gebhart/patrepeval huggingface dataset:
Spontaneous acetylcholine release in mammalian neuromuscular junctions (1997)

Spontaneous secretion of the neurotransmitter acetylcholine in mammalian neuromuscular synapsis depends on the Ca2+ content of nerve terminals. The Ca2+ electrochemical gradient favors the entry of this cation. We investigated the possible involvement of three voltage-dependent Ca2+ channels (VDCC) (L-, N-, and P/Q-types) on spontaneous transmitter, release at the rat neuromuscular junction. Miniature end-plate potential (MEPP) frequency was clearly reduced by 5 microM nifedipine, a blocker of the L-type VDCC, and to a lesser extent by the N-type VDCC blocker, omega-conotoxin GVIA (omega-CgTx, 5 microM). On the other hand, nifedipine and omega-CgTx had no effect on K(+)-induced transmitter secretion. omega-Agatoxin IVA (100 nM), a P/Q-type VDCC blocker, prevents acetylcholine release induced by K+ depolarization but failed to affect MEPP frequency in basal conditions. These results suggest that in the mammalian neuromuscular junction Ca2+ enters nerve terminals through at least three different channels, two of them (L- and N-types) mainly related to spontaneous acetylcholine release and the other (P/Q-type) mostly involved in depolarization-induced neurotransmitter release. Ca(2+)-binding molecule-related spontaneous release apparently binds Ca2+ very rapidly and would probably be located very close to Ca2+ channels, since the fast Ca2+ chelator (BAPTA-AM) significantly reduced MEPP frequency, whereas EGTA-AM, exhibiting slower kinetics, had a lower effect. The increase in MEPP frequency induced by exposing the preparation to hypertonic solutions was affected by neither external Ca2+ concentration nor L-, N-, and P/Q-type VDCC blockers, indicating that extracellular Ca2+ is not necessary to produce hyperosmotic neurosecretion. On the other hand, MEPP frequency was diminished by BAPTA-AM and EGTA-AM to the same extent, supporting the view that hypertonic response is promoted by "bulk" intracellular Ca2+ concentration increases.
Adaptation and mobility in wireless information systems (2002)

The author begins by discussing the background, defining key terms and showing how wireless information systems can be viewed as a natural evolution of computing's relentless march toward greater distribution and ubiquity of access. Next, the research issues faced by designers of wireless information systems are detailed, and some large-scale engineering challenges for such designers are presented. The existing cellular system architecture, evolved from telephony, is compared with an alternative architecture more closely integrated with a computer networking view of wireless systems. Existing wireless systems are reviewed, and the final section presents the author's summary and conclusions, and charts the future of wireless information systems. >
THE CONTRIBUTION OF EXTRANEURONAL UPTAKE TO THE TRACHEA‐BLOOD VESSEL SELECTIVITY OF β‐ADRENOCEPTOR STIMULANTS <i>in vitro</i> IN GUINEA‐PIGS (1976)

The potencies relative to isoprenaline of isoetharine, tertiary butyl noradrenaline, salbutamol, orciprenaline, Me 506, rimiterol, fenoterol, carbuterol and terbutaline on isolated preparations of guinea‐pig trachea and blood vessels (perfused hind limb) were determined. All the compounds were selective for trachea and selectivity values, i.e. relative potency on trachea divided by relative potency on hind limb, ranged from 2.3 to 21.4. Responses to isoprenaline (the reference compound), tertiary butyl noradrenaline and isoetharine were potentiated on trachea by 50 μ m phenoxybenzamine (PHB) and by other inhibitors of extraneuronal uptake (ENU). Under these conditions the selectivity values of all the compounds was close to unity. Selectivity values were also close to unity if they were calculated from data obtained without ENU inhibition, provided that only those compounds not potentiated by PHB on trachea were used. It is proposed that the trachea‐blood vessel selectivity shown by β‐adrenoceptor stimulants can be caused by the influence of ENU upon them, rather than by their ability to distinguish between two β 2 ‐adrenoceptors. The suggestion that differences exist between β 2 ‐adrenoceptors in respiratory and vascular smooth muscle is not supported by the in vitro experiments described.
The national photovoltaic program "100,000 Solar House (GER) in Mongolia" (2002)

This paper summaries Mongolian government activities concerning the implementation of the national program "100,000 Solar Houses (Ger) in Mongolia" to satisfy the basic energy needs of nomadic herding families of the dispersed and distant poorest rural communities.
Experimental investigation on R1270 as alternative refrigerant of R22 in residential air conditioners. (2012)

The natural refrigerant R1270 to replace R22 in residential air conditioner has been investigated experimentally in this paper. The thermophysical properties of R1270 and R22 have been compared firstly. R1270 offers a similar vapor pressure to R22 under same conditions, but has higher heat transfer coefficient, higher specific heat capacity, lower viscosity compared to R22, and its latent heat of vaporization is 1.88 times of that of R22. Two air conditioners with R1270 and one air conditioner with R22 as a reference unit have been tested under standard condition. R1270 has almost identical cooling capacity as compared to R22 under the same conditions, whereas the coefficient of performance (COP) of system with R1270 to replace R22 directly is 4.3% higher than that of R22 original system, and the COP of novel prototype air conditioner designed for R1270 is 12.3% higher than that of R22 system. As for the refrigerant charge, R1270 is 59% lower for the unit without modification and 69.3% lower for the unit designed for R1270 than that of R22. In addition, the compressor discharge temperature of R1270 of is about 8°C lower than that of R22 under the same condition. The experimental results show that R1270 is a potential natural alternative to replace R22 in residential air conditioners
A bandwidth-efficient class of signal-space codes (1978)

A new class of codes in signal space is presented, and their error and spectral properties are investigated. A constant-amplitude continuous-phase signal carries a coded sequence of linear-phase changes; the possible signal phases form a cylindrical trellis in phase and time. Simple codes using 4-16 phases, together with a Viterbi algorithm decoder, allow transmitter power savings of 2-4 dB over binary phase-shift keying in a narrower bandwidth. A method is given to compute the free distance, and the error rates of all the useful codes are given. A software-instrumented decoder is tested on a simulated Gaussian channel to determine multiple error patterns. The error parameter <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">R_{o}</tex> is computed for a somewhat more general class of codes and is shown to increase rapidly when mere phases are employed. Finally, power spectral density curves are presented for several codes, which show that this type of coding does not increase the transmitted signal bandwidth.
Unemployment Insurance: Good Cause for Leaving Employment (1971)

The primary objectives behind the enactment of unemployment insurance programs have been enunciated as follows: Unemployment insurance is a program established under Federal and State law for income maintenance during periods of involuntary unemployment due to lack of work, which provides partial compensation for wage loss as a matter of right, with dignity and dispatch, to eligible individuals. It helps to maintain purchasing power and to stabilize the economy. It helps to prevent the dispersal of the employers' trained work force, the sacrifice of skills, and the breakdown of labor standards during temporary unemployment. However, there are certain requirements a claimant must fulfill be- fore he can be entitled to receive such benefits. One of these is that the worker must have left his employment for "good cause."
Forced oscillations and suppression of oscillations in nonlinear sampled-data systems (1966)

In this paper, a procedure is developed to investigate and predict the properties of certain types of forced oscillations in a class of nonlinear sampled-data control systems. Use is made of the discrete describing function, and the results are checked on the IBM 7094 digital computer. A sinusoidal input signal with variable amplitude and phase is applied to a relay-type sampled-data control system. It is shown that the input signal has the effect of changing the shape of the critical regions of the negative-inverse of the discrete describing function. The amplitude, phase, and frequency of the forced oscillation can be computed from the intersection between the critical region and frequency loci of the linear portion of the system. Proper selections of amplitude, phases and frequency of the forcing sinusoidal signal permit the elimination and suppression of certain types of sustained oscillations in the system.
The Improvement of PaaS Platform (2010)

PaaS (Platform-as-a-Service) is a business model in the cloud computing era, which provide a server platform or development environment for developers. Compared with the SaaS (Software-as-Service) to end-user, PaaS is more flexibility. Google App engine is a typical PaaS platform, which allows developers to write and run their own applications on the platform. It also helps developers store data and manage the server. However, it is not convenient for developers to write programs using java or Python API development. LongJump, which provide a platform for quickly building enterprise Web applications, significantly shorten the development cycle. But it does not have good scalability and mass data management capabilities, and can only provide service for some developers. This paper describes the techniques and frameworks used by the two platforms. And then we bring forward an improved framework for PaaS platform which combine with the advantages of GAE and LongJump platform by adopting Mashup technology. Using the improved framework, we can build the PaaS platform which is easier and more flexible for development of web applications.
Inertially Augmented Automatic Landing System: Autopilot Performance with Imperfect ILS Beams (1972)

The report considers the capability of three autopilots, with varying dependency or inertial navigation inputs, to perform the automatic landing task in the presence of ILS beam anomalies. Three sets of pitch and roll axis control laws for a commercial jet transport were analyzed and flight tested to determine their comparative advantages and limitations. Conventional autopilots with only minor or no reliance on inertial inputs are sensitive to ILS beam imperfections. It is shown that complementary filtering of ILS position information with INS- derived acceleration and velocity results in a very marked attenuation of airplane response to beam bends, noise, and overflight interference. A set of equations is derived by which the acceptability of system performance during an automatic approach can be assessed. The capability of the three autopilots to provide acceptance on Category 1 and 2 ILS beams is investigated.
Optimal control approach developed to Four-Wheel Active Steering Vehicles (2013)

An optimal control approach is developed for Four-Wheel Active Steering Vehicles. First, parameterized vehicle model is built. Second, active steering model is implemented and coupled to the vehicle model. Finally, an optimal control loop, delivering as final output optimal vehicle performances of Four-Wheel Active Steering Vehicles is developed.
Managing for pleasure: Some lessons from a comparative review of management education programmes in tourism (1991)

Owners and managers in the world's most rapidly developing industry are under pressure. The real challenges of product and market differentiation, rising client expectations of facilities and globalising markets are placing great burdens on the competence, performance and adaptability of management at all levels in the tourism business. Their ability to succeed in a more competitive and rapidly changing global economic situation and the future national and international performance of tourism and related activities will depend largely on the skills, qualities and knowledge managers are able to bring individually and collectively to their businesses.
Bun splitting: a practical cutting stock problem (2008)

We describe a new hierarchical 2D-guillotine Cutting Stock Problem. In contrast to the classic cutting stock problem, waste is not an issue. The problem relates to the removal of a defective part and assembly of the remaining parts into homogeneous size blocks. The context is the packing stages of cake manufacturing. The company’s primary objective is to minimise total processing time at the subsequent, packing stage. This objective reduces to one of minimising the number of parts produced when cutting the tray load of buns. We offer a closed form optimization approach to this class of problems for certain cases, without recourse to mathematical programming or heuristics. The methodology is demonstrated through a case study in which the number of parts is reduced by almost a fifth, and the manufacturer’s subsidiary requirement to reduce isolated single bun parts and hence customer complaints is also satisfied.
ReFlex (2017)

Remote access to NVMe Flash enables flexible scaling and high utilization of Flash capacity and IOPS within a datacenter. However, existing systems for remote Flash access either introduce significant performance overheads or fail to isolate the multiple remote clients sharing each Flash device. We present ReFlex, a software-based system for remote Flash access, that provides nearly identical performance to accessing local Flash. ReFlex uses a dataplane kernel to closely integrate networking and storage processing to achieve low latency and high throughput at low resource requirements. Specifically, ReFlex can serve up to 850K IOPS per core over TCP/IP networking, while adding 21us over direct access to local Flash. ReFlex uses a QoS scheduler that can enforce tail latency and throughput service-level objectives (SLOs) for thousands of remote clients. We show that ReFlex allows applications to use remote Flash while maintaining their original performance with local Flash.
Radio-Elements as Indicators and Other Selected Topics in Inorganic Chemistry (Paneth, Fritz) (1928)

