Miracle-dz/UniFAR-FTUs huggingface dataset:
Superconducting TESLA cavities

The conceptional design of the proposed linear electron-positron collider TESLA is based on 9-cell 1.3 GHz superconducting niobium cavities with an accelerating gradient of Eacc >= 25 MV/m at a quality factor Q0 > 5E+9. The design goal for the cavities of the TESLA Test Facility (TTF) linac was set to the more moderate value of Eacc >= 15 MV/m. In a first series of 27 industrially produced TTF cavities the average gradient at Q0 = 5E+9 was measured to be 20.1 +- 6.2 MV/m, excluding a few cavities suffering from serious fabrication or material defects. In the second production of 24 TTF cavities additional quality control measures were introduced, in particular an eddy-current scan to eliminate niobium sheets with foreign material inclusions and stringent prescriptions for carrying out the electron-beam welds. The average gradient of these cavities at Q0 = 5E+9 amounts to 25.0 +- 3.2 MV/m with the exception of one cavity suffering from a weld defect. Hence only a moderate improvement in production and preparation techniques will be needed to meet the ambitious TESLA goal with an adequate safety margin. In this paper we present a detailed description of the design, fabrication and preparation of the TESLA Test Facility cavities and their associated components and report on cavity performance in test cryostats and with electron beam in the TTF linac. The ongoing R&D towards higher gradients is briefly addressed.
Prediction of Red Mud Bound-Soda Losses in Bayer Process Using Neural Networks

In the Bayer process, the reaction of silica in bauxite with caustic soda causes the loss of great amount of NaOH. In this research, the bound-soda losses in Bayer process solid residue (red mud) are predicted using intelligent techniques. This method, based on the application of regression and artiﬁcial neural networks (AAN), has been used to predict red mud bound-soda losses in Iran Alumina Company. Multilayer perceptron (MLP), radial basis function (RBF) networks and multiple linear regressions (MLR) were applied. The results of three methodologies were compared for their predictive capabilities in terms of the correlation coefficient (R), mean square error (MSE) and the absolute average deviation (AAD) based on the experimental data set. The optimum MLP network was obtained with structure of two hidden layer including 13 and 15 neurons in each layer respectively. The results showed that the RBF model with 0.117, 5.909 and 0.82 in MSE, AAD and R, respectively, is extremely accurate in prediction as compared with MLP and MLR.
Development and validation of a multiplexed-tandem qPCR tool for diagnostics of human soil-transmitted helminth infections

Soil-transmitted helminths (STH) are a major cause of morbidity in tropical developing countries with a global infection prevalence of more than one billion people and disease burden of around 3.4 million disability adjusted life years. Infection prevalence directly correlates to inadequate sanitation, impoverished conditions and limited access to public health systems. Underestimation of infection prevalence using traditional microscopy-based diagnostic techniques is common, specifically in populations with access to benzimidazole mass treatment programs and a predominance of low intensity infections. In this study, we developed a multiplexed-tandem qPCR (MT-PCR) tool to identify and quantify STH eggs in stool samples. We have assessed this assay by measuring infection prevalence and intensity in field samples of two cohorts of participants from Timor-Leste and Cambodia, which were collected as part of earlier epidemiological studies. MT-PCR diagnostic parameters were compared to a previously published multiplexed qPCR for STH detection. The MT-PCR assay agreed strongly with qPCR data and showed a diagnostic specificity of 99.60–100.00% (sensitivity of 83.33–100.00%) compared to qPCR and kappa agreement exceeding 0.85 in all tests. In addition, the MT-PCR has the added advantage of distinguishing Ancylostoma spp. species, namely Ancylostoma duodenale and Ancylostoma ceylanicum. This semi-automated platform uses a standardized, manufactured reagent kit, shows excellent run-to-run consistency/repeatability and supports high-throughput detection and quantitation at a moderate cost.
Quantum Brownian motion on a triangular lattice and Fermi-Bose equivalence: an application of boundary state formulation

We discuss the Bose-Fermi equivalence in the quantum Brownian motion (QBM) on a triangular lattice, mapping the action for the QBM into a string theory action with a periodic boundary tachyon potential. We construct new Klein factors which are more appropriate than the conventional ones to deal with the quantum field theories defined on a two dimensioanl space-time with boundaries. Using the Fermi-Bose equivalence with the new Klein factors, we show that the model for the quantum Bownian motion on a triangular lattice is equivalent to the Thirring model with boundary terms, which are quadratic in fermion field operators, in the off-critical regions and to a SU(3) × SU(3) free fermion theory with quadratic boundary terms at the critical point.
Radar Signal Processing Method Based on the Lateral Distance Element Synthesis Processing

