Miracle-dz/UniFAR-FTUs huggingface dataset:
Inverse analysis for damage detection in a rod using EMI method

Abstract The electro-mechanical impedance (EMI) method has been demonstrated to be a powerful tool to detect the small local damages in various engineering structures, due to its high-frequency vibration characteristics. However, this technique is difficult to accurately determine the degree and location of structural damages. In this paper, an inverse analysis combining the measured EMI signatures and the Transfer Matrix Method (TMM) is proposed to identify the damages in the steel rods. A milled groove is introduced into each steel specimen to simulate the local damage. By measuring the EMI signatures of the piezoelectric wafers bonded symmetrically on the upper and lower surfaces of the rectangular specimens respectively, the damage can be detected clearly, as well as natural frequencies being extracted in the relatively lower frequency range. The damage sizes and locations are further determined by connecting the frequency equations and any two measured natural frequencies. Tests on three samples show both damage sizes and locations are accurately detected, which indicates that the present method is quite feasible and effective for damage identification in the bar-type structures.
Does Default Pecking Order Impact Systemic Risk

In network models of systemic risk, the loss distribution of a distressed debtor among its creditors follows a pro-rata fashion. It is proportional to the loan granted to the debtor. Despite its simplicity, this assumption is unrealistic. In this study, we create a framework for the computation of the systemic risk assuming a heterogeneous pattern of loss distribution, the default pecking order. Distressed debtors employ some criterion (equity, out-degree, or loan extended) to rank the creditors they are willing to default on first. Applying this framework to an extensive Brazilian data set, we found out the adoption of the default pecking order increases significantly the systemic risk. The rise in the systemic risk brought by the heterogeneous distribution over the homogeneous case decreases with the level of the initial shock and is higher for small-sized agents. This result can be interpreted in the light of the dual role of the financial network, which can be a channel for both risk-sharing and shock propagation. We test this hypothesis by assessing the role of interconnectedness (as measured by the network density) in driving the systemic risk. The results corroborate this hypothesis. When the homogeneous loss distribution (which maximizes risk-sharing) is abandoned, the density has a positive impact on the systemic risk. It suggests in this case the financial network acts mainly as a channel for shock propagation rather than for risk-sharing.
Electronic tuning effects in the read microwave avalanche diode

Read's theory of the negative-resistance avalanche diode has been examined in detail for the small-signal case. The space-charge wave approach has been used in the analysis leading directly to a simple equivalent circuit and a general expression for the small-signal impedance which includes the significant design and operating parameters. The theory indicates that strong tuning effects will occur through variation of the dc avalanche current. This has been verified experimentally.
Management of sexual dysfunction following poorly healed episiotomy in a multipara in low-income setting

Background: Episiotomy describes an incision made on the perineum to widen the vaginal orifice so as to aid delivery of the baby. Though not routinely recommended, it is a common during delivery. Despite the intended positive outcomes, complications like sexual dysfunction, urinary incontinence, chronic pelvic pain, perineal infection do occur following it. When sexual dysfunction occurs as sequelae as a result of poor episiotomy repair technique or poor healing, it can affect sexual intercourse and lead to marital disharmony especially in societies that tend to lean towards patriarchy Case presentation: A 31-year-old Nigerian multiparous lady with three living children presented on account of complaints of lax introitus and lack of sexual satisfaction by the partner. She had poorly healed bilateral episiotomy scar following her last delivery. She has been practicing Kegel’s exercise with no improvement. There was associated threat to their relationship by her partner. Perineolasty and vaginoplasty was done. She had successful recovery and improvement in the quality of sex. Conclusion: This is a rare case of a woman in our clime visiting the clinic to request for perineal reconstruction following complaints by her partner and threat to their relationship. Obstetricians should pay attention to any complaint or worry following episiotomy and offer appropriate care to meet the sexuality needs of the parous following childbirth. Keywords: episiotomy; Kegel’s exercise; perineoplasty; vaginoplasty.
Application of a Drilling Simulator for Real-Time Drilling Hydraulics Training and Research

Challenging wells require an accurate hydraulic model to achieve maximum performance for drilling applications. This work was conducted with a simulator capable of recreating the actual drilling process, including on-the-fly adjustments of the drilling parameters. The paper focuses on the predictions of the drilling simulator's pressure losses inside the drill string and across the open-hole and casing annuli applying the most common rheological models. Comparison is then made with pressure losses from field data. Drilling data of vertical and deviated wells were acquired to recreate the actual drilling environment and wellbore design. Several sections with a variety of wellbore sizes were simulated in order to observe the response of the various rheological models. The simulator allows the input of wellbore and bottom-hole assembly (BHA) sizes, formation properties, drilling parameters, and drilling fluid properties. To assess the hydraulic model's performance during drilling, the user is required to input the drilling parameters based on field data and match the penetration rate. The resulting simulator hydraulic outputs are the equivalent circulation density (ECD) and standpipe pressure (SPP). The simulator's performance was assessed using separate simulations with different rheological models and compared with actual field data. Similarities, differences, and potential improvements were then reported. During the simulation, the most critical drilling parameters are displayed, emulating real-time measured values, combined with the pore pressure, wellbore pressure, and fracture pressure graphs. The simulation results show promise for application of real-time hydraulic operations. The simulated output parameters, ECD and SPP, have similar trends and values with the values from actual field data. The simulator's performance shows excellent matching for a simple BHA, with decreasing system's accuracy as the BHA design becomes more complex, an area of future improvement. The overall approach is valid for non-Newtonian drilling fluid pressure losses. The user can observe the output parameters, and by adding a benchmark safety value, the simulator gives a warning of a potential fracture of the formation or maximum pressure at the mud pumps. Thus, by simulating the drilling process, the user can be trained for the upcoming drilling campaign and reach the target depth safely and cost-effectively during actual drilling. The simulator allows emulation of real-time hydraulic operations when drilling vertical and directional wells, albeit with a simple BHA for the latter. The user can instantly observe the output results, which allows proper action to be taken if necessary. This is a step towards real-time hydraulic operations. The results also indicate that the simulator can be used as an excellent training tool for professionals and students by creating wellbore exercises that can cover different operating scenarios.
Evaluating the Seismic Behavior of Segmental Unbounded Posttensioned Concrete Bridge Piers Using Factorial Analysis

AbstractSegmental unbounded posttensioned concrete bridge piers can resist large lateral drifts and eliminate residual deformation during an earthquake. The seismic behavior of posttensioned bridge piers depends on several factors, including concrete strength, posttensioning (PT) force, aspect ratio, and axial-load ratio. This study investigated the effects of these factors and their interactions on the seismic behavior of such piers, which are not adequately addressed in the existing literature. Here, finite-element models of unbounded posttensioned concrete piers were generated to perform a parametric study. These models were first validated with experimental results and then used to predict the seismic behavior of unbounded posttensioned concrete piers. At the initial stage, full factorial analysis was performed by considering the following three factors: PT level, PT ratio, and concrete strength. The results indicate that none of them in combination resulted negatively on pier yielding capacity and po.
What do codes of ethics tell us about impartiality, and what is preferred at the hospital?

The impartiality of the interpreter has long been an important aspect of and an indispensable quality in healthcare interpreting. Official documents on professional ethics created by professional associations around the world refer to impartiality among the fundamental ethical principles to be adhered to. However, the conditions in the workplace and the background of the interpreter might pose significant risks to ensuring the implementation and adoption of ethics in the field. Furthermore, specific conditions of immigration and the quality (or the existence) of interpreter training in the required language combinations may play a role in either facilitating or impeding the implementation of ethical principles. As a country that has been receiving migrants for a relatively short time, Turkey lacks a code of ethics specifically drawn up for healthcare (or community) interpreters and this may well lead to problems in the field. Therefore, the primary objective of this study is to compare healthcare interpreters’ understanding of, preference for and exercise of impartiality with the prescripts of the codes applicable in other countries and to demonstrate how the principle of impartiality unfolds in healthcare contexts. The results of the study demonstrate that helping the patient was the main motivation of the interpreters in the field rather than being guided purely by impartiality. They reported being deliberately on the patient’s side to support them and to ensure that they obtained the required treatment, an approach which contradicts the codes of the associations in the countries that prefer “interpreting” rather than “mediation”. The analysis pointed to the fact that the meaning of impartiality is shaped by the system in which it is laid down. These results suggest that the codes and the attitudes of healthcare interpreters do not coincide as regards impartiality in a country where healthcare interpreting research and practice are emerging and training opportunities are scarce. They can serve as a useful reference point for policymaking and the professionalization of healthcare interpreters.
Testing Accuracy of Land Cover Classification Algorithms in the Qilian Mountains Based on GEE Cloud Platform

