Universal Product Code

Known as: UPC 
 
National Institutes of Health

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2012
Highly Cited
2012
This project presents a method to operate a grid connected hybrid system. This system composed by Photo Voltaic (PV) array and a… (More)
  • figure V
Is this relevant?
2012
2012
BACKGROUND Chronic kidney disease (CKD) is common in geriatric cats, but often appears to be stable for long periods of time… (More)
  • table 1
  • table 2
  • table 4
  • table 3
  • table 5
Is this relevant?
Highly Cited
2010
Highly Cited
2010
This paper describes the active power and frequency-control principles of multiple distributed generators (DGs) in a microgrid… (More)
  • figure 1
  • figure 4
  • figure 2
  • figure 3
  • table I
Is this relevant?
Highly Cited
2009
Highly Cited
2009
This study describes qualitatively distinct trajectories of BMI change among girls participating in a longitudinal study of non… (More)
Is this relevant?
Highly Cited
2005
Highly Cited
2005
Mothers of children with cancer experience significant distress associated with their children's diagnosis and treatment. The… (More)
Is this relevant?
Highly Cited
2004
Highly Cited
2004
Nonviral gene delivery systems based on conventional high-molecular-weight chitosans are efficient after lung administration in… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • table 1
Is this relevant?
Highly Cited
2001
Highly Cited
2001
Chitosan is a natural cationic linear polymer that has recently emerged as an alternative nonviral gene delivery system. We have… (More)
  • table 1
  • figure 1
  • figure 2
  • figure 3
  • figure 4
Is this relevant?
Highly Cited
1999
Highly Cited
1999
The clinical features and survival times of patients with unknown primary carcinoma (UPC) are heterogeneous. Therefore, the goals… (More)
  • table 2
  • table 1
  • table 3
  • figure 1
  • figure 2
Is this relevant?
Highly Cited
1997
Highly Cited
1997
BACKGROUND The purpose of this study was to evaluate the measurement properties of an instrument developed to measure seven key… (More)
Is this relevant?
Highly Cited
1994
Highly Cited
1994
PURPOSE To evaluate the natural history, validate previous observations, and identify prognostic factors in patients with unknown… (More)
Is this relevant?