Miracle-dz/UniFAR-FTUs huggingface dataset:
An Abdominal Phantom With Tunable Stiffness Nodules and Force Sensing Capability for Palpation Training

Robotic phantoms enable advanced physical examination training before using human patients. In this article, we present an abdominal phantom for palpation training with controllable stiffness liver nodules that can also sense palpation forces. The coupled sensing and actuation approach is achieved by pneumatic control of positive-granular jammed nodules for tunable stiffness. Soft sensing is done using the variation of internal pressure of the nodules under external forces. This article makes original contributions to extend the linear region of the neo-Hookean characteristic of the mechanical behavior of the nodules by 140% compared to no-jamming conditions and to propose a method using the organ level controllable nodules as sensors to estimate palpation position and force with a root-mean-square error of 4% and 6.5%, respectively. Compared to conventional soft sensors, the method allows the phantom to sense with no interference to the simulated physiological conditions when providing quantified feedback to trainees, and to enable training following current bare-hand examination protocols without the need to wear data gloves to collect data.
Phytochemical, elemental, physico-chemical, HPTLC and anticancer investigations of Ceropegia spiralis Wight. Tuber extracts

Phytochemical constituents are responsible for medicinal activity of plant species. Hence in the present study Qualitative and quantitative phytochemical screening, Physicochemical, elemental analysis and anticancer activity of Ceropegia spiralis tuber extracts were carried out. Qualitative and quantitative phytochemical analysis of tuber aqueous extract confirm the presence of various secondary metabolites like saponins, triterpenoids, steroids, tannins, alkaloids, flavonoids and phenols. The results suggest that the phytochemical properties for curing various ailments and possess potential anticancer, antimicrobial and antioxidant activities leads to the isolation of new and novel compounds. Physicochemical studies reveals that the dry matter 96.23%; followed by Water soluble extractive 14.28 %. Elemental analysis reveals Nitrogen 3.4 % followed by Zinc 218.9%. Along with this, macro and micro elements which are essential for maintaining the animal body were also determined quantitatively. Anticancer activity of C. spiralis exhibited potential towards MDAMB-231 (human breast cancer) cell lines, shows 78.30% cell death with cell viability 21.70% at 100 µg/ml. The presence of various bioactive compounds confirms the application of C. spiralis against many ailments by the traditional practitioners.
Can preoperative neutrophil-to-lymphocyte ratio predict in-hospital mortality in postoperative patients with Stanford type A aortic dissection? Evidence-based appraisal by meta-analysis and GRADE

Objectives: In-hospital mortality in postoperative patients with type A aortic dissection (AAD) is high. Neutrophil-to-lymphocyte ratio (NLR) is a novel predictor of adverse outcomes in many cardiovascular diseases. We examine NLR as a predictive tool in AAD in this meta-analysis. Materials and Methods: We systematically searched in four databanks. Risk of bias was appraised using the Quality Assessment of Diagnostic Accuracy Studies 2 tool. The midas and metandi commands in Stata 15 were used for the meta-analysis. The certainty of evidence was assessed by the Grading of Recommendations, Assessment, Development, and Evaluation methodology (GRADE). Results: Four studies with 502 cases in total were included. Pooled sensitivity and specificity were 0.71 (95% confidence interval [CI] = 0.52–0.79) and 0.64 (95% CI = 0.55–0.71), respectively. Area under the hierarchical summary receiver operating characteristic curve yielded 0.73 (95% CI = 0.68–0.76). The diagnostic odds ratio was 4.42 (95% CI = 2.56–7.62). Pooled positive and negative likelihood ratios yielded 1.98 (95% CI = 1.53–2.55) and 0.45 (95% CI = 0.32–0.62), respectively. When the pretest probabilities were 25%, 50%, and 75%, the positive posttest probabilities were 40%, 66%, and 86%, and the negative posttest probabilities were 13%, 31%, and 57%, respectively, according to the Fagan's nomogram plot. The overall certainty of evidence in GRADE was low and very low in sensitivity and specificity, respectively. Conclusion: The pooled diagnostic values of preoperative NLR, an inexpensive and routine laboratory examination, provide a practicable help for predicting in-hospital mortality for patients with postoperative AAD in our meta-analysis.
Are Strategic Interactions between Moroccan Local Governments Geographical or Political

This article aims to demonstrate empirically the existence of strategic interactions between the decisions of local governments in Morocco. The main objective is to know whether the interactions between Moroccan municipalities are geographical or political. In order to do this analysis, we use a detailed panel data on 1280 Moroccan municipalities from 2005 to 2009. Our results highlighted that expenditure choices of municipalities are influenced by choices taken in neighboring municipalities. These interactions exist not only among neighboring municipalities but also among municipalities whose Municipal Council have the same partisan affiliation. The analysis of neighboring interactions versus political interactions reveals the intensification of strategic behaviors between neighboring municipalities than municipalities that have the same political party at the top of Municipal Council. Therefore, decentralization induces strategic interactions between municipalities belonging to the same range in developing countries as well as in developed countries.
¿Cabe una educación sexual que sea expresión de una inteligencia cultivada?

This article aims to show how sex education today responds to the dominance that philosophies of suspicion have achieved over intellectual life, a dominance that hinders a normative judgment of human sexuality. Any attempt at regulation is suspected of concealing some kind of domination by some over others. The lack of regulations makes meaningful education about sexuality impossible and only allows for education that is superficial, instrumental, and limits itself to managing unwanted consequences such as teenage pregnancies and sexually transmitted infections. This work shows that there is another way of understanding intellectual life that is linked to moral life, open to the truth, and not just dedicated to denunciation. Thinking well involves living within a tradition and on the path of a good life. A concept of a good life supposes a teleological understanding of the human condition and the necessary cultivation of virtues in order to remain within it. In this dimension, sexuality has a meaning that is not merely biological but also relational, generative, and communicative, and it is subject to rules that derive from our personal character and sexuality’s relationship with intimacy.
Bioinformatics Analysis of Cellulose Synthase CesA Gene from Miscanthus lutarioriparius

Based on 3 generations transcriptome sequencing technology-PacBio SMRT single-molecule real-time sequencing method, supplemented with 2 generation sequencing method, a complete and accurate unigene library was constructed. After comparing with closely related species, the cellulose synthase gene ( CesA ) 4 , 7 , 9 gene sequences of Miscanthus lutarioriparius were spliced and named as MlCesA4 , MlCesA7 and MlCesA9 . Then, Bioinformatics analysis software was used to construct phylogenetic trees of proteins, to predict and analyze the phosphorylation sites of post-translational modifications of amino acids, and to predict and analyze conserved domains of proteins. The analysis results showed that the sequence lengths of MlCesA 4, 7, 9 genes were 2980 bp, 3310 bp, and 3208 bp, respectively, which were closely related to Sorghum bicolor and Zea mays ; cellulose synthase of Miscanthus lutarioriparius (MlCesA) MlCesA4 and MlCesA9 have 43 phosphorylation sites, MlCesA7 has 48 phosphorylation sites; MlCesA4 is an unstable protein with 6 transmembrane domains, 4 domains are outside the membrane and 3 are inside the membrane. ; MlCesA7 and MlCesA9 are stable proteins, both of which have 8 transmembrane domains, 5 domains are outside the membrane and 4 are inside the membrane. The three are all hydrophilic proteins, and the secondary structure is dominated by α-helix and random coils.
MMALE—A Methodology for Malware Analysis in Linux Environments

: In a computer environment, an operating system is prone to malware, and even the Linux operating system is not an exception. In recent years, malware has evolved, and attackers have become more qualified compared to a few years ago. Furthermore, Linux-based systems have become more attractive to cybercriminals because of the increasing use of the Linux operating system in web servers and Internet of Things (IoT) devices. Windows is the most employed OS, so most of the research efforts have been focused on its malware protection rather than on other operating systems. As a result, hundreds of research articles, documents, and methodologies dedicated to malware analysis have been reported. However, there has not been much literature concerning Linux security and protection from malware. To address all these new challenges, it is necessary to develop a methodology that can standardize the required steps to perform the malware analysis in depth. A systematic analysis process makes the difference between good and ordinary malware analyses. Additionally, a deep malware comprehension can yield a faster and much more efficient malware eradication. In order to address all mentioned challenges, this article proposed a methodology for malware analysis in the Linux operating system, which is a traditionally overlooked field compared to the other operating systems. The proposed methodology is tested by a specific Linux malware, and the obtained test results have high effectiveness in malware detection.
Genetic study in Aedes (Stegomyia) aegypti (Linnaeus, 1762) from Londrina (Paraná State, Brazil): an approach to population structure and pyrethroid resistance

Londrina is the fourth most populous city in southern Brazil. Its subtropical weather with rain in all seasons, as well as its high population density, make the city perfect for the Aedes aegypti (Linnaeus, 1762) life cycle. Over the last few years, Londrina presented high infestation indexes and was one of the cities with the most reported cases of dengue. Uncontrolled use of synthetic insecticides may influence the mosquito’s genetic composition. In this paper, we studied mitochondrial DNA and kdr mutations in Aedes aegypti. The analysis of the ND4 gene in 330 specimens showed the presence of 27 haplotypes. The pyrethroid resistance alleles (kdr) evaluated are present in the collected populations, with a 50% frequency of the Val1016Ile and 48% of the Phe1534Cys mutations. Such analysis of the mutations in the populations collected at the State University of Londrina’s campus – a microenvironment that differs from the rest of the city – showed frequencies of 57% and 62%, respectively. The low gene flow observed, Nm = 0.11 and Nm = 0.10, along with the elevated differentiation, Fst = 0.19 and Fst = 0.18, among populations suggest an influence of genetic drift. The strong presence of resistance alleles kdr in the city is evident, which demonstrates that even with the interruption of the use of pyrethroids by the National Dengue Control Program, resistance may be maintained due to domestic use. Thus, the results have shown the need for genetic monitoring, alongside other entomological surveillance monitoring tools, to create strategies of mosquito control. A R T I C L E I N F O Article history: Received 21 August 2020 Accepted 02 January 2021 Associate Editor: Maria Sallum
Structure and genetic diversity of Theobroma speciosum (Malvaceae) and implications for Brazilian Amazon conservation

Abstract The genetic diversity of Theobroma speciosum is important because its use in breeding programs, once the species is closely related to species of great economic value such as Theobroma cacao (cocoa) and Theobroma grandiflorum (cupuaçu). Thus, the objective of this work is to characterize the intra and interpopulational genetic diversity of Theobroma speciosum in natural populations in the Brazilian Amazon. Ninety individuals of T. speciosum from four populations localized in different states of legal Amazon were selected and genotyped. The data were obtained by fluorescence microsatellite analysis and the number of alleles, number of private alleles, fixation index, observed and expected heterozygosity were analyzed. Bayesian analysis, AMOVA and PCOa were used to reveal the molecular genetic structure of the populations, using the programs Structure and GenAIEx 6.5, respectively. All populations studied present great levels of gene diversity, although, there was a greater similarity among the AUR, API and MAC populations, while RBC population presented higher heterozygosity and less inbreeding than the others, becoming a possible refuge area in the Amazon, and the most important population for T. speciosum conservation.
A comprehensive review of caged phosphines: synthesis, catalytic applications, and future perspectives

Phosphines have played an important role in the rapid rise of transition metal-catalysed processes and with the possibility of fine-tuning the electronic and steric properties of these ligands, several synthesis challenges have been overcome in the past decades leading to their application in academia and industry. Caged phosphines are one such class of phosphines with the phosphorus atom at the bridgehead of a cyclic cage and have exhibited excellent control of the steric and electronic properties leading to their applications as ligands in a vast number of catalytic processes. This review provides an overview of the origin of this area of research, as well as the developments that have taken place and how the unique properties of these ligand systems could help to fine-tune the reactivity. A critical analysis of the area reveals some lacunae that will also be highlighted to promote further developments in this area of research.
Hybrid Control Strategy Dual Resonance Core-Based Step-Up/Down Switched Capacitor Converter With Reduced Frequency Range for Wide Output Voltage Application

Wide voltage range converters are significant for photovoltaic power generation system, battery charging, and auxiliary power source, etc. Resonant converter has been preferred topology for these applications, however, some demerits exist: 1) difficult to realize wide voltage gain range and low circulating current losses; 2) widely regulated switching frequency to adapt to wide voltage gain range; and 3) poor regulation at light load. Based on abovementioned shortcomings, dual resonance core-based step-up/down switched capacitor converter topology is presented in this article. Utilizing hybrid control strategy, nonoverlapping control strategy is used in the buck-type mode and overlapping control strategy is applied in the boost-type mode with common switching frequency range, and therefore, reduced frequency range in the presented converter is achieved. Moreover, wide voltage gain range can be obtained due to step-up/down capacity in the proposed converter. Furthermore, conversion ratio of proposed converter can be reduced to zero theoretically by using dual resonance core existed in the resonant switched capacitor converter. Finally, comprehensive operational principle analysis and performance analysis are provided, and a 48 to 28−90 V/100-W prototype is built to verify the analysis.
DESIGN OF DUAL-BAND CONFORMAL AMC INTEGRATED ANTENNA FOR SAR REDUCTION IN WBAN

A wearable, miniaturized, dual-band, Artificial Magnetic Conductor (AMC) integrated antenna operating on ISM band (2.38–2.47 GHz) and WLAN band (5.11–5.31 GHz) is proposed for Wireless Body Area Network (WBAN). A dumbbell shaped unit-cell is designed to achieve zero reflection phase and modified material characteristics. When 2 × 2 array of dumbbell shaped AMC is put underneath the monopole, the antenna gain increases up to 9.5 dB and 8.1 dB at 2.43 GHz and 5.2 GHz, respectively. Different bending conditions have been considered to confirm the robustness of the AMC antenna. Debye model is used to approximate the dielectric properties within phantom tissue model. Antenna shields most of the backward radiation and reduces the specific absorption rate (SAR) of the integrated antenna by more than 95% in 1-g of phantom hand tissues at both the frequencies. The acquired results exhibit that the AMC antenna is more secure for on body applications.
Towards an Ontological Learner’s Modeling During and After the COVID-19 Pandemic

The health crisis and the unprecedented upheaval in the education systems which it caused are far from being over, consequently, the adaptation of the learning experience is most needed, and it should take into consideration the criteria of this specific crisis and its impact on the physical and mental health of the learners In this article, we aimed to present an ontology-based learner model that will bring together the pedagogical and psychological characteristics, but also the health risks generated by the epidemic on the learners, following a Knowledge-Engineering Methodology We developed an ontology that combines the IMS-LIP standard features and the learner characteristic It is ready for different uses in different systems and situations during and after the COVID-19 pandemic, and it will give a global representation of the learner in order to allow him to get the best-adapted courses © 2021 All Rights Reserved
Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint

An online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle. Firstly, based on the Evolved Acceleration Guidance Logic for Entry (EAGLE), drag acceleration-energy profiles are designed. To track the drag acceleration-energy profile obtained by the interpolation, a drag acceleration tracking law is designed. Secondly, based on the constraint model of the no-fly zone, flying around strategies are proposed for different conditions, and a reachable area algorithm is designed for no-fly zones. Additionally, by interpolating the minimum and maximum drag acceleration profiles, the terminal heading angle constraint is designed to realize the accurate calculation of the minimum and maximum downrange ranges by adjusting the sign of the bank angle. In this way, the distribution of landing footprints is more reasonable, and the boundary of a reachable area is more accurate. The simulation results under typical conditions indicate that the proposed method can calculate landing footprints for different situations rapidly and with the good adaptability.
A low-offset low-power and high-speed dynamic latch comparator with a preamplifier-enhanced stage

