Miracle-dz/UniFAR-FTUs huggingface dataset:
Biological nutrient removal in bench-scale membrane bioreactor and full-scale sequencing batch reactor under various configurations and conditions

Advantages such as excellent effluent quality, flexibility in operation, smaller plant size, and low biomass production give MBR a superior edge over conventional biological treatment processes. MBR can be operated at hydraulic retention times (HRTs) as low as 1 hour and solids residence times (SRTs) as high as 70 100 days making the MBR a flexible system over conventional systems. Mixed liquor suspended solids (MLSS) or biomass concentrations of 35,000 mg/L can be maintained in the aeration tank resulting in high organic matter biodegradation rates for short HRTs of 1 3 hours. With stricter nutrient discharge requirements, the question is whether the many advantages of MBR can be harnessed for biological nutrient removal by using various anaerobic, anoxic, and oxic manipulations. An important issue is whether the MBR operating at high SRTs or low HRTs may hinder biological phosphorus removal. Very few studies focused on the impact of SRTs on biological phosphorus removal. Longer SRTs are expected to hinder phosphorus removal since less mixed liquor is wasted in the process. Models on biological nutrient removal are needed to be calibrated for long SRTs and short HRTs. More important information is emerging and biological phosphorus removal is dependent on competition between glycogen accumulating organisms (GAOs) and phosphate accumulating organisms (PAOs) for poly-hydoxy-butyrates (PHBs) under anaerobic conditions. When the minimum pH in the anaerobic tank was higher than 7.5, the PHB uptake reached the maximum. Carbon-to-phosphorus (C/P) ratio was demonstrated to be a factor in biological phosphorus uptake such that for C/P ratios < 32, phosphorus removal efficiency is directly proportional to the C/P ratio. For C/P ratio greater than 32, phosphorus removal efficiency may be maintained at over 90%, and effluent phosphorus concentration may be less than 0.5 mg/L in a
Making a case for Cultural Historical Activity Theory: Examples of CHAT in practice

This paper argues that Cultural Historical Activity Theory (CHAT) provides a practical framework for theory-based research into Technology Enhanced Learning (TEL). Far from being inaccessible, CHAT provides researchers with the concepts, language and tools to create meaningful and manageable data sets that allow insights into complex social situations such as education. Within the context of a pre-university English language program at a Federal institution in the United Arab Emirates (UAE), the paper describes two recent examples of the author’s research into laptop-mediated English language classrooms using CHAT as the theoretical framework. The paper then goes on to describe a theory-based intervention currently in progress that has grown out of the two examples described. This paper aims to demonstrate that theory and practicality need not be separate. CHAT can be used to guide and design research into not only innovation and best practice in TEL but also the actual day-today realities of technology usage in real classroom settings, bringing much-needed criticality to the field. The paper concludes by arguing that CHAT can also provide a framework to drive theory-based interventions via the Change Laboratory. Through CHAT, findings from theory-based research need not remain at a conceptual level but can actually be used to create concrete solutions to problems and actual improved educational practice and policy. https://doi.org/ 10.21428/8c225f6e.c4feefa5 Citation Miles, R. (2020). Making a case for Cultural Historical Activity Theory: Examples of CHAT in practice. Studies in Technology Enhanced Learning, 1(1), 65-80. Rob Miles Higher Colleges of Technology, Sharjah, United Arab Emirates Making a case for Cultural Historical Activity Theory: Examples of CHAT in practice Cover image StockSnap via Pixabay. Publication history Received: 02 December 2019. Revised: 04 June 2020. Accepted: 05 June 2020. Published: 10 June 2020.
Hyperspectral Superpixel-Wise Glioblastoma Tumor Detection in Histological Samples

