Miracle-dz/UniFAR-FTUs huggingface dataset:
Affinity Propagation SMOTE approach for Imbalanced dataset used in Predicting Student at Risk of Low Performance

Imbalanced datasets affect the performance of classification algorithms in predicting student performance. There are several techniques in combatting class imbalance and one of the most known is the Synthetic Minority Oversampling Technique (SMOTE). It is an oversampling technique that generates synthetic data along the line of the minority instances and its neighbors. However, it has a drawback on the distribution and generation of noisy samples which is the main reason of its many variations. In the cluster approaches for SMOTE, Affinity Propagation (AP) SMOTE is one of them. This approach uses affinity propagation to automatically produce clusters and cluster exemplars used to select the clusters to be oversampled. This way, the sparsity and generation of noisy samples will be avoided. The data used for the study is the student performance of freshman students of Davao Oriental State College of Science and Technology (DOSCST) as well as their enrolment data. The dataset comprises 10 features and 2112 instances, the imbalance ratio between majority and minority is 17.85. SMOTE and AP SMOTE are applied to the imbalanced dataset. The output is used in the J48 and Naïve Bayes classifiers to predict the student at risk of getting low performance in their freshman years in the college. The classifiers' performance is evaluated using f-measure, g-mean, and Areas Under the Curve (AUC). Results showed that AP SMOTE outperforms the original SMOTE with a percentage lead of . 60%, . 88%, 1.2% using the J48 classifier. The percentage lead for Naïve Bayes is 3.2%, 6.58%, 3.30%, respectively.
COMPETENCE PROFILE OF AN IDEAL LEADER IN A SELLING CENTER: AN EXPLORATORY ANALYSIS

Multidisciplinary sales project teams, in the literature also referred to as selling centers, receive increasing attention in both practice and scientific community. In case, selling centers are formed, the sales associate must assume leadership responsibility for the subject matter experts involved. The challenge, however, lies in the sales associate ́s lack of formal authority towards these subject matter experts from other departments. This study examined the research question of which competencies sales associates should acquire in order to be accepted as a leader by selling center participants despite their lack of formal authority. For this purpose, twelve selling center participants were interviewed during semi-structured face-to-face interview sessions. The interviewees described the competencies of an ideal leader from a selling center. All interviews were evaluated by applying qualitative content analysis. In addition, a frequency analysis was carried out to evaluate the number of mentions per competence. A total of six competencies were identified which generate acceptance of leadership in selling centers. The conclusion section of this paper deals with a critical appraisal as well as with future research potential.
Comparing the differentiation potential of Brachyury+ mesodermal cells generated from 3-D and 2-D culture systems

Mesodermal populations can be generated in vitro from mouse embryonic stem cells (mESCs) using three-dimensional (3-D) aggregates called embryoid bodies or two-dimensional (2-D) monolayer culture systems. Here, we investigated whether Brachyury-expressing mesodermal cells generated using 3-D or 2-D culture systems are equivalent, or instead, have different properties. Using a Brachyury-GFP/E2-Crimson reporter mESC line, we isolated Brachyury-GFP+ mesoderm cells using flow-activated cell sorting and compared their gene expression profiles and ex vivo differentiation patterns. Quantitative RT-PCR analysis showed significant up-regulation of Cdx2, Foxf1 and Hoxb1 in the Brachyury-GFP+ cells isolated from the 3-D system compared with those isolated from the 2-D system. Furthermore, using an ex vivo mouse kidney rudiment assay, we found that irrespective of their source, Brachyury-GFP+ cells failed to integrate into developing nephrons, which are derived from the intermediate mesoderm. However, Brachyury-GFP+ cells isolated under 3-D conditions appeared to differentiate into endothelial-like cells within the kidney rudiments, whereas the Brachyury-GFP+ isolated from the 2-D conditions only did so to a limited degree. The high expression of Foxf1 in the 3-D Brachyury-GFP+ cells combined with their tendency to differentiate into endothelial-like cells suggests these mesodermal cells may represent lateral plate mesoderm.
Millennials’ Adoption of Radio Station Apps: The Roles of Functionality, Technology, Media, and Brand Factors

To adapt to Millennials’ mobile-centric lifestyle, the U.S. radio broadcasters are integrating mobile apps into their services. Through a national survey, this study explores Millennial radio users’ functionality preferences regarding station-specific apps from radio stations, and factors affecting their adoption intentions and actual adoption behaviors of such apps. The potential contribution of these apps to brand loyalty is also examined. Three types of factors are investigated: technology, brand, and media factors. The results suggest that all of them affect adoption and loyalty building. As such, this study contributes to the literature of technology acceptance, mobile marketing, and media management.
Returning fire to the land: celebrating traditional knowledge and fire

Indigenous peoples’ detailed traditional knowledge about fire, although superficially referenced in various writings, has not for the most part been analyzed in detail or simulated by resource managers, wildlife biologists, and ecologists. Instead, scientists have developed the principles and theories of fire ecology, fire behavior and effects models, and concepts of conservation, wildlife management and ecosystem management largely independent of native examples. (Lewis and Anderson 2002, p. 4)
Research on Key Technologies of Connecting Various Distributed Power Sources to Smart Grid

In order to solve the impact of distributed power supply (DG) access on the fault location and voltage quality of distribution network, the paper combines the characteristics of random fluctuating DG grid connection, and studies a way to use SVG dynamic reactive power compensation to maintain randomness The control strategy of the voltage stability of the fluctuating distributed power supply node, based on the detailed analysis of the determination method of the SVG capacity, a new optimization strategy for the distribution system containing different types of DG is proposed, that is, using the static reactive power generator VG and output-adjustable DG’s own reactive power capacity for fine-tuning control, the use of traditional static compensation device comprehensive adjustment optimization strategy. At the same time, the economic optimization operation model of the distributed energy system is analysed to verify the feasibility of the optimization strategy.
Transgenic corn decreased total and key storage and lipid transport protein levels in honey bee hemolymph while seed treatment with imidacloprid reduced lipophorin levels

Pollen substitutes are currently widely used in apiculture because of a lack of natural forage and an increasing need for bees for pollination services. A major concern in the confection of bee diets is whether specific ingredients, such as GMO grain, or contaminants such as pesticides that are applied to crops, negatively impact bee health. We measured hemolymph protein levels and the lifespan of honey bees fed on diets containing non-hybrid (IAC-Airan), hybrid (AG 7088) or transgenic (AG 8088YG) maize, the seeds of which had been treated with fipronil, imidacloprid or left untreated. Corn from these plantings was harvested, dried and finely ground, and then used for the preparation of corn-based diets. Groups of 100 newly emerged bees were placed in cages, where the diets were offered ad libitum. Honey bee lifespan was similar for all the corn diets, though shorter than for bees fed beebread and longer than for bees fed only honey. Total protein in the hemolymph of bees fed with transgenic maize was 15% lower than in bees fed on non-hybrid maize; lipophorin and vitellogenin, were more reduced, by over 30%. Irrespective of corn variety, imidacloprid resulted in over 25% lower levels of lipophorin compared with the control. Lower storage and transport protein levels would compromise the ability of the bees to rear brood and develop an adequate immune response to pathogen challenge. Consequently, transgenic maize, as well as any maize produced from seed treated with imidacloprid should not be included as ingredients in honey bee diets.
Effect of Light Levels on Growth, Survival and Skin Colour Enhancement of Marine Angelfish, Apolemichthys xanthurus (Bennett, 1833)

In the present study, effect of various levels light on growth performances and skin colour enhancement of marine smoke angelfish Apolemichthys xanthurus was investigated. The fishes were reared in tanks with three different levels (250 500, 750 1000, and 1500 2000 lux) and control (without additional light) for 120 days and the growth, survival and carotenoid content were investigated. The results of the growth performances studies suggested that the fishes reared under low light level (250-500 lux) exhibited higher weight gain (73.90±0.06), specific growth rate (0.616±0.01), and survival rate (90%) and feed conversion ratio (1.00±0.01). The colour enhancement studies suggested that the carotenoid content of the fishes reared under low, medium, high and control was about 6.84±0.03, 6.19±0.04, 5.48±0.06 and 3.57±0.04 mg g respectively. Thus, the result obtained from the present study indicates that the low light level (250-500 lux) was more suitable for better growth and skin colour enhancement of Apolemichthys xanthurus which could be recommended for the successive production of this high priced species.
Dragging the chain: Quantifying continued losses of seagrasses from boat moorings

Globally, seagrasses and other estuarine habitats are under threat from a range of human disturbances, including boating-related activities. The fixed, block-and-chain swing moorings used to secure boats in many countries can create visible scars in seagrass meadows and remove other benthic organisms. Losses of seagrasses in two estuaries in New South Wales (NSW), Australia, were quantified using aerial imagery and used to estimate estuarine habitat damage across the remainder of the state. The rate of mooring scar development was approximated and factors influencing the size of mooring scars were identified. Individually mapped mooring scars in meadows of the endangered Posidonia australis ranged from 55 to 706 m2, and were generally larger than those in the more opportunistic seagrass Zostera muelleri subsp. capricorni (22–342 m2). Scar size in both species of seagrass increased significantly with depth and boat length. The rate of increase in the size of mooring scars amongst P. australis was roughly linear over 4.8 years, averaging 6.3 m2/month up to a maximum of 16.7 m2/month for one 16-m yacht. Across all of NSW, it was estimated that currently leased moorings were causing losses of 129 884 m2 of P. australis and 93 940 m2 of Z. capricorni, and disturbing 2 790 907 m2 of non-vegetated soft sediments. NSW seagrass loss estimates relate only to damage from current moorings and could be underestimated by ~41% for P. australis if estuaries contain many old scars that remain after the relocation of moorings (as has occurred in Lake Macquarie). Mandating the use of moorings that do not rely on a chain dragging on the sea bed would greatly reduce future physical damage of benthic habitats and enable some recovery from legacy effects.
Trends and drivers of Macoma balthica L. dynamics in Kandalaksha Bay, the White Sea

