Judul: Social Networking Sites (SNS) and Empathy Among Adolescents in Indonesia
Abstrak: Social networking sites (SNSs) have increased in number and popularity for more than a decade especially for adolescents. Previous studies conducted in western countries have stated that using SNSs could exert positive and negative effects on various aspects of psychosocial development, one of which is empathy. Empathy is the ability to put yourself in someone else's shoes both emotionally and cognitively. Empathy is divided into 2 components, namely cognitive empathy described as a cognitive role-taking ability or the capacity to engage in the cognitive process of adopting another’s psychological point of view, and affective empathy referring to the recognition of other people's emotions or feelings. Empathy plays a vital role in developing social behavior in adolescents. It is frequently considered the social glue in peer interactions. During adolescence, at a time when developing intimate, meaningful relationships with peers is one of the critical developmental goals, empathy helps one to relate to other people, and learning to empathize is essential. The relationship between SNSs use and empathy has remained unclear, especially in Indonesia. Therefore, the present study aims to determine the relationship between SNSs and empathy on adolescents in Indonesia. This study recruited 1,638 students from junior and senior high school with ages ranging from 12 to 19 years randomly across several provinces in Indonesia. Data collection was carried out by administering online questionnaires to participants consists of four sections; the first section is the introductory page, informing participants about the study and informed consent. The second section asked about demographic data. The third section asked the intensity of SNSs use during the last week with the Social Networking Time Use Scale (SONTUS) method, and last section asked the questions about empathy with the Adolescent Measure of Empathy and Sympathy (AMES) method. In order to assess the associate of empathy with use of social networking sites (SNSs) and demographic data, the Censored Regression Model (censReg) analysis was applied. Our result showed that SNSs significantly positively correlated with cognitive empathy, affective empathy, and sympathy among adolescents in Indonesia, which is similar to previous studies, so this may be a general pattern in adolescence. The connections made by SNSs is believed to increase feelings of humanity (sympathy) and also empathy to other humans. The levels of empathy among female students were higher than those of male students. It may be that female students can better recognize emotions, understand, and share other people's feelings, which facilitates empathy.
Keyword: adolescents, empathy, Indonesia, social networking sites, sympathy

Judul: Interaction Parent and Perr, Social Media Usuge, and Social Skill
Abstrak: Keterampilan sosial merupakan kemampuan yang perlu dimiliki oleh seorang remaja untuk membentuk sikap empati dan kesadaran sosial. Tujuan penelitian ini untuk menganalisis interaksi remaja – orang tua dan teman sebaya, serta pengunaan media sosial terhadap keterampilan sosial. Penelitian ini melibatkan 100 remaja akhir usia 18 sampai 21 tahun di seluruh Indonesia. Penelitian ini menggunakan desain Cross-sectional, metode survey dengan alat bantu kuesioner menggunakan google form. Kualitas interaksi remaja – orang tua dan teman sebaya, penggunaan media sosial, serta keterampilan sosial berada dalam katagori sedang. Hasil uji kolerasi menunjukkan bahwa terdapat hubungan positif interaksi remaja – orang tua dan teman sebaya serta penggunaan media sosial dengan keterampilan sosial. Hasil uji regresi menunjukkan terdapat pengaruh positif interaksi remaja – teman sebaya dan penggunaan media sosial terhadap keterampilan sosial. Artinya, semakin baik kualitas interaksi remaja dengan teman sebaya dan penggunaan media sosial, akan meningkatkan keterampilan sosial., Social skills are abilities that need to be possessed by a teenager to form an attitude of empathy, social awareness, and mutual understanding. The purpose of this study was to analyze the interaction of adolescents - parents and peers, and the use of social media on social skills. This study involved 100 late teens throughout Indonesia. This study uses cross-sectional, using survey and questionnaire methods with google form. The sample has a moderate category on the quality of interaction between adolescents - parents and peers, use of social media, and social skills. The results of the correlation test show that there is a positive relationship between adolescent-parent and peer interactions on the use of social media. In addition, adolescent-parent and peer interactions, and use of social media were positively related to social skills. The results of the regression test showed that there was a positive effect of adolescent – peer interaction and the use of social media on social skills.
Keyword: adolescent, interaction, social media, social skill

Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf