Judul: Fruits and Vegetables Consumption,  Nutritional Status, and Quality of Life of Breast Cancer Patients in RSUD Kota  Bogor
Abstrak: Kanker payudara merupakan jenis kanker yang paling banyak diderita oleh perempuan di Indonesia. Seiring dengan meningkatnya prevalensi penyakit ini, perawatan suportif, diet, dan kualitas hidup menjadi aspek penting yang perlu diperhatikan untuk meningkatkan kelangsungan hidup pasien. Penelitian ini bertujuan mengidentifikasi dan menganalisis perbedaan konsumsi buah dan sayur, status gizi, serta kualitas hidup pasien kanker payudara di RSUD Kota Bogor. Desain penelitian ini adalah studi cross-sectional yang melibatkan 90 pasien kanker payudara rawat jalan yang dipilih dengan metode accidental sampling. Pengumpulan data dilakukan dengan wawancara berdasarkan SQ-FFQ, food recall, dan EORTC QLQ-C30. Data berat badan, tinggi badan, serta karakteristik klinis subjek diperoleh dari rekam medis. Hasil penelitian menunjukkan bahwa 51,1% subjek memiliki kualitas hidup kurang baik, dimana 82,2% diantaranya memiliki konsumsi buah yang tergolong cukup dan 74,4% diantaranya memiliki konsumsi sayur yang tergolong kurang. Tidak terdapat perbedaan yang signifikan pada kualitas hidup berdasarkan konsumsi buah dan sayur (p>0,05). Mayoritas subjek dengan kualitas hidup baik memiliki status gizi yang tergolong obesitas (45,5%). Hasil uji beda menunjukkan adanya perbedaan yang signifikan pada kualitas hidup berdasarkan status gizi (p=0,031). Subjek dengan status gizi sangat kurus dan kurus memiliki skor kualitas hidup yang lebih rendah dibandingkan subjek dengan status gizi normal, overweight, dan obesitas., Breast cancer is the most prevalent form of cancer among women in Indonesia. It is crucial to consider supportive care, diet, and quality of life to enhance patient survival as its prevalence increases. This cross-sectional study aimed to identify and analyze the differences in fruits and vegetables consumption, nutritional status, and quality of life of breast cancer patients in RSUD Kota Bogor. This cross-sectional study included 90 breast cancer outpatients that selected by accidental sampling method. Data were gathered through interviews based on SQ-FFQ, food recall, and EORTC QLQ-C30, while body weight, height, and clinical characteristics were obtained from medical records. The findings indicated that 51.1% of the subjects had a poor quality of life, with 82.2% having adequate fruits intake and 74.4% having insufficient intake of vegetables. There was no significant difference in the subject’s quality of life based on fruits and vegetables consumption. (p>0.05). Among subjects with a good quality of life, the majority had a nutritional status classified as obese (45.5%). There was a significant difference in the subject’s quality of life based on nutritional status (p=0.031), with undernourished subjects having lower quality of life scores compared to well-nourished, overweight, and obese subjects.
Keyword: fruits consumption, nutritional status, quality of life, vegetables consumption, breast cancer

Judul: Dietary Inflammatory Level and Nutritional Status of Breast Cancer Patients at RSUD Kota Bogor, Dietary Inflammatory Level and Nutritional Status of Breast Cancer Patients at RSUD Kota Bogor
Abstrak: Penelitian ini bertujuan menganalisis perbedaan antara kelompok stadium (stadium awal dan stadium lanjut) dalam hal tingkat inflamasi diet (skor Dietary Inflammatory Index/ DII) dan status gizi. Desain penelitian ini adalah cross-sectional study dengan menggunakan accidental sampling yang melibatkan 93 subjek di instalasi hematologi onkologi RSUD Kota Bogor pada periode penelitian. Pengumpulan data dilakukan dengan wawancara langsung menggunakan kuesioner dan rekam medis subjek. Hasil penelitian menunjukkan stadium kanker payudara subjek didominasi kategori advanced stage (82,8%). Rata-rata skor DII subjek adalah 1,857 (pro-inflamasi) dengan 76,3% subjek memiliki tingkat inflamasi diet yang bersifat pro-inflamasi. Status gizi subjek mayoritas dalam rentang IMT normal (40,9%). Tidak ditemukan perbedaan signifikan antara stadium awal dan stadium lanjut dalam hal skor DII (p-value=0,555), status gizi (p-value=0,637), dan IMT (p-value=0,676). Sementara itu, ditemukan korelasi negatif signifikan antara skor DII dengan tingkat pendapatan dan pendidikan, dengan masing-masing p-value=0,03 dan r=-0,225., This study aims to analyze the differences between the staging groups (early stage and advanced stage) in terms of dietary inflammation level (Dietary Inflammatory Index/DII score) and nutritional status. The design of this study was a cross-sectional study using accidental sampling involving 93 subjects at the hematology-oncology polyclinic at RSUD Kota Bogor during the study period. Data collection was carried out by direct interviews using questionnaires and the subject's medical records. The results showed that the subject's breast cancer stage was dominated by the advanced stage category (82,8%). The subject's average DII score was 1.857 (pro-inflammatory) with 76.3% of subjects having a pro-inflammatory diet inflammatory level. The nutritional status of the majority of subjects was within the normal BMI range (40.9%). There was no significant difference between early stage and advanced stage in terms of the DII score (p-value=0.555), nutritional status (p-value=0.637), and BMI (p-value=0.676). Meanwhile, a significant negative correlation was found between DII scores and levels of income and education, with p-value=0.03 and r=-0.225, respectively.
Keyword: breast cancer stage, Dietary Inflammatory Index (DII), nutritional status

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
Keyword: