gebhart/patrepeval huggingface dataset:
Heuristics for the Traveling Repairman Problem with Profits (2010)

In the traveling repairman problem with profits, a repairman (also known as the server) visits a subset of nodes in order to collect time-dependent profits. The objective consists of maximizing the total collected revenue. We restrict our study to the case of a single server with nodes located in the Euclidean plane. We investigate properties of this problem, and we derive a mathematical model assuming that the number of visited nodes is known in advance. We describe a tabu search algorithm with multiple neighborhoods, and we test its performance by running it on instances based on TSPLIB. We conclude that the tabu search algorithm finds good-quality solutions fast, even for large instances.
Recent technical reports (1978)

article Recent technical reports Share on Author: SIGACT News Staff View Profile Authors Info & Claims ACM SIGACT NewsVolume 9Issue 4Winter 1978 pp 24–28https://doi.org/10.1145/1008369.1008374Published:01 January 1978 0citation231DownloadsMetricsTotal Citations0Total Downloads231Last 12 Months2Last 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
SmartMal: A Service-Oriented Behavioral Malware Detection Framework for Smartphones (2013)

This paper presents SmartMal-A novel service-oriented behavioral malware detection framework for vehicular and mobile devices. The highlight of SmartMal is to introduce Service Oriented Architecture (SOA) concepts and behavior analysis into the malware detection paradigms. The proposed framework relies on client-server architecture, the client continuously extracts various features and transfers them to the server, and the server's main task is to detect anomalies using state-of-art detection algorithms. Multiple distributed servers simultaneously analyze the feature vector using various detectors and information fusion is used to concatenate the results of detectors. We also propose a cycle-based statistical approach for mobile device anomaly detection. We accomplish this by analyzing the users' regular usage patterns. Empirical results suggest that the proposed framework and novel anomaly detection algorithm are highly effective in detecting malware on Android devices.
Mailbox switch: a scalable two-stage switch architecture for conflict resolution of ordered packets (2008)

Traditionally, conflict resolution in an input- buffered switch is solved by finding a matching between inputs and outputs per time slot, which incurs unscalable computation and communication overheads. The main objective of this paper is to propose a scalable solution, called the mailbox switch, that solves the out-of-sequence problem in the two-stage switch architecture. The key idea of the mailbox switch is to use a set of symmetric connection patterns to create a feedback path for packet departure times. With the information of packet departure times, the mailbox switch can schedule packets so that they depart in the order of their arrivals. Despite the simplicity of the mailbox switch, we show via both the theoretical models and simulations that the throughput of the mailbox switch can be as high as 75%. With limited resequencing delay, a modified version of the mailbox switch achieves 95% throughput. We also propose a recursive way to construct the switch fabrics for the set of symmetric connection patterns. If the number of inputs, N, is a power of 2, we show that the switch fabric for the mailbox switch can be built with y log2 N 2 x 2 switches.
Rapid and Specific Molecular Identification of Methicillin-Resistant <i>Staphylococcus aureus</i> in Endotracheal Aspirates from Mechanically Ventilated Patients (1998)

Multiplex amplification of femA and mecA genetic determinants allowed an early and rapid identification of methicillin-resistant Staphylococcus aureus (MRSA) in endotracheal aspirates of mechanically ventilated patients. femA and/or mecA amplification and bacteriological results were concordant in 57 of 60 samples. In all three discrepant cases, complementary bacteriological tests confirmed the presence of MRSA first identified by molecular analysis. These results underline the value and rapidity of this molecular diagnosis for MRSA infection and control surveillance in intensive care units. Rapid MRSA detection is expected to have a significant clinical impact not only on patient outcome but also on the costs for isolation and treatment.
Molecular Analysis of Aggressive Microdermabrasion in Photoaged Skin (2009)

Microdermabrasion using a coarse diamond-studded handpiece induces a dermal remodeling cascade similar to that seen in incisional wound healing. Optimization of these molecular effects is likely the result of more aggressive treatment with a more abrasive handpiece.
ΔpH-Dependent Amino Acid Transport into Plasma Membrane Vesicles Isolated from Sugar Beet Leaves (1990)

