298 research outputs found

    AgandCuloadedonTiO2/graphite as a catalyst for �Escherichia coli- contaminated water disinfection

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    TiO2 film was synthesized by means of the chemical bath deposition (CBD) method from TiCl4 as a precursor and surfactant cetyl trimethyl ammonium bromide (CTAB) as a linking and assem- bling agent of the titanium hydroxide network on a graphite substrate. Ag and Cu were loaded on the TiO2 film by means of electrodeposition at various applied currents. Photoelectrochemical testing on the composite of Ag–TiO2/G and Cu–TiO2/G was used to define the composite for Escherichia coli-contaminated water disinfection. Disinfection efficiency and the rate of disinfection of E. coli-contaminated water with Ag–TiO2/G as a catalyst was higher than that observed for Cu–TiO2/G in all disinfection methods including photocatalysis (PC), electrocatalysis (EC), and photoelectrocatalysis (PEC). The highest rate constant was achieved by the PEC method using Ag–TiO2/G, k was 6.49 × 10−2 CFU mL−1 min−1 . Effective disinfection times of 24 h (EDT24) and 48 h (EDT48) were achieved in all methods except the EC method using Cu–TiO2/G. Keywords: Ag–TiO2/G, Cu–TiO2/G, Escherichia coli, disinfectio

    Peran Ibu Dalam Mengasuh Anak

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    Deaf and mute are terms used for children who cannot hear and speak. Unability to hear may be low ability to hear or complete unability to hear. Hearing disorders experienced by children with hearing and speech impairment causes delays in the children development. The success of a mother in Kranjingan Village, District of Sumbersari, Jember Regency in taking care of her deafmute child until the child is able to be independent in his daily life and also to ease the burden of his parents in terms of economy is an interesting phenomenon for the author to examine the role of a mother in caring for a child with hearing and speech impairment (A Case Study of Mrs. SW in Kranjingan Village, District of Sumbersari, Jember Regency). The research used qualitative approach with case study research type. Informants were determined by purposive sampling. The analysis method used was based on triangulation of source. The results showed that the role of the mother in parenting her child, in this case, is related to the role of the mother in parenting children in formal education, that is, the mother's roles as child’s primary carer, in worship and religious activities, as a teacher who teaches anything new, trains, guides, directs and assesses whether in the form of educational "reward" and "punishment", the role of the mother in parenting in employment at home, namely the role of the mother as a teacher, the role of the mother in parenting in the application of norms or rules at home is the mother's role as regulating domestic life, and the role of the mother in parenting in community activities is the mother's role as a teacher. Results of analysis obtained that care for children with hearing and speech impaired better and ideal if the mother uses parenting authoritative, parenting authoritative provide warmth to children accompanied by firmness, Mother giving reward and punishment to the child so that the child can be independent and disciplined, and the child does not repeat mistake again

    PENERAPAN MEDIA AUDIO VISUAL DALAM PEMBELAJARANN MENULIS TEKS EKSPLANASI

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    Menulis sebagai salah satu keterampilan dan penunjang kebutuhan ilmu pengetahuan yang merupakan hal vital bagi keberlangsungan hidup masyarakat. Mengacu terhadap pembelajaran di sekolah, keterampilan menulis dijadikan sebagai salah satu keterampilan yang dikaitkan dalam materi ajar bahasa Indonesia. Salah satu materi yang mengasah kemampuan menulis peserta didik yaitu materi teks eksplanasi. Pada artikel ini penulis bertujuan untuk mendeskripsikan tentang penerapan media audio visual dalam pembelajaran menulis teks eksplanasi. Metode yang digunakan dalam pembahasan artikel ini yaitu metode deskriptif kualitatif. Pada pembahasan artikel akan disajikan tentang media pembelajaran, media audio visual, pembelajaran teks eksplanasi dan penerapan media aduio visual dalam pembelajaran menulis teks eksplanasi. Adanya penelitian ini diharapkan dapat dapat membantu peserta didik untuk meningkatkan inovasi dalam menyampaikan materi ajar khususnya dalam pembelajaran bahasa Indonesia.Kata kunci: media audio visual, pembelajaran menlis, teks eksplanasi  Writing as one of the skills and supporting the needs of science which is vital for the survival of the community. Referring to learning at school, writing skills are used as one of the skills associated with Indonesian language teaching materials. One of the materials that hone students' writing skills is explanatory text material. In this article, the author aims to describe the application of audio-visual media in learning to write explanatory texts. The method used in the discussion of this article is a qualitative descriptive method. In the discussion of the article will be presented about learning media, audio visual media, explanatory text learning and the application of audio visual media in learning to write explanatory texts. The existence of this research is expected to be able to help students to increase innovation in delivering teaching materials, especially in learning Indonesian. Keywords: audio visual media, writing learning, explanatory text

    Effect of Mg2+ and Fe2+ Concentrations in Culture Medium on CGF Formation from Microalgae Chlorella Pyrenoidosa Ink and Analysis of Amino Acids by Liquid Chromatography-Mass Spectrometry

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    Chlorella pyrenoidosa (C. pyrenoidosa) contains Chlorella Growth Factor (CGF), which consists of proteins and polysaccharides. CGF is located inside the nucleus of cells and is beneficial to humans as a food supplement, an immunity booster, and an antioxidant. CGF formation of C. pyrenoidosa is influenced by medium composition. C. pyrenoidosa INK was cultured in a modified basal medium (MBM) with various concentrations of Mg2+ (0.5, 1.0, and 1.5 g/L) and Fe2+ (3.5×10-4 and 5.0×10-4 g/L). The experiments were performed and analyzed under a completely randomized design using a 2-L bottle with three replications. The results showed that MBM with 1.0 g/L of Mg2+ and 3.5×10-4 g/L of Fe2+ yielded the optimal growth curve for C. pyrenoidosa. Analysis of protein content was carried out using the Lowry method with a spectrophotometer at λ=750 nm, and the obtained results were 0.0974 mg/mL (extract) and 6.4097 mg/ml (supernatant). Furthermore, analysis of glucose content was carried out using the phenol sulfate method (λ = 490 nm), and the obtained results were 49.331 ppm (extract) and 1566.911 ppm (supernatant). Analysis of amino acids in CGF using liquid chromatography-mass spectrometry (LC-MS) indicated the presence of tyrosine, proline, glutamate, alanine, valine, tryptopan, phenylalanine, methionine, and leucine-isoleucine

    Game Edukasi Belajar Alat-alat Transportasi Untuk Anak Berkebutuhan Khusus (ABK) Tunagrahita Di Sekolah Luar Biasa (SLB) Rahmawati Kholid Karanganyar

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    Means of transportation are something that is closely related to life and never escapes sight. Therefore, it is very important to learn it, especially for children who are starting to enter school. Apart from normal children, the category of children who need more attention is children with special needs (ABK) who are mentally retarded. Mentally retarded children are a group of children whose thinking patterns are not like normal children in general, this category of children tends to be slow and difficult to think. At the Rahmawati Kholid Special School (SLB), learning methods related to transportation equipment currently still use the old method, namely with the help of visual media such as pictures, LKS books and so on. This method does not attract the attention of mentally retarded students, students tend to get bored easily and get fed up with learning. This makes students do things outside of learning, such as disturbing friends, running around, thus creating a teaching and learning atmosphere that is not conducive. Based on the problems that occurred, the author has conducted interviews and discussions with teachers at the school, the result is that this SLB requires an educational game-based application as a companion medium for learning related to transportation. It is hoped that the design of this educational game can create more enjoyable teaching and learning activities as well as foster interest and motivate students to learn. The author used the Construct 2 application to design this game and was guided by the GDLC (Game Development Life Cycle) method in developing the game. The game that has been designed is tested in 2 stages, namely alpha testing using a black box to minimize errors and beta testing using the SUS method. The results of usability testing calculations using the (SUS) method obtained an average score of 84.58 so this application can be classified in the Excellent category and get grade B

    Emotional Analysis of the Main Character in Leiden by Dwi Nur Rahmawati: Implications for Literature Education in the Merdeka Curriculum

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    This study examines the emotional dynamics of the main character in Dwi Nur Rahmawati\u27s Leiden and analyzes how these emotions can inform literature teaching within the Merdeka Curriculum. Employing a descriptive mixed-methods design, the research integrates qualitative literary psychology analysis with quantitative frequency mapping. Data were collected through systematic reading, identification of emotional expressions, structured recording, and coding of 76 emotional quotations from the novel. Analysis followed Miles, Huberman, and Saldaña\u27s interactive model to classify emotion types, examine narrative contexts, identify patterns, and interpret pedagogical relevance. The findings revealed three significant patterns. First, sadness emerged as the dominant emotion (18.4%), followed by love and fear (14.5% each) and guilt (11.8%), indicating the protagonist\u27s psychological vulnerability characteristic of adolescent development. Second, nonverbal behavior (39.5%) and author narration (35.5%) appeared more frequently than dialogue (25%), demonstrating a "show, don\u27t tell" characterization strategy requiring inferential reading. Third, complex emotions appeared in 10.5% of instances, exclusively through author narration, reflecting psychological nuance demanding higher-order interpretation. These emotional patterns are pedagogically relevant because they mirror adolescents\u27 socioemotional experiences and provide opportunities for developing empathy, emotional literacy, and analytical reading skills. The findings demonstrate that emotional analysis can serve as a foundation for designing character-oriented literature activities aligned with Phase F learning outcomes in the Merdeka Curriculum. The study contributes empirical support for integrating literary psychology into Indonesian literature classrooms through structured emotional mapping and offers practical guidance for teachers seeking to enhance students\u27 character formation and critical comprehension within curriculum frameworks emphasizing competency-based, analytical, and reflective learning

    PENGGUNAAN GAYA MENGAJAR INKLUSI UNTUK MENINGKATKAN HASIL BELAJAR SERVIS BAWAH BOLAVOLI MINI PADA SISWA KELAS IV SD N 1 PUHPELEM KABUPATEN WONOGIRI TAHUN AJARAN 2015/2016

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    ABSTRAK Aprilia Rahmawati. PENGGUNAAN GAYA MENGAJAR INKLUSI UNTUK MENINGKATKAN HASIL BELAJAR SERVIS BAWAH BOLAVOLI MINI PADA SISWA KELAS IV SD N 1 PUHPELEM KABUPATEN WONOGIRI TAHUN AJARAN 2015/2016 . Skripsi Falkultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret. Mei 2016. Tujuan Penelitian ini adalah untuk meningkatkan hasil belajar servis bawah bolavoli mini menggunakan gaya mengajar inklusi pada siswa kelas IV SD N 1 Puhpelem Kabupaten Wonogiri Tahun ajaran 2015/2016. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Penelitian ini dilakukan dalam dua siklus, dan setiap siklusnya dilaksanakan dua kali pertemuan. Subjek dalam Penelitian Tindakan Kelas ini adalah siswa kelas IV SD N 1 Puhpelem Kabupaten Wonogiri yang berjumlah 25 siswa dengan komposisi 14 siswa putra dan 11 siswa putri. Sumber data dalam Penelitian ini berasal dari siswa, peneliti dan guru yang bertindak sebagai kolaborator. Teknik pengumpulan data menggunakan tes dan observasi. Validitas data menggunkan teknik triangulasi. Analisis data menggunakan teknik deskriptif kualitatif yang didasarkan pada analisis kualitatif prosentase. Dari hasil analisis data diperoleh peningkatan hasil belajar servis bawah bolavoli mini pada siklus 1 yang dinyatakan tuntas mencapai 60% atau sebanyak 15 siswa dari 25 siswa. Peningkatan hasil belajar servis bawah bolavoli mini juga terjadi pada siklus 2 dengan prosentase sebesar 84% atau sebanyak 21 siswa yang tergolong kriteria Tuntas dengan KKM 75 dan 4 siswa lainnya tergolong dalam kategori Tidak Tuntas. Berdasarkan hasil penelitian dapat disimpulkan bahwa : penggunaan gaya mengajar inklusi dapat meningkatkan hasil belajar servis bawah bolavoli mini pada siswa kelas IV SD N 1 Puhpelem Kabupaten Wonogiri Tahun Ajaran 2015/2016. Kata kunci : Hasil Belajar, Servis Bawah Bolavoli Mini, Penggunaan Gaya Mengajar Inklusi ABSTRACT Aprilia Rahmawati. USING INCLUSION TEACHING STYLE TO INCREASE THE LEARNING OUTCOME OF UNDERHAND SERVICE MINI VOLLEYBALL ON THE 4th GRADE OF SD N 1 PUHPELEM WONOGIRI DISTRICT IN THE SCHOOL YEAR OF 2015/2016. Thesis, Teacher Training and Education Faculty of Sebelas Maret University. May 2016. The purpose of this research was to improve the learning outcome of underhand service mini volleyball using inclusion teaching style in the student grade 4 of SD N 1 Puhpelem Wnogiri District in the school year of 2015/2016. This research was A Classroom Action Research (CAR). This research was conducted in two cycles, each of which was implemented in two meetings. The subject of classroom action research was the 4th graders of SD N 1 Puhpelem Wonogiri District consisting of 25 students with composition 14 male and 11 female. Data source of research derived from students, author and teacher. Techniques of collecting data used were test and observation. Data validation was carried out using data triangulation technique. Data analysis was conducted using a descriptive qualitative technique based on percentage qualitative analysis. From the result of data analysis on the learning outcome of underhand service mini volleyball in firts cycle, it could be found that 60% or 15 out of students passing successfully. The improvement of underhand service mini volleyball learning outcome occurred as well in cycle II with 84% or 21 belonging to Successfully Passing Category with KKM (Minimum Passing Criterion) of 75 and other 4 students belonged to not passing successful. Considering the result of research, it could be concluded that: using of inclusion teaching style could improve the learning outcome of underhan service mini volleyball in the 4th Graders of SD N 1 Puhpelem District Wonogiri in the school year of 2015/2016. Keywords : Learning Outcome, Underhand Service Mini Volleyball, Inclusion Teaching Styl

