Miracle-dz/UniFAR-FTUs huggingface dataset:
A multi-camera system for vision-based altitude estimation

Navigation of modern aerial platforms typically uses GPS position measurements for accurate position estimation. GPS can provide position accuracies of better than ten meters. However, operation in GPS-denied regions, precludes the use of GPS for navigation, thereby requiring other aiding sources for position estimation. To obtain altitude measurements, barometric-based altimeters are often used. Barometric-based altimeters provide a passive sensor alternative for low-cost aerial vehicles. These altimeters measure barometric pressure to estimate altitude, but provide errors of tens of meters or more due to atmospheric variation, weather conditions, and platform distance from altimeter calibration location. In this paper, we present a multi-camera vision based approach to altitude estimation, which can be used in the absence of GPS. This vision-based approach converts the altitude estimation problem to a ground-based image registration problem, for which highly accurate (pixel and sub-pixel-level accuracy) registration techniques are available. The altitude estimate results from simultaneously aligning multiple onboard cameras to ground reference imagery. The registration spatial error statistics corresponds directly to the altitude estimation error. We use image fusion over multiple registration solutions to provide accurate image registration and thus accurate altitude estimation. We first provide a technical description of the approach. We then generate numerical simulation results demonstrating performance of the approach, and validating aspects of the theory. We compare performance to a standard image rescaling approach for altitude estimation. We demonstrate improved performance over the classical approach.
Solutions of Pauli–Dirac equation in terms of Laguerre polynomials within perturbative scheme

We search for first- and second-order corrections to the energy levels of the Pauli–Dirac equation within the Rayleigh–Schrödinger theory. We use some identities satisfied by the associated Laguerre polynomials to reach this aim. We give a list presenting analytical forms of some integrals including two associated Laguerre polynomials, or their derivatives.
Chaotic ultrasound generation using a nonlinear piezoelectric microtransducer

We report on a piezoelectric micromachined ultrasonic transducer (PMUT) driven in a nonlinear regime, generating chaotic amplitude modulated ultrasonic waves. At large enough drives, the PMUT enters in the Duffing regime which opens a hysteresis with two available states. By modulating the frequency of the driving signal, the system may switch between both states, and selecting the appropriate modulation frequency enables to enter in the chaotic regime. The chaos is then imprinted as a modulation of the PMUT’s amplitude. We characterize this regime in the three accessible domains: electrical, mechanical and acoustic, and demonstrate they are fully correlated. We then focus on the generated acoustic signals and demonstrate that the chaotic modulation propagates according to the PMUT’s linear regime. Remarkably, the detected acoustic waves are strongly correlated to the on-chip piezoelectric measurements, regardless of the acoustic beam profile. The frequency spectrum of the chaotic modulation spreads around the ultrasonic carrier, mimicking a noise modulated carrier signal. We exploit this property for jamming applications where the chaotic PMUT is used to mask surrounding acoustic waves. Unlike most jamming applications, our approach does not require driving signals with a broad frequency spectrum, the noisy pattern arising directly from the structure’s dynamics. Using two PMUTs, one in the linear and the other in the nonlinear regime, we realize a proof-of-concept where the ultrasound generated by the first PMUT is drowned out by the chaotic PMUT signal. We demonstrate that the carrier frequency of the jamming PMUT does not need to match perfectly the one of the linear PMUT. This chaos generation is generic and could be adapted to any PMUT, and thanks to the rich frequency spectrum of the chaotic modulation, the frequency of the signal to jam does not need to be precisely known.
Investigation of ACC-Deaminase and Indole Acetic Acid Producing Bacteria from Rhizospheric Soils in Ağrı Province

Plant growth promoting rhizobacteria (PGPR) have critical role in promoting plant growth and health with various mechanisms. Production of indole acetic acid (IAA) and 1aminocyclopropane-1-carboxylate (ACC) deaminase activity are well-known plant growth promoting (PGP) properties. In the current study; A total of 48 morphologically distinct bacterial colonies were chosen during the isolation of bacteria from various rhizospheric wheat, maize and sainfoin soil samples from agricultural areas in Ağrı-Turkey. The bacteria were isolated from soil samples utilizing by culture-dependent techniques. Then, the strains were visualised for PGP activities such as production acetic acid IAA and ACC deaminase activity. The 16S rRNA sequence similarity of potential PGPR rhizospheric strains demonstrated that strains belong to species Bacillus, Pseudomonas, Microbacterium, Pseudarthrobacter, Arthrobacter and Enterobacter. Totally, 11 of 48 isolates exhibited highly IAA producing and ACC deaminase activity. These results show that IAA producing and ACC deaminase activity of local potential PGPR strains isolated from soil rhizospheric which can appropriate for sustainable agricultural applications in Ağrı province.
Effects of innovative pedagogies on academic achievement and development of 21st-century skills of taxation students in colleges of education

ABSTRACT The curiosity to determine the mechanisms for development of innovative skills in learners and the efficacy of innovative pedagogies in improving students’ achievement in Taxation and acquisition of 21st-century skills is what informed this research. We assigned 248 taxation students to three classes, two taught with innovative methods. Results showed that students who received treatment had significant improvements in academic achievement and developed 21st-century skills more than those in the control groups. We recommended that government, educational institutions and other stakeholders should enact and implement policies on integrating innovative pedagogies and 21st-century learning models into taxation curricula. The implications and limitations of the study were also discussed.
Brief commentary on the impact of global climate change on fisheries and aquaculture with special reference to India

Climate Change is a global phenomenon and is one of the burning glitches and emerging environmental issues in present time. The impact of climate change is manifold and having indelible impact on all aspects of earth life and biodiversity. Fisheries and Aquaculture have been considered as an important branch of Indian subcontinent economy associated with agriculture and allied sectors. Millions of stakeholders are dependent directly or indirectly on aquaculture and fisheriessector for their livelihood belonging mostly to the bottom of economic pyramid with lower incomes, unorganized jobs, greater socio-economic vulnerability. Often they are under privileged andmostly affected by the vagaries of climate change. Erratic temperature and rainfall patterns, storm-water surges, salinity invasion, increasing sea-surface temperature, oceanic acidification, salinization of freshwater resources associated with tropical cyclones such as Aila, Fani, Bulbul to the very recent Amphan and Nisarga has created a havoc loss in fisheries and aquaculture sector in both east and west coast of India as well as along Bangladesh coast. Frequent natural disasters associated with global climate change have been a common global phenomenon since last decade. Therefore, it is pertinent to understand the crucial interplay between multifarious impacts of global climate change on fisheries as well as aquaculture sector. Innovation and proper incubation of entrepreneurial opportunities in fisheries and aquaculture sector might provide the necessary oxygen for growth and proliferation. This can also help other developing economies relying on fish and aquaculture resources to develop a holistic approach on similar lines. This scientific communication throws light on these aspects through a brief commentary. INTRODUCTION: Ecosystems across the world are facing unanticipated changes due to fluctuations of global climate since the last century (Guldberg and Bruno, 2010; Pachauri, 2007)). The comprehensive understanding of how anthropogenic
From Solvent to Sustainable Catalysis - Chloroferrate Ionic Liquids in Synthesis

During the past few years, Lewis-acidic ionic liquids (ILs) have emerged from their role as mere reaction media toward a role as novel catalytic systems. Iron-containing chloroferrate ionic liquids in particular offer a novel approach to sustainable and environmen- tally benign catalysis and can be applied in a surprising diversity of transformations. In this review, we present this emerging topic and report the application of chloroferrate ILs as solvents, catalysts or catalytic systems for a variety of chemical processes, with a particular focus on reactions leading to pharmaceutically active compounds or intermediates. th birthday.
Personalisierte Medizin in der Pharmakotherapie: Wie weit sind wir in der Veterinärmedizin?

20 Die personalisierte Medizin soll für jeden Patienten eine optimale Therapie ermöglichen. Dies erfordert, dass individuelle Unterschiede in der Arzneimittelantwort bekannt sind und vor Therapiebeginn auch diagnostisch bestimmt werden können. In der Veterinärmedizin ist dies aktuell nur in sehr wenigen Fällen (z.B. beim sog. MDR1-Defekt) möglich, in den nächsten Jahren werden aber große Fortschritte erwartet.
Oral Narrative Instruction Improves Kindergarten Writing

Abstract Writing is a critical literacy skill that emerges in kindergarten. The research literature has only addressed transcription skills of kindergarteners and has failed to address text generation. The purpose of this action-research study was to investigate the effect of oral language instruction that focused on narrative text structures on kindergarten students’ ability to generate written narrative text. We conducted a concurrent multiple baseline design across three groups of students with two participants in each group. Students received six instructional sessions that involved the teacher modeling a story and supporting the students while they retold and generated oral stories. Pictures and icons were used to represent story grammar elements, but were faded within session to facilitate independent storytelling. The oral language instruction had an immediate positive effect on the narrative quality of students’ writing. Individual and overall effects were significant and maintained three to four weeks later. Findings suggest an efficient causal relation between oral language instruction and writing quality.
Noise radar range doppler imaging via 2D generalized smoothed‐
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This paper presents an algorithm to enhance the range-Doppler imaging performancefornoiseradar. TraditionalmatchedﬁlteringbasedmethodsuffersfromhighrangeandDopplersidelobes,whichmakestheweaktargetsoverwhelmedbythesidelobesofstrongtargetsorcluttersintherange-Dopplermap.Sparserecoverybasedmethodshavebeenwidelyusedtosuppresssuchsidelobes,butmostofthemassumearepetitivetransmitwaveform,whichcannotbeappliedtonoiseradarapplications.Inthisletter,therange-Dopplerimagingproblemfornoiseradarisfor-mulatedasasparserecoverymodelandsolvedbya2Dgeneralizedsmoothed-l 0 algorithm. The proposed method can deal with the random waveforms varying among different pulses in noise radar. The robustness of the proposed method in strong noise and clutters is validated by simulation results.
Desarrollo de Actitudes de Colaboración, Cooperación e Innovadoras en el Aula Basado en Proyectos

Project-based learning (PBL) is a fundamental tool to motivate students, allowing them to get involved in meaningful learning by feeling like the true protagonists. This research aimed to promote collaborative, cooperative, and innovative work to design, develop, and implement a prototype that allows managing a robotic arm (automaton) using an Arduino microcontroller. The presented problem to be solved was to a group of 16 students of the 3rd grade of Mechatronics Engineering, UTSC. They used six servo motors, three aluminum U-shaped structures, a clamp-shaped tool, an Arduino Uno board, a power source, a USB interface, a computer, a wooden base where they will hold components. They managed to structure a robot arm with 6 degrees of freedom capable of executing the microcontroller's movements. The observed development of the notable project improvement in their ability to work as a team and motivation develops the project. As critical thinking and propose solutions to the problems faced. The use of educational robotics in the classroom through the development of projects is a very efficient tool that leads students to develop skills, promote critical thinking, take the different concepts or theoretical approaches seen in class to a fundamental level of action.
Describing law of motion of flexible inextensional shell in gravity force field

This work makes use of Navier-Stokes equations to describe an analytical method of finding the motion speed of a flexible inextensional shell falling down to the ground from a preset height and determines the duration of this fall. The soft shell in question is a fabric body of aerodynamic shape or an item of clothes, an airborne vehicle element, etc. Analytical relations are presented for the speed at which the shell moves in the air, taking account of the air resistance and the shell fall duration. The boundary problem of the soft shell vertically falling in the air is solved.
nCODET: A Tool For Novice Developer To Detect Untestable Code

Uncontrollability is troublesome for unit testing. It causes a non-deterministic behavior where the same input can produce different results based on different executions. The non-deterministic characteristic makes it impossible to test the internal logic of a method because it suffers from tight coupling, a single responsibility principle violation, being an untestable code, being non-reusable or hard to maintain. This paper describes a tool, namely the non-deterministic Code Detection Tool (nCODET) that aims to assist novice developers to write testable codes by avoiding the non-deterministic characteristic in their codes. Our research focuses on the unit testability of classes; particularly the effort involvedin constructing unit test cases.
Correlations between the Characteristic Rheological Quantities and Molecular Structure of Long-Chain Branched Metallocene Catalyzed Polyethylenes

Different rheological quantities, such as the zero shear-rate viscosity η0 and the linear steady-state elastic compliance Je0 of long-chain branched metallocene-catalyzed ethene homopolymers and ethene-/α-olefin copolymers with a polydispersity Mw/Mn ≈ 2, were correlated with the molar mass Mw and degree of long-chain branching λ. A linear reference for the δ(|G*|) plot was used to show the effect of long-chain branches on this rheological property. The linear steady-state elastic compliance Je0 correlated with the zero shear-rate viscosity increase factor η0/η0lin and the characteristic phase angle δc. However, the latter only works when compensating for the influence of the molar mass on Je0 by the relationship between Je0 and Mw established elsewhere (Stadler and Munstedt, JoR, 2008). The characteristic phase angle δc and zero shear-rate viscosity enhancement factor η0/η0lin are linked to each other by the linear dependencies for the type I and type II viscosity functions.
Influence of Toltrazuril on Disposition Kinetic and Bioavailability of Thiamphenicol in Broilers

The Effect of toltrazuril on the disposition kinetics and bioavailability of thiamphenicol following a single intravenous (IV) and oral administrations in broiler chickens at a dose of 30 mg/kg body weight was investigated. The serum thiamphenicol concentration was detected by high performance liquid chromatography. After IV injection, thiamphenicol serum concentration was best to be described by a two-compartment open model. Toltrazuril pretreatment was resulted in a significance increase in Vdss and Cltot (3.51±0.1and 0.38±0.005 L/kg, respectively) of thiamphenicol compared with thiamphenicol administered alone (2.31±0.1 and 0.31±0.006L /kg, respectively). The elimination half-life and the mean residence time of thiamphenicol were 4.58±0.2 and 2.44±0.1, 5.72±0.2 and 2.25±0.1h. , in control and toltrazuril pretreated chickens, respectively. Following oral dosing, the maximum serum concentration was 14.58±0.1 and 11.88±0.04 μg/ml reached at 3.64±0.01 and 3.56±0.01h, in control and toltrazuril pretreated chickens, respectively. Oral bioavailability was found to be 117.79± 1.2 and114.85 ±0 . 7 % in control and toltrazuril pretreated chickens, respectively. It was concluded that the pretreatment of toltrazuril with thiamphenicol in broilers altered the pharmacokinetic profile of thiamphenicol.
Mobility-Related Barriers to Accessing Homeless Services: Implications for Continuums of Care and Coordinated Entry

Objective: Geographic mobility, or transience, is relatively common among people experiencing homelessness. However, little is known about whether mobility facilitates or impedes service access. The present research uses a lens of bureaucratic disentitlement and administrative burden to explore the intersection of geographic mobility and adult homeless service use, with special attention paid to understanding dynamics between local and federal policy implementation. Method: Maximum variation sampling was used to recruit 23 homeless service providers from Continuums of Care (CoCs) in urban and rural counties in New York State. Data were collected through semistructured qualitative interviews and analyzed using an iterative first- and second-cycle coding procedure to build themes. Findings: Participants described two mobility-related barriers to accessing services that stem from service system policies, procedures, and resources. First, county-level policy can both disincentivize and create mobility. Second, mobility can hinder the initial stages of the coordinated entry process. Conclusions: Geographic mobility matters when understanding access to emergency shelter and services. Service system procedures and governing policies can create administrative burdens and other barriers to services for individuals with a history of mobility or transience. Theoretical and practice contributions are discussed, including strategies for working with local government and improving coordinated entry systems.
A review of cryptographic algorithm recognition technology for binary code

