bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychological Effects of Interactive Multimedia Based On Scientific Approach in Science Teaching and Learning
Authors: Syafril S , Puspasari V , Supriyadi  , Pahrudin A , Wekke I S , Aini N R 
Published: March 2020

Abstract
This study aimed to analyze the psychological effects of interactive multimedia based on scientific approaches in science teaching and learning for junior high school students. Research and Development is used as a research method, involving three experts as validators for assessing the rightness of material, language, and media, as well as 48 students and one science teacher assessing the rightness of interactive multimedia that is created. Expert assessment of Psychological effects is interactive multimedia collected using validation sheets, student and teacher assessments were carried out using a questionnaire. Data were analyzed using descriptive statistics aided by Statistical Package for The Social Sciences (SPSS windows 22.0). The results showed that material experts, media, languages, as well as teachers and students rated interactive multimedia based on scientific approaches in science teaching and learning to provide Psychological effects in science learning (values in sequence as follows; material = 89%, media = 86%, language = 75%, students = 85% and teacher = 92%).) This result shows that interactive multimedia based on scientific approach can be used as an alternative as a standard in science learning in secondary schools.
Exploring Teacher’s Pedagogical Content Knowledge Improvement: The Opportunity and Challenging of Integrated STEM Learning Approach for Non-STEM Majors
Authors: Raja P. , Abdurrahman  , Setiyadi A.B. 
Published: March 2020

Abstract
The urgency of developing pedagogical content knowledge (PCK) had been investigated in many studies. This was in line with the emerging trend of STEM learning approaches recently. We explored non-STEM teacher’s PCK improvement, where teachers teach in the fields of study that lead to disciplines of science, technology, mathematics, and engineering in an integrated manner. However, only a few studies have reported perceptions of non-STEM teacher’s perception towards their PCK that were associated with the implementation of an integrated STEM-based approach. This study was aimed to explore non STEM teacher’s PCK improvement that was related to the integrated STEM learning approach. We used explanatory mixed method design to collect the data, then the data were analyzed using qualitative descriptive technique. Results indicated that teachers’ PCK improvement reached the satisfying expectation. Their PCK were increased in STEM dimension even though they were actually from non-STEM majors. However, this study only revealed that teachers’ beliefs about PCK were related to the STEM approach. Further research should have reached the form of PCK actualization that can be shown by the teacher.
Exploring Students’ Perceptions of Science, Technology, Engineering, and Mathematics (STEM) in Education and Future Careers Fields
Authors: Irfiandaru R N , Abdurrahman  , Nurulsari N 
Published: March 2020

Abstract
Student’s understanding of STEM was a successful key in improving student achievement and STEM employment in the next ten years. This research was aimed to describe students’ perceptions of STEM education and career. We used explanatory mixed method design. This research involving 315 senior high school students in Bandar Lampung. We adopted Perception of STEM Education and Career (PSEC) Questionaire, interview protocol, and voice recording devices. We analyzed the data by categorizing, tabulating, and validating the data. The result showed that students’ perceptions about STEM education, based on the school location indicated positive perceptions, but based on the comparison of male and female students’ perception, male students prefered to express negative responses in STEM learning interest, and based on the comparison of learning style (audio, visual, and kinesthetic) students perceptions, kinesthetic students perceptions, kinesthetic students prefered to express negative responses in STEM learning interest. Furthermore, the students’ perceptions about STEM careers, based on the school locations, gender, and differences in learning styles indicated positive perceptions.
Development and Validation of students’ Worksheet Based on Guided-Inquiry to Improve Students’ Scientific Literacy Skills of Junior High School on Straight Motion Concept
Authors: Sari R.R. , Abdurrahman  , Herlina K. 
Published: March 2020

