Judul: Kajian Faktor-Faktor Sosial Ekonomi yang Mempengaruhi Fertilitas Pasangan Usia Subur dalam Rangka Pengelolaan Kependudukan
Abstrak: Tujuan penelitian ini ialah untuk mengetahui faktor-faktor sosial ekonomi dan sosial demografi yang berkaitan serta faktor lingkungan biofisik terhadap fertilitas . Pen elitian ini dilakukan secara survai pada tiga kecamatan di Ujung Padang, yang berbeda-beda tingkat perkembangan elronominya. Responden terdiri dari ibu-ibu yang dalam status kaviin dan berurnur antara 15-45 (49) tahun.
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Judul: Penentuan beberapa faktor demografis dan sosial ekonomi sebagai indikator bagi tingkat fertilitas melalui analisis regresi
Abstrak: Tujuan penelitian ini untuk menentukan faktor-faktor yang mempengaruhi fertilitas dan dapat digunakan sebagai indikator bagi fertilitas pada tingkatan propinsi. Penelitian ini menggunakan model regresi linear berganda melalui prosedur kuadrat terkecil dalam pendugaan parameternya. Data yang digunakan adalah data Survei Prevalensi Kontrasepsi Indonesia (SPI, 1987) dan merupakan data agregate. Pelaksanaannya oleh Biro Pusat Statistik bekerja sama dengan Badan Koordinasi Keluarga Berencana Nasional dan Institute for Resource Development dari Westing- house. SPI'87 dilakukan pada bulan September sampai Desember 1987 di 20 dari 27 propinsi di se- luruh Indonesia. Peubah yang digunakan adalah tingkat fertilitas (Y), pendidikan ibu (X), mortali- tas anak (X), jumlah akseptor (X), frekuensi menikah lebih dari satu kali (X), usia pertama menikah (X), ibu bekerja (X) dan pendidikan suami (X). Ragam sisaan model homogen dapat dilihat dari plot antara sisaan dengan propinsi dan plot sisaan dengan dugaan. Kenormalan sisaan dapat dilihat dari plot kwantil-kwantil. Model yang didapat mencakup 6 peubah. Dari model yang didapat memberikan nilai koefi- sien determinasi sebesar 70.9%. Dari hasil analisis regresi di dapatkan bahwa hanya faktor mortalitas anak dan jumlah akseptor yang berpengaruh terhadap tingkat fertilitas. Ukuran yang dipakai adalah dalam bentuk rata-rata, proporsi dan median. Unit satuannya adalah propinsi dalam SP1'87.
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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