Results 241 to 250 of about 45,773 (307)

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2021
Aims. Polyphenol oxidase (P.O), a ubiquitous enzyme in plants, is associated with browning and discoloration of breeding products such as pan bread, steamed bread, pasta, foodstuff of freezing dough. There are five genes that control the P.O activity: P.O-A1, P.O-D1, P.O-A2, P.O-B2 and P.O-D2. Genes P.O-A1, P.O-D1 can occur in several allelic variants:
openaire   +2 more sources

The Emergence and Future of Ppos

Journal of Health Politics, Policy and Law, 1986
A new development in the restructuring of American health care is the dramatic growth of preferred provider organizations (PPOs). Based on a national telephone survey, this paper assesses the future direction of PPOs by examining segments of the market that are believed to be lead indicators of future activity. It includes analyses of “new” versus “old”
J, Gabel   +3 more
openaire   +2 more sources

Ppos: The Employer Perspective

Journal of Health Politics, Policy and Law, 1989
This paper reports the results of a national survey on employer experiences with preferred provider organizations (PPOs). The survey, conducted in 1987, included information from almost 700 telephone interviews with employee benefit managers. We found that 11 percent of employees are in PPOs. PPOs now have a strong presence among employers of all sizes.
T, Rice, J, Gabel, G, de Lissovoy
openaire   +2 more sources

The Puzzling Popularity Of The PPO

Health Affairs, 2004
Surging growth in preferred provider organization (PPO) participation has been fueled by migration away from the undesirable features of health maintenance organizations (HMOs). While employers, consumers, and providers seem to know what it is they do not want from HMOs, the advantages offered by PPO design are not so clear.
Robert E, Hurley   +2 more
openaire   +2 more sources

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