Miracle-dz/UniFAR-FTUs huggingface dataset:
Selecting Critical WiFi APs for Indoor Localization Based on a Theoretical Error Analysis

The radio map built during the offline phase of any WiFi fingerprint-based localization system usually scales with the number of WiFi access points (APs) that can be detected at a single location by any mobile device, but this number in practice can be as large as 100, only a few of which essentially contribute to localization. Simply involving all the APs in location fingerprints and thus in the radio map not only wastes excessive storage but also leads to a large computational overhead. In this paper, a theoretical analysis of WiFi-based location determination is conducted to investigate the resulting localization errors and reveals that some critical APs contribute significantly more to localization than the others, implying that it is unnecessary to include every AP in localization. Consequently, a heuristic AP selection algorithm based on the error analysis is proposed to efficiently select a subset of APs for use in localization. Finally, extensive experiments are carried out by using both the UJI dataset available online and the dataset collected in our laboratory, and it is shown that the proposed algorithm not only significantly reduces the redundancy of APs in WiFi fingerprint-based localization but also substantially improves the localization accuracy of the $k$ nearest neighbor (KNN) method.
Genome-Wide Scans and Transcriptomic Analyses Characterize Selective Changes as a Result of Chlorantraniliprole Resistance in Plutella xylostella

Pesticide resistance in insects is an example of adaptive evolution occurring in pest species and is driven by the artificial introduction of pesticides. The diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae), has evolved resistance to various insecticides. Understanding the genetic changes underpinning the resistance to pesticides is necessary for the implementation of pest control measures. We sequenced the genome of six resistant and six susceptible DBM individuals separately and inferred the genomic regions of greatest divergence between strains using FST and θπ. Among several genomic regions potentially related to insecticide resistance, CYP6B6-like was observed with significant divergence between the resistant and susceptible strains, with a missense mutation located near the substrate recognition site (SRS) and four SNPs in the promoter. To characterize the relative effects of directional selection via insecticide tolerance (‘strain’) as compared to acute exposure to insecticide (‘treatment’), four pairwise comparisons were carried out between libraries to determine the differentially expressed genes. Most resistance-related differentially expressed genes were identified from the comparison of the strains and enriched in pathways for exogenous detoxification including cytochrome P450 and the ABC transporter. Further confirmation came from the weighted gene co-expression network analysis, which indicated that genes in the significant module associated with chlorantraniliprole resistance were enriched in pathways for exogenous detoxification, and that CYP6B6-like represented a hub gene in the “darkred” module. Furthermore, RNAi knock-down of CYP6B6-like increases P. xylostella sensitivity to chlorantraniliprole. Our study thus provides a genetic foundation underlying selection for pesticide resistance and plausible mechanisms to explain fast evolved adaptation through genomic divergence and altered gene expression in insects.
Assignment of engineers to constructions project teams based on Person-Team Fit

Abstract The construction industry is project-oriented. The dynamic nature of the construction projects makes team deployment inevitable for responding to changing project needs. Thus, proper team selection is vital to achieving project objectives. Although many previous studies have remarked the importance of the provision of team chemistry, when it comes to practicality, the main emphasis has always been on the individuals’ competencies. Therefore, this gap is addressed by developing a two-step model based on the concept and principles of Person-Team fit, which considers two aspects for effective team selection; supplementary person team fit (SF) and complementary person team fit (CF). While CF can be achieved through the measurement of individuals’ competencies, SF is a function of team members’ preferences in working with their teammates. The model was applied in the selection of small teams in an industrial project. The results revealed that the proposed framework is capable to provide fitness between person and team. The aim of this research is to provide project managers with a new tool for team selection which simultaneously considers quality collaboration among team members and complementary support in individual competencies. Also, the findings suggest employee participation as a key step toward effective team selection.
Religiosity and subjective wellbeing of the elderly in Chile: a mediation analysis

ABSTRACT Aging raises several new challenges for the elderly, such as ensuring their wellbeing. Using a nationally representative sample, we studied the association between religiosity and the subjective wellbeing of the elderly in Chile, developing two possible mediation mechanisms for the role of social religiosity and private religiosity, respectively. Using linear regression models and statistical mediation analysis, we found that the association between attending religious services and satisfaction with life is mediated by social networks and the availability of support. While the relationship between praying and satisfaction was corroborated, the mediating effect of self-efficacy was not confirmed.
What aspects of historical understanding feature in the analysis of moving-image sources in the history classroom?

