Miracle-dz/UniFAR-FTUs huggingface dataset:
REVIEW: EFEKTIVITAS LKPD UNTUK MENINGKATKAN KETERAMPILAN LITERASI SAINS PESERTA DIDIK DALAM PEMBELAJARAN KIMIA

Artikel ini bertujuan untuk mengetahui efektivitas LKPD dalam meningkatkan keterampilan literasi sains peserta didik pada pembelajaran kimia berdasarkan data hasil penelitian-penelitian sebelumnya. Keterampilan literasi sains yakni wawasan dan kecakapan ilmiah untuk mengidentifikasi pertanyaan, menangkap wawasan baru, mendeskripsikan kejadian ilmiah, memberi kesimpulan sesuai realitas, memahami karakter ilmu sains, sadar bahwa sains dan teknologi membangun lingkungan alam, intelektual, dan budaya, serta bersedia peduli dan berpartisipasi dalam isu-isu wawasan sains. Penelitian review ini menggunakan pendekatan systematic review dengan metode meta-analisis dengan uji paired sample dan study effect size. Penelitian dilakukan dengan menelusuri penelitian-penelitian sebelumnya yang relevan dengan topik bahasan. Kemudian data tes awal dan tes akhir keterampilan literasi sains diolah dan diuji menggunakan SPSS. Setelah dilakukan pengolahan dan analisis, didapatkan bahwa LKPD efektif untuk meningkatkan keterampilan literasi sains peserta didik pada pembelajaran kimia. Hal tersebut dibuktikan dengan peningkatan rata-rata nilai tes keterampilan literasi sains sebesar 38,409% dan didukung dengan nilai effect size sebesar 3,1981% yang termasuk dalam kategori kuat. Kata kunci: literasi sains, LKPD, literasi kimia, systematic review
Measuring Equity through Spatial Variability of Infrastructure Systems across the Urban-Rural Gradient

Recent regional research has taken an ‘infrastructure turn’ where scholars have called for examining the transformative ability of different infrastructures in causing systemic inequities beyond the spatial conception of ‘urban and the other’. This research examines the interconnected impact of infrastructure systems on existing spatial inequities through a study in metropolitan Philadelphia, Pennsylvania. This study investigates whether the urban-rural (U-R) gradient concept can enhance understanding of the spatial relationship between socioeconomic indicators and infrastructure systems. Indicators of spatial inequalities were regressed against infrastructure variables and imperviousness, as a proxy for the U-R gradient, using multivariate and spatial regression methods. The models show that imperviousness has a positive correlation with the concentration of racialized minorities and a negative correlation with access to health insurance. The study also shows that the predictive power of multiple infrastructures varies across space and does not adhere to urban boundaries or the U-R gradient. The complex interactions among different infrastructures shape inequities and require further inquiry in urban regions around the world.
QTL mapping of seed protein and oil traits in two recombinant inbred line soybean populations

ABSTRACT Seed oil and seed protein contents are commercially important components of soybean (Glycine max (L.) Merr. ) that are inversely correlated. The objectives of this study were to identify novel quantitative trait loci (QTL) and validate existing QTL associated with seed oil, seed protein, and seed weight in soybean. Two mapping populations, Pop 201 and Pop 202, consisting of 180 and 170 recombinant inbred lines (RILs), respectively, were used in this study. The phenotypic data for each population were collected from four environments. The linkage maps of Pop 201 and Pop 202 consisted of 421 and 416 polymorphic single nucleotide polymorphism (SNP) markers, respectively. Multiple QTL Mapping (MQM) analyses identified a total of 13 QTL for seed oil, 7 QTL for seed protein, and 6 for seed weight (SDWT). QTL for seed oil content not co-located with protein QTL were found on chromosomes 17 and 18 in multiple environments in Pop 201 and Pop 202, respectively. These QTL can be useful in reducing the inverse correlation between seed protein and seed oil contents. Most QTL found in this study are in previously reported genomic regions, and thus provide additional evidence for the stability of those QTL across genetic and environmental backgrounds. The findings of this study provide additional insight into the genetic control of these traits and potentially enable breeders to utilize the QTL-linked SNPs in marker-assisted selection (MAS).
The relation between the order-delivery lag and the rate of capacity utilization in the engineering industry in the United Kingdom, 1958-1967

Much has been written on the relation between the pressure of internal demand and the British export performance. A not unfair summary of an argument frequently put forward is as follows: a high pressure of demand, somehow defined, leads to a situation in which manufacturers divert productive resources away from meeting the export orders, towards satisfying home demand, presumably because the latter is more profitable in some sense. Such a shift of resources leads to lengthening of the order-delivery lags for export orders on the supply side; on the demand side such a lengthening of the lags (longer waiting times) may lead to a fall in the new orders, especially if price as well as waiting times are important dimensions of competition among different countries. In two recent articles Steuer, Ball and Eaton [3, 7] have examined aspects of this hypothesis.2 While these authors recognized that such questions could best be tackled in the framework of a variable distributed-lag model, they did not explicitly use such a model. In this paper such a model is proposed and estimated. The engineering industry (Order VI of the Standard Industrial Classification) has been chosen for an econometric analysis. The choice of the engineering industry has the disadvantage that our results would be rather specific; it has, on the other hand, the advantage that within it production is largely a response to orders, and production for inventory is negligible. Furthermore, the concept of "pressure of demand" can be given a reasonably precise meaning that is not always possible when such measures are constructed for the entire economy. However, not many apologies are necessary for this choice since its contribution to total output is large; its share of manufacturing exports is nearly a fifth; its share of nearly 70 per cent. in exports of machinery makes it of strategic importance; and finally, suitable quarterly data are available in a form convenient for use in the model considered in this paper.
Investigation of Forward and Backward Pumped Distributed Raman Amplification Schemes for a Single-Span 600Gb/s Coherent Fiber System

600Gb/s-PM-64QAM coherent transmission performances over 101km SMF with distributed Raman amplification of different pumping schemes are investigated. While forward pump using FP-laser diode can introduce 0.9dB Q-margin, hybrid forward/backward pumping can further optimize system performance. OCIS codes: (060.1660) Coherent communications; (140.4480) Optical amplifiers; (140.3550) Lasers, Raman
Control Strategy for Energy Storage Converter of Wind Power Adjustment System

The randomness and intermittency of wind energy leads to low capacity credit of wind power plant.At the same time,fluctuant power will cause deterioration to power quality of the grid,such as voltage instability and frequency deviation.Wind power adjustment system based on energy storage devices is an effective way to eliminate these adverse impacts.This paper analyzed energy distribution in the wind power adjustment system,and focused on the research and design of control strategy for energy storage converter which is the core unit of the system.By virtue of vector relation of grid voltage,converter voltage and line impedance voltage,real-time control of active power and reactive power injected into the grid was realized.The simulation and experiment results show that wind power adjustment system can smooth and regulate active power and reactive power of wind power system in real time,and control strategy for energy storage converter is effective and feasible.
An algorithm for a cutting problem in window frame production

This research discusses the cutting problem encountered by a real-life window frame manufacturer. In the problem, four types of bars (upper, bottom, left and right) should be cut from raw material aluminium profiles for each window frame order. These bars must be cut such that trim loss is minimised. Moreover, the bars should be assigned to the same raw material profile if possible to increase productivity; otherwise, they should be assigned to neighbouring raw material profiles. Furthermore, the numbers of bar types as derived from a raw material profile should not be unbalanced because this scenario induces subsequent machine load imbalance. In this study, we develop a mixed integer programming model and a knapsack-based heuristic approach that minimises the weighted sum of trim loss, bar type imbalance and the degree of order spreading. The results of computational experiments demonstrate the effectiveness of the proposed algorithm, and the proposed approach outperforms the legacy system of the company. Thus, this method is currently being used by the firm in question.
Methodology of validation of time series synthesize r for the Ka-band satellite propagation channel

To develop and test real-time Fade Mitigation Techniques control algorithms, propagation time series are needed. An alternative to us ing real data collected from propagation experiments is to generate typical fading time -series making use of climatological characteristics as well as geometrical and rad io-electrical parameters of the link. In the framework of the European action COST 280, different channel models have been studied in order to synthesize propagation time se ries. Starting from the availability of these channel models, the next step consists now in evaluating their physical soundness with respect to the dynamics of the propagation channel. The objective of this paper is to present a method of validation of these time series synthesizer s, to be applied with respect to experimental propagation time series. Indeed, if in the past, some testing activities of conventional statistical prediction models have been car ried out especially in the framework of ITU-R, these methods allow only a validation with res pect to long-term statistics. In the present context, new validation techniques have to be developed to assess the short-term behavior of these synthesizers. Starting from a databank of experimental measurements a Principal Component Analysis of the rain fade events is carried out in order to infer the typical characteristics of propagation fade events that h ave to be generated by the time series synthesizers. This analysis allows to identify the most discriminant relations between fade events characteristics: attenuation, fade slope, fad e duration, spectrum characteristics, etc…, in order to check if the generated fade events are representative of the propagation channel dynamics. Then, a short term validation methodology relying on the use of the Mahalanobis distance is proposed. This metric is considered in order to take into account the
The Importance of the Ecological Metaphor in Understanding Industrial Sustainability

According to the Brundtland Report (World Commission on Environment & Development, 1987), “Sustainability” has been defined as meeting the needs of the present without compromising the ability of future generations to meet their own needs. Although there is agreement in principle about the meaning of this concept, there are many and differing opinions as to what it means in practise and how the concept should be translated into specific actions (Grann, 1997). This exercise would be simpler if clear, well documented examples of industrial sustainability were evident, however it is not the case, leading to the conclusion that sustainable, industrial practice is difficult to achieve and be observed. In fact, leading theorists in this area, such as Ehrenfeld, have argued that a paradigm shift would be required to achieve a sustainable interaction of modern industrial practice with the environment and its finite resource base. Furthermore it is the application of industrial ecological principles and its associated discipline of industrial symbiosis with respect to industry that could provide a way forward. The following represents a brief account of the current state of these ideas and an exploration of the possible use of the ecological metaphor in facilitating industrial sustainability.
Evaluation of standardized mixture of synbiotic-glyconutrients supplemented in lambs finished during summer season in tropical environment: growth performance, dietary energetics, and carcass characteristics

Abstract: Twenty-four Pelibuey × Katahdin lambs (36.4 ± 2.9 kg initial weight) were used in a 77 d feeding trial in a randomized complete block design to evaluate the influence of a standardized synbiotic-glyconutrient combination (GLY) on growth performance, dietary energetic, and carcass characteristics of lambs finished during a period of high ambient temperature. Dietary treatments consisted of a high-energy basal diet supplemented (% of diet dry matter basis) with 0% versus 0.4% GLY. Throughout the study, the average temperature humidity index (THI) was 76.23, corresponding to the “alert” range, but daily maximum THI exceeded 80 for 2 to 6 h of each day of the 77 d study. Daily GLY intake averaged 0.10 g GLY·kg−1 live weight. Supplemental GLY increased (P = 0.04) daily water intake, but dry matter intake was not affected. Supplemental GLY increased (P < 0.03) initial 56-d, and overall (77-d) average daily gain, gain efficiency and estimated dietary net energy. Lambs fed GLY had greater (P ≤ 0.05) hot carcass weight and fat thickness, and decreased (P = 0.02) kidney-pelvic-heart fat. Supplemental GLY did not affect (P ≥ 0.16) shoulder tissue composition or relative weight of visceral mass. Synbiotic-glyconutrient combination improved growth performance, dietary energy, and carcass weight in lambs finished in high ambient temperatures. Enhancements in growth performance and dietary energetics were most appreciable during the first 56 d of the 77 d finishing period.
Beta3-Adrenergic Receptor (β3-AR) Modulation Prior to and / or at the end of Sustained Ischaemia and / or Early Reperfusion May Prove to be a Valuable Cardioprotective Strategy

β3-AR activation contributes partly or may be solely responsible for ensuing cardiac damage in myocardial ischaemia or heart failure. This would largely depend on disease stage, severity, experimental model as well as drug specificities which should be considered when investigating β3-AR pharmacology for potential therapeutic applications. These conceptions largely contribute to the discrepancies of the subsequent role of β3-AR activation in the cardiovascular disease process. The β3-AR delivers a sustained intracellular signal because of its resistance to short term agonist promoted desensitization, making this receptor an ideal target for therapeutic intervention and in this manner protecting the heart from catecholamine overstimulation. The current communication highlights the importance of the cumulative effect of BRL (PerT) treatment, at the end stage of ischaemia as well as BRL (PostT) treatment, at the onset of reperfusion. This undoubtedly illustrate the significance of the end stage of ischaemia as well as the onset of reperfusion in the concept of ischaemia- reperfusion damage and the importance of the application of cardioprotective interventions at these time periods. Subsequently, if cardioprotective regimens are initiated during the late phase of ischaemia and continued into early reperfusion, it is likely that they will enhance protection, especially with longer durations of ischaemia.
A study on the overseas expansion strategy of domestic ICT companies in the post-corona era -Focusing on case studies of ICT companies-

The purpose of this study was to explore a support model for domestic ICT companies to advance into overseas markets suitable for the post-corona era along with the rapidly changing global economic situation.As a result of the analysis, first, by analyzing the internationalization cases of domestic ICT companies through the realization theory, in the COVID-19 situation, domestic ICT companies organically respond to crisis situations through ad hoc responses, use of international networks, use of external organizations
On the performance of non-adaptive and adaptive optical wireless communications in atmospheric turbulence

Optical wireless communication is an attractive solution to the “last mile” bottleneck problem with additional benefits of having rapid deployment, enhanced security, protocol transparency, and unlicensed transmission bandwidth. However, atmospheric turbulence induced signal fading is a major performance degrading factor for any outdoor optical wireless communication systems. Since the atmospheric turbulence induced fading varies slowly, adaptive transmission is an effective fading mitigation solution for an outdoor optical wireless communication system. In this thesis, we primarily focus on the performance analysis of optical wireless communication systems employing different adaptive transmission schemes. We first study the average symbol error rate for a nonadaptive subcarrier intensity modulated optical wireless communication systems employing general order rectangular quadrature amplitude modulation. We consider three different turbulence channel models, i.e., the Gamma-Gamma channel, the K-distributed channel, and the negative exponential channel with different levels of turbulence. Exact average symbol error rate expressions are derived using a series expansion of the modified Bessel function. In addition, detailed truncation error analysis and asymptotic error rate analysis are also presented. Numerical results demonstrate that our series solutions are highly accurate and efficient. Next we investigate a variable-rate, constant-power adaptive subcarrier intensity modulation employing M -ary phase shift keying and rectangular quadrature amplitude modulation for optical wireless communication over the Gamma-Gamma turbulence channels. The adaptive schemes offer efficient utilization of optical wireless communication channel capacity by adapting the modulation order according to the received signal-to-noise
Molecular Dynamics Modeling of Kaolinite Particle Associations

The research reported in this publication was supported by grant BAS/1/1309-01-01 from King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia. High-performance computing facilities provided by KAUST Supercomputing Laboratory are gratefully acknowledged. The authors thank Dr. Andrey Enyashin for his help on kaolinite nanoparticle construction.
Stabilisasi Sistem Kontrol Bilinier Dengan Gangguan Menggunakan Linierisasi Eksak Dan Backstepping

