Judul: Comparison of Morphometric Performance of Bos taurus and Bos indicus cows in Central Lampung.
Abstrak: Kabupaten Lampung Tengah memiliki potensi yang tinggi untuk pengembangan peternakan sapi potong. Morfometrik berguna untuk mengetahui ukuran yang terbaik dan sebagai petunjuk daya adaptasi berbagai bangsa sapi yang ada di peternakan rakyat di Kabupaten Lampung Tengah. Tujuan dari penelitian ini adalah untuk memahami perbedaan performa morfometrik induk betina dari sapi Bos taurus dan Bos indicus. Pengukuran dilakukan secara manual meliputi panjang badan, tinggi badan, tinggi pinggul, lebar pinggul menggunakan roll meter serta lingkar dada dan dalam dada menggunakan pita ukur. Sapi yang digunakan berjumlah 8 ekor sapi Bos indicus (6 ekor Brahman dan 2 ekor Peranakan Ongole) dan 16 ekor sapi Bos taurus (8 ekor Simmental dan 8 ekor Limousin). Sapi yang diteliti adalah berjenis kelamin betina dan umur melebihi dari 24 bulan. Data yang diperoleh dianalisis dengan menggunakan uji T. Ukuran morfometrik sapi Bos indicus dan Bos taurus pada fase umur dan jenis kelamin yang sama di peternakan rakyat Kabupaten Lampung Tengah tidak berbeda nyata. Ukuran morfometrik kedua kelompok sapi lebih tinggi dibandingkan ukuran SNI sapi Bos taurus (Simmental dan Limousin) dan Bos indicus (Peranakan Ongole dan Brahman)., Central Lampung Regency has high potential for the development of cattle farming. Morphometrics is useful for knowing the best size and as an indication of the adaptability of various breeds of cattle on farms in Central Lampung Regency. The aim of this research was to understand the differences in the morphometric performance of cow from Bos taurus and Bos indicus. Measurements were taken manually including body length, height, hip height, hip width using a roll meter and chestsize and inner chest circumference using a measuring tape. The cow used were 8 Bos indicus cattle (6 Brahmans and 2 Ongole Crossbreeds) and 16 Bos taurus cattle (8 Simmentals and 8 Limousin). The cows studied were aged more than 24 months. The data obtained were analyzed using the T test. The morphometric sizes of Bos indicus and Bos taurus cow at the same age and sex stages on farms in Central Lampung Regency were not significantly different. The morphometric sizes of the two groups of cow were higher than the SNI sizes of Bos taurus (Simmental and Limousin) and Bos indicus (Ongole and Brahman crossbreeds).
Keyword: Bos indicus, Bos taurus, Central Lampung Regency, Morphometrics

Judul: Morphometric Analysis of Cattle in Central  Lampung based on Breed, Sex, and Different Body Weight Groups
Abstrak: Bos taurus merupakan spesies sapi yang diimpor memiliki kerangka tubuh besar sehingga banyak dipelihara dan dikembangkan di Indonesia, terutama di Lampung Tengah. Tujuan dari penelitian ini untuk menganalisis morfometrik sapi di Lampung Tengah pada bangsa dan jenis kelamin serta kelompok bobot badan berbeda. Metode penelitian ini menggunakan analisis deskriptif dan analisis parametrik independent samples t-test dan nonparametrik mann whitney u-test. Peubah yang diamati meliputi morfometrik panjang badan, tinggi badan, tinggi panggul, lebar panggul, lingkar dada, dan dalam dada. Perhitungan rasio tubuh dan perbandingan dengan standar yang berlaku juga dilakukan. Hasil pengukuran menunjukkan secara keseluruhan sapi Limousin jantan dan betina lebih besar dibandingkan sapi Simmental. Rasio tubuh menggambarkan sapi Simmental jantan bobot badan >300 kg memiliki bagian belakang yang lebih besar, sedangkan seluruh sapi Simmental betina dan Limousin memiliki proporsi tubuh yang seimbang. Sapi Simmental dan Limousin sudah mencapai standar kuantitatif bibit, hanya sapi Simmental jantan pada ukuran panjang badan dan lingkar dada yang belum mencapai ukuran minimum sehingga tidak disarankan untuk dijadikan bibit., Bos taurus, an imported cattle species with a large body frame, is extensively raised and developed in Indonesia, particularly in Central Lampung. The study aim of this research is to analyze the morphometrics of cattle in Central Lampung across different breeds, genders, and weight groups. This study employs descriptive analysis as well as parametric independent samples t-tests and nonparametric Mann-Whitney U-tests. Observed variables include morphometric measurements such as body length, height, pelvic height, pelvic width, chest circumference, and chest depth. Body ratios are calculated and compared against applicable standards. Measurement results indicate that overall, both male and female Limousin cattle are larger than Simmental cattle. Body ratios illustrate that male Simmental cattle weighing over 300 kg have larger hindquarters, while all female Simmental and Limousin cattle exhibit balanced body proportions. Simmental and Limousin cattle have already met the quantitative breeding standards, except for male Simmental cattle in terms of body length and chest circumference, which have not reached the minimum size and are not recommended for breeding purposes.
Keyword: Bos taurus, entral Lampung, morphometric, quantitative standard

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave