gebhart/patrepeval huggingface dataset:
Very Fast Decision Rules for multi-class problems (2012)

Decision rules are one of the most interpretable and flexible models for data mining prediction tasks. Till now, few works presented online, any-time and one-pass algorithms for learning decision rules in the stream mining scenario. A quite recent algorithm, the Very Fast Decision Rules (VFDR), learns set of rules, where each rule discriminates one class from all the other. In this work we extend the VFDR algorithm by decomposing a multi-class problem into a set of two-class problems and inducing a set of discriminative rules for each binary problem. The proposed algorithm maintains all properties required when learning from stationary data streams: online and any-time classifiers, processing each example once. Moreover, it is able to learn ordered and unordered rule sets. The new approach is evaluated on various real and artificial datasets. The new algorithm improves the performance of the previous version and is competitive with the state-of-the-art decision tree learning method for data streams.
Intracellular events and signaling pathways involved in sperm acquisition of fertilizing capacity and acrosome reaction (2000)

Two processes, namely capacitation and acrosome reaction, are of fundamental importance in the fertilization of oocyte by spermatozoon. Physiologically occurring in the female genital tract, capacitation is a complex process, which renders the sperm cell capable for specific interaction with the oocyte. During capacitation, modification of membrane characteristics, enzyme activity and motility properties of spermatozoa render these cells able to penetrate oocyte investments and responsive to stimuli that induce acrosome reaction prior to fertilization. Physiological acrosome reaction occurs upon interaction of the spermatozoon with the zona pellucida protein ZP3. This is followed by liberation of several acrosomal enzymes and other constituents that facilitate penetration of the zona and expose molecules on the sperm equatorial segment that allows fusion of sperm membrane with the oolemma. The molecular mechanisms and the signal transduction pathways mediating the processes of capacitation and acrosome reaction have been partially defined, and appear to involve modifications of intracellular calcium and other ions, lipid transfer and phospholipid remodeling in sperm plasma membrane as well as changes in protein phosphorylation. Some of the kinases and phosphorylated proteins that are involved in the processes of capacitation and acrosome reaction have been now characterized. Characterization of sperm receptors to physiological inducers of acrosome reaction is in progress. This review summarizes the main signal transduction pathways involved in capacitation and acrosome reaction.Furthermore, the mechanisms underlying sperm DNA fragmentation are also briefly reviewed.
Investigations on reductions of friction on wings, in particular by means of boundary layer suction (1947)

Memorandum presenting investigation on reductions of friction on wings, especially by means of boundary-layer suction. The report is broken up into several sections, including: causes of transition, laminar profiles with the transition taking place, laminar boundary-layer suction, investigation of the laminar pressure increase, investigation of the slot flow for laminar boundary-layer suction with single slots, tests about keeping a boundary layer for high Reynolds laminar with the aid of boundary-layer suction, and an investigation of a slightly-cambered laminar suction profile of 10.5-percent thickness.
Adaptive advisory speed limit dissemination using vehicular communication (2014)

Variable speed limits (VSLs) have been investigated for decades to modify the speed limit based on the prevailing road circumstances. VSLs have increasingly reaped attention as a means to enhance road traffic safety. In this study pros and cons of the VSL systems, and factors that affect on VSL impacts is summarized. Despite the potential effectiveness of utilizing VSLs, the success of this system is impacted by several factors such as VSL strategy used and the level of driver compliance. It is found that the level of driver compliance could be depends on vehicles' safety capabilities. Therefore, we have introduced an Adaptive Advisory Speed Limit Dissemination (AASLD) architecture which uses a novel VSL control strategy to ameliorate driver compliance with speed limits. The current speed limit determine based upon the vehicle safety capabilities (e.g. vehicle type, size, weight, safety features) in addition to traffic and road conditions. The simulation results showed prominently that AASLD improves traffic flow efficiency and occupancy. In addition, the results demonstrate that utilization of Vehicular ad-hoc network technology in AASLD has evidently reduced the incident detection time up to 31.2 percent and appliance of safe speed limit in comparison with traditional VSL strategies.
Automated Inspection of Electric Transmission Lines: The power supply system (2006)

