The Warning on Saturated Fat: From Defective Experiments to Defective Guidelines

Defective fat storage

Like baby chicks, stem cells need a nest—a niche within the body where they reside and self-renew. Oguro et al. (page < A r t R e f v o l = " 2 0 3 " I s s = " 1 0 " > 2247< / A r t R e f >) find that, for blood stem cells, this nest is built by the same gene silencer that also helps them self-renew. This silencer is Bmi1, which turns off two cell cycle inhibitor genes, Ink4a and Arf, to promot...

Imperfect and defective outputs in production process

Polarizing beam-splitter based on defective photonic crystals

The performance of a polarizing beam splitter based on the one-dimensional photonic crystals (1D-PCs), is theoretically investigated. The polarizing beam splitter consists of a symmetric stack of the low-index quarter-wave plates and the high-index half-wave plates with a central defect layer of air. The linear transmission properties of the polarizing beam splitter are numerically simulat...

An Integrated Inventory Model with Controllable Lead time and Setup Cost Reduction for Defective and Non-Defective Items

In this paper, the study deals with the lead time and setup reduction problem in the vendor-purchaser integrated inventory model. The cost of capital (i.e., opportunity cost) is one of the key factors in making the inventory and investment decisions. Lead time is an important element in any inventory system. The proposed model is presents an integrated inventory model with controllable lead tim...

Optimal lot sizing in screening processes with returnable defective items

This paper is an extension of Hsu and Hsu (Int J Ind Eng Comput 3(5):939–948, 2012) aiming to determine the optimal order quantity of product batches that contain defective items with percentage nonconforming following a known probability density function. The orders are subject to 100 % screening process at a rate higher than the demand rate. Shortage is backordered, and defective items...