This paper reflects on aspects of historical understanding developed in a classroom in which moving-image sources are analysed. Considered as non-fictional representations of the past, moving-image sources comprised broadcast images of historical events on newsreels, news broadcasts and documentaries. The study, carried out in a Maltese state secondary school, involved students (aged 15/16 years) analysing moving images as historical sources in their history lessons. Various aspects of understanding were identified: making connections with media content; using knowledge of one topic to shape another; discussing forms of historical knowledge in relation to each other; connecting with the wider historical picture; and constructing meaning using various language strategies. It is argued that these aspects offer a characterization of historical understanding when analysing broadcast footage of historical events in a constructivist classroom. It is suggested that underlying these aspects was students’ prior historical knowledge. I highlight the importance of maximizing on opportunities provided by moving-image sources to support understanding, particularly the co-construction of knowledge.
Epidemiology of head and neck neoplasms: a review

Malignancy of the head and neck region has significant morbidity and mortality (6.5%) throughout the world. This includes malignancies arising from the epithelium of the upper aerodigestive tract as reported by Parkin. The International classification of diseases (ICD) is the standard diagnostic tool for epidemiology, health management and clinical purposes, and is used to monitor the incidence and prevalence of diseases including cancer. In the 9 revision of the ICD-9, the term head and neck cancer covers malignant neoplasm’s of the lip (ICD-140), tongue (ICD-141), gums (ICD-143), floor of the mouth (ICD-144), buccal and other unspecified parts of the mouth (ICD-145), oropharynx (ICD-146), hypopharynx (ICD148), larynx (ICD-161) and other head and neck sites (ICD-149), reported by Chen et al. Squamous cell carcinoma represents more than 95% of all head and neck cancers.
Antibacterial Activity of Lupinifolin from Derris reticulata and Its Effect on Cytoplasmic Membrane of Methicillin Resistant

Lupinifolin from Derris reticulata Craib. was extracted with hexane by Soxhlet extractor and purified by crystallization. The yellow needle-shaped lupinifolin crystals were identified and confirmed by nuclear magnetic resonance (NMR) spectra and Liquid chromatography mass spectrometry (LC/MS). The lupinifolin showed minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 8 and 16 μg/ml against Methicillin resistant S. aureus (MRSA), respectively. The flow cytometry (FCM) was performed to determine the alteration of cytoplasmic membrane (CM) permeability of MRSA by using Propidium iodide (PI) 5 μg/ml as an indicator for bacterial membrane integrity. It was found that the bacterial CM permeability was effected by lupinifolin with the MIC of 8 μg/ml comparable to the control when investigated by Propidium iodide intensity. Additionally, DNA laddering assay was carried out to evaluate apoptosis in bacterial cells. It was shown that the lupinifolin has no effect on DNA fragmentation.
Study on plasma CC chemokine ligand 2 level and its promoter region 2518A/G polymorphism in MS patients

The increase of CC chemokine ligand 2 (CCL2) is associated with multiple sclerosis (MS), but the relationship between gene promoter region 2518A/G and the pathogenesis of MS is still not obvious. Collected 54 cases of relapsing-remitting MS patients and 54 healthy controls. By detecting the CCL2-2518A/G polymorphism of MS patients and analyzing the plasma CCL2 level. High levels of A/A genotype and A allele frequency in serum CCL2 and PBMC were found in MS patients. The serum CCL2 of MS patients with A/A genotype is higher than other genotypes. Lipopolysaccharide stimulated PBMC, CCL2 levels in the supernatant of all genotypes were higher, and the A/A genotype levels of MS patients were the highest. Finally, CCL2-2518A/G polymorphism is related to the pathogenesis of MS.
Compact Solid-State Marx Generator for Repetitive Applications

The Marx generator plays a vital role in a pulsed power system. In this paper, a modified compact bipolar output pulse solid-state Marx generator topology is developed. A three-stage prototype is designed and tested, in which pulse width, polarity, and peak voltage of the output pulse are made variable. It is possible to generate either positive or negative pulses with less rise time. Various components which affect the repetitive frequency of the developed Marx generator are evaluated. Analysis reveals that the total time period TO is a function of capacitor charging time. This is been validated experimentally by operating the Marx generator for different pulse repetition frequencies. The type of charging method solely controls the charging time of the capacitor and hence the repetition frequency. Keywords-capacitor; monopolar topology; pulse repetitive frequency; bipolar topology; charging time; high voltage time; Hbridge circuit
Density functional theory study of HfCl4,ZrCl4, and Al(CH3)3 decomposition on hydroxylated SiO2: Initial stage of high-k atomic layer deposition

The initial stage of atomic layer deposition of HfO2, ZrO2, and Al2O3 high-k films, i.e., the decomposition of HfCl4, ZrCl4, and Al(CH3)3 precursor molecules on an OH-terminated SiO2 surface, is investigated within density functional theory. The energy barriers are determined using artificial activation of vibrational normal modes. For all precursors, reaction proceeds through the formation of intermediate complexes that have equivalent formation energies (∼−0.45 eV), and results in HCl and CH4 formation with activation energies of 0.88, 0.91, and 1.04 eV for Hf, Zr, and Al based precursors, respectively. The reaction product of Al(CH3)3 decomposition is found to be more stable (by −1.45 eV) than the chemisorbed intermediate complex compared to the endothermic decomposition of HfCl4 and ZrCl4 chemisorbed precursors (0.26 and 0.29 eV, respectively).
Prevalence of Germline Pathogenic and Likely Pathogenic Variants in Patients With Second Breast Cancers

Abstract Background Few studies have examined gene-specific associations with contralateral and/or second breast cancer (SBC). Methods The frequency of pathogenic and likely pathogenic (P/LP) variants in clinically actionable genes (BRCA1, BRCA2, PTEN, TP53, CHEK2, CDH1, ATM, PALB2, NBN, and NF1) was compared between women with a primary breast cancer (PBC) and SBC who underwent multigene panel testing at a single diagnostic testing laboratory. Race- and ethnicity-specific logistic regression burden tests adjusted for age at diagnosis of first breast cancer, histology, presence of first- or second-degree relatives with breast cancer, and prior testing for BRCA1/2 genes were used to test for associations with SBC. All statistical tests were 2-sided. Results The study was comprised of 75 550 women with PBC and 7728 with SBC. Median time between breast cancers for SBC was 11 (interquartile range = 6–17) years. Restricting to women tested for all actionable genes (n = 60 310), there were 4231 (7.8%) carriers of P/LP variants in actionable genes among the controls (PBC) compared with 652 (11.1%) women with SBC (P< .001). Among Caucasians, exclusive of Ashkenazi Jewish women, those carrying a P/LP variant in a clinically actionable gene were 1.44 (95% confidence interval [CI] = 1.30 to 1.60) times as likely to have SBC than noncarriers, after accounting for potential confounders. Among African American and Hispanic women, a P/LP variant in a clinically actionable gene was 1.88 (95% CI = 1.36 to 2.56) and 1.66 (9% CI = 1.02 to 2.58) times as likely to be associated with SBC, respectively (P < .001 and P = .03). Conclusion Women with P/LP variants in breast cancer predisposition genes are more likely to have SBC than noncarriers. Prospective studies are needed confirm these findings.
Circularly Polarized Wideband-to-Narrowband Switchable Antenna

