Judul: Transformasi Optimal Analisis Procrustes: Program Aplikasi pada MATLAB dan Penerapannya
Abstrak: Analisis Procrustes digunakan untuk menentukan nilai perbedaan minimum melalui transformasi geometris yaitu translasi, rotasi, dan dilasi. Dengan menggunakan counter example, dapat diketahui bahwa ukuran Procrustes tidak simetrik. Cara agar ukuran Procrustes menjadi simetrik adalah dengan melakukan normalisasi sebelum atau sesudah proses rotasi. Proses normalisasi sudah terdapat pada built-in function procrustes(𝐗������, 𝐘������) di MATLAB. Terdapat dua masalah pada built-in function analisis Procrustes pada MATLAB yang difokuskan pada karya ilmiah ini yaitu dimensi data pada matriks dan matriks transformasi optimal. Analisis Procrustes dapat diterapkan pada analisis korespondensi untuk mencari ukuran kesesuaian. Analisis Procrustes untuk hubungan provinsi dengan lapangan pekerjaan utama menghasilkan ukuran kesesuaian masing-masing untuk profil baris dan kolom sebesar 88.65% dan 86.10%. Ukuran kesesuaian masing-masing untuk representasi profil baris dan kolom sebesar 98.05% dan 97.22%.
Keyword: analisis Procrustes, analisis korespondensi, MATLAB, transformasi optimal, ukuran kesesuaian

Judul: Ukuran kesesuaian analisis korespondensi melalui analisis procrustes
Abstrak: Correspondence analysis is a part of multivariate analysis studying the relationship of two or more variables which are displayed in rows and columns simultaneously from contingency table in low dimensional space using the Chi-square distance. From correspondence analysis, it is obtained row and column profiles co-ordinate matrix. This study aims to calculate the goodness-of-fit of correspondence analysis via Procrustes analysis and applied to two examples of data, i.e. the relationships between categories of smokers and groups of employees and the relationship between the province and the main jobs. To obtain the Procrustes analysis, we need to determine minimum difference through three geometric transformations, i.e. translation, rotation, and dilation. In correspondence analysis, we need to do three transformations on Procrustes analysis to obtain goodness-of-fit in row and column profiles co-ordinate matrix. The result of Procrustes analysis for relationship between employee groups and smoking habits to row and column profiles is 98.64% and 99.53% respectively. While the result of Procrustes analysis for relationship between province and the main jobs to row and column profiles is 91.83% and 88.25% respectively.
Keyword: Procrustes analysis, goodness-of-fit, correspondence analysis

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum