Judul: The Effectiveness of Natesh Sanitary Pad’s Promotion in Bogor.
Abstrak: PT Kangzen Kenko Indonesia dengan salah satu produk unggulannya berupa pembalut Natesh menggunakan bauran komunikasi promosi berupa promosi penjualan, acara dan pengalaman, hubungan masyarakat dan publisitas, pemasaran langsung, pemasaran interaktif, word of mouth marketing, dan penjualan personal. Pembalut sendiri merupakan jenis produk consumer goods. Tujuan penelitian ini adalah menganalisis efektivitas promosi yang dilakukan PT Kangzen Kenko Indonesia dalam mengkomunikasikan pembalut Natesh. Data yang digunakan dalam penelitian ini adalah data primer dan data sekunder. Metode pengambilan sampel adalah dengan purposive sampling. Alat analisis yang digunakan adalah analisis deskriptif, EPIC model, dan direct rating method. Promosi yang dilakukan pembalut Natesh berupa promosi penjualan, acara dan pengalaman, hubungan masyarakat dan publisitas, pemasaran langsung, pemasaran interaktif, word of mouth marketing, dan penjualan personal merupakan promosi yang efektif dan baik.
Keyword: Direct rating method, Effectiveness, EPICModel, Promotion, Descriptive analysis, EPIC Model, Marketing, Personal selling

Judul: Analisis Efektivitas Promosi Terhadap Tingkat Penjualan PT Semen Padang
Abstrak: This thesis analyzes the promotion effectiveness of PT Semen Padang. The purpose of this study are (1) to analyze the promotion effectiveness of PT Semen Padang (2) to analyze the effect of promotion on volume of sales PT Semen Padang. The type of promotions carried out by PT Semen Padang are (a) galatama (b) souvenirs , (c) fair and expo, (d ) customer service, (e) billboards , name boards, sign boxes, (f) print and electronic media. The analytical tool used are EPIC model, DRM ( Direct Rating Method) and multiple regression analysis. Based on the results measurements of effectiveness analysis using the EPIC model shows that the promotion carried out by PT Semen Padang have been effective except customer service. Customer service still in quite effective category, and based on calculations using DRM promotion undertaken by PT Semen Padang is at a good scale. This is in line with the multiple regression test has been done, that the whole promotion ( X ) has an influence on PT Semen Padang sales (Y). But there is one variable promotion that has significant partial effect which is print and electronic media (X6).
Keyword: sales, promotion effectiveness, multiple regression analysis, EPIC model, DRM

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