Judul: Gaya Pengasuhan, Kelekatan Teman Sebaya, Paparan Media Sosial, dan Karakter Sopan Santun pada Siswa SMP
Abstrak: Karakter sopan santun adalah sekumpulan nilai baik yang didasarkan pada perasaan untuk menghargai diri sendiri, orang lain, dan menghargai lingkungan yang ditunjukan dengan perilaku yang menyayangi dan menghormati diri sendiri, orang lain, dan lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh gaya pengasuhan orang tua, kelekatan teman sebaya, dan paparan media sosial terhadap karakter sopan santun siswa SMP. Penelitian ini dilakukan dengan melibatkan 86 siswa yang terpilih menggunakan teknik simple random sampling. Hasil penelitian ini menunjukan bahwa gaya pengasuhan yang diterapkan oleh orang tua adalah autoritatif, kelekatan teman sebaya dikategorikan masih rendah, paparan media sosial remaja dapat dikategorikan tinggi, dan karakter sopan santun remaja dapat dikategorikan tinggi. Karakter sopan santun remaja perempuan lebih baik dibandingkan remaja laki-laki. Kelekatan teman sebaya juga berpengaruh positif terhadap karakter santun pada anak. Faktor lain yang berpengaruh terhadap karakter santun remaja yaitu usia anak, usia ayah, dan lama pendidikan ibu. Kata kunci: gaya pengasuhan, karakter sopan santun, media sosial, siswa SMP, teman sebaya
Keyword: gaya pengasuhan, karakter sopan santun, media sosial, siswa SMP, teman sebaya

Judul: Pengaruh Lingkungan Pengasuhan dan Kelekatan Ayah terhadap Karakter Sopan Santun Remaja di Perdesaan.
Abstrak: Saat ini karakter sopan santun pada anak semakin memprihatinkan. Keluarga memiliki peranan penting dalam membentuk karakter sopan santun. Lingkungan pengasuhan dan kelekatan ayah akan turut memengaruhi terbentuknya karakter sopan santun pada remaja. Penelitian ini bertujuan untuk menganalisis pengaruh karakteristik remaja dan keluarga, lingkungan pengasuhan, dan kelekatan ayah terhadap karakter sopan santun remaja, khususnya yang tinggal di perdesaan. Penelitian ini melibatkan 116 responden yang terdiri atas 58 siswa SMP berserta ibunya yang dipilih dengan teknik purposive. Lingkungan pengasuhan diukur dengan menggunakan Home Obsevation for Measurement of the Environment (HOME) tipe Early Adolescent (EA) dan kelekatan ayah diukur dengan menggunakan Inventory of Parent and Peer Attachment (IPPA) tipe father attachment Dalam penelitian ini ditemukan bahwa jenis kelamin anak, usia ibu, dan kelekatan ayah-remaja berpengaruh terhadap karakter sopan santun. Pada hasil lainnya ditemukan bahwa lingkungan pengasuhan di rumah secara keseluruhan tidak berpengaruh signifikan terhadap karakter sopan santun.
Keyword: karakter sopan santun, kelekatan ayah, lingkungan pengasuhan, perdesaan, remaja

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice