Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of mathematical models to estimate the thermal conductivity of titanium oxide-water based nanofluid: A review

Heat transfer is a desirable phenomenon in many industries such as in refrigeration, transportation, power generation, cell preservation, incubator, metallurgy and material processing, health services, etc. Different types of fluids like water, oil, ethylene glycol etc are being used as a heat transfer medium. Water is a commonly used as working fluid for transfer of heat. Nanofluids are developed by adding nano sized particle(s) in existing fluid to improve the heat transfer rate. Thermal conductivity of the nanofluid is an important parameter in estimation of heat transfer rate. Different types of mathematical models were developed by various investigators to predict the thermal conductivity of the nanofluids. In this review paper,the theoretical and mathematical model(s) have been compared to predict the thermal conductivity of nanofluids. The experimental data have been collected from literature and compared with Maxwell model, Hamilton and crosser(H-C) model, Maxwell-Garnetts(MG) model, Pak cho model, Timofeeva et al. model, Li and Peterson model, Bhattacharya et al. model respectively in detail. It has been observed that the prediction wih the help of the mathematical models is good when the value of volume fraction was less than 0.01.
Policy-Making in Determining the Mission of Medical Sciences Universities During the COVID-19 Pandemic Using Competitive Advantage and Scientific Strength

Background: The outbreak of 2019 novel coronavirus (2019-nCoV) caused a pandemic in most countries, and how to face the pandemic is a major issue that needs to be addressed worldwide. Objectives: The current study aimed at determining the competitive advantage and scientific strength of medical sciences universities to face this pandemic. Methods: A mixed-methods was employed to conduct the current study from May to April 2020 in three steps: a) identifying the academic departments with the most exposure to this pandemic; b) designing the protocol to calculate the scientific strength and competitive advantage, c) allocating the mission to academic departments. Result: The scientific strength and competitive advantage were calculated for clinical and non-clinical departments in all medical sciences universities. The obtained results indicated that some universities, for instance, Tehran, Shahid Beheshti, Iran, Isfahan, Mazandaran, Shiraz, Kerman, and Mashhad, had the most competitive advantage that would increase their responsibility to face this pandemic. Conclusion: Policy-makers that clearly identify the mission and objectives of their institutions and define the relevant tasks may have better performance based on the capacities and abilities of the medical sciences universities.
Preserving Professional Identities, Behaviors, and Values in Digital Professionalism: A Scoping Review

Background Despite a rapid rise of use of social media in medical disciplines, uncertainty prevails among healthcare professionals for providing medical content on social media. There are also growing concerns about unprofessional behaviors and blurring of professional identities that are undermining digital professionalism. This review tapped the literature to determine the impact of social media on medical professionalism and how can professional identities and values be maintained in digital era. Methods We searched the databases of PubMed, ProQuest, ScienceDirect, Web of Science, and EBSCO host using (professionalism AND (professionalism OR (professional identity) OR (professional behaviors) OR (professional values) OR (professional ethics))) AND ((social media) AND ((social media) OR (social networking sites) OR Twitter OR facebook)) AND (health professionals). The research questions were based on participants (health professionals), concept (professionalism), and context (social media, digital world). We screened initial yield of titles using pre-determined inclusion and exclusion criteria and selected a group of articles for qualitative analysis. We used the Biblioshiny® software package for generation of popular concepts as clustered keywords. Results Our search yielded 44 articles with four leading themes; marked rise in use of social media by healthcare professionals and students, negative impact of social media on digital professionalism, blurring of medical professional values, behaviors, and identity in digital era, limited evidence for teaching and assessing digital professionalism. A high occurrence of violation of patient privacy and professional integrity and cyberbullying is reported. There are no existing guidelines and policies for digital professionalism that can safeguard healthcare professionals, students and patients. Conclusion Our scoping review reports a rapid rise of unprofessional behaviors on social media among healthcare professionals. The boundaries between personal and professional practices are mystified in digital professionalism. These findings call for potential educational ramifications to resurrect professional virtues, behaviors and identities of healthcare professionals and students.
Effect of powdered extract of peppermint (Mentha piperita) on adult cowpea bruchid (Callosobruchus maculatus) mortality during storage in Jos - Plateau

