Miracle-dz/UniFAR-FTUs huggingface dataset:
Empirical performance studies on implications of shared memory hierarchy resources in multicore computing systems

Multicore processor architectures evolved and became dominant in recent years. It is mainly due to the diminishing returns from the efforts to increase the performance with single execution core on the chip. However multicore architectures involve sharing of resources especially the memory hierarchy resources such as processor caches, prefetchers and bus among the cores. This sharing may cause performance degradation of the programs co-running on multicore processors as compared to their solo run performance. In the literature attempts to solve this problem proposed analytical models, which are very complex and difficult for use in real systems. Many of the previous works proposed specialized support from processor hardware, which may take time to become available in future generations of multicore processors. It is observed that programs running simultaneously on different cores of a multicore processor, have complex interactions due to the use of shared memory hierarchy resources. In this work, we take up a unique approach for modeling the performance implications of such interactions by applying machine learning techniques. Machine learning techniques focus on methods that learn to recognize complex patterns from data. Here we give emphasis to empirical model building. The work demonstrates the application of machine learning techniques to build models for characterization and performance prediction on multicore processor based systems. By characterization, we mean to characterize program memory behavior especially with respect to utilization of shared caches on multicore processors. The model developed for the program memory behavior characterization is later-on used for improving the process scheduling (i.e. CPU scheduling) on multicore processors. We also developed methodology to build a model that predicts performance on multicore processors. Such methodologies can further be utilized in performance oriented research on multicores. We describe the application of the built model for improving the multicore simulation in the AKULA tool-set. AKULA has been recently developed by researchers for rapid prototyping and evaluation of scheduling algorithms for multicore processors. The efficacy of the developed methodologies to build the models, was validated using existing commodity multicore processor based systems. We observed that machine learning techniques are helpful in performance related studies on multicore processor based computing systems. We observed performance improvement up to 76% for 4cores and 54% for 8-cores as compared to default linux kernel process scheduler on our experimental multicore platform by improving process scheduling. The process scheduling was improved by utilizing the model developed using machine learning techniques, so that the interference among the co-running programs due to usage of resources shared
Rural Women Entrepreneurs in Malaysia: What Drives Their Success?

This paper examine the entrepreneurial characteristics (risk taking, ability to explore, confidence and determination, willingness and initiative, vision, creativity and innovation, social networking and strategic thinking) that influence the success of rural women entrepreneur in business. The questionnaire is used as a data collection method that involves a total of 80 rural women entrepreneurs in the northern region of Peninsular Malaysia. Data collected were analysed using SPSS version 20 and SmartPLS 2.0. Findings from the Partial Least Squares analysis revealed that confidence and determination and vision are the main variables that influence business success of women entrepreneur in rural setting environment. In this regard, it is hoped that the findings of this study can help the parties concerned in the design and implementation of the agenda to stimulate the performance of this entrepreneurs to a higher level. It turns out this effort can contributes towards the development and transformation of the economy to achieve developed nation status and a high income by 2020. Implications, limitations as well as suggestions for future research are accordingly discussed in this paper.
Effects of temperature and salinity on growth and survival of the Pacific red snapper Lutjanus peru (Pisces: Lutjanidae) juvenile

The present study evaluates the effects of temperature (25 and 30oC) and salinity (25, 35 and 45 psu) on juvenile growth and survival. All the experiments were carried out under rearing conditions. A total of 270 specimens were used for the experiments. The results showed that more than 86% of the snapper survived at 35 to 45 psu salinity. Significant differences in growth parameters, such as the specific growth rate and weight gain were observed in fish reared at temperatures of 25 and 30°C and salinities of 35 and 45 psu. Increased salinity beyond 45 psu negatively affected growth of the Pacific red snapper used in this trial. The effects of temperature and salinity on growth performance a survival rate indicated that red snapper is an euryhaline species, that may tolerate wide salinity ranges, showing that has a good potential to grow in waters of lower salinity than the sea.
Genetic diversity in Algerian maize (Zea mays L) landraces using SSR markers

In the Sahara, maize (Zea mays L) has been adapted to extreme environmental conditions during the last five centuries; therefore, this germplasm has a potential value as source of tolerance to stress. No previous report of the genetic diversity of Saharan maize has been published so far. The objective of this study was to determine the genetic diversity of a collection of Saharan maize. Fifteen accessions representing the geographic diversity of Algeria were characterized with 18 SSR. Most loci (93%) were polymorphic; the total amount of alleles was 87 and the average of alleles per locus was 5.8. The total genetic diversity (He) was 0.57, being 69% intra-accessions and 31% inter-accession. Eight of the alleles were accession-specific and belonged to six populations. Genetic distance among the 15 accessions resulted in the definition of three main clusters related to the geographic origin. Maize germplasm from the Algerian Sahara can be classified at least in three groups and the most variable acces¬sions are in the southern oasis. Some accessions were highly variable and can be sources of favorable alleles for breeding for tolerance to extreme stress conditions.
The radioresistance analysis of the Deinococcus radiodurans gene DR1709 in human bone marrow cell line KG1a