Amino acid transport into plasma membrane vesicles isolated from mature sugar beet (Beta vulgaris L. cv Great Western) leaves was investigated. The transport of alanine, leucine, glutamine, glutamate, isoleucine, and arginine was driven by a trans-membrane proton concentration difference. DeltapH-Dependent alanine, leucine, glutamine, and glutamate transport exhibited simple Michaelis-Menten kinetics, and double-reciprocal plots of the data were linear with apparent K(m) values of 272, 346, 258, and 1981 micromolar, respectively. These results are consistent with carrier mediated transport. DeltapH-Dependent isoleucine and arginine transport exhibited biphasic kinetics, suggesting these amino acids may be transported by at least two transport systems. Symport mediated alanine transport was electrogenic as demonstrated by the effect of membrane potential (DeltaPsi) on DeltapH-dependent flux. In the absence of significant charge compensation, a low rate of alanine transport was observed. When DeltaPsi was held at 0 millivolt with symmetric potassium concentrations and valinomycin, the rate of flux was stimulated fourfold. In the presence of a negative DeltaPsi, alanine transport increased sixfold. These results are consistent with an electrogenic transport process which results in a net flux of positive charge into the vesicles. The effect of changing DeltaPsi on the kinetics of alanine transport altered V(max) with no apparent change in K(m). Amino acid transport was inhibited by the protein modifier diethyl pyrocarbonate, but was insensitive to N-ethylmaleimide, 4,4'-diisothiocyano-2,2'-stilbene disulfonic acid, p-chloromercuribenzenesulfonic acid, phenylglyoxal, and N,N'-dicyclohexylcarbodiimide. Four amino acid symport systems, two neutral, one acidic, and one basic, were resolved based on inter-amino acid competition experiments. One neutral system appears to be active for all neutral amino acids while the second exhibited a low affinity for isoleucine, threonine, valine, and proline. Although each symport was relatively specific for a given group of amino acids, each system exhibited some crossover specificity for amino acids in other groups.
Evaluation of calcium ion-selective electrodes based on di(n-alkylphenyl)-phosphate sensors and their calibration with ion buffers (1979)

Sensors of calcium bis[di(4-alkylphenyl)phosphates](alkyl = hexyl, octyl and 1,1,3,3-tetramethylbutyl) in conjunction with dioctyl phenylphosphonate solvent mediator in PVC matrices give good calcium ion-selective electrodes with near-Nernstian slopes and detection limits of 1.9 × 10–6 to 2.7 × 10–6M calcium ions in the absence of ion buffers. Electrodes with the octyl-based sensor, when calibrated at 25 °C with calcium-ion buffers, gave calcium-ion detection limits of 10–8M. They also responded well at 50 °C.The e.m.f. response of the electrodes in 10–3M calcium chloride in 10–1M sodium chloride was stable within the pH range from below 5 to about 9. All of the above electrodes showed good selectivity towards calcium ions over sodium, potassium and magnesium ions.A range of di-n-alkyl phenylphosphonate solvent mediators (alkyl = pentyl, hexyl, heptyl, octyl, nonyl, decyl or undecyl) can be used with calcium bis[di(4-octylphenyl)phosphate] sensor but electrodes from the pentyl and undecyl compounds degrade slightly more quickly than the others. Decan-1-ol solvent mediator leads to characteristic interference from magnesium ions.Electrodes with membranes containing the neutral carrier calcium-ion sensor NN′-di[(11-ethoxycarbonyl)undecyl]-NN′-4,5-tetramethyl-3,6-dioxa-octane diamide with 2-nitrophenyl octyl ether as solvent mediator were capable of near-Nernstian calibrations and calcium-ion detection limits of less than 10–6M but quickly deteriorated.
AGENTFLY: Towards Multi-Agent Technology in Free Flight Air Traffic Control (2008)

Ever rising deployment of Unmanned Aerial Assets (UAAs) in complex military and rescue operations require novel and innovative methods for intelligent planning and collision avoidance among a high number of heterogeneous, semi-trusted flying assets in well specified and constrained areas []. We have studied the free flight concept as an alternative to the classical, centralized traffic control. In free flight the unmanned aerial assets are provided with flight trajectory that has been elaborated without consideration of other flying objects that may occupy the same air space. The collision threads are detected by each of the aircraft individually and the collisions are avoided by an asset-to-asset negotiation. Multi-agent technology is very well suited as a technological platform for supporting the free-flight concept among the heterogeneous UAAs. In this chapter we present AGENTFLY, multi-agent system for free-flight simulation and flexible collision avoidance.
Continuous postive airways pressure treatment by a face chamber in idiopathic respiratory distress syndrome. (1976)