The difficulty of the inspection tasks along electric transmission lines in order to ensure the safety of the line workers, combined with the interests to reduce the operation costs, makes the automation of the process to become interesting. The goal is to develop an autonomous robot which should run along the conductors while making the inspection. This robot needs energy. Several sources are considered but the line energy itself is selected as the best option. A system to take profit of the electromagnetic fields generated by the high voltage transmission lines is introduced in this paper. Experimental results have been obtained validating the viability of this kind of power supply system.
Giant volume magnetostriction due to the itinerant electron metamagnetic transition in La(Fe-Si)/sub 13/ compounds (1999)

Ferromagnetic La(Fe/sub x/Si/sub 1-x/)/sub 13/ compounds with x/spl ges/0.87 show an itinerant metamagnetic transition above the Curie temperature T/sub c/. Since a large volume change of about 1.5% is caused by the transition, the present compounds have a possibility for practical applications as giant magnetostrictive materials. To adjust T/sub c/ around room temperature, the effect of the substitution by other magnetic elements on the Curie temperature was examined. The Curie temperature of La(Fe/sub 0.88/Co/sub y/Si/sub 0.12-y/)/sub 13/ compounds increases with increasing y and the itinerant electron metamagnetic transition appears above T/sub c/. For y=0.03 and 0.04, a huge volume change of 0.6/spl sim/0.9%, or a linear change of 0.2/spl sim/0.3%, due to the itinerant metamagnetic transition is observed around 250 K.
Converting Metals into Phosphides:  A General Strategy for the Synthesis of Metal Phosphide Nanocrystals (2007)

Nanocrystals of metal phosphides, which can have useful catalytic, electronic, and magnetic properties, are known to be accessible by using trioctylphosphine (TOP) as a highly reactive phosphorus source. Here we report a general strategy for synthesizing transition metal phosphides, including those with 4d and 5d transition metals that have not previously been reported as unsupported nanocrystals. Unlike previously reported methods that involve direct decomposition of organometallic precursors, our method utilizes preformed metal nanoparticles as templates for generating metal phosphide nanocrystals. Metal nanoparticles are reacted with TOP in a hot solvent (290−360 °C) to form transition metal phosphides such as Ni2P, PtP2, Rh2P, PdP2, Pd5P2, and Au2P3. Furthermore, nanostructures such as hollow spheres can be easily made using a Kirkendall-type mechanism, which utilizes metal nanoparticles as reactive templates.
886. Pteridine studies. Part X. Pteridines with more than one hydroxy- or amino-group (1956)

A. Albert, J. H. Lister and C. Pedersen, J. Chem. Soc., 1956, 4621 DOI: 10.1039/JR9560004621
Medical Reminiscences (1840)

From the preceding facts, we are led to feel tolerably certain what organs are concerned in the production of animal heat, and what are not ; but the quo modo is still hid from us in a dark and mazy atmos- phere.It is, indeed, generated in the lungs ; not, however, in the decarbonization of the blood, but in precisely the same manner as in other parts, viz., by the action of a nervous influence on arterial blood, carried thither by the bronchial arteries.In all parts of the body largely supplied with bloodvessels and nerves, caloric is disengaged ; and in all diseases where there is an increase of circulation and of ner- vous influence, the temperature is raised.The natural standard of heat in the human body varies from 96 to 93 degrees Fahrenheit.Iu scarlet fever, it rises to 108, 110, and even to 112 degrees, which fact goes far towards proving that heat is generated in every part of the system, wherever there are a vascular and a nervous tissue.E. G. Wheeler.
Heat stability of the antimicrobial activity of sixty-two antibacterial agents (1995)

Sixty-two antimicrobial agents, including several combinations, were examined for stability at 56 degrees C for 30 min and 121 degrees C for 15 min, respectively. A microtiter broth dilution MIC test and an agar disk diffusion test served to test each chemo-agent for residual antimicrobial activity. Eleven drugs were partially heat-labile (MICs raised four- to eight-fold after autoclaving) and 26 drugs were heat-labile (MICs raised > or = 16-fold following autoclaving); the remainder proved heat-stable (MICs raised < or = two-fold after autoclaving). Surprisingly, the beta-lactams, azlocillin, aztreonam, mezlocillin, and oxacillin, were remarkably heat-stable.
The Ultrastructure of the Rhizoplane and Rhizosphere (1986)

Beneficial microbes in the microbiome of plant roots improve plant health. Induced systemic resistance (ISR) emerged as an important mechanism by which selected plant growth–promoting bacteria and fungi in the rhizosphere prime the whole plant body for ...Read More
PLAY-N-JUMP Συχνές ερωτήσεις για ενοικιάσεις παιχνιδιών (2010)

Συχνές eρωτήσeις για eνοικιάσeις παιχνιδιών, τι πρέπeι να ξέρeτe πριν eνοικιάσeτe κάποιο φουσκωτό ή άλλο παιχνίδι, PLAY-N-JUMP
Rational design of light‐controllable polymer micelles (2007)

Amphiphilic block copolymer (BCP) micelles are nanocarriers that hold promise for controlled delivery applications. This account highlights our recent works on light-dissociable BCP micelles. We have designed and developed light-responsive amphiphilic BCPs whose micellar aggregates (core-shell micelles and vesicles) can be disrupted by light exposure. The basic strategy is to incorporate a chromophore into the structure of the hydrophobic block, whose photoreaction can result in a conformational or structural change that shifts the hydrophilic/hydrophobic balance toward the destabilization of the micelles. Using various chromophores including azobenzene, pyrene and nitrobenzene, we have achieved both reversible and irreversible dissociation of BCP micelles upon illumination with UV/visible or near infrared light. The demonstrated rational design principle based on light-changeable or light-switchable amphiphilicity is general and can be applied to many polymer/chromophore combinations. This opens the door to developing photocontrollable polymer nanocarriers offering control over when and where the release of loaded agents takes place.
Fine-needle aspiration cytology of metastatic transitional cell carcinoma (2005)

In this article we described the fine-needle aspiration cytology (FNAC) of five cases of metastatic transitional cell carcinoma (TCC). There were four cases of metastatic lymph nodes and one case of metastatic skin lesion. All of the TCC cases were primarily in the urinary bladder and were high grade on histopathology (grade 3). Three cases showed bladder muscle involvement and two cases showed superficial TCC at the time of primary diagnosis. FNAC smears showed abundant cellularity. The cells were present in discrete and small syncytial clusters. Nuclear position of the cell was central to eccentric. Many cells showed prominent nucleoli. Cercariform cells (CCs) were noted in four cases. These cells are malignant cells with a nucleated globular body and a unipolar nontapering cytoplasmic process. Two cases showed intranuclear inclusions. Prominent cytoplasmic vacuoles were noted in three cases. In addition, cell cannibalism and attempted pearl formations were noted in two cases.In conclusion, clinical history along with the certain cytological features such as the presence of CCs, cells with eccentric nuclei, and intranuclear inclusions are helpful to diagnose metastatic TCC on FNAC material.
Study on Poly-hydroxybutyrate(PHB) Extraction from Sphaerotilus natans by Sodium Hypochlorite-chloroform (2004)

A method for extraction PHB from S. natans FQ40 by using sodium hypochlorite-chloroform was studied. The factors, including concentration of sodium hypochlorite, reaction time, temperature and SDS were optimized. The results showed that the optimal extraction conditions were the cells being treated with 5% sodium hypochlorite and 10% SDS at 35℃ for 5 min. At this conditions, the extraction rate could reach 56%, and the purity of PHB was coincident with the standard PHB.
Enhanced Performance of LDPE/SBS Blend Modified Asphalt through Dynamic Vulcanization (2002)

