Miracle-dz/UniFAR-FTUs huggingface dataset:
HIGH-THROUGHPUT DEEP LEARNING ALGORITHM FOR DIAGNOSIS AND DEFECTS CLASSIFICATION OF WATERPROOFING MEMBRANES

The work is devoted to the development of a high-performance deep learning algorithm related to the diagnosis and classification of defects of water-repellent membranes. The mechanism of constructing visual models of the membrane surface is discussed. This allows to get the representative training data set. The proposed methodology consists in the sequent transformations of pixel-image intensities to find defected fragments on the membrane's surface. The computational algorithm is based on the architecture of convolution neural networks. To assess its effectiveness, the "confidence of confidence" criterion is proposed. The presented computations show that the methodology can be successfully applied in material sciences, for example, to study the properties of building materials, or in forensic science when examining the causes of construction catastrophes.
Implementación del aprendizaje experiencial en la universidad, sus beneficios en el alumnado y el rol docente

Ante la demanda social del cambio educativo, las universidades están replanteando su enfoque y modificando sus estrategias educativas. Una de las estrategias que están incluyendo es el aprendizaje experiencial. Mediante investigación documental de sitios universitarios en Internet y artículos universitarios, se indagó qué entienden las universidades por aprendizaje experiencial y qué están haciendo al respecto. Se concluye que las universidades están incorporando el aprendizaje experiencial a sus modelos educativos mediante proyectos elaborados en el mundo real. Como resultado de ello, el alumnado ha aplicado el conocimiento disciplinar en problemáticas de la comunidad y ha desarrollado competencias importantes para el s. XXI como creatividad, comunicación, colaboración y pensamiento crítico. El rol docente se ha modificado y es fundamental para el éxito de las innovaciones educativas.
Physiological Basis of Salinity Tolerance in Foxtail Millet

A pot experiment was conducted to study the effects of salt stress on physiological parameters associated to salinity tolerance in foxtail millet plant in the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during March to May, 2018. Four foxtail millet genotypes namely i) BD-881 ii) BD-897 iii) BD-878 and iv) BARI kaon-1 were grown and each pot was irrigated using three levels of saline water viz. control (tap water), 60 mM saline water and 120 mM saline water. Results indicated that genotypic variability was profound in salinity tolerance in foxtail millet. The leaves of BD-878 maintained higher water content, higher accumulation of proline, and lower accumulation of malondialdehyde (MDA) as well as less reduction of chlorophyll compared to other genotypes studied. BD-878 also showed relatively higher salinity stress tolerance, while BD-897 was susceptible in relation to yield. Higher salinity tolerance in BD-878 was associated with higher relative leaf water and chlorophylls with accumulation of higher amount of proline and lower accumulation of malondialdehyde content.
Highly Active Catalysts for the Dehydration of Isopropanol

Due to the high costs and low selectivity associated with the production of propylene, new routes for its synthesis are being sought. Dehydration has been widely investigated in this field, but, thus far, no study has produced efficient results for isopropanol. Vanadium-zirconia catalysts have been shown to be effective for the dehydration of ethanol. Therefore, we investigated the activity of such catalysts in the dehydration of isopropanol. The catalysts were synthetized on a SBA-15 base, supplemented with zirconia or combined zirconia and vanadium. Tests were conducted in a continuous flow reactor at 150–300 °C. Samples were analyzed using a gas chromatograph. The most active catalyst showed 96% conversion with 100% selectivity to propylene. XRD, SEM and Raman spectroscopy analyses revealed that as the vanadium content increases, the pore size of the catalyst decreases and both isopropanol conversion and propylene selectivity are reduced. Thus, without the addition of vanadium, the Zr-SBA-15 catalyst appears to be suitable for the dehydration of isopropanol to propylene.
REGENERATION OF Agave marmorata Roezl PLANTS, BY SOMATIC EMBRIOGENESIS

Background. Agave marmorata Roezl is a monocot plant of the Asparagaceae family, which is mainly used in the elaboration of the alcoholic drink called mezcal. This species is propagated by seeds or stolons (hijuelos), but its reproduction is slow because its maturation stage can last up to 35 years until flowreing. Therefore, efficient and alternative propagation methods should be used to ensure the permanence of the resource. Biotechnology, in particular plant tissue culture techniques, represents a viable alternative for the propagation of this species, however, until now, there are no previous reports on the spread of A. marmorata Roezl, via somatic embryogenesis. Objective. Evaluate various treatments to regenerate seedlings of this species through somatic embryogenesis. Methodology. Callus induction was obtained from mature seeds established in MS (Murashige and Skoog, 1962) at 25%, supplemented with vitamins L2 (Phillips and Collins, 1979), 5 mg L -1 of 2,4-dichlorophenoxyacetic (2 , 4-D), 3 mg L -1 of 6-benzyladenine (BA), 60 g L -1 of sucrose, 8 g L -1 of agar and adjusted to a pH of 5.7 ± 0.1. These calluses were sectioned into small portions weighing approximately 0.25 g and were incubated in an MS medium at 50% of their concentration with 30 g L -1 of sucrose, 8 g L -1 of agar and subjected to eight concentrations of two plant growth regulators (RCV): BA (0.0, 2.0, 6.0 and 10 mg L -1 ) and 2,4-D (0.0 and 5 mg L -1 ), alone or combined, giving a total of eight treatments. Those explants that responded to the embryogenic callus formation were subcultured to 50% MS medium, 30 g L -1 of sucrose and gelled with 8 g L -1 agar where two RCV were evaluated independently (0.1 mg L -1 of 2,4-D or 3 mg L -1 of AG 3 ) and two culture conditions: 16 h light and 8 h dark and complete darkness, giving a total of 24 treatments. The variables evaluated in this work were: percentage of callus induction, percentage of embryogenic structures, number and growth of regenerated seedlings of A. marmorata Roezl at 255 ddic. Results. The best response was observed 120 days after starting the culture (ddic) in treatment five with 0.1 mg L -1 of 2,4-D under light conditions where the pre-treatment was with 10 mg L -1 of BA, obtaining 19.4 somatic embryos per explant. Maturation of somatic embryos in 50% MS medium was achieved with 30 g L -1 of sucrose and 8 g L -1 of agar, without RCV. The 100% of the regenerated seedlings survived and grew under greenhouse conditions. Implications. The results of this study contribute to a better understanding of the importance of a pretreatment with high concentrations of cytokinin (BA) and culture conditions, for the regeneration of Agave marmorata Roezl plants, via somatic embryogenesis. This can assist in the initiation of germplasm genetic improvement and in vitro conservation programs. Conclusions. The factors evaluated here were important in the induction and expression of embryogenic structures of this species, making possible the regeneration of seedlings of A. marmorata Roezl, from the formation of somatic embryos.
Teaching About Partnerships Between Patients and the Team: Exploring Student Perceptions

Health profession educators are responding to shifting approaches where patients are increasingly recognized as partners in an interprofessional care process. To foster competencies related to partnerships between patients and the team, educators have advanced the role of patient partners; however, an appreciation of resulting student learning is in its early stages. First-year students from 9 programs interacted with patient partners and participated in a Reader’s Theater that explored partnerships with patients in an interprofessional team. Students completed reflective assignments; an inductive thematic analysis explored student learning. The following 4 overarching themes were recognized: developing insights through patient perspective, promoting partnerships with patients, recognizing attitudes that promote therapeutic relationships, and advocating for the patient to be a team member. Accompanying subthemes provide enhancement of each of the identified themes. Students discussed the effect of poor collaboration, identified attitudes that promote collaboration, and expressed the value of advocacy for patient partnership. An enriched appreciation of student learning will guide educator engagement of patient partners in both health professional and interprofessional curricula.
Kajian Kebijakan dan Arah Riset Pasca-Covid-19

Riset tentang Covid-19 beserta dampak dan penanganannya sudah berjalan sejak pertama kali wabah ini merebak. Tinjauan kebijakan dalam berbagai disiplin memerlukan pendalaman dan yang terpenting kajian lintas-disiplin sehingga dikotomi kebijakan dapat diminimalisasi. Tulisan sederhana ini berupaya mengidentifikasi ruang dan potensi kajian yang relevan dengan penanganan dan kebiajakn pasca-Covid-19 dalam berbagai disiplin dan perspektif. Analisis yang dipergunakan adalah tinjauan literatur terstruktur dengan diawali tinjauan sekilas terhadap tren yang berkembang secara daring. Fitur Google Trends dimanfaatkan untuk mengidentifikasi tren sedangkan situs pencarian ilmiah Google Scholars dipergunakan untuk mengetahui frekuensi karya ilmiah yang diunggah di dunia maya. Piranti lunak VosViewer digunakan untuk mengidentifikasi kluster riset beserta densitasnya. Celah riset masih terbuka lebar dan mengundang para pelaku riset untuk segera berkontribusi menyampaikan gagasan ilmiah beserta solusi konstruktif.
Estimating costs and benefits of stroke management: A population-based simulation model

Abstract The paper demonstrates how a system dynamics approach can support strategic planning of health care services and can in particular help to balance cost-effectiveness considerations with budget impact considerations when assessing a comprehensive package of stroke care interventions in Singapore. A population-level system dynamics model is used to investigate 12 intervention scenarios based on six stroke interventions (a public information campaign, thrombolysis, endovascular therapy, acute stroke unit (ASU), out-of-hospital rehabilitation, and secondary prevention). Primary outcomes included cumulative discounted costs and quality-adjusted life years (QALYs) gained, as well as cumulative net monetary benefit by 2030. All intervention scenarios result in an increase in net monetary benefit by 2030; much of these gains were realized through improved post-acute care. Findings highlight the importance of coordination of care, and affirms the economic value of current stroke interventions.
Clinico-pathological and radiological correlation of sino-nasal masses in a tertiary care center

The nose is the prominent part of the face with substantial aesthetic and functional significance. The sino nasal cavities occupy a relatively small anatomical space, however it can be the site of origin for one of the most histologically diverse group of tumours. A sino nasal mass can have various differential diagnosis. They may be inflammatory, congenital, neoplastic (benign and malignant), traumatic in nature. Classically benign neoplasm expands and remodel bone and aggressive malignancies destroy and invade adjacent tissue with illdefined margin. Various pathologies ranging from nonneoplastic lesion to malignant tumor may present as simple nasal mass. It is not possible to determine clinically what pathology lies underneath. Therefore, nasal endoscopy, radiology and histopathology are employed collectively to help us reach the diagnosis.
First report of yellow sugarcane aphid Sipha flava Forbes (Homoptera: Aphididae) in Tanzania

The yellow sugarcane aphid (YSA), Sipha flava Forbes (Homoptera: Aphididae) is an inva-sive insect pest of many graminaceous plants which include cultivated crops, like sorghum, sugarcane, rice, maize and several species within non-cultivated genera e.g. Digitaria , Pani-cum , Paspalum , and Pennisetum . A survey conducted in the Kagera region indicated an infestation by YSA in nine sugarcane varieties grown. This pest causes damage to leaves leading to yellow, purple and red discoloration. This is the first report of YSA infestation in the Tanzanian sugarcane industry. Efforts to develop control measures are still in progress.
Lotus and the Self-Representation of Afro-Asian Writers as the Vanguard of Modernity

