Miracle-dz/UniFAR-FTUs huggingface dataset:
Experiments in Text Classification: Analyzing the Sentiment of Electronic Product Reviews in Greek

ABSTRACT Sentiment analysis, which deals with people’s sentiments as they appear in the growing amount of online social data, has been on the rise in the past few years. In its simplest form, sentiment analysis deals with the polarity of a given text, i.e., whether the opinion expressed in it is positive or negative. Sentiment analysis, or opinion mining applications on websites and the social media range from product reviews and brand reception to political issues and the stock market. The vast majority of the research in sentiment analysis has mostly dealt with English data, where there’s an abundance of readily available and annotated for sentiment corpora. With a few notable exceptions, the research in other minor languages such as Greek is lacking. This paper deals with sentiment analysis of electronic product reviews written in Greek. To this end, a small dataset of 480 positive and negative reviews is compiled and used, taken from the popular Greek e-commerce website, www.skroutz. gr. Different computational models for training and testing the dataset are evaluated, ranging from simple Naive Bayes with n-gram features to state-of-the-art BERT. The results look very promising for such a small corpus.
Systematic Review of Exposure to Bisphenol A Alternatives and Its Effects on Reproduction and Thyroid Endocrine System in Zebrafish

Bisphenol A (BPA), which is widely used for manufacturing polycarbonate plastics and epoxy resins, has been banned from use in plastic baby bottles because of concerns regarding endocrine disruption. Substances with similar chemical structures have been used as BPA alternatives; however, limited information is available on their toxic effects. In the present study, we reviewed the endocrine disrupting potential in the gonad and thyroid endocrine system in zebrafish after exposure to BPA and its alternatives (i.e., bisphenol AF, bisphenol C, bisphenol F, bisphenol S, bisphenol SIP, and bisphenol Z). Most BPA alternatives disturbed the endocrine system by altering the levels of genes and hormones involved in reproduction, development, and growth in zebrafish. Changes in gene expression related to steroidogenesis and sex hormone production were more prevalent in males than in females. Vitellogenin, an egg yolk precursor produced in females, was also detected in males, confirming that it could induce estrogenicity. Exposure to bisphenols in the parental generation induced a decrease in the hatchability associated with offspring generation. In zebrafish exposed to bisphenols, significant decreases in thyroxine concentrations and increases in thyroid-stimulating hormone concentrations were commonly observed. Alternative compounds used to replace a chemical of concern are believed to be less toxic than the original compound; however, several BPA alternatives appear to have similar or greater effects on the endocrine system in zebrafish. Since endocrine systems interact with each other, further studies are needed to assess the primary target of BPA alternatives among the endocrine axes.
Combined Lithophile‐Siderophile Isotopic Constraints on Hadean Processes Preserved in Ocean Island Basalt Sources

Detection of Hadean isotopic signatures within modern ocean island basalts (OIB) has greatly influenced understanding of Earth's earliest history and long‐term dynamics. However, a relationship between two isotopic tools for studying early Earth processes, the short‐lived 146Sm‐142Nd and 182Hf‐182W systems, has not been established in this context. The differing chemical behavior of these two isotopic systems means that they are complementary tracers of a range of proposed early Earth events, including core formation, magma ocean processes, and late accretion. There is a negative trend between 142Nd/144Nd and 182W/184W ratios among Réunion OIB that is extended by Deccan continental flood basalts. This finding is contrary to expectations if both systems were affected by silicate differentiation during the lifetime of 182Hf. The observed isotopic compositions are attributed to interaction between magma ocean remnants and Earth's core, coupled with later assimilation of recycled Hadean mafic crust. The effects of this scenario on the long‐lived 143Nd‐176Hf isotopic systematics mirror classical models invoking mixing of recycled trace‐element enriched (sedimentary) and depleted (igneous) domains in OIB mantle sources.
Nutritional Status of School-aged Children with Intestinal Parasite Infection in South Jakarta, Indonesia

BACKGROUND: The prevalence of intestinal parasitic infection still high in Indonesia and lead to nutritional disorder, especially in the school-aged children. AIM: This research conducted to find the association of intestinal parasitic infection to the nutritional status of the children. METHODS: This was a cross sectional study, conducted in January 2016 in one primary school in South Jakarta, Jakarta, Indonesia, by collecting the children’s stool from 1st to 5th grade. Direct examination of the stool was conducted in the Parasitology Department, Faculty of Medicine, Universitas Indonesia, by Lugol and eosin staining. Nutritional status categorized using BMI chart. Data were analyzed using Chi-square test, Statistical Product, and Service Solutions version 20. RESULTS: From the total 157 stool examined in the laboratory, there were 60 (38.2%) children positively infected with various kinds of intestinal parasites. Mostly the infection is caused by Blastocystis hominis, which infects 44 children (69.4%). The other infection is caused by Giardia lamblia (15.3%), Trichuris trichiura (1.4%), and hookworm (1.4%), and mixed infection of B. hominis and Escherichia coli (4.2%) and B. hominis with G. lamblia (4.2%). From the total of infected children, 17 children (28.3%) have BMI below 5th percentile, and it was considered as malnourished. Moreover, 67 uninfected children have normal nutritional status. Statistically, there is an association between intestinal parasitic infection and nutritional status in school-aged children in South Jakarta (P < 0.05). CONCLUSION: The incidence of intestinal parasitic infection in school-aged children is 38.2%. Moreover, 28.3% of the infected children were malnourished and it is suggested that children with intestinal parasite infection have low nutritional status.
Supplier Encroachment with a Dual-Purpose Retailer

The development of e-commerce has greatly facilitated the practice that suppliers encroach upon the retail realm of downstream retailers through direct channels (e.g., online stores). The literature in this area has investigated profit-maximizing firms, but the role of other organizational structures is not well understood. This paper studies supplier encroachment in which the retailer is a dual-purpose corporation that pursues his own profit as well as consumer surplus. We find that the retailer's pursuit of consumer surplus can not only intensify market competition and thus reducing the margin of direct selling, but also motivate the encroaching supplier to set a higher wholesale price compared with the case of no encroachment, which is a contrast to the case of a for-profit retailer where encroachment lowers the wholesale price. The presence of a dual-purpose retailer reduces the effectiveness of using the wholesale price as a lever by the supplier. Therefore, encroaching upon a dual-purpose retailer can hurt the supplier. We examine whether a retailer can benefit from being a dual-purpose corporation and how the retailer's dual objectives affect consumer surplus. We find that a dual-purpose retailer can earn a higher profit than a for-profit retailer as the dual-purpose structure helps deter encroachment. Counterintuitively, we find that consumer surplus in the case of a dual-purpose retailer can be lower than that with a for-profit retailer. This is because the commitment to be a dual-purpose retailer reduces supplier encroachment and thus reduces the total quantity sold to consumers.
Does Family Context Moderate the Effects of Discrimination on Emerging Adults’ Health?

Given the adverse impacts of discrimination on overall well-being, this study tests whether family context, specifically family hostility (FH) and positive family environment (PFE), moderate well-documented associations between discrimination and mental and physical health symptoms. Diverse emerging adults (n = 345) completed an online questionnaire about perceived discrimination due to a broad range of characteristics, positive and negative qualities of their families of origin, and depressive, anxiety, and physical health symptoms. Multiple linear regression analyses indicated that family factors moderated the effects of discrimination, such that discrimination was more strongly linked with health symptoms in the context of low, compared to high, family risk. Conversely, some models showed independent, non-interactive effects of discrimination and family factors on health. Gender differences emerged, though with no consistent pattern of effects. Together, these findings highlight that discrimination and negative family factors are salient social-environmental risks for emerging adults.
High-resolution 3D phenotyping of the grapevine root system using X-ray Computed Tomography

Plant roots are essential for water and nutrient uptake and contribute to the plants' response to environmental stress factors. As the hidden half of a plant, investigation of root systems is highly challenging, most of available methods are destructive and very labour-intensive. In this proof-of-concept study, a non-invasive X-ray micro computed tomography (X-ray µCT) method was applied to investigate the phenotypic variation of the complex three-dimensional (3D) architecture of grapevine roots as a function of genotype and soil. Woody cuttings of 'Calardis Musque', 'Villard Blanc' and V3125 ('Schiava Grossa' x 'Riesling') were cultivated in polypropylene columns filled with two different soil types, clay loam and sandy loam, for 6 weeks. Afterwards, the columns were scanned once using the technique of X-ray µCT. The received raw data were analysed for the reconstruction of 3D root system models (3D model), which display a non-destructive visualization of whole, intact root systems with a spatial resolution of 42 µm. The 3D models of all investigated plants (in total 18) were applied to quantify root system characteristics precisely by measuring adventitious root length, lateral root length, total root length, root system surface area, root system volume and root growth angles from the woody cutting relative to a horizontal axis. The results showed that: (i) early root formation and root growth differed between genotypes, especially between 'Calardis Musque' and 'Villard Blanc'; and (ii) the soil type does influence adventitious root formation of V3125, but had minor effects on 'Calardis Musque' and 'Villard Blanc'. In conclusion, this innovative, high-resolution method of X-ray µCT is suitable for high resolution phenotyping of root formation, architecture, and rooting characteristics of grapevine woody cuttings in a non-destructive manner, e.g. to investigate root response to drought stress and would provide new insights into phylloxera root infection.
Incorporating Biotic Information in Species Distribution Models: A Coregionalized Approach

In this work, we discuss the use of a methodological approach for modelling spatial relationships among species by means of a Bayesian spatial coregionalized model. Inference and prediction is performed using the integrated nested Laplace approximation methodology to reduce the computational burden. We illustrate the performance of the coregionalized model in species interaction scenarios using both simulated and real data. The simulation demonstrates the better predictive performance of the coregionalized model with respect to the univariate models. The case study focus on the spatial distribution of a prey species, the European anchovy (Engraulis encrasicolus), and one of its predator species, the European hake (Merluccius merluccius), in the Mediterranean sea. The results indicate that European hake and anchovy are positively associated, resulting in improved model predictions using the coregionalized model.
Political Humor, Sharing, and Remembering: Insights from Neuroimaging

Over the last two decades, news-oriented comedy programs have risen to compete with traditional hard news media as sources of information about politics. To the extent that a politically knowledgeable electorate is necessary for a thriving democracy, understanding the mechanisms underlying the extent to which political comedy facilitates or inhibits a well-informed citizenry is critical. Across two studies, we use behavioral experiments and neuroimaging to examine the causal effects of humor on the desire to share and the capacity to remember political information. We find that humor increases the likelihood to share political information with others and enhances people’s memory for information. Humor also increases brain response in regions associated with understanding other people’s mental states (i.e., mentalizing), which advances a theoretical framework that humor may facilitate considerations of others’ views (e.g., how other people will respond to shared political information).
Synopsis of Factors Affecting Hydrogen Storage in Biomass-Derived Activated Carbons

Hydrogen (H2) is largely regarded as a potential cost-efficient clean fuel primarily due to its beneficial properties, such as its high energy content and sustainability. With the rising demand for H2 in the past decades and its favorable characteristics as an energy carrier, the escalating USA consumption of pure H2 can be projected to reach 63 million tons by 2050. Despite the tremendous potential of H2 generation and its widespread application, transportation and storage of H2 have remained the major challenges of a sustainable H2 economy. Various efforts have been undertaken by storing H2 in activated carbons, metal organic frameworks (MOFs), covalent organic frameworks (COFs), etc. Recently, the literature has been stressing the need to develop biomass-based activated carbons as an effective H2 storage material, as these are inexpensive adsorbents with tunable chemical, mechanical, and morphological properties. This article reviews the current research trends and perspectives on the role of various properties of biomass-based activated carbons on its H2 uptake capacity. The critical aspects of the governing factors of H2 storage, namely, the surface morphology (specific surface area, pore volume, and pore size distribution), surface functionality (heteroatom and functional groups), physical condition of H2 storage (temperature and pressure), and thermodynamic properties (heat of adsorption and desorption), are discussed. A comprehensive survey of the literature showed that an “ideal” biomass-based activated carbon sorbent with a micropore size typically below 10 Å, micropore volume greater than 1.5 cm3/g, and high surface area of 4000 m2/g or more may help in substantial gravimetric H2 uptake of >10 wt% at cryogenic conditions (−196 °C), as smaller pores benefit by stronger physisorption due to the high heat of adsorption.
Antibacterial properties of Tualang, Acacia and Yemeni Sumur honey against selected food spoilage bacteria and foodborne pathogens

The antibacterial activity of honey is mainly credited to its acidity, osmolarity and enzymatic generation of hydrogen peroxide via glucose oxidase. Additional honey components, such as aromatic acids or phenolic compounds, also contribute to the overall antibacterial activity. The level of antibacterial activities found in honey varies with different types of honey, due to mainly the composition, percentage as well as the nature of the sugars present in the honey. This study aimed to evaluate the antibacterial activity of four types of honey, namely Tualang honey (TH1), Tualang honey (TH2), Acacia honey (AH) and Yemeni Sumur honey (YSH). Nine bacterial strains were used. Disc diffusion, well diffusion, minimum inhibitory concentration (MIC), Minimum bactericidal concentration (MBC), and time-kill methods were performed to reveal the antibacterial potential of the selected honey. The MIC values ranged between 12.5 to 50% for both TH1 and YSH while for TH2, and AH it ranged between 25 to 50%. For MBC, it ranged from 25 to 50%. The time-kill in TH1 Staphylococcus aureus (food isolate) showed total inhibition at 6 hrs in 2 X MIC, and for Staphylococcus aureus ATCC 29737 was 3.84 log CFU/g at the 6 hrs. Physicochemical quality of honey resulted as follows: the pH of the honey samples was acidic in nature ranging between 3.69 to 3.94, and the aw of the honey samples were between 0.53 to 0.69. For colour analysis, YSH was observed to has the maximum lightness and yellowness, and TH1 has the maximum redness. While, AH had a minimum lightness, redness, and yellowness.
A BY-PRODUCT OF SUMMER PROGRAMS: STUDENT MARKETERS AND CAREER-READINESS

