gebhart/patrepeval huggingface dataset:
Canadian Advanced Nanospace Experiment 2 Orbit Operations: One Year of Pushing the Nanosatellite Performance Envelope (2009)

The objective of the Canadian Advanced Nanospace eXperiment (CanX) program is to develop highly capable nanospacecraft, i.e. spacecraft under 10 kilograms, in short timeframes of 2-3 years. CanX missions offer low-cost and rapid access to space for scientists, technology developers and operationally-responsive missions. The Space Flight Laboratory (SFL), at the University of Toronto Institute for Aerospace Studies (UTIAS) has developed the CanX-2 nanosatellite that launched in April 2008. CanX-2, a 3.5-kg, 10 x 10 x 34 cm satellite, features a collection of scientific and engineering payloads that push the envelope of capability for this class of spacecraft. The primary mission of CanX-2 is to test and demonstrate several enabling technologies for precise formation flight. These technologies include a custom cold-gas propulsion system, a 30 mN·m·s nanosatellite reaction wheel as part of a three-axis stabilized Y thomson-configuration attitude control subsystem, and a commercially available GPS receiver. The secondary objective of CanX-2 is to perform a number of university experiments including an atmospheric spectrometer. After one successful year in orbit, the nanosatellite has met or exceeded all mission objectives and continues to demonstrate the cost-effective capabilities of this class of spacecraft. Key achievements to date include a characterization of the propulsion system, a full demonstration of the attitude determination and control subsystem including capabilities in accurate payload pointing (including nadir-tracking) and orbit-normal alignment, long-duration reaction wheel operation, unprecedented radio performance for an operational nanosatellite, and successful science operations. The mission, the engineering and scientific payloads, and a discussion of notable orbit achievements and experiences of CanX-2 are presented in this paper.
Effects of interfacial oxide on hot carrier reliability of polysilicon emitter npn transistors (1993)

The results of reverse emitter-base stress testing of polysilicon emitter bipolar transistors with various process options is described. Variations in interfacial oxide whether from pre-deposition cleans or controlled thin oxide growth have a major effect. Significant improvement to hot carrier stress is achieved by elimination of the interfacial oxide. Degradation rates increase with thicker interfacial oxide. Anneal conditions (RTA vs. furnace) appear to have less impact although the furnace results are generally better. Since interfacial oxide suppresses base current and increases hfe, selection of process options represents a tradeoff between performance and reliability.
Finite element analysis of clay reinforced with geogrid encapsulated in thin layers of sand (2016)

Reinforced Granular Beds are often used to support foundations on weak soils and low lying areas. But now granular soils have become very scarce and it makes reinforced soil technique uneconomical. The cost effective option is to reinforce the locally available soil with suitable geosynthetics. But the effectiveness of reinforcement embedded in clayey soil is very less when compared with granular soil. This paper investigates the possibility of reinforcing the locally available clayey soil with geogrid encapsulated in thin layer of sand by carrying out a series of finite element analyses using the software PLAXIS 2D. The parameters studied are the effects of thickness of thin granular layer and its depth below the base of footing. The results of the finite element analyses indicate that bearing capacity of clay can be improved considerably by reinforcing with geogrid embedded in thin layer of sand. It is observed that the normal and shear stresses at the interface between sand and clay are considerably influenced by the thickness of sand layer.
FPGA-Based Real-Time SLAM (2017)

This project created a proof of concept SLAM sensor suite capable of remotely observing and mapping areas by combining real-time stereo camera imagery with distance measurements and localization data to generate a 3D depth map and 2D floorplan of its environment. The system used a Xilinx Zynq SoC containing an embedded ARM processor and FPGA fabric, and implemented unique SLAM processing functionality using both embedded software and parallelized custom logic.
BGPsec Protocol Specification (2017)

This document describes BGPsec, an extension to the Border Gateway
Protocol (BGP) that provides security for the path of Autonomous
Systems (ASes) through which a BGP UPDATE message passes. BGPsec is
implemented via an optional non-transitive BGP path attribute that
carries digital signatures produced by each AS that propagates the
UPDATE message. The digital signatures provide confidence that every
AS on the path of ASes listed in the UPDATE message has explicitly
authorized the advertisement of the route.
Tyrosine phosphorylation is required for activation of an alpha interferon-stimulated transcription factor. (1992)

The signal transduction pathway of alpha interferon utilizes tyrosine phosphorylation to transmit a signal generated at the cell surface to the transcriptional machinery in the nucleus. Activation of the interferon pathway initiates with the binding of alpha interferon to its cell surface receptor. The ligand-receptor complex signals the activation of a latent cytoplasmic transcription factor. The active form of the interferon-stimulated gene factor (ISGF3) is phosphorylated on tyrosine residues. ISGF3 subsequently translocates to the nucleus and binds to a DNA sequence, the interferon-stimulated response element, found within the promoter of inducible genes. ISGF3 is a multicomponent factor consisting of four proteins of 113 kDa, 91 kDa, 84 kDa, and 48 kDa. Three proteins consistent with sizes of 113 kDa, 91 kDa, and 84 kDa copurify with ISGF3 and are phosphorylated on tyrosine residues after stimulation by alpha interferon. Tyrosine phosphorylation is essential for activation of ISGF3. Genistein, a tyrosine kinase inhibitor, blocks the appearance of ISGF3 and blocks the transcriptional stimulation of interferon-induced genes. This study shows that tyrosine phosphorylation provides a link between the interferon-receptor complex at the plasma membrane and specific activation of gene expression in the nucleus.
Effects of Geometric Parameters on the Pin-bearing Strength of Glass/Polyphenylenesulphide Composites (2009)

In this experimental study, under conditions of static loading, load-bearing performance of pin connected multilayered (angle-ply) glass fiber-reinforced polyphenylenesulphide matrix composites with [(0 ° /90 ° )] 4s and [(0 ° /90 ° )/ (+/—45 ° )] 2s stacking sequence was analyzed. The experiments were carried out according to the ASTM D953. The ratio of the distance between pin center and sample end, to pin diameter E/D; and the ratio of sample width to pin diameter W/D, were changed systematically during the experiments. From the results of the experiment, maximum bearing failure loads were obtained for [(0 ° /90 ° )/(+/—45 ° )] 2s lay-up with geometric parameters of D = 10 mm and W/D = 2. Macro images belonging to failure modes, which occurred as results of the tests were examined. In addition to this, from the fractographic examinations carried out with scanning electron microscope, it was concluded that the geometric parameters intimately affect fracture morphology.
Application of analytic hierarchy process (AHP) to measure the complexity of the business sector and business software (2010)

The paper shows a proposition of metrics for measuring the complexity of the business sector and business software. The metrics is based on a subjective estimation of complexity of the elements from the structure of business sector or business software, and reaching conclusions on the final complexity through the Analytic Hierarchy Process (AHP). Defined in this manner, the metrics represents a unique metrics for measuring the complexity of elements of business sector and business software, which enables their comparison. Due to this, the paper also shows possible situations between the measured complexities. The paper also presents a short overview of existing metrics for measuring the complexity of business sectors and business software.
Identification of the bacterial endosymbionts in leaf galls of Psychotria (Rubiaceae, angiosperms) and proposal of 'Candidatus Burkholderia kirkii' sp. nov (2002)

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.
The primary structure of rat ribosomal protein S8 (1987)

The amino acid sequence of rat ribosomal protein S8 was deduced from the sequence of nucleotides in a recombinant cDNA and confirmed from the NH2- and carboxyl-terminal amino acid sequences of the protein. Ribosomal protein S8 contains 207 amino acids (the NH2-terminal methionine is removed after translation of the mRNA) and has a molecular weight of 23,928. Hybridization of the cDNA to digests of nuclear DNA suggests that there are 7-9 copies of the S8 gene. Ribosomal protein S8 contains a possible internal repeat that has 12 or 13 residues, is basic, and occurs 5 times in the protein.
The role of free radicals and plasmatic antioxidant in Ménière's syndrome. (2003)

The objective of this study was verification, through suitable hematochemical tests, of the supposition that central-systemic microtoxicosis plays a role either in the etiopathogenesis of Ménière's syndrome or in labyrinthine pathological processes or hypoacusis. We did not, therefore, exclude other well-known hypotheses in the causality of these pathologies. Nonetheless, one finds, particularly in the Ménière's cases, a constant homogeneous distribution of the metabolic products of this microtoxicosis, such as a high concentration of free radicals and low natural defenses (e.g., antioxidant plasmatic capacity). Therefore, there exists a kind of dangerous central and systemic presence of reactive molecules, aimed toward the polyunsaturated fatty acids and homeostatic complex enzymes, that is not compensated for by the natural antioxidant defense. The presence of this lack of balance, verified by suitable tests, has shown the rationality of use of a product made from reduced glutathione, thioctic acid, cysteine, and other antioxidants as a multipurpose antidote to this element of etiopathogenesis. Patients were divided into three groups (control, conventional therapy, and antioxidant treatment), and those in the antioxidant treatment group, especially those with Ménière's syndrome, demonstrated a net and more significant improvement. Also, parallel clinical and instrument evaluations of this new therapeutic solution, the efficacy of which has already been positively demonstrated, are expected to provide further evidence to support the primary hypothesis.
Query ReFormulation on the internet: empirical data and the hyperindex search engine (1997)

Often queries to Internet search engines consist of one or two terms. As a consequence, the effectiveness of the retrieval suffers. This paper describes an internet search engine that helps the user formulate their query by a process of navigation through a structured, automatically constructed, information space called a hyperindex. In the first part of this paper, the logs of an internet search engine were analyzed to determine the proportions with which different types of query transformation occur. It was found that the primary transformation type was repetition of the previous query. Users also substitute, add and delete terms from a previous query and with lower frequency split compound terms, make changes to spelling, punctuation, and case and use derivative forms of words and abbreviations. The second part of the paper details the hyperindex - which aids the user in query term addition, deletion and substitution. The architecture of a hyperindex-based internet search engine is ...
Characterization and Stability of Various Liposome-Encapsulated Enoxacin Formulations. (1997)

The necessity for antibacterial agents with greater intracellular efficacy has led to the development of endocytosable drug carriers such as liposomes. Enoxacin was selected as a model drug incorporated in various liposome formulations as a therapeutic dosage form using the ethanol injection method and freeze-drying. Liposomal behavior after preparation and stability test was characterized by determining the physicochemical properties of enoxacin encapsulation percent, vesicle size and turbidity. The non-phospholipid formulation of stratum corneum liposomes showed the highest encapsulation efficiency after preparation among nine liposomal formulations. The addition of dissacharides in liposomes also enhanced the encapsulation of enoxacin due to the protection of phospholipid bilayers during the freeze-drying process. The liposomes with negatively charged component and dissacharides showed lower enoxacin leakage after five weeks of storage at 45 degrees C, suggesting these formulations have high stability in long-term storage. The negative liposomes showed a different behavior than others in their decrease of size and turbidity during storage, possibly due to high surface charges of the negative formulation. Cholesterol stabilized bilayers interacted with plasma and high density lipoprotein (HDL) retained enoxacin in the vesicles. Nevertheless, liposomes with cholesterol caused a hydrolysis problem after incubation with normal saline. The formulation with trehalose not only showed high stability in storage but also in plasma and HDL. This suggested trehalose was useful to incorporate with phospholipids to produce a highly encapsulated and stabilized liposomes of enoxacin. This study also demonstrated that thought is required in utilizing turbidity as a direct index of liposomal vesicle size.
Image-based red cell counting for wild animals blood (2010)

An image-based red blood cell (RBC) automatic counting system is presented for wild animals blood analysis. Images with 2048×1536-pixel resolution acquired on an optical microscope using Neubauer chambers are used to evaluate RBC counting for three animal species (Leopardus pardalis, Cebus apella and Nasua nasua) and the error found using the proposed method is similar to that obtained for inter observer visual counting method, i.e., around 10%. Smaller errors (e.g., 3%) can be obtained in regions with less grid artifacts. These promising results allow the use of the proposed method either as a complete automatic counting tool in laboratories for wild animal's blood analysis or as a first counting stage in a semi-automatic counting tool.
Assessment for Deaths in Out‐of‐hospital Heroin Overdose Patients Treated with Naloxone Who Refuse Transport (2003)

Abstract Naloxone frequently is used to treat suspected heroin and opioid overdoses in the out‐of‐hospital setting. The authors' emergency medical services system has operated a policy of allowing these patients, when successfully treated, to sign out against medical advice (AMA) in the field. Objectives: To evaluate the safety of this AMA policy. Methods: This is a retrospective review of out‐of‐hospital and medical examiner (ME) databases over a five‐year period. The authors reviewed all ME cases in which opioid overdoses were listed as contributing to the cause of death. These cases were cross‐compared with all patients who received naloxone by field paramedics and then refused transport. The charts were reviewed by dates, times, age, sex, location, and ethnicity when available. Results: There were 998 out‐of‐hospital patients who received naloxone and refused further treatment and 601 ME cases of opioid overdose deaths. When compared by age, time, date, sex, location, and ethnicity, there were no cases in which a patient was treated by paramedics with naloxone within 12 hours of being found dead of an opioid overdose. Conclusions: Giving naloxone to patients with heroin overdoses in the field and then allowing them to sign out AMA resulted in no identifiable deaths within this study population.
Modified Activated Carbon for Gas Phase Synthesis of Dimethyl Carbonate (2011)

