Miracle-dz/UniFAR-FTUs huggingface dataset:
Liana community attributes in one of the northernmost neotropical rainforests

Background: Lianas are an important woody component of tropical rain forests. We described and compared the composition, structure, and diversity of the liana community in one of the northernmost neotropical rain forests. Question: How much does this liana community differ in attributes with global patterns documented in other tropical and subtropical rain forests? Study site and dates: Los Tuxtlas Tropical Biology Station, Veracruz, Mexico. 2015-2018. Methods: We censused all lianas ≥ 1 cm in diameter in a 1-ha plot and determined dominant families and species, diametric distribution, and diversity of order q. Results: We recorded 396 liana stems, 42 species, and 20 families. Basal area was 6619.2 cm2. Order 1 and 2 diversity was 21.9 and 13.4, respectively. Apocynaceae, Bignoniaceae, Celastraceae, and Malpighiaceae accounted for about 60 % of abundance and basal area, and 45.2 % of species richness. The 10 most abundant species included more than 60 % of stems and basal area. Conclusions: Species richness, abundance, and basal area were low compared with other tropical and subtropical sites worldwide. It was noteworthy the coincidence of some dominant species and families across the Neotropics and the absence of Fabaceae among the most important families. Latitudinal location and some key climatic factors such annual average rainfall and dry season length may explain, in part, our findings.
Moringa oleifera Hot Water Extract Protects Vero Cells from Hydrogen Peroxide-Induced Oxidative Stress by Regulating Mitochondria-Mediated Apoptotic Pathway and Nrf2/HO-1 Signaling

The present study discloses the identification of phenolic compounds in Moringa oleifera hot water extract (MOH) and the evaluation of its antioxidant activity on H2O2-induced oxidative stress in Vero cells. Upon analysis, MOH was found to contain phenolic compounds and indicated 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+) radical scavenging with IC50 values of 102.52 and 122.55 µg/mL, respectively. The ferric reducing antioxidant power (FRAP) of MOH indicated a dose-dependent increase with a maximum absorbance at 125 μg/mL and the oxygen radical absorbance capacity (ORAC) of MOH was 1004.95 µmol TE/mg. Results showed that MOH dose-dependently reduced intracellular ROS generation in H2O2-stimulated Vero cells while increasing the cell viability. Fluorescence microscopy and flowcytometric analyses have supported the above findings. MOH markedly suppressed the H2O2-induced mitochondrial depolarization and apoptosis through suppression of the mitochondrial-mediated apoptosis pathway and activated the Nrf2/HO-1 signaling pathway by possibly involving H2O2 generation in cell media. Findings of western blot were supported by immunocytochemistry of Nrf2 nuclear translocation. Thus, MOH bioactivity would potentiate its applications in manufacturing functional food.
Bibliometric Analysis of Oral Mucositis Research In Pediatric Oncology

Purpose: Individuals receiving cancer treatment experience many treatment-related complications. Since one of these complications is oral mucositis, studies are carried out on this subject. The purpose of this study is to analyse the studies examining oral mucositis in the pediatric oncology population by bibliometric methods.Methods: Bibliometric analysis was performed using the WosViewer software to scan the articles written in the relevant field. Publication trend, country distribution, journal and citation analysis, citation analysis of publications, keyword analysis of publications, text mining of abstracts were analysed. Results: In this study, 108 studies in the Web of Science database were examined. As a result of the analyses, it was determined that there was an increase in studies on the subject after 2017. It has been determined that America, Brazil and Canada are the countries with the highest number of studies on this subject and Supportive Care in Cancer is one of the journals in which the largest number of studies on the subject are published. It was found that the same journal was the journal in which the most cited studies in this field were published. Oral mucositis, mucositis and chemotherapy were determined as the most frequently used keywords.Conclusion: Studies of oral mucositis in the pediatric population tend to increase in recent years. Preserving this increase and accelerating the work to be done in this field will fill the gaps in the literature.
Trickle-Down Effects of Entrepreneurial Bricolage and Business Model Innovation on Employee Creativity: Evidence From Entrepreneurial Internet Firms in China