Continuous positive airways pressure treatment by a face chamber in idiopathic respiratory distress syndrome. During a 3-year period 45 infants with idiopathic respiratory distress syndrome (IRDS) requiring ventilatory support were treated in the neonatal unit. Continuous positive airways pressure (CPAP) via the face chamber was applied as initial therapy in 39 infants and during weaning from initial intermittent positive pressure ventilation (IPPV) treatment in 5 infants, whereas 1 infant received IPPV only. Among the 39 infants initially treated with CPAP 9 required IPPV as well. The overall survival rate was 37/45 or 82%. Incapacity to hyperoxygenate while breathing 100% oxygen was the indication for CPAP while occurrence of apnoeic attacks was the indication for IPPV. Pao2 during the hyperoxia test before ventilatory support was less than 50 mmHg in 10 infants and between 50 and 105 mmHg in 35 infants. Surviving infants were followed up with neurological and developmental control examinations as well as chest x-ray, and in several infants pulmonary function tests. 3/37 infants had moderate neurological sequelae and only 1/37 infants developed bronchopulmonary dysplasia. No deleterious effects of the face chamber were seen. As the face chamber is a noninvasive and easily applied technique for CPAP therapy without hazards, it is proposed that it should be used at a still earlier stage of IRDS in order to lesson the need for IPPV treatment and to increase the neurological and lung functional quality of survival.
Epidermal growth factor receptor ectodomain in the urine of patients with squamous cell carcinoma. (1995)

In this study we determined the levels of the epidermal growth factor receptor (EGFR) in the urine of patients with squamous cell carcinoma compared to levels in the urine of normal volunteers and patients with nonsquamous cell carcinoma. A 24-h urine specimen was collected from 50 normal volunteers, 50 patients with nonsquamous cell carcinoma, and 42 patients with squamous cell carcinoma. An ELISA using mAbs to the external domain of the EGFR was used to measure levels of the receptor in the urine samples. Measurement of the EGFR ectodomain in the 24-h urine specimens showed detectable levels in 15 (36%) of 42 squamous cell carcinoma patients compared to 3 (6%) of 50 controls and 8 (16%) of 50 nonsquamous patients. It was also observed that 10 (53%) of 19 patients with metastatic squamous cell carcinoma had detectable EGFR ectodomain levels compared to 5 (22%) of 23 squamous cell patients with localized disease. Thus, we concluded that the EGFR ectodomain was detectable in the urine in a significantly higher number of patients with squamous cell carcinoma than normal volunteers or patients with nonsquamous cell carcinoma.
Efficient Directivity Pattern Control for Spherical Loudspeaker Arrays (2008)

With an appropriate control system, directivity pattern synthesis can be accomplished with spherical loudspeaker arrays, e.g. in the shape of Platonic solids or spheres. The application of such devices for the reproduction of natural or artificial directivity patterns poses a relatively young field of research in computer music and acoustic measurements. Using directivity measurements with microphones, the directivity patterns of the individual speakers on the array can be determined. Usually, the directivity of the whole array may be regarded as a linear combination of these patterns. In order to gain control, the measurement data of the linear system need to be inverted. Given L loudspeakers and M microphones, this inversion yields the desired control system, an expensive LxM multiple-input-multiple-output (MIMO) filter. We introduce discrete spherical harmonics transform and decoder matrices to reduce the number of channels required for this control system, thus reducing the computational effort. However, this step often leads to a sparse MIMO-system, in which many off-diagonal transfer functions vanish. If applicable, the computation of the non-zero transfer functions only can be done at even much lower cost. A case study for an icosahedral loudspeaker array is given, showing the properties of the sparse MIMO-system.
Automating UI tests for mobile applications with formal gesture descriptions (2014)

Touch- and gesture-based interfaces are common in applications for mobile devices. By evolving into mass market products, smartphones and tablets created an increased need for specialized software engineering methods. To ensure high quality applications, constant and efficient testing is crucial in software development. However, testing mobile applications is still cumbersome, time-consuming and error-prone. One reason is the devices' focus on touch-based interaction - gestures cannot be easily incorporated into automated application tests. We present an extension to the popular Calabash testing framework solving this problem by allowing to describe gestures with a formal language in tests scripts.
Fistula Incidence and Predictors of Fistula Occurrence after Cleft Palate Repair: Two-Stage Closure versus One-Stage Closure (2010)

This study found a relatively high incidence of fistula formation after cleft palate repair. Although the study populations were not randomized, this study suggests that a two-stage closure has a higher rate of fistula formation when compared with a one-stage closure. This study demonstrates that cleft width at the time of cleft palate repair plays a crucial role in the development of fistulas.
Single antenna physical layer collision recover receivers for RFID readers (2010)

Radio Frequency Identification (RFID) systems often are operated in environments with multiple RFID tags. In such an environment, a conventional RFID system resolves collisions of multiple tags on the medium access control layer, discarding the signals of the physical layer. This paper proposes a zero-forcing and an interference cancellation receiver architecture for an RFID reader, to recover from collisions of two tags on a physical layer and identify tags successfully even in case of a collision. The expected throughput increase is approximately 1.6 times the throughput of a conventional reader. We explore the signal properties of collisions and propose a model for the physical layer. Moreover, we present a method for estimating the signal constellation states in a collision. The entire structure, including channel estimation and both of the proposed receivers are verified with data generated during a measurement. Additionally, performance simulations of the two structures with different channels are shown.
The Effect of Atropine Sulfate on the Course of Influenza Virus Infection (1944)

It has been shown in mice that the administration of atropine sulfate intraperitoneally before the intranasal instillation of influenza A virus decreased the incidence and extent of infection of these animals.
Metal derivatives of azoles. Part 4. Platinum(II) and palladium(II) complexes (1979)

The reaction of [MCl2(L–L)][M = Pd or Pt, L–L = 1,2-bis(diphenylphosphino)ethane (dppe), 1,2-bis(diphenylarsino)ethane (dpae), 2,2′-bipyridine (bipy), or cyclo-octa-1,5-diene (cod)] with alkali and an azole [pyrazole (Hpz), 3,5-dimethylpyrazole (3,5Me2-Hpz), indazole, or tetrazole] or with a potassium pyrazolate gives the [M(azolate-N)2(L–L)] complexes, where the azolato-ligands are unidentate. While I2 or HCl cleaves the metal–nitrogen bonds, the reaction with HBF4 acid affords either mono- or bi-nuclear cations, [M(azole)2(L–L)]2+ or [(L–L)M(µ-pyrazolato-NN′)2M(L–L)]2+ respectively; the latter compounds contain esobidentate pyrazolato-ligands.
Mathematische Modellierung von Wirbelschichtreaktoren (1978)

Abstract Mathematical modelling of fluidized bed reactors . Among the many fluidized bed models to be found in the literature, the two‐phase model originally proposed by May has proved most suitable for accommodation of recent advances in flow mechanics: this model resolves the gas/solids fluidized bed into a bubble phase and a suspension phase surrounding the bubbles. Its limitation to slow reactions is a disadvantage. On the basis of the analogy between fluidized beds and gas/liquid systems, a general two‐phase model that is valid for fast reactions has therefore been developed and its validity is confirmed by comparison with the experimental results obtained by other authors. The model describes mass transfer across the phase interface with the aid of the film theory known from gas/liquid reactor technology, and the reaction occurring in the suspension phase as a pseudo‐homogeneous reaction. Since the dependence of the performance of fluidized bed reactors upon geometry is accounted for, the model can also be used for scale‐up calculations. Its use is illustrated with the aid of design diagrams.
Free Amino Acids in Full‐Term and Pre‐Term Human Milk and Infant Formula (2005)

The concentration of FAA is high in human colostral milk and decreases through the transitional and mature milk stages. FAA is higher in all human milks than in infant formulas.
Entropy-constrained polar quantization: theory and an application to audio coding (2002)