This essay has two aims. The first is to show that the editors of Lotus: Afro-Asian Writings and some of the writers who contributed to it (especially Ismail Ezzedine, Anar Rzayev, Tawfick Zeyad, Abdel Aziz El-Ahwani, Joseph Ki-Zerbo, Alex La Guma, Adonis, Salah Dehni, Luis Bernardo Honwana, Ghassan Kanafany, and Tozaburo Ono) attempted to reconceive of nationalism in a way that would make international solidarity constitutive of the new national projects. It is argued that this is quite different from thinking of the contributors to Lotus as abandoning nationalism in favor of a supranationalist project. The second aim is to show that at least some of the contributors to Lotus thought of themselves as being the vanguard of modernity, and not as the creators of “alternative modernities”. This essay shows that some of the aforementioned contributors to Lotus implicitly drew on standpoint epistemology in order to argue that, due to their struggles against colonialism, racial discrimination, etc., they had a privileged epistemic vantage point from which to criticize modernity in its European form for not being modern enough.
A Modeling Approach for Handling Qualities and Controls Safety Analysis of Electric Air Taxi Vehicles

The combination of modern advances in electric propulsion, ﬂy-by-wire controls, autonomy, and increasing demand for short range air taxi operations, is currently producing an outburst of vehicle designs more diverse than ever before. Advanced software tools are needed to support the rapid and safe introduction of any design into the airspace, including the safety of the deployed ﬂight control system and vehicle handling qualities. This paper presents a methodology for building air taxi vehicle models with distributed electric propulsion for use in analyzing ﬂight control system safety at the conceptual design level. The approach builds on existing software tools capable of outputting aeromechanics-based linear perturbation models for Vertical Take-oﬀ and Landing vehicles with multiple rotors. Rotor torque inputs are then converted into equivalent voltage control inputs, and the linear state and input dynamics matrices are modiﬁed to include electric motor dynamics with common parameters for direct-current electric motors. The linear perturbation dynamics are then stitched across multiple operating points into a quasi-Linear Parameter Varying model that covers the full ﬂight envelope. A Model Predictive Controller is developed for use with the full envelope model, and a tradeoﬀ analysis between handling quality and motor requirements is demonstrated using a six passenger NASA air taxi reference design.
A Supplier Selection Model Emphasizing the Project Risk Management in Drug
Production in Pharmaceutical Industry

Risk management is considered to be one of the main phases of project management and one of the eight main areas of the “project management body of knowledge”. The complexities involved in the drug production projects on the one hand, and the need for risk assessment and management in such projects on the other hand, make this issue completely clear. According to the risk mitigation strategies in project management and using the academic professors and experts in the field of drug production and pharmaceutical projects, the present study aimed to provide a checklist for selecting supplier in the drug production projects. This was done using the main eight and 30 secondary indicators related to the top supplier selection and four main and nine secondary indicators related to influencing environmental risks. Finally, after reviewing the statistical results obtained from the questionnaires and utilizing the TOPSIS technique, seven main indicators including “quality, flexibility, delivery, technology, information and communication systems, cost and experience” along with 24 secondary indicators were obtained relating to the top supplier selection. Also, the delivery factors group was identified as the most important group based on the Friedman test results.
Investigating the ways prior experience informs the research approaches of returning and direct-pathway students in engineering PhD programs

The purpose of this paper is to explore the ways engineering doctoral students draw on prior experiences to inform their doctoral research. This study includes the experiences of “returners” – those who have worked as practitioners for five or more years before entering a PhD program – who have distinct experiences from “direct-pathway students,” which may inform how they engage in doctoral research. This study also explores the traits that distinguish varying levels of sophistication in the ways PhD students think about the research process and how prior experience may contribute. ,This study draws on interview data from 52 returning and direct-pathway engineering doctoral students. A thematic analysis of this interview data highlights the primary ways participants’ prior professional, academic and life experiences inform their doctoral research. In addition, the authors conducted an iterative analysis process to sort participants’ responses about their management of a hypothetical research scenario into emergent categories of research thinking sophistication to understand what characterizes varying levels of sophistication in research thinking and explore how experience may contribute. ,Participants identified past experiences as shaping their research, related to how they identify a research problem, considering what needs to and can be done to address the problem, identifying an appropriate research approach, managing unexpected challenges, responding to critical feedback, determining their comfort taking risks and using intuition to lead a project. ,Outcomes of this research can inform how graduate education supports students throughout their degree by identifying key experiences that may contribute to students’ research approaches.
DEGRADATION OF 4-CHLOROPHENOL USING WATER FALLING FILM DBD REACTOR

In this paper we present experimental results of degradation of 4-chlorphenol using falling film dielectric barrier discharge (DBD) reactor. Degradation of 100 ml/L wa- ter solution of 4-chlorphenol was examined using catalysts in four different set of condi- tions: DBD, DBD/H2O2, DBD/TiO2 i DBD/Fe 2+ . Kinetics of the 4-chlorophenol degrada- tion in several successive passes trough the reactor was monitored using HPLC. Changes in concentrations of carbon that originate from products of degradations like acetic, formic and oxalic acids and changes in concentrations of carbon calculated on basis of degraded 4-chlorophenole are presented.
Aerosol-jet-printed graphene electrochemical histamine sensors for food safety monitoring

Carbon nanomaterials such as graphene exhibit unique material properties including high electrical conductivity, surface area, and biocompatibility that have the potential to significantly improve the performance of electrochemical sensors. Since in-field electrochemical sensors are typically disposable, they require materials that are amenable to low-cost, high-throughput, and scalable manufacturing. Conventional graphene devices based on low-yield chemical vapor deposition techniques are too expensive for such applications, while low-cost alternatives such as screen and inkjet printing do not possess sufficient control over electrode geometry to achieve favorable electrochemical sensor performance. In this work, aerosol jet printing (AJP) is used to create high-resolution (∼40 μm line width) interdigitated electrodes (IDEs) on flexible substrates, which are then converted into histamine sensors by covalently linking monoclonal antibodies to oxygen moieties created on the graphene surface through a CO2 thermal annealing process. The resulting electrochemical sensors exhibit a wide histamine sensing range of 6.25–200 ppm (56.25 μM–1.8 mM) and a low detection limit of 3.41 ppm (30.7 μM) within actual tuna broth samples. These sensor metrics are significant since histamine levels over 50 ppm in fish induce adverse health effects including severe allergic reactions (e.g. Scombroid food poisoning). Beyond the histamine case study presented here, the AJP and functionalization process can likely be generalized to a diverse range of sensing applications including environmental toxin detection, foodborne pathogen detection, wearable health monitoring, and health diagnostics.
Chemical and Temperature Sensors Based on Functionalized Reduced Graphene Oxide

In this work, we investigated the functionalization of reduced graphene oxide (rGO) with 2-(dodecen-1-yl) succinic anhydride (TPSA) to increase the rGO effective interactions with organic solvents both in liquid and vapor phases. Thermogravimetric analysis, STEM, XPS, FTIR-ATR, and Raman spectroscopy confirmed the effective functionalization of rGO with about the 30 wt% of grafted TPSA without affecting the structural characteristics of graphene but successfully enhancing its dispersibility in the selected solvent except for the apolar hexane. Solid TPSA-rGO dispersions displayed a reproducible semiconducting (activated) electrical transport with decreased resistance when heated from 20 °C to 60 °C and with a negative temperature coefficient of 10−3 K−1, i.e., comparable in absolute value with temperature coefficient in metals. It is worth noting that the same solid dispersions showed electrical resistance variation upon exposure to vapors with a detection limit in the order of 10 ppm and sensitivity α of about 10−4 ppm−1.
When technology goes unnoticed: teacher beliefs and assumptions about technology use in three 9th grade English classrooms

ABSTRACT This manuscript explores teacher beliefs about technology in three 9th grade English classrooms. Examining these teachers’ pedagogical uses of technology and their discussion of technology with their students, this study highlights how teacher beliefs can render technology invisible. Teachers demonstrated consistent assumptions that technology would drive student interest. Further, only recent, futuristic innovations “counted” as technology to the teachers; word processing, presentation, and web-based tools driving today’s business world did not “count” as technology in teachers’ pedagogical decisions. Ultimately, this study highlights differences in contemporary educational research on teacher beliefs, teacher education, and how schools are currently treating technology.