bluuebunny/crossref_metadata_2025 huggingface dataset:
PENDAMPINGAN PETANI MUDA KOPI ROBUSTA DALAM UPAYA MENINGKATKAN EKSISTENSI PETANI KOPI DI DESA AMADANOM, KECAMATAN DAMPIT, KABUPATEN MALANG
Authors: Zahidi M. Syaprin , Prakoso Havidz Ageng , Agustino Hutri , Septia Erfan Dani
Published: January 2021

Abstract. Amadanom Village, Dampit District, Malang Regency is known as Robusta coffee granary but at present there are problems faced by coffee farmers in Amadanom Village. The problem is about the regeneration of coffee farmers who are hampered by the lack of interest in the young generation in Amadanom Village to continue their parents' profession as coffee farmers. So, in this service program we focus the program on coffee literacy classes which are held intensively for 30 days. The purpose of this activity is to encourage young people in Amadanom Village to continue their parents' work as coffee farmers. The method of activities that we do is to hold workshops that bring experts in the fields of Branding, Information Technology, Agrotechnology and Online Marketing. This community service has succeeded in forming a Young Farmers Group who is committed to continuing the profession of their parents as coffee farmers in Amadanom Village.

Abstrak. Desa Amadanom, Kecamatan Dampit, Kabupaten Malang dikenal sebagai lumbung kopi robusta namun pada saat ini ada permasalahan yang dihadapi oleh para petani kopi di Desa Amadanom. Masalah itu adalah tentang regenerasi petani kopi yang terhambat akibat dari kurang berminatnya generasi muda di Desa Amadanom untuk melanjutkan profesi orang tuanya sebagai petani kopi. Maka, dalam program pengabdian ini kami memfokuskan program pada kelas literasi kopi yang diadakan secara intensif selama 30 hari. Tujuan dari kegiatan ini adalah mendorong generasi muda di Desa Amadanom untuk melanjutkan pekerjaan orang tuanya menjadi petani kopi.  Adapun metode kegiatan yang kami lakukan adalah dengan mengadakan workshop yang mendatangkan para ahli di bidang Branding, Teknologi Informasi, Agroteknologi dan Marketing Online. Kegiatan pengabdian ini berhasil membentuk Kelompok Petani Muda yang berkomitmen untuk meneruskan Profesi orang tuanya sebagai petani kopi di Desa Amadanom.         
MENINGKATKAN KEMAMPUAN MEMBACA EFEKTIF DAN MENULIS KREATIF PADA SISWA SMA DI JAKARTA
Authors: Sari Nur Indah , Septiani Eka
Published: January 2021

Abstract: This community service aims to provide counseling on solution to develop students language skills. The language skills must be development from an early age. Throught this activity, students can practice cognitive, affective, and psycomotorik development. Lack of interest in reading students so that it affects writing productivity can be said to be very less. This activity is very well done in the environment. It also can broaden students' insights, another benefit that can be taken in this activity is that it can improve their language skill. These effective reading and creative writing activities involve school-age students at Cawang Baru 1 High School. In this counseling and community service program, it will focus on training activities in effective reading and creative writing. By giving direction and socialization, it is hoped that (1) students will increase understanding in receiving information, (2) will foster students' confidence in conveying the information they can, (3) improve their language skills in a bigger forum, (4 ) gave birth to a creative generation in producing works through language. This community service program is also expected to be able to contribute in efforts to develop students' language skills as a future generation

Abstrak: Pengabdian masyarakat ini bertujuan untuk memberikan penyuluhan bagaimana solusi  mengembangkan keterampilan peserta didik dalam berbahasa. Keterampilan berbahasa harus dikembangkan sejak dini. Melalui kegiatan ini peserta didik dapat melatih perkembangan kognitif, afektif, dan psikomotorik. Kurangnya minat membaca peserta didik sehingga memengaruhi produktivitas menulis dapat dikatakan sangat kurang. Kegiatan ini sangat baik dilakukan di lingkungan tersebut. Selain itu juga dapat menambah wawasan peserta didik, manfaat lain yang bisa diambil dalam kegiatan ini yaitu dapat meningkatkan keterampilan berbahasa mereka. Kegiatan membaca efektif dan menulis kreatif ini melibatkan peserta didik usia sekolah yang dilakukan di SMA 1 Cawang Baru. Pada program penyuluhan dan pengabdian masyarakat ini, akan berfokus pada kegiatan pelatihan membaca efektif dan menulis kreatif. Dengan diberikan pengarahan dan sosialisasi, diharapkan (1) akan meningkatkan pemahaman peserta didik dalam menerima informasi, (2) akan menumbuhkan rasa percaya diri peserta didik untuk menyampaikan informasi yang mereka dapat, (3) meningkatkan keterampilan berbahasa merekadi forum yang lebih besar, (4) melahirkan generasi yang kreatif dalam menghasilkan karya melalui bahasa. Program pengabdian masyarakat ini juga diharapkan mampu memberi kontribusi dalam upaya pengembangan keterampilan berbahasa peserta didik sebagai generasi di masa depan.
PENINGKATAN KETERAMPILAN PENGGUNAAN MICROSOFT WORD REFERENCING TOOL PADA GURU SMA MUHAMMADIYAH 2 PALEMBANG
Authors: Wijayanti Tutik Fitri , Nawawi Sulton , Auliandari Lia
Published: January 2021

Abstract. Writing scientific papers, especially Classroom Action Research, requires citation from references used, including by teachers of Senior High School of Muhammadiyah 2 Palembang. The consistency of writing scientific citations can use the application available in Microsoft Word. Therefore, this action aimed to train teachers to use the Microsoft Word Referencing Tool to improve their skills in citation. The method of this action was done by direct training and it was given a questionnaire for teachers to find out the training results. The results obtained that the participants said the knowledge gained was new and the training process was easily understood by the participants.

Abstrak. Penulisan karya ilmiah, khususnya Penelitian Tindakan Kelas (PTK), dan dalam pembuatan bahan ajar membutuhkan citation atau sitasi (kutipan) dari referensi yang digunakan, termasuk oleh guru SMA Muhammadiyah 2 Palembang. Konsistensi penulisan sitasi karya ilmiah dapat menggunakan aplikasi yang tersedia di Microsoft Word. Oleh sebab itu, kegiatan ini bertujuan untuk melatih guru menggunakan Microsoft Word Referencing Tool untuk meningkatkan keterampilannya dalam mensitasi. Metode kegiatan ini dilakukan dengan cara pelatihan langsung dan diberikan kuisioner bagi peserta untuk mengetahui hasil pelatihan. Hasil yang diperoleh bahwa para peserta menyatakan ilmu yang diperoleh merupakan hal yang baru dan proses pelatihan mudah dipahami oleh peserta.
PEMBERDAYAAN MASYARAKAT DALAM PENGELOLAAN DAN PENINGKATAN NILA GUNA SAMPAH DI KELURAHAN NGLETIH KECAMATAN PESANTREN KOTA KEDIRI
Authors: Wijayati Ekawati Wasis , Marianingsih Marianingsih
Published: January 2021

Abstract. Waste generated needs to be managed appropriately to be avoided due to negativity from waste. The Urban people Ngletih generally do waste management by means of traditional and simple   by means of collected was then burned. But in fact was not solve the problems but also dangerous for the environment. The purpose of community service is to educate and empower the community in an effort to increase the value of waste by making compost and ecobrick. The activity carried out is to provide counseling to the public about waste and simulating making compost from garbage and making ecobrick from inorganic (plastic) waste. The results of statistical analysis with Wilcoxon-Test showed the value of  p = 0,000 (p <0.05), which means the mean difference between the scores of knowledge before and after counseling about waste. Helps suggest what has been done has been successful in increasing respondents' knowledge about waste. In an effort to reducing the volume of waste, then needs to be sustainable counseling in order to raising awareness and participation.

Abstrak. Sampah yang dihasilkan perlu dikelola dengan tepat untuk menghindari dampak negatif dari sampah. Masyarakat kelurahan Ngletih umumnya melakukan pengelolaan sampah dengan cara tradisonal dan sederhana yaitu dengan cara dikumpulkan kemudian dibakar. Namun cara tersebut bukan menyelesaikan masalah tetapi juga berbahaya bagi lingkungan. Tujuan dari pengabdian kepada masyarakat ini adalah memberikan edukasi serta pemberdayaan masyarakat dalam upaya meningkatkan nilai guna sampah dengan pembuatan kompos dan ecobrick. Kegiatan yang dilakukan adalah dengan memberikan penyuluhan pada masyarakat tentang sampah dan simulasi pembuatan kompos dari sampah organik serta pembuatan ecobrick dari sampah anorganik (plastik). Hasil analisa statistik dengan uji beda menunjukkan nilai p=0,000 (p<0,05) yang berarti bahwa ada perbedaan rerata yang bermakna antara skor pengetahuan sebelum dan setelah dilakukan penyuluhan tentang sampah. Sehingga penyuluhan yang telah dilakukan berhasil meningkatkan pengetahuan responden tentang sampah. Dalam upaya pengurangan volume sampah, maka perlu dilakukan penyuluhan secara berkesinambungan guna menumbuhkan kesadaran dan partisipasi masyarakat.
KUPU-KUPU TERSEMBUNYI PENERUS BANGSA DI TPA SUKAWINATAN
Authors: Lisnani Lisnani , Beda Maria Oktavia Nira Tania , Manik Thessalonika Elma La Septi , Lestari Benediktha Evi Fani Puji , Prasetyo Titus Dwianto , Angeliana Wenny
Published: January 2021

Abstract. Hidden butterfly of the successor to the nation is a form of devotion conducted by students from different study programs with lecturers. This activity was carried out by five students from different study programs namely Primary School Teacher Education, English Education, Management, Accounting, and Industrial Engineering. The purpose of this activity is to equip children of TPA Sukawinatan with the following: 1) improving the ability to read, write and count (calistung); 2) improve English language skills; 3) apply wise attitude in using money; 4) Instilling good character of management (arrangement) and time discipline in children; 5) Developing children's skills in utilizing used goods to be made as something that has added value. The method of implementation used in the form of preparation, planning and implementation stages. Methods of practice, experiments, lectures and games. The results of this activity are as follows: 1) increased ability to read, write and count; 2) increasing English language skills; 3) understanding the importance of using money wisely; 4) has a management character (discipline) of time; 5) have skills in utilizing used goods to become something that has added value.

Abstrak. Kupu-kupu tersembunyi penerus bangsa adalah bentuk kegiatan pengabdian yang dilakukan oleh mahasiswa dari program studi berbeda bersama dosen. Kegiatan ini dilakukan oleh lima orang mahasiswa dari program studi yang berbeda-beda yaitu Pendidikan Guru Sekolah Dasar, Pendidikan Bahasa Inggris, Manajemen, Akuntansi, dan Teknik Industri. Tujuan dari kegiatan ini adalah membekali anak-anak TPA Sukawinatan dengan hal berikut: 1) meningkatkan kemampuan membaca, menulis dan berhitung (calistung); 2) meningkatkan kemampuan berbahasa Inggris; 3) menerapkan sikap bijaksana dalam menggunakan uang; 4) Menanamkan karakter manajemen (pengaturan) dan disiplin waktu yang baik pada anak-anak; 5) Menumbuhkembangkan keterampilan anak-anak dalam memanfaatkan barang bekas untuk dijadikan sesuatu yang memiliki nilai tambah. Metode pelaksanaan yang digunakan dalam bentuk tahap persiapan, perencanaan dan pelaksanaan. Metode praktik, eksperimen, ceramah, dan permainan. Hasil dari kegiatan ini adalah sebagai berikut: 1) meningkatnya kemampuan membaca, menulis dan berhitung; 2) meningkatnya kemampuan bahasa Inggris;3) memahami pentingnya penggunaan uang dengan bijak; 4) memiliki karakter manajemen (disiplin) waktu; 5) memiliki keterampilan dalam memanfaatkan barang bekas untuk dijadikan sesuatu yang memiliki nilai tambah.
PENYULUHAN PERSPEKTIF HUKUM PENYALAHGUNAAN MEDIA ONLINE UNTUK KONTEN PORNOGRAFI DI SMK AL-AZHAR BATAM
Authors: Silalahi Mesri , Svinarky Irene , Sianturi Nico Bangun Rezkyanto
Published: January 2021

Abstract. SMK Al-Azhar Batam is a Vocational School enriched with Islamic knowledge and practice. Many students have a smartphone, at school they use it during recess while the study hours are turned off and stored by the teacher. Its use is to access various online media to create communities, continue learning discussions, find learning resources, add insight, seek entertainment and others.Online media that is frequently accessed: Youtube, google, Whatsapp, Instagram, Facebook, Line and others. Based on the information obtained, SMK Al-Azhar Batam does not have special learning about the ITE Law so they do not understand the ethics of using internet and online media. They also lack understanding about pornography and related laws. The stages of its activities are the preparation, implementation and evaluation stages. The result is: students of SMK AL-Azhar Batam are very enthusiastic in participating in activities, very interested in the material presented, increasingly understanding ethics in using online media, knowing ITE laws and understanding the legal status of online media abuse and the impact of pornography.

 

Abstrak. SMK Al-Azhar Batam adalah SMK kejuruan yang diperkaya pengetahuan dan praktek agama Islam. Banyak siswa-siswinya mempunyai Gadget, di sekolah dipakai pada jam istirahat sedangkan jam belajar dimatikan dan disimpan guru. Kenggunaannya adalah mengakses berbagai media online untuk menciptakan komunitas, melanjutkan pembahasan pembelajaran, mencari sumber pembelajaran, menambah wawasan, mencari hiburan dan lain sebagainya. Media online yang sering diakses: Youtube, google, Whatsapp, Instagram, Facebook, Line dan lainlain. Berdasarkan informasi yang diperoleh, SMK Al-Azhar Batam tidak mempunyai pembelajaran khusus mengenai Undang-Undang ITE sehingga mereka kurang memahami etika penggunaan internet dan media online. Mereka juga kurang memahami berbagai hal terkait pornografi dan hukum yang terkait. Tahapan kegiatannya yaitu tahap persiapan, pelaksanaan, dan tahap evaluasi. Hasil pengabdian yaitu, siswa-siswi SMK ALAzhar Batam sangat antusias mengikuti kegiatan, sangat tertarik dengan materi yang disampaikan, semakin memahami etika dalam menggunakan media online, mengetahui undang-undang ITE serta memahami status hukum penyalahgunaan media online dan dampak pornografi.

 
PENINGKATAN KETERAMPILAN PENGGUNAAN APLIKASI KAHOOT BAGI GURU DI SMA NEGERI 11 PALEMBANG
Authors: Ningsih Yunika Lestaria , Kesumawati Nila , Fitriasari Putri , Octaria Dina , Retta Allen Marga , Nopriyanti Tika Dwi
Published: January 2021

Abstract. Nowadays, digital information resources are available and can be accessed easily by educators and learners. References for studying both material and evaluation instruments can also be found easily by using the search engine. One application that can be used by teachers in making digital learning evaluation instruments is the Kahoot! Application. The objectives of this activity are: (1) to introduce the Kahoot! as a learning medium, especially in making online quizzes, and (2) to improve teacher skills in using the Kahoot! application. The implementation method used in this activity is lectures, practice, and discussion. Data were collected through a training satisfaction questionnaire. The results showed that the training was run very well, and the participants were very enthusiastic. The data analysis showed that 91.38% of participants stated that this training activity could increase teachers' knowledge about the Kahoot! in learning, and 90.52% of participants stated that this training could improve teacher skills in using the Kahoot! application.

 

Abstrak. Pada era big data sekarang ini, sumber daya informasi digital telah tersedia dan dapat diakses dengan mudah oleh para pendidik dan pembelajar. Referensi untuk belajar baik itu materi dan instrumen evaluasi juga dapat ditemukan dengan mudah dengan menggunakan mesin pencarian Google. Salah satu aplikasi yang dapat dimanfaatkan oleh guru atau tenaga pengajar lainnya dalam membuat instrumen evaluasi pembelajaran digital adalah aplikasi Kahoot!. Tujuan kegiatan ini adalah : (1) untuk mengenalkan aplikasi Kahoot! sebagai media pembelajaran khususnya dalam membuat kuis online, dan (2) untuk meningkatkan keterampilan guru dalam menggunakan aplikasi Kahoot!. Metode pelaksanaan yang digunakan dalam kegiatan ini adalah ceramah, praktik dan diskusi. Data dikumpulkan melalui angket kepuasan pelatihan. Hasil pelaksanaan kegiatan menunjukkan bahwa kegiatan pelatihan berjalan dengan lancar, dan peserta kegiatan antusias dalam mengikuti pelatihan. Dari hasil analisis data dapat disimpulkan bahwa 91,38% peserta kegiatan menyatakan bahwa kegiatan pelatihan ini dapat menambah pengetahuan guru tentang aplikasi Kahoot! dalam pembelajaran, dan 90,52% peserta menyatakan bahwa pelatihan ini dapat meningkatkan keterampilan guru dalam menggunakan aplikasi Kahoot!.
THE NIGER DELTA PHENOMENON FROM THE PERSPECTIVES OF SARTRE’S EXISTENTIALISM AND SOCIAL POSITIVISM
Authors: Bubu Ncha Gabriel
Published: January 2021

To some, existentialism and positivism in bipolar thinking, are dichotomies, others view them as related concepts in philosophy. It is a considered view of this paper that these two schools of thought are related, complementary and have a relationship that is useful in conflict resolution. This assertion is examined in this analysis vis-à-vis the Niger Delta, is the trust of this paper.
IMPLICATIONS OF FEYERABEND’S ANARCHISTIC PHILOSOPHY FOR NIGERIAN EDUCATIONAL POLICIES
Authors: Ekanem Samuel Aloysius , Bisong Peter Bisong
Published: January 2021

Education is a very important variable of economic growth and development. It could be said that the rate of growth of an economy is directly proportional to the quality of education meted on the populace. This is the reason every society strives to educate its citizens. However, Nigeria remains backward in terms of education delivery. There are millions of unemployable graduates rooming her streets searching for jobs. Though many reasons could be pointed as the cause of this, this work beams its searchlight on policymaking and implementation. It argues that if the right policies are made and dutifully implemented, the quality of education would improve. Using the tool of Feyerabend’s anarchism, the work analysed the Nigerian Policy of education, pointing at areas of weaknesses and recommending action points for government and policymakers. It concludes that if Feyerabend’s anarchism is made to guide policy-making in Nigeria, educational progress would ensue.
A COMPARATIVE ANALYSIS OF TAOISM AND COMPLEMENTARY REFLECTION (IBUANYIDANDA PHILOSOPHY)
Authors: Bisong Peter Bisong
Published: January 2021

This work examined the thoughts of Taoism as propounded by Lao-Tzu and Complementary Reflection as propounded by Asouzu to discover their nexus and their point of diversion. One basic difference between the two is that complementary reflection is not a religion but Taoism is at once a philosophy and a religion. Notwithstanding the differences in nuances, contents and emphasis, we discovered a striking similarity between the two thoughts – there are geared towards complementarity. However, I believe the major weakness of Taoism over complementary reflection surrounds the concept of Tao, which is a mysterious unverifiable principle of integration.
MODEL PEMBELAJARAN TWO STAY TWO STRAY DAN HASIL BELAJAR KOGNITIF
Authors: Fitrianti Fitrianti , U.S. Supardi
Published: January 2021

This study aims to analyze the effect of the Two Stay Two Stray learning model on cognitive learning outcomes for the Diversity of Living Things and Their Conservation Efforts. The research was conducted by using a quasi-experimental method on seventh grade students of SMPN in Serang Regency, Banten Province. The research data were analyzed using statistics of descriptive and t-test inferential. The results showed that the cognitive learning outcomes who were taught using conventional learning models had an average score of 71.7; while for students who used the Two Stay Two Stray learning model obtained an average score of 78.8. The results of inferential analysis obtained t-count = 3.694 higher than t-table = 1.729 so that it can be concluded that there is a significant effect of the Two Stay Two Stray learning model on the cognitive learning outcomes of the Diversity of Living Things and Their Conservation Efforts. In order to improve student cognitive learning outcomes, teachers should use the Two Stay Two Stray model in the learning process in the classroom.
The Effect of E-Learning Application through the Use of Whatsapp-Assisted Edmodo on the Students’ Learning Outcomes in the Concept of Sound Waves
Authors: Mamonto Moh. Reghi , Odja Abdul Haris , Abdjul Tirtawaty
Published: January 2021

This study aims to find out the students’ learning outcomes in the application of e-learning through the use of WhatsApp-assisted Edmodo in the concept of sound waves. In addition, students' responses to the treatments given were also observed for the sake of evaluation. This research used a quasi-experimental research design carried out at SMA Negeri 1 Gorontalo in the even semester of the 2019/2020 academic year. The subject of the research was class XI IPA 8 consisting of 20 students. Tests were administered to students to obtain data of the students’ learning outcomes. The data collected were then analyzed by using normality test and statistical t-test. Based on the research results, it is known that the t-value (5.53) is greater than the t-table (1.72), so H0 is accepted and H1 is rejected. It means that there is a significant positive effect of using whatsApp-assisted edmodo on learning outcomes in the concept of sound waves. It can be seen from the difference of mean score between the pretest and posttest scores of the experimental class. Therefore, it can be concluded that the increase in students’ learning outcomes on the concept of sound waves is in the strong effect category.
Simultaneous detection of monacolins and citrinin of angkak produced by Monascus purpureus strains using Liquid Chromatography-Mass Spectrometry (LC-MS/MS)
Authors: Sulandari L. , Utami T. , Hidayat C. , Rahayu E.S.
Published: January 2021

Angkak or red mold rice is produced from the fermentation of white rice using Monascus
purpureus, which results in the red color of the fermented rice. Angkak has been used as a
natural coloring agent for food, spices, and medicine. The active compound in angkak that
contributes to lower blood cholesterol is known as monacolin (monacolin K). However,
the presence of citrinin, the byproduct of angkak fermentation, needs to be considered as it
can cause hepato-nephrotoxic mycotoxin. The contents of pigments, monacolins, and
citrinin as secondary metabolites depends on the Monascus strain and fermentation
conditions. This study aims to analyze simultaneously monacolins and citrinin in angkak
produced by M. purpureus strains using Liquid Chromatography-Mass Spectrometry (LCMS/MS). The angkak was prepared by fermentation using M. purpureus FNCC 6008 and
M. purpureus JK2. A total of 107 M. purpureus spores/mL was inoculated into the rice.
The fermentation was carried out at room temperature (25-30oC) for 14 days. The
detection using LC-MS/MS showed that the monacolin K in angkak from both strains was
below LOQ (< limit of quantification). The analysis of citrinin content in angkak showed
that JK2 strain produced lower citrinin (1.10±0.021µg/g) compared to FNCC 6008
(3.01±0.072 µg/g). The other monacolins found in angkak from both strains were
including dehydromonacolin K, monacolin J (qualitative), and mevastatin. Based on t-test,
the amount of both mevastatin and citrinin in angkak produced by two different strains
were significantly different. In contrast, the amount of dehydromonacolin K in both
angkak was comparable. The simultaneous detection result of LC-MS/MS could
determine the choice of Monascus strains quickly. JK2 strain was considered as safe, thus
it could be chosen to be applied to food products.
Effects of royal lotus petals on antioxidants of bael-rosella mixed herbal drink
Authors: Kamdaeng O. , Singkaew K.
Published: January 2021