Abstract
The student worksheet that is currently used generally contain material and questions. A student worksheet is only used on certain materials, so it has not been an effective teaching material. This research aims to develop guided inquiry-based worksheets to improve the ability of Scientific literacy in straight-motion material. The method used in this study is research and development. The research design used in this development refers to Lee and Owens with stages consisting of analyzing, design, development, implementation, evaluation. The worksheet developed has very high validity. This can be seen based on the average score on the material expert test of 0.90 with very high validity criteria and the design expert test obtained an average score of 0.90 with very high validity criteria. Based on the readability test obtained an average score of 0.85 with a very good category. The worksheets developed have been able to improve students’ scientific literacy abilities. This can be seen from the n-gain test results of 0.8 with high criteria, and sig values. in the paired sample t-test of 0,000. Teachers and students also give a good response to the worksheet. The conclusions of this study are valid guided inquiry-based worksheets to improve students’ literacy skills.
Environmental life cycle assessment of cowpea production, storage and disposal in Ilorin, Kwara State, Nigeria
Authors: Ogunjirin O C , Jekayinfa S O , Olaniran J A , Ogunjirin O A 
Published: March 2020

Abstract
Life cycle assessment (LCA) was developed to estimate the environmental impacts of industrial production processes and systems. This paper assessed the environmental impacts associated with the production, storage and disposal of cowpea grains in Ilorin, Kwara state, Nigeria, and proffer ways of improving and reducing some of the environmental impacts associated with the system. Three scenarios were created in the cowpea study; production and storage in an inert atmosphere silo, hermetic storage, and cold shock (freezer) storage respectively. The inventory data obtained from the scenario was analysed using Gabi 8.7 think step 2018 version. From the cradle-to-grave research study and Centre of Environmental Science (CML) methodology used, it was obtained that the Global Warming Potential (GWP) for the three scenarios were 6.7, 6.46, and 8.82 kg CO2-equivalent for inert, hermetic and cold shock respectively. Acidification Potential (AP) values for the three scenarios were: 0.0105, 0.01 and 0.0121kgSO2 equivalent respectively, Eutrophication Potentials (EP), were 1.68, 1.56, and 2.012e-3kg phosphate equivalent respectively. Ozone layer depletion potential (ODP) gave same values each in the scenarios with 9.99e-13kgR11 equivalent, and human toxicology potential (HTP) values for each were 0.181, 0.151 and 0.24kg DCB equivalent respectively. Diesel and petrol fuel used for tillage and post farm operations respectively were major hotspots in the scenarios. Based on the emissions value and characterization factor from each scenario, inert storage and hermetic storage are recommended for environmentally friendly storage over cold shock storage in the cowpea scenario.
Proximate composition and physicochemical properties of formulated cassava, cowpea and potato flour blends
Authors: Olaniran A F , Okonkwo C E , Owolabi A O , Osemwegie O O , Badejo T E 
Published: March 2020

Abstract
Most children are underfed due to current economic dispensations. Cassava is one of the cheapest, most popular root, and tuber crops in Africa. Cowpea is gaining preferential attention as the potential nutritional and flavouring additive in food formulation due to its nutritional benefits. This study explored the formulation of weaning food with cassava-cowpea-potato blends (CCP). Cassava flour (50%) was the same while cowpea and potato flour percentages were varied at 50:0%, 40:10%, 30:20% and 20:30% resulting in 4 blends. The titratable acidity, pH, qualitative screening of phytochemical (saponins, terpenoids and tannin), minerals (calcium, phosphorus contents) and proximate composition of formulated blends were evaluated. The protein content of the different blends ranged from 22.55 to 31.00 (g/100g). Increase in cowpea addition to the blend were directly proportional to the protein, calcium and phosphorus content which varied from 9.02 to 12.40%, 9.55 to 1.45 (mg/100g) and 3.10 to4.55 (mg/100g) respectively in the blends. The moisture levels of the blends were lower than 10.50%. The phytochemical analysis revealed the absence of saponins and tannin in the blends. The formulated CCP blends can be prepared domestically to complement or replace the more expensive diets for children to achieve healthy and well-nourished children.
Daily activities and feeding behavior of a troop of Macaca fascicularis in Telaga Warna, West Java, Indonesia
Authors: Julianti S , Rianti P , Widayati K A 
Published: March 2020

Abstract
Long tailed macaque (Macaca fascicularis) has wide ecological plasticity to adapt and interact in various habitats. This ecological plasticity can be reflected on their daily activities and feeding behavior. This study aimed to analyze the daily activities and feeding behavior of Troop B of M. fascicularis in Telaga Warna. This troop is often seen to stay near by the big street and fed by human with provisioned food. We observed and recorded daily activity and feeding behavior of the troop. This study resulted that this troop spent most of their time on moving activity (35.85%), followed by feeding (25.41%) and resting (19.96%). We analyzed their daily activities both on weekdays and weekend plus holiday time to see the different frequencies of activity among those types of days. The macaques showed higher percentage on moving during the weekend (40.97%) compared with weekdays (30.74%). The high percentage of moving was related to their movement to find articifial food from people. The troop also showed high dependency to artificial food, by consuming provisioned food (68%). This study provide new data about a troop of macaques in Telaga Warna which can be used as a basic data for conservation management of long tailed macaque.
Antifeedant properties of fractionation Lantana camara leaf extract on cabbage caterpillars (Crocidolomia pavonana fabricius) larvae
Authors: Melanie M , Hermawan W , Kasmara H , Kholifa A H , Rustama M M , Panatarani C 
Published: March 2020

Abstract

Lantana camara is known as a noxious weed but it has the potential for pest control. Currently, the insect pest of cabbage (Crocidolomia pavonana) larvae reported has been resistant to certain synthetic insecticides. The fractionation L. camara leaf extract has been extensively studied to find out the phytochemical active constituents and bioactivity on C. Pavonana larvae. The antifeedant active fraction and the minimum effective concentration were investigated. The fractionation using polar (ethanol), semipolar (ethyl acetate), and nonpolar (n-hexane) solvents were tested on 4th instar of C. Pavonana larvae. Experimentally choice and no-choice antifeedant tested was carried out with 7 concentration levels: 0 ppm (control) and 500-5000 ppm (treatments) exposed 24 hours with 4 replications. The parameters were mean leaf areas consumed and analyzed using Mann-Whitney U non-parametric. The results were showed that ethyl acetate fraction was an active antifeedant fraction on the 3rdinstar larvae of C. pavonana, the minimum effective concentration was 1000 ppm in both of antifeedant test, and the ethyl acetate fraction at 1000-5000 ppm was considered in good deterrents category. The phytochemical constituents of ethyl acetate fraction including alkaloids, saponins, and steroids that potentially as antifeedant against the 4th instar larvae of C. pavonana.
Strategy for increasing lowland rice productivity in West Java Province with the SWOT-AHP model approach
Authors: Ariyana R , Amalia R , Salsabilah D S , Uka A S , Rilisa C , Gunawan W 
Published: March 2020

Abstract
The high production and consumption of rice in Indonesia show that rice commodities are not the only concern of producers’ interests but also consumers’ needs. If there is a rice crisis, there will be a food crisis that will affect other social problems. West Java has great potential to become a center for rice production in Indonesia. This study uses a combined method called Analytical Hierarchy Process (AHP) and SWOT Analysis - AHP. The results of the study indicate that the role of Gapoktan and farmer regeneration are very important consideration factors for the development of lowland rice commodities in West Java. In this case study, it was proven that the combination of SWOT and AHP methods can be used to measure the priority of factors in the SWOT analysis.
Hydrothermal biosynthesis of chromium sulphide nanoparticles using egg yolk and its catalytic activity in degradation of dyes
Authors: Kulkarni Swapnil , Gharpure Saee , Sur Ujjal Kumar , Ankamwar Balaprasad 
Published: March 2020

Abstract
Wastewater generated from industries consists of non-fixed dyes contributing to environmental pollution. Use of nanotechnology is being exploited for efficient degradation of dyes. Chromium sulphide nanoparticles have potential biological applications such as ion-selective membrane electrodes and probes for colocalization of membrane proteins. The biosynthesis of chromium sulphide nanoparticles by a high temperature hydrothermal approach has been reported herewith using chromium trioxide as the source of chromium and egg yolk (yellow) as the natural source of sulphur. Catalytic efficiency of chromium sulphide nanoparticles calcinated at 400 °C and 1000 °C has been tested for degradation of congo red, eosin Y, methylene blue as well as bromo cresol green of as prepared solutions and at acidic pH (pH 2.0).
Beyond the qualitative description of complex magnetic nanoparticle arrays using FORC measurement
Authors: Zamani Kouhpanji Mohammad Reza , Stadler Bethanie J H 
Published: March 2020

Abstract
First-order reversal curve (FORC) measurements are broadly used for the characterization of complex magnetic nanostructures, but they can be inconclusive when quantifying the amount of different magnetic phases present in a sample. In this paper, we first establish a framework for extracting quantitative parameters from FORC measurements conducted on samples composed of a single type of magnetic nanostructure to interpret their magnetic properties. We then generalize our framework for the quantitative characterization of samples that are composed of 2–4 types of FeCo magnetic nanowires to determine the most reliable and reproducible parameters for a detailed analysis of samples. Finally, we conclude that the parameter with the best quantification potential, backfield remanence coercivity, does not require the full FORC measurement. Our approach provides an insightful path for fast, quantitative analysis of complex magnetic nanostructures, especially determination of the ratios of magnetic subcomponents present in multi-phase samples.
Patterns of hybridization and cryptic introgression among one- and four-needled pinyon pines
Authors: Buck Ryan , Hyasat Sandra , Hossfeld Alice , Flores-Rentería Lluvia 
Published: March 2020

AbstractBackground and AimsPinyon pine hybridization is widely acknowledged, but the frequency of and contributors to such interspecific mating remain largely unstudied. Pinus quadrifolia has three to four needles per fascicle, suggesting that it is a result of hybridization between the five-needled P. juarezensis and the single-needled P. monophylla. In this study we address the taxonomic validity of P. juarezensis, the hybrid origin of P. quadrifolia and the presence of hybridization and intermediate morphology as a result of interspecific hybridization in this complex.MethodsWe address these questions by combining a genomic and morphological approach. We generated 1868 single nucleotide polymorphisms (SNPs) to detect genetic clusters using principal co-ordinates analyis, discriminant analysis of principal components, fastSTRUCTURE and ADMIXTURE analyses, and performed a morphological analysis of the leaves.Key ResultsWe found that the five-needled pinyons did not differ genetically from the four-needled P. quadrifolia, reducing the status of P. juarezensis to P. quadrifolia. We also found no evidence that P. quadrifolia is of hybrid origin from P. juarezensis × P. monophylla but is instead a genetically distinct species with natural needle number variation that has yet to be explained. Hybridization does occur in this complex, but mostly between P. quadrifolia and P. californiarum, and less commonly between P. quadrifolia and P. monophylla. Interestingly, some hybrid derivatives were detected between both single-needled taxa, P. monophylla and P. californiarum, a hybrid combination that has not yet been proposed. Hybrids have intermediate morphology when they have similar genetic contributions from both parental species; however, when one parent contributes more, hybrid derivatives resemble the parent with higher genetic contribution, resulting in cryptic introgression.ConclusionsOur detailed sampling across the distribution of this complex allows us to describe the patterns of hybridization among these taxa, resolves an ancient taxonomic conflict and provides insights into the challenges of exclusively using morphological traits when identifying these taxa with cryptic hybridization and variable morphology.
Pollen adaptation to ant pollination: a case study from the Proteaceae
Authors: Delnevo Nicola , van Etten Eddie J , Clemente Nicola , Fogu Luna , Pavarani Evelina , Byrne Margaret , Stock William D 
Published: March 2020

