Miracle-dz/UniFAR-FTUs huggingface dataset:
Factors in Re-Finding the Personal Photographs: Review and Possible Research Directions

Factors effecting re-find personal photographs are often difficult to define, given its inexpressible numbers. Literature review highlights the role of human behaviors in personal photographs lifecycle such as capturing, keeping, managing and re-finding personal photographs exaggeratedly without any progress to handle all factors and so forth. Moreover, personal photographs management systems are becoming widespread, which can help people to rapidly re-find their photographs that have been seen before. Yet some research gaps remain in these systems. This study aims to clarify most possible factors, which could influence re-finding personal photographs as with strengths and weaknesses points in existing photographs management systems. It also provides propose directions for future research in this domain. A review of existing studies highlights some gaps in the literature on the role of personal photographs lifecycle, which is followed by questions for future research. Given the richness of personal photographs re-finding domain, the authors believe that the proposed questions offer avenues for scholars to explore and develop greater understanding of the role of personal photographs lifecycle in difficulty of re-finding personal photographs. The authors acknowledge that there are certain limitations to this study, namely, focusing on the review of personal photographs and not on other forms of personal information. The review presents the role of personal photographs lifecycle and its use in the context of re-finding personal photographs. Finally, this study proposes only future research directions that are far from being exhaustive, rather than presenting experimental study results. Reviewing the current literature uncovers a number of gaps regarding the difficulty of re-finding personal photographs.
IMPACT OF MANAGERIAL POWER AND THE PERSONAL CHARACTERISTICS OF CEO ON THE PERFORMANCE: CASE OF THE TUNISIAN COMPANIES

The main objective of this article consists in determining the impact of the management power and the manager’s personal characteristics on the performance of the highly-rated enterprises. This paper examines two approaches. The first one specifies the leader’s power by referring to the management characteristics as a group of personal sociological and professional aspects. The second one is concerned with the effect of these characteristics on the companies’ performance. In order to test the validity of the theoretical hypotheses, the empirical study is based on a sample of 32 Tunisian highlyrated enterprises during the period 2000-2005. The results have shown that the leader’s power, made up of indicating variables, plays an important role on the stock exchange and accounting performance. This fact leads us to conclude that all management characteristics contribute to the reinforcement of this power and to its effects on the enterprises’ performance.
Deformed Special Relativity with an energy barrier of a minimum speed

This research aims to introduce a new principle in the flat space-time geometry through the elimination of the classical idea of rest and by including a universal minimum limit of speed in the quantum world. This limit, unattainable by the particles, represents a preferred inertial reference frame associated with a universal background field that breaks Lorentz symmetry. There emerges a new relativistic dynamics where a minimum speed forms an inferior energy barrier. One of the interesting consequences of the existence of such a minimum speed is that it prevents the absolute zero temperature for an ultracold gas according to the third law of thermodynamics. So we will be able to provide a fundamental dynamical explanation for the third law through a connection between such a phenomenological law and the new relativistic dynamics with a minimum speed.
Polyethylene/Polyhydroxyalkanoates‐based Biocomposites and Bionanocomposites

The development of advanced polymer composite materials having superior mechanical properties has opened up new horizons in the field of science and engineering. Polyethylene (PE) is considered one of the most widely used thermoplastics in the world due to its excellent properties which have excellent chemical inertness, low coefficient of friction, toughness, near-zero moisture absorption, ease of processing and electrical properties. Polyhydroxyalkanoates (PHAs) are garnering increasing attention in the biodegradable polymer market because of their promising properties such as high biodegradability in different environments. This chapter covers polyethylene/polyhydroxyalkanoates-based biocomposites and bionanocomposites. It summarizes many of the recent research accomplishments in the area of PE/PHAs-based biocomposites and bionanocomposites such as state-of-the-art regarding different methods of their preparation. Also discussed are different characterization techniques and use of PE/PHAs-based biocomposites and bionanocomposites in biomedical, packaging, structural, military, coating, fire retardant, aerospace and optical applications, along with recycling and lifetime studies.
BUILDING WINNING STRATEGY FOR COMPETITIVE PERFORMANCE THROUGH CORPORATE SOCIAL RESPONSIBILITY: AN X-RAY OF MTN NIGERIA