This research aimed to study the quantity of royal lotus petals and the antioxidant activity
in the bael-rosella mixed herbal drink. The recipe of the bael-rosella mixed herbal drink
included dried bael, dried rosella, sugar and water at 8.55, 0.85, 5.13 and 85.47%,
respectively. The drink was comprised of various amounts of royal lotus petals at 1.25,
1.5, 2.0 and 2.5%. The results showed that 2.0% of royal lotus petals in the mixed herbal
drink contained 10°Brix. Regarding the acceptance of the consumers, 2.0% of the lotus
petals in the mixed herbal drink recipe was highly satisfied. The antioxidant activity of
dried royal lotus petals in the bael-rosella mixed herbal drink showed the amounts of
DPPH, metal chelation (MC50) and inhibition of lipid peroxidation (LC50) at 0.91±0.01
mg/mL, 10.79±1.76 mg/mL and 11.96±1.21 mg/mL, respectively. Hence, the bael-rosella
mixed herbal drink added with royal lotus petals can be considered as a healthy herbal
drink.
The effect of starter culture on bacterial profile in soybean tempeh
Authors: Pramudito T.E. , Putri E.G.A. , Paluphi E. , Yogiara Y.
Published: January 2021

The bacterial population in soybean tempeh can be affected by many factors such as
hygiene and preparation procedure of the soybean. In this study, we investigate the effect
of different tempeh starter culture on the bacterial profile in comparison to other factors.
The bacterial profile of five commercial tempeh made with different processing
techniques and three samples made with different starter culture were analyzed using
quantitative polymerase chain reaction (qPCR). The phylum Verrucomicrobia was only
detected in commercial tempeh from unstandardized home-scale industries. Bacteroidetes
were present in commercial tempeh and samples made with starter that contains cassavabased materials. Commercial tempeh from standardized medium-scale industries contains
fewer total bacteria than those from home-scale industries. The addition of starter culture
for tempeh production can increase the number of total bacteria compared to uninoculated
soybeans. However, there was no difference in total bacterial amount between starter
culture variation. Bacterial profiles of all samples were dominated by Firmicutes except
tempeh with the starter culture Cap Jago that is dominated by Gammaproteobacteria. This
study showed that although the type of starter culture did not significantly contribute to
total bacteria in tempeh, it can influence the bacterial profile of the product on phylum
level.
Improvement of cosmeceutical properties in rice by-products by solid state fermentation with Aspergillus oryzae and effects of different extracting conditions
Authors: Abd Ghani A. , Abd Rashid N.Y. , Jamaluddin A. , Abd Razak D.L. , Abdul Manan M.
Published: January 2021

Rice milling generates a lot of rice by-products and they are commonly used as an animal
feed ingredient. However, they have high cosmeceutical values, attributed to their high
content of bioactive compounds. In the present study, rice by-products (broken rice and
rice bran) were subjected to solid state fermentation (SSF) using Aspergillus oryzae at 30°
C for 12 days and their cosmeceutical potentials were then evaluated. Different extraction
conditions such as the type of solvent (water, 50% ethanol) and extraction temperature
(30°C, 40°C) were also optimized using a one-factor-one-time approach. Through
tyrosinase inhibition assay, it was observed that SSF has improved the anti-pigmentation
effect of broken rice and rice bran 7.4-fold and 11.2-fold in comparison to their
unfermented substrate, respectively. SSF has also improved the anti-ageing effect of
broken rice and offered 6.6-fold of improvement in fermented rice bran. In extraction
optimization studies, a stronger anti-ageing effect was observed in the water extract of
both fermented substrates extracted at 40°C while the anti-pigmentation effect is stronger
on 50% ethanol extract in fermented rice bran. Most phenolic acids that are commonly
related to cosmeceutical purposes were detected in the extracts of both fermented
substrates while most of the organic acids were detected in the water extract. Our study
suggests that SSF using A. oryzae could improve the cosmeceutical activities of rice byproducts, and both water and 50% ethanol extracts have high potential to be developed as
cosmeceutical bio-ingredients.
Effect of High-Pressure Processing (HPP) on composition, lactose and microstructure of goat milk
Authors: Mustapa Kamal S.M. , Sulaiman A. , Md. Hazmi N.A.
Published: January 2021

Thermal pasteurisation is an established method for milk processing. However, the high
temperature could affect the micronutrients in the milk. High pressure processing (HPP) is
a cold alternative to thermal pasteurisation that can maintain the fresh-like properties of
liquid food. However, employing pressure could potentially affect the composition and
microstructure of milk and milk products. Therefore, this study focusses on evaluating the
effect of high pressure processing (HPP) towards the composition, lactose content and
microstructure (in term of fat globules) of goat milk. The goat milk was subjected to HPP
at a pressure range of 200 to 600 MPa and process holding time at 5 - 15 mins. There were
insignificant differences in terms of fat, protein and carbohydrate, but significant changes
observed for lactose content of pressurised goat milk (PGM). The lactose content of PGM
was in the range of (2.540 – 2.986 g/mL), while 1.253±0.01 g/100 mL for untreated goat
milk (UGM). A higher number of the small size of goat milk fat globules observed at 600
MPa compared to lower processing pressure (200 and 400 MPa) at the same pressure
holding time (5 to 15 mins). The mean diameters of fat globules were in the range of
5.215 to 5.651 μm. This size reduction of milk fat globules is an advantage for cheese
making or other dairy product making industries, because it can help to possess a
smoother and more refined texture of milk products.
Decoding Kashgar
Authors: Aydin S , Schnabel Marc Aurel
Published: January 2021

© 2015 IEEE. This paper shows the progress of an ongoing digital heritage research focusing on Kashgar, a unique historical city in the westernmost part of China. The project aims to decode intangible heritage with the help of tangible characteristics representing Kashgar architecture. Narrow alleyways of Kashgar accommodate multifunctional usage formed by the local distinctive culture. The presented study follows a 'research through design methodology'. The interpretation of the heritage information is a game design that feeds research. Through an architectural game alternative agglomerations are generated that employ 'design-grammars' developed on the basis of Kashgar's architecture and vivid street life. The study reveals the first step of photogrammetry documentations and aerial views of a specific part of Kashgar's old town, 'Gaotai' (- Kozichiyar Beshi).
Computer Simulation of Low Frequency Vibration in Electrochemical Machining
Authors: Hung Wayne NP , Feng Zhujian , Lomeli Paul
Published: January 2021