AbstractBackground and AimsAnt–plant associations are widely diverse and distributed throughout the world, leading to antagonistic and/or mutualistic interactions. Ant pollination is a rare mutualistic association and reports of ants as effective pollinators are limited to a few studies. Conospermum (Proteaceae) is an insect-pollinated genus well represented in the south-western Australia biodiversity hotspot, and here we aimed to evaluate the role of ants as pollinators of C. undulatum.MethodsPollen germination after contact with several species of ants and bees was tested for C. undulatum and five co-flowering species for comparison. We then sampled the pollen load of floral visitors of C. undulatum to assess whether ants carried a pollen load sufficient to enable pollination. Lastly, we performed exclusion treatments to assess the relative effect of flying- and non-flying-invertebrate floral visitors on the reproduction of C. undulatum. For this, we measured the seed set under different conditions: ants exclusion, flying-insects exclusion and control.Key ResultsPollen of C. undulatum, along with the other Conospermum species, had a germination rate after contact with ants of ~80 % which did not differ from the effect of bees; in contrast, the other plant species tested showed a drop in the germination rate to ~10 % following ant treatments. Although ants were generalist visitors, they carried a pollen load with 68–86 % of suitable grains. Moreover, ants significantly contributed to the seed set of C. undulatum.ConclusionsOur study highlights the complexity of ant–flower interactions and suggests that generalizations neglecting the importance of ants as pollinators cannot be made. Conospermum undulatum has evolved pollen with resistance to the negative effect of ant secretions on pollen grains, with ants providing effective pollination services to this threatened species.
Challenges in the diagnosis and discovery of rare genetic disorders using contemporary sequencing technologies
Authors: Seaby Eleanor G , Ennis Sarah 
Published: March 2020

Abstract
Next generation sequencing (NGS) has revolutionised rare disease diagnostics. Concomitant with advancing technologies has been a rise in the number of new gene disorders discovered and diagnoses made for patients and their families. However, despite the trend towards whole exome and whole genome sequencing, diagnostic rates remain suboptimal. On average, only ~30% of patients receive a molecular diagnosis. National sequencing projects launched in the last 5 years are integrating clinical diagnostic testing with research avenues to widen the spectrum of known genetic disorders. Consequently, efforts to diagnose genetic disorders in a clinical setting are now often shared with efforts to prioritise candidate variants for the detection of new disease genes. Herein we discuss some of the biggest obstacles precluding molecular diagnosis and discovery of new gene disorders. We consider bioinformatic and analytical challenges faced when interpreting next generation sequencing data and showcase some of the newest tools available to mitigate these issues. We consider how incomplete penetrance, non-coding variation and structural variants are likely to impact diagnostic rates, and we further discuss methods for uplifting novel gene discovery by adopting a gene-to-patient-based approach.
EVICAN—a balanced dataset for algorithm development in cell and nucleus segmentation
Authors: Schwendy Mischa , Unger Ronald E , Parekh Sapun H 
Published: March 2020

Abstract

Motivation
Deep learning use for quantitative image analysis is exponentially increasing. However, training accurate, widely deployable deep learning algorithms requires a plethora of annotated (ground truth) data. Image collections must contain not only thousands of images to provide sufficient example objects (i.e. cells), but also contain an adequate degree of image heterogeneity.

Results
We present a new dataset, EVICAN—Expert visual cell annotation, comprising partially annotated grayscale images of 30 different cell lines from multiple microscopes, contrast mechanisms and magnifications that is readily usable as training data for computer vision applications. With 4600 images and ∼26 000 segmented cells, our collection offers an unparalleled heterogeneous training dataset for cell biology deep learning application development.

Availability and implementation
The dataset is freely available (https://edmond.mpdl.mpg.de/imeji/collection/l45s16atmi6Aa4sI?q=). Using a Mask R-CNN implementation, we demonstrate automated segmentation of cells and nuclei from brightfield images with a mean average precision of 61.6 % at a Jaccard Index above 0.5.
Disparities in Age-specific Morbidity and Mortality From SARS-CoV-2 in China and the Republic of Korea
Authors: Dudley Joseph P , Lee Nam Taek 
Published: March 2020

AbstractWe analyzed age-/sex-specific morbidity and mortality data from the SARS-CoV-2 pandemic in China and Republic of Korea (ROK). Data from China exhibit a Gaussian distribution with peak morbidity in the 50–59-year cohort, while the ROK data have a bimodal distribution with the highest morbidity in the 20–29-year cohort.