Film Dokumenter Gerombolan Pemburu Batu Menggana (Mengapresiasi Tinggalan Leluhur dengan Talenta)

Gerombolan Pemburu Batu (Stone Hunters) is a community who appreciates the remains of valueson historical sites in many regions. The community uses Talents as a form of creativity to reproduce the talentsin the form of creative products. These marginal sites—locations unknown to many people—has become maininterest for impromptu visits. These visits offer the opportunity to learn cultural literacy in a fun way

Dukungan Keluarga dan Sosial dalam Pertumbuhan dan Perkembangan Personal Sosial, Bahasa dan Motorik pada Balita di Kabupaten Banyumas

Penelitian bertujuan untuk mengidentifikasi pengaruh peran keluarga dan dukungan sosial dalam proses pertumbuhan dan perkembangan Balita di Kabupaten Banyumas.Penelitian dilakukan dengan teknik pre and post test design pada satu kelompok, dan sampel diambil secara purposive (34 orangtua Balita). Lokasi penelitian di RW 3, Desa Rempoah, Baturraden, Banyumas. Tahap I, dilakukan dengan mengidentifikasi keluarga dalam melakukan stimulasi tumbuh kembang Balita, membentuk panduan stimulasi dan video stimulasi untuk Balita, melatih kader kesehatan/relawan untuk pendampingan stimulasi tumbuh kembang Balita. Tahap II, dilakukan dengan implementasi model; (1) memberikan pelatihan stimulasi tumbuh kembang Balita dengan media video dan modul, (2) demonstrasi dan pendampingan stimulasi menggunakan alat permainan edukatif, (3) implementasi dengan kunjungan rutin setiap 2 minggu sekali selama 5 bulan. Instrumen: kuesioner pra-skrining perkembangan dari Depkes, lembar observasi dan alat pengukuran antropometri (BB, PB, LILA, dan LK). Hasil penelitian adalah peran keluarga dan dukungan sosial mempengaruhi proses tumbuh kembang, uji paired t test menunjukkan model pemberdayaan berdampak terhadap pertumbuhan Balita baik pada indikator berat badan, panjang/tinggi badan, lingkar kepala, lingkar lengan (masing-masing dengan p value 0,00). Pemberdayaan keluarga terbukti mampu meningkatkan perkembangan Balita, baik pada indikator personal sosial, bahasa, motorik halus, motorik kasar (masing-masing dengan p value 0,00). Kesimpulan adalah peningkatan peran keluarga dan dukungan sosial dapat memberikan efek positif terhadap pertumbuhan dan perkembangan personal sosial, bahasa, motorik pada Balita. Identifying the effect of family role and social support in growth and development process of toddler in Distric Banyumas. Research was done by using pre and posttest design technique to a cluster, sample was taken by purposive sampling (34 parents of toddler). Research located in RW 3 Rempoah Village, Baturraden, Banyumas. Phase 1, done by identifying the families in growth stimulation toddlers, creating stimulation manual and video stimulation for toddlers, training the health cadres / volunteers in order to mentor the growth and development stimulation of toddlers. Phase II, done by model implementation; (1) giving growth stimulation training toddler with video and media modules, (2) demonstrate and stimulation mentoring using educational toys; (3) implementation with regular visits for 5 month in every 2 weeks. Instruments : pra-skrining development questionnaire from department of Health, observation paper and Anthropometric measurement tools (Body Weight, Body Length, Upper Arm Circumference, and Head Circumference). Family role and social support effect the growth and development process. The test of Pair T-test indicate empowerment model impacts in toddlers growth both in body weight, body length, upper arm circumference, head circumference (each with p value 0,00). Family empowerment proven to improve toddlers development, both in social personal indicator, language, fine and gross motor (each with p value 0,00). CONCLUSION. Family role and social support enhancement can give positive effect on personal growth and development on social, language, and motor on toddlers

Analisis dan Perancangan E-CRM pada Perusahaan Advertising

The purpose of this study was to analyze the needs and customer satisfaction in service advertising and design an attractive site customer satisfaction, user friendly and dynamic. Ways to do research using analytical method, data collection method, and design method. The collection of data and information were done through a field research. The results obtained from this research is the design of e-CRM applications (Electronic Customer Relationship Management) which aims to produce an interactive Internet-based applications for any strategy to enhance relationships with existing customers, increase new customers and increase profits from the sale. In addition, companies can thrive in providing quality service to our customers, which in turn can increase its profit. The conclusion of this research is to create a dynamic website, which is useful for providing better services to consumers, thus increasing profits for customers and companies

ANALISIS RE-ENTRY SHOCK PADA MAHASISWA SELAMA TRANSISI DARI MODEL PEMBELAJARAN ONLINE KE PEMBELAJARAN TATAP MUKA DI MASA PANDEMI COVID-19

The Indonesian Ministry of Education, Culture, Research and Technology 2021 has implemented a hybrid learning model that allows students to return to face-to-face learning. This raises concerns about re-entry shock due to the transition to face-to-face learning. This research aims to study the re-entry shock experienced by students when returning to face-to-face learning model-based affection, behaviour, and cognition. This research uses a qualitative approach with an instrumental case study method. Data were obtained from questionnaires and interviews and analysed using theoretical thematic analysis. Findings showed that students experienced re-entry shock in all three aspects. However, the main problem came from the affective and cognition aspects, where students reported a need for more confidence in communicating, insecurity, and worries about the pandemic. Educators can use the results of this study better to understand the problems of re-entry shock in students and help them overcome them

A Novel Method for 57Ni and 57Co Production using Cyclotron-Generated Secondary Neutrons

57Ni and 57Co radioisotpes are used in the synthesis of radiopharmaceuticals, for research purposes, as well as radiotherapy in nuclear medicine due to its decay characteristics. In this research, 57Ni and 57Co were produced using secondary neutrons. The secondary neutrons employed in this investigationwere generated by bombarding 11 MeV protons intoa target system consisting of HavarÒ foil as a vacuum window, aluminum foil as an energy degrader, aluminum tube as a target holder and nickel foil as a target via (p,n), (n,n) and (n,2n) nuclear reactions. The TALYS-calculated data were used to understand the origin of the secondary neutrons.  In this experiment, variable Ni target thicknesses of 75, 150 and 225 mm were irradiated with a fixed proton beam dose of 0.67 mAhr in order to study the dependence of the radioisotope yields on the target thickness. For the first time, 57Ni and 57Co radioisotopes wereproduced and observed experimentally following 58Ni(n,2n)57Ni → 57Co nuclear reaction. Experimental results indicated that for 225-mm thick Ni target, the 57Ni yield of 10.85 ± 3.29 mCi/mAhr and 57Co yield of 6.04 ± 2.45mCi/mAhr were recorded after an hour cooling period. The resulted yieldsdid not strongly depend on the target thickness. This proposed novel method is a promising method to obtain higher radioactivity yield in the production of 57Ni and 57Co radioisotopes

A Novel Method for 57Ni and 57Co Production Using Cyclotron-Generated Secondary Neutrons

57Ni and 57Co radioisotpes are used in the synthesis of radiopharmaceuticals, for research purposes, as well as radiotherapy in nuclear medicine due to its decay characteristics. In this research, 57Ni and 57Co were produced using secondary neutrons. The secondary neutrons employed in this investigationwere generated by bombarding 11 MeV protons intoa target system consisting of HavarÒ foil as a vacuum window, aluminum foil as an energy degrader, aluminum tube as a target holder and nickel foil as a target via (p,n), (n,n) and (n,2n) nuclear reactions. The TALYS-calculated data were used to understand the origin of the secondary neutrons. In this experiment, variable Ni target thicknesses of 75, 150 and 225 mm were irradiated with a fixed proton beam dose of 0.67 mAhr in order to study the dependence of the radioisotope yields on the target thickness. For the first time, 57Ni and 57Co radioisotopes wereproduced and observed experimentally following 58Ni(n,2n)57Ni → 57Co nuclear reaction. Experimental results indicated that for 225-mm thick Ni target, the 57Ni yield of 10.85 ± 3.29 mCi/mAhr and 57Co yield of 6.04 ± 2.45mCi/mAhr were recorded after an hour cooling period. The resulted yieldsdid not strongly depend on the target thickness. This proposed novel method is a promising method to obtain higher radioactivity yield in the production of 57Ni and 57Co radioisotopes

Measurement of Seawater Flow-Induced Erosion Rates for Iron Surfaces Using Thin Layer Activation Technique

The laboratory-scale erosion-corrosion testing facility at BATAN's Center for Radioisotope and Radiopharmaceutical Technology (PTRR) in Serpong was employed to simulate flow-induced corrosion of iron surfaces. Surface loss rates were measured by a nuclear technique called thin layer activation (TLA) analysis. A 10-MeV proton beam generated from a typical CS-30 cyclotron was used to produce 56Co radionuclide layers on iron surfaces via a 56Fe(p,n)56Co nuclear reaction. The labeled iron specimens were then exposed to circulating seawater simulated in BATAN's flow-induced corrosion test facility. The experimental results indicated that the TLA technique was able to measure a very low flow-induced erosion rate of 0.91±0.3 µm/hr. There was no significant difference in the measured surface loss rates between the remaining activity method and the concentration method. The iron surface loss in seawater was lower than that of the same material in HCl solution observed in earlier studies

Kadar Histamin dan Nilai Angka Lempeng Total (ALT) pada Tuna Loin Berdasarkan Jumlah Hari Penangkapan dan Ukuran Ikan di Unit Pengolahan Ikan, Surabaya

Histamin adalah senyawa yang terdapat pada daging ikan atau produk-produk ikan dari Famili Scombroidae yang karena kontribusi bakteri pembusuk menghasilkan histamin yang tinggi. Penelitian ini bertujuan untuk mengetahui nilai histamin dan ALT pada tuna loin berdasarkan hari penangkapan dan ukuran ikan di unit pengolahan ikan di Surabaya. Penelitian ini dilakukan bulan Januari 2020 sampai dengan Februari 2020 di Unit Pengolahan Ikan, dan laboratorium intern UPI Surabaya. Metoda penelitian dilakukan dengan observasilangsung pada kapal penangkap ikan dengan 5 hari penangkapan yang berbeda, dengan 5 kali ulangan. Sampel ikan disimpan pada palka kapal. Parameter uji adalah histamin dan ALT. Analisa data dilakukan dengan regresi linier, dilanjutkan dengan confidence interval. Hasil penelitian menunjukkan kadar histamin berdasarkan hari penangkapan berkisar antara 5,80 mg/100gr – 6,91mg/100gr. Nilai ALT berdasarkan hari penangkapan menunjukkan antara 6,8 x 103 kol/g - 8,7 x 103 kol/g. Ukuran ikan 20 kg–40 Up terhadap kadar histamin menunjukkan kisaran 5,46 mg/100g-7,22 mg/100g. Ukuran ikan 20 kg–40 Up terhadap nilai ALT menujukkan kisaran 4,1 x 103 kol/g- 6,1 x 103 kol/g. Hasil analisa menunjukkan kadar histamin dan nilaiALT tidak berbeda nyata (p>0.05) terhadap hari penangkapan dan ukuran ikan. Kesimpulan tidak ada pengaruh antara hari penangkapan dan ukuran ikan terhadap kenaikan kadar histamin dan ALT pada bahan baku tuna Loin

Identification and Angular Distribution of Residual Radionuclides Detected on the Wall of BATAN’s Cyclotron Cave

Detection and measurement of radiation sources around BATAN’s cyclotron facilities in Serpong are required as an early step to avoid radiation impacts on the radiation employees who work with the cyclotron. In this paper, radiation emitted from the wall of the CS-30 cyclotron cave are detected and measured using an NaI(Tl) detector coupled with a pocket multichannel analyzer (MCA) at a counting time of 30 minutes for each sampling point on the wall. The sampling points were in the directions of within ±150o with respect to the incoming proton beams, and the measurements were conducted at heights between 1.2 m and 1.8 m off the floor for every sampling point. The experimental results indicate that Co-60 and Cs-134 detected on the cyclotron cave wall are major radionuclides that contribute to the emitted gamma radiation. The distribution of the gamma ray intensities given off by Co-60 and Cs-134 depend on the angle and position of the sampling points. In general the highest gamma ray rates can be found in the area around 0o relative to the incoming proton beams. In addition, no other radioactive sources are significantly detected on the wall. The maximum exposure measured on the wall surface was much less than the permissible occupational exposure for radiation workers and general public.Received: 27 March 2015; Revised: 30 September 2015; Accepted: 15 December 2015

Measuring the Corrosion Rate of Aluminum by Using Ultra Thin Layer Activation Technique

Corrosion rate of aluminum (99.9% purity) in 0.001 M hydrochloride acid solution has been measured by using Ultra Thin Layer Activation (UTLA) technique. Iron foil of 25 μm thickness was used as the primary target and activated by 10.2 MeV proton beam coming from BATAN’s cyclotron with irradiation dose of 0.73 μAh (9.534 x 1015 protons/cm2). Radioisotope 56Co formed on the foil would have sufficient kinetic energy to run out of the foil’s surface and be implanted on the aluminum used as the secondary target. After 2 days of cooling down, about 0.397 MBq of 56Co stayed on the foil was counted by NaI(Tl) detector coupled with Multi Channel Analyzer (MCA).It was found that about 9.45% of the total 56Co formed on the iron foil was successfully implanted into aluminum target. Corrosion test of aluminum was conducted in a 2 inches diameter pipe filled with 0.001 M hydrochloride acid flowing with a rate of 80 liters/minute. The corrosion rate of the aluminum was determined from the change of 56Co activity during the process. The result of experiment indicated that the sample was corroded with a very slow rate of 0.064 nm/minute and 0.0054 nm/minute for measuring time of 0-180 and 180-300 minutes respectively