Department of Physics, Laboratory of Energy, Electrical and Electronics Systems, University of Yaoundé I, Yaoundé, Cameroon Multidisciplinary Laboratory (MLAB), International Centre for Theoretical Physics (ICTP), Trieste, Italy Department of Physics, Laboratory of Electronics and Automatics, University of Douala, Douala, Cameroon Electrical and Electronics Engineering, Xiamen University Malaysia, Sepang, Selangor, Malaysia Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
Language, Class, and Education: Deconstructing the Centre to Rethink Inclusivity in Education in Pakistan

Abstract In COVID-19 times, as learning gaps widen and socioeconomic inequalities exacerbate, inclusivity in education becomes even more important. This paper evaluates inclusivity of educational institutions in the multilingual context of Pakistan at the interstices of class and language, based on some key findings of a 3-year qualitative research that captured the lived in experiences of 36 participants in schools, tertiary education, and beyond. A multiple case study design was used. The instruments were: a) in-depth ethnographic interviews; b) participant observation and c) documentary analysis. Use of Amartya Sen’s capability approach revealed that: a) class-based spatial exclusion persisted not only across but also at times within schools, always intersecting with differential access to dominant languages, nullifying the benefit of instruction in mother tongue. Once class-based differences had translated into acquisition of differently valued languages, spatial inclusion in higher education meant little; b) Emergent exclusionary processes were not only cognitive but also social and psychological in nature, affecting individual in different degrees based on class positioning and at times existed along with processes of inclusion; c) Educational institutions played an active role in constructing an imagined privileged monolingual centre (with English only as the norm), perpetuating discourses of Othering; d) Deconstruction of the monolingual centre revealed it to be illusory, neither inclusive or legitimate in the multilingual context. The paper argues that inclusivity in education at the nexus of class and language needs to be de-segregative and responsive to the multilingual context.
Laminar fluid flow in concentric annular ducts of non-conventional cross-section applying GBI method

Fluid flow in concentric or eccentric annular ducts have been studied for decades due to large application in medical sciences and engineering areas. This paper aims to study fully developed fluid flow in straight ducts of concentric annular geometries (circular with circular core, elliptical with circular core, elliptical with elliptical core, and circular with elliptical core) using the Galerkin-based Integral method (GBI method). The choice of method was due to the fact that in the literature it is not applied in ducts of cross-sections of the annular shape with variations between circular and elliptical. Results of different hydrodynamics parameters such as velocity distribution, Hagenbach factor, Poiseuille number, and hydrodynamic entrance length, are presented and analyzed. In different cases, the predicted hydrodynamic parameters are compared with results reported in the literature and a good concordance was obtained.
Prognostics and Health Management System for Electric Vehicles with a Hierarchy Fusion Framework: Concepts, Architectures, and Methods

The prognostics and health management (PHM) of electric vehicles is an important guarantee for their safety and long-term development. At present, there are few studies researching about life cycle PHM system of electric vehicles. In this paper, we first summarize the research progress and key methods of PHM. Then, we propose a three-level PHM system with a hierarchy fusion architecture for electric vehicles based on the structure, data source of them. In the PHM system, we introduce a database consisting of the factory data, real-time data, and detection data. The electric vehicle's factory parameters are used for determining the life curve of the electric vehicle and its components, the real-time data are used for predicting the remaining useful lifetime (RUL) of the electric vehicle and its components, and the detection data are used for fault diagnosis. This health management database is established to help make condition-based maintenance decisions for electric vehicles. In this way, a complete electric vehicle PHM system is formed, which can realize the whole-life-cycle life prediction and fault diagnosis of electric vehicles.