Although most existing studies have considered entrepreneurial bricolage as a means to overcome resource constraints in new ventures, few have explored the direct effects of entrepreneurial bricolage on employee creativity, particularly in the context of entrepreneurial internet firms. Drawing from multiple theories (i.e., social learning theory and social cognitive theory), this study proposes a cross-level mediation model for the trickle-down effects of entrepreneurial bricolage and business model innovation on employee creativity. By using a 2-wave longitudinal design, survey data were collected from multiple sources, including 49 leaders and 336 employees from entrepreneurial internet firms in China. Multilevel structural equation modeling (MSEM) was applied to analyze the cross-level mediation model. The results show that both entrepreneurial bricolage and business model innovation failed to significantly and positively direct employee creativity. Furthermore, entrepreneurial bricolage exerted a cross-level influence on employee creativity that was sequentially transmitted through between-level business model innovation and within-level creative self-efficacy. The theoretical and managerial implications of these findings are also discussed.
U-Shaped Association Between Serum Uric Acid Levels and Cognitive Functions in Patients with Type 2 Diabetes: A Cross-Sectional Study.

BACKGROUND Serum uric acid (SUA) is a natural antioxidant that may exert neuroprotective effects against neurodegenerative diseases. The relationship between uric acid and cognitive functions has been extensively studied, but results remain conflicting. OBJECTIVE To investigate potential associations between SUA level and mild cognitive impairment (MCI), and different domains of cognitive performances in patients with type 2 diabetes mellitus (T2DM). METHODS A total of 352 T2DM subjects (208 males and 144 females) were enrolled. SUA level was determined by using the uricase method. Cognitive performances were assessed using a validated neuropsychological test battery. Generalized additive models and binary logistic regression analysis were fitted to determine the association between SUA and cognitive functions. RESULTS A total of 157 T2DM patients had MCI, and 195 displayed normal cognition. Compared with the controls, MCI patients exhibited lower SUA level (p = 0.009). Generalized additive models revealed a U-shaped curve relationship among SUA with Montreal Cognitive Assessment, Auditory Verbal Learning Test-immediate recall and Trail Making Test-B scores (all p < 0.05). Further logistic regression analysis showed a significant trend toward decreased MCI risk with increased SUA level among the subjects whose SUA level was below the cut-point (388.63 μmol/L); each unit increment in SUA level reduced the MCI risk by 0.7% (p = 0.003). CONCLUSION A U-shaped association between SUA level and global cognitive function, especially executive and memory function, existed in T2DM patients. Our findings will provide additional suggestions that an increase of SUA to a certain level may be a novel method to reduce the burden of T2DM-associated cognitive impairment.
The Role of Reinforcement Learning in the Emergence of Conventions: Simulation Experiments with the Repeated Volunteer's Dilemma

We use reinforcement learning models to investigate the role of cognitive mechanisms in the emergence of conventions in the repeated volunteer’s dilemma (VOD). The VOD is amulti-person, binary choice collective goods game in which the contribution of only one individual is necessary and su icient to produce a benefit for the entire group. Behavioral experiments show that in the symmetric VOD,where all groupmembers have the same costs of volunteering, a turn-taking convention emerges, whereas in the asymmetric VOD,where one “strong” group member has lower costs of volunteering, a solitary-volunteering convention emerges with the strong member volunteering most of the time. We compare three di erent classes of reinforcement learningmodels in their ability to replicate these empirical findings. Our results confirm that reinforcement learning models canprovide aparsimonious account of howhumans tacitly agreeonone course of actionwhenencountering each other repeatedly in the same interaction situation. We find that considering contextual clues (i.e., reward structures) for strategy design (i.e., sequences of actions) and strategy selection (i.e., favoring equal distribution of costs) facilitate coordinationwhenoptimaare less salient. Furthermore, ourmodels producebetter fits with the empirical datawhen agents actmyopically (favoring current over expected future rewards) and the rewards for adhering to conventions are not delayed.
The effect of winter fodder beet or kale allocation on behaviour and blood metabolite status of non-lactating dairy cows

Fodder beet (FB) was at first rapidly adopted by farmers, however, there is uncertainty around the impact of feeding high rates of FB on metabolic diseases and cow behaviour. This study aimed to establish if there was an effect of crop type and feed allocation on blood metabolites and behaviour of dairy cows. In winter 2017, 328 mixed-aged pregnant non-lactating Friesian x Jersey cows were allocated to feeding treatments of either FB or kale, offered at two allocation rates: “target” (to achieve 0.5 BCS gain) or “high” (ad libitum allocation), supplemented with pasture baleage. Blood metabolites were monitored for 20 animals per treatment, 15 of those animals per treatment had an activity sensor fitted for 8 days in late July. Cows fed FB had higher plasma magnesium and lower sodium, phosphate, total protein and urea levels than cows fed kale. The FB cows spent less time lying (9.4 vs 11.1 h/d), walked more (2113 vs 1737 steps/day), had fewer lying bouts per day (6.1 vs 9.3 bouts/day), but had longer bout duration (102 vs 81 min) than kale cows. These results indicate differences between winter crops in susceptibility to metabolic diseases and grazing activity which require further investigation.
Detection of Anti-SARS-CoV-2-S1 RBD-Specific Antibodies Prior to and during the Pandemic in 2011–2021 and COVID-19 Observational Study in 2019–2021

Background: Longitudinal surveys to monitor the seroprevalence are required to support efforts for assessment of the levels of endemic stability in certain countries. We investigated seroprevalence of anti-SARS-CoV-2-S1 receptor-binding domain (RBD)-specific antibodies in the serum samples in 2011–2021, including a cohort study of 2019–2021, to evaluate the vaccination and anti-IgG-SARS-CoV-2–S1 RBD-positive statuses to assess the resistance and severity of COVID-19. Materials and Methods: Anti-SARS-CoV-2-S1 RBD-specific antibodies were assayed in the serum samples (N = 565) randomly selected from various cohorts previously recruited from 2011 to 2021 from the city of Moscow and Moscow Region. Among them there were the participants (N = 310) recruited in 2019–2021 with an endpoint of 30 October 2021 when these participants were interviewed over phone with relevant questionnaire. Results: Obtained data indicated a percentage of 3–6% of SARS-CoV-2-S1 RBD-specific antibodies detected in participants recruited in 2011–2019. The percentage of SARS-CoV-2-S1 RBD-specific antibodies was increased to 16.5% in 2020 and to 46% in 2021. The vaccination rate of 238 respondents of this cohort was 58% from August 2020 to October 2021. In total, 12% of respondents were hospitalized. The morbidity rate in the subgroup of anti-SARS-CoV-2-S1 RBD-positive respondents was 5.4-fold higher than that in the subgroup of vaccinated respondents. Conclusions: A small percentage of SARS-CoV-2-S1 RBD-specific antibodies detected in 2011–2019 indicated possible spreading of coronaviruses during the pre-pandemic period. Collective immunity in Moscow and the Moscow region was able to reach 69% from August 2020 to October 2021 if this rate is added to the rate of not vaccinated SARS-CoV-2-S1 RBD-positive subjects.
Hábitos alimenticios, nocivos y rendimiento académico en estudiantes universitarios en tiempos de Covid-19

Los hábitos alimenticios influyen drásticamente en el rendimiento académico universitario, teniendo consecuencias a corto, mediano y largo plazo. Objetivo. Identificar los hábitos alimenticios nocivos y rendimiento académico en estudiantes universitarios en tiempos de Covid-19 en Ecuador-Azogues. Metodología. Estudio descriptivo transversal, población de estudio 623 estudiantes universitarios de la carrera de Medicina, se les aplicó una encuesta, el análisis estadístico se lo realizó mediante SPSS V20. Resultados. El 64,7% corresponden al sexo femenino, 58,3% proceden de la provincia del Cañar, el 82,7 son católicos y el 10,1% presentan bajo rendimiento, de los cuales el 28,6% presentaron sobrepeso y la probabilidad de que estos estudiantes tengan bajo rendimiento fue del 63%. Se demostró también que el 82,5% de estudiantes consumen comida chatarra, existiendo 3 veces (RP 3,12; IC95% 1,88-5,26) más probabilidad de que éstos estudiantes tengan bajo rendimiento, el sexo masculino también presentó 1,6 veces (IC95% 1,04-2,65) más probabilidad de tener bajo rendimiento en comparación con el sexo femenino, mientras que los estudiantes que proceden de las distintas provincias tienen 1,6 veces (RP 1,63; IC95% 1,03-2,63) más probabilidad de tener rendimiento deficiente. Un 85,7% de estudiantes consume alcohol y al menos el 25,4% ha consumido drogas existiendo 2 veces (PR 2; IC95% 1,19-3,44) más probabilidad de que estos estudiantes bajen su rendimiento. Conclusiones. Se determinó que el bajo rendimiento académico está relacionado no solo por el sexo sino también, por la procedencia, la malnutrición, consumo de comida chatarra y uso de drogas incrementando la proporción de estudiantes con bajo rendimiento.
The Glycemic Control Potential of Some Amaranthaceae Plants, with Particular Reference to In Vivo Antidiabetic Potential of Agathophora alopecuroides

Natural products continue to provide inspiring moieties for the treatment of various diseases. In this regard, investigation of wild plants, which have not been previously explored, is a promising strategy for reaching medicinally useful drugs. The present study aims to investigate the antidiabetic potential of nine Amaranthaceae plants: Agathophora alopecuroides, Anabasis lachnantha, Atriplex leucoclada, Cornulaca aucheri, Halothamnus bottae, Halothamnus iraqensis, Salicornia persia, Salsola arabica, and Salsola villosa, growing in the Qassim area, the Kingdom of Saudi Arabia. The antidiabetic activity of the hydroalcoholic extracts was assessed using in vitro testing of α-glucosidase and α-amylase inhibitory effects. Among the nine tested extracts, A. alopecuroides extract (AAE) displayed potent inhibitory activity against α-glucosidase enzyme with IC50 117.9 µg/mL noting better activity than Acarbose (IC50 191.4 µg/mL). Furthermore, AAE displayed the highest α- amylase inhibitory activity among the nine tested extracts, with IC50 90.9 µg/mL. Based upon in vitro testing results, the antidiabetic activity of the two doses (100 and 200 mg/kg) of AAE was studied in normoglycemic and streptozotocin (STZ)-induced diabetic mice. The effects of the extract on body weight, food and water intakes, random blood glucose level (RBGL), fasting blood glucose level (FBGL), insulin, total cholesterol, and triglycerides levels were investigated. Results indicated that oral administration of the two doses of AAE showed a significant dose-dependent increase (p < 0.05) in the body weight and serum insulin level, as well as a significant decrease in food and water intake, RBGL, FBGL, total cholesterol, and triglyceride levels, in STZ-induced diabetic mice, compared with the diabetic control group. Meanwhile, no significant differences of both extract doses were observed in normoglycemic mice when compared with normal control animals. This study revealed a promising antidiabetic activity of the wild plant A. alopecuroides.
The Forecast Skill of the Northern Hemisphere Middle Latitudes Seasonal Oscillation and Its Impact on the Surface Air Temperature

This study examines the sub‐seasonal forecast skill of the dominant mode of atmospheric circulation variability in the Northern Hemisphere (NH) mid‐latitudes, the Middle Latitudes Seasonal Oscillation (MLSO), and the influence of MLSO on the forecast skill of surface weather in this area. The analysis is conducted using reforecasts produced by four forecast systems, which archive their output in the Subseasonal‐to‐Seasonal (S2S) Data Base. A reduced ensemble of reforecasts for each model is verified against the ERA‐Interim reanalysis. The S2S models display significant ability to predict the MLSO on the S2S time scale. The MLSO prediction skill is higher in boreal winter than in summer. A relationship is found between the MLSO and the forecast skill of 2‐m temperature (T2m) in the NH mid‐latitudes during the extended boreal winter. The prediction of T2m improves when MLSO events are in the initial conditions and the improvement depends on the phase of MLSO.
Using DNA Metabarcoding to Identify Floral Visitation by Pollinators

The identification of floral visitation by pollinators provides an opportunity to improve our understanding of the fine-scale ecological interactions between plants and pollinators, contributing to biodiversity conservation and promoting ecosystem health. In this review we outline the various methods which can be used to identify floral visitation, providing a comparison between molecular and non-molecular methods. We review the literature covering the ways in which DNA metabarcoding has been used to answer ecological questions relating to plant use by pollinators and discuss the findings of this research. We present detailed methodological considerations for each step of the metabarcoding workflow, from sampling through to amplification and finally bioinformatic analysis. Detailed guidance is provided to researchers for utilization of these techniques, emphasizing the importance of standardization of methods and improving the reliability of results. Future opportunities and directions of using molecular methods to analyze plant-pollinator interactions are then discussed.
Specification and runtime monitoring of object-oriented systems

The object-oriented (OO) approach has fundamentally changed the way we look at software, and has had an enormous influence on the software engineering discipline. Through the use of powerful tools such as inheritance and polymorphism, developers can specialize and enhance software systems while reusing large portions of already existing code. However, the use of these features can result in complex interactions and dependencies among parts of the code, which may make it difficult when trying to understand and reason about the system's behavior. We will show how such difficulties can be addressed by the use of specifications which provide essential information about how the system can interact with external components. Although such specifications allow us to formally reason about systems in a modular way, to fully realize their benefits, we also need suitable software tools that can be used by general practitioners. Here, we present such a tool which allows for monitoring of systems at runtime to identify any violations of these specifications. The tool exploits the same mechanisms of inheritance and polymorphism, and does not require the availability of the system source code. We will also look at how a similar approach can be applied to track the execution flow through OO class hierarchies. Design patterns, a progression from class-level to design-level OO reuse, have also had a large impact on the way we think about and design large software systems. Not only do patterns allow for the reuse of time-tested solutions, but they also enable others studying the system in question to get a deeper understanding of how the system is built and why it behaves in particular ways. Design patterns have traditionally been presented in an informal manner, however, and such descriptions often contain ambiguities that can lead to different interpretations and assumptions made about specific parts of the system. This can result in misunderstandings among developers working on the same project, and can eventually manifest themselves as incompatibilities among different parts of the system. Hence, we again need ways to precisely specify behaviors of patterns and systems built using them, as well as software tools to monitor the systems to identify any violations of the specifications. We present a pattern contract language that addresses the specificity of individual applications, while maintaining the flexibility inherent in the design patterns. We then present a tool which generates aspect-oriented monitors for checking pattern contract violations during runtime.
Effect of Ultrafast Broadband Nonlinear Optical Responses by Doping Silver into Ti3C2 Nanosheets at Visible Spectra

Ti3C2 nanosheet is a newly discovered two-dimensional (2D) clan. It turns out to have encouraging applications for electromagnetic shielding and energy storage. Here, Ag@ Ti3C2 hybrids are precisely synthesized by using the one-step solution processing method. Also, their ultrafast broadband nonlinear optical responses in the visible region are studied systematically through nanosecond open-aperture Z-scan and transient absorption techniques. The mechanism of two-photon absorption (TPA) is disclosed in the visible region (409–532 nm). When the laser energy is low and the wavelength is longer than 400 nm, nonlinear absorption cannot happen. Meanwhile, as the laser energy increases, two photons will be absorbed by the electrons in the valence band and the electrons will jump to the conduction band. The process is named as two-photon absorption which will make the specimen show reverse saturable absorption (RSA) properties. What is more, the ultrafast carrier dynamics of the specimen are studied by using the transient absorption. The result shows that the decay contains two phases: the fast and then the slow one. The two phases first come from electron–phonon and then from phonon–phonon interactions, respectively. The electron transfer and charge carrier trapping processes are further verified by the outcomes of similar measurements on Ag@ Ti3C2 hybrids. Besides, the two decay processes increase together with the pump fluence. These results show that Ti3C2 nanosheet has potential applications in broadband optical limiter.