Judul: Pengetahuan, sikap dan praktik tentang kebiasaan sarapan pada siswa Sekolah Dasar Negeri Kebon Kopi 2 Bogor
Abstrak: Tujuan umum Penelitian ini secara umum bertujuan untuk mempelajari pengetahuan, sikap dan praktik tentang kebiasaan sarapan dan status gizi siswa Sekolah Dasar Negeri (SDN) Kebon Kopi 2 Bogor. Adapun tujuan khusus penelitian ini antara lain: (1) Mengidentifikasi karakteristik siswa meliputi; umur, jenis kelamin, berat badan, tinggi badan, besaran uang saku dan karakteristik sosial ekonomi keluarga meliputi; pendidikan orangtua, pekerjaan orangtua, pendapatan orangtua dan besar keluarga.(2) Mempelajari pengetahuan, sikap dan praktik siswa kelas 5 dan 6 tentang kebiasaan sarapan. (3) Mempelajari pengetahuan dan sikap ibu terhadap kebiasaan sarapan siswa kelas 5 dan 6. (4) Mengukur status gizi siswa kelas 5 dan 6 (5) Menganalisis hubungan pengetahuan, sikap dengan praktik siswa tentang kebiasaan sarapan serta status gizi siswa kelas 5 dan 6. (6) Menganalisis hubungan pengetahuan dengan sikap ibu terhadap kebiasaan sarapan serta status gizi siswa kelas 5 dan 6. Desain penelitian ini adalah cross-sectional study. Penelitian ini dilakukan di Sekolah Dasar Negeri (SDN) Kebon Kopi 2 Bogor, pada bulan Mei-Juli 2010. Cara pengambilan contoh dengan purposive sampling. Jumlah contoh dalam penelitian ini yaitu 66 siswa, Sejumlah orangtua siswa (ibu) diambil dari masingmasing kelas 5 dan 6 yaitu 8 orang ibu, total ibu yaitu 16 orang.
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Judul: Beberapa faktor yang mempengaruhi kebiasaan sarapan pagi pada anak usia sekolah : studi kasus di SD Negeri Pengadilan I, Kecamatan Bogor Tengah, dan SD Negeri Malabar I, Kecamatan Bogor Timur, Kotamadya Bogor, Propinsi Jawa Barat
Abstrak: Penelitian ini bertujuan untuk (1) mengetahui karak- teristik sosial ekonomi keluarga dari murid SD yang biasa sarapan pagi dan yang tidak biasa sarapan pagi, (2) me- ngetahui kebiasaan makan keluarga dari murid SD yang bia- sa sarapan pagi dan yang tidak biasa sarapan pagi, (3) mengetahui faktor-faktor yang mempengaruhi sarapan pagi murid SD. kebiasaan Contoh yang diteliti adalah murid SD laki-laki dan perempuan, khususnya murid kelas IV dan V. Contoh murid dibedakan dalam tiga kelompok berdasarkan kebiasaan sarapan paginya, yaitu (1) Biasa sarapan pagi (BSP), (2) Kadang-kadang sarapan pagi (KSP), dan (3) Tidak biasa sarapan pagi (TSP). Jumlah contoh yang diambil dari masing-masing kelompok sebanyak 20 orang kecuali kelompok TSP sebanyak 18 orang. Sebagai responden adalah contoh serta orang tua (ibu), pimpinan sekolah, dan guru wali kelas.
Keyword: Kebiasaan sarapan pagi, Anak usia sekolah, Karakteristik sosial ekonomi keluarga, Pengetahuan gizi ibu

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