In this work, we develop entropy-constrained unrestricted polar quantizers, where phase quantization depends on the input amplitude. Formulas for amplitude and phase quantization point densities are derived under high-rate assumptions. It is shown that the mean-squared distortion is decreased considerably as compared to strictly polar quantization and approaches that of scalar rectangular quantization asymptotically with increasing rate. The unrestricted polar quantization is generalized to include a weighted error measure, such that it accounts for masking effects of the human auditory system. Both amplitude and phase quantization depend on the perceptual importance of sinusoids. The new method is applied to a sinusoidal audio coder, and is shown to outperform a conventional sinusoidal quantization method where the number of phase quantization bits is the same for all audible sinusoids.
Ultrasensitive fluorometric detection of carbohydrates as derivatives in mixtures separated by capillary electrophoresis. (1991)

Reducing monosaccharides and oligosaccharides, after reductive amination, were separated and detected as their 3-(4-carboxybenzoyl)-2-quinolinecarboxaldehyde (CBQCA) derivatives by capillary electrophoresis/laser-induced fluorescence. Under optimized conditions, the minimum detectable quantities for monosaccharide solutes were assessed at low attomole levels (0.5 amol for the CBQCA derivative of galactose). The system has shown considerable promise for high-sensitivity analysis of both neutral and amino sugars in glycoproteins. Complex oligosaccharides, isolated from bovine fetuin by hydrazinolysis, were also successfully "mapped."
Scattering of focused ultrasound by spherical microparticles (1983)

The scattering of focused ultrasound in water by three different types of microspheres (25–55 μm diameter), with ka&lt;1, was studied. The three scatterers were a spherical glass bubble, solid polystyrene spheres, and hydrogen bubbles. The measurement arrangement consisted of two transducers (transmitter and receiver) of 1.27-cm diameter with focusing lenses mounted on their faces. They were positioned so that their focal regions overlapped and their axes were 60° apart. A swept frequency ultrasonic signal was used, of 30-μs duration, in which the frequency increased linearly from 3.5–6.8 MHz. The glass bubble was mounted on a nylon filament and positioned in the overlapping focal regions. The polystyrene spheres were in solution, and reflections were obtained as they drifted through the focal regions. The hydrogen bubbles were generated by electrolysis and reflections obtained as they rose through the focal regions. From the shape of the echo envelope the frequency dependence of the scattered-pressure amplitude was determined for each scatterer, and significant differences were observed between the echoes from the solid scatterers and the gas bubbles. The experimental results are compared with theoretical predictions.
(<i>N</i>‐Phosphinoamidinate)cobalt‐Catalyzed Hydroboration: Alkene Isomerization Affords Terminal Selectivity (2014)

Herein we establish the utility of a three-coordinate (N-phosphinoamidinate)cobalt(amido) pre-catalyst that is capable of effecting challenging alkene isomerization/hydroboration processes at room temperature, leading to the selective terminal addition of the boron group.
Ferric Ions Are Essential for the Biological Activity of the Hormone Glycine-extended Gastrin (2002)

Amidated and nonamidated gastrins elicit different biological effects via distinct receptors in different tissues. Amidated gastrin 17 stimulates gastric acid secretion and the development of gastric carcinoids, whereas glycine-extended gastrin 17 stimulates proliferation of the colonic mucosa and the development of colorectal cancers. Because glycine-extended gastrin 17 binds two ferric ions with high affinity (Baldwin, G. S., Curtain, C. C., and Sawyer, W. H. (2001) Biochemistry 40, 10741-10746), we have investigated the identity of the iron ligands and the role of ferric ions in biological activity. Here we report the solution structure of glycine-extended gastrin 17, determined by NMR spectroscopy. The spectral changes observed upon the addition of ferric ions revealed that Glu(7) acted as a ligand at the first ferric binding site, and that Glu(8) and Glu(9) acted as ligands at the second ferric ion binding site. Fluorescence quenching experiments confirmed that a GglyE7A mutant bound only one ferric ion. The inability of this mutant to stimulate proliferation or migration in the IMGE-5 cell line and the observation that the iron chelator desferrioxamine selectively blocked the effects of glycine-extended gastrin 17 indicated that binding of a ferric ion to Glu(7) was essential for biological activity. This is the first report of an essential role for a metal ion in the action of a hormone.