Judul: Pengaruh Pemberian Purified Diet Defisien Kalsium yang Disuplementasidengan Inulin Terhadap NeracaKalsium Tikus PutihSpraguedawley (Rattus Norvegicus)
Abstrak: This study was aimed to evaluate calcium balance and effect of inulin suplementation on white rats (Sparague dawley) fed purified dietdeficiency calcium with or without inulin. This study used 12 female white rats (Sprague dawley) aged more than 15 months were maintained over 2 months. The study using Completely Randomized design with 3 treatments and 4 replications.1) control purified diet, 2)calcium deficiencypurified diet, and 3) calcium deficiencypurified dietsuplemented with inulin. Treatment was conducted for 2 months, and every morning feeds residual were weighed. To evaluate dry matter digestibility and calcium balance, blood and feces was sampled for five days prior to the end of the experiment. Plasma calcium was analyzed using O-C FAST®kit. Calcium concentrations in feces, femur bone, liver and kidney were analyzed using wet ashing method and read using AAS (Atomic Absorption Spectrophotometer). The results showed that dry matter intake, daily body weight gain, calcium of femur bone, kidney and liver were not significantly different among the treatments. Calcium intake, calcium in the feces and calcium in the plasma of control treatment significantly higher (P<0.01)than in calcium deficiencypurified diet. Supplementation 2.20% of inulinoncalciumdeficiencypurified dietable toincrease the calciumabsorbtionandthere is anincreasingofcalcium retention in bone about 11.35%.
Keyword: Rattus norvegicus, calcium balance, inulin

Judul: Neraca Kalsium pada Hewan Model Tikus Putih Rattus novergicus Kondisi Defisiensi Kalsium
Abstrak: Animal models are deliberately kept to be used as experimental animals, it can be used as a model to evaluate diet, drugs, active compounds and feed supplements. Animal models with calcium deficiency is an animal which have serum or plasma calcium lower than in normal condition. This research was aimed to evaluate calcium balance of rats (Rattus norvegicus) in deficiency of calcium. Variables measured were feed and calcium intake, calcium of feces, calcium absorption, plasma calcium, calcium of bone, calcium in the liver, and kidney and daily weight gain. Data were analyzed descriptively. The results showed that there were not significant different between control and calcium deficiency diet groups for all parameters, except plasma calcium of the rat fed control diet higher than that of the rat fed deficiency calcium diet. It was concluded that plasma calcium of rat fed calcium deficiency diet was low due to the low calcium intake so that become homeostasis process in whole body. Rats as animal model of calcium deficiency has lower calcium plasma of 33%.
Keyword: homeostasis, calcium deficiency, calcium balance, Animal models

Judul: Bisnis Fotografi Snapcash : Platform Digital.
Abstrak: Fotografi merupakan bagian gaya hidup masyarakat saat ini. Namun hingga saat ini belum ada platform digital yang menawarkan jasa fotografi. Ide bisnis Snapcash diciptakan sebagai solusi berupa platform digital yang dapat digunakan oleh fotografer untuk mencari pekerjaan dan konsumen untuk mencari jasa fotografi. Penelitian dilakukan untuk mengetahui permasalahan konsumen, menciptakan solusi yang tepat, dan merumuskan model bisnis yang sesuai untuk Snapcash. Metode yang digunakan adalah deskriptif kualitatif dengan pendekatan customer discovery. Pengumpulan data dilakukan secara non probability purposive sampling. Hasil pengujian masalah menunjukkan kesulitan fotografer dalam mendapatkan pelanggan dan kesulitan konsumen dalam menemukan fotografer yang sesuai kriteria. Solusi yang ditawarkan adalah aplikasi dan fitur yang ada didalamnya. Berdasarkan uji solusi yang dilakukan, solusi yang ditawarkan diterima oleh responden sehingga menjadi solusi bagi responden penelitian. Model bisnis Snapcash terverifikasi berdasarkan tiga aspek yaitu kesesuaian produk dengan pasar, segmen pelanggan dan cara mencapainya, serta cara perusahaan menghasilkan uang.
Keyword: customer discovery, fotografi, model bisnis, platform digital