This paper presents a circularly polarized printed wideband-to-narrowband switchable monopole antenna for UWB/WiMAX applications. The proposed switching antenna consists of circularly polarized monopole antenna for the UWB mode with two bandpass filters integrated into the feeding network for the two 3.5/5.5 GHz center frequencies narrowband modes. The proposed antenna is utilized to operate at triple modes; 7.3 GHz, 3.5 GHz, and 5.5 GHz with wide impedance bandwidth (117.6%, 16.7%, and 7.3%), wide axial ratio bandwidth (89.2%, 16.7%, and 7.3 %), and the gain reaches (6.91 dBi, 5.5 dBi, and 4.2 dBi).
Water Movement through Soil under Drip Irrigation using Different Hydraulic Soil Models

Drip irrigation is one of the conservative irrigation techniques since it implies supplying water directly on the soil through the emitter; it can supply water and fertilizer directly into the root zone. An equation to estimate the wetted area in unsaturated soil is taking into calculating the water absorption by roots is simulated numerically using HYDRUS (2D/3D) software. In this paper, HYDRUS comprises analytical types of the estimate of different soil hydraulic properties. Used one soil type, sandy loam, with three types of crops; (corn, tomato, and sweet sorghum), different drip discharge, different initial soil moisture content was assumed, and different time durations. The relative error for the different hydraulic soil models was calculated and was compared with the model of Brooks and Corey, 1964. There was good agreement compared with different models. The Root Mean Square Error (RMSE) was (0.23) cm, while the relative error (1%) and (1) for modeling efficiency (EF) for wetted radius, but wetted depth was RMSE (0.99) cm, and the relative error was (4.5%), and EF was (1).
Contexts and constructs: Implications for the testing of listening in pilots’ communication with air traffic controllers

The International Civil Aviation Organization (ICAO) published the Language Proficiency Requirements for pilots and air traffic controllers (ATCOs) in 2003. Research has shown that there is still a lack of clarity regarding what needs to be assessed in terms of the English used by pilots and ATCOs in radiotelephony (DOUGLAS, 2014; EMERY, 2014; KIM; BILLINGTON, 2016; KIM; ELDER, 2015; MONTEIRO, 2019; READ; KNOCH, 2009). The purpose of the present study was to investigate the nature of the listening tasks performed by pilots as an essential step in test development and validation. This explanatory sequential mixed-methods study (CRESWELL, 2015), elicited questionnaire responses from 156 pilots (Phase 1) and subsequently interviewed six aeronautical English experts (Phase 2) to better understand the characteristics of the listening tasks that pilots undertake during radiotelephony communications. Quantitative and qualitative data were analysed, and findings were merged. They provide information that may usefully inform the development of the listening test construct and the test specifications.
Effect of temperature fluctuation during frozen storage on beef quality

which create adverse effects on the meat stored in household freezers. Abstract This study investigated the effects of fluctuating temperature on the quality of frozen beef, which were preserved under three different temperature fluctuation ranges (wide temperature fluctuation −18 ± 2°C, medium temperature fluctuation −18 ± 1°C, and small temperature fluctuation −18 ± 0.5°C). Results showed that, with an increase of in small temperature fluctuation, the rate of thaw loss significantly increased, total volatile basic nitrogen value increased. However, these temperature fluctuations did not influence the beef color, TBARS value, and muscle fiber diameter. This indicated that, under a certain level, smaller temperature fluctuation had better preservation on frozen beef. on the quality of frozen beef preserved in
Governance and administrative process of the Light Rail Train project in Palembang, Indonesia