The combination of hyperspectral imaging (HSI) and digital pathology may yield more accurate diagnosis. In this work, we propose the use of superpixels in HS images for combining regions of pixels that can be classified according to their spectral information to classify glioblastoma (GB) brain tumors in histologic slides. The superpixels are generated by a modified simple linear iterative clustering (SLIC) method to accommodate HS images. This work employs a dataset of H&E (Hematoxylin and Eosin) stained histology slides from 13 patients with GB and over 426,000 superpixels. A linear support vector machine (SVM) classifier was performed on independent training, validation, and testing datasets. The results of this investigation show that the proposed method can detect GB brain tumors from non-tumor samples with average sensitivity and specificity of 87% and 81%, respectively. The overall accuracy of this method is 83%. The study demonstrates that hyperspectral digital pathology can be useful for detecting GB brain tumors by exploiting spectral information alone on a superpixel level.
Device closure of patent ductus arteriosus: analysis of cases in a Bangladeshi centre

Background: Transcatheter closure of Patent ductus arteriosus (PDA) has become the first-choice therapy for closure in patients of any age group. Authors reviewed the outcome of device closure in all age groups starting from neonate to adult. Methods: From December 2014 to December 2019, 440 cases underwent transcatheter closure in a catheterization laboratory of a tertiary level cardiac hospital. Selection criteria were isolated PDA or PDA with associated conditions which can be managed in the same setting by an intervention. Exclusion criteria were proven Eisenmenger syndrome. A retrospective review of outcome and complications were recorded from computerized data records. Results: Age of the patient varied from 10 days to 65 years. The median age was 3 years. Most of the patients were female (63%), weight varied from 1.8 kg to 75 kg. the median weight was 7.5 kg. Isolated PDA cases were 74.77 %. Among syndromes, congenital rubella syndrome was common (7.5%), followed by Down Syndrome (6.36%). The narrowest PDA diameter varied for 1.8 mm 14 mm with a median of 5 mm. Among duct occluders, 8x6 mm CeraTM was the commonest one used in the study population. Complete occlusion was observed in 99.55% of cases. Conclusions: Transcatheter closure of PDA is considered safe and efficacious in all age groups. It is the gold standard now and replaced surgical option in most of the places.
Sequence and phylogenetic analysis of the mitochondrial genome for the Poyang Lake, Misgurnus anguillicaudatus (natural diploid loach)

Misgurnus anguillicaudatus is a highly valued, aquaculture-relevant food fish in East Asian countries. In this study, the complete mitochondrial genome of Poyang loach was obtained by PCR. The genome is 16,646 bp in length, including 2 ribosomal RNA genes. 13 protein-coding genes, 22 transfer RNA genes, and a non-coding control region, the gene composition and order of the species were similar to most reported from other vertebrates. The phylogenetic tree showed that Misgurnus family got together for one branch, which includes Poyang M. anguillicaudatus, and the other loaches had their own branches.
Security-Based Differences in Touch Behavior and Its Relational Benefits

Affectionate touch is crucial to the development of attachment security in infancy, yet little is known about how attachment and touch are related in adulthood. For adults high in anxiety, touch provision can maintain proximity, and received touch can signal reassurance of a partner’s affections that relatively anxious people desperately desire. Adults high in avoidance likely view touch as a threat to independence, should be less inclined to provide touch, and may perceive received touch as intrusive. In two studies, we demonstrated that attachment anxiety was associated with positive feelings about touch but unrelated to daily touch provision. However, the benefits associated with daily received touch were amplified among people higher in anxiety. Conversely, attachment avoidance was associated with negative feelings about touch, and reductions in daily touch provision, but did not moderate the benefits associated with received touch.
Residential mobility and the geography of low-income households

In contrast to the traditional image of suburban communities as stable and secure enclaves surrounding a more volatile urban core, scholars have noted considerable increases in suburban poverty over the past several decades. Using data from the Panel Study of Income Dynamics (PSID) from 1999 to 2015 and a seven-category neighbourhood typology, this analysis seeks to better understand the growing economic distress of suburban areas in two stages: first by examining the degree to which low-income residents have left urban communities for suburban neighbourhoods; and second by identifying the types of low-income households that have made urban-to-suburban moves. Results show that although low-income households rapidly suburbanised during the study period, higher-income households left urban areas for suburban neighbourhoods at nearly the same rate. This finding suggests that while the overall number of economically disadvantaged residents in the suburbs has grown, population flows have had only a modest impact on the income composition of suburban neighbourhoods. Results also highlight important differences between low-income households that suburbanised during the study period and those that remained in urban communities. In particular, urban-to-suburban movers were more likely to be white, had more household resources and lived in origin neighbourhoods with fewer urban characteristics than the origin neighbourhoods of those who relocated within central-city areas.
From Industry 4.0 to Agriculture 4.0: Current Status, Enabling Technologies, and Research Challenges

The three previous industrial revolutions profoundly transformed agriculture industry from indigenous farming to mechanized farming and recent precision agriculture. Industrial farming paradigm greatly improves productivity, but a number of challenges have gradually emerged, which have exacerbated in recent years. Industry 4.0 is expected to reshape the agriculture industry once again and promote the fourth agricultural revolution. In this article, first, we review the current status of industrial agriculture along with lessons learned from industrialized agricultural production patterns, industrialized agricultural production processes, and the industrialized agri-food supply chain. Furthermore, five emerging technologies, namely the Internet of Things, robotics, artificial intelligence, big data analytics, and blockchain, toward Agriculture 4.0 are discussed. Specifically, we focus on the key applications of these emerging technologies in the agricultural sector and corresponding research challenges. This article aims to open up new research opportunities for readers, particularly industrial practitioners.
Sustainable processing of cotton fabrics with plant-based biomaterials Sapindus mukorossi and Acacia concinna for health-care applications

Abstract Fossils-derived textile dyes, additives and fibers have eventually found their way into the human food chain in the form of microfibers and microplastics. The clothing being second skin is exposed to textile dyes and additives that are cytotoxic, carcinogenic, genotoxic and mutagenic causing DNA damage. Thus, the European Chemicals Agency (ECHA) and the U.S. Environment Protection Agency (EPA) encourage to develop and utilize plant-based sustainable bio-colours and bio-additives for textile processing. The research experiments with ancient herbal biomaterials Sapindus mukorossi (Areetha nut) and Acacia concinna (Shikakai) and establishes them as a potentially safe and eco-friendly source of saponins for processing cotton fabrics. Powders extracted from the herbs, and their treated fabrics were characterized by Time of Flight Secondary Ion Mass Spectrometry (ToF SIMs) that confirmed the presence of the bio-surfactants and healing bio-active components in herbs and its treated cotton fabrics. They impart functional antimicrobial, anti-aging, anti-inflammatory and antioxidant properties to textile fabrics. The functional phytochemicals saponins were identified as, Oleanolic acid, Diosgenin, Soyasaponin, Sarsasapogenin and Ginsenosides. Eventually, the bio-material engineering of the herbs for functionality in textiles was established. For future study, detailed histology based in vitro and situ clinical studies is suggested for their potential application into medicinal textiles.
Methanol at the Edge of the Galaxy: New Observations to Constrain the Galactic Habitable Zone

The Galactic Habitable Zone (GHZ) is a region believed hospitable for life. To further constrain the GHZ, observations have been conducted of the J = 2 → 1 transitions of methanol (CH3OH) at 97 GHz, toward 20 molecular clouds located in the outer Galaxy (R GC = 12.9–23.5 kpc), using the 12 m telescope of the Arizona Radio Observatory. Methanol was detected in 19 out of 20 observed clouds, including sources as far as R GC = 23.5 kpc. Identification was secured by the measurement of multiple asymmetry and torsional components in the J = 2 → 1 transition, which were resolved in the narrow line profiles observed (ΔV 1/2 ∼ 1–3 km s−1). From a radiative transfer analysis, column densities for these clouds of N tot = 0.1–1.5 × 1013 cm−2 were derived, corresponding to fractional abundances, relative to H2, of f (CH3OH) ∼ 0.2–4.9 × 10−9. The analysis also indicates that these clouds are cold (T K ∼ 10–25 K) and dense (n(H2) ∼ 106 cm−3), as found from previous H2CO observations. The methanol abundances in the outer Galaxy are comparable to those observed in colder molecular clouds in the solar neighborhood. The abundance of CH3OH therefore does not appear to decrease significantly with distances from the Galactic Center, even at R GC ∼ 20–23 kpc. Furthermore, the production of methanol is apparently not affected by the decline in metallicity with galactocentric distance. These observations suggest that organic chemistry is prevalent in the outer Galaxy, and methanol and other organic molecules may serve to assess the GHZ.
Use of Acceleration Sensors in Archery

Archery is a quasi-static sport. Nevertheless, it requires maximum concentration, as well as precision from the archer. Previous research used combinations of several sensors, video analysis and electromyography to analyse the motion sequence and to identify parameters leading to a worse score. Therefore, the aim of this study is to verify if solely an acceleration sensor on the archer’s hand, without complex data processing, could be used to set up a feedback system. For testing, six participants with a three dimensional acceleration sensor on each hand shot indoors at a vertical triple target. The parameters analysed were the duration of the movement, the range of motion and the coefficient of variation. The results indicate that the analysis of the coefficient of variation shows no correlation with the score reached, whereas the analysis of the duration and the range of motion does.
Kritik terhadap Penggunaan IQ dalam Diagnosis Kesulitan Belajar Spesifik

Kesulitan belajar spesifik sering didefinisikan sebagai pencapaian rendah yang tidak terduga. Berdasarkan konsep mengenai pencapaian rendah yang tidak terduga, model kesenjangan digunakan dalam upaya mendiagnosis kesulitan belajar spesifik. Menurut model kesenjangan, diagnosis kesulitan belajar spesifik dapat ditegakkan setelah ditemukan adanya perbedaan antara IQ dan prestasi. Namun, dalam beberapa tahun terakhir, para peneliti mempertanyakan validitas model kesenjangan dalam mendiagnosis SLD. Beberapa penelitian menyimpulkan bahwa penggunaan IQ dalam mendiagnosis SLD tidak diperlukan. Jadi kriteria diagnostik SLD dalam beberapa pedoman internasional direvisi. Salah satu manual diagnostik yang direvisi adalah Manual Diagnostik dan Statistik Gangguan Mental (DSM). Kriteria dan diagnosis tentang kesulitan belajar spesifik telah berubah, di mana model kesenjangan tidak digunakan. Makalah ini berupaya menjelaskan berbagai argumen yang mematahkan konsep model kesenjangan, sehingga penggunaan tes kecerdasan tidak lagi diperlukan dalam menegakkan diagnosis kesulitan belajar spesifik.
Impact of Physics Parameterizations on High-Resolution Air Quality Simulations over the Paris Region

The accurate simulation of meteorological conditions, especially within the planetary boundary layer (PBL), is of major importance for air quality modeling. In the present work, we have used the Weather Research and Forecast (WRF) model coupled with the chemistry transport model (CTM) CHIMERE to understand the impact of physics parameterizations on air quality simulation during a short-term pollution episode on the Paris region. A lower first model layer with a 4 m surface layer could better reproduce the transport and diffusion of pollutants in a real urban environment. Three canopy models could better reproduce a 2 m temperature (T2) in the daytime but present a positive bias from 1 to 5 °C during the nighttime; the multi-urban canopy scheme “building effect parameterization” (BEP) underestimates the 10 m windspeed (W10) around 1.2 m s−1 for the whole episode, indicating the city cluster plays an important role in the diffusion rate in urban areas. For the simulation of pollutant concentrations, large differences were found between three canopy schemes, but with an overall overestimation during the pollution episode, especially for NO2 simulation, the average mean biases of NO2 prediction during the pollution episode were 40.9, 62.2, and 29.7 µg m−3 for the Bulk, urban canopy model (UCM), and BEP schemes, respectively. Meanwhile, the vertical profile of the diffusion coefficients and pollutants indicated an important impact of the canopy model on the vertical diffusion. The PBL scheme sensitivity tests displayed an underestimation of the height of the PBL when compared with observations issued from the Lidar. The YonSei University scheme YSU and Boulac PBL schemes improved the PBL prediction compared with the Mellor–Yamada–Janjic (MYJ) scheme. All the sensitivity tests, except the Boulac–BEP, could not fairly reproduce the PBL height during the pollution episode. The Boulac–BEP scheme had significantly better performances than the other schemes for the simulation of both the PBL height and pollutants, especially for the NO2 and PM2.5 (particulate matter 2.5 micrometers or less in diameter) simulations. The mean bias of the NO2, PM2.5, and PM10 (particulate matter 10 micrometers or less in diameter) prediction were −5.1, 1.2, and −8.6 µg m−3, respectively, indicating that both the canopy schemes and PBL schemes have a critical effect on air quality prediction in the urban region.
Moisture sorption/desorption of collagen

Moisture sorption/desorption of two physical forms of collagen (hide powder and leather) was studied. Despite the fact that the testing of sorption/desorption behavior is time consuming, the application of a Dynamic Vapor Sorption analyzer enabled us to characterize the sorption/desorption behavior of materials in a relatively short time. Differences in sorption and desorption can be related to the accessibility and internal tortuosity of the materials. BET and GAB models were used to analyze variations in monolayer sorption capacity (internal sorption surface) of different forms of collagen (hide powder and leather). Variations in the energy constants related to primary and secondary sorption were also considered. Given that tests in desorption were performed, the BET and GAB models were also fitted to desorption and the differences observed in the parameters were analyzed. A model of sorption-desorption for porous materials was devised to account for the differences between sorption and desorption.RESUMENAbsorcion/desabsorcion de humedad en dos formas fisicas de colageno (piel pulverizada y cuero) se estudiaron. Aun el hecho que probando comportamientos de absorcion/desabsorcion lleva tiempo, la aplicacion de un Analizador Dinamico de Absorcion de Vapor [de agua] nos permitio caracterizar el comportamiento de absorcion/desabsorcion de materiales en relativamente poco tiempo. Diferencias en absorcion y desabsorcion se relacionan con la accesibilidad y tortuosidad interna de los materiales. Modelos BET y GAB fueron utilizados para analizar variaciones en la capacidad de absorcion de una capa monomolecular (superficie interna de absorcion) en diferentes formas de colageno (piel pulverizada y cuero). Variaciones en las constantes energeticas relacionadas con las absorciones primaria y secundaria tambien fueron consideradas. Dado que las pruebas en desabsorcion fueron ejecutadas, los modelos BET y GAB fueron ajustados a la desabsorcion y las diferencias observadas en los parametros fueron tambien analizadas. Un modelo de absorcion-desabsorcion para materiales porosos fue desarrollado para tomar en cuenta las diferencias entre absorcion y desabsorcion.
Learning with environments: Developing an ecological psychology inspired relational pedagogy

ABSTRACT A disconnect from environments has largely dominated educational discourse and policy. Attention to place and environment in education has gained momentum recently through several relational theories. Application of these theories in education notes the materiality and relationality of pedagogy, though often without specificity as to what the pedagogy is – how it is enacted and what guides such pedagogy. For pedagogical direction in enlivening learning with environments, this paper looks to the potential of ecological psychology theories of affordances and developing specificity via perception and action with environments. To illustrate such, we offer reflections on the pedagogical gap from a teacher education project that attunes preservice teachers to the potential for learning by engaging with spaces produced for children by artists. We then look closely to the pedagogical practices of an artist working with children in a primary school maker space-oriented program. Inspired by ideas from ecological psychology, we identify four pedagogical principles in practices of responsive learning with environments and suggest these as a possible pedagogical framework for eliciting embodied, emplaced, relational, and integrated learning with environments.
Communication—Electrochemical Single Nano-Impacts of Electroactive Shewanella Oneidensis Bacteria onto Carbon Ultramicroelectrode

Electrochemical single nano-impacts of electroactiveShewanella oneidensisbacteria at a 7 mu m diameter carbon fibre ultramicroelectrode in an aqueous potassium phosphate buffer (pH = 7.2) solution containing a redox active probe (potassium ferro- or ferricyanide) is reported. We present chronoamperometric measurements recorded at the ultramicroelectrode polarized at the potential of the steady-state current of the redox probe in solution (oxidation for K4Fe(CN)(6)or reduction for K3Fe(CN)(6)) in the presence of bacteria. The shape of current transients associated to single bacteria nano-impacts is compared and discussed as a function of the redox probe in solution and of the ultramicroelectrode applied potential.