Judul: Job Stress, Organizational Climate, and Employee Performance at BPJS Ketenagakerjaan Bogor Cileungsi during the Covid-19 Pandemic
Abstrak: Pandemi Covid-19 menyebabkan karyawan harus beradaptasi dengan kebiasaan baru mereka dalam bekerja. BPJS Ketengakerjaan Bogor Cileungsi, badan yang memfasilitasi layanan kepesertaan bagi tenaga kerja dan perusahaan, menetapkan kebijakan bekerja dengan kombinasi work from home (WFH) dan work from office (WFO) pada situasi ini. Kebijakan baru ini dapat memengaruhi kinerja karyawan. Penelitian ini bertujuan untuk menganalisis pengaruh stres kerja dan iklim organisasi terhadap kinerja karyawan. Metode penarikan sampel menggunakan sampling jenuh dengan responden sebanyak 38 orang. Penelitian ini menggunakan analisis deskriptif dan SEM-PLS. Hasil penelitian menunjukkan bahwa stres kerja berpengaruh negatif dan tidak signifikan terhadap kinerja karyawan. Iklim organisasi berpengaruh positif dan signifikan terhadap kinerja karyawan. Hal ini menunjukkan bahwa semakin baik iklim organisasi, maka semakin meningkat kinerja karyawan. Namun, iklim organisasi tidak memoderasi pengaruh stres kerja terhadap kinerja karyawan. Berdasarkan hasil penelitian, perusahaan perlu mempertahankan atau bahkan meningkatkan iklim organisasi, terutama komitmen karyawan karena memiliki pengaruh besar terhadap peningkatan kinerja karyawan di BPJS Ketenagakerjaan Bogor Cileungsi selama pandemi Covid-19., The Covid-19 pandemic has caused the employee to adapt to their new habits at work. BPJS ketenagakerjaan Bogor Ciluengsi, an agency that facilitates participation services for workers and the company, establishes a working policy with a combination of work from home (WFH) and work from office (WFO) in this situation. This new policy can affect employee performance. This study aims to analyze the effect of job stress and organizational climate on employee performance. The sampling method used a saturation sampling with 38 respondents. The study uses descriptive analysis and SEM-PLS. The results showed that job stress has a negative and insignificant effect on employee performance. Organizational climate has a positif and significant effect on employee performance. This shows that the better the organizational climate, the higher the employee’s performance. However, organizational climate does not moderate the effect of job stress on employee performance. Based on the research results, companies need to maintain or even improve organizational climate, especially employee commitment because it has a major influence on improving employee performance at BPJS Ketenagakerjaan Bogor Cileungsi during the Covid-19 pandemic.
Keyword: Covid-19 pandemic, employee performance, job stress, organizational climate

Judul: The Effect of Work Environment and Work  Motivation on Semen Padang Hospital Employee Performance during the Covid- 19 Pandemic
Abstrak: Keberhasilan organisasi tidak terlepas dari peran sumber daya manusia dan dinamika pekerjaan dapat terjadi seiring berjalannya waktu serta dapat mempengaruhi kinerja karyawan. Salah satu dinamika pekerjaan yaitu adanya perubahan tatanan kehidupan pada berbagai sektor sebagai akibat adanya pengaruh pandemi Covid-19 terutama terhadap kinerja karyawan. Lingkungan kerja dan motivasi kerja menjadi faktor dalam penentuan hasil kinerja setiap karyawan. Karyawan akan bekerja lebih giat dalam melaksanakan pekerjaannya apabila memiliki lingkungan kerja yang baik dan motivasi kerja yang tinggi. Oleh karena itu, penelitian ini bertujuan untuk menganalisis persepsi karyawan mengenai lingkungan kerja dan motivasi kerja Semen Padang Hospital serta menganalisis pengaruh lingkungan kerja dan motivasi kerja terhadap kinerja karyawan selama pandemi Covid-19 dengan menggunakan analisis deskriptif dan analisis SEM (Structural Equation Modeling). Berdasarkan analisis deskriptif, persepsi karyawan mengenai lingkungan kerja dan motivasi kerja termasuk dalam kriteria baik. Berdasarkan hasil analisis SEM, lingkungan kerja memiliki pengaruh yang positif dan signifikan terhadap kinerja karyawan sedangkan motivasi kerja tidak memiliki pengaruh terhadap kinerja karyawan., The success of the organization cannot be detached from the role of its human resources and job dynamics can occur over time and then affect employee performance. One of the dynamics of work is the change in the order of life in various sectors due to the influence of the Covid-19 pandemic, especially employee performance. Work environment and motivation are factors in determining the performance results of each employee. Employees will work harder in carrying out their work if they have a good work environment and high work motivation. Therefore, this study intends to analyze employee perceptions of the work environment and work motivation of Semen Padang Hospital, then the influence of the work environment and work motivation on employee performance during the Covid-19 pandemic by using descriptive and SEM analysis. Based on descriptive analysis, employees' perceptions of the work environment and work motivation are good criteria. Based on SEM analysis, the work environment had a positive and significant influence on employee performance, while work motivation did not affect employee performance
Keyword: Covid-19, Employee Performance, Work Environment, Work Motivation

Judul: Eksplorasi Masalah Logaritma Diskret pada Finite Field G P(2m)
Abstrak: Discrete logarithm problem represents a problem which is defined as modular arithmetic. It is often used to generate a key pair on public key cryptography as security object. Given cyclic group G of order n, αgenerator of G, and β∈􀜩, then, in general, discrete logarithm problem is determined as the integer 􀝔, 0≤􀝔≤􀝊−1, such that α􀯫≡β(mod 􀝊). In Menezes et al. (1997) the algorithm to solve the discrete logarithm problem in common cyclic group G are Exhaustive Search algorithm, Baby-Step Giant-Step, Pollard's rho, Pohlig Hellman and Index Calculus. Furthermore, these algorithms are explored to determine the solution of discrete logarithm problem on 􀜩􀜨(2􀯠). The reconstructed algorithms are implemented using Maple 11 software. These implementation can be used to measure security level of cryptography algorithm, which is based on security aspects of discrete logarithm problem
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