UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Mathematics learning during pandemic COVID-19 at Junior High School in Bukittinggi-Agam
No full textThe COVID-19 has become epidemic in the world at the end of 2019. It has impacted all sectors including education. The learning process that initially took place in the school has now been switched virtually. However, this worsens the students understanding in learning mathematics because previously they found it difficulties even in offline learning activities. Describing the learning proces during this pandemic condition is necesary and important to cope with this problem. The problems during this pandemic are related to three domains, namely cognitive, affective and psychomotor. Therefore, a research about this should be conducted. The method was qualitative research by interview and questionnaire. The participants were ten teachers and ten students from different junior high schools in Bukittinggi and Agam. From cognitive aspect, the result found that students could more easily understand the subject matter delivered by the teacher before the pandemic; the percentage of students\u27 understanding of the material learning decreased by 10% during pandemic. From psycomotor aspect, teachers rarely use instructional media during the online learning process; The use of learning media also decreased by 60%, but the percentage of using online media as a learning resource increased by 50%. Moreover, the difficulty of using learning media for student increased by 40%. From affective aspect, teachers are more flexible in giving punishment to students who are not disciplined and educate students’ behaviors before pandemic than during the online learning process. Teacher gives punishment for students who were not disciplined decreased by 50% after virtual class. Overall, assessment done by teacher tends to the cognitive aspects during pandemic
The Relationship Between a Linear Equations System of COVID-19 and the Faithfulness to Allah SWT
No full textIn Islam, mathematics can be used and applied in worship and muamalah. One of them is a system of linear equations. The Corona Virus Disease pandemic or better known as the COVID-19 is a disease that still be pandemic in every country. A person’s devotion of Allah SWT can be influenced by an event. In this study, we will present the relationship between system of linear equations in the COVID-19 case and person’s devotion of Allah SWT. Using exponential functions of linear equation system which describes the number of victims exposed to COVID-19, we will show that the higher the number of victims exposed to COVID-19 outbreak from day to day, it will increase one\u27s devotion to Allah SWT. And the lower the number of victims exposed to COVID-19 outbreak from day to day, all people must not be careless and continue to increase their devotion to Allah SWT
Penguatan Kapasitas Pemuda Non Produktif di Desa Kebonrejo, Salaman, Kabupaten Magelang melalui Budidaya Tin
No full textTanaman Tin atau yang kerap disebut “buah surga” merupakan suatu jenis tanaman yang dapat dimanfaatkan dalam berbagai bidang, baik bidang kesehatan, kuliner maupun bisnis. Laporan Food and Agriculture Organization (FAO) tahun 2005 menyebutkan bahwa produksi Tin di dunia mencapai 1.057.000 ton, sedangkan di Indonesia Tin belum mencapai target pemenuhan yang diinginkan. Di Indonesia sendiri hingga saat ini belum terdapat data resmi yang dirilis terkait produksi tanaman Tin. Hal ini memberikan pemahaman bahwasannya tanaman Tin yang memiliki potensi belum dimanfaatkan sebagai tanaman industri yang memiliki nilai jual. Padahal di Indonesia tanaman ini memiliki prospek yang cukup baik, contohnya dalam pembuatan produk hasil olah Tin. Kampung Kebonkliwon terletak di Desa Kebonrejo, Kecamatan Salaman, Kabupaten Magelang, Provinsi Jawa Tengah. Program ini dibuat guna mengembangkan potensi tanaman Tin di Kampung Kebonkliwon, serta lebih lanjut dapat mengubah pola pikir pemuda desa yang non produktif khususnya untuk ikut berkontribusi dalam pembangunan Kampungnya. Program yang dilakukan yakni jasa penyuluhan yang meliputi penanaman, perawatan, serta perbanyakan tanaman Tin. Pembagian 200 bibit tanaman Tin merupakan awal dari program ini, setelah itu program mendapatkan dukungan dari warga dengan hibah 1000 bibit tanaman Tin yang dianggarkan desa untuk mewujudkan terciptanya Kampung Tin.
[Fig Plant or as known as “fruit of heaven” is type of plant than can be utilized in various fields, such as health, culinary and business. In 2005 Food and Agriculture Organization (FAO) reported that Figs production in the world reached 1.057.000 tons, while in Indonesia has not reached the desire target of fulfillment. Until now in Indonesia there is no official data released related to figs production. This provides an understanding that the Fig plant has many potential but has been untapped as industrial plant that has a sale value. Whereas in Indonesia this plant has a good prospect, for example in the making of Fig product. Kampung Kebonkliwon is located in Kebonrejo Village, District of Salaman, Region of Magelang, Province of Central Java. This program was created to develop the potential of Fig plant in Kampung Kebonkliwon, and further it can change the mindset of the village youths especially to contribute in the development of their village. The prpgram is an extension service that includes planting, maintenance, and plants propagating. The distribution of 200 seeds of Fig plants is the beginning of this program, after that the program get support from the residents with grants of 1000 seeds of Fig plants that are budgeted by the village to realize the creation of Kampung Tin.
Pembuatan Ecobrik Pada Bank Sampah Pematang Pudu Bersih Kecamatan Mandau Duri Kabupaten Bengkalis
No full textKecamatan Mandau merupakan salah satu kecamatan yang cukup padat penduduk di Kabupaten Bengkalis, disini terdapat sebuah Bank Sampah Pematang Pudu Bersih yang berada pada kelurahan Pematang Pudu dengan jumlah penduduk 29.986 jiwa yang terdiri dari 17 RW dan 95 RT dengan luas wilayah 25 KM2. Bank sampah ini berdiri sejak 2015 yang menampung sampah non-organik seperti botol, plastik, kertas dan karton dengan beragam jenis. Tetapi untuk sampah plastik seperti kantong kresek, bungkus makanan, styrofoam, sedotan dan lainnya sejenis maka ini belum bisa dimanfaatkan, sebagian bisa dibuat menjadi tas karena bungkus plastik tersebut masih bagus tetapi bungkus plastik yang sudah kotor dan robek tidak bisa buat menjadi kerajinan tangan. Untuk itulah dibuatkan menjadi paving blok sehingga memiliki nilai jual yang lebih tinggi lagi.
[Mandau District is one of the most densely populated sub-districts in Bengkalis Regency, here there is a Pematang Pudu Bersih Waste Bank located in Pematang Pudu Village with a population of 29,986 people consisting of 17 RW and 95 RT with an area of 25 KM2. This waste bank was established in 2015 and accommodates various types of non-organic waste such as bottles, plastics, paper and cardboard. But for plastic waste such as plastic bags, food wrappers, styrofoam, straws and other similar types, this cannot be utilized, some of which can be made into bags because the plastic wrap is still good but dirty and torn plastic wrap cannot be made into handicrafts. For this reason, they are made into paving blocks so that they have a higher selling value.
SUPPLY CHAIN MANAGEMENT: A REVIEW
No full textSupply Chain Management (SCM) is a very dynamic upstream to downstream distribution system that aims to produce a service, a better product, and a minimum cost. To achieve this, there are new concepts for the development of SCM, namely Lean Supply Chain (LSC), Supply Chain Quality Management (SCQM), and Supply Chain Network Design. Where LSC applies lean to address waste in the distribution chain, maximizing production, so costs will be reduced, and competitiveness will increase. Whereas SCQM in its application has the term internal dimension, namely quality management and external dimension, namely the context of supply chain management. Then for supply chain network design is a technology that can support the development of SCM to realize the connectivity and integration of distribution data so that all parties must feel benefited, both the producers, the shipping service, and the end users
Cover, Editorial Board, Welcome Speech, Table of Contents, Guidance for Authors
No full textCover, Editorial Board, Welcome Speech, Table of Contents, Guidance for Author
Anatomy and Histology of Reproductive Organ of Male Guinea Pig As a Source of Learning
No full textThis study were aim to (1) describe the anatomical and histological structures of testicular organ, epididymis, vas deferens, accessory glands, and penis in guinea pig (2) develop learning media in the form of histological slides as well as anatomy atlas of male reproductive organs (3) examine the atlas of reproductive organs of male guinea pig as a source of learning. Slide were made using paraffin method with HE staining. The study revealed histological structure of the five guinea pig (Cavia porcellus) accessory glands, namely ampullary glands, seminal vesicles, prostate gland, bulbourethral gland, and preputial gland. In addition, guinea pig penis had a baculum on its base. The results of the student response test showed very good category with the percentage of 90,55%. The readability test had very good value from the subject expert (95,71%), media expert (81,66%), peer reviewer (88,07%) and biology teacher (81,51%). Overall, the atlas of the \u27Anatomy of Male Reproductive Organs of Guinea Pig\u27 had excellent quality and deserves to be used as a learning resource
Morphological Diversity of Bacteria and Fungus of Rhizosfer Puspa Tree (Schima wallichi Korth.) at Turgo Forest, Mount Merapi Sleman Yogyakarta
No full textThe soil fertility aspect is characterized by the good biological properties of the soil. One of the important elements of the soil biological properties is the bacterial population present in it. This research has been conducted from March to April 2016 on the slopes of Mount Merapi Turgo Sleman Yoyakarta. This study aimed to determine the various characteristics of colonies and cells of microbial organisms that are on the sample soil area of rhizosphere in Puspa trees in the slopes of Mount Merapi and to know the microbes that dominated the slopes of Mount Merapi. The method used in this research is observation. The sampling method used is a composite method, which combines 3 children of soil samples taken from one sample point on the same plot of land on a diagonal basis. The result of purification of culture obtained 14 pure bacteria isolate and 5 isolate fungi. From bacteria, 11 gram positive isolates and 3 gram negative isolates. Further research is needed on the identification of bacteria up to the species level
Synthesis of ZnO Nanoparticles Doped Zirconium Oxychloride by PSTA BATAN Yogyakarta Production as Photoanode Semiconduktors for Dye Sensitized Solar Cell
No full textDye Sensitized Solar Cell (DSSC) is a device for light conversion to be electrical energy based on the concept of semiconducting sensitivity of the wide gap. This study aims to synthesis nanoparticles of ZnO: Zr semiconductors and tested the performance of ZnO: Zr nanoparticles on the DSSC system. ZnO Doped Zr Nanoparticles from precursor by Science and Technology Acceleration Center of National Nuclear Energy Agency (PSTA BATAN) Yogyakarta production was synthesized by gel-combustion method, and tested its performance on DSSC system. Effect of doping concentration variation Zr (0, 1, 3 and 5%) on the structure crystals and optical properties of ZnO studied by X-ray diffraction, infra-red spectra, and UV-Visible absorbance spectra. In this study also studied about the effect of Zr doping on changes in the parameters of crystal structures such as distances between fields of crystals , crystals lattice (a and c), unit cell volume, crystallite size, microstrain (ε), dislocation density (δ), and the textural coefficient . The synthesized nanoparticles meet the criteria 3-dimensional nanostructure of hexagonal wurtzite crystals. Uptake ZnO infrared radiation shows an increase in intensity as well shift in wave number 610 - 400 due to doping Zr. Doping Zr also influences the electronic structure of semiconductors characterized by the change of bandgap energy from 3,10-3,05 eV. Semiconductor performance test nanoparticles on the DSSC system showed a 1% Zr doping concentration increasing the voltage by 174 mV and the stability of the solar cell than the cell ZnO solar without doping that produces a voltage of 128 mV
Electrical Resistivity Tomography Techniques for Identifying Groundwater Pollution Due To Leachate flows at Putri Cempo Landfill
No full textLandfill developed with open dumping system and below the adequate standard potentially lead to new problems like those found at Putri Cempo Landfill in Surakarta City. They include leachate, which easily flows in runoff, seeps through soil and land surface, and infiltrate into groundwater that supplies the surrounding residential wells. A research on leachate spread pattern from landfills to their surrounding areas thereby becomes necessary particularly in terms of environmental pollution potential from underground, which is latent and difficult to monitor. The aims of this research were (1) to identify the areas that experienced groundwater pollution due to leachate flows, (2) to identify the distribution of resistivity in these areas, and (3) to develop a model for leachate management. This research used Electrical Resistivity Tomography (ERT) survey for identifying the distribution of resistivity in polluted areas. It also used groundwater quality analysis for validating the interpretation of the ERT survey results. The results of the research showed that there was an anomaly in the subsurface layer. Materials with resistivity values of 0.25-1.20 ohmm were found in various depths within 0-8 m below the surface. These values were much lower than the resistivity of the main materials found at the measurement site, i.e. 4.9-13.1 ohmm. Accordingly, this anomaly signified the existing influence of pollution. The pollution along the geoelectrical sounding line had uneven distribution and centric pattern at several points that indicated the accumulation sites of leachate. The proposed leachate management model included the constructions of base lining (liner), leachate collection channel, geomembrane-composed final cap, and leachate treatment