Judul: Identifikasi Varietas Durio Zibethinus Berdasarkan Sebaran Trikoma Daun Menggunakan GLCM dan KNN
Abstrak: Durio zibethinus known as Durian is a family of Bombacaceae, that can also be categorized into Malvaceae with genus name Durio. The objectives of this research is to apply the Gray Level Co-occurrence Matrix (GLCM) feature extraction in trichomes image of durian leaf and identify 10 varieties of Durio zibethinus. This image si captured using microscope camera digital Dino Lite. Trichomes image is captured with 200 times magnification and produce 640x480 pixels of image with BMP format. The initial process is to change Red, Green, Blue (RGB) image into grayscale, followed by performing feature extraction with GLCM. K-fold cross validation with 5-fold is used to divide the training data and testing data. Classification is performed using the K-Nearest Neighbor (KNN). It is found that the highest accuracy is 78% at 3 clusters, GLCM's angle 90° and 1 pixel distance
Keyword: Trichomes., K-Nearest Neighbor (KNN), K-Fold Cross Validation, Gray Level Co-occurrence Matrix (GLCM)

Judul: Identifikasi Varietas Durian Berdasarkan Citra Daun Menggunakan K-Nearest Neighbor dengan Ekstraksi Tekstur Co-occurrence Matrix
Abstrak: Durian (Durio zibethinus Murray) is the name of tropical plant from Southeast Asia. The diversity of durian and the physical similarities between them have caused difficulty to identify durian. This research developed a system to identify durian by using co-occurrence matrix as the feature extraction and K-NN as the classifier based on durian leaf texture. This research used 9 variety of durians and each variety has 10 leaf images. The result of this research showed that the cropping of images and selection of texture features can improve the performance identification. The best accuracy in this research was 74.44% that was obtained when K = 5, angle = 450, and distance = 2 pixels. This accuracy was achieved by using five leaf texture features, namely contrast, entropy, information measures of correlation 1, sum average, and sum entropy.
Keyword: texture, K–Nearest Neighbor (K–NN), durian, co-occurrence matrix

Judul: Studi literatur: Pengaruh Konsumsi Whey Protein terhadap Massa Otot Penderita Sarcopenia
Abstrak: Seiring dengan berjalannya waktu, massa otot dan kekuatan otot manusia akan menurun, dan kondisi ini dipercepat setelah memasuki umur 65 tahun. Melemahnya otot-otot rangka, atau dikenal dengan istilah „Sarcopenia‟, akan membuat lansia kesulitan untuk beraktivitas, beresiko patah tulang, bahkan kematian. Asupan protein sangat penting untuk mencegah dan mengobati sarcopenia, salah satu sumber protein terbaik adalah whey protein (WP). Studi ini bertujuan mengidentifikasi pengaruh konsumsi WP terhadap massa otot penderita sarcopenia dan menerangkan peran WP dalam mekanisme pembentukan otot serta faktor yang mempengaruhinya. Desain penelitian ini berupa studi literatur, dengan analisis data menggunakan metode kualitatif systematic review. WP meningkatkan sintesis protein otot (MPS) dan anabolisme otot, dengan kata lain, WP mampu meningkatkan massa otot lansia penderita sarcopenia. Asam amino rantai cabang (BCAAs) dan asam amino (AA) lainnya dalam WP merupakan kunci dalam pengaktifan mTOR dan sintesis protein otot melalui jalur sinyal GATOR-2 – Reg A/B dan Reg C/D - mTOR- P70S6K dan 4EBP. Konsumsi WP diiringi dengan latihan beban (RT) memberikan pengaruh yang lebih baik terhadap massa, kekuatan, dan kesehatan otot lansia penderita sarcopenia. Kata kunci: anabolisme otot, latihan beban, massa otot, sintesis protein otot, whey protein., Over time, human muscle mass and muscle strength will decrease, and the condition accelerates after entering the age of 65 years. Weakening of skeletal muscles, otherwise known as 'Sarcopenia', will make it difficult for the elderly to do activities, risk of fractures, even death. Protein intake is essential for preventing and treating sarcopenia, one of the best protein sources is whey protein (WP). This study was aimed to identify the influence of WP consumption on the muscle mass of sarcopenia sufferers, and explain the role of WP in the mechanism of muscle formation as well as the factors that affect it. The design of this research is a literature study, with data analysis using qualitative systematic review method. WP increases muscle protein synthesis (MPS) and muscle anabolism, in other words, WP is able to increase the muscle mass of elderly sarcopenia sufferers. Branched chain amino acids (BCAAs) and other amino acids (AA) in WP are key in the activation of mTOR and synthesis of muscle proteins through the signal pathways GATOR-2 – Reg A/B and Reg C/D - mTOR- P70S6K and 4EBP. WP consumption accompanied by resistance (weight) training (RT) gives a better influence on the mass, strength, and muscle health of elderly with sarcopenia. Keywords: muscle anabolism, muscle mass, muscle protein synthesis, resistance training, whey protein.
Keyword: muscle anabolism, muscle mass, muscle protein synthesis, resistance training, whey protein