bluuebunny/crossref_metadata_2025_split huggingface dataset:
Circulating biomarkers associated with performance and resilience during military operational stress
Authors: Beckner Meaghan E. , Main Luana , Tait Jamie L. , Martin Brian J. , Conkright William R. , Nindl Bradley C. 
Published: August 2021

ABSTRACTAdaptation to military operational stress is a complex physiological response that calls upon the sympathetic nervous system (SNS), hypothalamic pituitary adrenal (HPA) axis and immune system, to create a delicate balance between anabolism and catabolism and meet the demands of an ever‐changing environment. As such, resilience, the ability to withstand and overcome the negative impact of stress on military performance, is likely grounded in an appropriate biological adaptation to encountered stressors. Neuroendocrine [i.e. cortisol, epinephrine (EPI), norepinephrine (NE), neuropeptide‐Y (NPY), and brain derived neurotropic factor (BDNF)], inflammatory [i.e. interleukin 6 (IL‐6), IL‐1β, IL‐4, IL‐10 and tumour necrosis factor (TNF)‐α], as well as growth and anabolic [i.e. insulin‐like growth factor‐I (IGF‐I), testosterone, and dehydroepiandrosterone (DHEA)] biomarkers independently and interactively function in stress adaptations that are associated with a soldier's physical and psychological performance. In this narrative review, we detail biomarkers across neuroendocrine, inflammatory, and growth stimulating domains to better elucidate the biological basis of a resilient soldier. The findings from the reviewed studies indicate that military readiness and resiliency may be enhanced through better homeostatic control, better regulated inflammatory responses, and balanced anabolic/catabolic processes. It is unlikely that one class of biomarkers is better for assessing physiological resilience. Therefore, a biomarker panel that can account for appropriate balance across these domains may be superior in developing monitoring frameworks. Real‐time physiological monitoring to assess biomarkers associated with resilience will be possible pending more sophisticated technologies and provide a field‐expedient application for early identification and intervention of at‐risk soldiers to improve military resiliency.
Auto‐regulatory progressive training compared to linear programming on muscular strength, endurance, and body composition in recreationally active males
Authors: Ghobadi Hamid , Attarzadeh Hosseini Seyyed Reza , Rashidlamir Amir , Forbes Scott C. 
Published: August 2021

ABSTRACTWe compared eight weeks of auto‐regulatory progressive resistance exercise (APRE) to linear programming resistance exercise (LPRE) on changes in muscular strength and endurance, anaerobic power, and body composition in recreationally active males. Twenty‐four recreationally active males (age: 24 ± 3 y; body mass: 78.3 ± 10.3 kg) were randomly assigned to one of two groups: APRE (n = 12) and LPRE (n = 12). Both groups performed supervised training 3x/week for eight weeks Upper and lower body muscular strength and endurance, anaerobic power, and body composition were assessed at baseline, week 4, and 48 h after the final training session. Repeated measures ANOVA and hedge's g effect sizes (ES) were used to interpret the data. After training, there was a significant increase in absolute leg press (APRE: ES = 2.23; LPRE: ES = 1.35) and chest press strength (APRE: ES = 2.19; LPRE: ES = 0.98), upper (APRE: ES = 2.50; LPRE: ES = 1.074), and lower body peak power (APRE: ES = 0.78; LPRE: ES = 0.39), and upper (APRE: ES = 2.50; LPRE: ES = 1.60) and lower mean power (APRE: ES = 0.99; LPRE: ES = 0.54) over time in both groups compared to baseline. Following APRE, absolute leg press strength was significantly greater compared to LPRE (p = 0.04; ES = 2.41, ES = 1.36), while absolute chest press strength gains were similar between groups (p = 0.08; ES = 2.21, ES = 0.98). Skeletal muscle mass significantly increased similarly in both groups over time (APRE: ES = 0.46; LPRE: ES = 0.21), while there was no change over time or between groups for body fat %. APRE and LPRE were both effective at improving anaerobic power and skeletal muscle mass; however, APRE was more effective at improving lower body muscular strength in recreationally active males.
Transverse confinement of electron beams in a 2D optical lattice for compact coherent x-ray sources
Authors: Fallahi Arya , Kuster Niels , Novotny Lukas 
Published: August 2021

Abstract
Compact coherent x-ray sources have been the focus of extensive research efforts over the past decades. As a result, several novel schemes like optical and nano-undulators for generating x-ray emissions in ‘table-top’ setups are proposed, developed, and assessed. Despite the extensive efforts in the past decades, there exists no operational FEL based on optical or electromagnetic undulators. By combining the particle confinement capability of optical cavities with wiggling motion inside an optical undulator, this paper proposes a new concept for making a compact coherent x-ray source. The full-wave solution of first-principle equations based on finite-difference time-domain and particle-in-cell is performed to simulate inverse-Compton scattering (ICS) off both free and confined electrons. It is shown that the strong space-charge effect in a low-energy electron beam (5 MeV) is the main obstacle in acquiring coherent gain through the ICS mechanism with a 10 micrometer laser. Subsequently, it is shown that by confining the electron beam at the field nodes of an optical cavity, the space-charge effect is compensated, and additionally, the ultrahigh charge density enables high FEL-gain at confinement spots. The full-wave numerical simulations predict enhancement of about three orders of magnitude in the radiation efficiency when ICS is carried out with confined electrons compared to free electrons. These theoretical results show promising potential as a new scheme for implementing a compact coherent x-ray source.
Development of digital mathematics teaching materials in elementary schools using whiteboard animation for primary teacher education students STKIP PGRI Lubuklinggau
Authors: Rijal A , Azimi A 
Published: August 2021

Abstract
The problems that arise in the world of education today include the low competence of teachers and lecturers in the era of education 4.0, namely developing teaching materials or digital material therefore a teacher or lecturer must have various skills including skills in developing the right digital mathematics teaching materials in elementary schools using whiteboard animation for primary teacher education students. This study aims to develop digital mathematics teaching materials in elementary schools using whiteboard animation for primary teacher education students for elementary school mathematics, whiteboard animation for elementary school teacher education students of STKIP PGRI Lubuklinggau which has been tested valid and practical. This study uses a development research approach from the preliminary analysis stage, the design stage, and the assessment stage. The subjects of this study were students of the fifth semester of elementary school teacher education at STKIP PGRI Lubuklinggau. Data collection techniques using questionnaires, observation, or interviews. The data analysis technique used is a descriptive analysis that describes the validity and practicality. The research has a very valid teaching material product with a score of 95% and practical with an average score of 92.5%. Thus, the teaching materials in this study can be used because they have been declared valid and practical.
Computer-based learning: 3D visualization and animation as content development for digital learning materials for traditional Indonesian cloth (Songket Palembang)
Authors: Sari I P , Permana F C , Firmansyah F H , Hernawan A H 
Published: August 2021

Abstract
The animation is currently developing very rapidly, especially in 3D animation. Animated 3D visualization not only develops in the field of film, but also develops in digital-based learning such as interactive applications, presentation slides, e-books, and games, as well as supporting content for immersive technology, such as Augmented Reality, Virtual Reality, Mix Reality, and others. The development of 3D animation nowadays, but not accompanied by the use of animation as the delivery of information with local cultural content. The young generation’s lack of interest in local cultural arts is accompanied by a lack of digital learning materials and the delivery of interesting information for the younger generation. Therefore, the researcher aims to create 3D animated visualization assets that can motivate students to learn Indonesian cultural arts. Researchers applying the method Subdivision Surface, UV-mapping, 3d Painting, and walk cycle animation in the 3D visualization animation production process. The final result of this research is 3D Visualization and Animation as Content Development for Digital Learning Material for Indonesian Traditional Fabrics: Songket Palembang based on cloud for elementary school students.
A comparative study: Multimedia interactive use on contextual and cooperative approaches in increasing mathematical understanding
Authors: Nasrulloh I , Rahadian D , Hamdani N A , Imania K A N , Rikaldi P B R 
Published: August 2021

Abstract
Students’ abilities are not limited to just knowing the mathematics theory and concepts, but a deeper understanding needs to be had by students. The characteristic of contextual and cooperative approaches have distinct advantages. The study tries to quantify achieving contextual and cooperative approaches by using multimedia interactive in improving student math comprehension. Research shows increased student’s mathematics comprehension over contextual classes 0,71 in the high category and the cooperative class 0,38 in the moderate category. Increased mathematical understanding of students with classes uses a contextual approach higher than the class that uses a cooperative approach. The primary key of the contextual approach can link lesson materials with the real world or student experience. A cooperative approach requires students’ characteristics in high-level activity, learning skills, and great learning motivation.
Comic maker app for enjoyable learning
Authors: Rakhmayanti F 
Published: August 2021

Abstract
Learning in the current era also demands mastery of technology (technological literacy). Students and teachers need to take advantage of technology with various application in it to increase their creativity and quality of learning. Applications that can be used by students and teachers in learning, namely Comic Life and the Make Beliefs Comix application that free to used and accessed. This study applied by using the comic maker application. Furthermore, observation was made during the learning activity of students and teachers who used the app. The results are described in qualitative descriptive based on the observation. Comic maker app was able to elaborate and collaborate on some of the student’s abilities and knowledge at the same time. Then, this activity can be present into a work: visualization of images along with the story. In additional to attracted student and gave new spirit in learning, students are also increasingly skilled in operating computer device. Their language skill about selecting words and making sentences also can be trained. For the teachers, by using this application they can perform with more innovative and contemporary learning, not monotonous.
The development of motion comic storyboard based on digital literacy and elementary school mathematics ability in the new normal era during covid-19 pandemic
Authors: Karlimah K , Hamdu G , Pratiwi V , Herdiansah H , Kurniawan D 
Published: August 2021

