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1. Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II

Author

Agrawal, A., Alenkov, V. V., Aryal, P., Bae, H., Beyer, J., Bhandari, B., Boiko, R. S., Boonin, K., Buzanov, O., Byeon, C. R., Chanthima, N., Cheoun, M. K., Choe, J. S., Choi, S., Choudhury, S., Chung, J. S., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A. M., Gastaldo, L., Gavrilyuk, Y. M., Gezhaev, A. M., Gileva, O., Grigorieva, V. D., Gurentsov, V. I., Ha, C., Ha, D. H., Ha, E. J., Hwang, D. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, W. G., Kazalov, V. V., Kempf, S., Khan, A., Khan, S., Kim, D. Y., Kim, G. W., Kim, H. B., Kim, H. J., Kim, H. L., Kim, H. S., Kim, M. B., Kim, S. C., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuzminov, V. V., Kwon, D. H., Lee, C. H., Lee, D. Y., Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. W., Lee, Y. C., Leonard, D. S., Lim, H. S., Mailyan, B., Makarov, E. P., Nyanda, P., Oh, Y., Olsen, S. L., Panasenko, S. I., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S., Ratkevich, S. S., Rooh, G., Sari, M. B., Seo, J., Seo, K. M., Sharma, B., Shin, K. A., Shlegel, V. N., Siyeon, K., So, J., Sokur, N. V., Son, J. K., Song, J. W., Srisittipokakun, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yeon, H. J., Yoon, Y. S., and Yue, Q.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

The AMoRE collaboration searches for neutrinoless double beta decay of $^{100}$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large detector array with about 90 kg of $^{100}$Mo isotope, is under construction.This paper discusses the baseline design and characterization of the lithium molybdate cryogenic calorimeters to be used in the AMoRE-II detector modules. The results from prototype setups that incorporate new housing structures and two different crystal masses (316 g and 517 - 521 g), operated at 10 mK temperature, show energy resolutions (FWHM) of 7.55 - 8.82 keV at the 2.615 MeV $^{208}$Tl $\gamma$ line, and effective light detection of 0.79 - 0.96 keV/MeV. The simultaneous heat and light detection enables clear separation of alpha particles with a discrimination power of 12.37 - 19.50 at the energy region around $^6$Li(n, $\alpha$)$^3$H with Q-value = 4.785 MeV. Promising detector performances were demonstrated at temperatures as high as 30 mK, which relaxes the temperature constraints for operating the large AMoRE-II array.

Published
2024

2. Improved limit on neutrinoless double beta decay of $^{100}$Mo from AMoRE-I

Author

Agrawal, A., Alenkov, V. V., Aryal, P., Beyer, J., Bhandari, B., Boiko, R. S., Boonin, K., Buzanov, O., Byeon, C. R., Chanthima, N., Cheoun, M. K., Choe, J. S., Choi, Seonho, Choudhury, S., Chung, J. S., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A. M., Gastaldo, L., Gavrilyuk, Y. M., Gezhaev, A. M., Gileva, O., Grigorieva, V. D., Gurentsov, V. I., Ha, C., Ha, D. H., Ha, E. J., Hwang, D. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, W. G., Kazalov, V. V., Kempf, S., Khan, A., Khan, S., Kim, D. Y., Kim, G. W., Kim, H. B., Kim, Ho-Jong, Kim, H. J., Kim, H. L., Kim, H. S., Kim, M. B., Kim, S. C., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuzminov, V. V., Kwon, D. H., Lee, C. H., Lee, DongYeup, Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. W., Lee, Y. C., Leonard, D. S., Lim, H. S., Mailyan, B., Makarov, E. P., Nyanda, P., Oh, Y., Olsen, S. L., Panasenko, S. I., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S., Ratkevich, S. S., Rooh, G., Sari, M. B., Seo, J., Seo, K. M., Sharma, B., Shin, K. A., Shlegel, V. N., Siyeon, K., So, J., Sokur, N. V., Son, J. K., Song, J. W., Srisittipokakun, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yeon, H. J., Yoon, Y. S., and Yue, Q.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

AMoRE searches for the signature of neutrinoless double beta decay of $^{100}$Mo with a 100 kg sample of enriched $^{100}$Mo. Scintillating molybdate crystals coupled with a metallic magnetic calorimeter operate at milli-Kelvin temperatures to measure the energy of electrons emitted in the decay. As a demonstration of the full-scale AMoRE, we conducted AMoRE-I, a pre-experiment with 18 molybdate crystals, at the Yangyang Underground Laboratory for over two years. The exposure was 8.02 kg$\cdot$year (or 3.89 kg$_{\mathrm{^{100}Mo}}\cdot$year) and the total background rate near the Q-value was 0.025 $\pm$ 0.002 counts/keV/kg/year. We observed no indication of $0\nu\beta\beta$ decay and report a new lower limit of the half-life of $^{100}$Mo $0\nu\beta\beta$ decay as $ T^{0\nu}_{1/2}>3.0\times10^{24}~\mathrm{years}$ at 90\% confidence level. The effective Majorana mass limit range is $m_{\beta\beta}<$(210--610) meV using nuclear matrix elements estimated in the framework of different models, including the recent shell model calculations., Comment: 8 pages, 5 figures

Published
2024

3. Projected background and sensitivity of AMoRE-II

Author

Agrawal, A., Alenkov, V. V., Aryal, P., Beyer, J., Bhandari, B., Boiko, R. S., Boonin, K., Buzanov, O., Byeon, C. R., Chanthima, N., Cheoun, M. K., Choe, J. S., Choi, Seonho, Choudhury, S., Chung, J. S., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A. M., Gastaldo, L., Gavrilyuk, Y. M., Gezhaev, A. M., Gileva, O., Grigorieva, V. D., Gurentsov, V. I., Ha, C., Ha, D. H., Ha, E. J., Hwnag, D. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, W. G., Kazalov, V. V., Kempf, S., Khan, A., Khan, S., Kim, D. Y., Kim, G. W., Kim, H. B., Kim, Ho-Jong, Kim, H. J., Kim, H. L., Kim, H. S., Kim, M. B., Kim, S. C., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kuzminov, V. Kornoukhov V. V., Kwon, D. H., Lee, C. H., Lee, D. Y., Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. W., Lee, Y. C., Leonard, D. S., Lim, H. S., Mailyan, B., Makarov, E. P., Nyanda, P., Oh, Y., Olsen, S. L., Panasenko, S. I., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S., Rooh, S. S. Ratkevich G., Sari, M. B., Seo, J., Seo, K. M., Sharma, B., Shin, K. A., Shlegel, V. N., Siyeon, K., So, J., Sokur, N. V., Son, J. K., Song, J. W., Srisittipokakun, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yeon, H. J., Yoon, Y. S., and Yue, Q.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

AMoRE-II aims to search for neutrinoless double beta decay with an array of 423 Li$_2$$^{100}$MoO$_4$ crystals operating in the cryogenic system as the main phase of the Advanced Molybdenum-based Rare process Experiment (AMoRE). AMoRE has been planned to operate in three phases: AMoRE-pilot, AMoRE-I, and AMoRE-II. AMoRE-II is currently being installed at the Yemi Underground Laboratory, located approximately 1000 meters deep in Jeongseon, Korea. The goal of AMoRE-II is to reach up to $T^{0\nu\beta\beta}_{1/2}$ $\sim$ 6 $\times$ 10$^{26}$ years, corresponding to an effective Majorana mass of 15 - 29 meV, covering all the inverted mass hierarchy regions. To achieve this, the background level of the experimental configurations and possible background sources of gamma and beta events should be well understood. We have intensively performed Monte Carlo simulations using the GEANT4 toolkit in all the experimental configurations with potential sources. We report the estimated background level that meets the 10$^{-4}$counts/(keV$\cdot$kg$\cdot$yr) requirement for AMoRE-II in the region of interest (ROI) and show the projected half-life sensitivity based on the simulation study.

Published
2024

4. Background study of the AMoRE-pilot experiment

Author

Agrawal, A., Alenkov, V. V., Aryal, P., Beyer, J., Bhandari, B., Boiko, R. S., Boonin, K., Buzanov, O., Byeon, C. R., Chanthima, N., Cheoun, M. K., Choe, J. S., Choi, Seonho, Choudhury, S., Chung, J. S., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A. M., Gastaldo, L., Gavrilyuk, Yu. M., Gezhaev, A. M., Gileva, O., Grigorieva, V. D., Gurentsov, V. I., Ha, C., Ha, D. H., Ha, E. J., Hwang, D. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, W. G., Kazalov, V. V., Kempf, S., Khan, A., Khan, S., Kim, D. Y., Kim, G. W., Kim, H. B., Kim, Ho-Jong, Kim, H. J., Kim, H. L., Kim, H. S., Kim, M. B., Kim, S. C., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuzminov, V. V., Kwon, D. H., Lee, C. H., Lee, DongYeup, Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. W., Lee, Y. C., Leonard, D. S., Lim, H. S., Mailyan, B., Makarov, E. P., Nyanda, P., Oh, Y., Olsen, S. L., Panasenko, S. I., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S., Ratkevich, S. S., Rooh, G., Sari, M. B., Seo, J., Seo, K. M., Sharma, B., Shin, K. A., Shlegel, V. N., Siyeon, K., So, J., Sokur, N. V., Son, J. K., Song, J. W., Srisittipokakun, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yeon, H. J., Yoon, Y. S., and Yue, Q.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

We report a study on the background of the Advanced Molybdenum-Based Rare process Experiment (AMoRE), a search for neutrinoless double beta decay (\znbb) of $^{100}$Mo. The pilot stage of the experiment was conducted using $\sim$1.9 kg of \CAMOO~ crystals at the Yangyang Underground Laboratory, South Korea, from 2015 to 2018. We compared the measured $\beta/\gamma$ energy spectra in three experimental configurations with the results of Monte Carlo simulations and identified the background sources in each configuration. We replaced several detector components and enhanced the neutron shielding to lower the background level between configurations. A limit on the half-life of $0\nu\beta\beta$ decay of $^{100}$Mo was found at $T_{1/2}^{0\nu} \ge 3.0\times 10^{23}$ years at 90\% confidence level, based on the measured background and its modeling. Further reduction of the background rate in the AMoRE-I and AMoRE-II are discussed.

Published
2024

9. Pelatihan dan Pendampingan Pembuatan Abon Prodak Ikan Marlin Khas Boneoge di Kelurahan Boneoge

Author

Wendy Muhammad Fadlhi, Ahmil Ahmil, Agnes Marshela Rumagit, Anisa Suraya, Velisya Velisya, Nilan Sari M. Haris, Agung Viliano, Hijrah Mil Husnah Idrus, Nurul Aulianisa, and Galang Safari Yahya

Subjects
Pelatihan, Pendampingan, Abon ikan, PPK Ormawa, Boneoge, Human settlements. Communities, HT51-65
Abstract

Kelurahan Boneoge memiliki potensi sumber daya alam yang berasal dari laut seperti hasil tangkap berbagai jenis ikan. Tujuan dari pelaksanaan program Peningkatan kemahasiswaan (PPK Ormawa) Forum mahasiswa KIP-Kuliah Universitas Widya Nusantara adalah Meningkatkan Keterampilan terkait pembuatan Abon ikan Marlin khas boneoge untuk Meningkatkan perekonomian masyarakat di Kelurahan Boneoge metode pendekatan yang dapat membantu menyelesaikan masalah yaitu dengan metode, pelatihan/penyuluhan dan Pendampingan Pembuatan Abon ikan marlin. Hasil Dari Kegiatan Peserta pelatihan yaitu ibu-ibu pkk dan tokoh masyarakat termotivasi untuk mendirikan unit usaha mengolah ikan marlin menjadi abon ikan marlin berbagai rasa. Program pelaksanaan Pembuatan Abon Ikan Marlin Khas Boneoge ini berhasil dilaksanakan dalam mengembangkan potensi Kelurahan Boneoge pada bidang perikanan.

Published
2024
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11. Status and performance of the AMoRE-I experiment on neutrinoless double beta decay

Author

Kim, H. B., Ha, D. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kang, C. S., Kang, W. G., Kim, H. S., Kim, S. C., Kim, S. G., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kwon, D. H., Lee, E. S., Lee, H. J., Lee, H. S., Lee, J. S., Lee, M. H., Lee, S. W., Lee, Y. C., Leonard, D. S., Lim, H. S., Mailyan, B., Nyanda, P. B., Oh, Y. M., Sari, M. B., Seo, J. W., Seo, K. M., Seo, S. H., So, J. H., Woo, K. R., and Yoon, Y. S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

AMoRE is an international project to search for the neutrinoless double beta decay of $^{100}$Mo using a detection technology consisting of magnetic microcalorimeters (MMCs) and molybdenum-based scintillating crystals. Data collection has begun for the current AMORE-I phase of the project, an upgrade from the previous pilot phase. AMoRE-I employs thirteen $^\mathrm{48depl.}$Ca$^{100}$MoO$_4$ crystals and five Li$_2$$^{100}$MoO$_4$ crystals for a total crystal mass of 6.2 kg. Each detector module contains a scintillating crystal with two MMC channels for heat and light detection. We report the present status of the experiment and the performance of the detector modules., Comment: 8 pages, 4 figures, published in Journal of Low Temperature Physics (2022)

Published
2022
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12. Pendamping PKK Desa Pakuli dalam Menjaga Biodiversitas Tumbuhan Obat di Pekarangan Rumah Warga Desa Pakuli

Author

Wendi Muhammad Fadhli, Maharani Farah Dhifa Dg. Masikki, Agnes Marshela Rumaggit, Nur Aini, Iin Alizzah Adam Lawi, Sinta Pratiwi, Nurfadhillah Nurfadhillah, Wulan Antarik Ragi, Indah Sari Masdin, Nilan Sari M. Haris, Endra Eka Putri Wayo, Miranti Bulia, Hijrah Milhusnah Idrus, Faradibba Faradibba, Fajar Aditya, and Moh Dandi

Subjects
Toga, Biodiversitas, Pendampingan, Human settlements. Communities, HT51-65
Abstract

Desa Pakuli merupakan salah satu desa yang terletak di Kecamatan Gumbasa, Kabupaten Sigi, Provinsi Sulawesi Tengah. Desa Pakuli memiliki potensi tumbuhan obat kelurga yang sangat banyak jenisnya, asli tumbuhan obat yang hidup di Desa Pakuli. Hasil pengamatan yamg kami lakukan, perlunya dilakukan pendampingan kepada ibu-ibu PKK dalam menjaga biodiversitas tumbuhan obat keluarga, karena potensi tumbuhan obat keluarga di Desa Pakuli variasinya banyak tetapi terabaikan. Kegiatan pengabdian masyarakat ini, yaitu pendampingan dengan tujuan untuk membantu masyarakat merancang program menjaga biodiversitas tanaman obat dipekarangan rumah. Hal ini dilakukan dengan pendampingan ibu-ibu PKK dengan jumlah 25 orang di 5 halaman pekarangan rumah warga. 1 Kelompok terdiri 5 orang dengan 10 tanaman obat kelurga yang ditanam. Manfaatnya masyarakat ikut serta dalam menjaga biodiversitas tumbuhan obat keluarga. Metode pendampingan secara langsung dengan membentuk kelompok, menentukan konsep taman toga, menyiapkan bahan dan alat, penanaman hingga perawatan. Kesimpulan dari kegiatan pendampingan ini, bahwa keterlibatan ibu-ibu pkk sebanyak 25 orang aktif dalam kegiatan dan merawat tumbuhan obat keluarga di pekarangan rumah. Kegiatan Pengabdian ini diharapkan mampu menjadi solusi dan meberikan dampak positif serta, terbentuknya kesadaran dari ibu-ibu pkk untuk mengenal dan mempertahankan biodiversitas dari tumbuhan obat keluarga dari Desa Pakuli. Kontribusi pengabdian masyarakat ini adalah memberikan pendampingan dan dukungan teknis yang berkelanjutan kepada masyarakat agar mereka dapat menjaga biodiversitas tumbuhan obat keluarga dan berhasil dalam membudidayakan tumbuhan obat keluarga secara luas, sehingga akan menciptakan dampak yang baik dalam lingkungan mereka.

Published
2024
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16. Alpha backgrounds in the AMoRE-Pilot experiment

Author

Alenkov, V., Bae, H. W., Beyer, J., Boiko, R. S., Boonin, K., Buzanov, O., Chanthima, N., Cheoun, M. K., Choi, S. H., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A., Gastaldo, L., Gavriljuk, Yu. M., Gezhaev, A., Grigoryeva, V. D., Gurentsov, V., Ha, D. H., Ha, C., Ha, E. J., Hahn, I., Jeon, E. J., Jeon, J., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, S. J., Kang, W. G., Karki, S., Kazalov, V., Khan, A., Khan, S., Kim, D. -Y., Kim, G. W., Kim, H. B., Kim, H. J., Kim, H. L., Kim, H. S., Kim, I., Kim, W. T., Kim, S., Kim, S. C., Kim, S. K., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuzminov, V., Kwon, D. H., Lee, C., Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. S., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. H., Lee, S. W., Leonard, D. S., Li, J., Li, Y., Limkitjaroenporn, P., Mailyan, B., Makarov, E. P., Oh, S. Y., Oh, Y. M., Gileva, O., Olsen, S., Pabitra, A., Panasenko, S., Pandey, I., Park, C. W., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S. J., Ratkevich, S., Rooh, G., Sari, M. B., Seo, J., Seo, K. M., Shin, J. W., Shin, K. A., Shlegel, V. N., Siyeon, K., Sokur, N. V., Son, J. -K., Srisittipokakun, N., Toibaev, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yoon, Y. S., and Yue, Q.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Advanced Mo-based Rare process Experiment (AMoRE)-Pilot experiment is an initial phase of the AMoRE search for neutrinoless double beta decay of $^{100}$Mo, with the purpose of investigating the level and sources of backgrounds. Searches for neutrinoless double beta decay generally require ultimately low backgrounds. Surface $\alpha$ decays on the crystals themselves or nearby materials can deposit a continuum of energies that can be as high as the $Q$-value of the decay itself and may fall in the region of interest (ROI). To understand these background events, we studied backgrounds from radioactive contaminations internal to and on the surface of the crystals or nearby materials with Geant4-based Monte Carlo simulations. In this study, we report on the measured $\alpha$ energy spectra fitted with the corresponding simulated spectra for six crystal detectors, where sources of background contributions could be identified through high energy $\alpha$ peaks and continuum parts in the energy spectrum for both internal and surface contaminations. We determine the low-energy contributions from internal and surface $\alpha$ contaminations by extrapolating from the $\alpha$ background fitting model.

Published
2021
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17. The Development of Blockchain Based Knowledge Management System Model at EPC Projects to Improve Project Time Performance

Author

Priyambodo, D. Y., Berawi, M. A., Sari, M., di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Kristiawan, Stefanus Adi, editor, Gan, Buntara S., editor, Shahin, Mohamed, editor, and Sharma, Akanshu, editor

Published
2023
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18. A Review on Application of Machine Learning in Building Performance Prediction

Author

Triadji, R. W., Berawi, M. A., Sari, M., di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Kristiawan, Stefanus Adi, editor, Gan, Buntara S., editor, Shahin, Mohamed, editor, and Sharma, Akanshu, editor

Published
2023
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20. RISK ANALYSIS OF CATFISH CULTIVATION PRODUCTION IN KEDIRI REGENCY, INDONESIA

Author

Sari M., Susilo E., Supriyadi S., Ramadhani A.W., Abdillah K.I., and Asshovani C.

Subjects
coefficient of variation, production risk, risk map, sources of risk, Agriculture (General), S1-972
Abstract

Cultivators who manage catfish farming businesses must consider the possibility of low production yields caused by both external and internal variables. The risks that catfish farmers confront may be to blame for the low output. The aims of this study were to determine the source of production risk and the level of risk correlated with catfish production. The method of determining the area of study is carried out intentionally (purposively). This research method is a descriptive and analytical method. The snowball sampling approach was used with a sample of 40 respondents. The data used is a combination of sources both primary and secondary. The analysis used includes variance, standard deviation, coefficient of variation, and risk level based on the risk map. Pests and diseases, weather and climate, the quality of catfish seeds, water quality, cannibalism, and human resources or cultivators who carried out the catfish cultivation process are all factors of production risk in Kediri Regency. The level of risk of catfish production is high, based on the variance value of 21.03, standard deviation of 4.59, and coefficient of variation of 1.61, while the production risk map reveals that the production risk faced by farmers is in the yellow zone, therefore it is included in the high-risk category.

Published
2023
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21. Desire for Body Contouring Surgery after Bariatric Surgery: A Nationwide Cross-sectional Study in Saudi Arabia

Author

Sari M. Rabah, MBBS, FRCSC, Razan A. Albrahim, MBBS, Ebtesam H. Almajed, MBBS, Alya K. AlZabin, MBBS, Reema A. Aldawish, MBBS, Lara S. Alyahiwi, MBBS, and Rand A. Alshabnan, MBBS

Subjects
Surgery, RD1-811
Abstract

Background:. The obesity pandemic in Saudi Arabia has led to a high demand for bariatric surgery (BS). Post-BS patients experience rapid and massive weight loss, with most patients experiencing redundant skin, leading to a desire for body contouring surgery (BCS). Methods:. A cross-sectional study was conducted from September 2022 to May 2023 among patients who underwent BS in Saudi Arabia, using an online self-administered questionnaire. The questionnaire comprised sociodemographic data, weight, and BS-related questions, and the post-BS appearance questionnaire assessed the desire for BCS, excess skin satisfaction, and overall appearance. Results:. A total of 410 of the patients electively enrolled. The mean perceived satisfaction of post-BS patients with the body’s excess skin was rated as 4.28 ± 1.69 out of 7 points. The overall desire for BCS among the post-BS population was equal to a collective mean desire of 2.10 ± 0.92 out of 4 points. The desired body sites for BCS were focused on the abdomen/waist, followed by the lower back, then upper arms, buttocks, and thighs. Only 25.1% of the patients fulfilled their desires and recently underwent BCS. Conclusions:. The study highlights the importance of incorporating plastic and reconstructive surgery as an integral part of the multidisciplinary approach to morbidly obese patients after BS and the need for national guidelines on the referral pathway for post-BS BCS.

Published
2023
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22. 'Showmance': Is performing intimacy associated with feelings of intimacy?

Author

Saslove, Jennifer, Gormezano, Aki M., Schudson, Zach C., and van Anders, Sari M.

Subjects
Actors -- Surveys -- Reports, Actresses -- Surveys -- Reports, Psychology and mental health
Abstract

Many actors report, anecdotally, a phenomenon known as a 'showmance,' whereby actors develop romantic and/or sexual feelings for acting partners, often in the process of portraying romance onstage together. Because [...]

Published
2022
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24. First Results from the AMoRE-Pilot neutrinoless double beta decay experiment

Author

Alenkov, V., Bae, H. W., Beyer, J., Boiko, R. S., Boonin, K., Buzanov, O., Chanthima, N., Cheoun, M. K., Chernyak, D. M., Choe, J. S., Choi, S., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A. M., Gastaldo, L., Gavriljuk, Yu. M., Gezhaev, A. M., Grigoryeva, V. D., Gurentsov, V. I., Gylova, O., Ha, C., Ha, D. H., Ha, E. J., Hahn, I. S., Jang, C. H., Jeon, E. J., Jeon, J. A., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, S. J., Kang, W. G., Kazalov, V. V., Khan, A., Khan, S., Kim, D. Y., Kim, G. W., Kim, H. B., Kim, H. J., Kim, H. L., Kim, H. S., Kim, I., Kim, S. C., Kim, S. G., Kim, S. K., Kim, S. R., Kim, W. T., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuzminov, V. V., Kwon, D. H., Lee, C., Lee, E. K., Lee, H. J., Lee, H. S., Lee, J. S., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. W., Lee, S. H., Leonard, D., Li, J., Li, Y., Limkitjaroenporn, P., Makarov, E. P., Oh, S. Y., Oh, Y. M., Olsen, S. L., Pabitra, A., Panasenko, S. I., Pandey, I., Park, C. W., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Poda, D. V., Polischuk, O. G., Prihtiadi, H., Ra, S. J., Ratkevich, S. S., Rooh, G., Sari, M. B., Seo, K. M., Shin, J. W., Shin, K. A., Shlegel, V. N., Siyeon, K., So, J. H., Son, J. K., Srisittipokakun, N., Sujita, K., Tretyak, V. I., Wirawan, R., Woo, K. R., Yoon, Y. S., Yue, Q., and Zaman, S. U.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The Advanced Molybdenum-based Rare process Experiment (AMoRE) aims to search for neutrinoless double beta decay (0$\nu\beta\beta$) of $^{100}$Mo with $\sim$100 kg of $^{100}$Mo-enriched molybdenum embedded in cryogenic detectors with a dual heat and light readout. At the current, pilot stage of the AMoRE project we employ six calcium molybdate crystals with a total mass of 1.9 kg, produced from $^{48}$Ca-depleted calcium and $^{100}$Mo-enriched molybdenum ($^{48\textrm{depl}}$Ca$^{100}$MoO$_4$). The simultaneous detection of heat(phonon) and scintillation (photon) signals is realized with high resolution metallic magnetic calorimeter sensors that operate at milli-Kelvin temperatures. This stage of the project is carried out in the Yangyang underground laboratory at a depth of 700 m. We report first results from the AMoRE-Pilot $0\nu\beta\beta$ search with a 111 kg$\cdot$d live exposure of $^{48\textrm{depl}}$Ca$^{100}$MoO$_4$ crystals. No evidence for $0\nu\beta\beta$ decay of $^{100}$Mo is found, and a upper limit is set for the half-life of 0$\nu\beta\beta$ of $^{100}$Mo of $T^{0\nu}_{1/2} > 9.5\times10^{22}$ y at 90% C.L.. This limit corresponds to an effective Majorana neutrino mass limit in the range $\langle m_{\beta\beta}\rangle\le(1.2-2.1)$ eV.

Published
2019
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25. The prevalence of gastrointestinal symptoms and cobalamin deficiency in patients with chronic urticaria

Author

Armin Abadeh, Sari M. Herman, and Rupert Abdalian

Subjects
Urticaria, CSU, Gastrointestinal symptoms, Cobalamin deficiency, Vitamin B12, Immunologic diseases. Allergy, RC581-607
Abstract

Abstract Background There is a paucity of studies reporting the presence of systemic symptoms and micronutrient deficiency in patients with chronic urticaria, and these data are lacking in a Canadian population. Objective To report the prevalence of gastrointestinal symptoms and vitamin B12 (cobalamin) deficiency in a Canadian patient population diagnosed with chronic urticaria. Methods A retrospective chart review of 100 adult patients with chronic urticaria was conducted. Demographic characteristics, medications, presence of gastrointestinal symptoms, and laboratory findings were abstracted from electronic medical records. Results Seventy percent of patients with chronic urticaria reported experiencing gastrointestinal symptoms. The most common symptom identified was gastroesophageal reflux (42%). Vitamin B12 (cobalamin) deficiency, defined as serum vitamin B12 level ≤ 250 pmol/L, was identified in 31.7% of the patients. Among those patients with urticaria and vitamin B12, 68% reported gastrointestinal symptoms. Conclusions This is the first study to provide data on the high prevalence of gastrointestinal symptoms and vitamin B12 (cobalamin) deficiency in a Canadian population diagnosed with chronic urticaria. Early recognition and management of systemic symptoms and micronutrient deficiency may lead to a more comprehensive approach to management of these patients. Trial registration Not applicable

Published
2023
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26. Accuracy of the SRK/T Formula in Pediatric Cataract Surgery

Author

Irfani I, Wahyu T, Oktarima P, Caesarya S, Sari M, and Karfiati F

Subjects
absolute prediction error, srk/t formula, pediatric cataract, Ophthalmology, RE1-994
Abstract

Irawati Irfani,1,2 Tri Wahyu,1 Primawita Oktarima,1,2 Sesy Caesarya,1,2 Maya Sari,1,2 Feti Karfiati1,2 1Department of Ophthalmology, Faculty of Medicine Universitas Padjadjaran, Bandung, West Java, Indonesia; 2Pediatric Ophthalmology & Strabismus Division, Cicendo National Eye Hospital, Bandung, West Java, IndonesiaCorrespondence: Irawati Irfani, Email irawati.irfani@unpad.ac.idPurpose: Determining IOL power is an important step in achieving the desired postoperative refractive target, but this determination remains challenging, as currently the used formulas were developed using IOL power calculations derived from adults.Patients and Methods: This is a retrospective analytical study with the period of June 2018 to May 2019. All of the data were taken from medical records in referral tertiary eye hospital in Indonesia. All type of cataracts underwent uncomplicated surgeries and in-the-bag IOL implantation were included in this study, while aphakia, secondary IOL implantation, primary sulcus implantation, and history of ocular disorders were excluded. The data were analyzed using Wilcoxon sign-rank, paired t, and Kruskal–Wallis tests.Results: Sixty-seven patients (106 eyes) were found to meet the inclusion criteria, average age was 7.35 ± 4.61 years (1.00 to 17.00 years). Average targeted refraction was 1.69 ± 2.06 D (− 0.38–+6.99 D), and spherical equivalent (actual postoperative refraction) was − 0.90 ± 1.45 D (− 4.38 to +2.75 D). There was statistically significant difference between preoperative targeted refraction and actual postoperative refraction (p < 0.001). Mean absolute prediction error (APE) in general was 1.34 ± 1.18 D, 1.22 ± 0.88 D (in short eyes), 1.52 ± 1.37 D (in moderate eyes), and 0.69 ± 0.52 D (in long eyes) (p = 0.202). Mean APE in age group < 7 years old was 1.27 ± 1.18 D and ≥ 7 years-old was 1.42 ± 1.19 D (p = 0.429).Conclusion: SRK/T formula is fairly accurate in calculating IOL power in pediatric cataract surgery. Mean APE in this study was within the range of accurate mean APE in pediatric patients despite differentiated axial length and age.Keywords: absolute prediction error, SRK/T formula, pediatric cataract

Published
2023

28. Radioassay of the materials for AMoRE-II experiment

Author

Agrawal, A., primary, Alenkov, V. V., additional, Aryal, P., additional, Bae, H., additional, Beyer, J., additional, Bhandari, B., additional, Boiko, R. S., additional, Boonin, K., additional, Buzanov, O., additional, Byeon, C. R., additional, Chanthima, N., additional, Cheoun, M. K., additional, Choe, J. S., additional, Choi, S., additional, Choudhury, S., additional, Chung, J. S., additional, Danevich, F. A., additional, Djamal, M., additional, Drung, D., additional, Enss, C., additional, Fleischmann, A., additional, Gangapshev, A. M., additional, Gastaldo, L., additional, Gavrilyuk, Y. M., additional, Gezhaev, A. M., additional, Gileva, O., additional, Grigorieva, V. D., additional, Gurentsov, V. I., additional, Ha, C., additional, Ha, D. H., additional, Ha, E. J., additional, Hwang, D. H., additional, Jeon, E. J., additional, Jeon, J. A., additional, Jo, H. S., additional, Kaewkhao, J., additional, Kang, C. S., additional, Kang, W. G., additional, Kazalov, V. V., additional, Kempf, S., additional, Khan, A., additional, Khan, S., additional, Kim, D. Y., additional, Kim, G. W., additional, Kim, H. B., additional, Kim, H. J., additional, Kim, H. L., additional, Kim, H. S., additional, Kim, M. B., additional, Kim, S. C., additional, Kim, S. K., additional, Kim, S. R., additional, Kim, W. T., additional, Kim, Y. D., additional, Kim, Y. H., additional, Kirdsiri, K., additional, Ko, Y. J., additional, Kobychev, V. V., additional, Kornoukhov, V., additional, Kuzminov, V. V., additional, Kwon, D. H., additional, Lee, C. H., additional, Lee, D. Y., additional, Lee, E. K., additional, Lee, H. J., additional, Lee, H. S., additional, Lee, J., additional, Lee, J. Y., additional, Lee, K. B., additional, Lee, M. H., additional, Lee, M. K., additional, Lee, S. W., additional, Lee, Y. C., additional, Leonard, D. S., additional, Lim, H. S., additional, Mailyan, B., additional, Makarov, E. P., additional, Nyanda, P., additional, Oh, Y., additional, Olsen, S. L., additional, Panasenko, S. I., additional, Park, H. K., additional, Park, H. S., additional, Park, K. S., additional, Park, S. Y., additional, Polischuk, O. G., additional, Prihtiadi, H., additional, Ra, S., additional, Ratkevich, S. S., additional, Rooh, G., additional, Sari, M. B., additional, Seo, J., additional, Seo, K. M., additional, Sharma, B., additional, Shin, K. A., additional, Shlegel, V. N., additional, Siyeon, K., additional, So, J., additional, Sokur, N. V., additional, Son, J. K., additional, Song, J. W., additional, Srisittipokakun, N., additional, Tretyak, V. I., additional, Wirawan, R., additional, Woo, K. R., additional, Yeon, H. J., additional, Yoon, Y. S., additional, and Yue, Q., additional

Published
2024
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30. Alpha backgrounds in the AMoRE-Pilot experiment

Author

Alenkov, V., Bae, H. W., Beyer, J., Boiko, R. S., Boonin, K., Buzanov, O., Chanthima, N., Cheoun, M. K., Choi, S. H., Danevich, F. A., Djamal, M., Drung, D., Enss, C., Fleischmann, A., Gangapshev, A., Gastaldo, L., Gavriljuk, Yu. M., Gezhaev, A., Grigoryeva, V. D., Gurentsov, V., Ha, D. H., Ha, C., Ha, E. J., Hahn, I., Jeon, E. J., Jeon, J., Jo, H. S., Kaewkhao, J., Kang, C. S., Kang, S. J., Kang, W. G., Karki, S., Kazalov, V., Khan, A., Khan, S., Kim, D.-Y., Kim, G. W., Kim, H. B., Kim, H. J., Kim, H. L., Kim, H. S., Kim, I., Kim, W. T., Kim, S. R., Kim, S. C., Kim, S. K., Kim, Y. D., Kim, Y. H., Kirdsiri, K., Ko, Y. J., Kobychev, V. V., Kornoukhov, V., Kuz’minov, V., Kwon, D. H., Lee, C., Lee, E. K., Lee, H. J., Lee, H. S., Lee, J., Lee, J. S., Lee, J. Y., Lee, K. B., Lee, M. H., Lee, M. K., Lee, S. H., Lee, S. W., Lee, S. W., Leonard, D. S., Li, J., Li, Y., Limkitjaroenporn, P., Mailyan, B., Makarov, E. P., Oh, S. Y., Oh, Y. M., Gileva, O., Olsen, S., Pabitra, A., Panasenko, S., Pandey, I., Park, C. W., Park, H. K., Park, H. S., Park, K. S., Park, S. Y., Polischuk, O. G., Prihtiadi, H., Ra, S. J., Ratkevich, S., Rooh, G., Sari, M. B., Seo, J., Seo, K. M., Shin, J. W., Shin, K. A., Shlegel, V. N., Siyeon, K., Sokur, N. V., Son, J.-K., Srisittipokakun, N., Toibaev, N., Tretyak, V. I., Wirawan, R., Woo, K. R., Yoon, Y. S., and Yue, Q.

Published
2022
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38. THE IMPACT OF FINANCIAL CAPITAL AND SOCIAL CAPITAL ON TECHNICAL EFFICIENCY OF CAPTURE FISHERIES IN EAST JAVA OF INDONESIA

Author

Efani A., Sari M., and Farizi W.A.

Subjects
technical efficiency, dea, tobit regression, financial capital, social capital, Agriculture (General), S1-972
Abstract

This study aims to estimate the impact of financial and social capital on capture fisheries activity. This study was conducted in Malang Regency, East Java of Indonesia. The data was collected from 100 fishermen using face to face interview and structured questionnaire. Furthermore, the data was analysis by data Envelopment analysis (DEA) to estimate the technical efficiency of fishermen, and tobit regression to estimate the effect of financial and social capital on the technical efficiency level. The DEA indicated that fishermen's technical efficiency remain low, the average value is about 0.652. In addition, the Tobit regression show fishermen's ethnic, and infestation was positively and significantly affected the fishermen technical efficiency level.

Published
2022
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39. ANALYSIS OF ECONOMIC MODEL OF TERASAK FISHERMAN’S HOUSEHOLD AT MADURA STRAIT

Author

Primyastanto M., Supriyadi S., Sari M., Intyas C.A., and Abdillah K.I.

Subjects
gillnet, fishermen terasak, household economics, madura strait, Agriculture (General), S1-972
Abstract

In dry season, the income level of fishermen is very minimal and they often do not get any catches at all. In periods of low income, fishermen's wives and children usually have to fight hard to earn money by doing all the work that brings income. The purpose of this research is to analyze Household Economic Model of Fishermen Terasak at Madura Strait. Samples were taken comprised of two groups, namely fishhook skipper and gillnet fishermen. Several samples were taken from each group. Respondents were determined by "purposive sampling" method. Researchers took 31 families of small-scale terasak fisherman at Madura Strait. Data analysis used qualitative and quantitative descriptive (regression analysis). Whereas qualitative descriptive analysis was used to analyze and compare factors that are affecting fishermen family economy. Research results showed Household Economic Model of Madura Strait Terasak Fishermen that the production value or fishing income of Madura Strait fishermen is strongly influenced by Production Assets, Fuel, Working time and Education Level. The working time fishermen's family’s level is influenced by production assets, the number of fisherman members and non-fisheries working time. The level of non-fisheries income is strongly influenced by non-fishing business assets, non-fisheres working time, number of family members. The level of expenditure of Madura Strait fishermen is influenced by fishing income, non-fisheries income, number of family members and education of fishermen's wives. Spending levels for Madura Strait fishermen were affected by fishing income, non-fishing income, family size, and the fisherman's wife's education. Variables in fishing working time and education are not significant relate to fishing production. The non-fisheries working time variable is not significant to non-fisheries income. Variables in the production assets, number of fishermen's families, and non-fisheries working time are not significant to the fishing working time The variables of total household income, number of family members, and education of fishermen's wives are not significant to the total of staple consumption.

Published
2021
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40. Effectiveness of the Superiorly Based Pharyngeal Flap in Treating Velopharyngeal Insufficiency

Author

Sari M. Rabah, FRCSC, Fahad Saeed Alkahtani, MBBS, Abdulaziz Jarman, FRCSC, Latifa Aljohar, SLP, BCaBA, Alanood Alhargan, MBBS, and Ali Abdulaziz Almalaq, FRCSC

Subjects
Surgery, RD1-811
Abstract

Background:. Velopharyngeal insufficiency (VPI) is a condition characterized by failure of the posterior part of the soft palate to reach the pharyngeal wall and separate the nasopharynx from the oropharynx during speech and swallowing. VPI may persist following cleft palate repair. This study aimed to determine the outcomes of the superiorly based pharyngeal flap to treat VPI post cleft palate repair. Methods:. A retrospective cohort study included patients with VPI post cleft palate repair who underwent secondary speech surgery. The criteria were based on clinical symptoms, physical examination, nasometry, and videofluoroscopy/nasoendoscopy findings. Data were analyzed by using SPSS program, version 22.0. A P value less than 0.05 was considered significant. Results:. Thirty-five patients were identified. VPI was reduced to 14.3% postoperatively. Before the surgery 25.7% of the patients had severe hypernasality, 68.6% had moderate hypernasality, and 5.7% had mild hypernasality. After the surgery, only 8.6% of the patients still had severe hypernasality, 22.9% had moderate hypernasality, 57.1% had mild hypernasality, and hypernasality became absent in 11.4%. Articulation disorders were present in 91.4% of patients before surgery, and decreased to 71.4% postoperatively. Speech intelligibility improved postoperatively in comparison with preoperative findings. Conclusion:. The present study concluded that the superiorly based pharyngeal flap was successful in treating VPI that persisted post cleft palate repair.

Published
2022
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43. The Role of Internal Control System on Characteristics of Village Financial Reports

Author

Ratna Sari, M. Muslim

Subjects
village financial system, capacity of the village apparatus, internal control, characteristics of village financial reports inflation., Accounting. Bookkeeping, HF5601-5689, Finance, HG1-9999
Abstract

This study aimed to examine and analyze the effect of the Village Financial System, the Capacity of the village apparatus, and the internal control system has a significant positive effect on village financial reports inflation characteristics. In addition, it was also meant to test and analyze the influence of the internal control system as a moderating relationship between the Village Financial System and the Capacity of the village apparatus and characteristics of village financial reports. The samples of forty-four respondents. This study indicated that the Village Financial System, the Capacity of the village apparatus and internal control system, has a significant positive effect on village financial reports' inflation characteristics. At the same time, the internal control system shows no influence, unable to moderate the relationship between the Village Financial System and the Capacity of the village apparatus and the characteristic.

Published
2021
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44. Diversity of Bivalvia, Gastropoda and Holothuroidea in Intertidal Zone of North Javan Sea Coastal, Indonesia

Author

V. Rohmayani, E. Tunjung Sari M., Nurhidayatullah Romadhon, and H. Ichda Wahyuni

Subjects
bivalvia, gstropoda, holothuroidea, keanekaragaman, zona intertidal, Microbiology, QR1-502
Abstract

This study aims to know diversity of Bivalvia, Gastropoda and Holothuroidea. Measures used in this study were Density Index (D), Diversity Index (H’), Evennes Index (E’) dan Important Value Index (INP). This study used transect sampling method by 1 × 1 meter quadrant. Target species of this study were member of Bivalvia, Gastropoda and Holothuroidea that inhabit in intertidal zone of north Javan Sea coastal. This intertidal zone was divided into 3 zone; zone I is 50 meter, zone II is 75 meter and zone III is 100 meter from coastal line to sea. Total sample of this species were 1064 individual, that divided into 7 species of Bivalvia, 10 species of Gastropoda and 2 spesies of Holothuridea. The highest Diversity Index was for Gastropoda in zone I (253 individual/m2). Diversity Index was in moderate category (1< H’ < 2) while the zone III was the highest. Evennes Index of all zones were relatively similar. The highest Important Value Index was species of Clypeomorus clypeomorus, that has value 53,06%.

Published
2021
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45. Konsep Manajemen Waktu Pada Usia Disni

Author

Hikma Niar, Irmawati, A. Ratna Sari M, Hikma Niar, Irmawati, and A. Ratna Sari M

Abstract

Penelitian ini menganalisis manajemen waktu anak usia 3-6 tahun dari sisi teoritik serta solusi dalam mengatasi problematika manajemen waktu sehingga bisa menumbuhkan kemandirian pada anak. Metode penelitian menggunakan studi literatur dan artikel ilmiah terkait manajemen waktu. Teknik analisis data menggunakan analisis isi terkait fenomena. Hasil analisis menunjukkan bahwa anak dilatih untuk dapat menentukan prioritas mana aktifitas yang penting dan yang harus di dahulukan, agar anak lebih produktif baik di sekolah atau aktifitas lainnya.

Published
2024

46. Vocal Development in Infants and Toddlers with Bilateral Cochlear Implants and Infants with Normal Hearing

Author

Välimaa, Taina T., Kunnari, Sari M., Laukkanen-Nevala, Päivi, and Ertmer, David J.

Abstract

Purpose: The purpose of this study was to investigate the time course of vocal development in infants and toddlers with bilateral cochlear implants (CIs; bilateral CI group) who are acquiring Finnish and to compare their progress to that of infants with normal hearing and typical development (TD group). Method: Five thousand nine hundred sixty-four spontaneous utterances of 30 infants and toddlers (15 in both groups) were classified as either precanonical (PC) vocalizations, basic canonical syllables (BCS), or advanced forms (AF) levels. Time course of development and group differences were analyzed in a prospective longitudinal study during a time course of 1 year: before implantation and 1, 3, 6, 9, and 12 months after CI activation for the bilateral CI group and at 6, 9, and 12 months of age for the TD group. Results: The least mature PC vocalizations decreased and the BCS and AF vocalizations increased for both the bilateral CI and TD groups during the follow-up period of 1 year. The bilateral CI group produced a lower percentage of PC vocalizations (effect size, [eta]p[superscript 2] = 0.35) and a higher percentage of BCS (effect size, [eta]p[superscript 2] = 0.16) and AF vocalizations (effect size, [eta]p[superscript 2] = 0.24) than the TD group. Conclusions: The findings of this study showed that vocal development of infants and toddlers with early-identified profound hearing loss is delayed before CI activation. Findings also showed that infants and toddlers with bilateral CIs make rapid advancements in vocal development after implantation compared to infants with typical development. However, their vocal development seems to remain delayed at least during the 1st year of bilateral CI use as compared to the well-documented milestones of infants and toddlers with typical development. Information about the vocal development time course following bilateral CI activation helps parents recognize progress in auditory-guided speech development before the emergence and the use of spoken words in communication.

Published
2019
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