Miracle-dz/UniFAR-FTUs huggingface dataset:
Insights on the residency status and inter-island movement patterns of pantropical spotted dolphins Stenella attenuata in the Agoa Sanctuary, Eastern Caribbean

The pantropical spotted dolphin (PSD, Stenella attenuata) is the most common cetacean species observed within the Agoa Sanctuary, located in the Lesser Antilles, Eastern Caribbean. These dolphins are easily observable and are the main target of whale-watching activities along the leeward coasts of Guadeloupe and Martinique islands. Because PSD is common within the sanctuary it is considered a resident species, however, no research has been carried out to estimate its population status and movement patterns between islands. Previous unpublished work found the sighting of an individual in Martinique and Guadeloupe, suggesting potential exchange of individuals between these islands. To test this hypothesis a photo-ID survey in 2018 and 2019 was conducted, resulting in 54,298 photographs. With no matches of individuals between islands, our findings do not support regular exchange of PSD individuals between Martinique and Guadeloupe. However, given previous re-sighting data, it is possible that movement of individuals between islands exists but at lower frequencies than expected, which can only be detected through long-term surveys. Additionally, populations from both islands showed relatively high site fidelity. We found that in Guadeloupe the PSD population is homogeneously distributed along the coast. In contrast, in Martinique the PSD population was composed of two resident groups concentrated in one area. Moreover, 70 new individuals were identified in Guadeloupe and 54 in Martinique while POPAN modelling estimated the number of marked individuals in the study area during 2018 and 2019 at 89 in Guadeloupe and 90 in Martinique. This research provides the first insights on the residency and movement patterns of S. attenuata in the Agoa Sanctuary and can inform future efforts in management and conservation.
Partial Transfer Ensemble Learning Framework: A Method for Intelligent Diagnosis of Rotating Machinery Based on an Incomplete Source Domain

Most cross-domain intelligent diagnosis approaches presume that the health states in training datasets are consistent with those in testing. However, it is usually difficult and expensive to collect samples under all failure states during the training stage in actual engineering; this causes the training dataset to be incomplete. These existing methods may not be favorably implemented with an incomplete training dataset. To address this problem, a novel deep-learning-based model called partial transfer ensemble learning framework (PT-ELF) is proposed in this paper. The major procedures of this study consist of three steps. First, the missing health states in the training dataset are supplemented by another dataset. Second, since the training dataset is drawn from two different distributions, a partial transfer mechanism is explored to train a weak global classifier and two partial domain adaptation classifiers. Third, a particular ensemble strategy combines these classifiers with different classification ranges and capabilities to obtain the final diagnosis result. Two case studies are used to validate our method. Results indicate that our method can provide robust diagnosis results based on an incomplete source domain under variable working conditions.
Double Adaptive PI-Structure for Regulating a Microgrid DC Bus Using a Flyback-Based Battery Charger/Discharger Converter

DC microgrids are composed of loads, renewable sources, and storage devices that require control and protection to operate safely. The flyback converter is an alternative to connect paralleled batteries with nominal voltage DC buses; however, until now, complex controllers have been proposed, making difficult their implementation. On the other hand, when the voltage of a DC microgrid is not properly controlled, the loads may be damaged due to the voltage outside of the safe range. Therefore, proposed in this paper are two adaptive PI-structures to control a battery charger based on a flyback converter to be used in DC microgrids. The first adaptive current controller regulates the magnetizing current for stabilizing the system, and the second adaptive voltage controller regulates the voltage of the DC bus to protect the elements of the microgrid. The methodology to design the adaptive parameters of the PI-structures is developed as follows: first, the power stage of the flyback converter is introduced to derive a control-oriented model. The battery and the DC bus of the microgrid, which are interfaced by the flyback converter, are represented with widely accepted approaches. The second step is focused on modeling the system. The flyback converter, which includes a capacitance to model the DC microgrid, is represented by a dynamic model. The differential equations are averaged, and several transfer functions of the main variables are obtained. In the third step, the transfer functions are used to design the PI adaptive current controller and the PI adaptive voltage controller. In the last step, several recommendations are made to implement the power and control stages in low-cost hardware. An application example with realistic parameters is carried out in PSIM to validate the controller loops design. A battery of 12 V is connected to a DC microgrid of 48 V through a flyback converter with a switching frequency of 50 kHz. The settling time and deviation of the DC microgrid voltage, after a perturbation, are 0.845 ms and 2.04 V respectively, while the maximum values are adjusted to be 1 ms and 2.4 V. The simulation results validate the proposed procedure and the effectiveness of the PI-structures in regulating the magnetizing current and the DC bus voltage.
Frequency of oral Lichen Planus among hypothyroid patients

