We are becoming more and more dependent on machine to function in the modern world.To what extent do you agree or disagree?

Alongside manganese, copper is another trace element that regardless of its unquestionable antibacterial attribute together with its effective role in many biological processes, it has been proven that doping copper ions into a bioactive
glass
equips the
glass
with a great photothermal performance. To have a holistic understanding of the basis of the photothermal phenomenon, it is worth noting that dopant ions
such
as transition metals or other elements within the vitreous structure act as optical sites that re-emit the absorbed light through radiative and non-radiative decays. The latter one is responsible for heat generation. Increasing the number of these optical sites inside the
glass
results in greater generated thermal energy which means better photothermal performance. In relation to the wavelength of the input
laser
Correct your spelling
layer
show examples
, it should be presented in the
first
and
second
biological windows, ranging from 700 nm to 950 nm and from 1000 to 1350, respectively. In order to both maximize radiation penetration into the tissue and optimize the light absorption of the inserted
glass
in the targeted tissue, an 808 nm laser has been chosen in the majority of studies.
On the other hand
, the presence of an exceeding amount of trace elements inside the body, despite their influential role in maintaining the health of organs, is associated with the probability of toxicity.
For example
, a decrease in pre-osteoblastic proliferation with increasing Mn concentration has been reported while doping β-tricalcium phosphate with 5%molar or higher manganese, as well as, bioglasses doped with a relatively high amount of copper were reported to have an inhibitory effect on the growth of different types of cells in comparison with undoped samples.
This
is
in contrast
with the mechanism of the photothermal effect in glasses.
In other words
, the composition of the
glass
should contain the appropriate type and amount of dopants so that the obtained
glass
not only does enjoy a high photothermal conversion performance but
also
avoid causing any cytotoxicity inside the host tissue.
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Include an introduction and conclusion

A conclusion is essential for IELTS writing task 2. It is more important than most people realise. You will be penalised for missing a conclusion in your IELTS essay.

The easiest paragraph to write in an essay is the conclusion paragraph. This is because the paragraph mostly contains information that has already been presented in the essay – it is just the repetition of some information written in the introduction paragraph and supporting paragraphs.

The conclusion paragraph only has 3 sentences:

  • Summary
  • Restatement of thesis
  • Prediction or recommendation

Example:

To summarize, a robotic teacher does not have the necessary disciple to properly give instructions to students and actually works to retard the ability of a student to comprehend new lessons. Therefore, it is clear that the idea of running a classroom completely by a machine cannot be supported. After thorough analysis on this subject, it is predicted that the adverse effects of the debate over technology-driven teaching will always be greater than the positive effects, and because of this, classroom teachers will never be substituted for technology.

Start your conclusion with a linking phrase. Here are some examples:

  • In conclusion
  • To conclude
  • To summarize
  • Finally
  • In a nutshell
  • In general

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