Miracle-dz/UniFAR-FTUs huggingface dataset:
Escalas abreviadas de Depresión, Ansiedad y Estrés (DASS-21): validez, fiabilidad y equidad en adolescentes peruanos

En los últimos años se ha observado un creciente aumento de los trastornos psicológicos en la adolescencia, particularmente de ansiedad y depresión. A pesar de su importancia clínica, estos desórdenes emocionales no son abordados oportunamente, entre otras razones por la escasez de instrumentos para este grupo etario. Por ello, en este estudio de diseño instrumental se buscó analizar la validez, fiabilidad y equidad de las Escalas Abreviadas de Depresión, Ansiedad y Estrés (DASS-21). Participaron 731 adolescentes peruanos con edades entre 14 y 17 años (M = 15.46; DE = 1.00, 54% hombres), provenientes de tres instituciones educativas públicas de la provincia constitucional del Callao. Se analizaron las evidencias de validez de contenido y se examinaron estadísticamente los 21 ítems del DASS-21. El análisis factorial confirmatorio mostró la pertinencia del modelo de tres factores: X2/gl = 2.87, CFI = . 91, TLI = . 89, RMSEA = . 05 y SRMR = . 04. Se corroboró que el estrés es predictor de ansiedad (r = .88, r 2 = .76) y depresión (r = .86, r 2 = .74), y que ansiedad y depresión (r =.86, r 2 =.73) suelen manifestarse en conjunto. Los coeficientes de consistencia interna alfa y omega > . 80 demuestran la alta fiabilidad de las tres escalas. Finalmente, el análisis de invarianza factorial indicó que el instrumento es equivalente según edad y sexo. Se concluye que las escalas DASS-21 cuentan con evidencias psicométricas para su aplicación como instrumento de cribado en adolescentes peruanos. No obstante, se sugiere realizar futuras investigaciones para obtener mayores evidencias de validez, fiabilidad y equidad, y elaborar datos normativos
The Association Between Vitamin D Receptor Gene FokI Polymorphism and Pulmonary Tuberculosis

Backgrounds: There is a wide range of individual responses to mycobacterium infection. However, the reason why certain people suffers from a disease when they are infected with mycobacterium while others remain healthy is still unknown. Genetic susceptibility is thought to be one of the important explanatory factors for individuals with the risk of developing pulmonary tuberculosis (TB). FokI polymorphism was one of the genetic variations within the vitamin D receptor (VDR) gene associated with pulmonary TB. In the present study, we investigated the association between VDR gene FokI polymorphism and pulmonary TB. Conclusion: There was no significant association between the VDR gene FokI polymorphism and pulmonary TB.
Causes of Soil Acidity and Its Management Mechanisms in Ethiopia: A Review.

Soil acidity has become a serious problem to crop production in most highlands of Ethiopia. An earlier study estimated that about 41% of cultivated land in Ethiopia is affected by soil acidity where 28% of cultivated land is highly acidic. Even though this much were acidic, it its degree is varied from location to location in which highland was severely affected thereby limit crop productivity and livelihoods. In the highland of Ethiopia acidification could aggravated due to the different agents such as depletion of organic matter, soil nutrients, feature of topography and high rainfall which can to leach appreciable amounts of exchangeable basic cations. In large parts of the country application acid-forming chemical fertilizers, removal of crop residues, and parent material of the soil are the causes for soil acidification. Acidic soil adversely affects the availability of phosphorus, calcium, magnesium and other nutrients, which can in turns affect the diversity and function of soil microbes. Soil acidity can amend through application of; lime, integrate soil fertility management components, and using acid tolerant crops varieties. Liming can treat soil pH along with supplying oxides and hydroxides of calcium and magnesium to the soil. Management of acid soil is crucial issue for enhancing crop productivity and improves food security. It also provides important information on management options to amend soil acidity and improve soil fertility.
Profile of Student Academic Procrastination Behavior in Problem Solving and Mathematical Digital Literacy

The phenomenon of procrastination behavior in problem-solving and mathematical digital literacy still occurs among students. This study aimed to analyze the profile of students' academic procrastination behavior in problem-solving and mathematical digital literacy-purposive sampling technique involving 19 students of one junior high school in Indonesia. Academic procrastination behavior is obtained through qualitative research with a case study approach using the Tuckman Procrastination Scale (TPS) instrument, digital literacy scale, mathematical problem-solving ability tests, and semi-structured interviews as well as data analysis with four steps of research, namely data collection, data reduction, data presentation, and concluding. Most of the students (84.2%) experienced academic procrastination in solving mathematical problems and mathematical digital literacy (21%). There are six kinds of problem-solving and mathematical digital literacy student profiles in the high, moderate, and low category.
Electro-Mechanical Impedance-Based Wireless Structural Health Monitoring Using PCA-Data Compression and k-means Clustering Algorithms

This article presents a practical method for an electro-mechanical impedance-based wireless structural health monitoring (SHM), which incorporates the principal component analysis (PCA)-based data compression and k-means clustering-based pattern recognition. An on-board active sensor system, which consists of a miniaturized impedance measuring chip (AD5933) and a self-sensing macro-fiber composite (MFC) patch, is utilized as a next-generation toolkit of the electromechanical impedance-based SHM system. The PCA algorithm is applied to the raw impedance data obtained from the MFC patch to enhance a local data analysis-capability of the on-board active sensor system, maintaining the essential vibration characteristics and eliminating the unwanted noises through the data compression. Then, the root-mean square-deviation (RMSD)-based damage detection result using the PCA-compressed impedances is compared with the result obtained from the raw impedance data without the PCA preprocessing. Furthermore, the k-means clustering-based unsupervised pattern recognition, employing only two principal components, is implemented. The effectiveness of the proposed methods for a practical use of the electromechanical impedance-based wireless SHM is verified through an experimental study consisting of inspecting loose bolts in a bolt-jointed aluminum structure.
DETERMINANTS OF NAVY REENLISTMENT AND EXTENSION RATES

Abstract : This paper analyzes the effects of regular military compensation and reenlistment bonuses on the probabilities of reenlistment and extension among first-term and second-term Navy enlisted personnel. We find that the pay elasticities vary substantially across occupational categories. For example, the elasticity of the total probability of staying with respect to regular military compensation ranges between 1.12 and 2.72 for first-term personnel and between 0.94 and 3.78 for second-term personnel. We recommend adopting occupation-specific pay elasticities in forecasting since the all-Navy pay elasticity will yield misleading results.
A Review: Effects of air, water and land dumpsite on human health and analytical methods for determination of pollutants

Environment pollutants are found here and there in developing countries and these contaminations affect the environment adversely. A few remediation of pollution which includes incineration which is the waste treatment process that involves the combustion of organic substances contained in waste material, the waste handling practices, the recycling resource recovery, the avoidance and reduction methods, the adsorption based on nanotechnology and the bioremediation technology which appears as a cost-effective and environmental friendly approach for cleanup. Recently researches shows that various chemicals (VOCs, BTEX, heavy metals) that might be delivered into the air or water can cause unfriendly health effects which was analyzed based on sample treatments (solid phase extraction: SPE, the liquid-liquid microextraction: LLME, the magnetic solid phase extraction: MSPE) and instruments such as ET-AAS, F-AAS and GC-FID methods. The related weight of disease can be substantial, and interest in research on health effects and intervention in explicit populations and openness circumstances is significant for the development of control systems. Pollution control and determination is thusly a significant segment of disease control, and health experts and analytical chemistry specialists need to foster associations with different areas to recognize and carry out need interventions.
Design of a wideband microstrip array antenna for PCS and IMT‐2000 service

In this letter, a wideband microstrip array antenna for a PCS and IMT‐2000 base station is designed. To obtain the wideband characteristic, we utilized a multilayered structure composed of foam materials and a parasitic element with an aperture‐coupled feeding network. The return‐loss characteristic is improved by placing the gaps between coupling slots. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 261–265, 2001.
Uncovering mechanisms of seed predation by fish

Our experiment revealed unexpected behavioral strategies involved in seed predation of Mabea fistulifera by fish (Brycon cephalus), including temporal storage of seeds in the stomach followed by regurgitation and reingestion of individual seeds. Larger fish were faster at removing the seed coat and exposing the endosperm, due to precise oral manipulation of seeds.
You’re Collating Just Fine and Other Lies You’ve Been Telling Yourself

Although textual scholars agree that collation is a crucial component of the editing process, it often goes undefined and only briefly explained. This article defines the term, explains different kinds of collation, and explores some of its applications. We emphasize stemmatology and medieval textual traditions. By drawing from editorial examples and the theoretical frameworks of projects centred on works such as the Canterbury Tales, Troilus and Criseyde, Dante’s Commedia and the Greek New Testament, the article seeks to compare manual and computer-assisted approaches to collation methods. We delineate the scope of this activity and argue that computer-assisted collation minimizes the risk of missing out on relevant data. We examine the advantages of full-text collation over sample collation and conclude that no decisions about stemmatically significant variation can be made a priory and that variant distribution is the major factor weighing on significance.
DETERMINING VITREOUSNESS OF DURUM WHEAT USING TRANSMITTED AND REFLECTED IMAGES

Digital imaging technology has found many applications in the grain industry. In this study, images of durum wheat kernels acquired under three illumination conditions (reflected, side-transmitted, and transmitted) were used to develop artificial neural network models to classify durum wheat kernels by their vitreousness. The results showed that the models trained using transmitted images provided the best classification for the nonvitreousness class (100% for non-vitreous kernels and 92.6% for mottled kernels). Results of the study also indicated that using transmitted illumination may greatly reduce the hardware and software requirements for the inspection system, while providing faster and more accurate results for inspection of vitreousness of durum wheat.
Analysis and compensation of current measurement error in vector controlled AC motor drives

In this paper, the effects of current measurement error inherent in all categories of AC motor drives are discussed and a compensation method is proposed. Recently, as the higher performance of torque control is required, current measurement error classified as offset error and scaling error becomes considerable. It is demonstrated that the offset error causes the torque of a motor to oscillate at the stator electrical frequency, f/sub e/, and the scaling error, at the frequency, 2 f/sub e/, respectively. These torque ripples deteriorate the performance of speed control because they act as disturbance loads. The simulation and experimental results shows that the proposed compensation method can improve the performance of torque control by eliminating torque ripples effectively.
Exploring the Factors Affecting Academic Performance of Undergraduate Nursing Students

Academic performance is the ability of students to manage their studies and the various tasks are given to them by their teachers. It includes the capability to study and remind information and to convey this knowledge acquired either verbally or in written (Elsabagh). A Cross-sectional descriptive study was conducted among the 135 nursing students of Lahore School of Nursing (BSCN (Bachelor of Science in nursing) and Post RN (Post-Registered Nurse), The University of Lahore, Pakistan from September 2019 to December 2019. The instrument used for the data collection was adopted questioner and a convenient sampling technique was used. The data collected through the questionnaires are tested using the SPS software. While the relationship between the variables was tested using the multiple linear regression test. Findings show that teaching method, time management, attendance of students, and sleep have a positive influence on the academic performance of nursing students. Racial ideology has a negative effect on tertiary education student’s academic performance. This study has discovered that teaching methods, attendance, time management, and sleep positively influence the academic performance of Undergraduates nursing students.
Road Vehicle Suspension System Design - a review

SUMMARY Based mainly on English language literature, information relating to the design of automobile suspension systems for ride comfort and control of wheel load variations for frequencies below body structure resonances is reviewed. The information is interpreted in the context of vehicles which travel through a wide speed range on roads of markedly differing quality, which do so carrying different loads and which are required to possess good handling qualities. Sections are devoted to describing road surfaces, modelling vehicles and setting up performance criteria, and to passive, active, semi-active and slow-active system types. Methods for deriving active system control laws are outlined. Strengths and weaknesses of the various systems are identified and their relative performance capabilities and equipment requirements are discussed. Attention is given to adaptation of the suspension or control system parameters to changing conditions. Remaining research needs are considered.
Utilization of Spent Nickel Catalyst as Raw Material for Ni-Rich Cathode Material

Spent nickel catalyst will be harmful to the environment if it is not processed or used properly. In fact, this waste still has a high nickel content. The treatment of spent nickel catalysts has been widely reported, but limited to nickel extraction. Since the lithium-ion batteries demand is continued to increase, then nickel is the most sought-after metal. Consequently, nickel from spent nickel catalysts could be developed as secondary source for lithium-ion battery cathode. This study aims to utilize spent nickel catalysts into more valuable materials. Nickel that has been extracted and mixed with Mn and Co has been used as raw material for nickel-rich cathode, namely NMC. Nickel extraction and NMC synthesis were using the acid leaching method followed by co-precipitation[WI1] [SSN2] . Based on the functional test performed in this work, nickel from spent nickel catalyst can be applied to Li-ion batteries. The sintering temperature that gives good characteristics and electrochemistry was found 820oC. The galvanostatic charge-discharge test gave specific capacity results for NMC of 110.4 mAh/g. The cycle test showed that NMC synthesized from spent nickel catalyst can be carried out up to 50 cycles with a capacity retention of 87.18%.
Inferences for multiple interval type-I censoring scheme

In this paper, we have introduced a new type of censoring scheme named the multiple interval type-I censoring scheme. Further, We have assumed that the test units are drawn from the Weibull population. We have also proposed the maximum product of spacing estimators for unknown parameters under the multiple interval type-I censoring scheme and compare them with the existing maximum likelihood estimators. In addition to this, the Bayes estimators for shape and scale parameters are also obtained under the squared error loss function. Their corresponding asymptotic confidence/credible intervals are also discussed. A real data set containing the breakdown time of insulating fluids are used to demonstrate the appropriateness of the proposed methodology.
EFFECT OF TILLAGE AND PLANTING PRACTICES ON RICE YIELD AND ENGINEERING CHARACTERISTICS OF MILLING QUALITY

The present work was carried out to determine the effect of different land preparation methods, conventional tillage (CT) and reduced tillage (RT) combined with different planting systems, random manual transplanting, row transplanting (20*20) and mechanical drilling of two rice variety, long and short grain represented by Giza 182 and Sakha 101, respectively, on yield and milling quality to recommend the most suitable combination of land preparation methods and planting systems. The field experiments were conducted at the Agriculture Research Experimental Station, Faculty of Agriculture, Alexandria University, and the milling process were conducted in Rice Training and Research Center, repeated during the 2005 and 2006 summer seasons. The results indicated that the maximum total grain yield with respect to planting systems was achieved with mechanical drilling system combined with conventional tillage treatment (3.045 t/fd). However, reduced tillage treatment (RT) with transplanting in rows (20*20) cm gave higher grain yield (2.73 t/fd) than CT treatment. In addition, mechanical drilling with conventional tillage (CT) gave higher values of yield components (number of tillers per sq.m number of filled grain per panicle and 1000 grain weight) compared to the same planting system under reduced tillage. Moreover, the measured physical and mechanical properties such as length (L), width (W), grain shape factor (L/W) and grain rigidity indicated that: as the length to
Computer-aided synthesis of commensurate line network and its application in MMICs

A useful theorem which extends a previously introduced lossy transformation technique to more general applications is proposed for transformation between distributed lossy and lumped lossless networks, and a corollary is given for extension of the well-known Kuroda identities to the general lossy case. A computer-aided approach is developed for the synthesis of lossy commensurate line networks with all lines having arbitrary frequency-dependent losses. As an application, two broadband amplifiers are designed for monolithic microwave integrated circuits (MMICs) and their performances are compared with the examples in earlier literature. It is shown that the ripples of the lossless gains are much less than those of the initial gain responses presented in the literature. >
Lower extremity injuries in side-impact vehicle crashes

Lower extremity (LE) fractures and dislocations resulting from car crashes are costly and debilitating. In particular, occupant safety regulations for side-impact crashes are deficient in protecting the knee, lower leg and ankle/foot. Hence further side-impact research is required to understand injury mechanisms of these parts of the LE. In addition, side-impact dummies so far cannot measure forces and injury criteria in these lower parts of the LE. The aim of this paper is to identify and characterise LE fractures and dislocation injuries in side-imacts and propose some injury mechanisms. There appears to be some consensus on mechanisms describing how fractures and/or dislocations of the LE occur in frontal crashes. However, as far as the authors are aware, the mechanisms for side-impact have yet to be described and published. This paper presents some preliminary results of case studies of LE injuries incurred in vehicles subjected to side-impact crashes in Australia between 1989 and 2002. A summary of the findings to date is presented. Three basic injury mechanisms have been identified. They are: (1) Intrusion causing entrapment resulting from leg area volume reduction with a bending side-force, acting alone or together; (2) High-energy, side-impact, striking force resulting from being in direct contact with the struck portion of the vehicle; and (3) Inertial movement of the body causing loading of the LE resulting from its interaction with the vehicle interior and where intrusion is not the cause of the injury. This paper also proposes some injury mitigation strategies.
DAB Converter for EV Onboard Chargers Using Bare-Die SiC MOSFETs and Leakage-Integrated Planar Transformer

This article discusses electrical design optimization of a 3.3 kW, 380 V to 250–380 V, 500 kHz, dual-active-bridge dc–dc converter for onboard chargers, operated with constant-power (CP) charging. In order to operate the converter at 500 kHz without concerns on switching performance and efficiency while also improving power density, a low-parasitics, PCB-based, wire-bondless full-bridge module featuring bare-die SiC MOSFETs and compact, electrothermally multifunctional coolers is employed. High switching frequency operation also felicitates the realization of the DAB inductor using the transformer’s leakage inductance, thereby enhancing the power density by eliminating the need for a discrete inductor. Design strategy for such magnetic integration in a planar transformer is discussed, followed by a systematic design optimization of the transformer, including the selection of leakage inductance value, the core geometry, and the number of turns for achieving zero-voltage switching (ZVS) and maximum average efficiency over the entire charging profile. Experimental validation was performed using a proof-of-concept prototype, which is operated up to 3.3 kW and has a final projected power density of 5.44 kW/L. Results demonstrate the operation with ZVS over the entire charging profile with satisfactory high-frequency waveforms and a peak efficiency of 98%.
Textbook on additives and addictive substances with a scientific-based approach, a research and development

Improving learning activities requires teaching materials that can accommodate students' scientific skills. This study aims to produce textbooks for additives and addictive substances with a scientific approach and analyze their validity and effectiveness. This research and development used the Borg & Gall model which consists of 10 steps. Products are validated by media experts and material experts. The product trial used a limited test with 15 students of seventh grade in junior high school. The validation results show that the product is valid and very good. Meanwhile, the results of the trial of student responses to the use of the average value of 89.13% and learning outcomes increased by 87%. Thus, the textbooks developed are very suitable for use in the learning process.