Judul: Potensi Beberapa Jenis Rumput Laut Dari Pantai Sayang Heulang - Pameungpeuk Garut Jawa Barat Sebagai Antibakteri Escericia coli
Abstrak: Rumput laut merupakan sumber daya alam yang melimpah di Indonesia, tetapi belum optimal dimanfaatkan oleh masyarakat. Pemanfaatan rumput laut masih terbatas sebagai bahan m.kanan dan penghasil karaginan. Beberapa jenis rumput laut penghasil karaginan telah dijadikan bahan ekspor. Penelitian mengenai potensi rumput laut sebagai sumber antibakteri masih kurang informasi. Penelitian ini bertujuan untuk mempel.jari potensi rumput laut sebagai sumber antibakteri penyebab penyakit diare khususnya EPEC.
Keyword: 

Judul: Pembuatan Minuman sebagai Usaha Diversifikasi Rumput Laut Eucheuma cottonii
Abstrak: Alga laut atau yang lebih dikenal dengan sehutan "rumput laut" Eucheuma cottonii merupakan salah satu sumberdaya alam hayati Indonesia. Tumbuhan ini mempunyai nilai ekonomis yang penting dalam industri kosmetik, pangan dan lain-lain. Bahan ini banyak diolah dalam bentuk kering setelah melalui proses penjemuran atau diolah menjadi makanan siap konsumsi, seperti: dodol, manisan dan minuman. Pada saat ini banyak terdapat minuman sari buah, tetapi masih jarang dijumpai minuman dari rumput laut. Rumput laut bermanfaat untuk kesehatan karena kandungan zat gizinya; antara lain: karbohidrat, protein, mineral, vitamin dan sedikit lemak. Beberapa jenis mengandung lebih banyak vitamin A (beta karoten), B1, B2, B6, B12, C dan niacin, serta mineral penting, seperti kalsium dan zat besi. Masyarakat tradisional biasa memanfaatkan air cucian beras untuk merendam rumput laut sebelum diolah menjadi makanan. Perendaman tersebut bertujuan untuk menghilangkan bau amis pada rumput laut.
Keyword: 

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
Keyword: