Judul: Hubungan antara Fluid Intelligence dan Kebiasan Makan pada Mahasiswa IPB University
Abstrak: Fluid intelligence is defined as the ability to reason and solve new problems through logic instead of previous knowledge. Nutrition has been shown to have a correlation with fluid intelligence. But nutrients can be lost benefits or deform during the food manufacturing process. Thus, further study is required into the correlation of nutrition on fluid intelligence, which is focused on eating habits where food is classified based on NOVA system that is effective for separating types of food based on the manufacturing process. This study aimed to collect the data and determine the relationship between fluid intelligence and eating habits of IPB University students. Research data was obtained by online questionnaire. Each respondent filled out a questionnaire, consisting of demography data, Baddeley Reasoning Test (BRT) to measure fluid intelligence, and Diet History Questionnaire III (DHQ III) to determine eating habits. The food data obtained were classified based on the NOVA system. Research results showed fluid intelligence was positively correlated with the total consumption of moderately processed food. Sex correlated significantly with the total consumption of highly processed food. Fluid intelligence had no significant correlation with age and sex., Fluid Intelligence didefinisikan sebagai kemampuan untuk bernalar dan memecahkan masalah baru melalui logika, tanpa pengetahuan sebelumnya. Nutrisi terbukti memiliki hubungan dengan kecerdasan cairan. Tetapi nutrisi dapat kehilangan manfaatnya atau berubah bentuk selama proses pembuatan makanan. Oleh karena itu, diperlukan penelitian lebih lanjut mengenai hubungan nutrisi terhadap fluid intelligence yang difokuskan pada kebiasaan makan dimana makanannya diklasifikasikan berdasarkan sistem NOVA yang efektif untuk memisahkan jenis makanan berdasarkan proses pembuatannya. Penelitian ini bertujuan untuk mengumpulkan data dan mengetahui hubungan antara fluid intelligence dengan kebiasaan makan mahasiswa IPB University. Data penelitian diperoleh dengan kuesioner online. Setiap responden mengisi kuesioner yang terdiri dari data demografi, Baddeley Reasoning Test (BRT) untuk mengukur kecerdasan cairan, dan Diet History Questionnaire III (DHQ III) untuk mengetahui kebiasaan makan. Data pangan yang diperoleh diklasifikasikan berdasarkan sistem NOVA. Hasil penelitian menunjukkan fluid intelligence berkorelasi positif dengan total konsumsi kategori makanan yang cukup diproses. Jenis kelamin berkorelasi dengan total konsumsi makanan yang sangat diproses. Fluid intelligence tidak memiliki korelasi yang signifikan dengan usia dan jenis kelamin.
Keyword: eating habits, fluid intelligence, food processing, NOVA

Judul: Hubungan Kebiasaan Sarapan dan Status Hidrasi dengan Konsentrasi Belajar Mahasiswa Gizi IPB
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan kebiasaan sarapan dan status hidrasi dengan konsentrasi belajar mahasiswa gizi IPB. Desain penelitian ini adalah cross sectional study dengan jumlah subjek berjumlah 63 orang yang dipilih secara purposive sampling. Kebiasaan sarapan sebagian besar subjek tergolong rutin sarapan (58,7%) dan tingkat kecukupan energi, protein, lemak dan karbohidrat sarapan tergolong kurang. Rata-rata tingkat kecukupan cairan subjek tergolong normal dan status hidrasi sebagian besar subjek tergolong terhidrasi dengan baik (61,9%). Konsentrasi belajar sebagian besar subjek tergolong baik (55,6%). Tidak ada perbedaan signifikan antara kebiasaan sarapan dan tingkat kecukupan cairan laki-laki dan perempuan (p>0,05). Usia, status gizi, pendidikan orang tua, pendapatan orang tua, dan besar keluarga tidak ada hubungan dengan kebiasaan sarapan dan tingkat kecukupan cairan (p>0,05), namun besar keluarga berhubungan signifikan secara negatif dengan frekuensi sarapan (p=0,03;r=-0,269). Pengetahuan gizi subjek tidak ada hubungan dengan kebiasaan sarapan dan tingkat kecukupan cairan (p>0,05). Terdapat hubungan signifikan secara positif antara tingkat kecukupan energi (p=0,007;r=0,335), protein (p=0,032;r=0,270), lemak (p=0,016;r=0,302), dan karbohidrat (p=0,16;r=0,304) sarapan dan konsentrasi belajar, namun waktu dan frekuensi sarapan tidak berhubungan dengan konsentrasi belajar (p>0,05). Tidak terdapat hubungan signifikan antara status hidrasi dengan konsentrasi belajar (p=0,582;=r-0,71)., This study aimed to analyze the correlation between breakfast habits and hydration status with learning concentration among nutrition students at IPB University. Design of this study was cross sectional study with 63 subjects who were selected by purposive sampling. Breakfast habits in most subjects were classified as having breakfast regularly (58,7%) and had a deficit energy, protein, fat and carbohydrate adequacy level. The average level of the subject’s fluid adequacy was classified as adequate and hydration status in most of subjects were classified as hydrated (61,9%). Learning concentration in most of subjects were classified as good (55,6%). There were no significant difference between breakfast habits and fluid adequacy level among male and female (p>0,05). Age, nutritional status, parent education, family income, dan family size have no significant correlation with breakfast habits and fluid adequacy level (p>0,05), but family size have negatively significant correlation with breakfast frequency (p=0,03;r=-0,269). Nutritional knowledge has no correlation with breakfast habits and fluid adequacy level (p>0,05). There were positively significant correlation between energy (p=0,007;r=0,335), protein (p=0,032;r=0,270), fat (p=0,016;r=0,302), dan carbohydrate (p=0,16;r=0,304) adequacy level and learning concentration, but breakfast time and frequency have no correlation with learning concentration. There was no significant correlation between hydration status with learning concentration (p=0,582;=r-0,71).
Keyword: Breakfast habit, college students, hydration status, learning concentration

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition