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1) methane is less harmful than CO2 when it comes to heat trapping. 2) goats, sheep and cows account for 25% of the world’s methane emissions. 3) the population of cows outnumbers that of goats or of sheep. 4) the population of humans exceeds that of all animals on the planet. 5) methane is more dangerous for the planet than carbon dioxide gas.
The correct alternatives are:
Read the text below and answer the following question based on it.
According to the graphic, it is true to assert that
The findings suggest that students’ well-being also
depend on their teachers’
Read the text below and answer the following question based on it.
Natural tooth repair method, using Alzheimer's drug, could revolutionise dental treatments
A new method of stimulating the renewal of living stem cells in tooth pulp using an Alzheimer’s drug has been discovered by a team of researchers at King’s College London.
Following trauma or an infection, the inner, soft pulp of a tooth can become exposed and infected. In order to protect the tooth from infection, a thin band of dentine is naturally produced and this seals the tooth pulp, but it is insufficient to effectively repair large cavities. Currently dentists use manmade cements or fillings, such as calcium and silicon-based products, to treat these larger cavities and fill holes in teeth. This cement remains in the tooth and fails to disintegrate, meaning that the normal mineral level of the tooth is never completely restored.
However, in a paper published today in Scientific Reports, scientists from the Dental Institute at King’s College London have proven a way to stimulate the stem cells contained in the pulp of the tooth and generate new dentine in large cavities, potentially reducing the need for fillings or cements.
The novel biological approach could see teeth use their natural ability to repair large cavities rather than using cements or fillings.
Significantly, one of the small molecules used by the team to stimulate the renewal of the stem cells included Tideglusib, which has previously been used in clinical trials to treat neurological disorders including Alzheimer’s disease.
Using biodegradable collagen sponges to deliver the treatment, the team applied low doses of small molecule glycogen synthase kinase (GSK-3) inhibitors to the tooth. They found that the sponge degraded over time and that new dentine replaced it, leading to complete, natural repair. Collagen sponges are commercially-available and clinicallyapproved, again adding to the potential of the treatment’s swift pick-up and use in dental clinics.
Disponível em:
Read the text below and answer the following question based on it.
Natural tooth repair method, using Alzheimer's drug, could revolutionise dental treatments
A new method of stimulating the renewal of living stem cells in tooth pulp using an Alzheimer’s drug has been discovered by a team of researchers at King’s College London.
Following trauma or an infection, the inner, soft pulp of a tooth can become exposed and infected. In order to protect the tooth from infection, a thin band of dentine is naturally produced and this seals the tooth pulp, but it is insufficient to effectively repair large cavities. Currently dentists use manmade cements or fillings, such as calcium and silicon-based products, to treat these larger cavities and fill holes in teeth. This cement remains in the tooth and fails to disintegrate, meaning that the normal mineral level of the tooth is never completely restored.
However, in a paper published today in Scientific Reports, scientists from the Dental Institute at King’s College London have proven a way to stimulate the stem cells contained in the pulp of the tooth and generate new dentine in large cavities, potentially reducing the need for fillings or cements.
The novel biological approach could see teeth use their natural ability to repair large cavities rather than using cements or fillings.
Significantly, one of the small molecules used by the team to stimulate the renewal of the stem cells included Tideglusib, which has previously been used in clinical trials to treat neurological disorders including Alzheimer’s disease.
Using biodegradable collagen sponges to deliver the treatment, the team applied low doses of small molecule glycogen synthase kinase (GSK-3) inhibitors to the tooth. They found that the sponge degraded over time and that new dentine replaced it, leading to complete, natural repair. Collagen sponges are commercially-available and clinicallyapproved, again adding to the potential of the treatment’s swift pick-up and use in dental clinics.
Disponível em:
Read the text below and answer the following question based on it.
Natural tooth repair method, using Alzheimer's drug, could revolutionise dental treatments
A new method of stimulating the renewal of living stem cells in tooth pulp using an Alzheimer’s drug has been discovered by a team of researchers at King’s College London.
Following trauma or an infection, the inner, soft pulp of a tooth can become exposed and infected. In order to protect the tooth from infection, a thin band of dentine is naturally produced and this seals the tooth pulp, but it is insufficient to effectively repair large cavities. Currently dentists use manmade cements or fillings, such as calcium and silicon-based products, to treat these larger cavities and fill holes in teeth. This cement remains in the tooth and fails to disintegrate, meaning that the normal mineral level of the tooth is never completely restored.
However, in a paper published today in Scientific Reports, scientists from the Dental Institute at King’s College London have proven a way to stimulate the stem cells contained in the pulp of the tooth and generate new dentine in large cavities, potentially reducing the need for fillings or cements.
The novel biological approach could see teeth use their natural ability to repair large cavities rather than using cements or fillings.
Significantly, one of the small molecules used by the team to stimulate the renewal of the stem cells included Tideglusib, which has previously been used in clinical trials to treat neurological disorders including Alzheimer’s disease.
Using biodegradable collagen sponges to deliver the treatment, the team applied low doses of small molecule glycogen synthase kinase (GSK-3) inhibitors to the tooth. They found that the sponge degraded over time and that new dentine replaced it, leading to complete, natural repair. Collagen sponges are commercially-available and clinicallyapproved, again adding to the potential of the treatment’s swift pick-up and use in dental clinics.
Disponível em:
The correct alternatives are:
I. When teaching writing to children, telling them that they’ll have an audience is not very important. II. The easiest activity to teach is reading, because the strategies are well known by children. III. Grammar concepts are better understood when taught separately, apart from texts.
Which ones are INCORRECT?
I. Without affecting the meaning, it could be adequately replaced by ‘and then’. II. It is classified as a conjunction. III. It could be removed without affecting the meaning.
Which ones are INCORRECT?
I. we teachers are often asked (l.01). II. The teaching of reading is not easy (l.15). III. how these skills are used (l.20). IV. Punctuation rules and techniques are drawn from shared texts (l.40-41).
Which ones are in the passive voice?
I. a short question that follows a statement. II. affirmative-negative (Mary was sad, wasn’t she?) or negative-affirmative (Mary wasn’t sad, was she?). III. uttered with a rising intonation when the speaker wants the listener to agree with him, without expecting an answer; however, when it is uttered with a falling intonation, the speaker is asking a real question, and needs an answer.
Which ones are correct?
I. ‘them’ (l.32) refers to ‘This process’ (l. 31). II. ‘we’ (l.36) refers to ‘all learning styles’ (l.36). III. ‘them’ (l.40) refers to ‘grammar concepts’ (l.39). IV. ‘they’ (l.40) refers to ‘Children’ (l.39).
Which ones are correct?
Column 1 1. To indicate an omission of letters or numbers.
2. To show possession.
Column 2 ( ) Line 06. ( ) Line 10 (1 st occurrence). ( ) Line 12. ( ) Line 15. ( ) Line 31. ( ) Line 40.
The correct order of filling in the parenthesis, from the top to the bottom, is:
“Pupils can choose from an exciting array of reading material” (l.26-27).
I. ‘can’ could be replaced by ‘are going to’ without affecting the meaning. II. The question form of the sentence is “Do pupils can choose from an exciting array of reading material?”. III. To form a negation, you only need to insert the word ‘no’ after ‘can’.
Which ones are INCORRECT?
I. Replacement of ‘purpose’ (l.10) by ‘intention’. II. Omission of ‘explicitly’ (l.17). III. Replacement of ‘stick’ (l.37) by ‘thrust’.
Which ones are correct?
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