Judul: Pengaruh Pengetahuan dan Persepsi terhadap Motivasi Pembelian Pospak pada Ibu Bekerja
Abstrak: Dewasa ini, penggunaan pospak di Indonesia sangat tinggi. Kepraktisan adalah salah satu kelebihan yang ditawarkan oleh pospak. Namun di sisi lain, pospak juga dapat menimbulkan dampak negatif bagi bayi dan lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh pengetahuan tentang pospak dan persepsi tentang pospak terhadap motivasi pembelian pospak pada ibu bekerja. Desain penelitian ini adalah cross sectional study dan melibatkan 100 ibu bekerja dengan anak batita yang menggunakan pospak. Persepsi mengukur pandangan baik dan buruk tentang pospak. Hasil penelitian menunjukkan bahwa pengetahuan tentang pospak pada ibu bekerja terkategori tinggi, persepsi tentang pospak terkategori baik dan motivasi pembelian pospak terkategori tinggi. Persepsi memiliki pengaruh positif terhadap motivasi pembelian pospak.
Keyword: Motivasi, pengetahuan, persepsi, pospak

Judul: Faktor-Faktor yang Mempengaruhi Perilaku Kunjungan Ibu Balita ke Posyandu di Wilayah Kerja Puskesmas Kebayoran Lama
Abstrak: Tujuan penelitian ini adalah menganalisis faktor-faktor yang mempengaruhi perilaku kunjungan ibu ke posyandu. Desain penelitian yang digunakan adalah cross sectional study dengan jumlah contoh sebanyak 75 ibu yang memiliki balita 6-59 bulan yang dipilih secara acak di wilayah kerja Puskesmas Kecamatan Kebayoran Lama. Perilaku kunjungan ibu balita dibagi menjadi tiga komponen yang terdiri dari pengetahuan, sikap dan tindakan kunjungan ibu ke posyandu. Hasil uji korelasi Spearman menunjukkan hubungan yang signifikan (p < 0.05) antara pengetahuan ibu tentang posyandu dengan dukungan keluarga; sikap ibu tentang posyandu dengan pendidikan, motivasi dan dukungan tokoh masyarakat; serta pengetahuan dengan sikap ibu. Hasil uji regresi logistik menunjukkan bahwa motivasi mempengaruhi sikap ibu untuk berkunjung ke posyandu dengan faktor risiko 8.286 kali, yang artinya ibu yang memiliki motivasi negatif berisiko 8.286 kali lebih besar untuk memiliki sikap kunjungan ke posyandu yang kurang baik.
Keyword: balita, ibu, motivasi, perilaku

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.
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