Judul: Faktor-Faktor Penentu Retensi Karyawan dan Pengaruhnya Terhadap Employe Engagement Divisi Sumber Daya Manusia PT Pupuk Kujang
Abstrak: Human resources needed by the company should have the competence, the best performance and have a high level of engagement to the company. Highly engaged workers will reduce the employee turnover rate. Employee perceptions can be used as information to know how much an employee engagement on the company. This research aims to 1) determine the employees' perception of the factors Determinants of employee retention in the HR department of the company; 2) determine employees' perception of employee engagement in corporate human resources divisions and as well as, 3) to analyze the influence factors of employee retention on employee engagement in the HR department of the company. This research was conducted at PT Pupuk Kujang used analysis of multiple linear regression and processed by SPSS 16.0 and Microsoft Excel 2010. This research used primary data and secondary data. The results showed that components of organizational, career opportunities, rewards, tasks and job design, and employee relations jointly influence on employee engagement. While partially not affect employee engagement if only a employee relations influence significantly.
Keyword: PT Pupuk Kujang, perception, turnover, retention, engagement

Judul: Efektivitas Sistem Pengembangan Karir dalam Meningkatkan Employee Engagement pada PT Pupuk Kaltim
Abstrak: Employee engagement is the one of the important factor that is currently widely used by companies to increase productivity. Employees will be engaged if the company can manage well and give a support to employees, one of them through career development system. The purposes of this study are to know employees’ perception about the career development system and employee engagement in PT Pupuk Kaltim, and analizing the effectiveness of the career development system in improving employee engagement. Data that used in this study are primary data and secondary data. This study uses analysis of linear regression and processed by SPSS 16.0 and Microsoft Excel 2010. Employees’ perception about the career development system and employee engagement showed that career development system has been done well and employees has high level of engagement. The result of regression analysis showed that competency assessment and qualification jointly effective in improving employee engagement and only competency assessment individually effective in improving employee engagement.
Keyword: career development system, Employee engagement

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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