Ultra Wideband (UWB: Ultra-Wideband) with high spatial resolution and positioning measurement, has the ability of suppressing the multi-path effect and penetration loss medium. It contains abundant target information in the received signal. The compressed sensing theory is introduced into the imaging technology of radar signal. In order to reduce the number of the traditional algorithm of tracking compressive sampling matching, improve measurement precision reconstruction, a compressed sensing based on peak signal-to-noise ratio compressive sampling matching tracking algorithm is proposed. Based on a ultra wideband detection technology, and using the temporal correlation between the data to using compress, we propose an local adaptive estimate threshold. Finally, comparison and analysis with the conventional image processing effect, it shows that the algorithm improves people accuracy of ultra wideband radar imaging judgment. It promotes the development and application of ultra wideband radar also.
The relationship between allocation of equal employee benefits and employee job satisfaction and performance at the Kenya Pipeline Company, Kenya

The purpose of this paper is to examine the effects of awarding equal employee benefits on employees' level of job satisfaction. It also explores the link between equal employee benefits and job performance based on a study conducted at the Kenya Pipeline Company, Eldoret Branch in Kenya. The study employed the interpretive case study methodology and descriptive survey research to obtain in depth information from the respondents. The target population comprised 180 employees at KPC, Eldoret branch. Stratified random sampling was used to select 49 employees, and purposive sampling to sample 6 senior management staff. Data was collected using a questionnaire, document analysis and an interview schedules. Documents such as the company's journals and the strategic plan were analyzed so as to complement data obtained through the questionnaire and the interview schedule. Descriptive and inferential statistics were used to analyze the data. The study established that there is a positive correlation between equal employee benefits and level of job satisfaction among employee. There was also a significant correlation between equal employee benefits and increased efficiency as well as profitability. Conversely, there was no significant relationship between equal employee benefits and corporate image, employee retention, cost reduction and staff morale. From the findings, it is essential for the company to harmonize the benefits package so as to cushion itself and its employees against the harsh effects of inflation. Lastly, the company ought to review its benefits award structure so as to make it more competitive, equitable and transparent. The study contributes knowledge useful in streamlining employee rewards systems in a bid to attain competitive advantage, improved performance and good corporate image. The company will also attract and retain the best talent as a result of adopting best practices in employee benefits management, as the management will benefit from good relations with its employees and will save on costs associated with lockouts and strikes.
Strategic Instruments for University Performance Evaluation in the Context of the Economy Based on Knowledge

The first objective of knowledge economy is to capitalize on the human resource through the potential of the knowledge and cognitive skills of the latter. An important role in educating and training the human resource in the economic field is played by specialized universities, which, through master programs and by increasing the performance of the educational act, determine a better insertion of the master degree students in labor market. Starting from the standard form of the Balanced Scorecard, in this paper there has been drawn a strategic instrument for evaluating university performance and the axes and strategic objectives with implications on evaluation and improving educational performance have been founded. After questioning a sample of 147 master degree students, and according to the analysis of the master program accreditation file, the main factors that contribute to increasing university performance have been identified using the regression analysis with dummy variables and the logistic regression analysis. In order to obtain the results of the research, the data has been processed using SPSS 15.0.
GRIZZLY BEAR DEMOGRAPHICS IN AND AROUND BANFF NATIONAL PARK AND KANANASKIS COUNTRY, ALBERTA

Abstract The area in and around Banff National Park (BNP) in southwestern Alberta, Canada, is 1 of the most heavily used and developed areas where grizzly bears (Ursus arctos) still exist. During 1994–2002, we radiomarked and monitored 37 female and 34 male bears in this area to estimate rates of survival, reproduction, and population growth. Annual survival rates of bears other than dependent young averaged 95% for females and 81–85% for males. Although this area was largely unhunted, humans caused 75% of female mortality and 86% of male mortality. Females produced their first surviving litter at 6–12 years of age (x̄ = 8.4 years). Litters averaged 1.84 cubs spaced at 4.4-year intervals. Adult (≥ 6-years-old) females produced 0.24 female cubs per year and were expected to produce an average of 1.7 female cubs in their lifetime, based on rates of reproduction and survival. Cub survival was 79%, yearling survival was 91%, and survival through independence at 2.5–5.5 years of age was 72%, as no dependent young older than yearlings died. Although this is the slowest-reproducing grizzly bear population yet studied, high rates of survival seem to have enabled positive population growth (λ = 1.04, 95% CI = 0.99–1.09), based on analyses using Leslie matrices. Current management practices, instituted in the late 1980s, focus on alleviating human-caused bear mortality. If the 1970–1980s style of management had continued, we estimated that an average of 1 more radiomarked female would have been killed each year, reducing female survival to the point that the population would have declined.
A Collaborative methodology intended for CBIR by means of contour

— content based image retrieval uses illustration stuffing to explore images from the huge range image database. Conventional methods of indexing and recovery using simply keywords have turned out to be obsolete. To trounce the problems faced in traditional methods we have developed substitute methods to portray images using their illustration content. For probing an image from the record, images need to be described by definite features. The most imperative attribute to depict an image is its shape. Narrative of Shape is denoted by assorted techniques which are in general separated into two broad categories boundary-based and region-based methods. in view of the fact that the human visual system itself focuses on edges and ignores identical regions, concentrates on boundary-based representations. Region based image retrieval techniques segment an image into a number of regions that work as local descriptor. Our proposed method RBBM (Region Boundary Based Method) employs these two different techniques collectively to give the accurate retrieval from large database with rapidity. The experimental results show the accuracy of retrieval when compared to other approaches.
Fate of transgenic DNA from Bt corn and roundup ready soybean meal in broilers fed GMO feed.

The aim of the study was to determine the fate in the digestive tract of recombinant Cry1A (b) and epsps genes, from genetically modified (GM) insect resistant Bt corn and from glyphosate tolerant GM soybean meal (Roundup Ready). The possibility of the transfer of transgenic DNA from feed to chicken tissues was also evaluated. In a 42-d floor pen experiment, Ross 308 broilers were fed corn-soybean meal diets (55%-60% of corn and 32%-37% of soybean meal). All the experimental diets were isonitrogenous and isoenergetic and contained non-modified corn and soybean meal (group I – control), non-modified corn and GM soybean (group II), GM corn and non-modified soybean meal (group III) or GM corn and GM soybean meal (group IV). At the 43 d of age, the broilers were slaughtered and DNA was extracted from gut content and tissues and was analysed for the presence of transgenic fragments using PCR method. The used methods allowed detecting 0.1% GM DNA in total DNA isolated from samples. The transgenic sequences from single-copy genes of soybean (172 bp) and corn (170 bp) were detected only in content of crop and gizzard of broilers fed GM plants. There were no traces of transgenic DNA in duodenum, jejunum, ileum, and caecum digesta, excreta, and in blood, liver, spleen, and breast muscle. Similarly, no small fragments from other single-copy genes of soybean and corn (recombinant 35s promoter and NOS terminator, and endogenous lectin and invertase genes) were detected in broiler tissues. The obtained data indicated that transgenic DNA sequences from Bt corn and Roundup Ready soybean are well digested in the gastrointestinal tract and are not transferred to broiler tissues.
Instantly Investigating the Adsorption of Polymeric Corrosion Inhibitors on Magnesium Alloys by Surface Analysis under Ambient Conditions

Surface engineering of magnesium alloys requires adequate strategies, processes and materials permitting corrosion protection. Liquid formulations containing corrosion inhibitors often are to be optimized according to the demands of the respective substrate and following the service conditions during its application. As an interdisciplinary approach, a combination of several techniques for instantly monitoring or elaborately analyzing the surface state of magnesium was accomplished in order to characterize the performance of new adsorbing sustainable amphiphilic polymers which recently were developed to facilitate a multi-metal corrosion protection approach. The application of established techniques like Contact Angle measurements and X-ray Photoelectron Spectroscopy investigations was supplemented by introducing related and yet faster online-capable and larger-scale techniques like Aerosol Wetting Test and Optically Stimulated Electron Emission. Moreover, an inexpensive setup was configured for scaling the inset and the extent of degradation processes which occur at local electrochemical circuits and lead to hydrogen bubble formation. Using these analytical tools, changes of the surface state of emeried AM50 samples were investigated. Even in contact with water, being a moderate corrosive medium, the online techniques facilitated detecting surface degradation of the unprotected magnesium alloy within some seconds. In contrast, following contact with a 1 weight% formulation of a polymeric corrosion inhibitor, surface monitoring indicated a delay of the onset of degradation processes by approximately two orders of magnitude in time. Mainly based on the spectroscopic investigations, the corrosion inhibiting effects of the investigated polymer are attributed to the adsorption of a primary polymer layer with a thickness of a few nanometers which occurs within some seconds. Immersion of magnesium for several hours brings up a protective film with around ten nanometers thickness.
Parallel influence of climate on the behaviour of Pacific killer whales and Atlantic bottlenose dolphins

