Miracle-dz/UniFAR-FTUs huggingface dataset:
A real‐time quadrotor trajectory planning framework based on B‐spline and nonuniform kinodynamic search

Autonomous navigation of quadrotor is required by many application scenarios, such as exploration, search, and rescue. The trajectory planning algorithm is the core of autonomous navigation, which can undoubtedly greatly enhance the safety of flight. In this paper, a trajectory planning framework based on B‐spline and kinodynamic search is proposed. This framework can be used for a limited‐sensing quadrotor to plan safe and dynamically feasible trajectories in unknown environments, and the flight is safe and effective along with these trajectories. First, a B‐spline based nonuniform kinodynamic (BNUK) search algorithm is proposed to generate dynamically feasible trajectories efficiently. The characteristics of nonuniform search make the generated trajectories safe and reasonable time‐allocation. Then, a trajectory optimization method based on control point optimization is proposed. The trajectory generated by BNUK is further optimized by solving a quadratically constrained quadratic programming problem. The smoothness of the trajectory is improved, and the control cost is reduced. Extensive analysis and comparative simulation experiments verify the advancedness of the proposed framework. We also integrated it into a vision‐based quadrotor autonomous navigation system, and multiple outdoor flight experiments show the effectiveness of the proposed framework.
Analysis of Factors Determining Islamic Motivation Entrepreneuship of Muslim Women Entrepreneurs in Jakarta.

The purpose of this study was to analyze the influence of Islamic Leadership on Islamic Motivation Entrepreneurship and the indirect effect of Islamic Leadership on Performance Islamic Business with Islamic Motivation Entrepreneurship as a mediating variable for Muslim women entrepreneurs in Jakarta. The research method used is the quantitative method. Research respondents are IWAPI Muslim women entrepreneurs in Jakarta with a sample size of 354 Muslim entrepreneurs. The sample is nonprobability sampling by using purposive sampling. Data is collected using questionnaires and methods analyzed by using Structural Equation Model (SEM). The results showed that there was an influence of Islamic Leader on Islamic Business Performance either directly or indirectly through Islamic Motivation Entrepreneurship as mediation. Furthermore, there is a positive influence of Islamic Leadership on Islamic Motivation Entrepreneurship; and there is a positive influence of Islamic Motivation Entrepreneurship on Islamic Business Performance.
Denmark and COVID-19

COVID-19 has set numerous challenges to the economies worldwide having caused an unprecedented health related and economic crisis. National governments worldwide have been faced with countless adamant policy problems related to how to safeguard their peoples throughout the COVID-19 crisis and deal successfully with the negative economic impacts coming from measures taken to safe human lives and limit the spread of the coronavirus. Taking the case of Denmark in focus, this article addresses a number of important issues related to the specificity of the country socio-economic characteristics, the challenges set to the country by COVID-19 and the corresponding impact on the Danish economy. Moreover, attention is paid to the measures implemented by the national government to limit the negative impact on Danes by COVID-19, the specifics of the Danish labour market during the crisis, also how the crisis and the government measures impacted the household consumption in Denmark, the way in which Danish firms, operating abroad, have dealt with the challenges of COVID-19 taking the example of China as a host destination to Danish subsidiaries, among other relevant issues.
Insecure messaging: how clinicians approach potentially problematic messages from patients

Abstract Objective Secure messaging has become an integrated function of patient portals, but misuse of secure messaging by both patients and clinicians can lead to miscommunication and errors, such as overlooked urgent messages. We sought to uncover variations in clinician approaches and responses to messaging with patients. Methods In this two-part study, 20 primary care clinicians (1) composed message responses to five hypothetical patient vignettes and messages and (2) were subsequently interviewed for their perspectives on appropriate circumstances for secure messaging. Messages and interviews were analyzed for themes. Results Clinicians have different experiences with, and perceptions of, secure messaging. The messages the clinicians wrote were uniformly respectful, but differed in degrees of patient-centeredness and level of detail. None of the clinicians found their messaging workload to be unmanageable. From the interviews, we found divergent clinician perspectives about when to use secure messaging and how to respond to emotional content. Conclusion Clinicians have different opinions about the appropriateness of secure messaging in response to specific medical issues. Our results noted a desire and need for greater guidance about secure messaging. This aspect of informatics education warrants greater attention in clinical practice. Practical implications We summarize the types of issues raised by the participants yet to be addressed by existing guidelines. Further guidance from hospitals, professional societies, and other institutions that govern clinician behavior on the appropriateness and effectiveness of delivering care through secure messaging may aid clinicians and patients.
An Investigation into Incidences of Microbial Contamination in Cosmeceuticals in the UAE: Imbalances between Preservation and Microbial Contamination

In recent years, concern about certain personal care products and cosmetics suffering from microbial contamination has increased. In this research, we aimed to determine the types and incidence of the most common microorganisms found in unopened/unused personal care and cosmetic products in the United Arab Emirates (UAE) market. This research involved an analysis of 100 personal care products and cosmetics. For every product, microbial (Candida albicans, Staphylococcusaureus, aerobic mesophilic bacteria, Escherichia coli, yeast and mold, and Pseudomonas aeruginosa) contamination was assessed, and levels were compared with the guidelines used in Europe. Of the total samples, 15% (95% CI: 0.79–22.1) were contaminated by aerobic mesophilic bacteria compared to the maximum microbial limit of 1000 CFU/g. In addition, 13% (95% CI: 0.63–19.7) of the samples were contaminated with yeast and mold compared to the maximum microbial limit of 1000 CFU/g. Of all samples, nine (9%) were contaminated with both aerobic mesophilic bacteria and yeast and mold. However, none of the tested samples were contaminated with Escherichia coli, Staphylococcus aureus, Candida albicans, or Pseudomonas aeruginosa. Manufacturers of cosmetics and personal care products should be developing and implementing best practices regarding quality control/quality assurance in partnership with government regulators. Additionally, there should be greater control of the quality and safety of this type of product regarding good manufacturing practice (GMP), regulation, research, education, and the reporting of adverse events.
Stabilization of Ferromagnetic States by Electron Doping in Fe-, Co- or Ni-Doped ZnO

Detailed guidelines for controlling magnetic states in ZnO-based diluted magnetic semiconductors are given based on ab initio electronic structure calculations within the local spin density approximation using the Korringa-Kohn-Rostoker method. Effects of disorder were taken into account by the coherent potential approximation. It was found that the ferromagnetic state was stabilized by electron doping in the case of Fe-, Co- or Ni-doped ZnO. From the view point of practical applications, it is possible to realize a high-Curie-temperature ferromagnet, because n-type ZnO is easily available.
The crystal structure of 2-(2-methoxyphenyl)acetic acid, C9H10O3

Abstract C9H10O3, orthorhombic, Pbca (no. 61), a = 14.2570(6) Å, b = 7.9250(4) Å, c = 29.8796(13) Å, V = 3376.0(3) Å3, Z = 16, Rgt(F) = 0.0404, wRref(F2) = 0.1050, T = 200 K.
Study on the Stability of a Transition Section from Soft to Hard Surrounding Rock Based on the Solid-Fluid Coupling Effect

To study the stability of a transition section of a tunnel from soft to hard surrounding rock under seepage conditions, FLAC3D software was used to numerically simulate the transition section of the Laomushan Tunnel from the Shiqian to Yuping (Dalong) Expressways in Guizhou Province, China, and to explore different working conditions. The characterization of the tunnel seepage field, stress field, and displacement field and the analysis of the force of the primary lining support structure describe the influence of the seepage field on the stress field distribution and displacement field changes. The reliability of the calculation results is verified by comparison with displacement measurements collected during field monitoring. The design values of the primary support structure parameters of the transition section from soft to hard surrounding rock of the Laomushan Tunnel basically met the strength requirements. The research results provide references for the design and construction of similar projects.
Changing the rotational direction of a wind turbine under veering inflow: a parameter study

Abstract. All current-day wind-turbine blades rotate in clockwise direction as seen from an upstream perspective. The choice of the rotational direction impacts the wake if the wind profile changes direction with height. Here, we investigate the respective wakes for veering and backing winds in both hemispheres by means of large-eddy simulations. We quantify the sensitivity of the wake to the strength of the wind veer, the wind speed, and the rotational frequency of the rotor in the Northern Hemisphere. A veering wind in combination with counterclockwise-rotating blades results in a larger streamwise velocity output, a larger spanwise wake width, and a larger wake deflection angle at the same downwind distance in comparison to a clockwise-rotating turbine in the Northern Hemisphere. In the Southern Hemisphere, the same wake characteristics occur if the turbine rotates counterclockwise. These downwind differences in the wake result from the amplification or weakening or reversion of the spanwise wind component due to the effect of the superimposed vortex of the rotor rotation on the inflow's shear. An increase in the directional shear or the rotational frequency of the rotor under veering wind conditions increases the difference in the spanwise wake width and the wake deflection angle between clockwise- and counterclockwise-rotating actuators, whereas the wind speed lacks a significant impact.
Residential Satisfaction: A Narrative Literature Review Towards Identification of Core Determinants and Indicators

ABSTRACT The present study aims at reviewing Residential Satisfaction (RS) from both theoretical and empirical points of view. Various theories from different fields underpin RS and empirical studies on RS also indicate different determinants; however, there is a paucity of research on reviewing RS studies, identifying the roots of its theories and categorizing RS empirical studies into core determinants. Therefore, the main research questions are: which theories support RS and what are RS determinants and indicators? To answer these questions, valid RS-related studies were extracted using the search strategy and after applying the inclusion and exclusion criteria, 107 studies were selected for the final review. Besides, the findings of RS studies were structured into four determinants, namely urban policy and planning, design principles, social milieu and residents’ attributes. This review provides fresh insights into RS interdisciplinary aspects and the concept of residential dissatisfaction, and offers useful suggestions for future research.
The dark side of personal response systems (PRSs): Boredom, feedback, perceived learning, learning satisfaction

Abstract In the context of the use of personal response systems (PRSs) in the classroom, the two main motivations of the study were to investigate whether boredom with the devices decreased students’ perceived learning and learning satisfaction, and whether teachers’ provision of feedback moderated these negative effects. A survey was conducted among 172 business undergraduate students at a local university in Hong Kong. Descriptive statistics and regression analyses were used to analyze the data. Results indicated that perceived learning mediated the relationship between boredom and learning satisfaction. This study found that the negative relationship between boredom with PRSs and learning satisfaction was weaker when teachers provided higher levels of feedback. A key managerial implication for academic educators was that teachers could develop better learning experience to students by providing high quality feedback in PRSs context.
A comparison of a united atom and an explicit atom model in simulations of polymethylene

We have carried out stochastic dynamics and molecular dynamics simulations of n‐tridecane (C13H28) as isolated chains, in bulk melts, and in confined melts between solid surfaces, employing both a united atom (UA) model and an explicit atom (EA) model, in order to compare chain conformations, packing, orientational correlations, and self‐diffusion predicted by the UA and EA models. The EA model, which explicitly takes into account all hydrogens, exhibits nearly identical results for chain conformations to those from the UA model. However, only the EA model, which shows considerably enhanced interchain packing and orientational correlations in the melts over those for the UA model, reproduces very closely the height and the width of the interchain peak in the experimental x‐ray scattering profile. Dynamically, inclusion of explicit hydrogens decreases the self‐diffusion constants in the melts by a factor of 6–8, resulting in reasonably good agreement with the experimental value. Moreover, in the melts conf.
Trauma-Informed Care Groups With Incarcerated Women: An Alternative Treatment Design Comparing Seeking Safety and STAIR

Objective: Almost all incarcerated women have experienced at least one traumatic event in their lifetime. This study evaluates the utility of two trauma-informed care groups for incarcerated women—Seeking Safety and STAIR—by determining whether they improve coping self-efficacy, anxiety, depression, and posttraumatic stress disorder (PTSD). Method: Using an alternative treatment design, we evaluated two cognitive behavioral-based trauma-informed care groups with incarcerated women. Anxiety, depression, PTSD, and coping self-efficacy were assessed with outcome measures at pretest and posttest. Results: Repeated measures ANOVA indicated that incarcerated women who participated in Seeking Safety or STAIR showed statistically significant improvements in anxiety (F[1,45]=27.27, p<.001, η2=.377), depression (F[1,45]=24.93, p<.001, η2=.356), PTSD (F[1,45]=27.34, p<.001, η2=.378), and coping self-efficacy (F[1,45]=14.93, p<.001, η2=.245). We found Seeking Safety to be more effective than STAIR in helping participants improve their coping self-efficacy. Conclusion: These trauma-informed programs improved incarcerated women’s mental health problems and coping self-efficacy. Results indicate the importance of screening for trauma among incarcerated women and offering programming to address trauma and related issues before release.
Lockdown Lives: A Longitudinal Study of Inter-Relationships Among Feelings of Loneliness, Social Contacts, and Solidarity During the COVID-19 Lockdown in Early 2020

We examine how social contacts and feelings of solidarity shape experiences of loneliness during the COVID-19 lockdown in early 2020. From the PsyCorona database, we obtained longitudinal data from 23 countries, collected between March and May 2020. The results demonstrated that although online contacts help to reduce feelings of loneliness, people who feel more lonely are less likely to use that strategy. Solidarity played only a small role in shaping feelings of loneliness during lockdown. Thus, it seems we must look beyond the current focus on online contact and solidarity to help people address feelings of loneliness during lockdown. Finally, online contacts did not function as a substitute for face-to-face contacts outside the home—in fact, more frequent online contact in earlier weeks predicted more frequent face-to-face contacts in later weeks. As such, this work provides relevant insights into how individuals manage the impact of restrictions on their social lives.
Influence of Characteristics of Metropolitan Areas on the Logistics Sprawl: A Case Study for Metropolitan Areas of the State of Paraná (Brazil)

The concentration of warehouses in peripheral regions of metropolitan areas in a time period is called logistics sprawl (LS). Identifying this phenomenon could help to reduce externalities related to urban freight transport, mainly, the distance traveled. This paper examines the contribution of the characteristics of metropolitan areas on the logistics sprawl indicator. A case study was carried out considering data from eight metropolitan areas of the state of Parana (Brazil). The research method is based on the data collection procedure proposed, centrographic method, and linear regression. The results of the centrographic method reveal a positive LS in four metropolitan areas and a negative LS in three metropolitan areas. In general, the warehouses are close to the highways that cross the metropolitan area. In addition, the size of the metropolitan area has a negative relationship with the number of warehouses and the logistics sprawl indicator. The findings highlight the importance of public policies relating to urban freight transport and land use at a metropolitan level.
ACCEPTED AUTHOR VERSION OF THE MANUSCRIPT: Genome-wide selection of discriminant SNP markers for breed assignment in indigenous sheep breeds

The assignment of an individual to the true population of origin is one of the most important applications of genomic data for practical use in animal breeding. The aim of this study was to develop a statistical method and then, to identify the minimum number of informative SNP markers from high-throughput genotyping data that would be able to trace the true breed of unknown samples in indigenous sheep breeds. The total numbers of 217 animals were genotyped using Illumina OvineSNP50K BeadChip in Zel, Lori-Bakhtiari, Afshari, Moqani, Qezel and a wild-type Iranian sheep breed. After SNP quality check, the principal component analysis (PCA) was used to determine how the animals allocated to the groups using all genotyped markers. The results revealed that the first principal component (PC 1 ) separated out the two domestic and wild sheep breeds, and all domestic breeds were separated from each other for PC 2 . The genetic distance between different breeds was calculated using F ST and Reynold methods and the results showed that the breeds were well differentiated. A statistical method was developed using the stepwise discriminant analysis (SDA) and the linear discriminant analysis (LDA) to reduce the number of SNPs for discriminating 6 different Iranian sheep populations and K-fold cross-validation technique was employed to evaluate the potential of a selected subset of SNPs in assignment success rate. The procedure selected reduced pools of markers into 201 SNPs that were able to exactly discriminate all sheep populations with 100% accuracy. Moreover, a discriminate analysis of principal components (DAPC) developed using 201 linearly independent SNPs revealed that these markers were able to assign all individuals into true breed. Finally, these 201 identified SNPs were successfully used in an independent out-group breed consisting 96 samples of Baluchi sheep breed and the results indicated that these markers are able to correctly allocate all unknown samples to true population of origin. In general, the results of this study indicated that the combined use of the SDA and LDA techniques represents an efficient strategy for selecting a reduced pool of highly discriminant markers.
Investigation of Particle Steering for Different Cylindrical Permanent Magnets in Magnetic Drug Targeting

Magnetic Drug Targeting is a promising cancer treatment that offers the possibility of increasing therapeutic efficiency while reducing the patient’s side-effects. Thereby, the cancer-drug is bounded to magnetic nanoparticles, which are injected into a vessel and guided through the cardiovascular system into the tumor by an external magnetic field. However, a successful navigation depends on several multiphysical parameters including the properties of the nanoparticles, the flow characteristics of blood, and the gradient of the applied magnetic field. To investigate their impact, the propagation of particle packets within a 45∘ bifurcation vessel was modeled in COMSOL Multiphysics®. Therefore, magnets with varying radius-to-length ratios and magnetizations (radial and axial) were placed right before the bifurcation. Furthermore, different fluid velocities in addition to the influence of the gravitational force were evaluated. Overall, a strong dependency of the particle steering on the fluid velocity and the magnet’s radius-to-length ratio was observed. Moreover, a radial magnetization has a greater impact on the particle propagation, while the gravitation can be neglected for higher velocities. However, when a single permanent magnet is used, the results depict that it is a fine line between deflecting or trapping a particle at the vessel wall.
Arsenic speciation by liquid chromatography coupled with ionspray tandem mass spectrometry

Ionspray mass spectrometry, a well established organic analysis technique, has been coupled to high-performance liquid chromatography for speciation of organic arsenic compounds. The ionspray source and differentially pumped interface of the mass spectrometer were operated in dual modes for elemental and molecular analysis. Tandem mass spectrometry was employed to increase selectivity. Dual mode detection was applied to demonstrate the utility of the technique for analysis of nine organoarsenic standards, including four dimethylarsinylriboside derivatives (arsenosugars). Structural fragmentation patterns showing molecular dissociation through an expected common product ion were obtained for the four arsenosugars. Molecular mode detection was utilized for qualitative verification of speciation analysis by high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry of organoarsenicals in plaice and for analysis of an arsenosugar in extracts of oyster and mussel.