viable but nonculturable

Examples of viable but nonculturable in the following topics:

• Unclassified and Uncultured Bacteria

  • These methods also allow the detection and identification of "viable but nonculturable" cells that are metabolically active but non-dividing, which can be applied to isolates of bacterial species that cannot be cultured.

• The Biological Species Concept

  • A species is defined as a group of individuals that, in nature, are able to mate and produce viable, fertile offspring.
  • A species is a group of individual organisms that interbreed and produce fertile, viable offspring.
  • Different species may have different genes that are active in development; therefore, it may not be possible to develop a viable offspring with two different sets of directions.
  • In other words, sexually-reproducing organisms can experience several genetic changes in their body cells, but if these changes do not occur in a sperm or egg cell, the changed trait will never reach the next generation.
  • The (a) African fish eagle is similar in appearance to the (b) bald eagle, but the two birds are members of different species.

• The Resource-Based View

  • In the resource-based view (RBV), strategic planning uses organizational resources to generate a viable strategy.
  • The VRIN characteristics mentioned are individually necessary, but each is insufficient on its own to sustain competitive advantage.
  • Within the framework of the RBV, the chain is as strong as its weakest link, and therefore requires the resource to display each of the four characteristics to be a viable strategy for competitive advantage.

• Origins of Antimicrobial Drugs

  • Before penicillin became a viable medical treatment in the early 1940s, no true cure for gonorrhea, strep throat, or pneumonia existed.
  • Before penicillin became a viable medical treatment in the early 1940s, no true cure for gonorrhea, strep throat, or pneumonia existed.
  • This definition excluded substances that kill bacteria, but are not produced by microorganisms (such as gastric juices and hydrogen peroxide).

• Fertilization

  • A zygote that has more than two sets of chromosomes will not be viable; therefore, to ensure that the offspring has only two sets of chromosomes, only one sperm must fuse with one egg.
  • Fusion between the oocyte plasma membrane and sperm follows and allows the sperm nucleus, centriole, and flagellum, but not the mitochondria, to enter the oocyte.
  • The resulting embryo is not genetically viable and dies within a few days.

• Porter's Competitive Strategies

  • That is, the category scheme was displayed as a 3x3x3 cube; however, most of the twenty-seven combinations were not viable.
  • Empirical research on the profit impact of marketing strategy indicates that firms with a high market share are often quite profitable, but so are many firms with low market share.
  • Porter explains that firms with high market share are successful because they pursue a cost-leadership strategy, and firms with low market share are successful because they employ market segmentation or differentiation to focus on a small but profitable market niche.
  • Firms in the middle are less profitable because of the lack of a viable generic strategy.

• Choosing a Version Control System

  • But Git-at-GitHub is not the only viable combination.

• Ectopic Pregnancy

  • With rare exceptions, ectopic pregnancies are not viable.
  • Most ectopic pregnancies occur in the Fallopian tube (so-called tubal pregnancies), but implantation can also occur in the cervix, ovaries, and abdomen.
  • While a fetus of ectopic pregnancy is typically not viable, very rarely, a live baby has been delivered from an abdominal pregnancy.
  • This is generally bowel or mesentery, but other sites, such as the renal (kidney), liver or hepatic (liver) artery or even aorta have been described.
  • When hCG levels continue to rise after the removal of the ectopic pregnancy, there is the chance that a pregnancy inside the uterus is still viable.

• Synthetic Antimicrobial Drugs

  • Antimicrobials include not just antibiotics, but synthetically formed compounds as well.
  • Before penicillin became a viable medical treatment in the early 1940s, no true cure for gonorrhea, strep throat, or pneumonia existed.
  • Antimicrobial nanotechnology is a recent addition to the fight against disease-causing organisms, replacing heavy metals and toxins, and may some day be used as a viable alternative.

• Evaluating Market Segments

  • Segmentation involves classifying people into homogeneous groupings and determining which of these segments are viable target markets.
  • This can provide a differential advantage over other organizations that market to this segment but do not concentrate all their efforts on it.