The Qilian Mountains (QLM) are an important ecological barrier in western China. High-precision land cover data products are the basic data for accurately detecting and evaluating the ecological service functions of the QLM. In order to study the land cover in the QLM and performance of different remote sensing classification algorithms for land cover mapping based on the Google Earth Engine (GEE) cloud platform, the higher spatial resolution remote sensing images of Sentinel-1 and Sentinel-2; digital elevation data; and three remote sensing classification algorithms, including the support vector machine (SVM), the classification regression tree (CART), and the random forest (RF) algorithms, were used to perform supervised classification of Sentinel-2 images of the QLM. Furthermore, the results obtained from the classification process were compared and analyzed by using different remote sensing classification algorithms and feature-variable combinations. The results indicated that: (1) the accuracy of the classification results acquired by using different remote sensing classification algorithms were different, and the RF had the highest classification accuracy, followed by the CART and the SVM; (2) the different feature variable combinations had different effects on the overall accuracy (OA) of the classification results and the performance of the identification and classification of the different land cover types; and (3) compared with the existing land cover products for the QLM, the land cover maps obtained in this study had a higher spatial resolution and overall accuracy.
A direct torque controlled interior permanent magnet synchronous motor drive incorporating field weakening

This paper presents a new control scheme for the wide speed range operation of interior permanent magnet synchronous motor (PMSM) drives, where both torque and stator flux linkage are directly controlled. The proposed scheme possesses some attractive features when compared to conventional current controlled drives. Current controllers followed by PWM or hysteresis comparators and coordinate transformation are not used. This eliminates the delays through these networks and offers the possibility of dispensing with the rotor position sensor for the electronic commutator, if the initial rotor position is known only approximately. The scheme incorporates all the usual control regimes such as the maximum torque per ampere operation in constant torque region, the flux weakening region, and operates the drive within the voltage and current limits of the motor/inverter. The control scheme has been verified by simulation and experimental tests with a prototype interior magnet motor. This paper describes the scheme in detail, followed by results of its implementation.
Running Away with the Pokémon Go Gang: Three Consumption Needs

ABSTRACT Pokémon Go, the study case of the current research, is one of the most popular augmented reality games today. The importance of the study lies in characterizing Pokémon Go players according to demographic groups and their motivations for playing AR games. The data were collected via a web-based survey open for Pokémon Go Players, who currently play or had recently played Pokémon Go all over Israel. The data were collected via a web-based survey which was distributed in Pokémon GO forums and was answered by 488 players. (N = 488, male = 67%, female = 33%, age mean 25.05, age SD = 8, age range = 14–73) with diverse demographic characteristics in order to understand their activity in relation to Yee’s model of motivationsand while relying on the motivational questionnaire for MOGQ network games. It was found that there are more Pokémon Go players among young, secular men from central Israel, who are highly educated and possess middle-income and above. It was found that Pokémon Go provides players with a number of needs: Escapism, the central and leading motive; Achievement; and Relationships. In light of these results, it is evident that Pokémon Go provides added value to players. In the future, this technology will probably be assimilated into additional games and bridge social gaps, providing significant added value to the rest of society by satisfying various needs.
Risk Factor Analysis for Central Lymph Node Metastasis in Papillary Thyroid Microcarcinoma

Purpose Although the prognosis of papillary thyroid microcarcinoma (PTMC) is excellent, cervical lymph node metastasis (CLNM) is commonly observed in PTMC. This study aimed to investigate the incidence and risk factors for CLNM in PTMC. Patients and Methods Altogether, 687 patients with PTMC who initially underwent unilateral thyroidectomy with unilateral central lymph node dissection or bilateral thyroidectomy with bilateral central lymph node dissection between January 2014 and June 2018 at our hospital were included. The patients were divided into two groups: PTMC with CLNM and PTMC with no CLNM. The clinicopathologic characteristics and ultrasound features were compared between the groups. Univariate and multivariate logistic regression analyses were used to identify the risk factors for CLNM. Results CLNM was observed in 121/687 (17.6%) patients with PTMC. PTMC patients aged <55 years exhibited a greater incidence of CLNM (87.6% vs 12.4%) than those aged ≥55 years. PTMC patients with CLNM were more likely to have capsular extension (24.0% vs 15.4%) and extension to the adjacent structures (9.9% vs 4.2%). Patients with microcalcification on ultrasound images were more likely to have CLNM (66.1% vs 47.9%). Multivariate logistic regression analysis revealed that microcalcification (odds ratio [OR]: 2.066, 95% confidence interval [CI]: 1.361–3.135, P<0.001), age <55 years (OR: 2.341, 95% CI: 1.309–4.187, P=0.004), capsular invasion (OR: 1.772, 95% CI: 1.082–2.879, P=0.023), and invasion of the adjacent tissues (OR: 2.872, 95% CI: 1.355–4.187, P=0.004) were significant risk factors for CLNM. Conclusion Microcalcification, age <55 years, capsular invasion, and invasion of the adjacent tissues were significant risk factors for CLNM in PTMC.
Risk homeostasis theory and traffic accidents: propositions, deductions and discussion of dissension in recent reactions

