Judul: Kelembagaan Dan Adaptasi Ekologi Komunitas Desa Muara Dalam Rehabilitasi Mangrove
Abstrak: CSR PT Pertamina telah melaksanakan pengembangan masyarakat berbasis ekosistem melalui rehabilitasi mangrove di Desa Muara sebagai tanggung jawab sosial dan lingkungan perusahaan. Tujuan dari penelitian ini adalah: (1) Menganalisis keberlanjutan kelembagaan komunitas rehabilitasi mangrove di Desa Muara; (2) Menganalisis kemampuan adaptasi ekologi komunitas rehabilitasi mangrove di Desa Muara; dan (3) Menganalisis hubungan keberlanjutan kelembagaan dengan kemampuan adaptasi ekologi di Desa Muara. Penelitian ini dilakukan dengan metode kuantitatif dan kualitatif menggunakan kuesioner serta wawancara mendalam. Hasil penelitian menunjukkan bahwa keberlanjutan kelembagaan berada pada kategori unsustain dengan persentase 74.1 %, sedangkan kemampuan adaptasi ekologi berada pada kategori tinggi dengan persentase 92.6 %. Kemudian hasil uji korelasi Rank Spearman menyatakan bahwa tidak terdapat hubungan antara variabel keberlanjutan kelembagaan dengan kemampuan adaptasi ekologi komunitas Desa Muara dalam rehabilitasi mangrove.
Keyword: Adaptasi Ekologi, Corporate Social Responsibility (CSR), Keberlanjutan Kelembagaan

Judul: Penilaian Masyarakat Tentang Implementasi Program Corporate Social Responsibility (Csr) Rehabilitasi Mangrove Dan Perubahan Lingkungan
Abstrak: Program Corporate Social Responsibility (CSR) merupakan upaya yang dilakukan perusahaan untuk memberikan dampak positif bagi masyarakat dan lingkungan. Dalam program rehabilitasi mangrove yang dilakukan PT Pertamina di Desa Muara, Kecamatan teluk Naga, tangerang, bertujuan untuk mengembalikan kelestarian lingkungan akibat abrasi, berbasis pemberdayaan masyarakat dan ekowisata. Keberhasilan program ini bisa dinilai melalui perspektif masyarakat sebagai pelaksana dan penerima manfaat dari program. Oleh karena itu, tujuan dari penelitian ini adalah untuk mengidentifikasi penilaian masyarakat tentang implementasi program dan perubahan lingkungan, serta menganalisis faktor dan berbagai hubungan didalamnya. Metode pengumpulan data yang digunakan dalam penelitian ini adalah pendekatan kuantitatif yang dilengkapi menggunakan data kualitatif. Sumber data berupa data primer dan sekunder. Data primer diperoleh dari hasil wawancara responden dan informan, sedangkan data sekunder diperoleh melalui kajian buku, jurnal penelitian, profil desa, dan laporan tahunan perusahaan. Populasi penelitian ini adalah keseluruhan masyarakat Desa Muara. Unit analisis berupa individu yang menjadi anggota kelompok tani. Responden yang dibutuhkan mencangkup dua jenis, yakni responden penerima program dan responden kontrol.
Keyword: Corporate Social Responsibility, implementasi program, rehabilitasi, penilaian perubahan lingkungan

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