Long-term population dynamics of marine invertebrates can be shaped by environmental conditions as well as biotic factors, including predation, diseases, interspecific or intraspecific competition. Towards the northern edge of species ranges the role of biotic interactions gradually decreases while the impact of climate oscillations becomes more important. This study examined the long-term changes in abundance, individual growth rates and shell shape characteristics of Macoma balthica, one of the dominant species in White Sea soft-bottom intertidal communities. To test the role of predators in changes in clam abundance, we examined the number of moonsnails Amauropsis islandica. Macoma balthica exhibited spatially synchronous population dynamics at six sites in Kandalaksha Bay, where densities of clams varied between 140 and 8500 ind. m−2 during the 21-year period of observations. Statistical modelling using generalized additive models (GAM) shows that a combination of mild winter and warm summer led to an increase in M. balthica density the following year. Predation by A. islandica had no impact on changes in M. balthica density. Growth rates of M. balthica were higher during a cool decade, but clams that lived in a warmer period were characterized by more globose shells. Our results suggest that the climate oscillations can be regarded as the key factor causing the shift in abundance of M. balthica in the White Sea during the last two decades via recruitment and survival.
Simultaneous removal of crystal violet and methyl green in water samples by functionalised SBA-15

ABSTRACT In this paper, we have synthesised SBA-S4, as a mesoporous silica-based sorbent, via template method by functionalization of SBA-15 using the tetra-sulphide group. The prepared structure was applied to remove Crystal Violet (CV) and Methyl Green (MG) dyes with 100% efficiency. The obtained adsorbent, after and before the modification, was characterised by several techniques to explore textural properties, functional groups, and morphology. Design-Expert was applied to find the optimal values of adsorbent dosage, the solution pH, and the concentration of each dye as experimental variables. It was found that the isotherm model and kinetic rate order fitted Langmuir and pseudo-second-order, respectively. The maximum adsorption capacity of the studied sorbent was 67.6 and 39.4 mg g−1 for CV and MG, respectively. The results also showed that SBA-S4 had high efficiency for eliminating the studied analytes in tap water, well water, and river water as real matrix samples. Reusability and regeneration studies indicated that the studied sorbent can be applied more than 5 cycles with a negligible loss of efficiency.
Identifying molecular classifiers and therapeutic targets for poor-prognosis cancers

Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer with very limited treatment options. We have previously shown that combined inhibition of EGFR and ROCK1 results in cell cycle arrest and death in TNBC cell lines. Here we demonstrate that this combination treatment causes autophagy, which is accompanied by rpS6 inhibition, leading to the demise of a subset of TNBC cells. Our data also suggest that Rab11 is a potential biomarker that can be used to predict response to EGFRi+ROCKi treatment Introduction Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer. It takes its name from the fact that these tumors lack the three receptors: estrogen (ER), progesterone (PR), and HER2 [1]. Although it is possible to cure TNBC by surgery and systemic therapy, treatment-resistant recurrences are common [2]. Despite extensive research, due to the absence of hormone receptors and the absence of a common genetic vulnerability, there has been no established targeted inhibitor treatment against TNBC yet [3]. Triple negative (TN) tumors can be sub-classified in several groups highlighting the heterogeneity of this group [4]. We previously carried out in vivo and in
Chlamydia trachomatis in subfertile women undergoing uterine instrumentation

Women who undergo uterine instrumentation are considered at risk for pelvic infections by Chlamydia trachomatis, which may derive either from ascending endocervical infections or from reactivation of micro-organisms persisting in the genital tract after previous chlamydia infections. Women presenting at fertility clinics frequently undergo uterine instrumentation (e.g. hysterosalpingography and laparoscopy with hydrotubation). Studies in subfertile women using DNA amplification techniques have shown that the prevalence of endocervical chlamydia infections is low (1.8%). In contrast, in 30–60% of subfertile women chlamydia IgG antibodies can be found in serum, indicating previous chlamydia infections. It has been demonstrated that, several years after chlamydia infections, viable micro-organisms may still be present in the upper genital tract. Therefore, subfertile women with chlamydia antibodies should be considered at risk for reactivation of persistent chlamydia infections after uterine instrumentation, even after exclusion of endocervical chlamydia infections. Moreover, in subfertile women without chlamydia antibodies, the presence of viable micro-organisms in the genital tract cannot be excluded. As a consequence, prophylactic antibiotics before uterine instrumentation should be considered in all subfertile women, instead of endocervical screening for C. trachomatis and treatment of positive cases only.
Regulatory T-cell: Regulator of Host Defense in Infection

