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"This study explores whether teenagers? traditional media use timehas been affected by smartphone use time. Drawing on the Korean Media PanelSurvey from 2011 to 2014, we specify two models?a two-stage least squares(2SLS) and a two-stage least squares with individual fixed effects (2SLS-FE)?and compare the estimates. The estimates from the 2SLS model show thatteenagers? smartphone use time has a substitution effect on book reading time,computer use time, and TV watching time, while the estimates from the 2SLSFEmodel show that teenagers? smartphone use time has a substitution effect onteenagers? book reading time and computer use time but no significant effect ontheir TV watching time."

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Mahasiswa diharapkan mampu menjadi sumber daya manusia berkualitas dalam bidang pendidikan. Demi terwujudnya harapan tersebut, mahasiswa dituntut untuk berpartisipasi dalam berbagai kegiatan akademis maupun non-akademis. Dalam hal ini banyak mahasiswa merasa stres. Stres akademik yang dialami juga bervariasi, mulai dari stres akademik rendah, sedang, maupun tinggi. Dalam upaya menurunkan stres akademik pada mahasiswa, perlu diketahui variabel-variabel yang signifikan menjelaskan stres akademik pada mahasiswa. Terdapat variabel-variabel demografi,  internal maupun eksternal seperti gender, self-efficacy, hardiness, prokrastinasi akademik, kecemasan terhadap Covid-19, dukungan sosial teman sebaya, dan dukungan sosial orangtua yang diduga dapat menjelaskan stres akademik pada mahasiswa. Selain itu akan dilihat pola hubungan antara stres akademik dan variabel-variabel yang signifikan. Penelitian ini dilakukan pada masa Covid-19 sehingga terdapat variabel seperti kecemasan terhadap Covid-19. Metode yang digunakan pada penelitian ini adalah metode regresi linear berganda dan analisis korespondensi berganda.  Sampel pada penelitian ini adalah mahasiswa S1 FMIPA Universitas Indonesia dengan jumlah 610 mahasiswa. Sampel diambil menggunakan teknik quota sampling. Hasil penelitian menujukkan bahwa variabel-variabel yang signifikan menjelaskan stres akademik adalah gender, self-efficacy, prokrastinasi akademik, kecemasan terhadap Covid-19, dan dukungan sosial orangtua. Penelitian ini juga menujukkan bahwa mahasiswa dengan stres akademik tinggi diketahui memiliki kebiasaan menunda waktu pengerjaan tugas akademik yang tinggi, tingkat kecemasan terhadap Covid-19 yang tinggi , dan tingkat kepercayaan diri (self-efficacy) yang rendah. Selain itu mahasiswa yang memiliki stres akademik rendah memiliki kebiasaan menunda waktu pengerjaan tugas akademik yang rendah, tingkat kecemasan terhadap Covid-19 yang rendah, tingkat kepercayaan diri (self-efficacy) yang tinggi, dukungan sosial orangtua yang tinggi, dan cenderung dialami oleh gender laki-laki.

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Students are expected to be able to become quality human resources in the field of education. In order to realize these hopes, students are required to participate in various academic and non-academic activities. In this case, many students feel stressed. The academic stress experienced also varies, ranging from low, medium, or high academic stress. In an effort to reduce academic stress in students, it is necessary to know the variables that significantly explain academic stress in students. There are demographic variables, internal and external such as gender, self-efficacy, hardiness, academic procrastination, anxiety about Covid-19, peer social support, and parental social support which are thought to explain academic stress in students. Apart from that, we will see the pattern of relationship between academic stress and significant variables. This research was conducted during the Covid-19 era so there were variables such as anxiety about Covid-19. The method used in this research is the multiple linear regression method and multiple correspondence analysis. The sample in this research was undergraduate students from the FMIPA University of Indonesia with a total of 610 students. Samples were taken using quota sampling technique. The research results show that the variables that significantly explain academic stress are gender, self-efficacy, academic procrastination, anxiety about Covid-19, and parental social support. This research also shows that students with high academic stress are known to have a habit of delaying work on academic assignments, high levels of anxiety about Covid-19, and low levels of self-confidence. In addition, students who have low levels of academic stress have a habit of delaying the time for doing academic assignments, low levels of anxiety about Covid-19, high levels of self-efficacy, high parental social support, and tend to be experienced by gender man.