The grouping behaviour of animals is governed by intrinsic and extrinsic factors which play an important role in shaping their social organization. We investigated the influence of ocean climate variation on the grouping behaviour of two widely separated populations of cetaceans, inhabiting north Atlantic and north Pacific coastal waters. The group size of both bottlenose dolphins in the Moray Firth, UK, and killer whales in Johnstone Strait, Canada, varied from year to year in relation to large-scale ocean climate variation. Local indices of prey abundance were also related both to climate indices and predator group sizes. The cetaceans tended to live in smaller groups when there was less salmon available in both areas which seem to occur 2 years after a lower phase of the North Atlantic and Pacific Decadal Oscillations. These findings suggest that, even in highly social mammals, climate variation may influence social organization through changes in prey availability.
A Comparative Evaluation of Snow Depth and Snow Water Equivalent Using Empirical Algorithms and Multivariate regressions

Space-borne passive microwave (PM) radiometers have provided an opportunity to estimate Snow water equivalent (SWE) and Snow depth (SD) at both regional and global scales. This study attempts to employ empirical algorithms and multivariate regressions (MRs) using Special Sensor Microwave Imager (SSM/I) brightness temperature (TB) in order to achieve an accurate assessment of SD and SWE which well suited for the interest study area. The SSM/I data consist of Pathfinder Daily EASE-Grid TB supplied by the National Snow and Ice Data Centre (NSIDC). For the present study, satellite-based data were gathered from 1992 through 2015 in two versions (v1: 09 July 1987 to 29 April 2009; v2: 14 December 2006 up to now). The results indicated that a stepwise multivariate nonlinear regression (MNLR) outperformed (r = 0.41, and 0.344 for SD and SWE, respectively) other methods. However, a fairly unsatisfactory correlation between ground-based and satellite derived data has been confirmed due to the sparse ground based data and not considering other parameters (snow density, moisture, etc.)
A Mediating Role of Customer Value Between Customer Engagement and Loyalty: An Applied Study in Commercial Banks in Egypt

Purpose: The focus of this paper is providing a suggested approach to the nature of the relationship between the customer engagement and customer loyalty through the mediation role of the customer value. Methodology/approach: Through its selection of commercial banks in Egypt and the use of statistical analysis method SPSS.11. The data was analyzed using the AMOS pathway analysis to identify the nature of the relationships between variables. Findings: An artistic approach to understanding develop a model of the the relationship between customer value and customer loyalty within a mediating role of customer engagement in some commercial banks in Egypt. The research found that CE and CL improve the ability to building more effective customer service.
Total phosphorus thresholds for regime shifts are nearly equal in subtropical and temperate shallow lakes with moderate depths and areas

1. Published research suggests that the total phosphorus (TP) thresholds for the regime shifts between a clear-water state dominated by submersed macrophytes and a turbid-water state dominated by phytoplankton in shallow lakes vary with forms of lake basins and climates. However, such hypotheses remain untested by direct field evidence. We therefore tested the hypotheses with empirical data from subtropical lakes on the Yangtze floodplain and also from other lakes in temperate to tropical zones.
An upper bound for the double outer-independent domination number of a tree

Abstract A vertex of a graph is said to dominate itself and all of its neighbors. A double outer-independent dominating set of a graph G is a set D of vertices of G such that every vertex of G is dominated by at least two vertices of D, and the set V(G)∖D is independent. The double outer-independent domination number of a graph G, denoted by γdoi(G), is the minimum cardinality of a double outer-independent dominating set of G. We prove that for every nontrivial tree T of order n, with l leaves and s support vertices we have γdoi(T) ≤ (2n + l + s)/3, and we characterize the trees attaining this upper bound.
Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)

The effect of Passiflora incarnata ’s extract (PE) on gonadal maturation in young tilapia ( Oreochromis sp.) was evaluated by administering feed supplemented with PE during the first 90 days immediately after yolk sac assimilation. One hundred and fifty fishes with 0.01 ± 0.003 g average body weight were randomly distributed in ten tanks with the following duplicated treatments: commercial feed (NAT), NAT with 60 mg kg -1 of 17-MT (MET), and NAT supplemented with 31.10 mg, 62.30 mg and 124.60 mg of PE g -1 (P1, P2, P3 respectively). There were no significant differences ( P > 0.05) in the average body weight or in the male-female sex ratio between the experimental treatments (P1, P2, P3) and the control (NAT). Statistical differences in the gonadosomatic index (GSI) and the percentage distribution of gonadal maturation stages (PDGMS) were observed in females of P2 and P3. With respect to the females of NAT, the treatments P2 and P3 presented a lower GSI and a lower percentage of females in stage III (GSI: 1.11 ± 0.88, 1.04 ± 0.99 and 1.71 ± 0.72; PDGMS: 45, 30 and 80%, respectively). No significant differences in GSI or PDGMS were observed in the males. The results suggest that the observed differences in GSI and PDGMS in females are unrelated to antinutritional effects. Instead, these differences could be due to a possible antiestrogenic effect attributed to the possible anti-aromatase action of some of its compounds. Future research focusing on the use of PE for reproductive control in tilapia is suggested.