The paper investigates the governance and administrative process in the Palembang Light Rail Train (LRT) project in Indonesia and gives suggestions on the strategic development of the LRT project for creating a desakota technopole in Palembang. ,This paper adopts both STEEP (Social, Technological, Environmental, Economic, Political) analysis and desakota technopole theoretical framework. The STEEP analysis is used to explain the Palembang LRT project which is to meet one of the city’s high-tech urban transportation goals. The desakota technopole framework is used as a strategic urban planning guideline for the further development of Palembang. ,This paper has three findings. First, based on STEEP analysis, Palembang needs smart urban transportation, such as LRT, to solve the present and future traffic problems. Second, the governance and administrative process in the LRT project is mandated to national companies as part of a national government infrastructure policy financed over multiple years through the national budget. Third, it is critical for national, provincial, and local governments to adopt a desakota technopole framework strategy to meet long-term targets. ,This paper highlights Indonesia experience towards making a desakota technopole, using the Palembang LRT project policy as the key driver under investigation.
Lessons from entrepreneurial failure through vicarious learning

Abstract Despite its widespread occurrence, the topic of failure is barely addressed in entrepreneurship education. Consequently, students are given an incomplete and unrealistic picture of the complexity of being entrepreneurs. This study explores the pedagogical potential of introducing vicarious learning about failure in educational programs rather than focusing solely on starting, growing and success. Taking a qualitative approach, this study examined students’ reflective reports written after an interview with an entrepreneur on their experience of failure. Using concepts emerging from these reports and theoretical constructs, it was established whether and how students drew lessons and reflections from the failure stories. The findings show that interviewing and reflecting about the experiences of entrepreneurs allow for vicarious learning from failure, yet without students having to experience it themselves. The lessons learned and the reflections feed each other in a continuous loop. Students recognized that entrepreneurship involves trial and error instead of one straight road. Important lessons include the importance of adaptable behavior, access to key resources, insights in business development and the benefits of networking. Hence, this article contributes to the pedagogy of entrepreneurial education and provides initial suggestions for educators to introduce vicarious learning about failure as a topic in their programs.
Challenges in assessing the nature of effective collaboration in blended university courses

The ability to collaborate effectively face-to-face and online represents a critical skill for university graduates. However, there are still challenges regarding how to accurately assess this skill through traditional student learning measures. To better understand the nature of effective collaboration of university students in blended courses, the current study drew on the student approaches to learning framework and social network analysis techniques. We examined how student approaches to inquiry, approaches to online learning technologies, perceptions of the blended learning environment, different learning outcomes and configurations of collaboration are related. The methodologies commonly used in student approaches to learning research identified deep and surface approaches to inquiry and technologies, positive and negative perceptions of the integration of the learning environment, and of online workload, which also showed logical alignment with relatively better and poorer academic achievement in the course. Based on approaches, perceptions, and learning outcomes, students were divided into groups orientated towards understanding versus reproducing learning. The social network analysis techniques revealed features of different configurations of collaborations by different groups of students and their choices as to whether and with whom to collaborate during the learning process. Nuanced differences were found amongst different configurations of collaborations. Implications for practice or policy: When assessing student experience of collaboration, social network analysis techniques may be able to describe nuanced differences amongst different collaborative configurations. To encourage students’ collaboration, assessment tasks involving a large proportion of mandatory collaborative activities should be considered. To help student improve experience of collaboration, teachers may consider pairing students with a reproducing learning orientation with those having a deep disciplinary understanding.
Loose programming of GIS workflows with geo‐analytical concepts

Loose programming enables analysts to program with concepts instead of procedural code. Data transformations are left underspecified, leaving out procedural details and exploiting knowledge about the applicability of functions to data types. To synthesize workflows of high quality for a geo‐analytical task, the semantic type system needs to reflect knowledge of geographic information systems (GIS) at a level that is deep enough to capture geo‐analytical concepts and intentions, yet shallow enough to generalize over GIS implementations. Recently, core concepts of spatial information and related geo‐analytical concepts were proposed as a way to add the required abstraction level to current geodata models. The core concept data types (CCD) ontology is a semantic type system that can be used to constrain GIS functions for workflow synthesis. However, to date, it is unknown what gain in precision and workflow quality can be expected. In this article we synthesize workflows by annotating GIS tools with these types, specifying a range of common analytical tasks taken from an urban livability scenario. We measure the quality of automatically synthesized workflows against a benchmark generated from common data types. Results show that CCD concepts significantly improve the precision of workflow synthesis.