    HUBUNGAN KESTABILAN EMOSI DENGAN PROBLEM SOLVING PADA MAHASISWA YANG BEKERJA PARUH WAKTU

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    ABSTRAK HUBUNGAN KESTABILAN EMOSI DENGAN PROBLEM SOLVING PADA MAHASISWA YANG BEKERJA PARUH WAKTU Oleh : Fivi Rahmawati Mahasiswa yang bekerja paruh waktu harus menjalani peran lebih berat dibandingkan mahasiswa yang tidak bekerja. Sambil menjalankan perkuliahan mereka di kampus, mahasiswa tersebut juga dibebani dengan tanggung jawab untuk mampu menyelesaikan tugas—tugas di tempat kerja mereka Berbagai masalah juga dihadapi oleh mahasiswa yang bekerja paruh waktu ditempat kerjanya termasuk kerja yang ajeg, perselisihan relasional dengan sesama rekan kerja dan dengan atasan, kompetisi, gaji yang kurang mencukupi, dan akumulasi beban kerja. Penelitian ini bertujuan untung mengetahui hubungan kestabilan emosi dengan problem solving pada mahasiswa yang bekerja paruh waktu. Populasi dalam penelitiian ini adalah mahasiswa yang kuliah sambil bekerja paruh waktu dengan sampel penelitian berjumlah 272 orang yang dianalisis menggunakan metode kuantitatif dan menggunakan teknik purposive sampling. Skala yang digunakan yaitu skala kestabilann emosi dengan jumlah 23 aitem (a = 0,906), skala problem solving dengan jumlah 23 aitem (a = 0,901) Perhitungan analisis data dalam penelitian ini menggunakan bantuan software JASP 18.1 for windows Berdasarkan hasil uji yang telah dilakukan menunjukkan bahwa ada hubungan yang signifikan antara kestabilan emosi dengan problem solving pada mahasiswa yang bekerja paruh waktu, dengan nilai koefisien R=0,612 dan nilai F=161.295 dengan taraf signifikan p<0.001, dengan Sumbangan efektif dari variabel independen ini sebesar 37.4% terhadap problem solving. Kata Kunci : Kestabilan Emosi, Problem Solving. ABSTRACT THE RELATIONSHIP OF EMOTIONAL STABILITY AND PROBLEM SOLVING IN STUDENTS WHO WORK PART-TIME Author : Fivi Rahmawati Students who work part time have to take on heavier roles than students who don't work. While carrying out their studies on campus, these students are also burdened with the responsibility of being able to complete tasks at their workplace. Various problems are also faced by students who work part time at their workplace, including steady work, relational disputes with fellow colleagues and with superiors. , competition, insufficient salaries, and accumulated workload. This research aims to find out the relationship between emotional stability and problem solving in students who work part time. The population in this research were students who studied while working part time with a research sample of 272 people who were analyzed using quantitative methods and using purposive sampling techniques. The scales used are the emotional stability scale with a total of 23 items (a = 0.906), the problem solving scale with a total of 23 items (a = 0.901). Based on the results of tests that have been carried out, it shows that there is a significant relationship between emotional stability and problem solving in students who work part time, with a coefficient value of R=0.612 and a value of F=161.295 with a significant level of p<0.001, with an effective contribution from this independent variable. amounting to 37.4% for problem solving. Keywords: Emotional Stability, Problem Solving

    PERJUANGAN SEORANG MUSLIMAH DALAM MEMPERTAHANKAN EKSISTENSINYA DI LINGKUNGAN MASYARAKAT EROPA DALAM NOVEL 99 CAHAYA DI LANGIT EROPA KARYA HANUM SALSABIELA RAIS DAN RANGGA ALMAHENDRA (KAJIAN SOSIOLOGI SASTRA)

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    Rahmawati, Aprilia Tirta. 2017. The Struggle of a muslimah maintain its existence in Europe Community in Novel 99 Cahaya di Langit Eropa by Hanum Salsabiela Rais and Rangga Almahendra assessment of the sociology literature. Skripsi. Bachelor program Indonesian Literature. Semarang. Faculty of Humanities. Diponegoro University. Advisor: Dr.Redyanto Noor, M.Hum. and Fajrul Falah, S.Hum., M.hum. The novel by Hanum Salsabiela Rais and Rangga Almahendra became the material object in the research that the writer did to reveal the struggle of a Muslimah in addressing the social problem described in novel 99Cahaya di Langit Eropa . Through the fictional structure of the intrinsic character of character, and setting the author to analyze the problem in the novel and then from the aspect is analyzed using the approach of sociology of literature. The result of the analysis of novel 99 Cahaya di Langit Eropa through fictional structure, that is intrinsic character of character and setting character shows some character of a muslimah in accordance with characteristic of a Muslimah in essence, and emerged social conflict which described by setting in novel where existence of conflict happened on the character with the environment. The existence of social conflict faced by a Muslim in minority area is a pout, difficult to get a work because wearing hijab, and discrimination experienced so as to bring up character of a Muslim woman described by some woman figure in novel which fight for existence where dare to show identity as a muslimah despite receiving unfavorable treatment. The struggle of a Muslimah figure in the novel 99 Cahaya di Langit Eropa is described through the life of Hanum during her life as a minority and Hanum's business along with other Muslimah leaders in strengthening the faith as a Muslim by spreading the good and daring to show the identity as a Muslimah who has good moral as well loving a peace. Keywords: Social Conflict, Spiritual Conflict, Fictional Structure, Sociology of Literature

    Perbandingan Metode Single Moving Average dan Single Exponential Smoothing pada Peramalan Tingkat Inflasi Kota Medan Tahun 2020 Berdasarkan Data Tahun 2010-2019

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    The country's economy is one of the important factors in achieving people's welfare. One of the concerns of the government on the economy in a region or country is the problem of inflation movement. Inflation is a macro economic event that can describe the activities and successes achieved by economic activities. Of the 33 cities and regencies in North Sumatra, the economic cog outside the primary sector is the economy of Medan City so that this city often contributes high inflation to North Sumatra. This study aims to determine the level of inflation in Medan in 2020 and find out the most effective method used in future studies. The data used by the author are secondary data obtained from the Central Statistics Agency of North Sumatra Province. The method that will be used in this research is the single moving average and single exponential smoothing methods. Based on the research conducted, it was concluded that the most effective method used was the 4-year single moving average method with the lowest error rate (MSE) of 8.10 and the estimated inflation results obtained were 3.30.Perekonomian negara merupakan salah satu faktor penting untuk mencapai kesejahteraan masyarakat. Salah satu yang menjadi perhatian pemerintah terhadap perekonomian di suatu wilayah maupun negara adalah masalah pergerakan inflasi. Inflasi merupakan peristiwa ekonomi secara makro yang dapat menggambarkan aktivitas dan keberhasilan yang dicapai oleh kegiatan ekonomi. Dari 33 Kota dan Kabupaten di Sumatera Utara, maka roda penggerak ekonomi di luar sektor primer adalah perekonomian Kota Medan sehingga kota ini sering menyumbangkan inflasi yang cukup tinggi untuk Sumatera Utara. Penelitian ini bertujuan untuk mengetahui tingkat inflasi Kota Medan tahun 2020 dan mengetahui metode yang paling efektif digunakan pada penelitian selanjutnya. Data yang digunakan penulis adalah data sekunder yang diperoleh dari Badan Pusat Statistik Provinsi Sumatera Utara. Metode yang akan digunakan pada penelitian ini adalah metode single moving average dan single exponential smoothing. Berdasarkan penelitian yang dilakukan, diperoleh kesimpulan bahwa metode yang paling efektif digunakan adalah metode single moving average 4 tahunan dengan tingkat kesalahan (MSE) terkecil sebesar 8,10 dan hasil perkiraan inflasi yang didapat adalah 3,30.87 HalamanKertas Karya Diplom
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