Tumors continued to grow in many cancer patients after they received radiation therapy, which required higher radiation dose. But when high dose of radiation damaged tumor cells, some normal cells were also killed, which was the largest obstacle that doctors cannot use high dose radiation. If the radiation resistant genes were transformed into the normal tissues, the normal tissues would be protected from being damaged when patients were irradiated. The tolerating doses of all radioresistant (radiation-resistant) genes for this aim were lower than clinical requirement. There were many strong radiation resistant genes inDeinococcus radiodurans genome. If these genes can play their radiation resistant roles in human cells, the predicaments that radiation therapy faced now would be conquered. DR1709 was a radiation resistant gene from D. radiodurans. We found that Escherichia colitransformed with DR1709 had much higher radioresistance than the control. In this paper, human bone marrow cell line, KG1a, was transformed with DR1709. Cells contained DR1709 and the control cells were treated with gamma radiation. Results showed that cells containing DR1709 had much higher survival fraction than those cells which were only transformed with the net vector. After being transformed with DR1709, the expression of GLRX2 was induced in KG1a, while the expression of the putative holocytochrome c-type synthetase was suppressed. Genes from D. radiodurans can be used as a shield for normal cells when they are irradiated. But there were many questions to be resolved before this result was used in clinical treatment. Key words: Radioresistance, DR1709, KG1a, mitochondria.
Writing Skill of Engineering students of Government and Self-financing Colleges: A Comparative Study

This study compares and analyses the writing performance of engineering students studying in government and Self-financing colleges in Tuticorin district. The subjects of the study comprised of 75 randomly selected first year students from three engineering colleges located in Tuticorin district. The elicitation instrument used for the present study was essay writing and the subjects were asked to write an essay on “Advantages and Disadvantages of using mobile phone. ” Descriptive method was adopted for collecting data. The errors were identified and classified into ten categorizations like verb tense, subject-verb agreement, prepositions, conditional sentences, singular/plural form, sentence fragment, word order, spelling, capitalization and double negatives. The results showed that the engineering students made seven most common errors in verb tense, subject-verb agreement, prepositions, conditional sentences, singular/plural form, sentence fragment and word order due to lack of understanding, poor acquisition of grammar rules, intra-lingual errors and interference of the learners’ mother tongue.
Determination of the frequency spectrum of Lamb waves from a sequence of maps of the instantaneous acoustic displacement obtained with TV holography

A novel approach to an established method to calculate the frequency spectrum of Lamb waves is introduced. Lamb wavetrains are generated with the wedge method in aluminium plates, and a sequence of instantaneous acoustic out-of-plane displacement fields at the plate surface is measured with a self-developed double-pulsed TV holography system. This is achieved by emitting two laser pulses synchronized with the piezoelectric transducer that generates the waves and conveniently delayed. As a result, a 2D optical phase-change map, proportional to the aforementioned acoustic displacement field, is obtained for the instant of emission of the second laser pulse. Then, a series of maps is acquired under repeatability conditions by successively delaying the second laser pulse, so that the resulting sequence of maps records successive instants of the propagation of the wavetrain. The frequency spectrum of the wavetrain is obtained from a 3D spatio-temporal Fourier transform of the whole sequence of optical phase-change maps, as the relation between the temporal frequency and the spatial frequency along the principal propagation direction of the wavetrain. The use of a 3D Fourier transform permits to calculate the frequency spectrum regardless of the propagation direction of the wavetrain, with non-perfectly plane wavefronts and also increases the signal to noise ratio with respect to the 2D spatio-temporal Fourier transform approach. Experiments show that the resulting branches for the Lamb modes existing in the wavetrain are in agreement with the theoretical frequency spectrum of Lamb waves in aluminium.
Discovery of two candidate pulsar wind nebulae in very-high-energy gamma rays

We present the discovery of two very-high-energy gamma-ray sources in an ongoing systematic search for emission above 100 GeV from pulsar wind nebulae in survey data from the H.E. S.S. telescope array. Imaging Atmospheric Cherenkov Telescopes are ideal tools for searching for extended emission from pulsar wind nebulae in the very-high-energy regime. H.E. S.S. , with its large field of view of 5 degrees and high sensitivity, gives new prospects for the search for these objects. An ongoing systematic search for very-high-energy emission from energetic pulsars over the region of the Galactic plane between -60 degrees < l < 30 degrees, -2 degrees < b < 2 degrees is performed. For the resulting candidates, the standard H.E. S.S. analysis was applied and a search for multi-wavelength counterparts was performed. We present the discovery of two new candidate gamma-ray pulsar wind nebulae, HESS J1718-385 and HESS J1809-193. H.E. S.S. has proven to be a suitable instrument for pulsar wind nebula searches.
The Whitehead group and the lower algebraic K-theory of braid groups on S2 and R P2

Let M D S or RP 2 . Let PBn.M / and Bn.M / be the pure and the full braid groups of M respectively. If  is any of these groups, we show that  satisfies the Farrell–Jones Fibered Isomorphism Conjecture and use this fact to compute the lower algebraic K–theory of the integral group ring Z , for  D PBn.M / . The main results are that for  D PBn.S/ , the Whitehead group of  , z K0.Z/ and Ki.Z/ vanish for i 1 and n > 0 . For  D PBn.RP / , the Whitehead group of  vanishes for all n > 0 , z K0.Z/ vanishes for all n > 0 except for the cases nD 2; 3 and Ki.Z/ vanishes for all i 1 .
Spatially resolved scanning tunneling spectroscopy of single-layer steps on Si(100) surfaces

Single-layer steps at Si(100) surfaces/interfaces present significant challenges to the quantitative characterization of buried dopant devices as well as the accurate imaging and relocation of fabricated quantum structures. We demonstrate the detailed spatially resolved scanning tunneling spectroscopy study across monolayer step edges on Si(100) surfaces and quantitative determination of the local density of state distributions and behavior of the band gap at step edges. The influence on the local electrostatic environment due to step edge states has been quantified while accounting for the effects of scanning tunneling measurement conditions. The dangling bond states on Si(100) surfaces are utilized as a fingerprint to quantify the local band bending landscape and to make corrections to the experimentally observed surface state energy levels and band gap values at the step edge regions. We observe a significant band gap narrowing behavior along a rebonded single-layer type B step edge on a degenerately boron-doped $p$-type Si substrate.
Exploring the Supply Side of Kaldorian Growth Models

Recent Kaldorian growth models emphasize the need to reconcile the demand-led actual rate of growth and the potential rate of growth. This issue is revisited in light of criticism suggesting it is a “red herring”. An explicit model of the supply side is used to show that, in a mature economy, it is unlikely that steady-state, demand-led growth will always be automatically accommodated by the supply side. The conclusion reached is that attention must, therefore, be paid to the possible emergence of supply constraints on growth, and the implications thereof for steady-state, demand-led growth models.
Loudness Assessment of Music and Speech

An experiment was performed to investigate the assessment of loudness of music and speech using a General Linear Model. Eight expert listeners participated in the experiment. The method of adjustment was used for loudness matching of stimuli. Both stimuli of each pair were selected from a collection of 147 homogeneous audio segments including representative samples of speech, jazz, rock/pop, and classical music, together with pink noise and a 1 kHz tone. For each segment, a reliable estimate of the loudness level was obtained from the model. Both the uncertainty and the subjectivity factors were shown to depend on the class of the stimuli. An alternative categorization based on four MPEG-7 Audio Descriptors was also used for the analysis.
Does slope exposure affect frost ring formation in Picea obovata growing at treeline in the Southern Urals

Topographic complexity in mountainous ecosystems strongly influences plant growth and as such also wood formation. This wood formation can possibly be used to understand topographic variation of the main climatic drivers, e.g. by modulating frost events. Here we test the influence of different slope exposures on the spatio-temporal distribution of frost rings in Siberian spruce (Picea obovata Ledeb.) in the Southern Urals, Russia. We sampled on two opposite slopes, northeast (NE) and southwest (SW), on three elevation levels from the highest single trees to closed canopy forest and analysed frost ring occurrence and their seasonal timing. Frost ring formation at all exposure-elevation combinations was common and mainly concentrated in the early part of the growing season. The age until trees record frost rings was equally similar (until about 35 years) on both slopes and different elevational levels with the exception of the climatically harshest site, the highest elevation on the NE slope. While we could not deduce a direct, easily identifiable climatic driver for the formation of frost rings, our analysis shows high potential to disentangle the complex interplay between climate, site condition and tree growth in mountainous ecosystems.
The Effects of the Value Co-Creation Process on the Consumer and the Company

This article analyzes the concept of value co-creation, which has arisen due to the combination of various modern influences - including economic globalization, changes in consumers’ buying habits, and the emergence of the Internet and social media - that have changed the way companies innovate. These factors also have transformed the traditional marketing paradigm, such that companies must continually innovate to create and maintain long-term relationships with their consumers and thus competitive advantages. This study analyzes practices of co-creation and seeks to establish a theoretical research framework; the authors also identify the key effects and results of co-creation activities for both companies and consumers. By integrating situational and moderating variables, the proposed theoretical model covers multiple dimensions and offers a comprehensive approach to the topic.
Sentadilla Relationship Between Aproximate Entropy and Mean Propulsive Velocity Loss During Half Squat Exercise