Universities are exploring many models for delivering a fuller term in the summer. The structures and strategies of these differing models are invariably aimed at the same thing: increasing institutional awareness, student enrollment, and ultimately university revenue. Yet there is also room for involving students themselves in this endeavor so that the institutions benefit from their insight and labor, and so that the students benefit from on-the-job training that develops the skills prized by their future employers. This paper provides a brief narrative of one university’s shift from the fairly industry-wide, relatively casual approach to summer term of yesterday to something much more substantive today. This story itself is neither important here nor surprising. In fact, many other universities will recognize elements of it. Rather, it provides an introductory context for a surprising by-product: the professional development of student marketers involved in the strategy. We lay out employer definitions of career-readiness and, through structured interviews, demonstrate how supervised involvement in peer-to-peer marketing, much like an internship, enabled students to recognize how they had improved their career-readiness. We argue that the evidence here is generalizable and has implications for practice (and principle) across the academy.
Barriers to physical activity in adolescents: A systematic review

The aim of the research was to determine, based on a systematic review of published studies that dealt with barriers to physical activity in adolescents, which are the most common barriers that stop adolescents from engaging in physical activity. Within the research original scientific studies are included, the ones that had male and female adolescents as a sample of respondents, studies related to the analysis of barriers that occur in adolescents, in which assessments were made on the basis of a questionnaire related to barriers. The research included studies from January 1, 2003, to July 2020. The final analysis, based on the set criteria, included 11 studies that were processed and presented. Most studies have shown that more internal barriers than external ones occur in girls comparing to boys, while external barriers are more common causes of not engaging in physical activity in boys. The three most common barriers among boys were: lack of company, lack of time and school obligations. Among girls, the most commonly reported barrier was "I'd rather do some other activities" and reporting a lack of time. The significance of this research is that it provides information on barriers in respondents who are adolescents, ie the reasons why their physical activity is reduced or they do not engage in physical activity at all. The significance of this research is that it provides information on barriers in respondents who are adolescents, ie the reasons why their physical activity is reduced or they do not engage in physical activity at all.
Effect of a Yeast Based Feed Additive (ADDONTM - Rumen Support) to Counteract Heat Stress Related Productivity Loss in Dairy Cattle

Background: Feed additives are being used to counteract production losses in lactating cattle arising due to heat stress. In this context a study was conducted to study the impact of supplementing ADDONTM - Rumen support on in vitro rumen fermentation, production and health of lactating cattle during summer. Methods: To a total mixed ration (TMR), ADDONTM Rumen support was supplemented at three levels viz., No ADDONTM -RS, ADDONTM -RS at 0.07g/100g TMR and ADDONTM -RS at 0.15 g/100g TMR and subjected to in vitro rumen fermentation studies using the Rumen Simulation Technique. Eighteen lactating dairy cattle at early lactation, were randomly divided into three treatment groups: T1 - No ADDONTM -RS, T2 - ADDONTM -RS at 7 g/animal/day and T3 - ADDONTM -RS at 15 g/animal/day and their body condition score, body weight, milk yield, fat and SNF content were studied during peak summer. Conclusion: Supplementation of ADDONTM -RS @ 0.15g/100g of TMR helped in regulating in vitro ruminal pH, significantly (p less than 0.05) reduced total gas and carbon dioxide production at 12 hours of incubation and methane production at 12 and 36 hours of incubation. ADDONTM -RS supplementation at both levels (0.07g/100g TMR and 0.15g/100g TMR) resulted in significant (p less than 0.05) increase in in vitro microbial biomass production at 12 hours of incubation. In spite of peak summer, ADDONTM -RS supplementation in lactating dairy cattle prevented changes in body condition score, weight loss and resulted in significantly (p less than 0.05) higher milk yield without compromising on milk fat and SNF content and decreased somatic cell count in milk and improved manure quality.
On Numerical 2D P Colonies Modelling the Grey Wolf Optimization Algorithm

The 2D P colonies is a version of the P colonies with a two-dimensional environment designed for observing the behavior of the community of very simple agents living in the shared environment. Each agent is equipped with a set of programs consisting of a small number of simple rules. These programs allow the agent to act and move in the environment. The 2D P colonies have been shown to be suitable for the simulations of various (not only) multi-agent systems, and natural phenomena, like flash floods. The Grey wolf algorithm is the optimization-based algorithm inspired by social dynamics found in packs of grey wolves and by their ability to create hierarchies, in which every member has a clearly defined role, dynamically. In our previous papers, we extended the 2D P colony by the universal communication device, the blackboard. The blackboard allows for the agents to share various information, e.g., their position or the information about their surroundings. In this paper, we follow our previous research on the numerical 2D P colony with the blackboard. We present the computer simulator of the numerical 2D P colony with the blackboard and the results of the computer simulation, and we compare these results with the original algorithm.