A blend of a Low-Density Polyethylene (LDPE) and a Styrene-Butadiene-Styrene triblock copolymer (SBS) was mixed with an asphalt, and a storage-stable modified asphalt was prepared by dynamic vulcanization. The vulcanization characteristics of this LDPE/SBS blend-modified asphalt were studied using a strain-controlled rheometer. The vulcanization of the SBS in the blend-modified asphalt resulted in a marked increase in the torque. In addition, the physical properties of the LDPE/SBS blend-modified asphalt containing even a small quantity of sulfur were improved compared to the modified asphalt without sulfur. The storage stability of the LDPE/SBS blend-modified asphalt was also improved by the addition of sulfur. The rheological properties of the LDPE/SBS blend-modified asphalt before and after adding sulfur were characterized using a dynamic shear rheometer and a rotational viscometer.
On distributed database security aspects (2009)

This paper will examine the underlying features of the distributed database architecture. Learning the task of distributed database management system will lead us to a successful design. The design will improve scalability, accessibility and flexibility while accessing various types of data. Developing a successful distributed database system requires to address the importance of security issues that may arise and possibly compromise the access control and the integrity of the system. We propose some solutions for some security aspects such as multilevel access control, confidentiality, reliability, integrity and recovery that pertain to a distributed database system.
산화 산처리법에 의한 폐초경공구로 부터의 코발트금속 회수에 관한 연구 (1982)

In order to recover cobalt from the waste WC-Co alloys, the oxidation & acid leaching process has been studied. In the oxidation under air at various temperatures, the maximum oxidation was achieved at 900℃. For given composition of alloy, the rate of oxidation was more or less constant with the extent of reaction time but the higher the cobalt content of alloys, the faster the oxidation rate was observed. After a complete oxidation, the hardmetals were easily crushed into powder form, followed by leaching of cobalt by HC1. The rate of leaching was increased with increasing reaction temperature and also the concentration of HC1.
From the stem of the placental tree: trophoblast stem cells and their progeny (2016)

Trophoblast stem cells (TSCs) retain the capacity to self-renew indefinitely and harbour the potential to differentiate into all trophoblast subtypes of the placenta. Recent studies have shown how signalling cascades integrate with transcription factor circuits to govern the fine balance between TSC self-renewal and differentiation. In addition, breakthroughs in reprogramming strategies have enabled the generation of TSCs from fibroblasts, opening up exciting new avenues that may allow the isolation of this stem cell type from other species, notably humans. Here, we review these recent advances in light of their importance for understanding placental pathologies and developing personalised medicine approaches for pregnancy complications.
Notes - Nitrous Acid Oxidation of Triacyl Pyridoxamine (1957)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNotes - Nitrous Acid Oxidation of Triacyl PyridoxamineTaketami Sakuragi and Fred KummerowCite this: J. Org. Chem. 1957, 22, 7, 825–827Publication Date (Print):July 1, 1957Publication History Published online22 April 2003Published inissue 1 July 1957https://pubs.acs.org/doi/10.1021/jo01358a603https://doi.org/10.1021/jo01358a603research-articleACS PublicationsRequest reuse permissionsArticle Views75Altmetric-Citations3LEARN 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
Advantages of redeployable and relocatable security systems (1994)