Abstract There is abundant evidence showing that technological innovations have led to major reductions in the accident loss per unit distance of mobility, in certain road sections, on certain roads as well as in the road network as a whole. However, the accident loss per time unit of road-user exposure and per head of population have not shown equally favourable downward trends. In order to explain this contrast, as well as many other findings regarding road-user behaviour, the theory of risk homeostasis (RHT) has been put forward. This posits that accident loss per capita and road-user behaviour are mutually related in a closed-loop regulation process, with the level of preferred risk as the controlling variable outsidethe closed loop. There is evidence also that the per capita traffic accidents can be reduced by motivational interventionsthat are effective in lowering road users' preferred level of accident risk. RHT has received support as well as opposition from other researchers. The purpose of the .
Systematic Review of Breast-Q: A Tool to Evaluate Post-Mastectomy Breast Reconstruction

Purpose The aim of this systematic review is to update and synthesize new evidence on BREAST-Q questionnaire’s ability to reflect patient-reported outcomes in women who have undergone breast reconstruction surgery (BRS) following mastectomy. Methods PubMed, Science Direct, Google Scholar, Cochrane CENTRAL, and Clincaltrial.gov were searched for relevant studies from January 2009 to September 2021. Any interventional or observational studies that used BREAST-Q to assess patient-reported outcomes in the assessment of BRS following mastectomy were included. Results A total of 42 studies were eligible for inclusion in the review. Three were randomized controlled trials and 39 were observational studies. Compared with pre-operative scores, there was an improvement in all BREAST-Q outcome domains following BRS including ‘satisfaction with breasts’, “satisfaction with outcome” “psychosocial”, “physical”, and “sexual wellbeing”. Sexual well-being had the lowest BREAST-Q score both pre-and post-operatively (37.8–80.0 and 39.0–78.0, respectively). Autologous BRS reports higher satisfaction and overall wellbeing compared to implant-based BRS. BREAST-Q has a higher and narrow internal consistency of 0.81 to 0.96 compared with other patient-reported outcome measures (PROMs; EORTC-QLQ, FACT-B, BR-23, BCTOS). The BREAST-Q questionnaire is the only PROM which allows patients to reflect on their care, surgical outcomes, and satisfaction collectively. Conclusion This review highlights the fact that BREAST-Q can effectively and reliably measure satisfaction and wellbeing of breast cancer patients after BRS. Comparatively, sexual wellbeing shows poorer outcomes following BRS and more longitudinal studies are necessary to understand the basis for these findings. Compared to other PROMs, BREAST-Q is reliable and specific to breast cancer surgery. Overall, BREAST-Q can help clinicians improve their quality of service, understand patient experiences, and may be used as an auditing tool for surgical outcomes.
Association of dietary patterns and components with atherosclerosis risk biomarkers in familial hypercholesterolemia

Purpose of review Familial hypercholesterolemia (FH) is a relatively common genetic disorder associated with elevated atherosclerotic risk. Dietary interventions can modulate processes associated with cardiovascular risk and potentiate the impact of pharmacological lipid-lowering therapies. This review evaluates recent findings of dietary patterns and their components on risk biomarkers in people with FH. Recent findings Diets lower in saturated fatty acids (SFA) may reduce low-density lipoprotein-cholesterol (LDL-C); however, their effects seem to be modest. A Mediterranean style diet apparently exerts more robust effects on plasma LDL-C, apolipoprotein B and C reactive protein concentrations than one restricted in SFA. Supplementation of plant sterols and stanols reduces LDL-C especially in children with FH. Caloric restricted diets may reduce weight and improve triglyceride levels in individuals with FH and excess body weight. Summary Despite the strong impact of genetic variants, dietary patterns mostly low in SFA and especially the Mediterranean diet may influence risk biomarkers in FH. However, most available studies are limited by cross-sectional design, small number of study subjects and short-term follow-ups. Robust interventional studies are necessary to test the impact of dietary patterns in people with FH.