Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of pre-competitive state anxiety levels in artistic gymnastics athletes

Anxiety can be assessed from the perspective of three dimensions: somatic anxiety refers to physiological changes, cognitive anxiety associated with the degree of worry or negative thoughts, and self-confidence is related to a belief in facing a challenge. The study aimed to identify pre-competitive state anxiety levels in artistic gymnastics athletes, to compare pre-competitive anxiety levels of these participants between age groups and their competitive experience levels. 115 female artistic gymnastics athletes were analyzed, with a mean age of 13.61 ± 2.12 years. The results demonstrate that in the analysis of the three dimensions, there was a statistically significant difference only in the dimension Self-confidence (p=0.012). In the pairwise comparison, Self-Confidence showed a statistically significant difference in the 16-19 years and 13-15 years groups and also in the 16-19 years and 9-12 years groups. In the variable competitive experience, we can also notice a statistically significant difference in national competitions between groups 9-12 and 16-19. It can be concluded that the athletes participating in the older age group have lower self-confidence levels compared to the other groups. These results indicate that the older the athletes, the greater their concern with their performance, fear of failure and expectation of performance, leading to low levels of self-confidence.
Salience, Incentives, and Timely Compliance: Evidence from Speeding Tickets

This paper studies the enforcement of fines. We randomly assign 80,000 speeding tickets to treatments that increase the salience of the payment deadline, late penalties, or both. Stressing the penalties significantly and persistently increases payment rates. Emphasizing only the deadline is not effective. The findings from the RCT are consistent with a survey experiment which documents the treatments' impact on priors about parameters of the compliance problem. Exploiting discontinuous variation in fines, we then document a strong price responsiveness: a 1% increase in the payment obligation induces a 0.23 percentage point decrease in timely compliance. This semi-elasticity suggests that the impact of the salience nudges is equivalent to the effect of a 4-9% reduction in fines.
A scale independent flexible bearing health monitoring index based on time frequency manifold energy & entropy

The Shannon entropy measure, applied to the time frequency distribution of a signal, is a reliable indicator to quantitatively analyze the health status of a rolling element bearing. Usually, however, conventional time frequency representations rely on the selection of the best scale of a base function in order to deal with the noise components present in a vibration signal. In this context, the time frequency manifold is a relatively new time frequency analysis method, capable of cancelling out or suppressing the majority of noise components by correlating the deterministic information of a faulty signal in its multidimensional phase space representation, rather than depending on the scale selection of a certain base function. With the aim of examining the merits of the time frequency manifold, in this research, the concepts of the time frequency manifold and Shannon entropy are integrated, so as to construct an accurate bearing health monitoring index. The effects of embedding dimension and time delay on the calculation of the proposed health index are studied. Simulated signals are employed in order to study the characteristic properties of the proposed index. Two experimental datasets are used to validate the effectiveness of the proposed method in compare to some conventional and hybrid bearing health monitoring indexes. Our research shows that the proposed index demonstrates a consistently good performance for both inner and outer race failure, in cases of run to failure bearing testing.
Sponge Fatty Acids, 5. Characterization of Complete Series of 2-Hydroxy Long-Chain Fatty Acids in Phospholipids of Two Senegalese Marine Sponges from the Family Suberitidae: Pseudosuberites sp. and Suberites massa

Phospholipid fatty acid composition was studied in two Senegalese sponges of the family Suberitidae. More than fifty acids were identified in either Pseudosuberites sp. or Suberites massa. A series of 2-hydroxy long-chain fatty acids (C 22 to C 27 ) accounted for almost 50% of the total acid mixture of Pseudosuberites sp. , including 2-hydroxyhexacosanoic acid (26%) and the unusual 2-hydroxy-heptacosanoic acid not yet reported in any sponge. A series of 3-hydroxy short-chain fatty acids was also detected in this sponge. Two new fatty acids were identified in these sponges, namely 4,8-dimethyldecanoic and 12-methyl-(Z)-6-tridecenoic, in addition to the rare 13-methyl-(Z)-4-tetradecenoic. Su. massa contained mainly 5,9-dienoic and trienoic demospongic acids
Modeling the Local Abundance of Shorebirds Staging on Migration