We describe Rapid Deployment Intrusion Detection System (RDIDS), and Relocatable Intrusion Detection System (RIDS) systems which can be designed for operation in any weather conditions. They are impervious to salt air, chemical and most explosive environments, and are highly resistant to nuisance and false alarms. Therefore, RDIDS and RIDS have the flexibility needed for urban, rural and remote installations. RDIDS was developed in the 90's, with the encouragement of TRW, for the US Air Defense System in Cape Kennedy, Florida, Fort Hood, Texas and more recently for the D.O.E. Strategic petroleum Reserve sites. These systems utilize photovoltaic power as their primary source of energy with twelve-hour battery backup. Security systems can be integrated with Radio Frequency (RF) polling transceivers operating in the VHF or UHF range. Further, RDIDS can be engineered to interface with fiber optic technology, thereby ensuring quality transmission in rural environments. Fiber optic cable integration has proven its effectiveness in outdoor environments as a reliable transmission source when using CCTV cameras. The fiber optic module can be used for monitoring the tamper and alarm circuits as well as video transmission. These technologies offer additional flexibility and substantial cash savings when compared to hard-wired installations. RDIDS can be deployed for a wide variety of special applications and can be operational in a fraction of the time required for conventional systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Use of DNAzymes for cancer research and therapy (2012)

DNAzymes (Dzs) are single-stranded DNA catalysts that specifically cleave the mRNA of targeted genes. Compared with other gene-silencing technologies, such as ribozymes, antisense oligonucleotide and small interference RNA (siRNA), DNAzymes have several advantages, including small molecular weight, diversity, low cost and relative stability in serum. With the evolution of molecular technology, the first DNAzyme was generated in vitro in 1994. From then on, DNAzymes have been studied in order to understand their structures, chemistry and biological applications. Particularly, DNAzymes have been widely applied as a new interference strategy in the treatment of many conditions, including cancer, viral diseases, and cardiovascular diseases. This review mainly summarizes the use of DNAzymes in the areas of cancer research and therapy.
Drugs, including alcohol, that act as risk factors for cataract, and possible protection against cataract by aspirin-like analgesics and cyclopenthiazide. (1988)

A case-control study of cataract in Oxfordshire explored the risks and benefits associated with a variety of drugs. Steroids including the diuretic spironolactone, nifedipine, heavy smoking, and beer drinking were associated with a raised risk. On the other hand aspirin-like analgesics (paracetamol, ibuprofen, aspirin, etc. appeared to protect against cataract. Cyclopenthiazide appeared to provide a similar protection.
ACM fellow profile (2001)

article Share on ACM fellow profile: Eugene H. Spafford Author: Greg Cooper View Profile Authors Info & Claims ACM SIGSOFT Software Engineering NotesVolume 26Issue 4July 2001 pp 13–16https://doi.org/10.1145/505482.505485Online:01 July 2001Publication History 0citation6DownloadsMetricsTotal Citations0Total Downloads6Last 12 Months0Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
Low cost solar electric testbed for ion thruster systems (1972)

A novel concept of spacecraft design has been developed to meet the high electric power demand of ion engines and the low payload and small fairing volume constraints of small launchers. It uses a light weight circular solar array. In orbit, the array is deployed by centrifugal force and serves as a gyroscopical stable platform in order to test the axially mounted ion thrusters. The circular array leads to a compact spacecraft: a Ikw testbed satellite can be built less than 200 Ib in weight. Two unfolding processes of the array have been tested successfully. A new solar cell connector technique has been initiated which exhibits a high flexibility, a great resistance against thermal gradients and a reduction of fabrication costs of arrays.
RING: An Integrated Method for Frequent Representative Subgraph Mining (2009)

We propose a novel representative based subgraph mining model. A series of standards and methods are proposed to select invariants. Patterns are mapped into invariant vectors in a multidimensional space. To find qualified patterns, only a subset of frequent patterns is generated as representatives, such that every frequent pattern is close to one of the representative patterns while representative patterns are distant from each other. We devise the RING algorithm, integrating the representative selection into the pattern mining process. Meanwhile, we use R-trees to assist this mining process. Last but not least, a large number of real and synthetic datasets are employed for the empirical study, which show the benefits of the representative model and the efficiency of the RING algorithm.