Miracle-dz/UniFAR-FTUs huggingface dataset:
An Ensemble Prediction Model for Potential Student Recommendation Using Machine Learning

Student performance prediction has become a hot research topic. Most of the existing prediction models are built by a machine learning method. They are interested in prediction accuracy but pay less attention to interpretability. We propose a stacking ensemble model to predict and analyze student performance in academic competition. In this model, student performance is classified into two symmetrical categorical classes. To improve accuracy, three machine learning algorithms, including support vector machine (SVM), random forest, and AdaBoost are established in the first level and then integrated by logistic regression via stacking. A feature importance analysis was applied to identify important variables. The experimental data were collected from four academic years in Hankou University. According to comparative studies on five evaluation metrics (precision, recall, F1, error, and area under the receiver operating characteristic curve ( AUC ) in this analysis, the proposed model generally performs better than compared models. The important variables identified from the analysis are interpretable, they can be used as guidance to select potential students.
Microfluidic Flexible Substrate Integrated Microstrip Antenna Sensor for Sensing of Moisture Content in Lubricating Oil

In this paper, a flexible microstrip patch antenna sensor is proposed for monitoring of the moisture content of lubricating oil. The sensor identifies liquids having different effective dielectric constants by detecting changes in the resonance frequency. The proposed antenna comprises a radiation patch, a metal ground plane, and a PDMS substrate with microchannels. The microchannels are etched on the PDMS substrate. When the relative permittivity of the microfluidic channel is 1.8∼12.5, the operating frequency of the proposed antenna changes from 2.230 to 2.116 GHz, and the amplitude of the reflection coefficient is greater than −26.3 dB. The simulation and measurement results show that the proposed sensor can monitor the lubricating oil with different moisture contents, which can cause frequency separation of at least 20 MHz and achieve a good linear response. Therefore, the proposed sensor has the feasibility of monitoring the quality of lubricating oil.
Fundus Autofluorescence Lifetimes and Spectral Features of Soft Drusen and Hyperpigmentation in Age-Related Macular Degeneration

Purpose To investigate the autofluorescence lifetimes as well as spectral characteristics of soft drusen and retinal hyperpigmentation in age-related macular degeneration (AMD). Methods Forty-three eyes with nonexudative AMD were included in this study. Fluorescence lifetime imaging ophthalmoscopy (FLIO), which detects autofluorescence decay over time in the short (SSC) and long (LSC) wavelength channel, was performed. The mean autofluorescence lifetime (τm) and the spectral ratio (sr) of autofluorescence emission in the SSC and LSC were recorded and analyzed. In total, 2760 soft drusen and 265 hyperpigmented areas were identified from color fundus photographs and spectral domain optical coherence tomography (SD-OCT) images and superimposed onto their respective AF images. τm and sr of these lesions were compared with fundus areas without drusen. For clearly hyperfluorescent drusen, the local differences compared to fundus areas without drusen were determined for lifetimes and sr. Results Hyperpigmentation showed significantly longer τm (SSC: 341 ± 81 vs. 289 ± 70 ps, P < 0.001; LSC: 406 ± 42 vs. 343 ± 42 ps, P < 0.001) and higher sr (0.621 ± 0.077 vs. 0.539 ± 0.083, P < 0.001) compared to fundus areas without hyperpigmentation or drusen. No significant difference in τm was found between soft drusen and fundus areas without drusen. However, the sr was significantly higher in soft drusen (0.555 ± 0.077 vs. 0.539 ± 0.081, P < 0.0005). Hyperfluorescent drusen showed longer τm than surrounding fundus areas without drusen (SSC: 18 ± 42 ps, P = 0.074; LSC: 16 ± 29 ps, P = 0.020). Conclusions FLIO can quantitatively characterize the autofluorescence of the fundus, drusen, and hyperpigmentation in AMD. Translational Relevance The experimental FLIO technique was applied in a clinical investigation. As FLIO yields information on molecular changes in AMD, it might support future diagnostics.
Genetic Parameters for the Piglet Mortality Traits Crushing, Stillbirth and Total Mortality, and their Relation to Birth Weight

The aim of this study was to estimate genetic and phenotypic parameters for the three mortality traits crushing, stillbirth and total mortality in piglets, and their respective correlations with birth weight. Records were available from 11 016 Yorkshire piglets from 1046 first parity litters in a Swedish experimental herd. Each mortality trait was analysed jointly with birth weight, using bivariate models. Both mixed linear models and threshold models were used. The threshold models took environmental and maternal genetic effects into account, whereas the linear models also included a direct genetic effect of the piglet on its birth weight. The estimated heritabilities were low for all mortality traits (0.01-0.15), with the lowest estimate for crushing and the highest for stillbirth. The estimated environmental correlations between the different mortality traits and birth weight were negative. The estimated genetic correlations between crushing and birth weight (both direct and maternal effect) were also negative in both models, indicating that sows with low-weight piglets are more likely to crush piglets. However, the genetic correlations between stillbirth and birth weight (both direct and maternal effect) were positive. These results suggest that stillbirth and crushing are traits with different genetic backgrounds, and that genetically increasing the birth weight of the piglets may result in more stillborn piglets.
Neuroanatomy of the grey seal brain: bringing pinnipeds into the neurobiological study of vocal learning

Comparative animal studies of complex behavioural traits, and their neurobiological underpinnings, can increase our understanding of their evolution, including in humans. Vocal learning, a potential precursor to human speech, is one such trait. Mammalian vocal learning is under-studied: most research has either focused on vocal learning in songbirds or its absence in non-human primates. Here, we focus on a highly promising model species for the neurobiology of vocal learning: grey seals (Halichoerus grypus). We provide a neuroanatomical atlas (based on dissected brain slices and magnetic resonance images), a labelled MRI template, a three-dimensional model with volumetric measurements of brain regions, and histological cortical stainings. Four main features of the grey seal brain stand out: (i) it is relatively big and highly convoluted; (ii) it hosts a relatively large temporal lobe and cerebellum; (iii) the cortex is similar to that of humans in thickness and shows the expected six-layered mammalian structure; (iv) there is expression of FoxP2 present in deeper layers of the cortex; FoxP2 is a gene involved in motor learning, vocal learning, and spoken language. Our results could facilitate future studies targeting the neural and genetic underpinnings of mammalian vocal learning, thus bridging the research gap from songbirds to humans and non-human primates. Our findings are relevant not only to vocal learning research but also to the study of mammalian neurobiology and cognition more in general. This article is part of the theme issue ‘Vocal learning in animals and humans’.
Why Lionesses Copulate with More than One Male

One possible benefit to females in copulating with more than one male is to engender multiple paternity and thereby increase kinship relationships for their offspring. As exemplified in lion social systems, by sequential consortships with numerous males during estrus, females may bear young with greater relatedness within the surviving F1 cohort than would exist if they copulated with only one male. Polygamous or monogamous mating behavior by females will increase offspring relatedness depending on the conditions of offspring survival and the reproductive behavior of other adults; thus females may vary their copulatory behavior according to existing environmental and social circumstances. Obscured paternity, genetic diversity, and improved paternal genetic quality are not mutually exclusive hypotheses and may simultaneously benefit females mating with more than one male.
The Patient Safety Model within Decubitus Ulcer Patients in Hospital: Based on the Organizational Citizenship Behavior and Knowledge Management

Decubitus ulcer event is an indicator of patient safety in nursing care at the clinic, so a method is needed to reduce the incidence of decubitus ulcer in the patient in hospital. The research aims to create a model for increasing patient safety based on Organizational Citizenship Behavior (OCB) and knowledge management on unexpected events (decubitus ulcer) in achieving the target of patient safety program in Hospital, using cross-sectional design. The subjects were 100 nurses who work in the inpatient room of Surabaya Haji Hospital, selected by purposive sampling. Data collection was done by questionnaire, then analyzed using Partial Least Square (PLS). The model of increasing patient safety based on OCB and knowledge management has proven effective in reducing the incidence of decubitus ulcer in the patient ward. This model is recommended to implement in the hospital to enhance the quality of nursing care.
Preparation and evaluation of [125I]troxacitabine: L-nucleoside model of a potential agent for tumor diagnosis and radiotherapy

In this study, the optimization of troxacitabine labeling with iodine-125 and its biological evaluation were described. Troxacitabine was labeled via direct electrophilic substitution using chloramine-T as oxidizing agent. The optimum amounts of reactants were: 50 µg troxacitabine, 75 µg Chloramine-T and ∼19 kBq carrier free Na125I. The labeled troxacitabine was stable for more than 24 h. Results of the in-vivo evaluation revealed that the new tracer, [125I]troxacitabine, tends to localize in tissues with high proliferation rate with preferential accumulation in cancerous tissues. Imaging should be carried at 3 h postinjection. The in vitro cell growth inhibition assay showed that the effect of [125I]troxacitabine was stronger than the effect of cold troxacitabine, which strongly suggested that its cytotoxicity was mainly due to radiotoxicity rather than chemotherapeutic activity. The binding assay revealed that [125I]troxacitabine uptake by the Ehrlich and the ARAC8C cells was high and that it bounded well to DNA. Copyright © 2010 John Wiley & Sons, Ltd.
Effectiveness of Virtual Reality Based Cognitive Rehabilitation on Cognitive Function, Motivation and Depression in Stroke Patients

Background/Objectives: The aim of this study was to investigate the effects of virtual reality cognitive training on cognitive function, rehabilitation motivation, and depression in patients with sub-acute stroke.Method/Statistical Analysis: Total 22 patients with sub-acute stroke were included in our study. All stroke patients were classified either into experimental group (n = 11) or control group (n = 11). The experimental group performed virtual reality cognitive training on each session during 30 min/day, and control group conducted conventional cognitive therapy on each session during 30 min/day. The outcome measures were the LOTCA (Lowenstein Occupational Therapy Cognitive Assessment), VQ (Volitional questionnaire), BDI (Beck Depression Inventory) before and after intervention.Findings: The both groups showed significant improvements in cognitive function before and after intervention (p .05). In comparisons for change score between the two groups, the experimental group showed a significant greater improvements in cognitive function and rehabilitation motivation than control group (p<.05). Improvements/Applications: These findings suggest that virtual reality cognitive training may have a effects of the improvements of cognitive function and rehabilitation motivation than conventional cognitive therapy in sub-acute stroke.
Factors Influencing Internet Game Addiction in Middle School Students

Background/Objectives: The purpose of this study is to analyze the factors affecting internet game addiction in middle school students.Method/Statistical Analysis: The survey was conducted among 304 middle school students in G metropolitan city of Korea. The data were analyzed using frequency and percentage, mean and standard deviation, t-test, ANOVA, and hierarchical regression analysis.Findings: The results for the degree of middle school students’ internet game addiction showed that 67.1% were average users, 23.4% were potential risk users, and 9.5% were high risk users. The variables affecting internet game addiction were found to be anxiety, ego-resilience and gender. These three variables explained 15.9% of the internet game addiction in middle school students.Improvements/Applications: To prevent middle school students from being addicted to internet games, intervention strategies that focus on male students for reduction of anxiety and strengthening of ego-resilience are needed.
Therapeutic potential of inhibiting Bruton's tyrosine kinase, (BTK).

Abstract BTK (Bruton's tyrosine kinase) is a member of the TEC family of tyrosine kinases that plays a central but diverse modulatory role in various cellular processes. The unique role of BTK in a multitude of signaling pathways, its function as a dual regulator of apoptosis and its involvement in a number of developmental processes makes BTK a desirable target for potential anti-cancer, anti-inflammatory and anti-viral agents as well as other treatments. The biochemistry and signaling networks of BTK were well described in numerous detailed reviews written by members of our team and others before us. Therefore in this particular review we are going to concentrate on the possible practical application of previously obtained knowledge to specific diseases and disorders.
Effects of mTOR inhibitor, everolimus, on proliferation, autophagy and temozolomide sensitivity of glioma cells

Purpose: To study the effect of the mTOR inhibitor, everolimus, on glioma cell proliferation, autophagy, and drug sensitivity to temozolomide (TMZ). Methods: Human glioma cell lines were cultured in vitro, and the effects of different concentrations of everolimus on the proliferation of brain glial cells were determined using CCK-8 method. The effect of different concentrations of everolimus on brain glial cell levels of autophagy protein were assayed by western blot method.Results: The results of CCK-8 analysis showed that everolimus inhibited the proliferation of glial cells in a time- and concentration-dependent manner. Western blot results showed that the expression levels of autophagy proteins, LC3-II and LC3-II/I, were gradually and concentration-dependently up-regulated, while p62 protein level was gradually decreased concentration-dependently, when compared with blank control (p < 0.05). Treatment with different concentrations of TMZ alone, and in combination with everolimus for 48 h inhibited the proliferation of brain glial cells in a concentration-dependent manner, but the inhibition due to TMZ-everolimus combination was significantly higher than that of TMZ singletreatment (p < 0.05). After 48 h, the expression level of Beclin-1 increased with the ratio of LC3-II/LC-I in TMZ-everolimus group, while the expression level of p62 decreased, when compared with TMZ alone, or control (p < 0.05). Conclusion: Everolimus significantly inhibits the proliferation of glioma cells and promotes the occurrence of autophagy. Combined use of TMZ and everolimus significantly enhances the sensitivity of TMZ to glioma cells, inhibits cell proliferation, and promotes autophagy better than TMZ alone. Keywords: mTOR inhibitor, Everolimus, Glioma cells, Proliferation, Autophagy
Efficiency of Thermoregulatory Control Elements in Precocial Poultry Embryos

Toexplainallaspectsof theefficiencyof thethermoregulatorysysteminpoultryembryos,theactivityandthedynamicsofdifferent control elements have to be investigated systematically during the prenatal period.The relevant methodology and results, citedinthispaperaremainly fromourowngroupbutarecomparedwithrelatedexperimentsdescribedinthescientificliterature. They may be summarised: Thermoregulatory behaviour is developed early in poultry embryos. Temperature of allantoic fluid (Taf) represents the internal body temperature in the last third of incubation because Taf and Tc are much the same at normal (37.5C) and low incubation temperatures (34.5C) after internal pipping. Fowl embryos show endothermic reactions from day14 and Muscovy duck embryos from day 22. In precocial avian embryos, body core temperature increases in accordance with heat production. In contrast to heat production the efficiency of heat loss is high in precocial avian embryos. Development of physiologicalcontrol systems starts withnon-co-ordinatedandproximate (immediate) non-adaptive reactions. In summary, endothermic reactions occur very early during embryonic development but their efficiency is limited. Due to the van’t Hoff rule, low temperatures decrease the net heat production but the trajectories of endothermy are stimulated and related epigenetic adaptation mechanisms are activated. Using behavioural mechanisms the embryo is protected against super-cooling during the natural incubation process. The heat loss mechanisms are most efficient against heat stress, which may occur for only very short time during incubation, protect the embryo against disturbances caused by hyperthermia.
Analysis of Vertebrate Pest Control. (Cambridge Studies in Applied Ecology and Resource Management.) By Hone Jim. Cambridge: Cambridge University Press (1994), pp. 258, £45.00. ISBN 0-521-41528-4.

not readily available, of'adaptive' agronomic work on the crop in Central Africa in the 1950s and early-1960s, leading up to the world record yield of 9.6 t ha~' (in shell) obtained on 40 hectares in Zimbabwe in 1973-4. This is offered to show what small-scale but professionally sound local initiative and simple field experiments can do to find answers to local problems, free of the misconceived large-scale enterprise, such as the East African Groundnut Scheme, and without the massive resources of an international institute. But it would be good to know how Makulu Red achieves such impressive yields. In the final chapter, on the future, the editor addresses his sub-title. For lack ofreliable projections of future effective demand for groundnut oil and kernels, or of the potential output of this inputdemanding crop in different locations, the conclusions are, inevitably, qualitative expansions of the experience of the past, described in the earlier chapters. The final paragraph, 'A New Physiology', calls for a Green Evolution, based on stable traditional farming systems rather than the imponderables of the Green Revolution and its aftermath. The book adds the record of about twelve years of productive work, and some hundreds of recent references, to its predecessor, the valuable APRES volume of 1982 (Peanut Science and Technology, edited by H. E. Pattee and C. T. Young, Yoakum, Texas: American Peanut Research and Education Society). It includes much more material from outside the United States, including many significant products from the ICRISAT programme. Though its size and detail may startle the beginner, it will be an important reference quarry for more experienced readers.
Influence of Selective Logging on Bird Species Diversity in a Guianan Rain Forest

The composition and structure of the bird com- munity were investigated in French Guiana (northeastern Amazonia) I year and 10 years after selective logging and compared with bird community composition and structure in undisturbed primary forest A point-count method was used in which 937 0.25-ha sample quadrats were censused for 20 minutes each. Whereas logging removed little more than 3 trees/ha, 38% of the forest undergrowth was destroyed and a higher proportion of the canopy was opened or dam- aged. An overall 27-33% decrease of species richness, fre- quency, and abundance occurred after logging with a less marked decline of diversity and evenness indices, a substan- tial increase in the proportion of dominant species, and a 45% difference in species composition, weighed by fre- quency, between logged and undisturbed forest communi- ties. Forty-two percent of the species from the primary forest decreased sharply or disappeared after logging and only 34% increased or remained unchanged. Microhabitat selection was the main correlate of sensitivity to disturbance. Most affected by logging were species associated with the under- story of tall mature stands especially terrestrial species, members of mixed flocks, and solitary sallying insectivores, all of which decreased by 70% to over 90%. Most birds as- sociated with canopy, small gaps, and vine tangles declined by only 10-30%. Small frugivores and species associated with clearings or edges increased. Among other factors, phys-
Allocative Efficiency in Online Auctions: Improving the Performance of Multiple Online Auctions via Seek-and-Protect Agents

Much of the prominent literature describing behavior in eBay‐like marketplaces emphasizes the successful use of “sniping” agents that wait until the last moments of an auction to bid (truthfully) on behalf of a human user. These agents fare well against “naive” agents (typically assumed to be those who bid incrementally on the most profitable open auction) who do not get the chance to respond to the snipe‐bid placed in the final seconds. This reasoning, however, tends to ignore the effect of the poor coordination that occurs as more and more players attempt the sniping agent strategy, thereby raising prices above their minimum possible competitive equilibrium levels. Using proprietary data purchased from eBay, encompassing all bids submitted on four specific product types over a 3‐month period, we analyze the allocative efficiency, price, and bidder surplus using a software agent and compare this to the historical performance. After showing a significant amount of “money left on the table” in the historical record, we proceed to demonstrate how bidders can significantly improve their surplus (i.e., observed profit) by adopting a “seek‐and‐protect” agent. If bidders go further and implement sequential‐auction shading strategies, they can incrementally improve their surplus, but sometimes at the expense of allocative efficiency. Acknowledging that each bidder’s time window of interest is inherently unobservable, we vary the length of bidders’ consumption windows and find similar results.