of customer returns, those returns initiated by a customer or user and/or as a result of consumption/use, in the large extent). Again there is a variety of reasons to return the products
• reimbursement guarantees;
• warranty returns;
• service returns (repairs and spare-parts);
• end-of-use;
• end-of-life;
The reasons have been listed more or less accord
1. What are anabolic steroids?
(1) Definition and structure of anabolic steroids
Anabolic steroids - or more precisely, anabolic-androgenic steroids are synthetic derivatives of testosterone.
The effects of anabolic-androgenic steroids mimic those of testosterone. Natually synthesized hormones, such as testosterone, are types of lipids. they have a four-ring carbon skeleton and are synthe
Definition and Biochemistry
of Lectins
Structure : Origin protein + 탄수화물 (ligand)
· Sources of lectins : Animals, plants, bacteria
· Grouping ; by their preferential binding to the type
D-pyranose sugars
by dependent ; C-type or S-type
Lectin as Diagnostic Probes
Binding specificities
Ex ) Covavlin A(Con A) – Gluc
of feedback and advantages for each respective method. For our study, our group decided to focus on the comparison among certain feedback methods to come to a potential conclusion on which can be the most effective for L2 learners. The questions which this paper seeks to answer are as follows: Does negative feedback have an impact on acquiring L2 skills, and between the useof echo questions and