This research was undertaken by the authors with the primary objective of appraising the possibility of organization leveraging on Corporate Social Responsibilities (CSR) as strategic tool for competitive performance with particular reference to MTN Limited (a giant Telecom Firm in Nigeria). Primary data were collected through questionnaire using quota sampling technique to divide Lagos (sampling population) State to 5 divisions. 50 subscribers were randomly selected from each division to have a total of 250 respondents. 100 members of staff of MTN were equally randomly selected as respondents. Secondary data were obtained from the National Communication Commission (NCC) and MTN Annual Report and Accounts. Multiple Regression, ANOVA and graphical charts were used to analyze the collated data and test the hypotheses. The findings showed that the coefficients of all the results (R2 0.955, F-Test 1531.979 for hypothesis 1); (R20.817, F-Test 324.973 for hypothesis 2); (R2 0.872, F-Test 497.814 for hypothesis 3); and (R20.892, F-Test 603.547 for hypothesis 4) were significant at 0.05 level, meaning that, good ethical CSR practices, environmental CSR, appropriate delivery of societal focused CSR and economic empowerment of the host community have significant effects on organizational performance of the GSM firms. Based on the findings, the authors recommended that, GSM service providers should ensure that they improve on their quality of services, identify the developmental needs of the host communities, abide with the ethical requirement on CSRs, establish peaceful and cordial relationship with the host communities and ensure transparency and prudent use of funds allocated for CSRs since the study has discovered that, there exists a very strong relationship between CSR and firms' competitive performance.
Comparison of Heart Rate Variability during Playing Video Game and Cycle Exercise

The purpose of the present study was to compare heart rate variabilities during playing a video game and physical exercise at the same heart rate (HR) level. Six healthy male sub­ jects played the video game. The mean HR during playing the computer game was defined as the target HR. Then, subjects performed a bicycle exercise at the target HR. Electrocar­ diogram (ECG) was recored during experiment. R-R intervals were detected and resampled by 8Hz from ECG recordings. Power spectral densities were estimated by the direct method for last five minutes at rest, load and recovery. The low frequency (LF) powers (ms 2 ) were integrated from 0.04 to 0.15Hz and the high frequency (HF) powers were inte­ grated from 0.15 to 0.5Hz. Natural logarithmic transformations of LF and HF powers were used to stabilize the skewness of raw data. The results of ANOVA showed a significant ef­ fect of periods (p < 0.05) and no significant effects of workloads and the interaction be­ tween the two factors. Significant differences in the ratio of LF and HF powers during playing the video game between at rest and load was observed. Significant differences in HF during mild levels of cycle exercise between at rest and load, and between at load and recovery was also observed. While during physical exercise, HR was thought to increase primarily due to the withdrawal of vagal nervous system activity, the contribution of sympa­ thetic nervous system activity might be larger in the video game than in the cycle exercise.
TRASTUZUMAB IN METASTATIC BREAST CANCER: SYSTEMATIC REVIEW OF COST-EFFECTIVENESS ANALYSES

Objective: To conduct a systematic review of cost-effectiveness analyses of trastuzumab in patients with metastatic breast cancer overexpressing human epidermal growth factor receptor 2. Methods: A systematic review for the years 1998 to 2013 was conducted. A survey of the scientific literature was performed using six electronic databases, two search tools on the internet and a manual search of references using search strategies for each database. The selected studies were assessed for quality according to specific methodology. Data analysis was performed by converting the costs and by observations made from the incremental cost-effectiveness ratios of trastuzumab. Results: From a detailed analysis of 521 retrieved articles, 13 articles were selected for this review. The treatment regimens adopted for cost-effectiveness were varied. Eight studies compared treatment with trastuzumab as first line for metastatic disease, and five studies compared treatment with trastuzumab as the second line. All the studies were using trastuzumab as second-line treatment was not considered a cost-effective intervention. The analyses used different thresholds to determine whether treatment with trastuzumab was cost-effective as well as to determine differences in modeling costs, outcomes and treatment patterns. Conclusion: The use of trastuzumab, alone or combined, was cost-effective as first-line treatment. Differences were found in the quality of the included studies. Conducting new cost-effectiveness analyses of trastuzumab in metastatic breast cancer is required, in alliance with political, social and administrative factors, to help decision makers concerning its incorporation.
U. S. DEPARTMENT OF THE INTERIOR U. S. GEOLOGICAL SURVEY HIGH RESOLUTION MAPPING OF STRATIGRAPHY USING SEISMIC TOMOGRAPHY: A FEASIBILITY TEST AT THE M-AREA BASIN, SAVANNAH RIVER SITE, SOUTH CAROLINA

At the M-Area basin, Savannah River Site, the saturated and unsaturated zones have been contaminated with dense non-aqueous phase liquids (DNAPLs). The remediation will cost less and require less time if the stratigraphy is known in detail because it strongly affects the migration and emplacement of the contaminants. For this reason, seismic tomography was tested to determine if it could be used to map the stratigraphy near monitoring wells. The test involved three experiments. For the first, the unsaturated zone was probed using sources on the surface and receivers in a fluid-filled monitoring well. The size of the smallest heterogeneity that could be resolved was approximately 10 ft, which is much greater than the thickness of the major sedimentary layers, and hence seismic tomography with this configuration will not be a useful tool for mapping the sediments. For the second experiment, the unsaturated zone was again probed but using sources and receivers in two fluid-filled monitoring wells. The resolution was approximately 3 ft, and changes in the velocities were well correlated with the fine-scale stratigraphy. For this configuration, seismic tomography can be used for detailed mapping if the wells are close together (i.e., within approximately 20 ft). For the third experiment, the saturated zone was probed using sources and receivers in two fluid-filled monitoring wells. The resolution was about 3 ft, and velocities were also well correlated with the stratigraphy. In the saturated zone, seismic tomography can be a valuable tool for high resolution mapping of stratigraphy even between widely spaced wells (i.e., up to 50 ft apart). Of the three experiments, the well-to-well tomography in the saturated zone is the best suited to high resolution mapping of stratigraphy. For DNAPL remediation, these maps will be invaluable to hydrologists who are designing alcohol or surfactant injections because the maps show the locations of discontinuous sand and clay layers between wells. These maps will also be needed by geophysicists who are monitoring DNAPL remediation using borehole radar data: once the geophysicists know the geology, they can separate the effects on the waves due to the geology from those due to changes in the pore fluids, and in this way the monitoring should be improved.
Valuing Monitoring Networks for New Pathogens: The Case of Soybean Rust

We estimate producers’ value of information provided by alternative configurations of a monitoring network for an invasive wind-borne crop disease, soybean rust (Phakopsora pachyrhizi). Soybean producers use monitoring information to inform themselves about their risk of being infected and to make fungicide application decisions. The value of information is the expected gain in producers’ profit associated with the use of the monitoring network, and we estimate this with a dynamic model of producer decisionmaking. We find that the value of the sentinel plot network increases with the number of sentinel plots, reaching a maximum at 400 sentinel plots. In addition, the optimal spatial arrangement of sentinel plots indicated by our model is substantially different from actual placements. Current sentinel plots are disproportionately placed in the Southern US where the risk of infection is high, but the amount of soybean is relatively small. Our estimates suggest more plots should be placed in the Corn Belt where the risk of an infection is lower, but where much more soybean is produced.
NSCT Domain Additive Watermark Detection Using RAO Hypothesis Test and Cauchy Distribution

We presented a RAO hypothesis detector by modeling Cauchy distribution for the Nonsubsampled Contourlet Transform (NSCT) subband coefficients in the field of additive spread spectrum image watermarking. Firstly, the NSCT subband coefficients were modeled following the Cauchy distributions, and the Fit of Goodness shows that Cauchy distribution fits the NSCT subband coefficients more accurately than the Generalized Gaussian Distribution (GGD) commonly used. Secondly, a blind RAO test watermark detector was derived in the NSCT domain, which does not need the knowledge of embedding strength at the receiving end. Finally, compared to the other three state-of-art detectors, the robustness of the proposed watermarking scheme was evaluated when the watermarked images were attacked by JPEG compression, random noise, low pass filtering, and median filtering. Experimental results show that, compared with the other three detectors, the proposed RAO detector guarantees the lower probability of miss under the given probability of false alarm.
Attenuation of Gastrointestinal Tract Propulsion in Rats by Zinc Acetate: Investigation into Serotonergic and Dopaminergic Mechanisms

This study evaluated the influence of orally administered zinc acetate on gastrointestinal tract propulsion of rats. It also evaluated the effects of the salt on faecal output and gastrointestinal transit time in the rats. The effects of zinc acetate on feeding as well as water intake were determined. The dose of zinc acetate which produced the maximal effect was used to investigate the receptors involved in the alteration of gastrointestinal motility by the salts. All the three doses of zinc acetate (50 mg/kg, 80 mg/kg and 110 mg/kg) produced a significant reduction in the number of total faecal pellets produced in eight hours of study (2.67 ± 0.67, 10.75 ± 0.60, 5 ± 0.52) respectively when compared with the control group (15.67 ± 0.52). Also, the three doses of zinc acetate produced a dose-dependent significant reduction in the faecal mass (1.23 ± 0.08g, 0.96 ± 0.07g, 0.59 ± 0.07g) respectively when compared with control group (3.39 ± 0.25g). The total transit time in rats treated with 50 mg/kg of zinc acetate (746.2 ± 5.95 minutes) increased significantly compared to the control group (251.2 ± 5.48 minutes). The three doses of zinc acetate produced a dose-dependent reduction (p < 0.05) in food intake (9.67 ± 0.61, 9.17 ± 0.62 and 5.00 ± 0.39) respectively compared to the control group (18.33 ± 0.67). Pre-treatment with metoclopramide (5HT3 & D2 blocker/5HT4 serotonergic agonist) significantly increased faecal pellet output in zinc acetate treated rats (4.80 ± 0.20) when compared with rats treated with zinc acetate alone (2.67 ± 0.67). The study concluded that zinc acetate reduced gastrointestinal tract propulsion in rats evidenced as increased intestinal transit time of rats and reduced faecal pellet output via stimulation of 5HT3 and 5HT4 serotonergic and dopaminergic receptors.
Structure of the Hall current system in the vicinity of the magnetic reconnection site

[1] The spacecraft Geotail has observed the Hall current system in the vicinity of the magnetic reconnection site of the near-Earth magnetotail for substorm onsets. In the outermost region near the plasma sheet/tail lobe boundary, field-aligned currents flow out of the magnetic reconnection site. In the adjacent region, just inside the outflowing current layer, field-aligned currents flow into the magnetic reconnection site. Hence, the Hall current circuit forms a thin double-sheet structure near the separatrix layer.
Economic Growth and Child Labor in Low Income Economies

GLM|LIC Working Paper No. 11 | April 2016 Economic Growth and Child Labor in Low Income Economies 264 million children work in the world today. 64 percent are in activities that satisfy legal definitions of child labor. These working children are both a cause and a consequence of a lack of economic growth. Widespread child employment dampers future economic growth through its negative impact on child development and depresses current growth by reducing unskilled wages and discouraging the adoption of skill-intensive technologies. Child employment also appears to result from a lack of economic growth. Rising incomes are associated with improvements in the family’s ability to triage economic shocks without child labor, shifting production outside of the home, and a greater demand for education and leisure. All of these factors lead to declines in the economic activity of children when income levels are on the rise. Child labor is both an issue of rights and of economic development. JEL Classification: J22, J88, O15
GLOBAL ENVIRONMENTAL CHARACTERISTICS OF SECOND-GENERATION HALON REPLACEMENTS

INTRODUCTION The search for halon replacements has not yet resulted in satisfactory chemicals with the same measure of success as has the search for CFC replacements to be used as refrigerants, solvents, and foam blowing agents. The species suggested so far may be acceptable in terms of toxicity and environmental impact, but they are inferior as fire extinguishants. These first-generation agents may be used now, but at the cost of substantial system and equipment modifications. There is incentive therefore to look beyond these agents to second-generation candidates which possess the desired extinguishant capabilities. Several categories of compounds have been suggested (1). In this paper we examine the global environmental characteristics of these possibilities. The environmental impacts of halon$ are basically two in kind: a) global warming (a tropospheric problem), and b) ozone depletion (restricted to the stratosphere). Both of these impacts are a consequence of the long atmospheric lifetimes that characterize halons. Before considering factors that limit atmospheric lifetimes of molecules, we very briefly review several relevant features of the atmosphere. First, the common perception is that the troposphere is a reasonably thick blanket that shrouds the Earth. However, the troposphere is approximately 12 km thick and the diameter of the Earth is close to 13,000 km, a ratio of about 0.001. To adjust to a familiar scale, if Earth were reduced to the size of an apple with a diameter of 3.5 in. , the troposphere would be a layer 0.003 in. thick, about the thickness of the skin of the apple. It is in this layer that all our weather exists and in which we conduct our activities. The stratospheric ozone layer is a band of relatively high ozone concentration lying in the elevation range of 25-50 km. The peak ozone concentrations in this band are typically in the few hundreds of parts per million of atmosphere. Ozone concentrations are often reported in Dobson units, which is the integrated amount of ozone in a column of air beginning at sea level and extending to the top of the stratosphere. The tropical average of ozone concentration is 260 Dobson units, or 260 milliatmosphere centimeters. (A tropical average was chosen for this illustration because it varies little over the course of a year.) This value converts to 2.6 atmosphere millimeters, which may be interpreted as the thickness of the total ozone layer when translated to sea level, 2.6 mm. Second, molecular oxygen and ozone are the only two constituents of Earth's atmosphere that absorb incident solar radiacion at wavelengths longer than 200 nm. Oxygen absorbs
The role of semantics in searching for information on the Web

As the amount of data in the World Wide Web grows, the Internet becomes the biggest and often the primary information resource for many individuals and organizations. To make good use of the data, it is essential to provide effective and intelligent search capabilities. The users more and more often require direct and unambiguous answers, which are often not explicitly present in any document. The Web users also are not willing to learn complex query languages and need interfaces that will be easy to use and as close as possible to natural language. The aim of this paper is to illustrate the advantages that semantics brings to the users of contemporary Web search engines. The concepts of semantic Web and semantic search engines have been described along with some issues related to their development and usage, such as linked data, semantic query interfaces and the ways of publishing semantic data. The authors also explore the semantic features of contemporary search engines and indicate their future directions of development.
Antipyretic and antinociceptive properties of Harrisonia abyssinica Oliv and Landolphia buchananii ( Hallier f . ) Stapf in animal models View project

The Passion fruit is a significant income earner for Kenya, ranking third after avocado and mango in terms of foreign exchange earnings. Increased research activities targeting variety improvement and development of new varieties have led to development of new passion fruit varieties by KALRO. These varieties are KPF-4, KPF-11 and KPF-12 which are hybrids of natural crosses of the coastal yellow varieties and purple variety. Despite these gains in breeding, there is little information on molecular variability of the hybrids as well as the parents. The present study aimed at evaluating the genetic variation of the hybrid and parent varieties using SSR markers. DNA was extracted using a modified CTAB protocol followed by PCR and analysis done using DARWIN 6 and GenAlex 6.502 software. The resulting dissimilarity matrix showed existing genetic variability among accessions within and among the varieties studied. Further, the results of principal component analysis and phylogenetic tree showed genetic homogeneity within the assigned populations. The findings of this study will supplement the existing body of knowledge in passion fruit breeding.