Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of a Wake-Up Task-Based Mobile Alarm App

The latest mobile alarm apps provide wake-up tasks (e.g., solving math problems) to dismiss the alarm, and many users willingly accept such an inconvenience in return for successfully waking up on time. However, there have been no studies that investigate how the wake-up tasks are used and their effects from a human–computer interaction perspective. This study aims to deepen our understanding of how users engage and utilize the task-based alarm app by (1) examining the characteristics of different wake-up tasks and (2) extracting usage factors of hard tasks which involve physical or cognitive task loads over a certain level. We developed and deployed Alarmy, which is a task-based mobile alarm app with four wake-up task features: touching a button, taking a picture, shaking the device, and solving math problems. We collected 42.9 million in situ usage data from 211,273 US users for five months. Their alarm app usage behaviors were measured in two folds: eight alarm-set variables and five alarm-dismiss variables. Our statistical test results reveal the significant differences in alarm usage behaviors depending on the wake-up task, and the multiple regression analysis results show key usage patterns that affect the frequent uses of hard tasks, which are late alarm hours, many snoozes, and relatively more use on weekends. Our study results provide theoretical implications on behavior change as well as practical implications for designing task-based mobile alarm.
Diseño de un amplificador de potencia Clase-E de banda ancha usando filtros en las redes de adaptación

En este trabajo se presenta un metodo para el diseno de un amplificador de potencia de alta eficiencia Clase-E para banda ancha usando una topologia de filtro pasa-bajos de un orden elevado. Se realiza un estudio del estado del arte referente al diseno de un amplificador de potencia Clase-E que opere dentro de la banda de frecuencias de 0.8 GHz a 1.5 GHz. En el diseno se garantiza acordemente la atenuacion de la potencia del segundo y tercer armonico, criterio fundamental para lograr amplificacion con alta eficiencia. Las ecuaciones de diseno y la simulacion fueron realizadas en AWR Design Environment 2010. Los niveles de eficiencia alcanzada fueron de 74%, la eficiencia de potencia anadida (PAE) 72%, la ganancia de potencia fue superior a los 8 dB en toda la banda, se alcanzo un ancho de banda de 665 MHz, 60.8% de la banda, con una eficiencia de drenador y PAE por encima del 50%.
Acute stress assessment using infrared thermography in fattening rabbits reacting to handling under winter and summer conditions

Aim of study: This study assesses acute stress by measuring, through infrared thermography in summer and winter, the temperature of the eye, outer ear, inner ear and nose in 40 fattening rabbits before and after handling.Area of study: Seville (Spain). Material and methods: Body thermographic temperatures were recorded during a 38-day fattening period twice weekly and twice a day, before and after the handler held the rabbits in their arms for one minute. Ambient temperature and relative humidity were also recorded, and their influence on body temperatures was assessed. For each anatomical part, the variation of the temperature between the handled and undisturbed rabbit, and the differential temperature between the anatomical part in the undisturbed rabbit and the ambient temperature were calculated.Main results: The variation in temperatures between handled and undisturbed rabbits ranged from 0.25±0.041 ºC for eye to 3.09±0.221 ºC for outer ear in summer and -0.41±0.182 ºC for nose to 2.09±0.178 ºC for outer ear in winter. The day of the fattening period influenced all the temperature traits during summer and winter, except for the inner ear in winter. In summer, unlike winter, the temperature variation at the end of fattening period between handled and undisturbed rabbits was lower than at weaning (-0.04 to 1.94 ºC vs. 0.54 to 5.52 ºC, respectively). The temperatures in undisturbed rabbits were correlated with ambient temperature.Research highlights: Measuring body temperature with infrared thermography is a useful tool to evaluate acute stress in handled rabbits, with the inner ear and eye the most reliable body parts for measuring it.
Fracture behavior of metakaolin‐based geopolymer reinforced with carbon nanofibers

We investigate the fracture response of metakaolin-based geopolymer reinforced with 0.1 wt%, 0.2 wt%, and 0.5 wt% carbon nanofibers. We measure the elastoplastic response using microindentation tests. We note an increase in indentation modulus of 5%, 13%, and 21%, and an increase in indentation hardness of 9%, 18%, and 25%, respectively. We measure the fracture energy using cutting-edge microscopic fracture tests. In our tests, a sphero-conical diamond indenter pushes across the specimen's surface under a prescribed vertical force. We analyze the recorded penetration depth and horizontal force using nonlinear fracture mechanics and extract the fracture parameters. We find that carbon nanofibers enhance fracture resistance. The fracture toughness increases by, respectively, 38%, 40%, and 45%; meanwhile, the fracture energy increases by, respectively, 83%, 72%, and 74%. We find that carbon nanofibers lead to a densification of the microstructure. Moreover, we observe crack-bridg-ing mechanisms in geopolymer nanocomposites. This study is important to pave the way for novel enhanced-performance and multifunctional structural materials.
Effectof Unit Hydrographs and Rainfall Hyetographs on Critical Rainfall Estimates of Flash Flood

To obtain critical rainfall (CR) estimates similar to the rainfall value that causes minor basin outlet flooding, and to reduce the flash flood warning missed/false alarm rate, the effect of unit hydrographs (UHs) and rainfall hyetographs on computed threshold rainfall (TR) values was investigated. The Tanjia River basin which is a headwater subbasin of the Greater Huai River basin in China was selected as study basin. Xin’anjiang Model, with subbasins as computation units, was constructed, and time-variant distributed unit hydrographs (TVUHs) were used to route the channel network concentration. Calibrated Xin’anjiang Model was employed to derive the TVUHs and to obtain the maximum critical rainfall duration (Dmax) of the study basin. Initial soil moisture condition was represented by the antecedent precipitation index (Pa). Rainfall hyetographs characterized by linearly increasing, linearly decreasing, and uniform hyetographs were used. Different combinations of the three hyetographs and UHs including TVUHs and time-invariant unit hydrographs (TIVUHs) were utilized as input to the calibrated Xin’anjiang Model to compute the relationships between TR and Pa (TR-Pa curves) by using trial and error methodology. The computed TR-Pa curves reveal that, for given Pa and UH, the TR corresponding to linearly increasing hyetograph is the minimum one. So, the linearly increasing hyetograph is the optimum hyetograph type for estimating CR. In the linearly increasing hyetograph context, a comparison was performed between TR-Pa curves computed from different UHs. The results show that TR values for different TIVUHs are significantly different and the TR-Pa curve gradient of TVUHs is lower than that of TIVUHs. It is observed that CR corresponds to the combination of linearly increasing hyetograph and TVUHs. The relationship between CR and Pa (CR-Pa curves) and that between CR and duration (D) (CR-D curves) were computed. Warnings for 12 historical flood events were performed. Warning results show that the success rate was 91.67% and that the critical success index (CSI) was 0.91. It is concluded that the combination of linearly increasing hyetograph and TVUHs can provide the CR estimate similar to the minimum rainfall value necessary to cause flash flooding.
Partial Ordered Logit Analysis of Confidence Levels in Financial Institutions in Ghana. The Case of Asante Mampong Municipality

In recent times the financial sector (FS) of Ghana has been saddled with liquidity and operational challenges leading to several financial policies put in place by the Central Bank. The financial crisis and its resultant stringent measures affected public confidence as many customers lost their investments/savings while some financial institutions were consolidated or collapsed. Noting the critical role of public confidence in the financial sector, this paper assessed the confidence levels in FS of Ghana, using Asante Mampong Municipality as a case study. A random sample of 384 respondents was used. Due to the ordinal nature of the dependent variable (confidence levels), the Partial Proportional Odds (PPO) model was used when the ordered logit model failed to pass the proportional odds assumption. About 46.4% of the respondents reported having ‘no confidence’ in the financial institutions of the country, while 37% indicated having ‘somehow confident’ in the sector. Less than 20% of the respondents expressed ‘confident’ (13.3%) or ‘very confident’ (3.4%) in the FS. Duration of engagement with a financial institution, loss of investment, awareness of crisis/reforms of the financial sector and income levels affected the confidence levels in the financial sector. Financial institutions are recommended to strengthen their relationship with customers by providing improved services and policy measures that secure customers investment/savings to ensure sustained and increased levels of confidence.
Delimiting the eastern extent of the Altyn Tagh Fault: Insights from structural analyses of seismic reflection profiles

The Altyn Tagh Fault (ATF) serves as a key continental‐scale controlling structural element of the Tibetan Plateau. However, its eastward extent remains controversial. Here we use high‐resolution seismic reflection profiles to investigate the subsurface structures of the easternmost ATF and use these to delimit the easternmost extent of the fault. The structural analyses show an eastward geometric change from transpressional positive flower structures to compressional thrusts, with transpression‐induced shortening magnitudes decreasing eastwards from a maximum of ~5.3 km to being absent. Stratigraphic controls indicate that the deformation took place over the last ~<1.2 Ma. Our wider findings lead us to: (a) reject the suggestion that the ATF previously extended beyond the Kuantan Shan‐Hei Shan to link with the Alxa‐East Mongolia Fault; and (b) propose that the rigid block model used to describe the Tibetan Plateau crust is not consistent with the extent and structural details of the easternmost ATF.
Detecting and mitigating poisoning attacks in federated learning using generative adversarial networks

In the age of the Internet of Things (IoT), large numbers of sensors and edge devices are deployed in various application scenarios; Therefore, collaborative learning is widely used in IoT to implement crowd intelligence by inviting multiple participants to complete a training task. As a collaborative learning framework, federated learning is designed to preserve user data privacy, where participants jointly train a global model without uploading their private training data to a third party server. Nevertheless, federated learning is under the threat of poisoning attacks, where adversaries can upload malicious model updates to contaminate the global model. To detect and mitigate poisoning attacks in federated learning, we propose a poisoning defense mechanism, which uses generative adversarial networks to generate auditing data in the training procedure and removes adversaries by auditing their model accuracy. Experiments conducted on two well‐known datasets, MNIST and Fashion‐MNIST, suggest that federated learning is vulnerable to the poisoning attack, and the proposed defense method can detect and mitigate the poisoning attack.
Microbial Assessment of Bed Linens in Ekiti State University Students’ Hostels

Bed linen is clearly recognized as a potential reservoir for microorganisms and could be a vector of disease transmission. The present study was aimed at isolating and characterizing bacteria and fungi from different kinds of bed linen of student in Ekiti State University hostels. Pour plate method was used for the enumeration of total bacteria count from the posterior and anterior end of the bed linen. The average bacteria count for the anterior and posterior end was 7.46 and 7.16 Log10 CFU/ml respectively. The most dominant microbial species were bacteria and these were mostly found in the environment and on human skin. The bacteria isolated were Staphylococcus aureus, Staphylococcus epidermidis, Proteus mirabilis, Enterobacter aerogenes, Bacillus cereus, Escherichia coli and Klebsiella aerogenes. Bacillus cereus had the highest frequency of occurrence (25%), followed by Staphylococcus aureus (15%), Escherichia coli (15%), Klebsiella aerogenes (15%), Staphylococcus epidermis (15%), Enterobacter aerogenes (10%) and Proteus mirabilis (5%). The fungi isolates were Aspergillus sulphureus, Aspergillus fumigatus, Aspergillus niger, Aspergillus flavus and Fusarium spp. Antibiotics susceptibility test was carried out on the bacteria isolates with gram negative bacteria showing resistance to Cotrimoxazole and gram positive bacteria showing resistance to Amplicillin. Most of the bacteria isolates have multiple antibiotics Original Research Article Olowomofe et al.; JAMB, 20(5): 43-52, 2020; Article no.JAMB. 57184 44 resistance. The bacterial isolates were susceptible to Ciprofloxacin. Plasmid profiling was also done with Escherichia coli having three high molecular weight plasmids, Bacillus cereus and Enterobacter aerogenes do not possess plasmid. The identified species are suspected to be opportunistic pathogens for human, representing a risk for people with weakened immune system, especially in cases of super-infection.
The impact of relational capital on green supply chain management and financial performance

Abstract This study empirically investigates the joint effects of relational capital and green supply chain management on financial performance. The hypotheses are empirically tested using structural equation modelling and bootstrap methods based on data collected from 308 manufacturing companies in China. The results show that supplier and customer relational capital improve financial performance indirectly through supplier and customer green management, respectively. Internal relational capital improves financial performance indirectly through internal and supplier green management but has no significant indirect effect through customer green management. The results enrich the literature by providing insights into the synergic effects between relational capital and green supply chain management and by providing empirical evidence of the antecedents and consequences of green supply chain management.
Agregação de dinâmicas heterogêneas, acurácia da meia-vida e o enigma da PPC: evidência para cidades brasileiras

Resumo O enigma da PPC é apontado como um dos seis mais importantes puzzles da macroeconomia internacional. IMRR (2005a) apontam o viés de agregação de preços com dinâmica de ajuste heterogêneo como solução para o enigma. Este trabalho averigua se esse resultado é suportado para dados de cidades brasileiras utilizando-se o estimador CCEMG dinâmico, proposto por Chudik e Pesaran (2015), com correção half-panel jackknife para o viés do estimador OLS em amostra pequena. Os resultados corroboram a evidência de IMRR (2005a), com uma meia-vida mediana de 13,5 meses.
Cyst Detection and Motion Artifact Elimination in Enface Optical Coherence Tomography Angiograms

The correct detection of cysts in Optical Coherence Tomography Angiography images is of crucial importance for allowing reliable quantitative evaluation in patients with macular edema. However, this is a challenging task, since the commercially available software only allows manual cysts delineation. Moreover, even small eye movements can cause motion artifacts that are not always compensated by the commercial software. In this paper, we propose a novel algorithm based on the use of filters and morphological operators, to eliminate the motion artifacts and delineate the cysts contours/borders. The method has been validated on a dataset including 194 images from 30 patients, comparing the algorithm results with the ground truth produced by the medical doctors. The Jaccard index between the algorithmic and the manual detection is 98.97%, with an overall accuracy of 99.62%.
Manipulación de lesiones en pacientes con leishmaniasis cutánea: serie de casos en un hospital peruano

En áreas endémicas de leishmaniasis cutánea es común que los pacientes manipulen sus lesiones con tratamientos tradicionales como primera opción terapéutica. Con el objetivo de describir la frecuencia y los cambios de la manipulación de lesiones de leishmaniasis cutánea de pacientes en el Hospital Cayetano Heredia, se realizó un estudio tipo serie de casos. Se incluyeron 124 pacientes con leishmaniasis cutánea. El 54% (67/124) manipuló sus lesiones; el 92,5% (62/67) lo hizo con productos químicos, y el 43,3% (29/67), con plantas. Los cambios locales más frecuentemente reportados por los pacientes fueron aumento de tamaño de la lesión en el 35,8% (24/67) e incremento de inflamación en el 28,4% (19/67). La manipulación disminuyó la positividad del diagnóstico parasitológico en aquellos pacientes con lesiones ulcerativas.
A comparison of two-dimensional and three-dimensional techniques for determining the kinematic patterns for hindlimb obstacle clearance during sheep locomotion.

Camila Cardoso Diogo Universidade de Tras-os-Montes e Alto Douro Bárbara Fonseca Universidade de Tras-os-Montes e Alto Douro Francisca S.M. Almeida Universidade de Tras-os-Montes e Alto Douro Luís Maltez da Costa Universidade de Tras-os-Montes e Alto Douro José Eduardo Pereira Universidade de Tras-os-Montes e Alto Douro Vitor Filipe Universidade de Tras-os-Montes e Alto Douro Pedro Alexandre Couto Universidade de Tras-os-Montes e Alto Douro Stefano Geuna Universita degli Studi di Torino Paulo A. Armada-da-Silva Universidade de Lisboa Ana Colette Maurício (  acmauricio@icbas.up.pt ) Universidade do Porto Instituto de Ciencias Biomedicas Abel Salazar https://orcid.org/0000-00020018-9363 Artur S.P. Varejão Universidade de Tras-os-Montes e Alto Douro
When Do Security Markets Aggregate Dispersed Information?

In a seminal work, Plott and Sunder (1988) offer support for the rational expectations hypothesis and report evidence that markets with certain features aggregate dispersed information. However, their results are based on only a few observations and our attempt to replicate the key findings of that study with an appropriately powered experiment largely fails. The resulting post study probability that market performance is better described by rational expectations than the prior information (Walrasian) model under the conditions specified by Plott and Sunder (1988) is very low. As a result of our failure to replicate, we investigate an alternate set of market features that combines aspects of the original experimental design. For these markets we do find robust evidence of information aggregation in support of the rational expectations model. In total, our results indicate that information aggregation in asset markets is fragile and should only be expected in limited circumstances.
Examining the Mediation of Job Satisfaction in the Relationship between Work Stress and Turnover Intention in Textile Company

Objective – This study investigates the mediation role of job satisfaction in the relationship between work stress and turnover intention. A study about turnover intention in the textile company is still rarely done in Indonesia. This study can fill the gap regarding the topic. Methodology/Technique – A nonprobability sampling method with an accidental sampling technique was used, and we get 110 usable responses from a textile company in West Java, Indonesia. Macro Process with SPSS was used to measure the regression and the mediation. Findings – The study found that work stress has a negative effect on job satisfaction. Work stress significantly related to turnover intention in a positive direction. Job satisfaction did not have a significant relation with turnover intention. Thus, in this study, we found no mediation role in job satisfaction. Novelty – Evidently, work stress solely took part in shaping the turnover intention. Type of Paper: Empirical. Keywords: Work stress, Job satisfaction, Turnover intention, Textile Company, Mediation Reference to this paper should be made as follows: Saragih, R; Prasetio, A.P; Luturlean, B.S. 2020. Examining the Mediation of Job Satisfaction in the Relationship between Work Stress and Turnover Intention in Textile Company, J. Mgt. Mkt. Review 5(2) 113 – 121. https://doi.org/10.35609/jmmr.2020. 5.2(4) JEL Classification: J28, J29, M19.
How do ethics and transparency practices work in Thailand's local governments

Maintaining good governance practices regarding ethics and transparency in Thailand's local governments is very challenging. The lack of ethics and transparency are due to the abuse of power and misconduct by local politicians and officials and loopholes in the rules and regulation. This mixed-method study was conducted in the northeastern municipalities of Thailand. The research found that the factors of accountability, persons and structure were significantly associated with good governance practices of ethics and transparency with correlation levels of 0.88, 0.88 and 0.81, respectively. In-depth interview results indicated that good governance practices in local governments were not improved, although the military had seized power in May 2014. During this time, the abuse of power, misconduct and allegations of fraud committed by local politicians and officials continued.
Effect Of 24- Epi Brassinolide on Some BiochemicalCharacteristics of Parus and Gaviota Strawberry Cultivars Under Heat Stress Conditions

Calisma, cesit (Parus ve Gaviota), 24-Epi brassinolid konsantrasyonlari (0, 1 ve 2 mg/l) ve sicaklik (normal ve stres) olmak uzere uc uygulama 3 tekerrurlu olarak tesaduf parselleri faktoriyel deneme deseninde duzenlenmistir. Olcum ozelliklerinden bazilari, uygulamalar arasinda onemli bir fark oldugunu gostermistir. Sicaklik stresi kosullari altinda, 24 mg-Epi brassinolidin 1 mg/l konsantrasyonunda yapraktan uygulanmasi, Parus cesidinin yapraklarindaki katalaz ve superoksit dismutaz aktivitesini arttirmistir. Her iki cesidin meyveleri, normal sicaklik altinda 2 mg/l konsantrasyonunda 24-Epi brassinolid uygulamasinda en yuksek suda cozunur kuru madde icerigine sahip olmustur. En yuksek toplam fenolikler, normal sicaklik altinda 2 mg/l konsantrasyonunda 24-Epi brassinolid uygulanan Gaviota cesidinde tespit edilmistir. Her iki cesit, 24-Epi brassinolid icermeyen ve 24-Epi brassinolid iceren uygulamalarda, sicaklik stresi kosullari altinda 2 mg/l konsantrasyonunda en dusuk flavonoid icerigine sahip olmustur. Gaviota cesidinde, yuksek konsantrasyonda 24-Epi brassinolid (2 mg/l) uygulanmasi, sicaklik stresi kosullari altinda toplam antosiyanin miktarinin azalmasini onlemistir.