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"The book concerns the notion of association in probability and statistics. Association and some other positive dependence notions were introduced in 1966 and 1967 but received little attention from the probabilistic and statistics community. The interest in these dependence notions increased in the last 15 to 20 years, and many asymptotic results were proved and improved. The goal of this book is to bring together the bulk of these results, presenting the theory in a unified way, explaining relations and implications of the results. It will present basic definitions and characterizations, followed by a collection of relevant inequalities. These are then applied to characterize almost sure and weak convergence of sequences of associated variables. It will also cover applications of positive dependence to the characterization of asymptotic results in nonparametric statistics. "

"Skripsi ini ditulis dengan tujuan untuk melihat apakah terdapat hubungan antara kualitas pelayanan elektronik e-service quality, nilai jasa yang dirasakan perceived service value, kepercayaan trust, dan kepuasan pelanggan customer satisfaction pada responden yang pernah menggunakan layanan Tokopedia melalui aplikasi smartphone. Responden penelitian ini adalah generasi millennial yang berdomisili di Jabodetabek. Penelitian ini menggunakan metode Structural Equation Modelling SEM dalam proses pengolahan datanya. Secara keseluruhan penelitian ini menemukan bahwa, e-service quality tidak memiliki pengaruh secara langsung terhadap customer satisfaction. Namun, melalui variabel perceived service value dan trust, e-service quality memiliki pengaruh secara tidak langsung terhadap customer satisfaction.

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This research is written with the aim to see whether there is a relationship between the e service quality, perceived service value, trust, and customer satisfaction on respondents who have used Tokopedia service Through smartphone apps. Respondents of this research is the millennial generation domiciled in Jabodetabek. This research uses Structural Equation Modelling SEM method in data processing process. Overall, this study found that e service quality has no direct effect on customer satisfaction. However, through perceived service value and trust variables, e service quality has an indirect effect on customer satisfaction."

"[ Penelitian ini didasari oleh fenomena penggunaan telepon genggam secaraberlebihan sehingga mengganggu kehidupan pribadi maupun profesionalpenggunanya.Penelitian ini bertujuan untuk menjelaskan apakah self-esteem danloneliness memiliki hubungan dengan mobile phone addiction. Pengukuran selfesteemmenggunakan Rosenberg?s Self-esteem Scale, pengukuran lonelinessmenggunakan UCLA Loneliness Scale sedangkan mobile phone addiction diukurmenggunakan Mobile Phone Addiction Index. Karakteristik responden dalampenelitian ini adalah dewasa muda dengan rentang usia 20-40 tahun yangmemiliki telepon genggam dengan akses internet. Jumlah responden yangdidapatkan sebanyak 296 orang dengan menggunakan teknik accidental sampling.Hasil penelitian menunjukkan bahwa hipotesis null ditolak (r = 0.157, p < 0.05)dan nilai determinasi sebesar 0.025 (r2 = 0.025), yang berarti terdapat hubunganyang signifikan antara self-esteem dan loneliness terhadap mobile phoneaddiction. Hal ini menunjukkan bahwa tingkat mobile phone addiction seseorangdapat diprediksi berdasarkan tingkat loneliness dan tingkat self-esteemnya sebesar2,5% dan sisanya dijelaskan oleh variabel lain. Implikasi dari penelitian ini adalahdiharapkan bahwa masyarakat dapat mengidentifikasi penyebab dari kecanduantelepon genggam dan segera melakukan intervensi.;This study is based on excessive use phenomenon of mobile phones that interferesone?s personal and professional life. This research aims to explain the relationshipbetween self-esteem and loneliness towards mobile phone addiction. Self-esteemis measured by using Rosenberg?s Self-esteem Scale while loneliness is measuredby using UCLA Loneliness Scale. Lastly, mobile phone addiction is measured byusing Mobile Phone Addiction Index. Respondent counts 296 young adultsbetween 20-40 who own a mobile phone with internet access. The results showthat the null hypothesis is rejected (r = 0.157, p < 0.05) and determination value0.021 (r2 = 0.025), which means there is a significant relationship between selfesteemand loneliness towards mobile phone addiction. The implications of thisresearch are expected to enable the society to identify causes of mobile phoneaddiction and immediately start an intervention.;This study is based on excessive use phenomenon of mobile phones that interferesone?s personal and professional life. This research aims to explain the relationshipbetween self-esteem and loneliness towards mobile phone addiction. Self-esteemis measured by using Rosenberg?s Self-esteem Scale while loneliness is measuredby using UCLA Loneliness Scale. Lastly, mobile phone addiction is measured byusing Mobile Phone Addiction Index. Respondent counts 296 young adultsbetween 20-40 who own a mobile phone with internet access. The results showthat the null hypothesis is rejected (r = 0.157, p < 0.05) and determination value0.021 (r2 = 0.025), which means there is a significant relationship between selfesteemand loneliness towards mobile phone addiction. The implications of thisresearch are expected to enable the society to identify causes of mobile phoneaddiction and immediately start an intervention., This study is based on excessive use phenomenon of mobile phones that interferesone’s personal and professional life. This research aims to explain the relationshipbetween self-esteem and loneliness towards mobile phone addiction. Self-esteemis measured by using Rosenberg’s Self-esteem Scale while loneliness is measuredby using UCLA Loneliness Scale. Lastly, mobile phone addiction is measured byusing Mobile Phone Addiction Index. Respondent counts 296 young adultsbetween 20-40 who own a mobile phone with internet access. The results showthat the null hypothesis is rejected (r = 0.157, p < 0.05) and determination value0.021 (r2 = 0.025), which means there is a significant relationship between selfesteemand loneliness towards mobile phone addiction. The implications of thisresearch are expected to enable the society to identify causes of mobile phoneaddiction and immediately start an intervention.]"

"Pendahuluan: Media sosial merupakan hasil perkembangan dari teknologi informasi dan komunikasi. Media sosial menjadi media online favorit remaja. Media sosial memiliki berbagai macam jenis mulai dari Facebook, Instagram, Twitter, dan sebagainya. Kelompok remaja merupakan kelompok yang paling banyak menggunakan internet pada tahun 2022 yaitu sebesar 75% dari total populasi kelompok usia 15-24 tahun di dunia. Menurut survei, remaja menggunakan media sosial dan internet untuk memperoleh informasi kesehatan. Namun, pemanfaatan media sosial juga memberikan dampak bagi remaja. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pemanfaatan media sosial bagi remaja dan dampaknya terhadap kesehatan. Metode: Penelitian ini menggunakan metode literature review pada database PubMed, Science Direct, Scopus, dan Garuda untuk artikel yang dipublikasi pada rentang tahun 2016-2023. Penelitian ini menghasilkan 24 studi terinklusi. Hasil: Penelitian ini menemukan bahwa media sosial dan internet memberikan manfaat untuk remaja yaitu memberikan kemudahan dan kenyamanan kepada mereka untuk mendapatkan informasi kesehatan. Informasi kesehatan yang umumnya didapatkan oleh remaja adalah tentang gaya hidup, kesehatan mental, kesehatan seksual, dan masalah kehidupan sehari-hari. Remaja yang memanfaatkan media sosial tersebut mendapatkan dampak berupa dampak positif seperti peningkatan motivasi maupun dampak negatif seperti cyberbullying dan gangguan kesehatan mental.

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Introduction: Social media is the result of the development of information and communication technology. Social media is the favourite online media for adolescents. Social media has various types, from Facebook, Instagram, Twitter, Etc. The adolescent group is the group that uses the internet the most in 2022, namely 75% of the total population in the world's 15-24 year age group. According to surveys, adolescents use social media and the internet to obtain health information. However, the use of social media also has an impact on adolescents. Therefore, this study aims to determine adolescents' use of social media and its impact on health. Methods: This study used the literature review method on the PubMed, Science Direct, Scopus, and Garuda databases for articles published in the 2016-2023 range. This research resulted in 24 included studies. Results: This study found that social media and the internet benefit adolescents, providing convenience and comfort in obtaining health information. Adolescents generally obtain health information about lifestyle, mental health, sexual health, and daily life problems. Adolescents who use social media get positive impacts, such as increased motivation and also negative impacts, such as cyberbullying and mental health disorders."