Four key variables of migration that can be used to model the abundance of shorebirds at staging areas during an autumn or spring migration are described. They are Overlap, the average time birds stop over at staging areas; Compression, the total length of time that the migration takes; Volume, the total number of birds that pass through on migration; and Residency, the number of birds "resident" during the nonbreeding season. An iterative method is described that uses the four variables to estimate the total number of shorebirds staging during the course of a single migration. While specifically applied to shorebird migrations, the model may also be used to model the dynamics of any animal population stopping over at a staging area on migration.
Diversity of mitochondrial DNA of the endangered white-clawed crayfish (Austropotamobius italicus) in the Po River catchment

Summary 1. The strong contraction of the European populations of white-clawed crayfish has stimulated research of its population genetics. As part of a conservation project to introduce and improve Italian populations of Austropotamobius italicus, the genetic diversity of 16 populations from 10 tributaries of the Po River drainage was evaluated by sequencing a 494 bp length of cytochrome oxidase subunit I (COI mtDNA). 2. The evolutionary tree topologies and the parsimony network of 26 haplotypes separated into two clusters, on the basis of high average genetic distance (6.51 ± 0.42%). This finding indicated the presence of distinct evolutionary lineages, other than different allopatric sources. 3. An ancestral haplotype (Nav) was identified and 13 haplotypes, found mainly as singletons, were independently connected to Nav by short branches with one mutation site. Unimodal mismatch distribution and the goodness-of-fit of the observed data reflected a model of sudden population expansion, after the last glacial bottleneck event. 4. A general moderate level of genetic variability (h = 0.22–0.7 and π = 0.045–0.27%) was highlighted within A. italicus populations inhabiting Alpine and Apennine tributaries of the Po River. Analysis of molecular variance (amova) revealed significant genetic structuring across all hierarchical levels, indicating that a major proportion of genetic variance is structured among localities within drainages. Multiple adjacent localities, strictly connected by the Po River, shared the two most frequent haplotypes (Nav and Laz), while remote populations, far from the Po River inflow, move towards a mtDNA fixation. 5. The results of this study indicate that distinct populations should be treated as separate entities for management. The key implication of the data is that ad hoc measures for successful programmes of recovery and management strategies for A. italicus conservation, such as the phylogeographic study of haplotype distribution at a local scale and the genetic variability of populations used as stock breeders, should be considered.
Diversity and distribution of hemi-epiphytes and facultative herbaceous epiphytes in Kibale National Park, Uganda

A survey of the hemi-epiphytes and other herbaceous facultative epiphytes was performed in Kibale National Park. A total of 100 major host trees were sampled in detail by a canopy-based single rope technique. A total of thirteen families, thirteen genera with 24 species were found being dominated in terms of species by the family Moraceae with nine species. The most common Ficus species were F. sasibarica and F. conracii, while the herbaceous facultative epiphytes had Rhipsalis baccifera, Peperomia manni and P. tetraphylla as the most common. Correlation analysis revealed no relationship between basal area and the Ficus species. The herbaceous facultative epiphytes increased significantly with increase in the host basal area. Ficus species and the herbaceous facultative epiphytes preferred the 'base' and 'mid' branch zones of the host trees characterized by a narrow range of vertical distribution in both the logged and un-logged forests. Most species were found in the 'light' and 'heavy' humus type of substrates. There was a tendency for the logged forests to have more hemi-epiphytes and the herbaceous facultative epiphytes than the un-logged forest types.
Solid State Fermentation of Aspergillus oryzae for Glucoamylase Production on Agro residues

Glucoamylase is a well recognized amylolytic enzyme used in food industry, which is generally produced by Aspergillus genus under solid-state fermentation (SSF). This study presents production of glucoamylase by Aspergillus oryzae on the solid surface of rice husk, wheat bran, rice bran, cotton seed powder, corn steep solids, bagasse powder, coconut oil cake, and groundnut oil cake as substrates. Optimization of the SSF media and parameters resulted in a 24% increase in the glucoamylase activity. Optimum glucoamylase production (1986 μmoles of glucose produced per minute per gram of dry fermented substrate) was observed on wheat bran supplemented with 1%, (w/w) starch, 0.25%, (w/w) urea at pH 6, 100%, (v/w) initial moisture and 30°C after incubation 120 hrs. Therefore, A. oryzae can be useful in bioprocessing application for saccharification of agro-residues. Keywords : Glucoamylase, Aspergillus oryzae, solid state fermentation, agro residues DOI: 10.3126/ijls.v4i0. 2892 International Journal of Life Sciences Vol.4 2010 pp.16-25
Digital Business Models for Sustainability

The transformation of industry in the digital age forces the organization to rethink of their business model. It was a clear indication that digital transformation is spreading across even the most traditional industrial and creating an astonishing array of business opportunities and threats. The digitization of tasks and processes has become essential to competition in the current scenario. Every organization is aiming for more profitable business with digitally enabled and outcome-based business models. The purpose of this paper is to understand an improved way of modelling the digital transformation of businesses. It aims to causally connect components of business models with characteristics of digital technologies. This also results in better understand the impact of technology for digitally driven business model. The major technology that drive the business digitally are cloud computing, internet of things, machine learning, robotics, mobile technology and big data. Successful digital transformation goes hand in hand with reengineering and optimization of business processes in the most appropriate way for the strategy. It is inevitable to understand that the digital transformation is not going to stop, and companies will find themselves on an everlasting journey with the need to adapt, rethink and reshape constantly. Digital platforms come with the promise of exponential growth, scale through network effects and no assets needed. Research shows that emerging digital ecosystems could account for more than $60 trillion in revenue by 2025. Digitalization radically transform business and society, destroying old business models and creating sustainable value.
Response of Japanese quails (Coturnix coturnix japonica) to dietary inclusion of Moringa oleifera essential oil under heat stress condition

Abstract The present study was aimed at investigating the effects of the dietary use of different doses of Moringa oleifera essential oil (MOEO) on performance parameters, internal organ weights and meat quality in Japanese quails (Coturnix coturnix japonica) exposed to Heat Stress (HS). For this purpose, 320 male day-old quail chicks were used. Seven days of preliminary (physical exercise) and a 35-day fattening period were applied. The animals were divided into 8 groups, each including 40 animals according to temparature (C: 25 °C and SC: 37 °C) and dietary doses (C, 200, 400 and 600). Each group was divided into 4 subgroups, each comprising 10 animals. The consequences of this study showed that, in the stress-free (HSF) groups, while all of the different doses of dietary MOEO positively affected growth performance, feed intake and feed efficiency, in the HS groups, similar positive effects were observed with the use of 200 ppm of dietary MOEO. While no effect was detected on internal organ weights on Days 21 and 42 in the HSF and HS groups, a dose-dependent increase was determined in the intestinal pH value on day 42 in the HS group (p < .05). Additionally, in the analysis of meat quality on the 21st and 42 days compared to the controls, no effect was observed on the meat colour parameters value and TBARS level in the HS and HSF groups. Based on the consequences of this study, it is considered that, MOEO could be used as an alternative product in poultry, at a dose of 200 ppm, to reduce the detrimental effects of HS. HIGHLIGHTS Temperature stress, performance parameters and serious problems in the health of poultry. Moringa olifera helps regulate performance parameters in poultry exposed to heat stress. Since the addition of Moringa oleifera to the diets does not affect the organ weight and meat quality in 21 and 42 days, it does not cause any negative effects for the consumer.
O impacto da segregação ocupacional por gênero e raça na desigualdade de renda no Brasil em três décadas (1986-2015)

The main objective of this paper is to analyze the occupational segregation by gender and race, and its impact on the income gap in Brazil between 1986 and 2015. In this sense, we replicated five multigroup indexes developed by Del Rio e Alonso-Villar (2015). They present global and local measures that allow to decompose wage inequality. Through the timely segregation analysis, we observed that economic, social and political processes in these 29 years led to equal occupational structure and labor market in Brazil. In addition, we only studied workers who attended higher education, in the South and Southeast regions. Results point out to a decreasing occupational segregation, especially by gender, although heterogeneities by schooling and on wage definition (discrimination) have been found.
Evolution of polyandry in a communal breeding system

The evolution of polyandry requires an asymmetrical factor that favors more matings per breeding female than per breeding male, thus reversing Bateman's principle. Here a model is presented for the evolution of avian cooperative polyandry. The model shows that polyandry can evolve if communal breeding is initially advantageous and if increasing clutch size beyond an optimum is detrimental. The advantage of communal breeding favors the addition of more breeders (either males or females) and thus selects against breeding as single pairs (monogamy). The optimal dutch size creates the asymmetry that favors adding male breeders (polyandry) over adding female breeders (polygyny). Adding females is detrimental because females must lay eggs to reproduce and can therefore increase the clutch size of die group. On the other hand, males can reproduce by sharing paternity without increasing dutch size. It is shown that cooperative polyandry evolves either because it maximizes both male and female fitness or because polygyny and monogamy are behaviorally unstable. Data from acorn woodpeckers support the assumptions of the model and suggest that cooperative polyandry evolved because it is behaviorally more stable. The persistence of monogamy and polygyny in acorn woodpeckers (at a lower incidence than polyandry) is also examined. Polygyny in these birds represents a case of the Prisoner's Dilemma. Kty words: acorn woodpeckers, communal breeding, cooperative polyandry, polyandry, Mdonopn forwadvorus, optimal dutch size, polygyny, Prisoner's Dilemma. [Behttv Ecol 8:668-674 (1997)]
An Online Data-Driven Method for Simultaneous Diagnosis of IGBT and Current Sensor Fault of Three-Phase PWM Inverter in Induction Motor Drives

This article presents an online data-driven diagnosis method for multiple insulated gate bipolar transistors (IGBTs) open-circuit faults and current sensor faults in the three-phase pulsewidth modulation inverter. The fast Fourier transform (FFT) algorithm is used to extract the fault frequency spectrum features of the three-phase currents. Then, a feature selection method named ReliefF is introduced to select the most critical features by removing redundant and irrelevant features. In addition, as novel fast learning technology, a random vector functional link network is applied to learn the faulty knowledge from the historical dataset. Based on the well-learned model, the fault type and location of the converter can be accurately identified as long as the three-phase current signals are measured. Offline test results verify that the proposed method can identify the IGBT and sensor faults with an accuracy of 98.83% and outperforms the state-of-the-art learning algorithms. Moreover, the real-time hardware-in-the-loop test results show that the proposed method can successfully identify the IGBT faults and current sensor faults within 22 ms. It is robust to the dc-link voltage fluctuations, model parameters, and speed or load variations. The extensibility of the proposed method is also validated based on the test results in terms of other fault modes and drive systems.
Study on Cultivating College Students' English Autonomous Learning Ability under the Flipped Classroom Model

Since the 21st century, the cultivation and improvement of college students' English autonomous learning ability have become an important symbol of deepening the reform of College English teaching. The reform of teaching model is the critical to it. With the help of the self-constructed flipped classroom teaching model, this paper designs the corresponding teaching process, aiming at investigating the three dimensions of self-management learning ability, self-learning psychology and self-learning behavior of non-English majors. After the investigation and experiment on the control class and the experimental class for the whole semester, the experimental results show that the self-regulated learning model of College English based on the flipped classroom can greatly improve the comprehensive English level of College students, and the flipped classroom teaching model of College English can effectively improve the students' self-management learning ability, stimulate students 'motivation of autonomous learning and activate students' autonomous learning behavior. Thus, it opens up a new path for the cultivation of College Students 'autonomous learning ability.
Amazing multifunctionality of calcineurin and NFAT signaling in bone homeostasis

The nuclear factor of activated T cells (NFAT) family of transcription factors was originally discovered in T cells as a regulator of cytokines such as interleukin-2, which induces T cell proliferation and differentiation (1;2). Calcineurin and NFAT have also emerged as important new regulators of bone homeostasis in both osteoclast differentiation and osteoblastic bone formation. The paper by Winslow et al. sheds light on novel aspects of the multiple functions of calcineurin and NFAT in the context of bone homeostasis using two intriguing genetic models (3). This report is of great importance not only because it supports the bifunctional role of NFATc1 in both bone resorption and formation, but also because it provides the novel insight that chemokines regulated by NFAT may contribute to the osteoblast-mediated regulation of osteoclastogenesis.
Causes and Consequences of Life-History Variation Among Strepsirhine Primates

The aims of this study were to examine potential causes of variation in fundamental life-history traits and to illuminate their consequences for social behavior in the most primitive living primates. Specifically, I reexamined the claim that life histories of strepsirhine primates (lemurs and lorises) are metabolically constrained and tested the hypothesis that female social dominance, a behavioral idiosyncracy of Malagasy strepsirhines, is the result of unusually high energetic maternal investment in reproduction. I collected data on body mass, brain mass, metabolic rate, and fetal and postnatal litter growth rates for 21 lemur and 13 loris species to examine the relationship between maternal investment and the other variables after controlling for allometric and phylogenetic effects. I found that evolutionary changes in fetal growth rates, relative litter mass, and postnatal growth rates were associated with evolutionary changes in maternal mass but that neither brain size nor metabolic rate were independently correlated with variables reflecting maternal investment. Evolutionary changes in all three variables reflecting maternal investment were positively correlated with one another, however, indicating that they are coadapted, only broadly constrained by body size, and unconstrained by brain size and metabolic rate. Lemurs and lorises were found to have similar postnatal litter growth rates; which reflect the bulk of maternal reproductive investment, indicating that the energetic costs of reproduction did not figure prominently in the evolution of female dominance. The suggested unusual energetic stress of reproducing lemur females is further refuted by qualitative comparison with higher primates and other mammals. Thus, strepsirhine life histories are not narrowly constrained by nonadaptive forces and have no direct consequences for social relations between adult males and females.
Microstructure, XRD and Mössbauer spectroscopy study of Gd doped BiFeO3

The results of fabrication process and characterization of Bi1-xGdxFeO3 (x = 0.05, 0.07, 0.10) ceramics are reported in the paper. The samples were prepared by standard solid state reaction method from the mixture of oxides: Bi2O3, Fe2O3 and Gd2O3. The influence of Gd substitution on the microstructure and density of Bi1-xGdxFeO3 was studied. Phase composition and structure of the obtained samples were investigated by Xray diffraction. It turns out that the Bi1-xGdxFeO3 solid solutions with x = 0.05 and 0.07 crystallize in trigonal structure characteristic of BiFeO3 compound. For the sample with x = 0.1, beside the major trigonal phase, 6% of orthorhombic phase typical for GdFeO3 was detected. Hyperfine interaction parameters were studied by M? ssbauer spectroscopy. M? ssbauer results proved that the spin cycloid characteristic of BiFeO3 compound gradually disappears when substituting Gd3+ ions at the Bi3+ sites.
Polyploidy accompanied by structural alterations in the evolution of Hesperis matronalis L.

Detailed cytological studies of the members of Brassicaceae are rather difficult to make because of the small chromosome size in most of the genera included in this family . How ever, the genus Hesperis L. , represented by a single species (H. matronalis L.) in Kashmir, has chromosomes large enough to permit a detailed study . During the course of our investiga tions on the cytogenetical behaviour of the Kashmir Brassicaceae, plants of H. matronalis were found to exhibit a high degree of variability especially as reflected in their flower colour. The present work was undertaken to assess the extent and nature of variability in this species.