Hoy en día, hay un interés creciente en el estudio de los mecanismos producidos durante el entrenamiento de la fuerza. La pérdida de velocidad media propulsiva (VMP) ha sido ampliamente utilizada por entrenadores y científicos deportivos en el control del entrenamiento de la fuerza. El objetivo del presente estudio fue analizar la relación entre la pérdida VMP y la entropía aproximada (ApEn), y demostrar su validez como indicador del entrenamiento de la fuerza. Once varones bien entrenados participaron voluntariamente en este estudio. Los sujetos fueron sometidos a cuatro series de 10 repeticiones del ejercicio de sentadilla en máquina Smith. La intensidad fue del 65% 1RM y 60% del carácter del esfuerzo. Durante la ejecución del ejercicio, VMP y ApEn fueron monitorizados continuamente con una frecuencia de muestreo de 1000Hz mediante dispositivo inercial WIMU PROTM (Sistemas RealTrack, Almería, España). Los resultados muestran que ambas variables (VMP y ApEn) siguen la misma tendencia, lo que sugiere que ApEn es un método válido para la cuantificación de la fatiga local y podría ayudar a comprender el complejo comportamiento muscular durante el entrenamiento de la fuerza.
Analyzing the temporal fluctuations of the reservoir-triggered seismicity observed at Açu (Brazil)

Abstract. The time dynamics of the reservoir-induced seismicity observed in Acu area (Brazil) from November 1994 to April 1997 reveals a super-Poissonian behaviour in the direction of a clustering process, where the occurrence of an earthquake increases the likelihood of the occurrence of a subsequent one. The seismicity shows strong correlation for time scales larger than approximately 1 day up to about four months, being characterized by Poissonian behavior for timescales smaller than 1 day. Processes of formation of fractures in the anisotropic and heterogeneous rockmass, along with pore pressure diffusion driven processes, are hypothesized as physical mechanisms for the appearance of Poissonian and clusterized dynamics respectively.
Millimetre-wave Performance of InAlAs/InGaAs HEMTs Using a UVIII/PMMA Bilayer for 70nm T-Gate Fabrication

We report the first mm-wave measurements for lattice-matched InP HEMTS with 70 nm T-gates made using a UVIII/PMMA bilayer resist. The measured DC gate resistance was 340 Ω/mm, while the extrapolated fT of the 70 nm device was ~300 GHz for a 2x50 µm width device.
A survey of image processing techniques for agriculture

Computer technologies have been shown to improve agricultural productivity in a number of ways. One technique which is emerging as a useful tool is image processing. This paper presents a short survey on using image processing techniques to assist researchers and farmers to improve agricultural practices. Image processing has been used to assist with precision agriculture practices, weed and herbicide technologies, monitoring plant growth and plant nutrition management. This paper highlights the future potential for image processing for different agricultural industry contexts.
Grass hay as a supplement for grazing cattle. II. Ruminal digesta kinetics.

This study evaluated the effects of supplementing a diet of range hay (5.7% crude protein, 68% NDF) with grass hay from subirrigated meadows (16.5% crude protein, 53.5% NDF), or with a 70% soybean meal:30% wheat grain supplement (40% crude protein) on intake and ruminal digesta kinetics. Twelve ruminally fistulated steers were assigned to 3 treatments (4 steers/treatment) at 2 levels of intake. Treatments were: control, range hay; range hay supplemented with meadow hay (meadow hay was 20% of intake); and range hay supplemented with soybean meal:wheat supplement (supplement was 8% of intake). Intake levels were: ad libitum and equal intake (1.5% of body weight). Range hay was Yb-labeled, and meadow hay and soybean meal:wheat supplements were Er-labeled to measure passage. Intake and digestibility of range hay was not affected by supplementation (P > 0.05). During ad libitum intake, total intake (range hay + supplement) was greater (P > 0.05) for supplement treatments than for the control. No supplement treatment X level of intake interactions were detected (P > 0.05). Total digestibility (range hay + supplement) was greater (P 0.05) for control and meadow hay treatments. Ruminal passage rate (% hour-1), total tract mean retention time, and intestinal transit time of range hay did not differ among treatments (P > 0.05), but ruminal passage rate, total tract mean retention time, and intestinal transit time were greater (P < 0.01) with ad libitum than equal intake. We conclude that a meadow hay supplement produced similar effects on ruminal kinetics and intake of range hay as a soybean meal:wheat supplement.