The over dependence and continues use of synthetic insecticides to control storage pests have been associated with several demerits. This study was conducted to evaluate the insecticidal effect of peppermint (Mentha piperita) leaf powder on Callosobruchus maculatus. The peppermint plant was sourced locally and the C. maculatus were cultured to obtain the adult Bruchids. The peppermint was washed, dried under ambient temperature and pulverized. Complete Randomized Design was adopted for this trial with three replications of six treatment dosages of 2.5, 5.0, 7.5, 10.0, 12.5 and 0.0 g respectively of the plant material. The trial lasted for four weeks. High Bruchids mortality was observed after treatment with Mentha piperita leaf powder extract. Phytochemical screening of the test plant revealed presence of flavonoids, tannins, saponins, carbohydrates and cardiac glycosides. Descriptive statistic and analysis of variance (ANOVA) were used to analyze the data. Means (p≤0.05) were separated using Duncan Multiple Range Test (DMRT). Dosage rate and mean mortality values at the various doses were statistically significant after 48, 72 and 96 hours. The mortality could be attributed to high presence flavonoid in the Mentha piperita leaf powder. The results suggest that the leaf of peppermint has insecticidal property against adult C. maculatus. However, further trials are required to investigate effective dosage rates for other stored grains and to isolate and characterize the active flavonoids contained in the plant.
Growth performance and serum chemistry of earthworm ( Hyperiodrilus euryaulos ) cultured in different animal dung media

The experiment was conducted to determine the growth performance and serum biochemistry of earthworms cultured in different animal dung manures in a Completely Randomized Design experiment that lasted for 10weeks, using 315 earthworms. Five treatments, T1, T2, T3, T4 and T5 respectively containing garden soil alone (control) and four animals (poultry, rabbit, pig and goat) manure mixed with garden soil in the ratio of 1: 3 were put into rectangular plastic containers (30 x 42.5x27) cm. The containers were perforated at the base to enable excess water to drain out. 1kg of diet each was formulated with maize offal, wheat offal and PKC in a proportion of 0.35kg, 0.30kg and 0.35kg respectively and were mixed thoroughly with each medium. 63 fry earthworms of similar length were introduced into each treatment that was replicated thrice.1 litre of water was sprinkled to each treatment once every two days. At the end of the experiment, the control group (T1) was observed to have the least values for all the parameters evaluated. The results indicated that the absence of animal dung did not support growth of the earthworms. Poultry dung- cultured earthworms had the highest gain in weight (15.31g) followed by the goat dung-cultured earthworms (13.41g). The animal dungs improved the final average length with the highest value observed in the group cultured in the poultry dung. There were significant differences (P<0.05) in all the serum chemistry parameters evaluated. The control was observed to have 0.53g/dl total protein, 1.80mg/dl creatinine, 10.03mg/dl urea, 13.34mg/dl cholesterol and 6.12g/dl glucose. Group T3 (rabbit dung medium) earthworms had the highest (P<0.05) urea (58.30mg/dl) and cholesterol (106.15g/dl). Keywords: Earthworm, animal manure media
Mutual Coupling Reduction in MIMO Microstrip Patch Array Using TM10 and TM02 Modes

A novel decoupling method is investigated for the multi-input multi-output (MIMO) microstrip patch antenna (MPA) array. This method makes use of the TM<sub>10</sub> and TM<sub>02</sub> modes, which are simultaneously excited in the rectangular MPA. It is found that by adjusting the frequencies of the two modes, their <inline-formula> <tex-math notation="LaTeX">$E$ </tex-math></inline-formula>-fields coupled to the adjacent passive MPA can counteract each other to generate a specific null-field region. When the feeding position of the passive MPA is located in the null-field region, the MPA cannot be excited effectively, and hence an extremely low mutual coupling is obtained without requiring any extra decoupling structure. To validate the feasibility of this decoupling method, an E- and an H-plane-coupled <inline-formula> <tex-math notation="LaTeX">$1\times 2$ </tex-math></inline-formula> MIMO MPA arrays are respectively simulated, fabricated, and measured. The isolation of the E-plane-coupled array is enhanced from ~11 to 57 dB, while that of the H-plane-coupled array is improved from ~18 to 51 dB.
Validation of a lateral flow immunoassay for the rapid determination of aflatoxins in maize by solvent free extraction

The analytical performances of a lateral flow immunoassay (AFLA-V AQUA™, Vicam a Waters Business) for the determination of aflatoxins in maize were evaluated according to Commission Regulation (EU) No. 519/2014. This case study showed how a critical evaluation of validation results can provide a quite informative picture of kit performances for its use for different purposes. The validation study, performed at aflatoxin B1 levels encompassing EU maximum permitted levels (up to 8 μg kg−1), provided information on the method precision profile, cut off values, and false suspect and false negative rates. The total precision expressed as relative standard deviation varied from 14 to 29% for contaminated samples. Cut off values calculated considering 2 μg kg−1 or 4 μg kg−1 as the screening target concentration were 1.24 and 2.18 μg kg−1, respectively, whereas the resultant false suspect rate for blanks was 42% and 8%, respectively. The false negative rate for samples containing the analyte at higher concentrations was found to be lower than 1%. Analysis of naturally contaminated maize samples performed by the lateral flow immunoassay and the AOAC official method revealed a good correlation (parameters of the linear regression: r = 0.97, slope = 0.96) between the obtained results. A satisfactory agreement between reference values and test results was also obtained in the analysis of reference materials. Finally, a QC protocol based on guidelines suggested in the EU regulation was designed to verify kit performances over time and in new production lots.
Successes of and Lessons From the First Joint eHealth Program of the Dutch University Hospitals: Evaluation Study

Background A total of 8 Dutch university hospitals are at the forefront of contributing meaningfully to a future-proof health care system. To stimulate nationwide collaboration and knowledge-sharing on the topic of evidence-based eHealth, the Dutch university hospitals joined forces from 2016 to 2019 with the first Citrien Fund (CF) program eHealth; 29 eHealth projects with various subjects and themes were selected, supported, and evaluated. To determine the accomplishment of the 10 deliverables for the CF program eHealth and to contribute to the theory and practice of formative evaluation of eHealth in general, a comprehensive evaluation was deemed essential. Objective The first aim of this study is to evaluate whether the 10 deliverables of the CF program eHealth were accomplished. The second aim is to evaluate the progress of the 29 eHealth projects to determine the barriers to and facilitators of the development of the CF program eHealth projects. Methods To achieve the first aim of this study, an evaluation study was carried out using an adapted version of the Commonwealth Scientific and Industrial Research Organization framework. A mixed methods study, consisting of a 2-part questionnaire and semistructured interviews, was conducted to analyze the second aim of the study. Results The 10 deliverables of the CF program eHealth were successfully achieved. The program yielded 22 tangible eHealth solutions, and significant knowledge on the development and use of eHealth solutions. We have learned that the patient is enthusiastic about accessing and downloading their own medical data but the physicians are more cautious. It was not always possible to implement the Dutch set of standards for interoperability, owing to a lack of information technology (IT) capacities. In addition, more attention needed to be paid to patients with low eHealth skills, and education in such cases is important. The eHealth projects’ progress aspects such as planning, IT services, and legal played an important role in the success of the 29 projects. The in-depth interviews illustrated that a novel eHealth solution should fulfill a need, that partners already having the knowledge and means to accelerate development should be involved, that clear communication with IT developers and other stakeholders is crucial, and that having a dedicated project leader with sufficient time is of utmost importance for the success of a project. Conclusions The 8 Dutch university hospitals were able to collaborate successfully and stimulate through a bottom-up approach, nationwide eHealth development and knowledge-sharing. In total, 22 tangible eHealth solutions were developed, and significant eHealth knowledge about their development and use was shared. The eHealth projects’ progress aspects such as planning, IT services, and legal played an important role in the successful progress of the projects and should therefore be closely monitored when developing novel eHealth solutions. International Registered Report Identifier (IRRID) RR2-10.1016/j.ceh. 2020.12. 002
Redox sorption of Ce(III)/Ce(IV) on potassium bismuthate

Abstract Potassium bismuthate rods was synthesized in a form of elongated rods in non-aqueous methanol medium. The material morphology and structure were investigated using energy dispersive spectroscopy, scanning electron microscopy, and X-ray diffraction. The effects of annealing temperature on the material morphology and structure were investigated. Sorption kinetic study and ionic selectivity was investigated using batch technique. The sorption of Ce3+ on potassium bismuthate was found to be Ce3+ cation’s ionic state selective process. Results showed that the chemical sorption of Ce3+ ionic state in KBiO3 follows the reduction of Bi5+ to Bi2− as a result of the formation of cerium bismuthide (Ce23+Bi2−O2). $({\rm{Ce}}_2^{3 + }{\rm{B}}{{\rm{i}}^{2 - }}{{\rm{O}}_2}). $ The suggested chemo-sorption mechanism includes equilibration parallel processes of the released K+ to form K2CeO2 and Bi2O3 that consumes the original material. The sorption kinetic has two different orders depending on contact time, isotherms fits adequately with Freundlich model and Dubinin-Radushkevich model. The material is considered a candidate for lanthanides radioactivity removal from aqueous media for radioactive waste disposal processes.
Preparation and properties of lambda-cyhalothrin/polyurethane drug-loaded nanoemulsions

Conventional pesticide formulations are usually used inefficiently due to loss and poor foliage adhesion, which results in a large waste of resources and serious environmental pollution. In order to prolong the foliar pesticide retention and release time, using biodegradable castor-oil based polyurethane (CO-PU) as a carrier, lambda-cyhalothrin/CO-PU (LC/CO-PU) nanoemulsions were prepared via an in situ soap-free phase inverse emulsification technique and their properties were investigated. Results showed that the LC/CO-PU nanoemulsions had a good water dispersion and the drug-loaded nanoparticles (NPs) were uniform spheres with diameters of less than 80 nm. The LC physically encapsulated in the CO-PU carrier was in an amorphous state, and the maximum of the LC loading capacity was around 40 wt% with a high encapsulation efficiency of more than 85%. Compared with commercial LC formulations, the LC/CO-PU nanoemulsions exhibited a sustained and controlled-release property, which could be adjusted by the LC loading capacity and temperature. The foliage adhesion of the LC/CO-PU nanoemulsions was much better than that of the commercial LC formulations due to the low surface tension, larger chain mobility of the LC/CO-PU systems as well as hydrogen-bond interactions between the polyurethane and foliar surface, which was of great significance to achieve the efficient use of pesticides.
A three dimensional, macroporous hybrid of a polyoxometalate and reduced graphene oxide with enhanced catalytic activity for stable and sensitive nonenzymatic detection of nitrite

In this study, a polyoxometalate (POM) and graphene oxide (GO) were hydrothermally treated to form a novel three-dimensional (3D) macroporous hybrid 3D-mp-rGO–POM for nitrite sensing. Scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy and electrochemical methods were used to characterize the hybrid. The 3D porous rGO not only obviously enhances the conductivity and largely increases the active surface area, but also greatly facilitates the mass transport and efficiently decreases the leaching of the POM from the modified electrode. The synergistic interaction between the POM and 3D porous rGO endows 3D-mp-rGO–POM with a highly stable and efficient electrocatalytic activity towards the oxidation of nitrite. A nonenzymatic sensor for nitrite based on this hybrid shows two linear response ranges of 0.5 μM to 221 μM and 0.221 mM to 15.221 mM, with a detection limit of 0.2 μM (S/N = 3), which displays higher sensitivity, higher stability, a wider linear range and a lower detection limit than sensors based on POMs or 2D-rGO supported POM hybrids. Interference from H2O2 was effectively avoided by monitoring the oxidation current of nitrite instead of its reduction current. The 3D-mp-rGO–POM hybrid with facile preparation, high stability and good catalytic activity may have promising applications in catalysis, sensors, and so on.
Enhancing Prediction of Drug Indication and Side Effects through Named Entity Recognition and Jointly Learning of Syntactic Structures of Sentences

: The drug discovery process needs long time and cost to discover proper drug for treating the patients effectively. The unintended effects of drugs and the beneficial impact of drugs must be recognized because they may inflict severe patient’s injuries due to unforeseen acts of the produced candidate drugs. One of the effective techniques is text mining it can find the hidden relation between genes, diseases and drugs from the huge volume of data. Predict drug Indications and Side effects using TOpic modeling and Natural language processing (PISTON) was a text mining method which used to find the association between drug-disease and drug-side effects. Natural Language Processing (NLP) is used to identify words which relate association among drugs and genes from the sentences which are collected from literatures where words represent drugs and genes co-occurred. The relation between drugs and genes is represented through building drug-topic probability matrix by topic modeling. From the drug-topic probability matrix, the drugs for phenotypes can be identified by training a classifier for high-rank topics of drugs. It also predicted the association between drug and side effects. However, expressive power of named entities and their potential for enhancing the quality of discovered topics has not received much attention in PISTON. So in this paper, an Improved PISTON (IPISTON) is proposed which enhance the quality of discovered topics through named entity recognition system and inducing the syntactic structure from unannotated sentences. Initially, the sentences from the collected literature data are extracted and a dependency graph is constructed using NLP. After that, a Gene Regulation Score (GRS) of each sentence is
Immigration Control and Management System Using Blockchain

In this paper, we propose a system using Blockchain technology to create a decentralized, secure, and scalable migration records of individuals. We try to utilize Ethereum Blockchain and Proof of Work as the consensus algorithm. We attempt to mitigate the process of illegal immigration by keeping immutable and unique record of state of migration as well as personal information of an individual to check their authenticity. The proposed system will not only help to check for unlawful immigration but will also allow to check if an individual has successfully reached the intended destination.
The Sealing Ability of Biodentine and MTA as Root Sealer in the Management of Open Apices of Permanent Teeth

Introduction: The root seal should provide an impermeable seal in different environments to prevent the egress of bacteria from the canal into the peri-radicular tissues and the ingress of periradicular fluid into the canal. Aim: The aim of this pilot study is to assess, by means of an in-vitro investigation using micro-CT and an optical microscope, the quality of the root apical seal achieved with either MTA® or Biodentine™ when placed in a moist environment that simulates the various clinical periapical wet environments. Materials and methods: A total of thirty-six freshly extracted human teeth were randomly allocated to 2 groups: MTA® and Biodentine™. Each group was subdivided into 3 subgroups containing 6 teeth each. Materials insertion and packing occurred while the teeth were immersed in the environmental fluids (Dry, SBF and Acid), following the standard apical divergence and instrumentation. Then 3 mm of the materials were scanned and analysed using the micro-CT scan (MCT) and an optical microscope was used to investigate the integrity of the root-apex at the surface interface seal. Results: The mean porosity percentage of MTA® and Biodentine™ in the 3 different environments; Dry: 24.08% and 45.42%, SBF: 38.28% and 56.03%, Acid: 46.78% and 50.43% subsequently. There was not any statistically significant difference between the three environments at a P-value=0.16. Conclusion: Moisture and acidic environment do not have a statistically significant effect on the sealing ability of both materials MTA® and Biodentine™. But they generate morphological changes in both materials.