Judul: Studi Pelacakan Alumni Jurusan Statistika IPB
Abstrak: Penelitian ini bertujuan untuk menelusuri infonnasi mengenai alumni JUlUsan Statistika IPB yang meliputi profil alumni, keterkaitan antara peubah-peubah, dan saran untuk JUlUsan Statistika IPB. Studi pelacakan ini menggunakan metode survei dengan pengiriman kuesioner melalui pos, e-mail, dan langsung. Alumni yang disurvei adalah alumni yang merni1iki data terakhir (tahun 1998-2001) yang dipilih melalui penarikan contoh purpasive.
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Judul: Studi Pelacakan Alumni Departemen Statistika FMIPA IPB (Studi Kasus pada Angkatan 36-45)
Abstrak: Department of Statistics, Bogor Agricultural University (IPB) many top producing graduates that are spread throughout the field work. One indicator of success is the contribution of graduates of higher education in society and the development and engagement of alumni in the dynamics of the workplace. Alumni tracking studies can provide information about the profile of graduates of the Department of Statistics 36-45 IPB particular class (year in 1999-2008). Alumni are expected to provide information on the relevance of knowledge and skills (relationship between competencies acquired during the lectures with field work), the relationship between grade point average (GPA) of the waiting time work, field work of alumni present, the extent to which the use/ knowledge of statistics to the field of work. Adequacy analysis, interests, and purposes related to competencies Department of Statistics. Respondents who responded to this study of 204 respondents (40.8 %) of the total population of 500 respondents. Area of origin of respondents were mostly from the Greater Jakarta area by 43.1 %, driveways Admission Exam IPB (USMI) as much as 76 %, as many as 20.1 % of respondents have a High GPA (GPA ≥ 3.51), cum laude by 5 %. The average wait for a job for 2 months with an average salary of first job after being transformed to the present value of Rp 3,370,000.00. There is a tendency of working first salary differences between respondents who have a High GPA with a low GPA. Respondents gender pay gap also has a tendency of work the first time, respondents have a tendency of female sex work first salary higher than the respondents gender male. Predicate graduation also has the distinction of first salary job, graduation cum laude predicate has a higher salary than the predicate is very satisfying and fulfilling graduation. Field work consisted of alumi academia, finance, administration, research, and advertising. As many as 40 % of alumni working in the field of research. Alumni statistics also been doing moving work, 63.3 % among respondents had changed jobs done. Statistics have a role in the world of work, amounting to 38.6 % pretty much using statistical science in the workplace. Adequacy analysis, interests, and purposes related to competencies Department of Statistics. Competency skills survey design, experimental design, data management is widely used in the field of research work.
Keyword: purposes., interests, Adequacy analysis, tracking studies, Department of Statistics Bogor Agricultural University

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell