Judul: Pengaruh Gaya Kepemimpinan Terhadap Disiplin Kerja Pegawai Dinas Kebersihan dan Pertamanan Kota Bogor
Abstrak: Pegawai Dinas Kebersihan dan Pertamanan Kota Bogor harus bersedia menaati semua peraturan dan norma-norma yang berlaku agar tetap bisa mencapai sasaran organisasi. Agar pegawai menaati peraturan dan norma-norma yang berlaku dibutuhkan penerapan gaya kepemimpinan yang tepat bagi Kepala Dinas Kebersihan dan Pertamanan Kota Bogor. Tujuan penelitian ini adalah mengidentifikasi gaya kepemimpinan Kepala Dinas Kebersihan dan Pertamanan Kota Bogor, mengidentifikasi disiplin kerja pegawai Dinas Kebersihan dan Pertamanan Kota Bogor, menganalisis pengaruh gaya kepemimpinan terhadap disiplin kerja pegawai Dinas Kebersihan dan Pertamanan Kota Bogor. Hasil penelitian menunjukkan bahwa Kepala Dinas menerapkan gaya kepemimpinan kharismatik. Pegawai melaksanakan disiplin kerja yang ditetapkan. Gaya kepemimpinan otokratik, kharismatik, laissez faire berpengaruh positif terhadap disiplin kerja sedangkan gaya kepemimpinan paternalistik dan demokratik berpengaruh negatif terhadap disiplin kerja.
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Judul: Pengaruh Gaya Kepemimpinan terhadap Disiplin Kerja Pegawai Kantor Kecamatan Ciampea Kabupaten Bogor
Abstrak: Kantor Kecamatan Ciampea merupakan kantor pelayanan masyarakat yang berada di Kecamatan Ciampea. Pada pelaksanaannya, dibutuhkan kinerja pegawai yang efektif agar semua pelayanan dapat terlaksana dengan baik. Salah satu cara agar kinerja pegawai efektif adalah memaksimalkan disiplin kerja dengan melalui penerapan gaya kepemimpinan yang sesuai dengan lingkungan kerja. Penelitian ini bertujuan untuk mengidentifikasi gaya kepemimpinan, mengidentifikasi tingkat disiplin kerja, dan menganalisis pengaruh gaya kepemimpinan. Data diperoleh dari hasil kuesioner seluruh pegawai yang ada di Kantor Kecamatan Ciampea. Analisis penelitian ini menggunakan metode regresi linier berganda melalui alat pengolahan data SPSS ver.24 for Windows. Hasil analisis menunjukkan bahwa gaya kepemimpinan di Kantor Kecamtan Ciampea sudah baik dan disiplin kerjanya sudah sangat baik. Namun, gaya kepemimpinan yang menunjukkan pengaruh lebih besar terhadap disiplin kerja adalah gaya kepemimpinan autokrasi dan demokratis.
Keyword: Disiplin kerja, gaya kepemimpinan, regresi linear berganda

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