Miracle-dz/UniFAR-FTUs huggingface dataset:
Analyses of Factors Influencing Travel Consumers’ Satisfaction and Loyalty as Revealed by Online Communication Platform: A Case Study of TripAdvisor

The continuing evolution of on-line platforms, which are now at the heart of modern commerce, has had a considerable impact on the tourism and hospitality business. On-line platforms are often less capital intensive than the business that they intermediate – allowing them to achieve significant market power in short periods of time. A concentration of tourism market power is rarely beneficial for travel consumers. The widespread public use of TripAdvisor has effectively positioned itself as a new breed of moderate Travel Agencies and hotels by launching its Instant Booking service recently. It has generated a number of conditions a key marketing opportunity – that have been game-changers – in both beneficial and detrimental ways – to tourism and hospitality business. As a result, many travel agencies and hotels in the 21 st century have had to make considerable adaptations to remain solvent and relevant. This study extends the body of knowledge on the influence of perceived quality service (PQS) and perceived price (P) on post-purchase perceptions, satisfaction, intention behavior and loyalty of travel consumers, by enriching its content in the area of tourism and hospitality. Moreover, understanding how online tourists’ reviews – as powerful source of information - affecting online travel agencies and hotel booking decisions. The purpose of this study is to investigate how TripAdvisor assessment in travel agencies and hotels in Egypt that contributes to satisfaction and loyalty from the consumer perspective, considering the online dimension of recommendations. This research study applies research method that a quantitative approach directly enriches the research study with different viewpoints from online tourists’ reviews (as stakeholders) and provides a better understanding of study problems. Findings revealed significant inter-relationships are obtained in TripAdvisor use perception, satisfaction with both the travel agency and the hotel, dimensions of loyalty in travel services and the mediating effect of positive online tourist intention to recommend the travel agency and hotel is confirmed. Research limitations/implications – Future research can replicate these interrelationships in other travel services and employ multidimensional scales to measure online tourist attitudes and behavior.
On the long-time behaviour of age and trait structured population dynamics

We study the long-time behaviour of a population structured by age and a phenotypic trait under a selection-mutation dynamics. By analysing spectral properties of a family of positive operators on measure spaces, we show the existence of eventually singular stationary solutions. When the stationary measures are absolutely continuous with a continuous density, we show the convergence of the dynamics to the unique equilibrium.
Image Analysis on Fingertip Video To Obtain PPG

Cardiovascular problems are evolving as the chief cause of death worldwide. Heart Rate, Blood Pressure, Respiratory Rate, Oxygen Saturation, Systolic Upstroke Time, Heart Beat duration, Diastolic time, RR intervalare some important physiological parameters that help to monitor our daily health condition. Those parameters are very useful to determine if a person is suffering from any cardiovascular problems or not based on daily data collection and monitoring over a certain period of time and in this context machine learning algorithms will be very helpful for developing a smart cardiovascular tele-monitoring & recommendation system for better lifestyle. Irregularities in the heart signal can pop up a serious indication for upcoming cardiac problem. Here, we have concentrated on intensity variation based heart rate calculation process from PPG with major analysis on captured contact video. Here we have used normal handy smart phone camera which is available to everyone and able to capture fingertip videos of flowing blood in the vessels with visible light wavelength. In this paper, we have performed analysis on captured videos for accurate health parameter capturing and compared it with standard devices (FDA approved).
Effect of different temperature humidity indices onantioxidant parameters in Surti buffaloes

The present study was conducted on 20 Surti buffalo heifers of 16 to 21 months age maintained under standard feeding and management practices. They were categorized based on their exposure to natural environment as Group I (Hot dry season: THI1), Group II- (Hot humid season: THI2) and Group III as Control group (Comfortable season: THI3). Whole blood and serum samples were collected from all the groups and analyzed for antioxidant parameters, viz., superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase, lipid peroxidation (LPO) and total antioxidant status (TAS). The temperature humidity index (THI) calculated for Group I, Group II and Group III were 81.70 (THI1), 80.30 (THI2) and 70.00 (THI3). For Group I, Group II and Group III, concentration of SOD (U) was 5.29±0.06, 4.65±0.04 and 2.94±0.09; GPx (U/ml) was 43.63±0.71, 36.40±0.56 and 25.84±1.00; catalase (µmoles/min/ml) was 1,609.17±45.93, 1,322.00±18.65 and 1,106.35±45.07; LPO (nM of MDA/ml of packed cells) was 6.00±0.13, 3.45±0.09 and 2.87±0.14 and TAS (mmol/l) was 5.18±0.11, 2.90±0.09 and 2.37±0.13, respectively. Significantly (P<0.01) higher levels of SOD, GPx, catalase, TAS and LPO were observed in hot dry season (THI1) as compared to hot humid (THI2) and comfortable (THI3) seasons. Increased levels of SOD, GPx, catalase, TAS and LPO indicated that hot dry season is more stressful for animals as compared to hot humid season in Surti buffaloes as they are inhabitants of hot humid region.
Effects of agricultural water withdrawal in the fluvial habitat of benthic macroinvertebrates in Chile

The climatic and geographic characteristics of Central Chile allow the concentration of high water demand from agricultural activities in low order rivers. Changes in the hydrologic regime of these rivers should affect the habitat availability of endemic benthic macroinvertebrates. However, the impact of water diversion in the Chilean rivers is poorly understood. Goals. We want to determine the effects of water abstraction in the habitat of benthic macroinvertebrates with biotic indices. Methods. We sampled nutrients, macroinvertebrates, and morphological characteristics of three rivers affected by agricultural water extractions in the Itata basin (Chile). We assess the habitat alteration and benthic macroinvertebrate assemblage through the measurement of depth, current velocity, Froude number, wetted width/depth ratio, dissolved oxygen, and biotic indices. Results. Traditional methods of constructing the weirs affect the water level in the sampling sites. Most of the habitat parameters shows variation between the control and impact sampling sections, but only Shannon and Simpson diversity indices were statistical different. Conclusions. The increase in taxonomical resolution of benthic macroinvertebrates in the Mediterranean zone of Chile could improve detection of environmental impacts of water extraction. We suggest the use of biological traits in order to determine specific relationships between water withdrawals and environmental changes in low order rivers of Chile affected by water extraction.
Optimal control for multi-lane motorways in presence of vehicle automation and communication systems

Abstract The presence and exploitation of Vehicle Automation and Communication Systems (VACS) while defining optimal control strategies in motorway traffic flow control is addressed in this paper. VACS are supposed to act both as sensors (providing information on traffic conditions) and as actuators, allowing the application of ramp metering, variable speed limit control, and lane changing control. A quadratic programming problem is defined on the basis of a novel first-order traffic flow model for multi-lane motorways. An example is presented in order to illustrate the effectiveness of the proposed optimisation problem.
How changes in context affect human behaviours and performance in mobile computing systems

Many real world mobile device interactions occur in context-rich environment. Information about how users react to changes in context and perform in context-rich environments is crucial to informing strategies for mobile device design. Thus, the context of use must be considered because there are multiple tasks taking place in many mobile computing interactions. However, few empirical studies on mobile computing regarding changes in context impact users' abilities to perform effectively are conducted to date. In this investigation, context is presumed to be a set of conditions or user states that influence the ways in which a human interacts with a mobile computing device. In order to sense and record relevant contextual factors, the investigations have been conducted to enable a device to sense characteristics of mobility, such as motion and changes in environmental conditions like lighting. The result indicates that the way in which users' behaviour is affected by changes in context is not uniform.
Evaluation of large-eddy simulations forced with mesoscale model output for a multi-week period during a measurement campaign

Abstract. Large-eddy simulations (LESs) of a multi-week period during the HD(CP)2 (High-Definition Clouds and Precipitation for advancing Climate Prediction) Observational Prototype Experiment (HOPE) conducted in Germany are evaluated with respect to mean boundary layer quantities and turbulence statistics. Two LES models are used in a semi-idealized setup through forcing with mesoscale model output to account for the synoptic-scale conditions. Evaluation is performed based on the HOPE observations. The mean boundary layer characteristics like the boundary layer depth are in a principal agreement with observations. Simulating shallow-cumulus layers in agreement with the measurements poses a challenge for both LES models. Variance profiles agree satisfactorily with lidar measurements. The results depend on how the forcing data stemming from mesoscale model output are constructed. The mean boundary layer characteristics become less sensitive if the averaging domain for the forcing is large enough to filter out mesoscale fluctuations.
Mutual Authentication Technique for Isolation of Sinkhole Attack in WSNs

: The wireless sensor networks (WSN’s) is the type of network in which sensor nodes sense the environmental conditions and pass sensed information to the base station. To reduce energy consumption of the network LEACH protocol is applied which divide whole network in clusters and in cluster, cluster heads are selected on the basis of energy, distance. The sinkhole attack is triggered in the network which reduce network performance. The mutual authentication technique is proposed which detect malicious nodes from the network. The performance of proposed technique is tested in NS2 software in terms of various parameters
CAROTENOIDS DIGESTION IN AFRICAN STARGRASS (Cynodon plectostachyus) DETERMINED WITH In Situ TECHNIQUES IN CATTLE