ADVERTISEMENT RETURN TO ISSUEPREVBook and Media Revie...Book and Media ReviewNEXTRadio-Elements as Indicators and Other Selected Topics in Inorganic Chemistry (Paneth, Fritz)James M. Bell Cite this: J. Chem. Educ. 1928, 5, 5, 631Publication Date (Print):May 1, 1928Publication History Received3 August 2009Published online1 May 1928Published inissue 1 May 1928https://doi.org/10.1021/ed005p631.2RIGHTS & PERMISSIONSArticle Views107Altmetric-Citations-LEARN 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 (1008 KB) Get e-Alerts Get e-Alerts
An Anti-Tissue Factor Pathway Inhibitor (TFPI) Monoclonal Antibody Recognized the Third Kunitz Domain (K3) of Free-Form TFPI but Not Lipoprotein-Associated Forms in Plasma1 (1995)

Tissue factor pathway inhibitor (TFPI) is a Kunitz-type protease inhibitor with three tandem inhibitory domains, which inhibits the initial reactions of the extrinsic blood coagulation pathway through the first and second Kunitz domains. We prepared a monoclonal antibody against recombinant human TFPI (rTFPI) and determined the epitope as the third Kunitz domain, using fragments derived from rTFPI (K1-K2 fragment and K3 fragment) and synthetic peptides. We then developed an enzyme immunoassay (EIA) method using a combination of the monoclonal antibody and a polyclonal antibody. Although TFPI activity is distributed among LDL/VLDL-associated, HDL-associated, and free forms of TFPI after gel-filtration of human plasma, only the free form was detected by the EIA method. After incubation with LDL, the antigenicity of rTFPI was reduced, but that of K3 fragment was not. Gel-filtration analysis of the mixture of radiolabeled rTFPI or K3 with LDL demonstrated that rTFPI, but not K3, bound LDL. From these results, we concluded that the monoclonal antibody against TFPI recognized only a free form of TFPI in plasma, since the epitope of lipoprotein-associated TFPI had been masked by the interaction with lipoproteins.
A process‐based view for customer satisfaction (1995)

Many scholars have highlighted, from both the theoretical and the empirical perspective, the importance of customer satisfaction for firms’ competitiveness. Most contributions, however, do not analyse the links between customer satisfaction and the related organizational processes. Adopting a process‐based point of view, develops an integrative and holistic approach and proposes a framework for the analysis of the organizational processes required for the achievement of customer satisfaction. These processes are subdivided into three main categories: planning, design and monitoring. The first concerns the establishment of the medium, long‐term company strategic objectives for customer satisfaction, the second regards the design of the firm’s operating system, and the third relates to the outline of the control system. Proposes an integrated view of customer satisfaction that overcomes the limits of an approach mainly based on monitoring activities.
Situation-Aware Adaptive Recommendation to Assist Mobile Users in a Campus Environment (2009)

Users in a campus need information about relevant individuals, buildings, events and available resources. In this paper, we propose a system to perform situation-aware adaptive recommendation of information to assist mobile users in a campus environment. The idea is to show information about the most relevant buildings and particular individuals situated nearby the user, taking into account the user situation, i.e., a snapshot of his/her context in a given instant, including his/her current activity, position and profile. This recommendation must be adapted, depending on the dynamic evolution of the user situation. Thus, the system is pervasive in the sense that it performs the most suitable recommendation at the right moment in the right place. A prototype of the recommender is being implemented.
Characterization of a Novel Extremely Alkalophilic Bacterium (1977)

A new alkalophilic bacterium, isolated from a natural spring of high pH is characterized. It is a Gram-positive, non-sporulating, motile rod requiring aerobic and alkaline conditions for growth. The characteristics of this organism resemble those of the coryneform group of bacteria; however, there are no accepted genera within this group with which this organism can be closely matched. Therefore, a new genus may be warranted.
Predicting transformer temperature rise and loss of life in the presence of harmonic load currents (2012)

Power transformers represent the largest portion of capital investment in transmission and distribution substations. One of the most important parameters governing a transformer’s life expectancy is the hot spot temperature value. The aim of this paper is to introduce hot-spot and top-oil temperature model as top oil and hot spot temperature rise over ambient temperature model and thermal model under liner and non-linear loads. For more accurate temperature calculations, in this paper thermal dynamic model by MATLAB is used to calculate the power transformer temperature. The hot spot, top oil and loss life of power transformer under harmonics load are calculated. The measured temperatures of 25 MVA, 66/11 kV, ONAF cooling temperatures are compared with the suggested dynamic model.
Degradable or not? Cellulose acetate as a model for complicated interplay between structure, environment and degradation (2020)

Degradable and/or biobased plastics are advocated as possible solution to plastic waste problem. Although mechanical and chemical recycling or energy recovery are in many cases a preferred option to regain the material value, for some applications composting is ideal. However, to more generally ensure complete degradation of plastics within a relatively short time-frame in all-natural environments would be extremely challenging, if not impossible. It is also important to keep in mind that it is the chemical structure and composition in combination with degradation environment that determines whether the plastic will degrade and within what timeframe. Biobased materials can be as stable as the petroleum-based counterparts and face the same waste-management problems. One interesting group of biobased materials are the modified biopolymer-based plastics, such as cellulose acetate (CA). How different modifications affect the inherent degradability of biopolymers is still poorly understood, which is reflected in the contradictory literature. This mirrors the complex interplay between structure-environment-degradability, where structural changes such as degree of substitution in the case of CA and changes in selected degradation environment can lead to totally different end-results and conclusions. Understanding these interactions is a fascinating scientific question. The deposition of CA based products as common surface litter makes it also question of societal and environmental interest. The purpose of this review is to summarize the existing knowledge on degradation of CA and in larger perspective highlight the complicated nature of plastic and bioplastic degradation in natural environments and the interplay between different environmental parameters and material modifications on this process.
EFFECTS OF MAGNETIC SEED TREATMENT ON YIELDS OF BARLEY, WHEAT, AND OATS IN SOUTHERN ALBERTA (1977)

Preseeding magnetic treatment of barley seed (Hordeum vulgare L.) resulted in seed yield increases in 13 of 19 field tests in southern Alberta from 1972 and 1975. Similarly, treatment of spring and winter wheat seed (Triticum aestivum L.) resulted in yield increases in 14 of 23 tests. Otas (Avena sativa L.) showed no yield response to magnetic treatment of the seed. Within specified limits, date of treatment before seeding, strength of magnetic field, make or model of the magnetic treater used appeared to have no appreciable effect on the response elicited by the seed and the resultant plant.
Studies on the Aleurone Layer I. Oonventional and Fluorescence Microscopy of the Cell Wall With Emphasis on Phenol-Carbohydrate Complexes in Wheat (1972)

In the ungerminated seed, the cell walls of the aleurone layer of wheat (Triticum aestivum cv. Heron) are strongly autofluorescent and are stained by aniline blue, resorcinol blue, toluidine blue, and the periodic acid-Schiff's reaction. Thin-layer chromatography of acid or alkaline extracts and microspectrofluorimetry indicate that the fluorescent component of the wall is ferulic acid. During germina-tion, the ferulic acid disappears from the aleurone cell wall in a specific pattern and its loss is accompanied by loss of stainable substance except in the innermost layer of the wall. These facts suggest that the aleurone cell wall contains a ferulic acid-carbohydrate complex which renders it relatively resistant to the action of the hydro-lases which digest the endosperm.