of Dentistry. Tehran, Iran. ABSTRACT Objective: Recent investigations have suggested a correlation between thyroid diseases, particularly hypothyroidism (HT), and oral lichen planus (OLP). Objective: This study aimed to assess the frequency of OLP in HT patients. Material and Methods : This analytical descriptive study evaluated 100 HT patients including 94 females and 6 males, who were selected by convenience sampling. The subjects were clinically examined for OLP. The mean age of patients was 42.49±1.29 years. Also, 100 age- and sex-matched healthy controls were examined. The data were analyzed using chi-square test and Fisher’s exact test via SPSS. Results : Of all, 14 (14%) HT patients (12 females and 2 males) had OLP while only one case of OLP was found in the control group. The difference between the two groups in the frequency of OLP was significant (P=0.001). The odds ratio (OR) of developing OLP was calculated to be 16.11 in HT patients. Reticular form was the most common type of OLP in patients (50%). The buccal mucosa was the most common site of involvement (92.85%). The mean age of patients with OLP was 42.93±1.29 years with a median of 46±1.29 years in HT group. Conclusion : The frequency of OLP was significantly higher in HT patients such that HT patients had higher odds of developing
CFD analysis of nozzle effect on jet formation Analysis of mixing performance, turbulence and flow instability

This project is concerned with CFD simulations of jets issued from elliptical nozzles. The investigated jet flow in this project is turbulent flow emanating from microscopic nozzles into a combustion chamber. Jet flows are very common in engineering, medical and environmental applications and are for instance used in fuel injection systems, spray painting and drying. Jet flow devices are also very common in applications such as cutting, hydraulic drilling, cooling and heating. A better understanding of the flow phenomenons in jet flows are required in order to make these devices function and perform in a more efficient way. The performance of diesel engines is strongly affected by the fuel spray, atomization and in turn the mixing process. This depends ultimately on the dimensions and geometry of the nozzle. The purpose of this project was therefore to investigate different elliptical nozzle geometries which also was compared to a conventional circular nozzle. Three dimensional simulations have been performed to investigate flow quantities in the turbulent Reynold’s Averaged Navier Stokes and Large Eddy Simulation models in a single phase flow. Simulation of a two-phase flow with the Large Eddy Simulation model was also performed to investigate the inception and development of cavitation. The Volume of Fluid approach was used to describe the twophase flow and Rayleigh-Plesset equation to solve bubble dynamics. The mathematical models regarding those in single phase flow have been solved in the CFD software ANSYS FLUENT, while those in two-phase flow have been solved in the open source C++ toolbox OpenFOAM 2.0. 0.
Determinant of Access to Credit and Availing Subsidies for Protected Cultivation in Maharashtra

Protected cultivation requires high initial investment and intensive use of inputs for crop production but offers better yield which in turn increases the profitability of the farm. The study attempts to explore the economics of protected cultivation with different interest rates regime and subsidy in Pune and Nasik districts of Maharashtra conducted during 2018-19. About 95 to 97 per cent of the farmers availed subsidy from the government and the rest of the farmers constructed their polyhouse and shade net house without subsidy. About 47 to 50 per cent of the total cost was given as subsidy. Heckman selection model showed that the factors such as years of education, farm size, farm income, membership and occupation were the major determinants of access to credit. The study also indicated that household age, farm size, farm income, distance from the market and access to subsidies were important drivers of technology adoption. Among all, the access to subsidy reflected the availability of external capital support as one of the determining factors for adoption of technology. The factors responsible for non-repayment of loans were increase in farm income, family size and years of schooling.
An Item Response Theory Analysis of the Wisconsin Card Sorting Test in Normal Aging, Alzheimer’s Disease and Parkinson’s Disease: Neurophysiological Approach

The Wisconsin Card Sorting Test (WCST) is widely used to assess executive function, specifically mental flexibility. Item Response Theory (IRT) has several advantages over classical test theory, including the invariance of the measure. This study aimed to apply IRT to study the psychometric properties of WCST in control subjects and patients with idiopathic Parkinson’s disease (PD) and Alzheimer’s disease (AD). The sample consisted of 86 controls, 77 Parkinson’s disease subjects, and 155 AD subjects. The Rasch model was applied to binary data from the conversion to percentiles adjusted for age and schooling. The R program was used to calibrate the difficulty parameter. The characteristic curves of the items and the estimation of the difficulty parameter for each diagnostic group were obtained. WCST makes it possible to separate between different skill levels among the three diagnostic entities and its application may be useful for other neuropsychological tests. In conclusion, WCST has good clinical sensitivity and excellent discriminant validity in the groups under study, making it possible to separate them between different levels of ability or latent trait. Its application may be useful for other neuropsychological tests.
Beliefs and Practices of EFL Instructors in Teaching Pronunciation

Pronunciation teaching and learning have stimulated a renewed interest among second language acquisition (SLA) researchers in the past few years. To pursue this line of inquiry, this study set out to investigate the beliefs and practices of Iranian EFL teachers on pronunciation teaching. Convenience sampling was employed to recruit 74 participants who completed a pronunciation teaching and learning questionnaire. Interviews were also conducted with volunteered participants. The results revealed that 57% of the respondent teachers mostly worked on suffixes such as the -ed and -s endings always or often in their classrooms. The second most frequently taught feature was word stress (54%), followed by syllable structure, which 53% of the teachers often or always taught. Drama and role-play were the most common strategies often or always used by 49% of the teachers in teaching pronunciation. In addition, interviews with participant teachers revealed that the most common classroom activities were imitation and repetition. Finally, although most participants emphasized the need to teach pronunciation, they did not consider themselves highly qualified. They indicated an insatiable desire for more pronunciation training in teacher education programs to use opportunistic teaching and integrated phases to teach pronunciation. Most of the teachers did not teach pronunciation as a separate lesson since the school curriculum, the pre-specified book, and the time limitation did not let them focus on pronunciation as a separate lesson.
STEM Professional Development Activities and Their Impact on Teacher Knowledge and Instructional Practices

The science, technology, engineering, and mathematics (STEM) field is a crucial global driver for the development of various aspects of modern society, such as the economy, technology, education, and skills of the 21st-century workforce. All countries strive to produce STEM talent to meet future economic markets. Sustained professional development (PD) can support reform in STEM. Teachers need professional training to improve their knowledge, understanding, and teaching practices, which affect the development of their students’ meaningful learning. As a result, a systematic study was carried out to identify STEM PD activities and their influence on teachers’ knowledge and instructional methods. The peer-reviewed publications were published between 2017 and 2021, and Scopus, Web of Science, and EBSCOhost databases were used to find them. A comprehensive review of these empirical articles produced a total of 15 subthemes under activities and impact themes. The results exhibited that the dominant activities of STEM PD included engineering activities that indirectly had an extremely high impact on teachers’ knowledge and teaching practices related to engineering design, the problem-solving process as it relates to the engineering design process, and experiences of scientists and engineers. Finally, several recommendations for STEM PD sustainability and future research reference are presented.
Facile Modification of Flexible Electrodes via Laser Transfer

In this work, we report the modification of commercially available electrochemical electrodes with tin oxide (SnO2) and Pd doped SnO2 (Pd-SnO2) via pulsed laser-induced forward transfer (LIFT). The pulsed light irradiation working as in situ pulsed photo-thermal treatment allows for the transfer of SnO2 and Pd-SnO2 from UV absorbing metal complex precursors onto flexible, commercially available screen-printed electrodes. The laser transfer conditions are optimized and the material transferred under different conditions is evaluated morphologically and chemically, and its functionality is tested against the detection of copper ions. For example, by applying laser fluences in the range 100–250 mJ/cm2, the shape and the size of the transferred features ranges from nano-polyhedrons to near corner-grown cubic Pd-SnO2 or near cubic Pd-SnO2. In addition, the EDX analysis is consistent with the XPS findings, i.e., following laser transfer, Pd amounts lower than 0.5% are present in the Pd-SnO2 pixels. First sensing tests were carried out and the transferred Pd-SnO2 proved to enhance the cathodic peak when exposed to Cu(II) ions. This photo-initiated fabrication technology opens a promising way for the low-cost and high-throughput manufacturing of metal oxides as well as for electrodes for heavy metal ion detection.
Physical Layer Security of Two-Way Ambient Backscatter Communication Systems

Achieving high network traffic demand in limited spectrum resources is a technical challenge for the beyond 5G and 6G communication systems. To this end, ambient backscatter communication (AmBC) is proposed for Internet-of-Things (IoT), because the backscatter device (BD) can realize communication without occupying extra spectrum resources. Moreover, the spectral efficiency can be further improved by using two-way (TW) communication. However, secure communication is a great challenge for accessing massive IoT devices due to the broadcasting nature of wireless propagation environments. In light of this fact, this article proposed a two-way ambient backscatter communication (TW-AmBC) network with an eavesdropper. Specifically, the physical layer security (PLS) is studied through deriving the analytical/asymptotic expressions of the outage probability (OP) and intercept probability (IP). Moreover, the outage probabilities (OPs) in high signal-to-noise ratio (SNR) regions are studied for the asymptotic behavior and the intercept probabilities (IPs) in high main-to-eavesdropping ratio (MER) regions as well. Through analysis and evaluation of simulation performance, the results show that (i) when considering the target node, the OP of the BD decreases with increasing SNR, that is, enhancing the reliability; (ii) an optimal value of BD’s reflection coefficient that maximize the reliability of backscatter link can be obtained; (iii) in high SNR regions, the OPs approach a constant; thus, the diversity orders are zero; (iv) when increasing the MER, the IP of target node decreases, suggesting the security enhances; (v) a trade-off exists between reliability and security which can be optimized by carefully designing the parameters.
Indications and outcomes of pediatric penetrating keratoplasty: A retrospective observational study

Background: Pediatric corneal transplantation can be indicated in congenital and acquired conditions. Challenges include preoperative evaluation, multiple intraoperative obstacles, and postoperative problems in follow-up and management. This study was aimed at identifying the indications and clinical outcomes of pediatric penetrating keratoplasty (PKP) in Jordan. Methods: This retrospective cohort study was conducted in Amman, Jordan. Using the hospital’s electronic database, all medical records of patients aged < 18 years who underwent PKP between January 2004 and October 2019 were reviewed. Preoperative evaluations included best-corrected distance visual acuity (BCDVA) and anterior and posterior segment examinations. Postoperative complications, BCDVA, and graft survival were examined 1 year postoperatively. Results: A total of 149 cases of pediatric PKP were performed on 141 eyes of 118 patients with an age mean ± standard deviation (SD) of 11.44 ± 4.97 years at the time of surgery. Acquired non-traumatic corneal pathologies accounted for 65.8% of indications for PKP. The most frequent indication was advanced keratoconus (55.7%). Preoperative and 1-year postoperative BCDVAs significantly differed (P < 0.001), with 111 (74.5%) patients showing improved BCDVA, 12 (8.05%) patients showing worsened BCDVA, and 26 (17.45%) patients showing no change in BCDVA. The overall 1-year graft survival rate was 80.54%. Conclusions: This was the largest study in Jordan involving pediatric patients who underwent PKP for various indications, showing a significant improvement in BCDVA, with a high survival rate at 1 year. Future studies with longer follow-up periods could provide stronger evidence for surgical outcomes and graft survival. Further, the option of lamellar keratoplasty in the pediatric age group should be assessed.
IMPLEMENTATION OF ELECTRONIC CUSTOMER RELATIONSHIP MANAGEMENT IN THE DONATION SERVICE INFORMATION SYSTEM

LAZNAS LMI Regional Office of South Sumatra is an institution engaged in the field of religion and humanity. One of the services provided by the LMI Regional Office of South Sumatra is a donation service. However, the service is still not effective and efficient. Based on the results of the questionnaire on donation services at the LMI Regional Office of South Sumatra, the calculation results. obtained Net Promoter Score1 of -61.6% which indicates a negative value. This shows the need to improve donation services in order to create loyalty. The E-CRM concept aims to provide satisfaction and increase loyalty. Therefore we need a donation service information system that can make it easier for both LMI and donors. As well as a measurement that measures the loyalty of donors using the Net Promoter Score calculation method and the FAST system development method. From the measurement results of Net Promoter Score2, the calculation results are 77%, this shows that the loyalty of donors has increased towards the improvement of donation services at LMI Regional Office of South Sumatra.
Technological Novelties of Ground-Based Very High Energy Gamma-Ray Astrophysics with the Imaging Atmospheric Cherenkov Telescopes

In the past three decades, the ground-based technique of imaging atmospheric Cherenkov telescopes has established itself as a powerful discipline in science. Approximately 250 sources of very high gamma rays of both galactic and extra-galactic origin have been discovered largely due to this technique. The study of these sources is providing clues to many basic questions in astrophysics, astro-particle physics, physics of cosmic rays and cosmology. The currently operational generation of telescopes offer a solid performance. Further improvements of this technique led to the next-generation large instrument known as the Cherenkov Telescope Array. In its final configuration, the sensitivity of CTA will be several times higher than that of the currently best instruments VERITAS, H.E. S.S. , and MAGIC. This article is devoted to outlining the technological developments that shaped this technique and led to today’s success.
Distortion Analysis of Differential Amplifier

The linearity of the CMOS is of major concern in the design of many analog circuits. In this paper the nonlinearity behavior of CMOS analog integrated circuits is investigated.The basic building block of analog integrated circuits such as differential amplifier with current mirror load have been chosen for harmonic distortion analysis.A mechanism to analyze the distortion of CMOS circuits in deep submicron technology that can be easily used to detect the distortion is built.The MOSFET model used for simulation is TSMC BSIM3 SPICE model from 0.13-µm CMOS process technology. HSPICE circuit simulator tool is used for distortion analysis of CMOS circuits. The MOS model used in this paper includes short-channel effects and gate-source capacitance, gate-drain capacitance, output resistance of MOS transistor. Analytical results are compared with simulation results and the influences of circuit parameters on circuit linearity are discussed.