Miracle-dz/UniFAR-FTUs huggingface dataset:
Phytochemical Composition and Antioxidant Activity of Selected Watermelon Varieties Grown in Tunisia

Interest in bioactive compounds with antioxidant capacity and potential health benefits in watermelon is increasing but data on this topic remains scarce in the literature. Therefore, the variability of antioxidant component and antioxidant activity of six watermelon varieties (four commercial varieties ‘Aramis’, ‘Crimson Sweet’, ‘Dumara’, ‘Giza’, and two new selections ‘P503’ and ‘P403’ developed by the National Agricultural Research Institute of Tunisia) were determined. All varieties were grown simultaneously in the same field and subjected to identical cultural practices in order to minimise the effects of environmental conditions and maximize those related to genotype. Significant differences were found in lycopene, vitamin C and phenolic contents between watermelon varieties. ‘Giza’ showed the highest analyzed antioxidants levels. ‘P503’ had the highest lycopene and flavonoid contents. ‘Aramis’ showed the highest hydrophilic antioxidant activity (239.90 μM Trolox 100 g FW). However, the highest lipophilic antioxidant activity was detected in ‘Crimson Sweet’ (283.97 μM Trolox 100 g FW). The present study demonstrates that the amount of assayed antioxidant molecules and the hydrophilic and lipophilic antioxidant activities were influenced by genotype, which emphasizes the need to evaluate watermelon biodiversity in order to improve its nutritional value. _____________________________________________________________________________________________________________
Using Online Data for International Wage Comparisons

We use a novel dataset from a large freelance website to document international wage differences for performing tasks that can be delivered online. We show large wage disparities across freelancers from different countries working on narrowly de-ﬁned occupations. These wage differentials across countries cannot be explained by differences in observable worker characteristics. Instead, real exchange rate levels ac-count for about 70 percent of the cross-country-variation in average wages, and the elasticity of relative wages with respect to the real exchange rate is about 0.4. The magnitudes of these ﬁndings are pervasive across different country groups and types of jobs.
Values Congruence on CSR and Its Impact on Corporate Reputation

Corporate Social Responsibility (CSR) is increasingly accepted by decision makers and implemented in businesses, because it is beneficial to an organization’s profit and influence and also the perceptions and commitment of its stakeholders. Therefore, doing CSR is largely related to building a good reputation. Although the individual values of managers is more and more regarded as a driver CSR, and as the congruence between corporate values and employee values is known to impact CSR activities, the link between individual values and Corporate Reputation (CR) is an understudied topic. The purpose of this article is to propose how to investigate this issue in a higher education context. Exploring, a) to what extent university top managers and middle managers values concur in respect of CSR, and b) how this might impact on the CR which is perceived by other stakeholders are its chief focus. The proposed study is to be based on two case study universities, one in the UK and one in China. Both semi-structured interviews and surveys are proposed, representing a mixed methods approach to a complex problem. This study will benefit university top management in its CSR decision making. Keywords: personal values, organisational values, values congruence, CSR, corporate reputation
CMAR_A_208323 8145..8155

1Department of Epidemiology and Biostatistics, School of Health Sciences, Wuhan University, Wuhan 430071, Hubei, People’s Republic of China; 2Microbiology and Biotechnology Research Lab. , Fatima Jinnah Women University, The Mall Rawalpindi 46000, Pakistan; 3Human Resource Department, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430071, People’s Republic of China; 4Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430071, Hubei, People’s Republic of China; 5School of Mathematics and Statistics, Central China Normal University, Wuhan 430072, Hubei, People’s Republic of China; 6Global Health Institute, Wuhan University, Wuhan 430071, Hubei, People’s Republic of China Purpose: Breast cancer is one of the rapidly increasing cancers among women and a
THE IMPACT OF TRADE LIBERALIZATION ON TRADE SHARE AND PER CAPITA GDP: EVIDENCE FROM SUB SAHARAN AFRICA

Though there has been an increasing consensus on the benefits of trade liberalization, skepticism as to the effectiveness of the IMF and World Bank sponsored trade liberalization programs still exists. This study tries to analyze the impact of the abovementioned trade liberalization program in sub Saharan A f r i c a n context u s i n g a dynamic p a ne l f r a m e w o r k . The findings suggest that countries that adopted the trade liberalization program have shown a substantial boost in trade share. Moreover, higher trade share was shown to have caused a significant increase in GDP per capita. However, a direct and positive effect of trade liberalization on per capita GDP was not found. Nevertheless, as the major argument for trade liberalization is centered around its role on the level or growth in per capita income through enhancing trade, the overall findings suggests a case for trade liberalization in Sub-Saharan Africa.
Influences on Residence Hall Students' Perceptions of Student Leadership

Leadership has been a focus of higher education since the inception of colleges and universities (Astin & Astin, 2000). Although leadership has been defined in different ways, it resonates as a principle within many higher education institutions. Although the commitment to leadership development has remained strong, different perspectives on leadership have gained prominence and a plethora of models perceptions, theories, and definitions concerning leadership and leadership development have emerged (Bass, 1 990)
Design of an Optical Blood Pressure Sensor for Noninvasive monitoring of blood pressure

In modern society, patients often have access to a wealth of electronic data concerning their social networks and surroundings, but have little personalized insight into their own health. Our plan is to distribute a small handheld device with an array of biometric sensors to collect data about a user’s body. With the patient’s current and past data, we can give the patients a pre-diagnosis (outlining symptoms and possible sickness) using machine learning techniques to create a general summary of the patient’s symptoms and potential treatment while collaborating with physicians to reach a final consensus of the patient’s health status before the patient is aware of his/her illness. We want to empower users with basic knowledge of their vital signs and help them be more proactive in disease prevention while relying less on frequent primary care physician office visits.
Distinct genomic signals of lifespan and life history evolution in response to postponed reproduction and larval diet in Drosophila

Reproduction and diet are two major factors controlling the physiology of aging and life history, but how they interact to affect the evolution of longevity is unknown. Moreover, although studies of large‐effect mutants suggest an important role of nutrient sensing pathways in regulating aging, the genetic basis of evolutionary changes in lifespan remains poorly understood. To address these questions, we analyzed the genomes of experimentally evolved Drosophila melanogaster populations subjected to a factorial combination of two selection regimes: reproductive age (early versus postponed), and diet during the larval stage (“low,” “control,” “high”), resulting in six treatment combinations with four replicate populations each. Selection on reproductive age consistently affected lifespan, with flies from the postponed reproduction regime having evolved a longer lifespan. In contrast, larval diet affected lifespan only in early‐reproducing populations: flies adapted to the “low” diet lived longer than those adapted to control diet. Here, we find genomic evidence for strong independent evolutionary responses to either selection regime, as well as loci that diverged in response to both regimes, thus representing genomic interactions between the two. Overall, we find that the genomic basis of longevity is largely independent of dietary adaptation. Differentiated loci were not enriched for “canonical” longevity genes, suggesting that naturally occurring genic targets of selection for longevity differ qualitatively from variants found in mutant screens. Comparing our candidate loci to those from other “evolve and resequence” studies of longevity demonstrated significant overlap among independent experiments. This suggests that the evolution of longevity, despite its presumed complex and polygenic nature, might be to some extent convergent and predictable.
Predicting review helpfulness : the case of class imbalance

Tous les documents placés en accès ouvert sur le site le site MatheO sont protégés par le droit d'auteur. Conformément aux principes énoncés par la "Budapest Open Access Initiative"(BOAI, 2002), l'utilisateur du site peut lire, télécharger, copier, transmettre, imprimer, chercher ou faire un lien vers le texte intégral de ces documents, les disséquer pour les indexer, s'en servir de données pour un logiciel, ou s'en servir à toute autre fin légale (ou prévue par la réglementation relative au droit d'auteur). Toute utilisation du document à des fins commerciales est strictement interdite.
The election day of Pope Francis: between sentiment and emotions online

: The mediatization of emotions emerges as an affordance of social media, the study of which involves paying attention to digital practices and the formation of the sense of public affection, of connected audiences expressing their participation through expressions of sentiment. This happens both for the great events and for the daily demonstrations of support or of its negation. Here we choose to analyze the tweets in which the users express their opinions, sentiments, emotions on Pope Francis’s Election. To reconstruct the hashtag semantics, we use multimodal content analysis. Keywords—hashtags, multimodal content analysis, emotions, sentiments, social media.
the Action of the

Internet traffic volume continues to increase at a high rate every year. To handle unexpected traffic surges, link failures and growth in traffic volume, network link capacities are typically over-provisioned. To reduce the extent of overprovisioning, we proposed an application and network coordinated multi-layer architecture called ACTION. Application QoE (Quality of Experience) are translated into network QoS requirements, and the multi-layer architecture is leveraged to meet these QoS requirements. To determine the quality experienced by application flows, Hadoop logs are communicated to the network controller, and edge devices are programmed to detect elephant flows automatically. Virtual networks that offer applications flows their required QoS are realized by configuring physical network switches to achieve the required QoT (Quality of Transport). ACTION is a multi-QoE, application-centric, energy-efficient network architecture that leverages flexible elastic optical network technologies. This project is supported by both NSF, USA, and NICT, Japan, under the JUNO (Joint Japan-US Network Opportunity) program. This paper provides a brief overview of the project.
Open flap debridement using microsurgical loupes and modified widman flap approach - A case series

Periodontitis is a chronic inflammatory disease of multifactorial origin resulting in pocket formation, loss of attachment, gingival recession, bone loss, mobility and eventually loss of tooth. The use of specifically designed microsurgical instruments aids in achieving clinical outcomes with increased accuracy, reduced fatigue, improved motor skills, minimal soft tissue trauma and hence reduced discomfort post operatively. This case series envisages the comparison of clinical outcomes following Open Flap Debridement (OFD) with and without magnifying loupes using Modified Widman flap approach. Case series: Five patients diagnosed with chronic generalised periodontitis having 10 sites with similar periodontal defects in contralateral quadrants (3 maxillary and 2 mandibular) were selected for this case series. Quadrants were randomly assigned to the microsurgical or conventional group. The results of this case series showed that the use of microsurgical approach had superior results in terms of early wound healing and patient comfort compared to conventional surgical approach. Conclusion: Thus, utilisation of microsurgical approach results in enhanced outcomes.
Model Selection in Sparse Multi-Dimensional Contingency Tables

We compare the Lasso method of variable selection in sparse multi-dimensional contingency tables with a new Smooth Lasso method which casts regularization in a standard regression analysis mould, and also with the classical backwards elimination algorithm, which is used in standard software packages. First, we make a general methodological point in relation to model selection with interactions. Next we undertake a simulation study which explores the ability of the three algorithms to identify the correct model. Finally, we analyse a set of comorbidities arising in a study of obesity. The findings do not favour the standard Lasso regardless of the optimization algorithm employed.
Enhancing the Therapeutic Efficacy of Daunorubicin and Mitoxantrone with Bavachinin, Candidone, and Tephrosin

The capability of flavonoids in sensitizing cancer cells was demonstrated in numerous works to chemotherapy and converse multidrug resistance by modulating efflux pumps and apoptosis mechanisms. Three flavonoids, namely, bavachinin, tephrosin, and candidone, have been recently introduced to cancer treatment research presenting various activities, such as antibacterial, immunomodulatory, cell death, and anticancer. Less information exists regarding the therapeutic significance of these flavonoids in cancer treatment, especially in overcoming multidrug resistance (MDR). Here, we tempted to investigate the potency of these agents in reversing MDR by analyzing their effects as chemosensitizers on cell cytotoxicity, P-gp and ABCG2 protein expression levels, and their function on two multidrug-resistant cell lines, P-gp-overexpressing human gastric adenocarcinoma cell line (EPG85.257RDB) and ABCG2-overexpressing human epithelial breast cancer cell line (MCF7/MX). The inhibitory concentration of 10% (IC10) of bavachinin, tephrosin, and candidone in EPG85.257RDB cells was 1588.7 ± 202.2, 264.8 ± 86.15, and 1338.6 ± 114.11 nM, respectively. Moreover, these values in MCF7/MX cell were 2406.4 ± 257.63, 38.8 ± 4.28, and 27.9 ± 5.59 nM, respectively. Expression levels of ABCG2 and P-gp were not significantly downregulated by these flavonoids. Maximum levels of daunorubicin and mitoxantrone accumulations and minimum rates of drug efflux in both cell lines were detected 48 hrs posttreatment with tephrosin and bavachinin, respectively. Chemosensitization to mitoxantrone and daunorubicin treatments was, respectively, achieved in MCF7/MX and EPG85.257RDB cells in response to IC10 of bavachinin and tephrosin, independently. These effects did not follow time-dependent manner, and each flavonoid had its cell-dependent patterns. Overall, bavachinin, tephrosin, and candidone showed potency to sensitize MDR cells to daunorubicin and mitoxantrone and could be considered as attractive MDR modulators for cancer treatment. However, their action was time and cell specific.
Progress with the ENEA-ORNL high-speed four barrels pellet injector

Introduction. Pellet injection is a well proven technology representing to date the most efficient method for core fuelling of fusion plasmas. It is believed that, due to favourable drift effects across the plasma column, injection from the inboard torus side via curved guide tubes can provide high fuelling efficiency, in spite of restrictions imposed to the projectiles speed by such a scheme. Extensive tests carried out at ORNL suggest that the speed will need to be limited to a few hundreds of m/s, for reliable delivery of intact pellets . Simulation codes, however, indicate that the fuelling efficiency increases with the injection speed , while recent tests at Asdex Upgrade demonstrated that D2 ice pellets can survive at velocities of ~ 1 km/s inside a guiding system, provided this is very carefully designed . Moreover, when injection from the inboard torus side is impractical due to tight space (as will be for instance the case of Ignitor and JT60-SA), pellets have to be necessarily injected from the outboard side at speeds ≥ 3 km/s, in order to achieve sufficient fuel penetration in spite of the unfavourable drift. ENEA and ORNL are therefore collaborating on the development of a high-speed four-barrel “pipe gun” injector for the Ignitor experiment (fig. 1), designed to launch D2 ice pellets (1.9, 2.6, 3.2 and 4.4 mm in size) at speeds up to 4 km/s, using two-stage light gas guns.
Energy-efficient Server Design

Energy-efficiency has become a main design goal for today’s servers and data centers because of its direct impact on the total cost of operation. Current estimations show that power and power-related costs account for approximately the same amount as the hardware infrastructure cost, and is increasing at a higher rate where estimates show that it will reach a $7.4 billion per year by 2011. In an era where we build chips with a huge number of transistors that can’t be operated at the same time, because we would exceed the chip’s power envelope, it is no longer sufficient to design processors and servers to achieve only high performance. The main metric has shifted from performance to performance per unit of power, which defines the energyefficiency of the system. One of the main approaches suggested to achieve higher energy efficiency is to use many cores that are simpler, cheaper, and have lower-power characteristics than current servers, such as embedded processors. This can be done without sacrificing significant performance because of the nature of the workloads running on these processors, that are I/O not CPU intensive with a lot of independent parallel request that benefit directly from the increase in the number of cores. This paper focuses on this method to overcome the energyinefficiencies of current servers, describing three techniques that successfully use embedded processor to increase the amount of performance achieved per watt.
Effects of Ankle Joint Motion on Pelvis-Hip Biomechanics and Muscle Activity Patterns of Healthy Individuals in Knee Immobilization Gait

The purpose of the study was to investigate the pelvis-hip biomechanics and trunk and lower limb muscle activity patterns between healthy people walking in two gaits and evaluate the effects of ankle joint motion on these two gaits. The two gaits included walking with combined knee and ankle immobilization and with individual knee immobilization. Ten healthy participants were recruited and asked to walk along a 10 m walk away at their comfortable speeds in the two gaits. Kinematic data, ground reaction force, and electromyography waveforms of trunk and lower limb muscles on the right side were collected synchronously. Compared to individual knee immobilization gait, people walking in the combined knee and ankle immobilization gait increased the range and average angle of the anterior pelvic tilt during the first double support and the single support phase, respectively. The combined knee and ankle immobilization gait also increased the range of hip abduction during the second double support phase. These kinematic alternations caused changes in trunk and lower limb muscle activity patterns. The ankle immobilization increased the range of gluteus maximus activation in the first double support phase, the range of rectus abdominis activation, the average amplitude of rectus femoris activation in the single support phase, and the range of rectus femoris activation in swing phase and decreased the range of and tibialis anterior activation in the first double support phase. The ankle immobilization also increased the average values of proximodistal component in AKI gait during the single support phase. This study revealed significant differences in pelvis-hip biomechanics and trunk and lower limb muscle activity patterns between the two gaits.
Does the Development Level Influence the Relationship between Economic Growth and Urban Concentration? (Evidences from Mediterranean Countries and EU)

Urbanisation and economic growth go hand in hand in the economic development process. There is an extensive literature on urban development process and its relationship with the economic growth. Urban concentration shows whether resources are overconcentrated in one or a few large cities, or spread evenly across different cities. There is a significant relationship between economic growth and the degree of urban concentration, as measured by different criteria, including urban primacy or the share of the largest city in an urban system. Based on the Williamson’s Hypothesis, the optimum degree of urban concentration is dynamic and increases in the early phases of economic development. It starts declining at later stages. The main purpose of the study is to determine whether there is a significant relationship between economic growth and the degree of urban concentration; which is measured by primacy in this paper. Also, it is tested that if there is such a relationship, how does it affect the development, which is specified by Human Development Index (HDI)? This study takes into account the Mediterranean countries and the European Union (EU), both of which include developed and developing economies. The model used in this case study for 2005 is the Solow growth model (1956) with urban primacy and its interaction through development as independent variables. The results show that for 2005, in both the Mediterranean countries and the EU, primacy has had significantly negative effects on growth, whereas the effects of the interaction of primacy and HDI have been significant and positive. This shows that the level of development affects the relationship between economic growth and primacy. Infant Mortality in India 1972-2007: An Exploratory Analysis
Cataract and cell-phone radiation

A concern that is often expressed about microwave radiation is the induction of cataracts. The formation of lens opacities in the eyes of laboratory animals following acute microwave exposure is well established. It is generally accepted that acute exposure to higher levels of CW radiation causes various degrees of lens opacification in laboratory animals at many microwave frequencies. However, the exact conditions under which these changes may occur in human beings are a subject of debate. Nevertheless, linear extrapolations of computed results indicate that the incident density required for the human eye to reach the cataractogenic threshold may only be slightly lower than that needed for rabbits.