bluuebunny/crossref_metadata_2025 huggingface dataset:
Job Placement of the Bachelor of Science in Agriculture Graduates of Leyte State University
Authors:   Foundation University, Dumaguete City, Capon Daisy , Sandoval Antonia Cecilia ,   College of Education, Leyte State University, Visca, Baybay City, Leyte
Published: November 2020

This study determined the job placement of BSA graduates of Leyte State University from SY 1994-1995 to 1996-2000. Results showed that more than half of the graduates were employed either in government or in private sector with 50% having a contractual appointment and three-fourths landing in jobs related to agriculture. Majority of the respondents were non-eligibles although, they considered the skills and knowlege acquired in college as relevant to their present job. Their socio-demographic characteristics, including eligibility, were not significantly related to emplyment status.
SHJ NOTES: Occurrence of White Stem Borer in Agusan del Norte Lowland Ricefields
Authors:   College of Agricultral Science and Natural Resrouces, Northern Mindanao State Institute of Science and Technology, Ampayon, Butuan City, Philippines, Valera Rowena
Published: November 2020

The occurrence of white stem borer (Scirpophaga innotata Walker) in relation with other insect pest and natural enemies in the irrigated and rainfed lowland ricefields in Agusan del Norte was studied for two cropping seasons. Seasonal abunance of the white stem borer and associated arthropods were determined through sweep net, quadrat, and pan sampling in 12 individual harvest. There were three generations of white stem borer recorded during the survey as shown by the occurence of egg masses althought overlapping of generations was also noted. However, its population fluctuated as the crop matured.
Root Shoot Coordination Optimization: Conceptualizing Ascent of Sap and Translocation of Solute in Plant
Authors: Haldar Vivekananda , Chakraborty N.
Published: November 2020

A new nature inspired evolutionary technique called Root Shoot Coordination Optimization (RSCO) has been proposed here. This optimization method has been developed on the basis of conduction procedure of plant. Water and solute i.e. food circulation phenomena maximizes on the fruitful coordination between root and leaves/shoot. This circulation procedure in plant incorporates two vital processes which are ascent of sap and translocation of food. Ascent of sap occurs due to the combined effect of adhesion and cohesion tension of water molecules and transpiration pull for the evaporation of water through stomata of shoot. Translocation of food takes place due to the pressure difference of solute in the shoot and root. This thought has been mathematically modeled as a new soft computing tool. This method has been tested for some benchmark problems. This method showed its effectiveness with encouraging results.
Development of Muslim Law of Succession
Authors: Islam Sunjida
Published: November 2020

In Islamic society, as in most other societies, inheritance represents the most important method of transferring wealth from one generation to the next. Islamic law of Inheritance is one of the most comprehensive systems of succession. It is exhaustive enough to meet most of the situation that have arisen and that may arise. It pays ample attention to the interest of all those who find natural place in the first rank of the affection of the deceased. It is difficult to find in any other system of succession containing such just and equitable rules.
Photogrammetry and image processing techniques for beach monitoring
Authors: Sánchez-García Elena , Balaguer-Beser Ángel , Pardo-Pascual Josep Eliseu
Published: November 2020

The land-water boundary varies according to the sea level and the shape of a beach profile that is continuously modelled by incident waves. Attempting to model the response of a landscape as geomorphologically volatile as beaches requires multiple precise measurements to recognize responses to the actions of various geomorphic agents. It is therefore essential to have monitoring systems capable of systematically recording the shoreline accurately and effectively. New methods and tools are required to efficiently capture, characterize, and analyze information – and so obtain geomorphologically significant indicators. This is the aim of the doctoral thesis, focusing on the development of tools and procedures for coastal monitoring using satellite images and terrestrial photographs. The work brings satellite image processing and photogrammetric solutions to scientists, engineers, and coastal managers by providing results that demonstrate the usefulness of these viable and lowcost techniques. Existing and freely accessible public information (satellite images, video-derived data, or crowdsourced photographs) can be converted into high quality data for monitoring morphological changes on beaches and thus help achieve a sustainable management of coastal resources.
Seguimiento del fenómeno blanco de la laguna de la Cruz (Cuenca, España)
Authors: Ruiz M. , Morales S. , Soria J.M.
Published: November 2020

In the present study, a five-year follow-up was performed by remote sensing of the calcium carbonate precipitation in La Gitana karstic lake also known as La Cruz (located on the province of Cuenca, Spain). The important role that calcium carbonate precipitation plays in the ecology of the lake is well known for its influence on the vertical migrations of phytoplankton, the concentration of bioavailable phosphorus and, therefore, the eutrophication and quality of the waters. Whiting take place between the months of July and August, and it can be studied at this time through its optical properties, with the main objective of offering updated data on a phenomenon traditionally studied and establishing possible relationships between abiotic factors such as temperature and/or rainfall. The atmospheric temperature data collected by the meteorological station suggest a possible relationship between the appearance of the white phenomenon and a pulse of previous maximum temperatures. On the other hand, no apparent relationship was found between rainfall and water whiting.
Copernicus: the European Earth Observation programme
Authors: Jutz S. , Milagro-Pérez M.P.
Published: November 2020

The European Union-led Copernicus programme, born with the aim of developing space-based global environmental monitoring services to ensure a European autonomous capacity for Earth Observation, comprises a Space Component, Core Services, and In-situ measurements. The Space Component, coordinated by ESA, has seven Sentinel satellites in orbit, with further missions planned, and is complemented by contributing missions, in-situ sensors and numerical models, and delivers many terabytes of accurate climate and environmental data, free and open, every day to hundreds of thousands of users. This makes Copernicus the biggest provider of Earth Observation data in the world.
HUBUNGAN KUALITAS TIDUR DENGAN PENINGKATAN TEKANAN DARAH PADA PASIEN HIPERTENSI DI WILAYAH KERJA PUSKESMAS GUNTUNG PAYUNG
Authors: Rusdiana Rusdiana , Maria Insana , Al Azhar Hafiz
Published: November 2020

Latar Belakang: Hipertensi  merupakan penyakit yang bersifat membunuh secara diam-diam perlu adanya pemahaman penderita dalam menjaga Stabilitas Tekanan darah salah satunya menjaga Kualitas Tidur. Tujuan dari penelitian adalah mengetahui hubungan kualitas tidur dengan peningkatan tekanan darah pada  pasien hipertensi di Wilayah Kerja Puskesmas Guntung Payung Tahun 2018. Metode: Jenis penelitian yang digunakan dalam penelitian ini adalah  korelasional dengan pendekatan cross sectional. Populasi adalah penderita hipertensi tahun 2018 di Wilayah Puskesmas Guntung Payung sebanyak 378 orang, sampel dalam penelitian ini sebanyak 79 orang, teknik pengambilan sampel menggunakan Purposive Random sampling. Instrumen penelitian menggunakan kuesioner sebanyak 20 pertanyaan.

Hasil : Penelitian ini menyatakan  kualitas tidur responden mayoritas adalah berkategori kualitas tidur baik sebanyak 50,6%, Peningkatan tekanan darah responden mayoritas adalah berkategori ringan sebanyak 53,2%.

Kesimpulan : Ada hubungan kualitas tidur dengan peningkatan tekanan darah pada  pasien hipertensi di Wilayah Kerja Puskesmas Guntung Payung Tahun 2019 dengan nilai p-value=0,000 (α < 0,005). Hasil penelitian ini merekomendasikan agar penderita hipertensi meningkatkan pengetahuan tentang pencegahan hipertensi dengan cara mengoptimalisasikan kualitas tidur untuk menjaga tekanan darah tetap dalam keadaan normal.
Glazbeni život Dubrovnika u 15. i 16. stoljeću
Authors: Mrđen Marina
Published: November 2020

Glazba je oduvijek bila važan dio čovjekova života. Ona je nudila ljudima svojevrstan odmak od stvarnosti odvodeći ih u svijet slobode, nesputanosti mašte. Upravo ta povezanost s ljudskom svakodnevicom uvjetovala je razvoj glazbe koji se specifično odrazio na određenim prostorima u različitim razdobljima. U ovom radu bavit ćemo se razvojem i ostvarenjima renesansne glazbe u Dubrovniku. Dubrovačka Republika je, osobito početkom 15. stoljeća, bila pod velikim utjecajem talijanskih razmišljanja i nazora. Taj se utjecaj odrazio i na glazbenu umjetnost. Naime, mnogi dubrovački glazbenici primili su svoje formalno glazbeno obrazovanje u nekom od većih talijanskih gradova koji su bili središnje točke europske renesanse. Ondje su također svjedočili izvedbama velikih glazbenih djela nastalih iz pera talijanskih skladatelja te su ih, neposredno nakon premijera, izvodili u Gradu. Osim talijanskih glazbenika, u Dubrovniku je djelovao i znatan broj drugih glazbenika stranoga podrijetla koji su također ostavili svoj trag na dubrovačku glazbu. Glazba ovoga vremena razvija se u dva različita pravca slijedeći srednjovjekovnu glazbenu tradiciju. S jedne strane možemo pratiti razvoj crkvene glazbe koja se temeljila pretežito na vokalnoj tradiciji uz postepeno obogaćivanje instrumentalnom pratnjom, dok s druge strane uočavamo pojavu profesionalnih svirača svjetovne glazbe unutar glazbenoga tijela Kneževe kapele. Osim crkvenih i svjetovnih institucija u kojima se njegovala profesionalna glazba, na dubrovačku glazbu također je značajno utjecalo i narodno glazbeno stvaralaštvo u kojem su se na specifičan način preplitali elementi vokalne i instrumentalne glazbe s plesom. U renesansnom se Dubrovniku veoma rado muziciralo u okviru raznih službenih i neslužbenih događaja. U službenim prilikama, poput proslava velikih kršćanskih blagdana, poklada i sl., glazbenici Kneževe kapele izvodili su reprezentativnu glazbu u čast Republici. Glazba se ipak češće izvodila u neformalnom okruženju. Tako se na raznim događajima, počevši od krštenja, svadbi, pogreba itd. mogla čuti svirka glazbenika Kneževe kapele te glazbenika amatera. Dubrovački glazbenici također su često imali gostovanja na dvorovima vladara susjednih država. Nažalost, o glazbenom svijetu Dubrovnika 15. i 16. stoljeća do danas svjedoče samo malobrojni sačuvani notni ostaci pojedinih skladbi te određena arhivska vrela koja nam mogu poslužiti za vrednovanje dubrovačkih glazbenih ostvaraja toga vremena te bolje razumijevanje uloge glazbe i njezine povezanosti sa svakodnevnim životom.
PEMBUATAN APLIKASI BIMBINGAN TEKNOLOGI INFORMASI DAN KOMUNIKASI (ABTIK) BERBASIS WEB DI SMAN 1 PENGASIH
Authors: Nurkhoiriyah
Published: November 2020

The current teaching and learning process cannot be separated from the development of information and communication technology. In the curriculum of 2013, information and communication technology teachers have new tasks as a guidance teachers who provide guidance to students, as well as a subject teachers, and as an education staff to support the collegue when experiencing difficulties in terms of utilization of information and communication technology in the implementation of learning. Considering that there are a lot of school people in SMAN1 Pengasih including the number of teachers in 54 subjects, 598 students, and 18 staffs, the information and communication technology teachers look for alternatives of technical guidance by creating the Web-based Information and Communication Technology Guidance Application (ABTIK). The ABTIK guidance application implemented by making a flowchart, database structure, input design, and output design. The manufacturing procedure starts with the installation of php web server and MySQL database, preparing the database, making projects and hosting to the server. The ABTIK guidance application was able to bridge the information and communication technology guidance teachers and subject teachers, as well as education staff and students in real time so that teaching and learning activities can run well.
Implementation of Ako for Improving Learning Quality of the Basic of Creativity for Teachers and Students in SMKN 3 Kasihan Bantul
Authors: Daniati Nina Tri
Published: November 2020

Understanding what creativity is is not enough just to understand it in theory, but rather on how to form a creative mindset. Considering the importance of creativity for students studying at Vocational Schools majoring in Arts and Creative Industries, quality learning is needed about The Basic of Creativity which is more than just a lecture method so that students are able to become creative figures in creating art both in the learning process at school, and in time will be applied in the Business World / Industrial World. Quality teaching is the most important impact that an education system can have on student achievement. On April 29-May 17, 2019, the authors participated in the Professional Teacher Development Program on Vocational Arts & Creative Industries, held in Aucland, New Zealand and the authors gained new knowledge in the pedagogical field, one of which was the Ako Learning Concept. Ako is the Māori language term for teaching and learning, Ako describes a reciprocal relationship in which students learn from the teacher and the teacher also learns from students. This best practice research aims to describe the steps of the implementation of Ako to improve the quality of learning The Basic of Creativity that is sustainable for teachers and students. The expected benefit of preparing this paper is to improve the quality of learning of The Basic of Creativity which is ongoing for teachers and students. After undergoing a series of work steps guided by the teacher, it is hoped that they can instill a mindset of students on how to be creative and innovative, and the teacher gets feedback to plan for better feedforward.
Efforts To Increase The Competence Of Teachers To Apply Cultural Values In Learning Through Clinical Supervision In Jetis Elementary School
Authors: Sri Wahyuni
Published: November 2020

Effort to Improve the Competence of Teachers Applying Cultural Values in Learning Through Clinical Supervision in Jetis SD Lesson year 2018/2019.The objectives of this study are (1) Carry out clinical supervision to improve teacher competency in implementing the noble values ​​of culture in learning at SD Jetis. (2) Knowing the increase in teacher competence in applying the noble values ​​of culture in learning at SD Jetis.This study uses school action research. The research was conducted in two cycles, each cycle consisting of four stages, namely: planning, implementation, observation, and reflection. The target of the study was the 6th grade teacher of SD Jetis which numbered three people in the 2018/2019 academic year. Data obtained through observations about the implementation of clinical supervision, RPP documents, and implementation of learning.The results of this study are (1) The teacher can arrange an implementation plan to insert the noble cultural values. This can be seen from the RPP products prepared by the teacher getting scores in good categories and increasing from cycle 1 to cycle 2 by 8% (2) Teachers can carry out learning by applying the noble values ​​of culture with good category results and there is an increase of 9% from cycle 1 to cycle 2. Thus, it shows that through clinical supervision the competence of Jetis elementary school teachers in applying the noble values ​​of culture in learning can increase.
Efforts to Increase Interest and Achievement in History Learning Through Mind Mapping Method in Class X Science 1 Students of SMA Negeri 1 Sewon
Authors: Marharjono
Published: November 2020

This study aims to, 1) increase interest in learning history through the method of learning Mind Mapping in class X science 1 students of SMA Negeri 1 Sewon 2016/2017 school year. 2) improve the history of learning achievement through the Mind Mapping learning method in class X science 1 students of SMA Negeri 1 Sewon 2016/2017 academic year. This research was conducted in class X Science 1 of SMA Negeri 1 Sewon in 2016/2017 school year. The study used the Classroom Action Research (CAR) approach, with two cycles. Data collection techniques in this study used observation, questionnaires, and historical learning outcomes tests. The instruments used in this study were observation guidelines, questionnaires, and historical learning achievement tests. The data analysis technique used in this research is comparative descriptive by comparing pre-action data, cycle I and cycle II. The results showed that 1) the application of the Mind Mapping method was able to increase learning interest. Student interest in learning categories is good and very good, in pre-cycle as many as 13 students (54.17%), in the first cycle increased from 17 students (70.83%) at the first meeting, to 19 students (79.17%) at the meeting second. In cycle II, it increased from 21 students (87.50%) at the first meeting, to 22 students (91.67%) at the second meeting. 2) The application of the Mind Mapping method can improve historical learning achievement in students of class X Science 1 of SMA Negeri 1 Sewon in the 2016/2017 school year. Historical learning achievement increased from the classical average of 69.38 and mastery learning by 15 students (62.50%) in the pre-cycle, increased to an average of 79.25 and mastery learning by 19 students (79.17%) in the first cycle, and an average of 86.67 and completeness of learning as many as 22 students (91.67%) in the second cycle.
The Impact Of Blended Learning Method Employing Google Classroom On The Improvement Of Student Learning Achievement On The Topic Of Matrix In Class XI IPS 1 SMA Negeri 7 Yogyakarta
Authors: Millatana Maria Ernawati
Published: November 2020

This research aims (1) to explain the process of  mixed learning model application using google google classroom to increase student achievement in class  XI IPS 1 di SMA Negeri 7 Yogyakarta and (2) to improve learning achievement of students in class XI IPS 1 di SMA Negeri 7 Yogyakarta by employing mixed learning model with google classroom. The research is a class action research in which research subjects are 24 students in class XI IPS 1 SMA Negeri 7 Yogyakarta. Students achievement is collected through observation process and learning result test.  Data is analyzed qualitatively to portrait the improvement of student performance in each cycle.  The data on the completeness of learning resul is analyzed based on Minimal score (KKM). The total percentage of completeness is also calculated.  The research findings demonstrate that (1) the application process of mixed learning model employing google classroom consists of three phases, namely designing the research, the implementation of class action research and evaluation of the whole process. The last phase is also called reflection in which teacher thinks about all steps of research and formulate some actions to improve shortcomings of the research. (2) The impact of mixed learning method using google class room on student achievement is positive.  Student achievement has been improved as demonstrated by learning result test in each cycle. The total percentage of completeness of student is 83 %.
Improving Students’ Meaningful Reading Aloud Skill using TTS Readers
Authors: Ponikem
Published: November 2020

This study aimed to improve students' reading skills with TTS Readers in 9F Class of SMP Negeri 1 Wonosari in the 2nd Semester of 2017/2018 Academic Year. The actions given were in the form of learning that emphasized loud reading activities facilitated by the TTS Readers application. This research consisted of two cycles with two meetings each. Research stages included planning, doing and observing, and reflecting. Data were taken through questionnaires and observations. The results of the questionnaire were tabulated and processed and then compared with the determined indicators to measure their improvement and achievement. Observation data were processed by calculating the percentage of the number of words that were correctly pronounced then compared with the indicators to find out the increase and achievement. The results of the study were the increase in students' reading aloud skills as evidenced by the achievement of indicators, namely the average of students who were included in the Frequent and Always category of 64.2% of the target of 50%. Classical mastery in achieving reading aloud skills was 62.5% in Cycle 1 to 100% in Cycle 2 of the minimum target which is formulated in the indicator of success of 75%.
UPAYA PENINGKATAN HASIL BELAJAR SISWA PADA MATERI INTEGRASI NASIONAL DALAM BINGKAI BHINNEKA TUNGGAL IKA MENGGUNAKAN MODEL PEMBELAJARAN DISCOVERY LEARNING PADA SISWA KELAS X MIPA SMA NEGERI 1 SAMIGALUH
Authors: Nurjanah Nurjanah
Published: November 2020

Penelitian ini bertujuan untuk mengetahui upaya meningkatkan hasil belajar PKn pada materi Integrasi Nasional dalam Bingkai Bhinneka Tunggal Ika di kelas X MIPA SMA Negeri 1 Samigaluh Kulonprogo melalui penerapan model pembelajaran discovery learning. Jenis penelitian ini adalah penelitian tindakan kelas yang terdiri dari empat tahapan yaitu perencanaan, pelaksanaan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas X MIPA SMA Negeri 1 Samigaluh Kulonprogo. Teknik pengumpulan data menggunakan wawancara, observasi, dan dokumentasi. Teknik analisis data yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Berdasarkan hasil penelitian disimpulkan bahwa metode discovery learning dapat meningkatkan hasil belajar PKn siswa kelas X MIPA SMA Negeri 1 Samigaluh. Hasil penelitian menunjukkan bahwa nilai rata-rata pra siklus 71,6 dengan presentase ketuntasan sebesar 22,2%. Nilai rata-rata tes siklus I yaitu 76,3 dengan presentase ketuntasan sebesar 50% dan nilai rata-rata tes siklus II yaitu 85,6 dengan presentase ketuntasan sebesar 100%.
PENINGKATAN KETERAMPILAN GURU DALAM PEMBUATAN MEDIA PEMBELAJARAN BERBASIS LECTORA INSPIRE 17 MELALUI WORKSHOP DI SMK NEGERI 1 PAJANGAN
Authors: Pariyana Pariyana
Published: November 2020

Penelitian ini bertujuan untuk meningkatkan keterampilan guru SMK Negeri 1 Pajangan Kabupaten Bantul dalam pembuatan media pembelajaran berbasis Lectora Inspire 17 melalui workshop. Jenis penelitian ini adalah penelitian tindakan sekolah dengan subyek penelitian adalah guru PNS SMK Negeri 1 Pajangan yang berjumlah 31 orang yaitu 14 guru mata pelajaran Normatif Adaptif, 5 guru Kria Kreatif Kayu Rotan, 6 guru Rekayasa Perangkat Lunak dan 6 guru Desain Pemodelan dan Informasi Bangunan. Penelitian ini terdiri dari dua siklus, untuk setiap siklus melakukan tahap perencanaan, pelaksanaan, pengamatan dan refleksi. Teknik pengumpulan data dengan triangulasi melalui observasi kegiatan workshop, observasi keaktifan guru, dan penilaian media pembelajaran yang dihasilkan. Data yang diperoleh dianalisis dengan analisis deskriptif. Hasil penelitian ini menunjukkan tingkat keterampilan guru dengan kriteria terampil sejumlah 25,81 % (8 guru), siklus I meningkat menjadi 61,29% (19 guru), dan pada siklus II mengalami peningkatan menjadi 87,10% (27 guru), sehingga terjadi peningkatan antara kondisi pra tindakan dan siklus I sebesar 35,48% dan antara siklus I dan siklus II terjadi peningkatan sebesar 25, 81%. Berdasarkan hasil analisis data dapat disimpulkan bahwa kegiatan workshop dapat meningkatkan keterampilan guru SMK Negeri 1 Pajangan dalam pembuatan media pembelajaran berbasis Lectora Inspire 17.
PENGGUNAAN FLOW CHART UNTUK MENINGKATKAN KETERAMPILAN MENULIS NARASI SISWA KELAS VIII SMP N 25 PURWOREJO
Authors: Rina Tri Indrianingrum
Published: November 2020

Penelitian ini bertujuan untuk mengetahui peningkatan keterampilan menulis narasi siswa kelas VIII SMP N 25 Purworejo dengan menggunakan media flow chart. Metode penelitian yang dipergunakan adalah penelitian tindakan kelas atau classroom action research. Hasil penelitian sebagai berikut: (1) Dari empat puluh siswa yang mengikuti praktik mengarang narasi dengan pendekatan proses dan media flow chart, 40 siswa mengalami kenaikan skor. (2) Sebelum diberi tindakan kemampuan menulis siswa sangat kurang dengan rata-rata skor karangan narasi siswa 56,45 dengan skor terendah 34 dan skor tertinggi 70. Setelah diberi tindakan, yaitu pada siklus pertama, kemampuan menulis siswa cukup meningkat dengan rata-rata skor karangan narasi siswa adalah 64,68 dengan skor terendah 60 dan skor tertinggi 75. Sementara itu, setelah diberi tindakan kedua, yaitu pada siklus kedua, kemampuan menulis siswa lebih meningkat dengan rata-rata skor karangan narasi adalah 77, 38 dengan skor terendah 70 dan skor tertinggi sebesar 82. Dan setelah diberi tindakan ketiga, yaitu pada siklus ketiga, kemampuan menulis siswa meningkat lagi dengan rata-rata skor karangan narasi adalah 81, 65 dengan skor terendah 71 dan skor tertinggi sebesar 85.
PENERAPAN METODE PERMAINAN KARTU KWARTET UNTUK MENINGKATKAN PRESTASI BELAJAR DAN KEAKTIFAN BELAJAR PADA MATERI KLASIFIKASI MAKHLUK HIDUP KELAS VII SMP N 1 SEMIN
Authors: Prasetyaningtyas Susi
Published: November 2020

Penelitian ini bertujuan untuk meningkatkan prestasi belajar dan keaktifan belajar siswa kelas VII pada materi Klasifikasi Makhluk Hidup melalui penerapan metode permainan kartu kwartet dan mengetahui respon siswa terhadap penerapan metode permainan kartu kwartet. Penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK). Penelitian ini dilaksanakan 2 siklus dan masing-masing siklus 2 kali pertemuan. Subyek penelitian adalah siswa kelas 7C SMP N 1 Semin Gunungkidul. Hasil penelitian ini menunjukkan bahwa penerapan metode permainan kartu kwartet pada materi Klasifikasi Makhluk Hidup dapat meningkatkan prestasi belajar dan keaktifan belajar siswa. Prestasi belajar ditunjukkan dengan naiknya presentase ketuntasan belajar. Pada prasiklus adalah 6,25% dengan kategori sangat rendah, siklus I adalah 68,75% dengan kategori sedang dan siklus II adalah 84,375% dengan kategori tinggi. Keaktifan belajar menunjukkan kenaikan skor rata-rata, yaitu siklus I adalah 64% dengan kategori sedang dan siklus II menjadi 87,5% dengan kategori tinggi. Respon siswa menunjukkan 100% siswa senang terhadap penerapan metode permainan kartu kwartet.
MANFAAT PEMBELAJARAN SEJARAH MENGGUNAKAN GOOGLE CLASSROOM PADA MASA PANDEMI COVID-19
Authors: Marharjono Marharjono
Published: November 2020

Tujuan penulisan artikel ini untuk mengetahui pelaksanaan dan nilai nilai  pembelajaran sejarah menggunakan Google Classroom masa pandemic covid-19 pada kelas XI MIPA 2 di SMA Negeri 1 Sewon. Pelaksanaan pembelajaran berlangsung delapan kali pertemuan. Manfaat pembelajaran daring menggunakan Google Classroom peserta didik dapat mengatahui sejarah peristiwa sekitar proklamasi, pembentukan pemerintahan Republik Indonesia, perjuangan menghadapi kekuasaan Jepang, perjuangan menghadapi kedatangan Sekutu dan Belanda, serta perjuangan meghadapi aancaman Belanda melalui konfontasi militer dan deplomasi.  Kelebihan  penggunaan Google Classroom,  guru dan peserta didik menjadi terbiasa  menggunakan pembelajaran  daring. Hambatan penggunaan Google Classroom, guru dan peserta didik  tidak dapat bertatap muka langsung dalam pembelajaran. Apabila sarana kurang memadai dapat menghambat pembelajaran daring. Nilai-nilai mempelajari materi sejarah revolusi kemerdekaan Indonesia antara lain: 1) sabar dan bijaksana; 2) kerja keras; 3) rela berkorban tanpa pamrih;  4) pantang menyerah;  5) nasionalisme;  6) cinta tanah air; 7) saling menghargai.
STRATEGI THINK, TALK, WRITE UNTUK MENINGKATKAN KETERAMPILAN MENULIS LA DISPONIBILITÉ DAN LA VOLONTÉ
Authors: Sri Moerni
Published: November 2020

Tujuan penelitian adalah meningkatkan keterampilan menulis dalam bahasa Perancis pada kompetensi dasar la disponibilité dan la volonté dengan menggunakan strategi Think, Talk, Write bagi siswa kelas XI IPS 1 SMA Negeri 10 Yogyakarta tahun pelajaran 2019-2020. Metode penelitian yang digunakan adalahPenelitian Tindakan Kelas. Didalam penelitian ini diaparkan awal pemberian perlakuan sampai dampak dari perlakuan tersebut. Hasil penelitian menunjukkan adanya 1). Kenaikan hasil belajar dari prasiklus ke siklus satu sebesar 19,03% dan dari siklus satu ke siklus kedua sebesar 14,29%. 2) Dengan strategi pembelajaran Think, Talk, Write ini, diawali dengan siswa memahami materi secara individu melalui kegiatan membaca, berdiskusi dalam kelompok, setiap kelompok terdiri atas 3 orang, dan kegiatan pembelajaran diakhiri dengan siswa menuliskan gagasan secara mandiri. Siswa menjadi lebih fokus dan antusias dalam mengikuti pembelajaran. Dengan strategi Think, Talk, Write maka empat tahapan kompetensi belajar bahasa dilalui dengan baik, mulai dari memahami, berbicara, membaca dan menulis.
PENINGKATAN KEAKTIFAN DAN HASIL BELAJAR SISWA PADA MATA PELAJARAN PENGETAHUAN BAHAN MAKANAN MELALUI PUZZLE
Authors: Purwanti Heni
Published: November 2020

Penelitian tindakan kelas ini bertujuan untuk mencari pemecahan masalah terhadap rendahnya aktivitas dan hasil belajar siswa dalam mata pelajaran Pengetahuan Bahan Makanan. Subyek penelitian ini siswa kelas X Kuliner 6 di SMK Negeri 4 Yogyakarta dengan jumlah siswa 36 siswa. Penelitian dilaksanakan dalam dua siklus yang masing-masing siklus terdiri dari 2 kali pertemuan, dengan langkah-langkah penelitian berupa perencanaan, pelaksanaan, pengamatan dan refleksi. Hasil penelitian menunjukkan bahwa, dengan dilaksanakan pembelajaran menggunakan media puzzle dapat meningkatkan aktivitas belajar pada siswa. Pada kondisi awal (prasiklus) nilai rata-rata hasil belajar siswa 60,88 dan baru 38,89 % siswa mencapai KKM yang ditetapkan sebesar 75. Nilai rata-rata hasil belajar siswa pada siklus I pertemuan 1 sebesar 68,89 dengan ketuntasan belajar 41,67 % dan pada siklus I pertemuan 2 nilai rata-rata hasil belajar siswa sebesar 72,55 dengan ketuntasan belajar 47,22%. Pada siklus II pertemuan 1 nilai rata-rata hasil belajar siswa sebesar 88,39 dengan ketuntasan belajar 94,44 % sedang pada siklus II pertemuan 2 nilai rata-rata hasil belajar siswa sebesar 82,63 dengan ketuntasan belajar 97,22 %. Berdasarkan hasil penelitian, disimpulkan media pembelajaran puzzle dapat meningkatkan aktivitas dan hasil belajar siswa kelas X Kuliner 6 di SMKN 4 Yogyakarta pada mata pelajaran Pengetahuan Bahan Makanan.
THE EFFORTS TO IMPROVE MOTIVATION IN PHYSICS LEARNING BY USING SCRAMBLE LEARNING MODEL
Authors: Santoso Agus
Published: November 2020

The background of this research is the low learning motivation of students of SMK Negeri 1 Ngawen. This is indicated by the lack of ability to ask questions, thoroughness in doing questions, still cheating, the desire to find learning resources and so on. The purpose of this study was to determine the use of the scramble learning model to increase motivation to learn physics in students of SMK Negeri 1 Ngawen for the 2019/2020 academic year. This type of research is classroom action research. This research was conducted in two cycles. The subjects in this study were 31 students of class X TAB B of SMK Negeri 1 Ngawen in the 2019/2020 academic year, consisting of 16 female students and 15 male students. The data were collected using the observation method, the test method, the questionnaire method and the documentation method. After the data was obtained, it was analyzed using a percentage scale. The results of the study can be concluded that through the use of scramble learning models in learning physics can increase the learning motivation of students of SMK Negeri 1 Ngawen. This can be seen from the observation data of student learning motivation increased from 46.94% in the pre-cycle to 60.81% in the first cycle and increased again to 73.39% in the second cycle. The percentage of students' motivation questionnaire increased 58.06% in the pre-cycle to 72.90% in the first cycle and to 81.29% in the second cycle. This increase in learning motivation has an effect on improving learning outcomes. This is indicated by the increase in the average score of students. The mean score of students increased from 59.98 with completeness 38.71% in the pre-cycle to 77.66 with 80.69% completeness in cycle I and increased again to 85.97 with completeness of 93.97% in cycle II.
Rapid and sustained environmental responses to global warming: The Paleocene–Eocene Thermal Maximum in the eastern North Sea
Authors: Stokke Ella W. , Jones Morgan T. , Riber Lars , Haflidason Haflidi , Midtkandal Ivar , Schultz Bo Pagh , Svensen Henrik H.
Published: November 2020

Abstract. The Paleocene–Eocene Thermal Maximum (PETM; ~ 55.9 Ma) was a period of rapid and sustained global warming associated with significant carbon emissions. It coincided with the North Atlantic opening and emplacement of the North Atlantic Igneous Province (NAIP), suggesting a possible causal relationship. Only a very limited number of PETM studies exist from the North Sea, despite its ideal position for tracking the impact of both changing climate and the NAIP explosive and effusive activity. Here we present sedimentological, mineralogical, and geochemical proxy data from Denmark in the eastern North Sea, exploring the environmental response to the PETM. An increase in the chemical index of alteration and a kaolinite content up to 50 % of the clay fraction indicate an influx of terrestrial input shortly after the PETM onset and during the recovery, likely due to an intensified hydrological cycle. The volcanically derived minerals zeolite and smectite comprise up to 36 % and 90 % of the bulk and clay mineralogy respectively, highlighting the NAIPs importance as a sediment source for the North Sea and in increasing the rate of silicate weathering during the PETM. XRF element core scans also reveal possible hitherto unknown NAIP ash deposition both prior to and during the PETM. Geochemical proxies show that an anoxic environment persisted during the PETM body, possibly reaching euxinic conditions in the upper half with high concentrations of Mo (> 30 ppm), S (~ 4 wt %), and pyrite (~ 7 % of bulk), and low Th/U (
MIS 5e sea-level proxies in the eastern Mediterranean coastal region
Authors: Mauz Barbara , Sivan Dorit , Galili Ehud
Published: November 2020

Abstract. Mediterranean raised beaches were subject to Quaternary research since the early years of the 20th century. The uniqueness of a warm-loving molluscs fauna immigrating into the Mediterranean made the coastline a prime subject for studying Quaternary sea-level changes. Today, we have a detailed picture of this historically important coastline characterised by tectonically dormant coastal zone alternating with zones that are subject to subsidence or uplift. As part of the Word Atlas of last interglacial shorelines (WALIS) database we compiled 21 MIS 5e proxies for the for the eastern Mediterranean area available at http://doi.org/10.5281/zenodo.4274178 (Israel; Sivan and Galili, 2020) and at http://doi.org/10.5281/zenodo.4283819 (Turkey, Egypt, Tunisia; Mauz, 2020). All these datapoints are sea-level indicators of variable quality situated between −1 ± 4 m and 7 ± 2 m resulting in a reconstructed MIS 5e palaeo-sea level situated between −1 ± 4 m and 13 ± 10 m.
Communicating uncertainties in spatial predictions of grain micronutrient concentration
Authors: Chagumaira Christopher , Chimungu Joseph G. , Gashu Dawd , Nalivata Patson C. , Broadley Martin R. , Milne Alice E. , Lark R. Murray
Published: November 2020

Abstract. The concentration of micronutrients in staple crops varies spatially. Quantitative information about this can help in designing efficient interventions to address micronutrient deficiency. Concentration of a micronutrient in a staple crop can be mapped from limited samples, but the resulting statistical predictions are uncertain. Decision makers must understand this uncertainty to make robust use of spatial information, but this is a challenge due to the difficulties of communicating quantitative concepts to a general audience. We proposed strategies to communicate uncertain information and present a systematic evaluation and comparison in the form of maps. We proposed to test five methods to communicate the uncertainty about the conditional mean grain concentration of an essential micronutrient, selenium (Se). Evaluation of the communication methods was done through questionnaire by eliciting stakeholder opinions about the usefulness of the methods of communicating uncertainty. We found significant differences in how participants responded to the different methods. In particular there was a preference for methods based on the probability that concentrations are below or above a nutritionally-significant threshold compared with general measures of uncertainty such as the confidence interval of a prediction. There was no evidence that methods which used pictographs or calibrated verbal phrases to support the interpretation of probabilities made a different impression than probability alone, as judged from the responses to interpretative questions, although these approaches were ranked most highly when participants were asked to put the methods in order of preference.
Focus on glaciers: a geo-photo exposition of vanishing beauty
Authors: Rossi Giuliana , Böhm Gualtiero , Saraò Angela , Cotterle Diego , Facchin Lorenzo , Giurco Paolo , Lucchi Renata Giulia , Musco Maria Elena , Petrera Francesca , Picotti Stefano , Salon Stefano
Published: November 2020

Abstract. Scientific research, respect for the environment, and passion for photography merged into an exceptional heritage of images collected by the researchers and technicians of the National Institute of Oceanography and Applied Geophysics (OGS). The images were taken during past scientific
expeditions conducted all over the world to widen scientific knowledge in
the fields of Earth and ocean sciences, to raise awareness on the environment and conservation of natural resources, and to mitigate natural risks. In this paper, we describe a photographic exhibition organized using some of the OGS images to draw public attention to the striking effects of global warming. In the artistic images displayed, the glaciers were the
protagonists. Their infinite greyish blue shades and impossible shapes were
worthy of a great sculptor, and the boundaries with rocks or with the sea
were sometimes sharp and dramatic and sometimes so nuanced that they looked
like watercolours. The beauty of the images attracted the attention of the public to unknown
realities, allowing us to document the dramatic retreat of the Alpine
glaciers and to show the majesty of the Arctic and Antarctic landscapes,
which are fated to vanish under the present climate warming trend. The choice of the exhibition location allowed us to reach a broad public of
working-age adults, who are difficult to involve in outreach events. The
creators of the images were present during the exhibition to respond to
visitors' curiosity about research targets, the emotional and environmental
context, and the technical details or aesthetic choices of the photographs.
Sensitivity of aerosol optical properties to the aerosol size distribution over central Europe and the Mediterranean Basin using the WRF-Chem v.3.9.1.1 coupled model
Authors: Palacios-Peña Laura , Fast Jerome D. , Pravia-Sarabia Enrique , Jiménez-Guerrero Pedro
Published: November 2020

Abstract. The size distribution of atmospheric aerosols plays a key role for understanding and quantifying the uncertainties related to aerosol–radiation and aerosol–cloud interactions. These interactions ultimately depend on the size distribution through optical properties (such as aerosol optical depth, AOD) or cloud microphysical properties. Hence, the main objective of this contribution is to disentangle the impact of the representation of aerosol size distribution on aerosol optical properties over central Europe, particularly over the Mediterranean Basin, during a summertime aerosol episode. To fulfill this objective, a sensitivity test has been conducted using the coupled chemistry–meteorology model WRF-Chem (Weather Research Forecast model coupled with Chemistry). The test modified the parameters defining a lognormal size distribution (geometric diameter and standard deviation) by 10 %, 20 %, and 50 %. Results reveal that the reduction in the standard deviation of the accumulation mode leads to the largest impacts on AOD due to a transfer of particles from the accumulation mode to the coarse mode. A reduction in the geometric diameter of the accumulation mode also has an influence on AOD representation since particles in this mode are assumed to be smaller. In addition, an increase in the geometric diameter of the coarse mode produces a redistribution through the total size distribution by relocating particles from the finer modes to the coarse.
SPEAD 1.0 – A model for Simulating Plankton Evolution with
Adaptive Dynamics in a two-trait continuous fitness landscape
applied to the Sargasso Sea
Authors: Le Gland Guillaume , Vallina Sergio M. , Smith S. Lan , Cermeño Pedro
Published: November 2020

Abstract. Diversity plays a key role in the adaptive capacities of marine ecosystems to environmental changes. However, modeling phytoplankton trait diversity remains challenging due to the strength of the competitive exclusion of sub-optimal phenotypes. Trait diffusion (TD) is a recently developed approach to sustain diversity in plankton models by allowing the evolution of functional traits at ecological timescales. In this study, we present a model for Simulating Plankton Evolution with Adaptive Dynamics (SPEAD), where phytoplankton phenotypes characterized by two traits, nitrogen half-saturation constant and optimal temperature, can mutate at each generation using the TD mechanism. SPEAD does not resolve the different phenotypes as discrete entities, computing instead six aggregate properties: total phytoplankton biomass, mean value of each trait, trait variances, and inter-trait covariance of a single population in a continuous trait space. Therefore SPEAD resolves the dynamics of the population's continuous trait distribution by solving its statistical moments, where the variances of trait values represent the diversity of ecotypes. The ecological model is coupled to a vertically-resolved (1D) physical environment, and therefore the adaptive dynamics of the simulated phytoplankton population are driven by seasonal variations in vertical mixing, nutrient concentration, water temperature, and solar irradiance. The simulated bulk properties are validated by observations from BATS in the Sargasso Sea. We find that moderate mutation rates sustain trait diversity at decadal timescales and soften the almost total inter-trait correlation induced by the environment alone, without reducing the annual primary production or promoting permanently maladapted phenotypes, as occur with high mutation rates. As a way to evaluate the performance of the continuous-trait approximation, we also compare the solutions of SPEAD to the solutions of a classical discrete entities approach, both approaches including TD as a mechanism to sustain trait variance. We only find minor discrepancies between the continuous model SPEAD and the discrete model, the computational cost of SPEAD being lower by two orders of magnitude. Therefore SPEAD should be an ideal eco-evolutionary plankton model to be coupled to a general circulation model (GCM) at the global ocean.
Unraveling the origins and P-T-t evolution of the allochthonous Sobrado unit (Órdenes Complex, NW Spain) using combined U–Pb titanite, monazite and zircon geochronology and rare-earth element (REE) geochemistry
Authors: Benítez-Pérez José Manuel , Castiñeiras Pedro , Gómez-Barreiro Juan , Martínez Catalán José R. , Kylander-Clark Andrew , Holdsworth Robert
Published: November 2020

Abstract. The Sobrado unit, within the upper part of the Órdenes Complex (NW
Spain) represents an allochthonous tectonic slice of exhumed high-grade
metamorphic rocks formed during a complex sequence of orogenic processes in
the middle to lower crust. In order to constrain those processes, U–Pb
geochronology and rare-earth element (REE) analyses of accessory minerals in migmatitic
paragneiss (monazite, zircon) and mylonitic amphibolites (titanite) were
conducted using laser ablation
split stream inductively coupled plasma mass spectrometry (LASS-ICP-MS). The youngest metamorphic zircon age obtained
coincides with a Middle Devonian concordia monazite age (∼380 Ma)
and is interpreted to represent the minimum age of the Sobrado high-P
granulite facies metamorphism that occurred during the early stages of the
Variscan orogeny. Metamorphic titanite from the mylonitic amphibolites
yield a Late Devonian age (∼365 Ma) and track the progressive
exhumation of the Sobrado unit. In zircon, cathodoluminescence images and
REE analyses allow two aliquots with different origins in the paragneiss to
be distinguished. An Early Ordovician age (∼490 Ma) was
obtained for metamorphic zircons, although with a large dispersion, related
to the evolution of the rock. This age is considered to mark the onset of
granulite facies metamorphism in the Sobrado unit under intermediate-P
conditions, and related to intrusive magmatism and coeval burial in a
magmatic arc setting. A maximum depositional age for the Sobrado unit is
established in the late Cambrian (∼511 Ma). The zircon
dataset also record several inherited populations. The youngest cogenetic
set of zircons yields crystallization ages of 546 and 526 Ma which are thought
to be related to the peri-Gondwanan magmatic arc. The additional presence of
inherited zircons older than 1000 Ma is interpreted as suggesting a West
African Craton provenance.
Interfacial supercooling and the precipitation of hydrohalite in frozen NaCl solutions by X-ray absorption spectroscopy
Authors: Bartels-Rausch Thorsten , Kong Xiangrui , Orlando Fabrizio , Artiglia Luca , Waldner Astrid , Huthwelker Thomas , Ammann Markus
Published: November 2020

Abstract. Laboratory experiments are presented on the phase change at the surface of sodium chloride – water mixtures at temperatures between 259 K and 240 K. Chloride is a ubiquitous component of polar coastal surface snow. The chloride embedded in snow is involved in reactions that modify the chemical composition of snow as well as ultimately impact the budget of trace gases and the oxidative capacity of the overlying atmosphere. Multiphase reactions at the snow – air interface have found particular interest in atmospheric science. Undoubtedly, chemical reactions proceed faster in liquids than in solids; but it is currently unclear when such phase changes occur at the interface of snow with air. In the experiments reported here, a high selectivity to the upper few nanometres of the frozen solution – air interface is achieved by using electron yield near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. We find that sodium chloride at the interface of frozen solutions, which mimic sea-salt deposits in snow, remain as supercooled liquid down to 240 K. Below this temperature, hydrohalite exclusively precipitates, anhydrous sodium chloride is not detected. In this work, we present the first NEXAFS spectrum of hydrohalite. The hydrohalite is found to be stable while increasing the temperature towards the eutectic temperature of 253 K. Taken together, this study reveals no differences in the phase changes of sodium chloride at the interface as compared to the bulk. That sodium chloride remains liquid at the interface upon cooling down to 240 K, which spans the most common temperature range in Polar marine environments, has consequences for interfacial chemistry involving chlorine as well as for any other reactant for which the sodium chloride provides a liquid reservoir at the interface of environmental snow. Implications for the role of surface snow on atmospheric chemistry are discussed.