Judul: Teknik Penangkaran dan Kualitas Suara Cucak Rawa (Pycnonotus zeylanicus Gmelin, 1789) di Mega Bird and Orchid Farm, Bogor
Abstrak: The effort which can be established to save straw headed bulbul (Pcynonotus zeylanicus) that has decreased population is ex-situ conservation. Captivation technique, success indicator, voice training techniques performed by manager and distribution sound quality of straw headed bulbul varies need to be identified in order to find out the success rate in captivating straw headed bulbul. This research was conducted in Mega Bird and Orchid Farm, Bogor from March to April 2014. Descriptive and quantitative data analysis was applied in this research. The cage consist of growing cage, reproduction cage, and incubator. Foods given to the bird were banana, papaya, voer and cricket. The types of diseases recorded were diarrhea, white-colored feces, green-colored feces, flu, and paralyzed feet. The criteria and success rate in captivating were consist of medium-scaled egg hatching rate (68.69%), high breed rate (77.38%), and low mortality rate (10.34%). Song training techniques performed was close the straw headed bulbul cage that want to be trained with a cage of straw headed bulbul coach. Distribution sound quality of straw headed bulbul was varies
Keyword: straw headed bulbul, captivity

Judul: Teknik Penangkaran dan Perilaku Harian Jalak Putih di Mega Bird and Orchid Farm Bogor, Jawa Barat
Abstrak: Mega Bird and Orchid farm (MBOF) has succesfully bred Black Winged Starling. The purpose of this research were to identify the captivity technique applied by MBOF and describe the Black Winged Starling‟s behaviours. This research was done from 12th of September to 30th of November 2013. The observation was carried out on a pair of Black Winged Starling. The result showed that the captivity technique in MBOF which include caging, food provisioning, health keeping and reproduction aspect are managed carefully. The practice had resulted 71,4% of parental breeding rate, 83,4% of egg hatching rate and 17,3% of dead chicks rate. The behaviors that had been identified were investigative behaviour, chirping, feeding, preening, resting, moving, bathing, dancing and defecating. Rest and bath performed along with rising temperature, flying avoid was done as response due to care activity. The birds were not stressed out due to care activity although temperature and humidity change.
Keyword: daily behaviours., captivity technique, black winged starling

Judul: Aproksimasi Fungsi Sinus dan Kosinus sebagai Kombinasi Linear dari Fungsi Eksponensial
Abstrak: Salah satu gagasan yang menarik dalam matematika adalah aproksimasi suatu fungsi oleh fungsi lain. Sebagai contoh, fungsi polinom dapat diaproksimasi menggunakan deret Taylor atau fungsi persamaan diferensial dapat diaproksimasi menggunakan deret Fourier. Adapun fungsi yang dapat mengaproksimasi fungsi lain salah satunya adalah fungsi eksponensial. Kemungkinan mengaproksimasi fungsi dengan kombinasi linear dari fungsi eksponensial dari bentuk eˣ, e²ˣ, ... dianggap sebagai perkembangan sejajar dengan gagasan Deret Taylor yang mengaproksimasi fungsi dengan kombinasi linear dari segi fungsi kuadrat. Fungsi sin x dan cos x digunakan sebagai target untuk menilai seberapa baik aproksimasi yang dilakukan oleh fungsi yang diberikan. Aproksimasi fungsi sinus dan kosinus menggunakan hampiran Taylor lebih akurat dibandingkan dengan aproksimasi menggunakan fungsi eksponensial.
Keyword: Aprosimaksi eksponensial, aproksimasi fungsi, aprosimaksi Taylor, fungsi eksponensial