Based on diverse activities and production of several cytokines, T lymphocytes and T helper cells are divided into Th1, Th2, Th17 and regulatory T-cell (T regs) subsets based on diverse activities and production of several cytokines. Infectious agents can escape from host by modulation of immune responses as effector T-cells and Tregs. Thus, regulatory T-cells play a critical role in suppression of immune responses to infectious agents such as viruses, bacteria, parasites and fungi and as well as preserving immune homeostasis. However, regulatory T-cell responses can advantageous for the body by minimizing the tissue-damaging effects. The following subsets of regulatory T-cells have been recognized: natural regulatory Tcells, Th3, Tr1, CD8+ Treg, natural killer like Treg (NKTreg) cells. Among various markers of Treg cells, Forkhead family transcription factor (FOXP3) as an intracellular protein is used for discrimination between activated T reg cells and activated T-cells. FOXP3 has a central role in production, thymocyte differentiation and function of regulatory Tcells. Several mechanisms have been indicated in regulation of T reg cells. As, the suppression of T-cells via regulatory T-cells is either mediated by Cell-cell contact and Immunosuppressive cytokines (TGF-Beta, IL-10) mediated.
Antimicrobial Activity of Iodophor and Chlorhexidine in Surgical Preparation of Skin

An effective pre surgical Preparation is important step in preventing surgical wound contamination and post operative infection. Preparing a 100% sterile surgical environment is one of the biggest challenges of surgery. Since skin is the most common source of pathogen they make the skin preparation at the time of procedure critical. The most common skin preparation agents are iodophors and chlorhexidine. The aqueous based iodophors are, such as povidone iodine is one of the few products that can be safely used on mucous membrane. Iodophor and chlorhexidine are quick sustained and durable with broader spectrum anti microbial activity. These agents are ideal for longer open surgeries. There is a need for comparison of antimicrobial activity of iodophor and chlorhexidine. In surgical preparation of the skin. In this study we used iodophor and chlorhexidine to check their anti microbial activity in surgical preparation of skin. A square of area 10 sq cm was drawn on the surface of the skin on arm and divided into upper half and lower half.2 sterilised cotton swabs were taken and they were moistened with saline water. First swab was taken before applying the disinfectant and the second swab was taken 2 mins after applying the disinfectant. Original Research Article Jeyashree and Muralidharan; JPRI, 32(19): 67-74, 2020; Article no.JPRI. 59826 68 Both swabs were spread in the TSA agar. Total bacterial count was counted in the before and after swab. Iodine was used as disinfectant in 5 people and chlorhexidine was used as disinfectant in 5 people. Iodophor had a better activity against the micro organisms than that of the chlorhexidine.
Crosstalk Analysis and Suppression of GaN Driving Circuit in Bridge Converter

Enhancement mode Gallium-Nitride power transistors (GaN HEMT) have emerged as promising devices for high frequency, high efficiency and high power density switch m ode power supplies. However, when GaN device works in high frequency, the dv/dt and di/dt slopes are increased due to stray inductances and parasitic capacitances, which leads to oscillations and overshoots in gate-source voltage and affect the stability of driving circuits. Especially in the phase-bridge circuit, the crosstalk between the upper and lower switch seriously limits the performance of the device. In order to solve the short circuit problem of bridge arms generated by oscillation and crosstalk, an improved design of gate driving circuit was proposed, which could eliminate the parasitic oscillation and voltage spikes, suppress crosstalk and higher harmonics effectively. In addition, A double pulse test prototype is built and the simulation and experimental results verify the effectiveness of this driving circuit.
Phytochemical screening and In vivo anti-ulcer activity of Ethanolicextract of Heliotropium indicum L

The phytochemical compounds and anti-ulcer activity of leaves and root extracts of Heliotropium indicum Linn. The preliminary phytochemical screening was performed by in vitro method and anti-ulcer activity was conducted by in vivo method. The phytochemical analysis revealed the presence of alkaloids, carbohydrates and glycosides, phytosterols, fixed oils and fats, phenolic compounds and tannins, flavonoids, terpenoids, proteins and amino acids. The ethanolic extract of Heliotropium indicum leaf and root was evaluated for its anti-ulcer activity against pylorous ligation induced gastric ulcer in rats. It was found that significant reduction in gastric volume, free acidity, total acidity and ulcer index. The present study concluded that the H. indicum plant extract have various bioactive compounds and anti-ulcer activity in animal models against the drug induced gastric ulcer.