Sistem kontrol bilinear banyak digunakan dalam teknik dan kimia untuk memodelkan dinamika karena memiliki pendekatan dan kinerja yang lebih baik daripada sistem kontrol linier. Namun asumsi dan keterbatasan dalam pemodelan akan menghasilkan faktor ketidakpastian, yaitu berupa parameter taktentu dan fungsi gangguan. Pada artikel ini dibahas tentang desain kontrol pada sistem kontrol bilinier berorde dua dengan adanya fungsi gangguan. Diasumsikan sistem memiliki derajat relatif dua dan fungsi gangguan hanya berpengaruh pada dinamik variabel keadaan yang dikontrol. Sistem kontrol bilinier diasumsikan memiliki derajat relatif dua sehingga dapat ditransformasi secara eksak menjadi bentuk normal menggunakan transformasi umpan balik. Desain kontrol dilakukan berdasarkan sistem linier menggunakan metode backstepping. Hasil simulasi menunjukkan bahwa fungsi kontrol yang diperoleh dapat membawa luaran sistem dari titik awal menuju titik asal dalam waktu yang relatif singkat.
Calibración ojo a mano de un brazo robótico industrial con cámaras 3D de luz estructurada

La visión artificial está cobrando cada día más auge en el mundo de la robótica industrial, ya que es necesario realizar tareas cada vez más precisas y autónomas, por lo que se necesita un posicionamiento del robot más exacto. Para ello se precisa del apoyo de un sistema de visión que sea el que preste al robot precisión en su pose, calibrando dicho sistema con respecto al robot. Este trabajo presenta una metodología sencilla para abordar esta forma de calibración, llamada ojo a mano, empleando una cámara 3D de luz estructurada que obtiene la información del mundo real y un brazo robótico industrial de seis ejes. Esto permite utilizar el algoritmo RANSAC para la determinación de los planos, cuya intersección nos da las coordenadas de los puntos,lo que supone una reducción notable de los errores, ya que las coordenadas proceden de planos ajustados a miles de puntos, lo cual hace que el sistema sea más robusto y capaz de obtener una matriz de transformación de las coordenadas de la cámara a la base del robot, que le permitirá abordar cualquier tarea que precise con una precisión eficiente. Se ha realizado el análisis de errores resultante utilizando dos cámaras 3D diferentes: una básica (Kinect 360) y otra industrial (Zivid ONE+ M).
Aula invertida y su impacto en el rendimiento académico: una revisión sistematizada del período 2015-2020

Las nuevas perspectivas educativas amparadas en las TIC y en la Internet, han permitido el avance y admisión de otras formas y modelos para aprender. Uno de ellos es el aula invertida, donde los procesos educativos se invierten. El objetivo de este estudio fue sistematizar la producción bibliográfica en el período 2015-2020, respecto a la aplicación del aula invertida y su impacto en el rendimiento académico. El diseño metodológico cumple los lineamientos del Framework SALSA. Al aplicar los criterios de inclusión y exclusión, la muestra definitiva fue de 32 artículos. Los resultados revelan que el 2017 fue el año donde se realizaron más estudios; siendo España el país de mayor incidencia. Las experiencias se llevaron a cabo en mayor proporción a nivel universitario y con diseños empíricos cuasiexperimentales o experimentales. La revisión ha permitido concluir, que la mayoría de los estudios evidencia un efecto positivo o ganancia sobre el rendimiento académico del grupo experimental.
Academic Procrastination of Adolescents: A Brief Review of the Literature

Procrastination is a common behavioral and psychological concern that refers to unnecessarily delaying tasks and experiencing negative results. Adolescent students are the ones especially prone to suffer from academic procrastination as they are in a unique stage of rapid development and growth. Previous research has demonstrated that adolescent academic procrastination is related to self-regulation, self-efficacy, motivation, perfectionism, and parenting. Moreover, the Internet, especially smartphones and online games, has presented new ways to procrastinate. Online learning during the COVID-19 pandemic has implications for academic procrastination as well. Therefore, the aim of this literature review is to synthesize studies on academic procrastination of teenagers and consider individual, family, and technology perspectives. Interventions, such as Cognitive Behavioral Therapy (CBT) and Acceptance Commitment Therapy (ACT), treat procrastination, with common strategies targeting specific behaviors and emotions. To address some limitations, future research should expand to Eastern contexts, construct reliable measures, address distance learning, and develop alternative treatment approaches. This line of research would help teachers and parents support adolescent students in reducing their urges to procrastinate and developing good learning habits to lay a foundation for future studies and work.