What's the difference between harmful and useful?

Harmful


Definition:

  • (a.) Full of harm; injurious; hurtful; mischievous.

Example Sentences:

  • (1) Chapman and the other "illegals" – sleeper agents without diplomatic cover – seem to have done little to harm American national security.
  • (2) Bacterial lipopolysaccharides (LPS), which are important components of the cell wall of gram-negative bacteria, induce a number of host responses both beneficial and harmful.
  • (3) Robert Francis QC's official report in February on the Mid Staffordshire care scandal, in which an estimated 400 to 1,200 patients died unnecessarily at Stafford hospital between 2005 and 2008, called for the NHS to make "zero harm" its objective.
  • (4) I realise now that the drug is far less harmful then I believed at the time.
  • (5) Irrespective of method, the suicide attempt was predominantly a psychotic act of young single people with chronic, severe disorders and considerable past parasuicide, in a setting of escalating self-harm.
  • (6) Speaking to reporters at the Pentagon, People's Liberation Army's chief of the general staff Gen Fang Fenghui also warned that the US must be objective about tensions between China and Vietnam or risk harming relations between Washington and Beijing.
  • (7) Jails and prison populations are unique in the incidence of deliberate self-harm, but the phenomenon is not well understood.
  • (8) It’s been widely reported that black people are disproportionately harmed by the mortgage market.
  • (9) Repeat patients were more likely to threaten to harm others, have a diagnosis of adjustment disorder, conduct or oppositional disorder and be under the care of a child welfare agency.
  • (10) Considerations of different ways of obtaining informed consent, determining ways of minimizing harm, and justifications for violating the therapeutic obligation are discussed but found unsatisfactory in many respects.
  • (11) Judge John Burgess told the men that their intention was “to do great harm in a peaceful community”.
  • (12) Lack of transparency about the nature of the relationship between police and media also led to speculation and perceptions, whatever the facts, that caused "serious harm".
  • (13) The problem of the achondroplast arises when his surroundings, right from the start, reject his disorder, connoting it with destructive anxiety: this seriously harms the subject's physical image, making him an outcast.
  • (14) Religious efforts to address the issue have also been complicit in absolving men of their crimes, objectifying women and doing more harm than good with campaigns that blame women for the phenomenon.
  • (15) Both the observance of occupational limit-values for dusts and other harmful materials at the work place, which have effects on the respiration system, and the medical survey of workers with the use of special methods for examination of respiratory system are necessary.
  • (16) Changes in the fitness of harmful mutations may therefore impose a greater long-term disadvantage on asexual populations than those which are sexual.
  • (17) The possibility of being liable if an incompetent student becomes registered and causes harm is also discussed.
  • (18) Butler was convicted of grevious bodily harm and child cruelty, and sentenced to prison.
  • (19) Was the Dalkon Shield so harmful in the nulliparous woman?
  • (20) Education can increase compliance and sometimes modify harmful behavior.

Useful


Definition:

  • (a.) Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous; as, vessels and instruments useful in a family; books useful for improvement; useful knowledge; useful arts.

Example Sentences:

  • (1) Previous use of the drug is found in more than 50 per cent of the patients, and it was often followed by a neglected side-effect.
  • (2) These variants may serve as useful gene markers in alcohol research involving animal model studies with inbred strains in mice.
  • (3) Therefore, these findings may extend the use of platelets as neuronal models.
  • (4) All transplants were performed using standard techniques, the operation for the two groups differing only as described above.
  • (5) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
  • (6) It was tested for recovery and separation from other selenium moieties present in urine using both in vivo-labeled rat urine and human urine spiked with unlabeled TMSe.
  • (7) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
  • (8) A series of human cDNA clones of various sizes and relative localizations to the mRNA molecule were isolated by using the human p53-H14 (2.35-kilobase) cDNA probe which we previously cloned.
  • (9) We used the polymerase chain reaction (PCR) to amplify the breakpoint area of alpha-thalassemia-1 of Southeast Asia type and several parts of the alpha-globin gene cluster to make a differential diagnosis between alpha-thalassemia-1 and Hb Bart's hydrops fetalis.
  • (10) The liver metastasis was produced by intrasplenic injection of the fluid containing of KATOIII in nude mouse and new cell line was established using the cells of metastatic site.
  • (11) Spectral analysis of spontaneous heart rate fluctuations, a powerful noninvasive tool for quantifying autonomic nervous system activity, was assessed in Xenopus Laevis, intact or spinalized, at different temperatures and by use of pharmacological tools.
  • (12) The hypothesis that proteins are critical targets in free radical mediated cytolysis was tested using U937 mononuclear phagocytes as targets and iron together with hydrogen peroxide to generate radicals.
  • (13) Questionnaires were used and the respondent self-designation method measured leadership.
  • (14) At 36 h postsurgery, RBCs were examined by 23Na-NMR by using dysprosium tripolyphosphate as a chemical shift reagent.
  • (15) Biochemical, immunocytochemical and histochemical methods were used to study the effect of chronic acetazolamide treatment on carbonic anhydrase (CA) isoenzymes in the rat kidney.
  • (16) Use of the improved operative technique contributed to reduction in number of complications.
  • (17) Down and up regulation by peptides may be useful for treatment of cough and prevention of aspiration pneumonia.
  • (18) Our data suggest that a rational use of surveillance cultures and serological tests may aid in an earlier diagnosis of FI in BMT patients.
  • (19) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
  • (20) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.