This research studies how particles transport between low frequency vibrating electrodes during electrochemical machining (ECM). The ANSYS Fluent software was used to study the particle speed while the Star CCM+ software was utilized to study particle interactions during vibration-assisted ECM process. A series of simulations were conducted to calculate the particle average flushing speed. Collided particles either gained momentum or deflected their trajectories to accelerate in the flow of electrolyte. Simulation results showed that the highest average flushing speed of 0.4 m/s was obtained at 40 Hz vibration frequency and 10 µm vibration amplitude. Such higher flushing speed of particles improved machining depth (material removal rate) and produced a sharper machined profile. Experiment results confirmed that the maximum machining depth and minimum taper angle were obtained when vibrating the anodic workpiece at 40 Hz and 10 µm amplitude. Machining depth and ECM material removal rate had a positive correlation with the average flushing speed. A sharper ECM’ed profile was achieved since the taper angle was favorably reduced at high average flushing speed.
Generation of Electricity by Microbial Fuel Cells using Industrial Effluent
Authors: Rahman Md. Mostaqur
Published: January 2021

A microbial fuel cell (MFC) is a device that converts bio-chemical energy into electrical energy during substrate oxidation with the aid of microorganisms (bacteria). The energy contained in waste water is converted to the electrical power by the action of bacteria. The principle of MFC is to transfer electrons from the microorganisms to electron acceptor at a higher electrochemical potential. An experimental study was performed to find the most efficient industrial waste water that can produce highest and stable electrical power by the MFC and to determine the removal rate of pollutant from the waste water by the MFC. Two MFC, namely one PEM MFC and two PEM FMC, has been fabricated for this study. The three different waste water samples used were Dyeing Waste Water-1 (DWW-1), Dairy Industry Waste Water (DIWW) and Dyeing Waste Water-2 (DWW-2). The highest rate of voltage generation is achieved when the MFC was operated with DWW-1 (1.06 V), DIWW (0.95 V) and DWW-2(0.644 V), respectively. Based on the graph pattern the DWW-1 provided the best record in terms of electrical energy generation.
Failure Analysis of Bolt of Rear Mounting Trunion of an Aero-Engine: A Case of Bending Induced Chevron Pattern as well as Fatigue Failure on the Same Fracture Surface
Authors: Hazra Mrityunjoy , Singh Ashok Kumar
Published: January 2021

Present work describes the failure investigation of failed bolt of starboard rear mounting trunion of an aero-engine. Multiple fracture initiation points are noticed. This is a classic case of a single bending type of load initiating reversed bending fatigue as well as chevron pattern on the same fracture surface. Visually observed bending phenomenon supports the each type of failure mode. More interestingly, point of initiation of fast as well as the reversed bending fatigue failure is the same, although those two events have been found to be separate phenomena. It has been established that two different fatigue crack fronts, typical of reversed bending fatigue phenomenon propagated towards each other to make half of the cross-section fractured, while the another half failed by chevron patterned fast fracture. In this, the fast fracture of one half has preceded the reversed bending fatigue fracture of the other half, although the former is not responsible for happening of the later. Modes of fracture and factors influencing have been established in this article with emphasis on circumstantial evidence involving background information and visual examination, supported often by the open literature. Presence of cadmium (Cd) and its possible source, residence time and relative presence on differently fractured surfaces have offered important clues on establishing the sequence and relative inter-dependence of the said two fracture types. Presence of cadmium on the fracture surfaces, multiple crack initiation sites and numerous well-revealed secondary cracks on Branson cleaned fracture surface indicate that the cracks pre-existed on the material even before the cadmium plating and manifestation of chevron pattern is its extreme revelation. This pre-existing chevron pattern primarily aggravated the present failure through bending fatigue phenomenon in the later stages. Low alloy steel (ASTM grade 16) with presently used hardness (340 HV) level does not seem to suit the present application, as it is clear from its extreme brittleness as manifested by pre-existing cracks.
Effects of Cooling Rate on the Microstructure, Mechanical Properties and Corrosion Resistance of 6xxx Aluminium Alloy
Authors: Agboola Joseph , Anyoku Emmanuel , Oladoye Atinuke
Published: January 2021

The applicability of materials is highly dependent on its microstructure and mechanical properties. Aluminium alloy is being used extensively under diverse conditions. This study investigates the effects of cooling rate on the microstructure, mechanical properties and corrosion resistance of 6xxx-series aluminium alloy. Aluminium ingot was melted in a muffle furnace and cast into rods. The cooling rate was controlled by holding the moulds at different temperatures.  Microstructural characteristics were examined by optical microscopy. Mechanical properties such as impact strength, hardness, and tensile strength were analysed using standard methods. Corrosion resistance was evaluated by potentiodynamic polarization. It was found that microstructures are dominated by ferrite and pearlite phases with different morphologies and grain sizes depending on the cooling rate.  Increasing the cooling rate resulted in microstructural refinement and chemical homogeneity, improvement in mechanical properties and corrosion resistance of the 6xxx alloy.
Effect of Minimum Quantity Lubrication System for Improving Surface Roughness in Turning Operation
Authors: Hossain Shazzad , Abedin Mohammad Zoynal
Published: January 2021

Due to increase in temperature at the cutting zone, the tool wear and surface roughness along with the non-uniform chip formation and the dimensional deviation of the job by using the conventional cutting fluid, the machining operation experts have directed their concentrations in order to achieve a smooth machining operation by using minimum quantity lubrication (MQL). As a consequence, numerous efforts can be seen for not only having the optimum cutting parameters but also other parameters that enhance the product quality and the surface roughness. In this regard, relevant experimental and numerical data outcomes not only MQL but also conventional cutting fluid (CCF) in the turning operation of 50HRC steel has been investigated experimentally. It is revealed that the surface roughness becomes optimal and significantly reduced for the condition of MQL with that of dry and conventional flood lubrication.
Review on Heat Transfer Enhancement by Louvered Fin
Authors: Islam Samsul , Islam Md. Shariful , Abedin Mohammad Zoynal
Published: January 2021

The heat transfer enhancement is recycled in many engineering uses such as heat exchangers, refrigeration and air conditioning structures, chemical apparatuses, and automobile radiators. Hence many enhancing extended fin patterns are developed and used. In multi louvered fin, in this segment for multi-row fin and tube heat exchanger, an increase in heat transfer enhancement is found 58% for ReH = 350. When the Reynolds number is 1075, the temperature gradient is more distinct for greater louver angle that is the higher heat transfer enhanced for large louver angle. For variable louver angle heat exchanger, the maximum heat transfer improvement achieved by 118% Reynolds number at 1075. In the vortex generator for the delta winglet vortex generator, the extreme enhancement of heat transfer increased to 16% compared to the baseline geometry (at ReDh = 600). For a compact louvered heat exchanger, the results showed that a regular arrangement of louvered fins gives a 9.3% heat transfer improvement. In multi-region louver fins and flat tubes heat exchanger, the louver fin with 4 regions and the louver fin with 6 regions are far better than the conventional fin in overall performance. At the same time, the louver fin with 6 regions is also better than the louver fin with 4-region. The available work is in experimental form as well as numerical form performed by computational fluid dynamics.
Cuantificación de la hipersensibilidad por anafilaxis cruzada
Authors: Banda Enriqueta , Naranjo Plutarco
Published: January 2021

Con el objeto de estudiar la posibilidad “clínicamente” en el cobayo el grado de sensibilización anafiláctica de un animal de otra especie, se sensibilizaron conejos con clara de huevo. Después del período de incubación se obtuvo la sangre de los conejos y el suero se inyectó en dosis variables a los cobayos,  a los cuales 18 horas más tarde se les inyectó intravenosamente el antígeno (clara de huevo) y se cuantificó la respuesta anafiláctica. 

Con conejos sensibilizados 18 días antes se encontró que la dosis de su suero para que en cobayos se produzca el shock mortal en el 50% de ellos era la de 5cc/Kg. Si la sensibilización fue 6 meses antes, para igual respuesta se requirió una dosis de 10 cc/Kg. y a los 15 meses el suero no sensibilizó lo suficiente al cobayo para que se produzca el shock mortal.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING DENGAN MIND MAPPING TERHADAP HASIL BELAJAR MATERI SISTEM GERAK PADA MANUSIA
Authors: Br Sipayung Ani Julita , Susanti R , Dewi Nur Kusuma
Published: January 2021

Problem Based Learning dengan Mind Mapping merupakan alternatif pembelajaran biologi yang menarik, membantu siswa berpikir kritis dan mampu memecahkan masalah, meningkatkan kreatifitas dan aktivitas siswa. Penelitian ini bertujuan untuk menganalisis pengaruh model Problem Based Learning dengan Mind Mapping terhadap hasil belajar siswa pada materi sistem gerak manusia kelas VIIIdi SMP Negeri 01 Ungaran. Jenis Penelitian ini eksperimen kuasi dengan rancangan penelitian Post-test only design. Sampel penelitian ditentukan secara Purposive Sampling, yaitu kelas VIII A sebagai kelas eksperimen dan kelas VIII B sebagai kelas kontrol. Data utama penelitian adalah hasil belajar kognitif melalui post-test dan lembar diskusi siswa dianalisis menggunakan t-test. Data pendukung berupa data hasil belajar keterlaksanaan pembelajaran, tanggapan siswa dan tanggapan guru. Hasil penelitian menunjukkan bahwa pembelajaran dengan Problem Based Learning dengan Mind Mapping pada kelas eksperimen berbeda terhadap kelas kontrol dengan analisis hasil posttest, t-test menunjukkan thitung 3,474> ttabel 2,042. Rata-rata nilai hasil belajar afektif siswa kelas eksperimen 86 sedangkan pada kelas kontrol 81,43. Berdasarkan hasil penelitian dapat disimpulkan bahwa penerapan model Problem Based Learning dengan Mind Mappingberpengaruh terhadap hasil belajar siswa pada materi sistem gerak pada manusia kelas VIII. Kata kunci:, mind mapping, Problem Based Learning, hasil belajar
PERBANDINGAN KUALITAS TEMPE IKAN NILA SEGAR DAN TEMPE IKAN NILA SIMPAN BEK
Authors: Mutiara Yuliastuti Brigitta Erlien , Dewi Lusiawati , Sucahyo Sucahyo
Published: January 2021

Inovasi pembuatan tempe dengan penambahan tepung ikan nila dilakukan untuk meningkatkan mutu gizi tempe.  Teknik penyimpanan beku pada freezer mampu memperpanjang masa simpan tempe dengan menjaga kesegaran,  mutu sensorik, kandungan gizi, dan menghambat bakteri pembusuk. Tujuan dilakukannya penelitian ini adalah untuk mengetahui perbandingan dalam pengaruh lama simpan beku pada tempe ikan nila dengan tempe biasa terhadap kualitas kadar air, kadar abu, protein dan total bakteri serta kualitas sensorisnya melalui uji organoleptik. Pengujian kualitas kandungan gizi pada tempe meliputi uji kadar air dengan pengovenan, kadar abu dengan furnace, protein terlarut dengan metodebiuret, dan total bakteri dengan metode pour plate. Hasil uji kualitas kandungan gizi tempe di analisis menggunakan stastika dan deskripsi sederhana. Sedangkan mutu sensoris di uji dengan uji organoleptik dan hasil dianalisis dengan SPSS uji Friedman. Peyimpanan beku pada tempe sampai hari ke 14, kualitas tempe masih terjaga dengan baik, yaitu kadar air dan kadar abu sesuai dengan SNI syarat mutu untuk tempe, kandungan protein meningkat serta jumlah total bakteri menurun, dimana pembusukan pada tempe dapat dihambat. Kualitas sensoris dari uji organoleptik, tempe ikan nila lebih diminati, khusunya tempe ikan nila pada penyimpanan beku selama 7 hari.   Kata Kunci: tempe ikan nila, beku (freezer),lama simpan
STUDI EKSPLORASI KEANEKARAGAMAN SERANGGA DI CAGAR ALAM SEBAGAI SUMBER BELAJAR MATERI KEANEKARAGAMAN HAYATI
Authors: Khalimah Siti , Subekti Niken , Alimah Siti
Published: January 2021

Penelitian ini bertujuan untuk mengidentifikasi spesies serangga yang terdapat di Cagar Alam Ulolanang Kecubung, mengetahui indeks keragaman jenis serangga yang ditemukan dan mengetahui kualitas booklet yang dikembangkan berdasarkan hasil identifikasi serangga di Cagar Alam Ulolanang Kecubung. Penelitian ini menggunakan metode Research and Development dengan melakukan dua tahap penelitian, yaitu tahap eksplorasi keanekaragaman serangga dan tahap pengembangan booklet hasil eksplorasi. Analisis data hasil eksplorasi meliputi indeks keragaman jenis Shannon-Wiener, indeks kemerataan, dan indeks dominansi Simpson. Sedangkan pengembangan booklet dianalisis menggunakan analisis deskriptif persentase. Hasil penelitian ini adalah keanekaragaman serangga yang ditemukan di CA Ulolanang berjumlah 221 individu dari 25 spesies terdiri dari 18 spesies dari Lepidoptera, 6 spesies dari Odonata dan 1 spesies dari Coleoptera. Keanekaragaman jenis (H’) di CA Ulolanang terhitung tinggi dengan nilai 3,083. Rata-rata dominansi spesies menghasilkan nilai 0,05 dan kemerataan jenis bernilai 0,958. Kelayakan booklet oleh dosen ahli mendapat kualitas layak. Sedangkan berdasarkan tanggapan siswa sangat baik. Kata kunci: keanekaragaman hayati, booklet, serangga
UJI KUANTITATIF KANDUNGAN FORMALIN PADA BAHAN PANGAN MENTAH DI PASAR TRADISIONAL KOTA YOGYAKART
Authors: Wulandari Sri Wijayanti , Lessy Nina Sakina , Supriyatin Eka
Published: January 2021

Bahan tambahan pangan (BTP) adalah bahan yang ditambahkan ke dalam pangan untuk mempengaruhi sifat dan atau bentuk pangan. Formaldehid merupakan salah satu substansi yang sering digunakan sebagai BTP. Penelitian ini bertujuan untuk mengetahui kadar formaldehid dalam bahan pangan mentah yang dijual di pasar tradisional Kota Yogyakarta. Sampel yang digunakan dalam penelitian ini adalah tahu putih, mie basah, ikan pindang, dan ikan asin. Teknik sampling yang digunakan adalah stratified random sampling. Analisis kualitatif dan kuantitatif dilakukan di Laboratorium Biologi UAD menggunakan formalin test-kit dan spektrofotometer. Sampel positif formaldehid dengan pengujian test-kit dianalisis lebih lanjut dengan SPSS. Persamaan regresi linier yang digunakan adalah linier y = 5E-06x – 0,0028 dengan R2 sebesar 0,9977. Data menunjukkan bahwa terdapat 10 sampel dari total 92 sampel yang positif mengandung formaldehid dengan konsentrasi 4358, 8441, 30310, 11436, 9348, 16154, 7624, dan 9348 ppm. Konsentrasi ini kemudian diuji secara statistic menggunakan One-sample T Test dan didapatkan hasil p value < 0,05. Berdasarkan hasil tersebut, disimpulkan bahwa konsentrasi formaldehid pada sampel ikan asin secara signifikan lebih tinggi dibandingkan dengan kadar formaldehid yang dapat ditolerir oleh tubuh, yaitu 108 mg/kg berat badan. Kata kunci: formaldehid, bahan pangan mentah, pasar tradisional, analisis kuantitatif
PENGARUH MICROCLIMATE DAN MICROCLIMATIC AMMONIA CLOSED HOUSE TERHADAP PROFIL SEL DARAH MERAH AYAM BROILER
Authors: Mustaqim Bil , Sarjana Teysar Adi , Wahyuni Hanny Indrat
Published: January 2021

Penelitian ini bertujuan untuk mengkaji zona penempatan berbeda dalam kandang closed house dan dampaknya terhadap microclimatic ammonia dan profil darah merah ayam broiler. Materi yang digunakan adalah ayam broiler sebanyak 360 ekor dengan bobot awal 44,8 ± 1,66 g dari kandang closed house berpopulasi 11.000 ekor. Penelitian menggunakan rancangan acak kelompok (RAK) dengan 4 perlakuan dan 6 kelompok, setiap kelompok percobaan terdiri dari 15 ekor ayam. Perlakuannya adalah penempatan ayam pada posisi tertentu dari panjang kandang yang diukur dari inlet, yaitu: zona 1 = sejajar dengan inlet, zona 2 = 15 meter, zona 3 = 30 meter dan zona 4 = 45 meter. Parameter yang diukur yaitu total eritrosit, kadar hemoglobin, dan persentase hematokrit. Data yang diperoleh dianalisis ragam dan jika terdapat pengaruh nyata dilanjutkan dengan uji beda Duncan. Hasil penelitian menunjukkan bahwa zona yang semakin jauh dari inlet nyata (P<0,05) meningkatkan persentase hematokrit, namun tidak berpengaruh terhadap jumlah eritrosit dan kadar hemoglobin (p>0,05). Simpulan penelitian yaitu zona penempatan ayam pada posisi lebih jauh dari inlet menyebabkan peningkatan microclimatic ammonia sehingga berpengaruh terhadap penambahan persentase hematokrit ayam broiler.