Study of activated carbon (AC) activator modified type, bore temperature, the ratio of the response activity. Optimized modified conditions: activator of CuCl2, a temperature of 800 °C, the AC activator ratio of 1:1. AC carrier prepared by reaming modified copper catalyst activity than the non-reaming significantly increased activity in the evaluation of typical conditions, the methanol conversion rate of 34.6%, DMC selectivity was 96.4%, DMC space-time yield was 221.1g / (kgcat • h). CuCl2 activation of AC in the pore distribution of modified ratio of 98%, mainly between the 2 ~ 3nm. Pore ​​structure of the catalyst carrier has a significant effect on the activity, a larger proportion of the pore size distribution and pore size of about 2.5 nm in the AC carrier is conducive to the dispersion of active components and oxidative carbonylation catalytic activity increased.
Extraterrestrial consumables production and utilization (1972)

Potential oxygen requirements for lunar-surface, lunar-orbit, and planetary missions are presented with emphasis on: (1) emergency survival of the crew, (2) provision of energy consumables for vehicles, and (3) nondependency on an earth supply of oxygen. Although many extraterrestrial resource processes are analytically feasible, this study has considered hydrogen and fluorine processing concepts to obtain oxygen or water (or both). The results are quite encouraging and are extrapolatable to other processes. Preliminary mission planning and sequencing analysis has enabled the programmatic evaluation of using lunar-derived oxygen relative to transportation cost as a function of vehicle delivery and operational capability.
Coagulation of the Blood (1955)

This chapter contains sections titled: Introduction Purification Work Formation of Fibrin Prothrombin Activation Ac-globulin Unclassified Activators of Prothrombin Platelets Platelet Cofactor II (Plasma Thromoboplastin Component) Equilibrium Conditions in Trace Protien Interaction Antithrombin Inhibitors Interralationships
Quantitation of hepatic fatty acid-binding proteins by post-chromatographic ligand binding assay (1983)

A new procedure for the detection and quantitation of small molecular weight cytosolic fatty acid-binding proteins (FABP) in chromatographic fractions is described. Aliquots of the fractionated cytosol are incubated with radiolabeled palmitate and the unbound fatty acid ligand is quickly removed by addition of a dextran-gelatin-coated charcoal suspension. Quantitation of the FABP is accomplished by counting the protein-bound radioactivity in the supernatant fraction after a brief centrifugation step. Validation studies have shown the assay to be linear over a range of 10-40 micrograms or 20-80 micrograms of FABP depending on specific activity of [14C]palmitate used. Bovine serum albumin can be included as an external binding protein to correct for the nominal day-to-day variation in the assay system. The assay has been found to give consistent results with a wide variety of buffer salts, ionic strength, and pH, and therefore is compatible with the usual conditions of gel filtration, ion exchange, and affinity chromatography. Compared to detection methods involving prechromatographic addition of bromosulfophthalein or radiolabeled fatty acids to cytosolic proteins, the post-chromatographic binding assay offers the advantage of leaving the bulk of the FABP preparation free of these marker ligands.
Word 2007 : The Missing Manual (2006)

Microsoft Word has grown considerably in power, sophistication and capability over the past decade, but one thing that hasn't changed since the early '90s is its user interface. The simple toolbar in version 2.0 has been packed with so many features since then that few users know where to find them all. Consequently, more and more people are looking for insider tips that will allow them to use these advanced and often hidden features. Microsoft has addressed this problem in Word 2007 by radically redesigning the user interface with a tabbed toolbar that makes every feature easy to locate and use. Unfortunately, Microsoft's documentation is as scant as ever, so even though you will be able to find advanced features, you might not know what to do with them. Word 2007: The Missing Manual, written specifically for this version of the software, explains basics like how to create documents, enter and edit text, format, print, and fax. You will will also learn how to create sophisticated page layouts, insert forms and tables, use graphics, and create book-length documents with outlines and Master Documents. Coverage also includes how to share documents with other people and programs, create web pages, automate documents with fields, and automate tasks with macros and the Visual Basic scripting language. This book shows you how to do it all.
Biosynthetic Route to the Ephedra Alkaloids (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBiosynthetic Route to the Ephedra AlkaloidsGunnar Grue-Soerensen and Ian D. SpenserCite this: J. Am. Chem. Soc. 1994, 116, 14, 6195–6200Publication Date (Print):July 1, 1994Publication History Published online1 May 2002Published inissue 1 July 1994https://pubs.acs.org/doi/10.1021/ja00093a019https://doi.org/10.1021/ja00093a019research-articleACS PublicationsRequest reuse permissionsArticle Views527Altmetric-Citations30LEARN 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