Dry matter (DM) and total carotenoids disappearane in the rumen and intestinal passage of African stargrass (AS) were measured in 4 Holstein steers using rumen In situ and a mobile nylon bag technique in duodenum, respectively. A higher proportion of DM and total carotenoids (P<0.05) in the AS disappeared in the rumen during first 12 h. Correlation value between the disappearance of DM and total carotenoids in the rumen was 0.997 (P < 0.001). Fifty three percentage of the carotenoids disappeared from the duodenal bags in the lower digestive tract when it was not incubated in the rumen. Carotenoids disappearance in small intestine was lower in the samples incubated in rumen. These results show an availability of 70% in carotenoids into the total digestive tract. In conclusion, AS is a high availability of total carotenoids in the digestive tract of ruminants and is perhaps one of the main sources of food that affects the yellow color of fat in cattle.
Value of SPECT/CT in Cervical Vertebra Metastasis Mimicking Residual Thyroid Tissue on Planar I-131 Scan

A total thyroidectomy was performed on a 62 year-old male patient with 3.5 cm cold nodule and diagnosis of differentiated thyroid carcinoma was made. He received 200 mCi of I-131 because pulmonary metastases were founded on computed tomography and his serum thyroglobulin level was high (>300 ng/ml). Post-therapy planar whole body scan showed diffuse pulmonary tracer accumulation consistent with pulmonary metastases, 3 foci of activities in the thyroid region of neck and physiological tracer uptake in the liver. Initially, it was considered that high serum thyroglobulin level was caused by pulmonary metastases and activities in the neck were due to residual thyroid tissue. But, single photon emission computed tomography/computed tomography (SPECT/CT) images demonstrated that the activity in the midline of the neck was originated in the cervical (C5-6) vertebra due to bone metastasis. Cervical vertebra metastasis in the same level with probable residual thyroid tissue in planar I-131 whole body scan can be easily overlooked. We considered that the complementary SPECT/CT for head and neck region should be used not only in the selected differentiated thyroid patients with unexpected abnormal activity but also in patients with expected residual thyroid tissue, salivary gland or mouth activity in planar I-131 whole body scan.
Some Human Factors Considerations for Designing Mixed Reality Interfaces

Abstract : Mixed Reality (MR) refers to the general case of combining images along a continuum which ranges from purely real (unmodelled) data, such as raw video images, to completely virtual images, based on modelled environments. Depending on where a particular display mode lies on the reality-virtuality continuum, MR encompasses the case of Augmented Reality (AR), as well as the case of Augmented Virtuality (AV). In designing human-machine interfaces for mixed reality applications, a number of considerations are discussed which may potentially impact the effectiveness of the design. In addition to the real-virtual image content (which is closely related to how much knowledge is available about the images being displayed), these include the (visual) perceptual impact of the display technologies used for combining real and virtual images, which manifest themselves in particular when virtual objects must be aligned with real ones, for applications such as AR mediated teleoperation. Other considerations include where the user's particular viewpoint lies along a continuum ranging from ego- to exo-centricity, as well as control-display congruence issues constrained by the other MR factors.
Classical Ergodicity and Modern Portfolio Theory

What role have theoretical methods initially developed in mathematics and physics played in the progress of financial economics? What is the relationship between financial economics and econophysics? What is the relevance of the “classical ergodicity hypothesis” to modern portfolio theory? This paper addresses these questions by reviewing the etymology and history of the classical ergodicity hypothesis in 19th century statistical mechanics. An explanation of classical ergodicity is provided that establishes a connection to the fundamental empirical problem of using nonexperimental data to verify theoretical propositions in modern portfolio theory. The role of the ergodicity assumption in the ex post/ex ante quandary confronting modern portfolio theory is also examined.
The Determination of Antioxidant Activity of Some Sage Populations of In The Marmara Region

Methanolic extracts of 39 different population of three species of Salvia (Salvia fruticosa Mill. 20 sample, Salvia pomifera Mill. 4 sample and Salvia tomentosa Mill. 15 sample) were analyzed for their antioxidant properties. Samples were collected from different natural ecological areas in Marmara Region in Turkey. The antioxidant activity (AA) was investigated with the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method and expressed as trolox equivalents (TE). The amount of total phenolics was determined by using Folin–Ciocalteu method and flavonoid contents in the extracts were determined by a colorimetric method. The AA values of the spices ranged from 287. 57 to 450.51 µmol trolox equivalent (TE) / 100 g dry weight (DW). The total phenolic and flavonoid content ranged from 488.07 to 1654.89 mg of gallic acid equivalents (GAE) / 100 g DW and 664.03 to 3693.20 mg of catechin equivalents (CE) / 100 g DW respectively
BACTERIAL AND PRIMARY PRODUCTION UNDER HYPERTROPHIC CONDITIONS

Many highly eutrophic waters are dominated by Cyanobacteria non-edible for zooplankton. This dominance of large phytoplankton and its exudation as well as the low biomass of small phytoplankton lead to a high ratio of exudation to edible primary production. As bacteria can effectively use exudates, they could be an important alternative food source for zooplankton. We investigated primary production (PP) in various size fractions and bacterial production (BP) in the hypertrophic Bautzen reservoir (Germany) in order to test whether (1) high PP can promote high BP and (2) BP can amount to similar values as particulate PP of the edible fraction. The main part of PP was produced by non-edible colonies of Microcystisspp. in summer and fall. The dynamics of BP and PP showing maximum activities in July and October were closely coupled. The strong relationship between BP and PP (r2 = 0.98) indicates that allochthonous DOC (dissolved organic carbon) should be of little importance for bacteria. Consequently, PP was their main DOC source, but exudation could not cover bacterial organic carbon demand at the maxima of BP. The mean ratio of BP to PP was 3.5%, a low value typical for hypertrophic waters. However, BP amounted to similar or higher values than particulate PP of the edible fraction with respect to carbon production in summer and fall. Since the dominating daphnids are considered to be able to graze effectively on bacteria, it must be assumed that bacteria should be an equally important food source for Daphnia as edible phytoplankton.
The Dormancy Mechanism and Bioactivity of Hydroquinone Extracted from Podophyllum hexandrum Royle Seed

Ethyl ether extraction from seed of Podophyllum hexandrum Royle (P.hexandrum) was separated by GC-MS and nineteen compounds were identified including fatty acid, alkenes, etc. most of which had been proved to have inhibited bioactivities that could be the primary reason of unhealthy germination for P.hexandrum seeds. Hydroquinone was one of the nineteen compounds and the first time identified from P.hexandrum seed in this experiment which had never been reported about its bioactivity before. The further study of its bioactivities was conducted on wheat and vitro culture of embryo of P.hexandrum seed showed that hydroquinone played a positive role and shortened the cycle in growth and development compared to IAA, NAA, BAP, GA3, Which indicates that hydroquinone has similarity to auxin on plant growth and development.
3D surface reconstruction in telepresence systems

Registering three-dimensional models is possible thanks to the use of multi view captures or the readings provided by depth sensors, which can be applied in Augmented or Virtual Reality systems. In this sense, this project focuses on a Telepresence system, which aims to register a room with depth sensors to be visualized by an external person, who is immersed in this new environment using Virtual Reality glasses. For this reason, the objective of the thesis is to integrate a 3D surface reconstruction method in the Telepresence system. For this, several algorithms have been studied, evaluating the quality of the reconstruction in different conditions, both in the application of the algorithms and in the data where the algorithms are applied. Next, the one that best suits the Telepresence platform is selected and integrated. The results show that few algorithms are suitable for our environment, but it is possible to integrate them in the platform.
evelopment of submerged macrophyte and epiphyton in a ow-through system : Assessment and modelling predictions in nterconnected reservoirs

Every approach to lake restoration requires the reestablishment of submerged macrophytes. However, macrophyte overgrowth in shallow lakes may lead to deterioration and a consequent necessity for restoration treatments. We assumed that a major threat to the increased trophic level in the Jankovac flow-through system arises from the sediment, where the accumulation of deciduous leaf litter and decayed macrophyte fragments could generate anoxic conditions. The integrated Water Quality Model (WQM) and the Submerged Aquatic Vegetation Model (SAVM) were combined in the Jankovac Model (JanM) and applied during the vegetated season in 2008 and 2014, with the aim to offer a possible approach to the maintenance of good water quality. The impacts of flow velocity and epiphyton growth on submerged macrophyte coverage and biomass were simulated. Biocenotic analyses suggested that epiphyton growth was more extensive in 2014 in comparison to 2008. The results of JanM indicated that increased flow velocities enhanced macrophyte growth and dissolved oxygen concentrations concurrently with the decline of epiphyton biomass. Furthermore, results suggested that epiphyton growth rate of 0.4 d−1 maintained macrophyte coverage and biomass at a satisfactory level of 70% reservoir coverage. Considering the proposed scenarios hydraulic treatment could be applied to regulate submerged macrophytes in shallow reservoirs, as an efficient and less invasive approach than sediment removal, especially in sensitive karst areas. © 2016 Elsevier Ltd. All rights reserved.
An ANP-Based Framework for Revenue Management

Revenue management (RM) is the process of understanding, anticipating and influencing consumer behavior in order to maximize revenue. The challenge is to sell the right resources to the right customer at the right time for the right price through the right channel. Network revenue management models attempt to maximize revenue when customers buy bundles of multiple resources. An Analytic Network Process (ANP)-based framework for RM problems structuring and combining specific methods is presented. RM addresses three basic categories of demand-management decisions: price, quantity, and structural decisions. Specific models are used to model and to solve basic RM decisions. Combinations of the solutions are given by sub-networks in an ANP model.