bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating learning outcomes in engineering education with data mining
Authors: Mahboob Khalid , Ali Syed A. , Laila Umm‐e 
Published: October 2020

AbstractHigher education institutions are catching up on their high competition and challenges are in their analysis productivity. The major challenge is to monitor and analyze student progress through learning outcomes in the curriculum. One of the approaches is the outcome‐based education (OBE) model to deal with learning outcomes. OBE is an integral part of higher education institutions. The OBE system is a key step for accreditation in engineering education. OBE focuses on a student‐centered approach. The OBE is not restricted to well‐defined teaching strategies or direct evaluations but also encompasses indirect evaluations to help students achieve the intended outcomes. In this investigation, engineering students’ data have been analyzed forming three distinct clusters to group students according to best, average, and worst achievement of learning outcomes in two different computer engineering courses generally taught in the early semesters in higher education institutions. A data mining clustering approach is used to segment students using k‐means and k‐medoids techniques. Clustering can be regarded as a data modeling technique that provides summary data that interact with multiple disciplines and plays an important role in a wide range of computer applications. The investigation comprises of two parts for analysis: one part of the analysis is the mid‐term and final exam scores, the quiz and assignment results, the laboratory results, and the evaluation, together with the learning outcomes achieved, and the other part is the comparative analysis of learning outcomes achieved in both engineering courses clustering with the best, average, and worst attainments, respectively. In this investigation, the results obtained from clustering data points show that the same group of clusters with the best, average, and worst learning outcomes achievements formed using both k‐means and k‐medoid clustering for one course. On the other hand, a diverse group of clusters with the best, average, and worst learning outcomes achievements formed using both k‐means and k‐medoids clustering for another course.
Beginning counsellors’ experiences working with children who exhibit externalised behaviours
Authors: Guest Jessie D. , Wymer Brooke C. , Deaton Jennifer D. , Hipp Christopher J. , Newton Therese L. , Ohrt Jonathan H. 
Published: October 2020

AbstractCounsellors who work with children exhibiting externalised behaviours may struggle to maintain therapeutic presence. Challenging client behaviours may trigger countertransference, thus influencing counsellors’ presence in session. In this study, we examined the experiences of beginning counsellors working with children who exhibit externalised behaviours in counselling sessions. We used thematic analysis and identified six emergent themes related to countertransference.
Tackling COVID‐19 Using Remdesivir and Favipiravir as Therapeutic Options
Authors: Sreekanth Reddy Obireddy , Lai Wing‐Fu 
Published: October 2020

AbstractThe human world is currently influenced largely by the outbreak of pandemic COVID‐19. At this moment, most researchers focus on developing treatment strategies and measures to work against COVID‐19. Treatment strategies specific for COVID‐19 are lacking. This article provides an overview of the life cycle and routes of transmission of SARS‐CoV‐2. The therapeutic effects of two drugs [i. e., remdesivir (RDV) and favipiravir (FPV)] which can potentially tackle COVID‐19 are discussed based on current published data. This review can serve as a reference for future studies.
Donor cell‐derived chronic myelomonocytic leukemia presenting after allogeneic hematopoietic cell transplantation for T‐cell acute lymphoblastic leukemia
Authors: Miller Kevin C. , Abdel Rahman Zaid H. , Robetorye Ryan S. , Foran James M. 
Published: October 2020

AbstractDonor cell leukemia is a very rare cause of relapse after allogeneic hematopoietic cell transplantation (alloHCT). Herein, we describe an unprecedented case of donor cell‐derived chronic myelomonocytic leukemia (CMML) presenting seven years after a 51‐year‐old man received a matched‐related alloHCT from his 59‐year‐old brother for T‐cell acute lymphoblastic leukemia.
Recent Progress in CO Hydrogenation over Bimetallic Catalysts for Higher Alcohol Synthesis
Authors: Khan Wasim U. , Baharudin Luqmanulhakim , Choi Jungkyu , Yip Alex C. K. 
Published: October 2020

AbstractThe conversion of carbon monoxide and hydrogen, generally called synthesis gas, to higher alcohols has gained recent attention. Alcohols can be either transformed into other value‐added products such as ethers or used directly as fuels or fuel additives. Various types of catalysts have been prepared and investigated for the hydrogenation of CO to higher alcohols and improvements are in progress to find a robust catalyst with high activity and selectivity towards higher alcohols. In particular, the role of the bimetallic catalyst having two active sites contributing efficiently to higher alcohol synthesis has been a focus in recent years. Herein, the recent development in bimetallic catalyst preparation and the investigations of the reaction mechanism in CO hydrogenation have been reviewed.
Electroanalytical Assessment of the Oxygen Permeability at the Gas‐Solid‐Liquid Interface in Polymer‐based Materials for Lens Applications
Authors: Jarboui Ahmed , Holade Yaovi , Mericq Jean‐Pierre , Charmette Christophe , Thami Thierry , Biermans Peter , Tingry Sophie , Bouyer Denis 
Published: October 2020

AbstractThe design of efficient electrochemical setups to precisely and timely quantify the oxygen permeability, which dictates how the lens let O2 to reach the eye, is important for the development lens‐based materials. We report herein a home‐made electro‐analytical platform made of a 3D‐printed diffusion electrochemical cell to assess this parameter. The design overcomes edge effects and allows analysis under conditions similar to lens wear where the liquid is in contact to the inner surface while the gaseous O2 is in contact with the outer surface. The testing of three types of contact lens materials (flexible polymer, rigid polymer, and gel‐type) showed that the O2 permeability can be fairly well evaluated by the chronoamperometry study of oxygen reduction reaction. Under conditions similar to those of lens wear, our findings showed that the measurement error was 6 %, which offer an alternative to the classic gas‐to‐gas method for O2 permeability determination.
On‐demand mobile health infrastructures to allow comprehensive remote atrial fibrillation and risk factor management through teleconsultation
Authors: Hermans Astrid N. L. , van der Velden Rachel M. J. , Gawalko Monika , Verhaert Dominique V. M. , Desteghe Lien , Duncker David , Manninger Martin , Heidbuchel Hein , Pisters Ron , Hemels Martin , Pison Laurent , Sohaib Afzal , Sultan Arian , Steven Daniel , Wijtvliet Petra , Tieleman Robert , Gupta Dhiraj , Dobrev Dobromir , Svennberg Emma , Crijns Harry J. G. M. , Pluymaekers Nikki A. H. A. , Hendriks Jeroen M. , Linz Dominik ,   TeleCheck‐AF investigators
Published: October 2020

AbstractBackgroundAlthough novel teleconsultation solutions can deliver remote situations that are relatively similar to face‐to‐face interaction, remote assessment of heart rate and rhythm as well as risk factors remains challenging in patients with atrial fibrillation (AF).Hypothesis.Mobile health (mHealth) solutions can support remote AF management.MethodsHerein, we discuss available mHealth tools and strategies on how to incorporate the remote assessment of heart rate, rhythm and risk factors to allow comprehensive AF management through teleconsultation.ResultsParticularly, in the light of the coronavirus disease 2019 (COVID‐19) pandemic, there is decreased capacity to see patients in the outpatient clinic and mHealth has become an important component of many AF outpatient clinics. Several validated mHealth solutions are available for remote heart rate and rhythm monitoring as well as for risk factor assessment. mHealth technologies can be used for (semi‐)continuous longitudinal monitoring or for short‐term on‐demand monitoring, dependent on the respective requirements and clinical scenarios. As a possible solution to improve remote AF care through teleconsultation, we introduce the on‐demand TeleCheck‐AF mHealth approach that allows remote app‐based assessment of heart rate and rhythm around teleconsultations, which has been developed and implemented during the COVID‐19 pandemic in Europe.ConclusionLarge scale international mHealth projects, such as TeleCheck‐AF, will provide insight into the additional value and potential limitations of mHealth strategies to remotely manage AF patients. Such mHealth infrastructures may be well suited within an integrated AF‐clinic, which may require redesign of practice and reform of health care systems.
Assessing the Sorptive Ability of Synthesized Graphene Oxide‐Metal Oxide Composite to Remove Certain Lanthanides
Authors: Sheha Reda R. , Mekawy Zakaria A. , Someda Hanan H. , Shehata Mohamed K. K. , Mahmoud Wagiha H. 
Published: October 2020

AbstractA metal oxide decorated graphene oxide composite (GO‐MO) is prepared via fixation of manganese dioxide (MnO2) on the surface of graphene oxide (GO). The composite is used as a sorbent for the separation of europium and cerium ions from aqueous solutions. The synthesized materials are characterized using scanning electron microscopy, thermogravimetric analysis, X‐ray diffraction, Raman spectroscopy, and Fourier transform infrared spectroscopy. The role of different variables on the sorptive ability of these materials is studied. Two simplified kinetic models, pseudo‐first order and pseudo‐second order, are applied to describe the kinetics of the sorption process. It is found that sorption of Eu(III) and Ce(III) ions on the synthesized sorbents could be described more favorably by the pseudo‐second‐order kinetic model. Sorption data are analyzed with Freundlich and Langmuir isotherm models. Desorption of europium and cerium ions from loaded sorbents is carried out using different eluents. Eu(III) ions are easily desorbed from loaded samples using 0.01 m EDTA while Ce(III) ions are easily eluted using 0.01 m AlCl3. The obtained data clarify that the synthesized composite could be considered as a promising candidate for preconcentration and separation of some lanthanide elements from aqueous solutions.
Corticocuneate projections are altered after spinal cord dorsal column lesions in New World monkeys
Authors: Liao Chia‐Chi , Qi Hui‐Xin , Reed Jamie L. , Jeoung Ha‐Seul , Kaas Jon H. 
Published: October 2020

AbstractRecovery of responses to cutaneous stimuli in the area 3b hand cortex of monkeys after dorsal column lesions (DCLs) in the cervical spinal cord relies on neural rewiring in the cuneate nucleus (Cu) over time. To examine whether the corticocuneate projections are modified during recoveries after the DCL, we injected cholera toxin subunit B into the hand representation in Cu to label the cortical neurons after various recovery times, and related results to the recovery of neural responses in the affected area 3b hand cortex. In normal New World monkeys, labeled neurons were predominately distributed in the hand regions of contralateral areas 3b, 3a, 1 and 2, parietal ventral (PV), secondary somatosensory cortex (S2), and primary motor cortex (M1), with similar distributions in the ipsilateral cortex in significantly smaller numbers. In monkeys with short‐term recoveries, the area 3b hand neurons were unresponsive or responded weakly to touch on the hand, while the cortical labeling pattern was largely unchanged. After longer recoveries, the area 3b hand neurons remained unresponsive, or responded to touch on the hand or somatotopically abnormal parts, depending on the lesion extent. The distributions of cortical labeled neurons were much more widespread than the normal pattern in both hemispheres, especially when lesions were incomplete. The proportion of labeled neurons in the contralateral area 3b hand cortex was not correlated with the functional reactivation in the area 3b hand cortex. Overall, our findings indicated that corticocuneate inputs increase during the functional recovery, but their functional role is uncertain.
Current status on microsatellite instability, prognosis and adjuvant therapy in colon cancer: A nationwide survey of medical oncologists, colorectal surgeons and gastrointestinal pathologists
Authors: Toh James W. T. , Mahajan Hema , Chapuis Pierre , Spring Kevin 
Published: October 2020

AbstractBackgroundThere is significant variation in attitude both towards the role of microsatellite instability (MSI) in predicting prognosis, and towards its role in guiding which Stage II colon cancer patients may benefit from adjuvant chemotherapy.AimTo examine the current status of specialist attitudes towards MSI in guiding prognosis and adjuvant therapy in stage II colon cancer.MethodsThe Pathology in Colon Cancer, Prognosis and Uptake of Adjuvant Therapy (PiCC UP) Australia and New Zealand questionnaire was distributed to colorectal surgeons, medical oncologists and pathologists after institutional board approval. A 5‐scale Likert score was used to assess attitudes towards 23 pathological features for prognosis and 18 features for adjuvant therapy. Data were analysed using a rating scale and graded response model in item response theory (IRT) on STATA (Stata MP, version 15; StataCorp LP).Results164 specialists (45 oncologists, 86 surgeons and 33 pathologists) participated. 80.5% regularly attended colorectal multidisciplinary team (MDT) meetings. 89.63% and 59.26% of specialists reported that MSI status was likely or definitely to influence prognosis in colon cancer and recommendations for adjuvant therapy in Stage II colon cancer respectively.IRT modelling was achieved in 17 pathological features for prognosis. MSI IRT score was 4.47 (95% CI: 4.05‐4.68). IRT modelling was achieved in 10 pathological features for adjuvant therapy. MSI IRT score was 3.62 (2.89‐4.15). MSI ranked 10 (of 17) in order of importance in determining prognosis and ranked three (of 10) in guiding adjuvant therapy.ConclusionMSI status is considered an important biomarker when selecting patients for adjuvant therapy in Stage II colon cancer. MSI is also considered useful in prognostication of colon cancer. MSI status was ranked similar to the tumour grade of differentiation and the presence of perineural invasion.
Photoanodes for Aqueous Solar Cells: Exploring Additives and Formulations Starting from a Commercial TiO2 Paste
Authors: Fagiolari Lucia , Bonomo Matteo , Cognetti Alessio , Meligrana Giuseppina , Gerbaldi Claudio , Barolo Claudia , Bella Federico 
Published: October 2020

AbstractWhereas the commercialization of dye‐sensitized solar cells (DSSCs) is finally proceeding taking advantage of their low cost and tunable optical features, such as colour and transparency for both indoor and building‐integrated applications, the corresponding aqueous counterpart is still at its infancy. As the TiO2 electrode is a fundamental component for hybrid solar cells, this work investigates the effect of different molecular (α‐terpineol, propylene carbonate) and polymeric (polyethylene oxide, polyethylene glycol, carboxymethyl cellulose and xanthan gum) additives that can be introduced into a commercial TiO2 paste for for screen‐printing (or doctor blade). Among all, the addition of polyethylene glycol leads to the best cell performances, with markedly increased short‐circuit current density (+18 %) and power conversion efficiency (+48 %) with respect to the pristine (commercial) counterpart. When further explored at different concentration levels, electrodes fabricated from polyethylene glycol‐based pastes show different morphologies, thicknesses and performances, which are investigated through (photo)electrochemical, structural, physical‐chemical and microscopic techniques.
Sudden blast phase in pediatric chronic myeloid leukemia‐chronic phase with abnormal lymphoid blasts detected by flow cytometry at diagnosis: Can it be considered a warning sign?
Authors: Vijayasekharan Kalasekhar , Chatterjee Gaurav , Ramanathan Subramaniam , Narula Gaurav , Tembhare Prashant , Subramanian Papagudi G. , Patkar Nikhil , Gujral Sumeet , Shetty Dhanlaxmi , Banavali Shripad 
Published: October 2020

AbstractBackgroundInconclusive knowledge persists regarding the course of chronic myeloid leukemia‐chronic phase (CML‐CP) patients with detectable abnormal blasts by flow‐cytometry at diagnosis. The 2016 WHO classification is not specific regarding sub‐classification of CML with <10% abnormal B‐lymphoid blasts (ABLB), and suggests these patients often show rapid progression. We report the clinical course of pediatric CML‐CP patients who had detectable abnormal blasts by flow‐cytometry at baseline.MethodsRetrospective audit of all pediatric CML patients between January 2013 and December 2017 were included. Their clinical presentation, demographic profile, and treatment outcomes were extracted from electronic medical records. Some of these patients got flow‐cytometry done by default, though it was not a routine part of diagnostic CML marrow studies.ResultsAmongst 65 pediatric CML patients, flow‐cytometry at initial diagnosis was available in 15 (CP‐12; AP‐3). Of the 12 CML‐CP patients, 10 (83%) had abnormal flow‐cytometric findings—5 (50%) with mixed lineage blasts (4‐B/Myeloid, 1‐B/T/Myeloid), and myeloid lineage blasts in the remaining 5 (50%). At a median follow‐up of 26 months (range: 9–34 months), 3/5 patients with ABLB at diagnosis progressed to frank blast crisis (2 B‐cell; 1 Mixed lineage). None among the five patients with diagnostic myeloid‐alone aberrant blasts progressed to blast crisis. Imatinib resistant mutation was also found in 3/5 (60%) CML‐CP patients with these ABLB at baseline.ConclusionsAlthough a retrospective study with limited sample size, presence of ABLB detected on flow‐cytometry in CML‐CP patients, had a noticeable early conversion to CML‐BC in our cohort. Incorporation of flow‐cytometry in diagnostic work‐up can provide useful insight regarding the behavior of pediatric CML‐CP patients and guide therapy.
Enhanced Electrochemistry of Carbon Supported Functionalized Nanocomposite Cathode for Aqueous Lithium‐ion Batteries
Authors: Willenberg Shane , Ross Natasha 
Published: October 2020

AbstractA novel carbon supported LiMn2O4 nanocomposite framework has been explored to resolve multiple barriers associated with lithium manganese oxide cathodes for aqueous LIB systems. Here, we have successfully synthesized an architecturally stable AlF3−LiMn2O4/rGO composite with improved electron transfer kinetics and CV peak currents proportional to the square root of scan rate. The synergy between graphene and aluminium trifluoride enhances the intrinsic electrochemical properties of pristine LiMn2O4 (LMO) and reduced Mn+3 dissolution. The unique composite effectively reduced Li+ diffusion distances with less polarization as it effectively accommodates the structural transformation during Li+ ion charge and discharge. The electrochemical interrogation revealed faster charge transportation and decrease in charge transfer resistance due to inhibition of the pronounced pile‐up of Li+ ions and undesired Mn3+ ions on the surfaces. The electrochemical performances were tested in LiNO3 aqueous electrolyte and the cell delivered a capacity of 90 mA h g−1 based on the total weight of the active electrode materials. This aqueous LIB cathode system provides a promising alternative for safe, cost‐effective and scalable energy storage with tolerance against misuse.
A survey on recent optimal techniques for securing unmanned aerial vehicles applications
Authors: Syed Farheen , Gupta Sachin Kumar , Hamood Alsamhi Saeed , Rashid Mamoon , Liu Xuan 
Published: October 2020

AbstractUnmanned aerial vehicles (UAVs) or Drones technology has a huge potential for supporting different efficient solutions for the smart applications in our world. The applications include smart things, smart transportation, smart cities, smart healthcare, smart personal care, smart house, smart industries, and so on. Due to the sensitive applications of UAVs, the security has become a major concern, and therefore, efficient techniques are required to protect captured data from hackers and the fictitious activities from illegitimate users. Machine learning (ML) techniques play a vital role in improving UAVs' security intelligently, while blockchain is recent technology for decentralized UAVs and security. Furthermore, watermarking guarantees digital media to be authenticated, protected, and copyright. Therefore, we provide a comprehensive survey of optimal techniques, which are used for securing UAVs applications in terms of blockchain, ML, and watermarking. Furthermore, we introduce each technique with the advantages and suitably used for securing UAVs collaboration applications. This survey contributes to a better understanding of the blockchain, ML, and watermarking techniques for securing UAVs and sheds new light on challenges and opportunities on subject applications.
Local pressure‐correction for the Navier‐Stokes equations
Authors: Kaya Utku , Becker Roland , Braack Malte 
Published: October 2020

AbstractThis article presents a novel local pressure correction method for incompressible fluid flows and documents a numerical study of this method. Pressure correction methods decouple the velocity and pressure components of the time‐dependent Navier‐Stokes equations and lead to a sequence of elliptic partial differential equations for both components instead of a saddle point problem. In some situations, the equations for the velocity components are solved explicitly (with time step restrictions) and thus the elliptic pressure problem remains to be the most expensive step. Here, we employ a multiscale procedure for the solution of the Poisson problem related to pressure. The procedure replaces the global Poisson problem by local Poisson problems on subregions. We propose a new Robin‐type boundary condition design for the local Poisson problems, which contains a coarse approximation of the global Poisson problem. Accordingly, no further communication between subregions is necessary and the method is perfectly adapted for parallel computations. Numerical experiments regarding a known analytical solution and flow around cylinder benchmarks show the effectivity of this new local pressure correction method.
A new framework to construct third‐order weighted essentially nonoscillatory weights using weight limiter functions
Authors: Parvin Sabana , Kumar Dubey Ritesh 
Published: October 2020

AbstractA new simple and generic framework is proposed to construct nonlinear weights for third‐order weighted essentially nonoscillatory scheme (WENO) reconstructions. It is done by imposing necessary conditions on nonlinear weights to get a nonoscillatory WENO scheme. These conditions give further insight into the required structure of nonlinear weights to design third‐order WENO schemes. This new framework for WENO weights is completely different from the existing prevailing approaches. Several nonlinear weights using different functions of a smoothness parameter (termed as weight limiter functions) are proposed and analyzed. These new weights by construction guarantee for third‐order accurate nonoscillatory scheme. Numerical results for various benchmark test problems are given and compared with WENO‐JS3 wnd WENO‐Z3 scheme. Computational results show that WENO schemes using proposed weights achieves third‐order accuracy for smooth solution and resolves discontinuities without spurious oscillations.