Judul: Efektivitas Penerapan Manajemen Pengetahuan dalam Meningkatkan Kompetensi Karyawan PT Pupuk Kalimantan Timur
Abstrak: Employee Competency is one of the factor required by firm to improve the competitiveness for its rival. Knowledge management is one of the activities that can improve employee competency. The purposes of this research were to know employees‟ perception about implementation of knowledge management and its impact in improving employee competency at PT Pupuk Kaltim. This research used analysis of multiple linear regression and processed by SPSS 16.0 and Microsoft Excel 2010. The result regression analysis showed that knowledge management is effectively done by firm and employee competency increase well after following knowledge management. The result of regression analysis showed that knowledge management jointly influence the employee competency and transferring knowledge and reuse knowledge were the variable that partially influence on employee competency.
Keyword: employee competency., knowledge management

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: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular