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Hasil Pencarian

Ditemukan 5 dokumen yang sesuai dengan query
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Karmidi Martoatmodjo
1996
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UI - Laporan Penelitian  Universitas Indonesia Library
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Simangusong, Febri Monica Diristiani
"Kelompok senyawa diklorofenol (DCP) merupakan salah satu polutan yang terkandung pada limbah cair industri yang sulit terdegradasi di lingkungan sehingga dapat menimbulkan bahaya yang dampaknya dapat berlanjut bagi kesehatan manusia. Senyawa DCP terdapat dalam beberapa isomer berdasarkan letak atom klorin pada cincin aromatik yang harus disisihkan untuk mengurangi dampak yang ditimbulkan. Teknologi yang digunakan untuk menyisihkan kadar konsentrasi DCP yaitu aplikasi Reaktor Plasma Dielectric Barrier Discharge (DBD) karena dinilai memiliki tingkat efisiensi energi tinggi. Reaktor ini menerapkan proses oksidasi lanjutan dengan mengandalkan spesi aktif kuat yaitu radikal ‧OH dan O3. Penelitian ini dilakukan bertujuan untuk mengetahui efektivitas reaktor DBD dalam mendegradasi isomer DCP yaitu 2,4-DCP dan 2,5-DCP dalam kondisi asam (pH 4) dan basa (pH 10). Berdasarkan percobaan, dalam waktu proses 120 menit, reaktor DBD mampu mencapai persentase penyisihan DCP paling tinggi sebesar 89,05 % pada degradasi senyawa 2,5-DCP dengan kondisi pH 10; laju alir 50 mL/menit; laju alir udara 2,5 L/menit; tegangan plasmatron 19 kV. Sedangkan dengan kondisi operasi yang sama, 2,4-DCP terdegradasi sebesar 86,95%. Nilai lebih rendah ditunjukkan pada saat pH asam dari hasil pengolahan kedua isomer DCP tersebut. Penurunan kadar COD limbah mencapai 46,88% pada senyawa 2,5-DCP dan 46,14% pada 2,4-DCP.
.....The dichlorophenol compound group (DCP) is one of the pollutants contained in industrial wastewater that is difficult to be degraded in the environment which can lead to pose hazards, even more, the impact can continue to human health. DCP compounds are present in several isomers based on the location of the chlorine atoms in the aromatic ring, which, must be removed to reduce the impact. The technology used to eliminate DCP concentration levels in wastewater is the application of Dielectric Barrier Discharge (DBD) plasma reactor that has high efficiency. This reactor implements advanced oxidation processes (AOPs) by relying on strong active species namely ‧OH radical and O3 This study aims to determine the effectiveness of DBD reactor in degrading isomer DCP, namely 2,4-DCP and 2,5-DCP under acidic (pH 4) and alkaline (pH 10) conditions. Based on experiments, in the process of 120 minutes, the DBD reactor was able to achieve the highest percentage of DCP removal of 89.05% on the degradation of 2.5-DCP compounds with a pH of 10; flow rate of 50 mL/minute; airflow rate of 2.5 L / min; plasmatron voltage of 19 kV. Whereas with the same operating conditions, 2,4-DCP was degraded by 86.95%. Lower values are indicated when the pH is acidic on both DCP isomers. Reduction of COD content of waste reached 46.88% on 2,5-DCP compounds and 46.14% on 2,4-DCP."
Depok: Fakultas Teknik Universitas Indonesia, 2020
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UI - Skripsi Membership  Universitas Indonesia Library
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Indhina Saraswati
"Media dan Globalisasi merupakan dua hal yang tak mudah untuk dipisahkan. Dalam hal ini ekspansi industri media, yang dimiliki negara-negara besar, mengakibatkan media global, dan pada saat yang sama globalisasi bisa membuat industri media lokal menjadi go global, seperti K-pop. Dominasi budaya Korea tidak hanya disebarkan melalui media tapi juga institusi pendidikan yang dilakukan melalui student exchange di Korea.
Pertanyaan penelitiannya adalah apakah kesempatan belajar di sana, selama dua bulan, akan mengubah identitas pelajar Indonesia? Teori utama dalam research paper ini adalah teori Identitas Stuart Hall. Pemilihan informan dilakukan secara purposive, dengan metode kualitatif dan pendekatan Social Constructivsm dilengkapi dengan obeservasi partisipan dan wawancara mendalam terhadap pelajar yang juga K-pop-ers berat.
Hasil penelitian menunjukkan bahwa identity ke-Indonesiaan dibentuk melalui nilai dan norma dan pengalaman informan masa lalu. Peran orang tua, dan lingkungan sosial serta self identity merupakan faktor kuat dalam menentukan lunturnya identitas ke-Indonesia-an seseorang.

Media and globalization often constitute one unsepararable item. The vast expansion of media owned by big and developed countries has given birth to the new phenomenon of globalized media, which in turn has pushed local media to go global, for example K-pop. K-Pop, as one form of Korean culture is not only disemminated through media but also by educational institution, through exchange programs to Korea.
The research question is whether the opportunity to study there, for two months, will change the identity of Indonesian students? The main theory in this research paper is Stuart Hall's Identity theory. The method used is qualitative method by social constructivism approach through the participation of observations equipped with indepth interview. Selection of informants was conducted purposively against students who were also heavy K-pop-ers.
The results show that the indonesian identity is formed through the values and norms and past experiences of the informants. The role of parents, and the social environment and self-identity is a powerful factor in determining whether such identity will be challenged to diminish or remain solid.
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Depok: Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2017
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UI - Tesis Membership  Universitas Indonesia Library
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Jasmine Apsari Putri Wardhana
"Latar Belakang
Pandemi COVID-19 telah membawa perubahan signifikan pada berbagai aspek kehidupan, termasuk kesehatan mental dan kesejahteraan individu bagi mahasiswa kedokteran. Penelitian ini bertujuan untuk membandingkan tingkat distres psikologis dan disfungsi sosial pada mahasiswa kedokteran preklinik selama masa puncak pandemi dan masa pascapuncak pandemi.
Metode
Desain studi komparatif digunakan, dengan data yang dikumpulkan dari mahasiswa kedokteran preklinik di fakultas kedokteran di Indonesia. Kuesioner General Health Questionnaire 12 (GHQ-12) diberikan untuk menilai distres psikologis dan disfungsi sosial selama periode puncak pandemi (Mei–Agustus 2021) dan periode pascapuncak pandemi (Februari–Mei 2022) di antara mahasiswa. Sebanyak 286 mahasiswa kedokteran preklinik diikutsertakan kemudian statistik deskriptif digunakan untuk meringkas karakteristik demografi peserta, serta uji Mann-Whitney digunakan untuk membandingkan skor rata-rata GHQ-12, skor distres psikologis, dan skor disfungsi sosial antara periode pandemi dan pascapuncak pandemi.
Hasil
Uji Mann-Whitney menunjukkan terdapat perbedaan tingkatan distres psikologis dan disfungsi sosial pada masa puncak pandemi dan masa pascapuncak pandemi. Uji Chi-kuadrat menunjukkan tingkat distres psikologis lebih tinggi pada masa puncak pandemi (p < 0,001) daripada masa pascapuncak pandemi dan tingkat disfungsi sosial lebih tinggi pada masa puncak pandemi daripada masa pascapuncak pandemi (p = 0,033).
Kesimpulan
Terdapat perbedaan tingkatan distres psikologis dan disfungsi sosial terhadap mahasiswa kedokteran preklinik antara masa puncak pandemi dan masa pascapuncak pandemi.

Introduction
The COVID-19 pandemic has brought significant changes to various aspects of life, including mental health and individual well-being for medical students. This study aims to compare the levels of psychological distress and social dysfunction in pre-clinical medical students during the peak period of the pandemic and the post-pandemic period.
Method
A comparative study design was used, with data collected from preclinical medical students at medical faculties in Indonesia. The General Health Questionnaire 12 (GHQ-12) was administered to assess psychological distress and social dysfunction during the peak period of the pandemic (May–August 2021) and post-peak period of the pandemic (February–May 2022) among students. A total of 286 pre-clinical medical students were included, then descriptive statistics were used to summarize the demographic characteristics of the participants, and the Mann-Whitney test was used to compare the mean GHQ-12 scores, psychological distress scores, and social dysfunction scores between the pandemic and post-pandemic periods.
Results
The Mann-Whitney test shows that there are differences in levels of psychological distress and social dysfunction during the peak of the pandemic and the post-pandemic period. The Chi-square test showed that the level of psychological distress was higher during the peak period of the pandemic (p < 0.001) than during the post-pandemic period as well as the level of social dysfunction was higher during the peak period of the pandemic than during the post-peak pandemic period (p = 0.033).
Conclusion
There are differences in the levels of psychological disorders and social dysfunction in pre-clinical medical students between the peak of the pandemic and the post-pandemic period.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2024
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UI - Skripsi Membership  Universitas Indonesia Library