Miracle-dz/UniFAR-FTUs huggingface dataset:
Students’ perceptions of, and emotional responses to, personalised learning analytics-based feedback: an exploratory study of four courses

Abstract Research and development in learning analytics has established viable solutions for scaling personalised feedback to all students. However, questions remain regarding how such feedback is perceived, interpreted and acted upon by stakeholders. The present study reports on the analysis of focus group data from four courses to understand students’ sensemaking of personalised, learning analytics-based feedback. Deductive analysis and epistemic network analysis were carried out to identify students’ perceptions and associated emotional responses to the feedback. The results demonstrate that students mostly held positive perceptions of their feedback – especially in regard to quality, task-focus and instructor care. While emotions to feedback were often negative, students also noted this increased their motivation to invest more effort in the learning tasks. The results of the study provide further evidence of the interpersonal communication variables influencing students’ proactive recipience of feedback. Importantly, the findings show that students were mostly actively engaged with their personalised feedback, and that the instructor-mediated approach to feedback based on learning analytics is aligned to the principles of effective feedback.
Organisation des molécules extractantes de type diamide : lien avec les propriétés extractantes ?

The aim of these studies is to establish a link between the different organizations of diamide extractants (used in the DIAMEX process) and their extracting properties. The effects of the key parameters leading the liquid-liquid extraction (concentration of extractant, nature of solute, activity of the aqueous phase, nature of the diluent and temperature) are studied : 1) at the supramolecular scale, with the characterization of the extractant organizations by vapor-pressure osmometry (VPO) and small angle neutron and X-ray scattering (SANS/SAXS) experiments ; 2) at the molecular scale, with the quantification of the extracted solutes (water, nitric acid, metal nitrate) and the determination of extracted complexes stoichiometries by electrospray mass spectrometry (ESI-MS) experiments. The DMDOHEMA molecule acts as a classical surfactant and forms aggregates of the reverse micelle type. Taking into account the established supramolecular diagrams, a quantitative link between the extractants structures and their extracting properties has been brought to light. To model the europium nitrate extraction, two approaches have been developed: - an approach based on mass action laws. Extractions equilibria have been proposed taking into account the supramolecular speciation; - an innovative approach considering the extracted ions as adsorbed on a specific surface of the extractant molecule which depends on the extractant organization state. The ion extraction can be considered as a sum of isotherms corresponding to the different states of organization. This approach allows to compare the extraction efficiency of an extracting molecule as a function of its organization state.
The Health in the Value System of Russian Youth: Contradictory Discursive Practices

The axiological aspects of the self-preserving behaviour of Russian youth are considered on the basis of the data of sociological studies. The contradiction between the high value of health in the minds of modern youth declared and the underdevelopment of daily practices aimed at its preservation and strengthening is revealed. The probable causes of the contradiction are listed; they are related as to the specifics of this socio-demographic group, to its hedonistic orientation, to situational orientation of thinking, and also to the limited capacity of youth in relation to receiving medical and preventive services. Conclusion was made that it is necessary to form the axiological-and-motivational foundations of self-preserving behaviour of Russian youth as one of the most important directions in the implementation of the state policy to protect public health in general.
Relationship between Psychological Capital and Quality of Life: The Role of Courage

Quality of life is a multidimensional concept, a construct influenced by objective and subjective factors that include the evaluation of functional, physical, social, and emotional aspects of the person. The recent contributions of positive psychology present the quality of life as a fundamental indicator for health promotion and prevention strategies. In the recent psychological studies about this topic, courage demonstrated to positively affect several work behavioral outcomes, personal identity, and prosocial actions. Courage promotes change, innovation, and coping skills to achieve aims, and it correlates positively with many individual resources. The aim of the study was to investigate, according to the positive psychology approach, the relationships between psychological capital and two dimensions of quality of life—life satisfaction and flourishing—with particular attention to the mediation function performed by courage. The research was attended by a convenience sample of 807 Italian workers, balanced by gender, belonging to public, private, and non-profit organizations, and recruited on a voluntary basis. Participants responded to a structured online questionnaire containing the following measures: Psychological Capital Questionnaire, Courage Measure, Satisfaction with Life Scale, and Flourishing Scale. Cronbach’s alpha on each scale showed very good internal consistency. The collected data were analyzed according to a model of linear structural equations. In the first step, we conducted a confirmatory factor analysis (CFA) to test the model fit of the measurement model; in the second step, we verified the mediation hypothesis through Process v.3. 1. Finally, the correlations were implemented using SPSS 20.0. The results showed that, in general, psychological capital predicts life satisfaction and flourishing, with an indirect mediation effect of courage only on flourishing. Two main conclusions emerged from the study: flourishing and life satisfaction are representative indicators of the quality of life; courage emerges as an important psychological resource that supports the individual to face and manage the uncertainties of the risk society.
Phytochemical Investigation on Volatile Compositions and Methoxylated Flavonoids of Agrostis gigantea Roth

In this study, methoxylated flavonoids and volatile constitutions of Agrostis gigantea Roth (Poaceae) were investigated for the first time. The flavonoids were identified by spectroscopic methods (1H-NMR, 13C-NMR, COSY, NOSEY, TCOSY, and HMBC). The volatile constitutions of aerial parts and seeds were analyzed by gas chromatography–mass spectrometry (GC-MS). Two methoxylated flavonoids, luteolin 5-methyl ether (1), and cirsilineol (2) were isolated from the aerial parts of this plant. According to the GC-MS data the main constitutions of these volatile oils belong to the simple phenolic category which include coniferyl alcohol (18.80%) and eugenol (12.19%) in aerial parts and seeds, respectively. By using the computer- aided molecular modeling approaches, the binding affinity of these compounds was predicted in the catalytic domains of aryl hydrocarbon receptor (AhR). These two isolated flavonoids were investigated in-vitro for their inhibitory activity on 4T1 breast carcinoma cells. It was predicted that these compounds could be well-matched in aryl hydrocarbon receptor (3H82) active site, but based on the in-vitro assay, the IC50 values on cytotoxicity were 428.24 ±3.21 and 412.7±3.02 μg/mL for luteolin 5-methyl ether and cirsilineol, respectively. Thus, it can be concluded that these flavonoids exhibit low cytotoxicity against 4T1 breast carcinoma cell line.
Social Capital and Corporate Performance: Evidence from State Capital Enterprises in Vietnam

The research has been conducted to explore the combination of three intangible resources, including social capital, entrepreneurship, and resilience capability on the performance of State Capital Enterprises (SCEs) in Vietnam. Both qualitative and quantitative approaches are applied in the study. An in-depth interview of ten CEOs at SCEs in Vietnam was made to explore new indicators for the contextual latent variables in the research models. By employing the data from the authors’ survey of 568 SCEs in Vietnam in 2019, using Cronbach’s alpha, confrmatory factor analysis (CFA) and path analysis (SEM), the mechanism that social capital impacts on SCE performance has been analyzed. In addition to the direct role, social capital indirectly aﬀects corporate performance through entrepreneurship and resilience capability. It was found that social capital has a larger impact on entrepreneurship than resilience capacity. However, the contribution of resilience capacity to the frm performance is much more than the entrepreneurship’s in Vietnamese context. This study enriches the theory by proposing a measurement scale of the contextual latent variables as a result of in-depth interviews with experts using a qualitative analysis technique. In addition, the path analysis fndings suggest practical implications for managers to eﬀectively use their resources in SCEs.
Hydrological response to changing climate: a case study of large watershed, Xianning, Hubei, China

ABSTRACT This study is composed of assessment of air temperature, rainfall, available water reservoir, and runoff potential. The analysis of air temperature and rainfall (1996–2010) in the Xianning watershed, which was composed of Tongcheng, Chibi, and Jiayu small catchment areas was carried out and various extreme events (for example, floods in Yangtze river) were recorded. The climatic conditions of the watershed were evaluated over a period and the impacts of climatic change were investigated. Then, a forecasting model was developed for the future climatic changes (up to 2025) and the hydrological response due to these climatic changes in the study area was discussed. The results showed increasing temperature and decreasing rainfall, and that the changing climate mostly drifted during the 1990 s and onwards. It is foreseen that the natural extreme events have shifted with the seasons and there is an increase in the frequency and intensity of extreme. The future planning for water resources ought to consider the probable environmental change scenario, which entails an indulgence of both sensitivities to change and recent changeability over time.
Effect of Black Soldier Fly (Hermetia illucens) meals on the meat quality in broilers

