin mutants, all 2-50 mice lose the shivering phenotype and breed normally. Expression of c-myc is detectable in only 65% of transgene-carrying mice, and when present occurs at extremely low levels. This shows that the phenotype is caused by insertional inactivation of a gene necessary for myelination rather than ectopic expression of the transgene. The transgene was found by in situ hybridization to be inserted into a single site which is very distally located on chromosome 9. The 2-50 mice represent a unique model which will be ideal for investigating the molecular basis of myelin assembly and for developing gene therapy to promote remyelination in conditions such as MS.
A Modified Curcumin Method for Determining Trace Amounts of Boron (1975)

This article presents a new and improved method for determining trace amounts of boron in water in the range of 0.25–1.00 mg/l. The modified method is purportedly more rapid, more precise, and less involved than the standard curcumim method.
Distorted five-coordinate cobalt(II). Structure of bromotris(3-aminopropyl)aminecobalt(II) bromide hemiethanolate (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDistorted five-coordinate cobalt(II). Structure of bromotris(3-aminopropyl)aminecobalt(II) bromide hemiethanolateKenneth N. Raymond and John L. ShaferCite this: Inorg. Chem. 1971, 10, 8, 1799–1803Publication Date (Print):August 1, 1971Publication History Published online1 May 2002Published inissue 1 August 1971https://doi.org/10.1021/ic50102a053RIGHTS & PERMISSIONSArticle Views100Altmetric-Citations20LEARN 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 (690 KB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Dissolved Oxygen Control in the Activated Sludge Process (1988)

The increased cost of energy and the need for biological removal of plant nutrients resulted in a renewed interest in dissolved oxygen control in the activated sludge process. Back-up systems are required to prevent overaeration during the night which may be detrimental to the nutrient removal process. Full-scale experience with both fine bubble and surface aerators are described.
Normal and collapsed trachea in the dog: Scanning electron microscopy study (1985)

Scanning electron microscopy was used to examine canine tracheal cartilage and to determine the relationship between the fibrous and amorphous matrix in this tissue. Collapsed tracheal (CT) cartilage was hypocellular, compared with normal tracheal cartilage. The amorphous matrix of CT cartilage had a porous, fissured texture and did not have the homogeneous appearance of normal tracheal cartilage. Capillaries were seen to pass through CT cartilage. Randomly distributed connective tissue fibers, evident in CT cartilage matrix, were frequently attached to irregular shapes and sizes of amorphous matrix.
Abstract 1946: Identification of miRNAs that contribute to melanoma brain metastasis (2010)

Abstract Brain metastasis occurs in a large proportion of metastatic melanoma patients and is associated with a dismal prognosis. However, the molecular mechanisms that govern melanoma tropism to the brain remain poorly understood. MicroRNAs (miRNAs) play essential roles in many physiological and pathological processes, and have been recently shown to exert key roles during cancer metastasis. In this study we find that specific miRNAs may be important mediators of melanoma dissemination to the brain. First, we conducted a miRNA microarray analysis of metastatic melanoma tissues that revealed a subset of miRNAs differentially expressed in brain metastases (n=11) relative to other sites (n=48). A brain-specific signature comprised of seven miRNAs was further validated in an independent cohort of metastatic melanoma samples (n=36; 9 brain metastatic specimens). Then, we analyzed the trend of expression of those miRNAs during tumor progression by comparing their levels in primary tumors and their paired metastasis from patients with or without recurrence in the brain (n=18). Differential expression of some miRNAs was already evident at diagnosis in primary tumors that recurred in the brain, while for others it was acquired in the transition from primary to metastasis, suggesting that it may be a later event in tumor progression. Furthermore, in vitro modulation of specific signature miRNAs significantly altered the ability of melanoma cells to execute processes such as adhesion and transmigration through human brain endothelial cells and proliferation in human astrocytes conditioned media. Additionally, using an in vivo model of melanoma brain metastasis, we confirmed the capacity of specific miRNA alterations to promote melanoma cells’ competence to reach the brain. Finally, the analysis of potential downstream mediators of select miRNAs revealed the involvement of immuno-suppressive molecules, as well as inflammatory and chemotactic mediators in this process. Collectively, our results expand our understanding of the mechanisms that control melanoma brain metastasis, potentially revealing novel therapeutic avenues for patients for whom no viable approaches are currently available. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 1946.