bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diversity and distribution of ferns at different altitudes in Central Java
Authors: Sianturi A , Ridlo S , Retnoningsih A 
Published: June 2021

AbstractFern is one of the vegetation that makes up the forest ecosystem in low, medium, and highland areas. This study aimed to analyze the diversity of ferns in Central Java at different heights. The research zone consists of zone I lowlands (Pagerwunung Nature Reserve, Darupono, Kendal, 100-300 masl), zone II medium plains (Forest Penggaron, 300 - 800 masl), and zone III highlands (Forest Mount Ungaran and Mount Lawu). The results showed that the diversity of plants in the zone I consisted of 8 families with 15 species, zone II consisted of 3 families with 23 species, and zone III consisted of 18 families with 32 species. The highest distribution of ferns diversity was in zone III because the increasing altitude causes the soil condition to become more humid. After all, forest trees provide water composition for the soil, lower temperatures make high air humidity, and light intensity is a suitable bioecological factor for all ferns’ habitat.
Comparison the effectiveness of the fumigants sulfuryl fluoride and phosphine in controlling warehouse pest insects
Authors: Subekti N , Syahadan M A 
Published: June 2021

Abstract
Warehouse pest insects contained in commodities can affect the quality and quantity of the commodity. Every industry which has a commodity stored in warehouses makes efforts to prevent damage to the commodity. Control of insect pests during storage is generally conducted by fumigations with phosphine (PH3) and sulfuryl fluoride (SO2F2). This study aims to analyze and compare sulfuryl fluoride and phosphine fumigants in controlling pest insects in the animal feed industry warehouses in Semarang, Central Java. The test insects used are all kinds of insects found on piles of commodities that will be fumigated. The test used is the mortality test. Observations are carried out before and after fumigation takes place. The one-way ANOVA with the Tukey follow-up test was employed to analyze the data. There was a difference in the average mortality of warehouse pest insects between treatments and the highest mortality rate in fumigation using sulfuryl fluoride. Thus, fumigants sulfuryl fluoride and phosphine can affect the mortality of warehouse pest insects. Fumigation using sulfuryl fluoride is easy to apply, more effective, and exposure time is faster compared to phosphine.
The development of andro-webcomic media based on problem-based learning to improve analytical thinking ability and scientific attitude
Authors: Sujatmiko Y A , Isnaeni W , Ridlo S , Saptono S 
Published: June 2021

Abstract
The research aimed to describe the validity, practicality, and effectiveness of Andro-Webcomic media based on problem-based learning as a learning media to improve students’ analytical thinking ability and scientific attitudes. The development design used was Research and Development (R&D) and used the ADDIE model, limited to the ADD (Analysis, Design, Development) stage. At the product development stage, small-scale trials are carried out, which this phrase was limited to 9 students of class XI MIPA at one of the high schools in Jepara. The instruments used were validation sheets, test sheets, observation sheets for students’ scientific attitudes, student and teacher questionnaire responses. The results of this study indicate that: (1) the validity of the Andro-Webcomic media is 95.58%; (2) effective in improving analytical thinking of 88.89% with an n-gain score of 67% and a scientific attitude of 87.19%; (3) practicality based on student responses of 98.39% and teacher responses of 97.36%; (4) media component that supports improving competencies is on the webcomic and investigation menu. Based on the research results, it can be concluded that the Andro-Webcomic media is valid, practical, and effective in improving students’ analytical thinking ability and scientific attitudes.
Determination of seed plant in Jepara’s urban farming during the pandemic Covid 19
Authors: Oktafiani R , Widiatningrum T , Retnoningsih A 
Published: June 2021

Abstract
Seed plants have an essential role in meeting food needs for human survival. During the pandemic, many people used their yards to plant various seeds. Urban farming activities improve people’s lives by creating healthier and environmentally friendly lifestyles and contributing to food security. This study aims to determine the types of seed plants in urban farming activities and determine the use of seed plants for food security. The research was conducted in East Jambu Village, Jepara Regency. This type of research is exploratory observation. The sampling technique was purposive sampling to select urban farming houses with various types of plants. The results of the study of 5 house samples showed 20 families in 32 species of seed plants. The use of seed plants with the potential as foodstuffs consists of staple foods, cooking spices, vegetables, fruits, nuts, tubers, and herbs. Topographically, Jambu Timur Village is located in the lowlands with an altitude of 0.0 m to 75 masl. Utilization of potential land in the lowlands consists of 1) Utilizing dry land for growing vegetables and secondary crops 2) Use of irrigated rice fields to plant rice or other similar crops. 3) Use of plantations to produce fruit.
Specimen management of the genus Lygodium (Pteridophytes) in the biota collection room, Universitas Indonesia (ruang koleksi biota UI/RKB UI), Depok
Authors: Putri R A , Atria M , Putrika A 
Published: June 2021

Abstract
Herbarium specimens play an extra role nowadays. Aside from its traditional taxonomical function, they are also an important data source for ecology, ethnobotany, mapping, and biogeography studies. In modern herbarium management, the specimens have been made more accessible to society through the digitizing process so that all specimens act as learning media. The University of Indonesia collection room or Ruang Koleksi Biota Universitas Indonesia (RKB UI) harbor spirit collections, carpology, and dried herbarium specimens collected from various student activities in botanical studies. In this study, Lygodium collection in RKB UI is revitalized. This study aims to revitalize all specimens with three steps of workflows, (1) Re-examining all taxonomical properties (taxonomic validation), (2) repairing herbarium sheets, and (3) digitizing all specimens (documentation and databasing). All 86 specimens recorded as Lygodium flexuosum, Lygodium scandens, Lygodium circinnatum, Lygodium microphyllum, Lygodium sp., and unidentified specimens were successfully reidentified into 3 species Lygodium flexuosum (L) Sw., Lygodium microphyllum (Cav.) R.Br., Lygodium circinnatum (Burm. F) Sw. Validation resulted in the moving of 80 specimens formerly placed in Schizaeaceae into Lygodiaceae, while 6 remaining specimens did not receive any validation treatment. All but one specimen has been improved into a representative specimen (one specimen already in good condition). Digitizing was done by documenting each photographed specimen, recording all taxonomical data in a worksheet, and storing both documents as a database on the RKB UI website.
Comparison the effectiveness of the fumigant phosphine to control warehouse pest insects in soybean seed and bird feed commodities
Authors: Subekti N , Syahadan M A , Mahsusoh A K 
Published: June 2021

Abstract
The presence of insect pests of warehouses can affect the quality of commodities stored in warehouses. One of the chemicals used for pest control is phosphine. The purpose of this study was to analyze the influence of fumigation process with phosphine fumigant on soybean seeds and bird feed that can be seen from the death of pests in storage warehouses in Semarang, Central Java. Identification is carried out in animal taxonomy laboratory, State University of Semarang is carried out by calculating pest death in each type of commodity. after the data is collected, a one-way ANOVA is involved to analyze the data. Phosphine fumigants are very effective for killing warehouse pests insects especially Tribolium castaneum and Ephestia cautella in soybean seed and bird feed commodities. For future warehouse pest control it is recommended to use biopestiside to be safer for food safety.
Fungi in Selo hiking trail of mount Merbabu national park Central Java
Authors: Hafizhasando R , Rahayuningsih M , Parmin S Saptono 
Published: June 2021

Abstract
Mount Merbabu National Park has the potential for abundant biodiversity in natural forest vegetation, including flora and fauna. The purpose of this study was to explore and identify fungi in Mount Merbabu National Park on Selo Climbing Lane, Boyolali, Central Java. The research was conducted in January until April 2020 on Selo Climbing Lane, Boyolali. This research was exploratory by using Cruise Methods, which explored the hiking trail at 1800-2571 meters altitude. Sampling was carried out every time the fungi were identified, and it was done when the same fungi were found. Identification was made by recording morphological characteristics, habitus, and the substrate through qualitative descriptive. The results showed that the 52 identified species of fungi belonged to the 26 families of fungi. The most common fungi are the Polyporaceae family, which consists of 5 species, namely: Trametes versicolor, Trametes polyzona, Polyporus sp, Polyporus versicolor dan Ganoderma applanatum.
Effect of lead on growth and physiological responses of Hanjuang plant (Cordyline fruicosa)
Authors: Herlina L , Widianarko B , Sunoko H R 
Published: June 2021

Abstract
The research aimed to analyze the growth and physiological response of Cordyline fruicosa plant. In this study, plants were grown on soil contaminated with lead at various concentrations. The parameters observed included leaf area, the leaves number, stem dry biomass, leaf and roots, photosynthetic pigment, and antioxidant enzyme activity (CAT and APX) which were analyzed after 60 days. The results were plants growth, dry biomass, and photosynthetic pigments decreased with the increasing of lead concentrations while the activity of ascorbate peroxidase (APX) and catalase (CAT) increased. This study signifies the potential of C. fruicosa for lead tolerance.
The diversity of moss in the Cemoro Kandang hiking trail, Mount Lawu and the Baturraden botanical gardens, Central Java
Authors: Muamar A , Anggraito Y U , Retnoningsih A 
Published: June 2021

Abstract
Moss plants in tropical mountain forest areas play an essential role in water balance and the forest’s nutrient cycle, serving as a substrate, food source, and a place for forest organisms to live. This study aims to analyze the diversity of moss plants in Mount Lawu and Baturraden Botanical Gardens based on the height of the place and substrate type. Moss plants were observed along the Cemoro Kandang hiking trail and around the Baturraden Botanical Garden. A total of 30 species of mosses consisting of 19 species of true mosses, 10 species of liverworts, 1 species of hornworts. The moss plants on the hiking trail are included in 13 orders and 20 families. There are 13 species of mosses found in the Baturraden Botanical Garden, including 7 orders and 10 families, including 8 species of true mosses, 4 species of liverworts, and 1 species hornworts. The highest moss species diversity at the two locations is true mosses (Bryophyta). Most of the mosses are terrestrial mosses. True mosses are evenly distributed in the highlands rather than the lowlands.
Orchid diversity in Kalisegoro village Semarang city, Indonesia
Authors: Martuti N K T , Habibah N A , Arifin M S , Mutiatari D P , Istantri D 
Published: June 2021

Abstract
Kalisegoro Village is one of the sub-districts in Semarang City, which is proclaimed a thematic village with the theme “super orchid village.” The number of individuals and orchid species cultivated by the Kalisegoro Village community has increased since the community empowerment carried out by PT Phapros and UNNES, which began in 2017. Data on the orchids species in Kalisegoro Village, both wild orchids and orchids cultivated by the community, are currently unavailable. This study aims to analyze the diversity and taxonomic identification of orchid species in Kalisegoro Village. A total of 30 orchids species from 14 genera were recorded from this area. D. bigibbum is the most dominant species with an Importance Value Index (IVI) of 34.5%. The Diversity Index (H’) analysis shows that the diversity of orchids in Kalisegoro Village is moderate, namely 2.59 with a fairly high-density index with a value of Dmg = 5.04. The evenness index value is E = 0.76, which means that the distribution of orchids in the research location is quite evenly distributed.
The effectiveness of Aloe vera peel extract on the reproductive status of streptozotocin-induced diabetic rats
Authors: Christijanti W , Juniarto A Z , Suromo L 
Published: June 2021

Abstract
Diabetes mellitus is a disorder in glucose metabolism that can cause complications in the reproductive organs. Aloe vera is a medicinal plant that has been widely used as an antidiabetic. The research objective was to analyze Aloe vera peel extract’s effect on motility, sperm concentration, and testosterone levels in diabetic rats. The study design was a post-test-only randomized control group design consisting of a diabetes control group (DM) and a group with peel extract at a dose of 200 mg (PE1) and 400 mg/kg body weight (PE2) for 4 weeks. Rats were diabetic with glucose levels > 200 mg/dl after 72 hours of induction of streptozotocin 65 mg/kg BW. Data in the form of motility, sperm concentration, and testosterone levels were analyzed using ANOVA and LSD tests. The results showed a significant increase in the motility of the PEI and PE2 groups compared to DM. Testosterone concentrations and levels were significantly increased in the PE1 and PE2 groups compared to controls. The conclusion that can be stated is that the peel extract of Aloe vera can increase motility, sperm concentration, and testosterone levels of diabetic rats.
Fig visitor’s behaviour in Ungaran mountain, Indonesia
Authors: Priyono B , Abdullah M , Febriyanto M N F , Bodijantoro P M H , Purwantoyo E 
Published: June 2021

Abstract
Figs (Ficus spp.) has important roles in an ecosystem, for instance as food source for frugivorous, especially birds. The aims of this study were to determine species richness of bird that commonly visited Ficus trees in Ungaran mountain area and analyze their behaviour in dietary among fig visitors. This study used observatory method. Based on preliminary observation, we determined eight species of Ficus tree as samples to be observed according to fruit size and its availability during study. Observations were conducted at 6 - 10 am and 3 - 5 pm. Based on the results, we found 29 species of birds from 16 families and one mammal species who visited Fig trees. The observations showed four different bird activities: only perched, eating fig, eating insects, and eating fruit and insects. Ordination analysis resulted that inter-specific interactions among figs frugivorous tend to use niche partitioning mechanism based on different arrival time and canopy position. This mechanism minimizes the occurrence of competition in obtaining similar resources.
Implementation of Project Based Learning Based on STEM Approach to Improve Students’ Problems Solving Abilities
Authors: Sarwi S , Baihaqi M A , Ellianawati E 
Published: June 2021

Abstract
This study aims to analyse the improvement of the problems solving abilities by implementing project-based learning with a STEM approach using a distance learning strategy. This research method is a pre-experimental pretest-posttest one group design. The population of this research was the 5th-grade students of Magelang Elementary School in 2019/2020. The sample selection using purposive random sampling with 78 students. The research subjects were elementary school students with symbols A, B, C, and D located in several areas of the City of Magelang, Central Java. Data collection techniques used in this study are tests of problemsolving ability and observation. Quantitative data analysis techniques used were gain normality test and one-sample t-test. The results showed that the problem-solving ability of students increased significantly with a gain factor is 0.44 (enough), a one-sample t-test with a sig (2-tailed) is 0,121 (significantly) and the results of observations of the implementation of learning are 92% (very good). In other words, the project-based learning based on STEM approach with distancing learning strategies could significantly improve students’ problems solving abilities.
Enhancing student achievement using the fungi learning media supported by Numbered Head Together learning
Authors: Sinambela C , Sirait S H K N , Nasir I R F , Damopolii I 
Published: June 2021

Abstract
Even more paper waste was generated daily. It is coming from the workplace or other. In biology topics, paper waste can be reform into learning media, e.g., in fungi topics. The Numbered Head Together (NHT) model can support its application in learning. Examine the effectiveness of fungi learning media supported by NHT learning models to enhance student achievement was the aim of this research. Classroom action research was being used. Eighteen grade X students in a private school were research subjects. Observation sheets were used to observe student activities, while the test was used to measure student achievement. The data were analyzed using the percentage. The results showed that students’ activities in the first cycle were 88.09%, and the second cycle was 94.05%. In the first cycle, student achievement was 44.44%, and in the second cycle increased by 38.89 to 83.33%. Findings revealed that student activities and progress could be enhancing by implementing fungi learning media supported by the NHT learning model. Learning media made from paper waste can be used by teachers to improve their students’ performance.
Analysis of Higher Order Thinking Skills (HOTS) Content of SBMPTN Physics Problems
Authors: Amalia R F , Wahyuni S 
Published: June 2021

Abstract
LTMPT claimed that the entrance test for public university contained several problems that require higher-order thinking skills meanwhile the high school students were more familiar with lower-order thinking skills items. The challenge for students was that they have to know the type of questions that were going to be used for entrance test and at the same time, they still have to work on the national exam level to graduate from the high school. This study aimed to find out the type of items on SBMPTN physics problems based on Bloom’s taxonomy and the characteristics of the items based on indicators of critical thinking skills and problem-solving. This research was a qualitative research used to study the SBMPTN physics problems from 2016, 2017, and 2018. The study result showed that both 2016 and 2017 had 46.67% of HOTS items based on revised Bloom taxonomy, and then in 2018 the number increased to 73.33%. Meanwhile for the critical thinking categories, the test in 2016 had 46.67% of the problems and it increased to 66.67% and 80% for the next two years. Lastly, the finding of problem-solving skills indicators in the SBMPTN physics problems were at 60%, 46.7%, and 60% in 2016, 2017, and 2018.
Identify misconception with multiple choice three tier diagnostik test on newton law material
Authors: Rusilowati A , Susanti R , Sulistyaningsing T , Asih T S N , Fiona E , Aryani A 
Published: June 2021

Abstract
Knowing the location of students ‘misconceptions is one of the conditions for success to remediate students’ misconceptions. An appropriate and effective way to identify the students’ misconceptions is using a three-tier diagnostic test. After the students’ misconceptions are identified, misconceptions are remediated using the conceptual change learning model. The purpose of this research is to identify misconceptions that are often experienced by students and their causes related to the concept of Newton’s Law, describe how to remedy misconceptions of Newton’s laws, and test the effectiveness of conceptual change learning models in remediating Newton’s misconceptions experienced by students. This type of research is a mixed methods of concurrent embedded models with quantitative methods as primary methods, and qualitative methods as secondary methods. The pre-test results showed that the percentage of students’ misconceptions on Newton’s first, second, and third law concepts, solving, and applying were less than 60%. These misconceptions can be remediated by applying the Conceptual Change Learning Model. There was a decrease in the average percentage of the misconception of Newton’s law from 50.9% to 25.9%. Therefore, the conceptual change learning model is considered effective in remediating the misconceptions of Newton’s law experienced by students.
Learning using real science mask with qr code to increase students’ digital literacy
Authors: Savitri E N , Dewi N R , Amalia A V , Prabowo S A 
Published: June 2021

Abstract
The Industrial Revolution 4.0 demands the use of technology in every aspect, including in education. One of the efforts to prepare human resources in the field of education is the government policy regarding “Independent Learning: Independent Campus”. Higher education graduates will be required to master various fields of science and be flexible in developing independence when seeking and finding knowledge. This requires good digital literacy skills. Real Science Mask with QR Code is a learning media which connected to Google classroom and make a concrete science concept. The research method was carried out by developing a product in Real Science Mask with a QR Code which will be tested for its validity and the effectiveness of the product in learning. The final data analysis was carried out by analyzing the students’ digital literacy scores. Students’ digital literacy skills using Real Science Mask with QR Code were in the high category of 71.43% and the medium category of 28.57%. The results of the study were also supported by a good response from students of 57.14%. It concluded that learning using the Real Science Mask with the QR Code model is effective in improving the students’ digital literacy skills.
Student physics literacy on gas power plants
Authors: Rochman C , Nasrudin D , Juwita A R , Fitriyanti N 
Published: June 2021

Abstract
The electricity we use comes from generators. Not everyone understands how electricity is generated and how it can flow into homes. This paper wants to reveal the concepts and phenomena of physics in gas power plants and how the level of student literacy is about it. This research is a preliminary study using observational methods, surveys, and literature studies. The results showed: (1) there are many electricity concepts found in gas power plants (2) Student literacy related to the working principles of gas power plants is still low. This study concludes that many physical concepts can be explained when electricity is produced at a gas power plant that must be taught to students. This study recommends the importance of efforts to increase student literacy through learning contextual physics.