Aiming at the cryptographic algorithm that may be contained in the binary program, combined with existing research results, several cryptographic algorithm identification techniques are analyzed, including control flow graphs, data flow graphs, feature matching, selection of command statistical attributes, and semantic-based behavior analysis. The recognition effects of related technologies are discussed respectively.
Schistosomiasis prevalence and low-cost diagnostics in rural Northwestern Madagascar: a pilot study

screening tests are a necessary component of schistosomiasis control programs. The clinic continued to use urinalysis strip testing and urine microscopy to detect schistosomiasis after this study and decided to discontinue the use of POC-CCA S. mansoni urine testing because of cost. Increased awareness of schistosomiasis resulting from this screening program led to the installation of multiple infrastructure projects in local communities to improve access to potable water, demonstrating community benefits of schistosomiasis screening that extend beyond the identification of infected individuals.
Ultra-highly Yb-doped silica-based optical fibers

In this paper we systematically study a limitation for maximum of Yb dopant concentration in silica based fibers. Two the most popular glass matrixes (F-Al2O3-SiO2 and Al2O3-P2O5-SiO2) were thoroughly investigated in this respect. A possibility to introduce ultra-high doping level of Yb2O3 (in excess of 2.5 mol%) with a relatively low optical losses in fibers was demonstrated. At the same time it was investigated that at ultra-high Yb concentration in the fiber core even with maintaining very low background losses (both initial and induced by photodarkening) such a fiber can nearly completely lose its active properties. Optimal glass matrixes and optimal concentration of Yb dopant in the glass core, which allow keep up lasing properties of the developed fibers high, were studied. An ultra-short length fiber amplifier (~3.5 cm) based on the developed Al2O3-P2O5-SiO2 glass core fiber doped with 1.2 mol% of Yb2O3 (Yb ions absorption was about 1000 dB/m at 920 nm) was created.
Sentiment Analysis - An Assessment of Online Public Opinion: A Conceptual Review

Abstract: This conceptual paper discusses sentiment analysis as a technique of research. It is a tool support decision for textual data collection and analysis available on the internet. It is also considered as a technique of data mining. It uses machine learning language to evaluate textual content. As a method of research, it is computational by nature and identify and categories opinions in the form of text. It targets a large data without any delay and hurdle and also facilitates the collection of data and its analysis. It helps domain leaders to collect real time data about emotions, opinion and attitude, without compromising, validity, reliability and generalizability. The paper also presents this as a way to divide quantitative and qualitative data through real time innovative ways of collection and analysis of data. The paper also discusses limitations one experience when applying this in their domain of research.
Influence of chitosan and epoxy cross-linking on physical properties of binary blends

ABSTRACT In this study, blends of chitosan (Cs) and bisphenol-F-diglycidyl ether (3.80 × 10−3 to 3.80 × 10−2 mol) were cast by the solution route. FT-IR results suggested that chitosan was cross-linked at terminal amino groups through diepoxide linkage. The chitosan films became less flexible and stiffer upon reaction with epoxy. Blending improved percentage elongation (31%) and toughness (10 MPa), whereas Young’s modulus (145 MPa) and tensile strength (45 MPa) were decreased. Extent of weight loss in Cs/BPFDGE was lower (15%) than that of original precursors (chitosan 33%). Moreover, blending of chitosan with BPFDGE increased water absorption properties due to generation of hydrophilic −OH groups.