Motivated by both classroom needs and learning science questions, we developed two computer-based systems to help students learn the English article system (a, an, the, null). The first system, a menu-based task, mimics cloze activities found in many ESL textbooks. The second, a controlled-editing task, gives students practice with both detecting errors and producing the correct response. Resul...

This study proposes a single-supplier, singleretailer inventory and pricing strategies for deteriorating items with ramp type demand and a fixed shelf-life under shortage. In practice, there are many commodity such as food, medication exist the shelf life. Therefore the shelf life expiration date has become an important research topic in inventory management. We will discuss three cases. We ass...

Enrichment of food products with proteins, minerals and dietary fiber is possible by introducing grinding some cereal crops into wheat flour, i.e. obtaining composite flour mixtures. To date, there a need to enrich essential fatty acids, especially Linolenic acid (w-3), the deficiency which leads serious disruptions in functioning human body. Analysis lipid composition various oilseed shows tha...

This experiment was carried out to increase the shelf life and maintaining the quality of mango (Mangifera indica) fruits. There were two factors. Factor A: postharvest treatments with six levels (1. untreated (control), 2. washing with chlorine, 3. dipping (5 minutes) in calcium chloride (CaCl2), 4. dipping (5 minutes) in bavistin and rinse in clean water, 5. hot water treatment and 6. tap wat...

Background: Antioxidant activities of plant extracts are being studied to increase the shelf life of fish products. Some plants such as Urtica dioica L. (nettle) can be a good source of antioxidants. The objective of this study was to evaluate the effects of hydroalcoholic and water extracts of nettle leaf on the chemical properties of superchilled minced meat of the common kilka fish (Clupeone...