Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal LINK Union: Jurnal Ilmiah Pendidikan Matematika JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Bahan Alam Terbarukan
Ratna Kusuma
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Dentistry Education Health Professions Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
UPAYA MENINGKATKAN KEAKTIFAN DAN PRESTASI BELAJAR MATEMATIKA MELALUI PEMBELAJARAN KONSTRUKTIVISME SISWA KELAS VIII SMP NEGERI 6 KEBUMEN Ratna Kusuma; A. A Sujadi
UNION: Jurnal Ilmiah Pendidikan Matematika Vol 3 No 1 (2015)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (541.391 KB) | DOI: 10.30738/.v3i1.271

Abstract

The objectives of this research is to discribe learning process by using constructivism learning model in order to improve the activity and achivement of Mathematics Learning in VIII G class of SMP Negreri 6 Kebumen Academic Year 2013/2014.This kind of research is classroom action which is done collaboratively between  the researcher and Math’s teacher. The result of research shows that after applying the constructivism learning model, students activity and learning achievement of mathematics is increase. Learning activity is increase from pre cycle 24, 60%, in cycle I becomes 45,31%, and in cycle II becomes 66, 59%. Learning achievement is also increase seen from average value in pre cycle amount to 61,65, in the last of test of cycle I becomes 68,91,  and becomes 76,72 in the last of cycle II test. Students percentage which obtain value (73) is increase from 43,75%  in pre cycle, in the last of cycle I test becomes 53,12%  and becomes 62,5%  in the last of cycle II. So, it’s suggested to teacher to be able to choose and apply the suitable learning model in order to create the atmosphere of exciting, condusive, effective in the classroom so they are able to increase activity and mathematics learning achievement and one of them is by using constructivism learning model.
PELATIHAN DETEKSI DINI BERDASARKAN FAKTOR RESIKO DIABETES MELITUS KADER DUKUH SONOSEWU Ganik Sakitri; Ratna Kusuma
Jurnal LINK Vol 14, No 1 (2018): MEI 2018
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (667.431 KB) | DOI: 10.31983/link.v14i1.3284

Abstract

Abstrak Diabetes mellitus yang tidak tertangani dapat menyebabkan berbagai komplikasi yang menyebabkan kerusakan berbagai sistem tubuh. Neuropati (kerusakan syaraf) pada kaki yang meningkatkan kejadian ulkus kaki serta infeksi bahkan amputasi. Kegiatan pengabdian masyarakat dengan tema deteksi dini diabetes melitus dengan sasaran kader di pedukuhan Sonosewu. Metode pengabdian masyarakat yang digunakan adalah pendidikan masyarakat dan pelatihan. Pelatihan yang diberikan adalah melakukan cek guk gula darah secara mandiri dan senam kaki diabetes mellitus. Simpulan pengabdian ini adalah peserta pelatihan mengungkapkan kepuasannya terhadap tim kerja yang memberikan pelatihan dan pendampingan prosedur pengecekan gula darah, dan pemahaman senam kaki. Kata KunciDiabetes mellitus, pelatihan, cek gula darah, senam kaki.    Early Detection Training Based on Risk FactorsDiabetes Mellitus Kader in Sonosewu Abstract Diabetes mellitus is untreated can cause various complications that cause damage to various body systems. Neuropathy (nerve damage) in the foot that increases the incidence of foot ulcers and infection and even amputation. Community service activities with the theme of early detection of diabetes mellitus with the target cadre in Sonosewu hamlet. Methods of community service used are community education and training. The training provided is to check the blood sugar cans independently and exercise the feet of diabetes mellitus. The conclusion of this dedication is that the trainees express their satisfaction with the work team providing training and mentoring of blood glucose screening procedures, and understanding of foot exercises.  Key Words:Diabetes mellitus, training, blood sugar check, foot gymnastics.  
Synthesis of Silver Nanoparticle Using Bio-Reductant from Wuluh Star Fruit (Averrhoa Bilimbi L.) Extract and Their Activity as Sunscreen Hindryawati, Noor; Muhammad Marion Akbar; Eva Marliana; Ratna Kusuma
Jurnal Bahan Alam Terbarukan Vol. 14 No. 1 (2025): June 2025 [Nationally Accredited Sinta 3]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v14i1.16552

Abstract

Synthesis of silver nanoparticles has been carried out using AgNO3 solution as precursor with wuluh star fruit extract as bioreductant and reacted under the sunlight. The synthesized silver nanoparticles were tested for its sunscreen activity. The synthesized has been done with optimation of AgNO3 precursor and bioreductant. Based on absorbances value using UV-Vis Spectrophotometer, it is shown that silver nanoparticles from 1,5 mM AgNO3 and 25% (v/v) extract are more stable than the other variation for 4 days. The characterization of silver nanoparticles using Transmission Electron Microscope (TEM) and Particle Size Analyzer (PSA) instrument result shows the morphology of rounded silver nanoparticles with diverse sizes at range 6,9 – 27,7 nm, and with average particle size of 14,8 nm. Particle Size Analyzer (PSA) instrument shows the distribution of silver nanoparticles at range under 100 nm. Sunscreen activity of silver nanoparticles shows the SPF value of 44,14 with ultra protection type and on high level. The SPF value obtained indicates that silver nanoparticles can be applied as sunscreen.  
Optimalisasi Aktivitas Fisik Lansia untuk Meningkatkan Kemandirian di Usia Senja Ratna Kusuma; Aprilia Nuryanti
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol. 6 No. 3 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v6i3.2503

Abstract

Aktifitas fisik merupakan salah satu alternatif kegiatan yang dapat dilakukan oleh lansia untuk tetap menjaga kebugaran tubuhnya. Aktifitas fisik dapat dimaknai sebagai setiap aktivitas tubuh yang bertujuan untuk meningkatkan atau mempertahankan kebugaran fisik dan kesehatan serta kebugaran secara keseluruhan. Hal ini dilakukan karena berbagai alasan termasuk memperkuat otot dan sistem kardiovaskular, mengasah keterampilan, penurunan berat badan atau pemeliharaan, serta untuk tujuan kesenangan. Tujuan kegiatan pendidikan kesehatan ini adalah mendemostrasikan senam lansia: senam ergonomik sebagai salah satu alternatif kegiatan aktivitas fisik untuk meningkatkan atau mempertahankan kemandirian di usia senja. Peserta kegiatan ini adalah 22 lansia di Posyandu Sedap Malam RT 02/02 Setabelan, Banjarsari, Surakarta yang merupakan salah satu Posyandu binaan Puskesmas Setabelan Kota Surakarta. Hasil pemeriksaan didapatkan bahwa lansia dengan klasifikasi tekanan darah tinggi lebih dari 140/90 mmHg (hipertensi) sebanyak 59,2% atau (9 lansia), lansia dengan klasifikasi kadar Gula Darah Sewaktu (GDS) normal dibawah 200 mg/dL (tidak menderita diabetes) sebanyak 86,4% atau (19 lansia) dan lansia dengan kategori mandiri rentang nilai 20 – 21 sebanyak 68,2% atau (15 lansia). Dan lansia mampu melakukan redemonstrasi senam ergonomik secara mandiri.
Co-Authors A. A Sujadi aprilia nuryanti Eva Marliana, Eva Ganik Sakitri Muhammad Marion Akbar Noor Hindryawati, Noor