Abstract
In this Covid-19 pandemic situation, educators are demanded to quickly adapt to a new approach one of which in terms of preparing online learning media that is in line with learning objectives and is digital-based. Motion comics are digital comics that are modified so that the character appears to move on each page; thus, they become more interesting than conventional comics. For this reason, this RnD research was conducted in order to create a representative motion comic. One of the stages in the development of a motion comic is the stage of creating a storyboard. This article will discuss in more depth the stages of making a motion comic storyboard with the learning topic about fractions by paying attention to the principles of excellent educational learning media as well as the characteristics of elementary school students. There are several stages of making a storyboard including conducting research, creating the story, writing scripts, writing the screenplay, drawing characters, creating a design environment, and making a storyboard. This research involved teachers, elementary school mathematicians, IT experts, and elementary school students. This storyboard is a reference in developing a motion comic prototype about fractions to improve the math skills of elementary school students.
The effectiveness of the use of interactive multimedia on the initial mathematics abilities of low grade students in elementary schools
Authors: Suri D , Rachmadtullah R 
Published: August 2021

Abstract
This study aims to determine how the effectiveness of the use of interactive multimedia on the initial low-grade mathematics ability in elementary schools. This research method uses a quantitative approach with experimental design, the sample in this study amounted to 40 low-grade students in elementary schools, the results of this study indicate that there is an effective early mathematics ability of low-grade elementary school students, because multimedia has attractiveness such as animated appearances, video appearances, so that students feel happy and interested in learning mathematics. Multimedia plays an important role in student motivation and students easily understand the basic material of elementary school mathematics concepts.
Correlation of self-efficacy on mathematical communication skills for prospective primary school teachers
Authors: Sumartini T S , Maryati I , Sritresna T 
Published: August 2021

Abstract
Self-efficacy and mathematical communication skills are important things for prospective mathematics teachers in elementary schools. The purpose of this study was to analyze the effect of self-efficacy on the mathematical communication skills of prospective mathematics teachers in elementary schools. The research method used a quasi-experimental with purposive sampling technique. The research sample was students majoring in Elementary School Teacher Education at the Institut Pendidikan Indonesia. The data was collected by giving written tests and questionnaires which were then analyzed using Spearman correlation. The results showed that there was a correlation between self-efficacy and mathematical communication skills of prospective elementary school teachers.
Application of GUI Matlab in physics: Planetary motion (Kepler’s Law)
Authors: Sari L , Guspita N , Srigutomo W , Amalia I F , Adimayuda R 
Published: August 2021

Abstract
This study aimed to create a teaching material using an application with a Graphical User Interface (GUI) provided on MATLAB. This teaching material is intended for Physics subject. Creating a GUI with MATLAB was made using the guide facility provided in MATLAB. The MATLAB GUI has a relatively small file size so that it can speed up the running program commands. This research aimed to create an application that is easy and effective to be used by users without having to understand the complexity of computing MATLAB. The application consists of a main menu, a GUI that can be run according to the materials needed by the users, as well as a menu to close the application. The physical matter contained in it is planetary motion (Kepler’s law). Physics learning materials that can be used as a reference in running the GUI program, e-modules containing procedures for creating the GUI by using MATLAB for learning, as well as the MATLAB source code used in every programming. For further research, the author expects the development of this study by using the e-module contained in the application as a material for creating GUI MATLAB.
The use of Talking Toys in reducing the cognitive loads of elementary school students in science learning
Authors: Nugraha W S , Suryaningrat E F , Widyaningsih Y I , Tetep T 
Published: August 2021

Abstract
This research aimed to reduce the intrinsic cognitive load of student in learning science subject by implementing Talking Toys media. The research conducted in one of the elementary school in Garut by using post-test only control group design. 60 student of class X become the sample of the research that divided into two Classes namely experimental and control class. Students intrinsic load was measured from students capacity in processing information. Data was obtained through essay test which compiled in the form of task complexity worksheet. Students learning result was measured by written test of their reasoning ability. The result shows that students who got treatment by talking toys media has higher ability in processing information compare to students who did not receive it. Research result illustrate that elementary school students intrinsic load while learning science subject in experimental class is lower than in control class. The low level of students intrinsic load has correlation with the high level of students learning result.
Ethnoscience-based science learning in elementary schools
Authors: Suryanti S , Prahani B K , Widodo W , Mintohari M , Istianah F , Julianto J , Yermiandhoko Y 
Published: August 2021

Abstract
Indonesia is rich in cultures encompassing the understanding of various values that must be learned by students. Learning based on a cultural perspective relating to natural phenomena in life is called ethnoscience. Surabaya as a metropolitan city has various cultures including Remo dance, batik, rujak cingur, lontong balap, fish preservation, and semanggi. There are many scientific concepts that can be explored through these cultures. This study aimed to explore scientific concepts through these cultures in elementary schools. This study used descriptive research design with transformative, verification, and knowledge conceptualization stages. Results showed that many scientific concepts extracted from ethnoscience, for instance in rujak cingur, were related to the concepts of friction force, healthy food, and physical and chemical changes. With ethnoscience-based science learning, students are expected to learn happily and master the science concepts easily.
A complex network framework for the efficiency and resilience trade-off in global food trade
Authors: Karakoc Deniz Berfin , Konar Megan 
Published: August 2021

Abstract
Global food trade is crucial for food security and availability. Trade is typically optimized to promote efficiency, whereas resilience is increasingly being recognized as another important objective. However, it is not clear if prioritizing resilience comes at the expense of efficiency or if the two objectives can be promoted simultaneously. We develop a complex network framework to assess the relationship between efficiency and resilience of food trade for the last half century. There is a competitive relationship between efficiency and resilience when only network topology is considered. However, a cooperative relationship between efficiency and resilience exists when the intensity of trade connections is accounted for. Policy makers can use this framework to evaluate the relationship between efficiency and resilience in critical supply chains.
The viability of Rhizopus microsporus APBSMLF19 on different substrates and its application as a starter culture in tempeh fermentation
Authors: Putri M K , Sari A M , Zaman M Z , Nursiwi A , Ishartani D , Lukitawesa  
Published: August 2021

Abstract
In addition to temperature and incubation time, inoculum is one of the key factors contributing to tempeh’s quality. At several regions in Java, usar, a traditional fungal inoculum obtained from teak leaves, is used for tempeh fermentation, however, there are some lacks in its application. Rice, cassava root and flour, as well as tapioca flour, were evaluated for their suitability as a substrate to support Rhizopus microsporus APBSMLF19 growth (fungi isolated from usar in Gunungkidul, Yogyakarta). About 100 ml/kg of 107 CFU/ml fungi suspension were inoculated to each substrate and incubated at 30 °C for 48 hours. After dried at 50 °C for ± 20 hours and mashed, the fungi viability was observed on weeks 0, 1, 2, and 4 during storage. The result showed no significant difference in the fungi’s number based on storage time for each starter culture’s type, but the inoculum exhibited different viabilities. However, there were no differences in texture measurements for all tempeh produced by using experimental and commercial starter culture (RAPRIMA®). Increasing the culture’s storage time for viability test is required in future research.
Organic Vegetable Sustainability Strategies of Youth Farmer Groups
Authors: Suswadi  , Kartikasari Ratih Dwi , Harieni Setie 
Published: August 2021

Abstract
Sustainability simply focuses on meeting present needs, while considering future generations. Several organizations are passionate in providing adequate structures to drive this fundamental concept. In agriculture, youth farmer groups play a significant role in promoting sustainable technology adoption and innovation. Moreover, the success of these entities depends greatly on vital accomplishment as local institutions. This study was aimed at examining the internal and external factors influencing youth farmers’ performance and effective development strategies, using IFE, EFE, IE, and SWOT matrix. The results of internal factors showed the greatest contribution of human resources was dominated by productive youth farmers, while inadequate use of technology to disseminate information and promotion occurred as the major weakness. However, the outcomes of external factors reported an above average position, based on EFE matrix analysis, due to increased demand for organic vegetable products. Furthermore, the maximum threat faced by these persons is assuming agriculture as not a lucrative sector. Overall, the conditions of youth farmer groups demonstrated a robust importance in maximizing potential opportunities and minimizing the existing threats.
The Effect of Seaweed Extract (Sargassum sp.) on Growth and Yield Enhancement of Mustard Greens (Brassica juncea L.)
Authors: Yusuf R , Laude S , kurniawati T , Syakur A , Kalaba Y , Maemunah  , Ramli  
Published: August 2021

Abstract
This research aims to study the effect of applying various seaweed extract concentrations on mustard greens growth and yield (Brassica juncea L.). The study was conducted at the Faculty of Agriculture Screen House, University Tadulako Palu, and arranged using a randomized block design (RBD) with six treatments. These were, without seaweed extract (E0), as well as 20% (E1), 40% (E2), 60% (E3), 80% (E4), and 100% (E5) seaweed extract concentration. The experiment was repeated four times, thus, there were 24 experimental units. Subsequently, the data obtained were analyzed using analysis of variance, followed by Honest Real Difference at level 5%. The results showed seaweed extract with different concentrations significantly influenced plant height, leaf number, leaf area, fresh weight, and dry weight.