The experiment aimed to assess the effect of dietary inclusion of meals derived from Black soldier fly (BSF) larvae on the meat quality in broilers. The birds were divided into three groups according to the formulated diets: control (CON)– receiving standard diet, Т1 – receiving 5% partially defatted and Т2 – receiving 5% full fat BSF meal during the finishing period (14–35 d). At the age of 35 days, 10 broilers from each group were slaughtered for meat quality evaluation. The dietary inclusion of the BSF meals was associated with decrease of pH and lighter colour of the meat. The total amount of the saturated fatty acids (SFA) and atherogenic index (AI) were increased, while polyunsaturated fatty acids (PUFA), the ratios between PUFA and SFA (P/S), n-6/n-3 PUFA and hypo/hypercholesterolemic fatty acids (h/H) were decreased in the meat of the broilers consuming insect meals. The results of the study suggest good prospective for further research with the examined BSF meals for broiler nutrition to formulate feeding strategies that will not alter negatively meat quality and its healthy value.
PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS AS INFLUENCED BY HERBICIDES APPLICATION

Soybean ( Glycine max ) is an annual crop belonging to the family Fabaceae, which has erectand bushyleaf plantstructure. Farmers in some parts of the world hasten the maturity and dryingof soybean crop by applying herbicides without giving attention toitseffects on seed quality.However, most of the soybean farmers plant own - saved seeds.The objective of this study was to investigate the soybean seed physiological quality afterherbicides applicationas desiccant. Three cultivars of soybean seed were planted and three types of herbicides Glyphosate, Paraquat and2,4-D were sprayed at three different stages/time of soybean seed development R6, R7 and R8. The experiment was laid as split-split plot arrangement in RCBD, replicated three times in three locations Busia ATC, Mabanga ATC and UoE in 2017 raining season. The physiological quality aspects of the threshed seeds samplesweredetermined through standard germination test, first count, electrical conductivity test, and speed of germination (GI) as measures of vigor. Herbicides application reduced soybean seed germination with highest effect in 2,4-Dtreatment by 42.2%. The seed vigor was also reduced with higher effect in 2,-4D treatment in all the vigor tests conducted than the control. It was observed that herbicides andtimestages of application reduced seed quality; and paraquat can be used to desiccate soybean at R8
SEED GERMINATION PLASTICITY OF TWO ENDANGERED SPECIES OF FERULA IN THE CONTEXT OF CLIMATE CHANGE

Ferula assa-foetida and F. gummosa, Apiaceae, are important endemic and endangered medicinal plants. Survival of the species is threatened by climate change, overexploiting (as source of oleo-gum resin and forage) and lack of organized cultivation. Cultivation of these valuable medicinal plants is restricted by insufficient domestication knowledge. Germination characteristics of different popula-tions of Ferula taxa were studied with the aim of describing and comparing their responses to continu-ous cold stratification condition. Germination cues for the species were complex, with dormancy mechanisms present to restrict germination until cold stratification are fulfilled. Results indicated that a period of 4 weeks of stratification is sufficient for germination of F. assa-foetida, but optimal germi-nation of F. gummosa require stratification for periods of 8 weeks. Both species were able to germi-nate at very low temperatures (4°C). Within-taxon differences in dormancy breaking and seedling emergence may interpret as local adaptations. The continued regeneration and propagation of the species in the wild will depend on the temperature and moisture status of the soil during winter and the maintenance of conditions suitable for stratification for an appropriate length of time.
Leadership for Organisational Adaptability: How Enabling Leaders Create Adaptive Space

Organisational adaptability is the ability of an organisation to recognise the need to change and seize opportunities in dynamic environments. In an increasingly complex world, leadership must pay attention to dynamic, distributed, and contextual aspects in order to position their organisations for adaptability. The theory of dynamic capabilities constitutes a central concept for the requirements that enable organisational adaptability. Recent research suggested a model of “leadership for organisational adaptability” embedded in the theory of dynamic capabilities and ambidextrous leadership. This model ascribes leaders the task of creating “adaptive spaces”, which are ways to engage in tension that arises when new ideas collide with an organisation’s operational system, in order to generate and scale innovation. This work employs a qualitative research design by conducting expert interviews with participants from the management consulting industry as an exemplary object of research, and it identifies ways by which leaders can create such adaptive spaces. Findings indicate that leaders predominantly achieve this by providing employees with head space and opportunities to connect with others and promote diversity within their organisations. However, they could engage more actively in activities that pressure the organisation to change, leverage network structures to scale innovation, and in developing employees. It further emerged that organisations have not fully internalised the notion of distributed leadership, which is deemed crucial for coping with complexity.
Properties of calcium sulfoaluminate cement-based grouting materials with LiAl-layered double hydroxides slurries

In this study, LiAl-layered double hydroxides Lithium aluminum hydrotalcite (LiAl-LDH) with different specific surface area were prepared by the separate nucleation and aging steps (SNAS) method and then were employed to prepare calcium sulfoaluminate cement-based grouting material (CBGM) paste. The influence of LiAl-LDH slurries on fresh and hardened properties of the CBGM paste was investigated in terms of fluidity, stability, setting time, and compressive strength. Additionally, the hydration process and hydration products of the CBGM paste were characterized by hydration heat, X-ray diffraction, differential thermal analysis–thermogravimetry, and Fourier transform infrared analyses. The acquired results illustrated that LiAl-LDH with larger specific surface area led to a faster hydration rate at early age, a lower fluidity, a shorter setting time, and a higher stability. Furthermore, due to the crystal nucleation effect, the addition of LiAl-LDH slurries did not cause a new phase to form but changed the morphology and increased the amount of hydration products, yielding higher compressive strength.
Fatty acid profile and oxidative stability of egg yolks from hens under different production systems

AbstractThis study was carried out to compare the egg quality, fatty acid (FA) profiles, and oxidative stability of yolks from hens maintained in cages and fed a conventional diet (CON), those fed a conventional diet with free access to outdoor grassy area (5 m2/hens) under free-range conditions (FR), and those fed an organic diet and free access to outdoor grassy area (10 m2/hens) under in organic system (ORG). Heavier eggs were produced by CON, while percentages of yolk and eggshell were greater in eggs of FR and ORG hens. The FR and ORG hens produced eggs that contained significantly more monounsaturated fatty acids (MUFAs) but less polyunsaturated fatty acids (PUFAs) than CON hens. Eggs from FR and ORG hens had a lower concentration of PUFA n-6 because of less C18:2 n-6 (linoleic acid) and a higher percentage of PUFA n-3 (eicosapentaenoic acid). Consequently, the ratio of PUFA n-6 to n-3 for eggs from FR and ORG hens was healthier for consumers compared with CON. However, eggs from the ORG hens had a similar FA profile to those from the FR hens. No significant differences were noted in hypocholesterolaemic (HI), atherogenic (AI) and thrombogenic indexes. Antioxidant concentration was greatest in eggs from ORG hens (retinol-14.32 μg/g and α-tocopherol-98.7 μg/g/yolk). Thus, the oxidative stability of eggs measured after storage at 4°Cfor 15 or 30 days was improved. The best eggs in terms of nutritional value were from the ORG system in which hens lived in their natural environment. Keywords: antioxidants, conventional production, egg quality, free range production, malonaldehyde, organic production
IN VITRO CYTOTOXICITY ANALYSIS AND SYNTHESIS OF BIOCIDAL ALLICIN/MT/MMA/PEG/POSS NANOCOMPOSITES FOR THE FOOD PACKAGING

Bu calismada, antibakteriyel ve antioksidan kurkumin (Cr) ve allisin (Ac), yuksek mekanik mukavemetli montmorillonit kili (Mt) ve biyouyumlu polimetilmetakrilat (PMMA), polietilen glikol (PEG) ve polioktahedral oligomerik silseskioksan (POSS) polimerleri kullanilarak yeni nanokompozitler sentezlenmistir. Oncelikle, Ag+-montmorillonit, kurkumin ekstrakti ve POSS kullanilarak monomer 1 sentezlendi, daha sonra sentezlenen monomer 1, MMA ve PEG polimerleri ile etkilestirilmis, ve nanokompozitler sentezlenmistir. Sentezlenen yuzey nanokompozitler, Fourier Transform Kizilotesi Spektroskopisi (FTIR), X-isini kirinimi (XRD) ve taramali elektron mikroskopisi (SEM) yontemleri kullanilarak analiz edilmistir. Daha sonra, nanokompozitlerin inhibisyon bolgesi alanlari ve yuzey aktivite direncleri, Escherichia coli (E.coli), Listeria monocytogenes (L. monocytogenes), Salmonella ve Staphylococcus aureus (S.aureus) bakterilerine karsi analiz edilmis ve biyouyumluluk testleri yapilmistir. Analiz sonuclarina gore, nanokompozitlerin guclu antibakteriyel dirence ve biyouyumluluga sahip oldugu bulunmustur.
Rotifers in Heated Konin Lakes—A Review of Long-Term Observations

The Konin lakes, heated by power stations and invaded by alien organisms, are a natural laboratory in which we can study the impact of climate change on the native communities of aquatic organisms. The aim of our study was to assess the impact of water heating and the occupation of the littoral zone of the lake by invasive species Vallisneria spiralis on changes in the species structure of rotifer communities of plankton, epiphyton and psammon. The archival material was used from the years: 1970–1975, 1978 and 1983, and compared with the results of studies conducted in Licheń and Ślesin Lakes in the years 2010–2011 and 2017–2018. It has been shown that the heating of waters of the studied lakes, combined with the shortening of their retention time, as well as the invasions of alien species, have caused significant changes in the taxonomic and trophic structure of plankton rotifers. In inhabiting Vallisneria bed epiphytic rotifer communities, the share of alien species did not increase, but relatively high densities of uncommon sessile species still persist. Psammon communities in the lakes are dominated by monogonont species relatively common in this habitat in nonheated lakes, but they are nearly devoid of bdelloids, which are abundant in psammon of Masurian lakes.
Potential role of lactoferrin in early diagnostics and treatment of Parkinson disease

Incidence of Parkinson disease progressively grows with increasing age and percentage of elderly people in the global population. Clear understanding of the causes of dopaminergic neurons’ death in Substantia nigra and Parkinson disease pathogenesis are currently absent, not speaking of an efficient therapy. However, an early diagnosis of dopaminergic neurons’ degeneration and prescription of dopamine replacement therapy significantly slow down the rate of symptoms’ progression. An increased concentration of iron in Substantia nigra of Parkinson disease patients has been shown in several studies. In this review we summarized the data concerning a potential significance of lactoferrin, the iron-binding protein of exocrine secretions and neutrophils, for early diagnosis and treatment of Parkinson disease. Salivary and lacrimal lactoferrin levels in Parkinson disease patients were higher than those observed in the control group. Plasma levels of lactoferrin inversely correlated with Parkinson disease severity even after treatment with Levodopa, a dopamine agonist, and with monoaminooxidase inhibitors. Lactoferrin levels in cerebrospinal fluid of Parkinson disease patients negatively correlated with the tumor necrosis factor-alpha concentration. Lactoferrin treatment of rodents with several experimental models of Parkinson disease (induced by rotenone, MPTP) protected neurons and mitigated the symptoms of neurodegeneration. Some contradictions about the positive effects of lactoferrin as a remedy in Parkinson disease animal models and possible participation of lactoferrin in accumulation of iron in neurons are discussed.
ACT Preparation and the Percent of Variability in First-Year Engineering Student GPA Explained by ACT Scores

Terri Tinnell is a STEM Education PhD Candidate and Research Assistant with the Engineering Fundamentals Department in JB Speed School of Engineering at the University of Louisville. Research interests include: interdisciplinary faculty development, first-year engineering student retention, STEM teacher education, and academic experiences within environments that encourage collaborative, active, and team-based learning (such as Makerspaces).