Pratica di Shadowing: RCoA Primary Examination: SOE Physics Question Example - Impara a parlare inglese con i video

Creazione lezione...
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Okay, so can you tell me how is heat lost during anaesthesia and surgery?
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Okay, so heat loss.
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Is there a way for a diagram to explain this?
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So you've got the patient on the operating table.
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I'll draw that quickly.
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Now, the main way in which heat is lost in an anaesthetic is through radiation, the infrared radiation, and that counts for 40%.
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Then convection currents count for 30%, whereby warm air is moved away from the body,
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aided by laminar flow and moving heat away from the body that way.
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then a further 15% is lost through evaporation through the energy of latent heat of vaporisation.
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Respiration accounts for approximately 10%
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which can be broken down into 8% for latent heat of vaporisation of the gases and 2% of heating the inhaled gases.
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There is a further small amount of heat lost through conduction through solid services such as the operating theatre
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and through IV fluids into the patient.
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Okay, alright let's come back to this 40% that you described of radiation.
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Can you tell me what factors affect the amount of heat loss through radiation?
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OK, so there's a number of factors.
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The first which is the absolute temperature.
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Stefan Boltzmann gives an equation where...
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OK, don't go into detail of the equation.
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What's the important point about that law?
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So the emissive radiation is proportional to a power of 4, the absolute temperature.
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So therefore the hotter the body is, the greater the temperature loss through that body is.
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The other ways in which heat is lost through radiation, the temperature difference between the body and the surrounding areas, the exposure of the body,
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so the exposure of the patient, then the amount of insulation the body has,
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so if they're wearing blankets or clothing or body fat, will reduce heat loss.
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And lastly, the amount of degree of vasodilation, so that the more vasodilated the patient is, the more blood flow there is to the skin,
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and the greater radiated heat is lost through that.
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OK, all right.
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Let's think about what actually goes on during an anesthetic now.
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So what are the phases of heat loss during anesthetic?
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Is it all lost at the same time?
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Or what happens?
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OK, do I draw a graph?
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Yeah, do.
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So the graph for heat loss, I'll do time in hours at the bottom,
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start at 0, and temperature in Celsius.
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The curve essentially looks like this.
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So in the first hour to two hours, you have rapid heat loss of one to five degrees
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which is accounted for by redistribution of blood and between there
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and the next five hours temperature loss decreases and after which temperature plateaus to a fairly stable level.
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Okay thank you.
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That was a pass for that candidate.
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They were able to show a detailed knowledge coupled with a good understanding of the subject.
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And were able to complement their answer by the use of diagrams and graphs and also the use of an equation.
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Diagrams generally are not compulsory.
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They need to add to the answer rather than just being the answer.
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And occasionally in the exam you will be given an artefact or a diagram already in which to base your answer upon.
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If you choose to use a diagram, it's important that you make them as large as you can, make them clear and relevant to the question you're being asked,
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not just the diagram because you happen to remember it.
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It's also important to use the time whilst you're drawing the diagram to help answer the question.
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Don't draw the diagram and then answer the question.
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The two need to be used at the same time.
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It's also helpful if it looks like it's not the first time you've drawn the diagram.
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Graphs too need to be along the same lines, they need to be labelled and you need to think about whereabouts your line goes on the graph.
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Does it go through the zero point or not, where does it actually fit?
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So in summary that was a well structured answer, able to show knowledge and understanding well and used graphs and diagrams appropriately.
📺 Stesso Canale
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Obiettivi di parlato per questo video

Questo clip è perfetto per chi vuole migliorare la pratica di conversazione in inglese in contesti tecnici, come la medicina. L'obiettivo? Imparare a spiegare concetti complessi con chiarezza, usando diagrammi e esempi. È un ottimo modo per lavorare sulla fluidità e sulla capacità di organizzare le idee, fondamentali per superare esami o comunicare in ambiti professionali. Inoltre, la struttura del dialogo (domande e risposte dettagliate) aiuta a esercitare l'ascolto attivo e la replica immediata, una tecnica chiamata shadow speak o shadowspeaks.

Banca di frasi riutilizzabili

  • "Can you tell me how..." (Puoi dirmi come...)
  • "The main way in which... is through..." (Il principale modo in cui... è attraverso...)
  • "That counts for..." (Questo rappresenta...)
  • "Which can be broken down into..." (Che può essere suddiviso in...)
  • "There is a further small amount of..." (C'è un'altra piccola quantità di...)
  • "What factors affect the amount of..." (Quale fattori influenzano la quantità di...)
  • "The curve essentially looks like this" (La curva in sostanza è come questa)

Queste frasi sono utili non solo per argomenti scientifici, ma anche per esporre qualsiasi tipo di informazione in modo strutturato.

Correggi i tuoi punti deboli

Il video aiuta a lavorare su due aspetti chiave: la migliorare la pronuncia inglese di termini tecnici (come "radiation", "convection", "vasodilation") e il ritmo della conversazione. Nota come il candidato usa pause brevi per organizzare le idee ("OK, so...", "Then...") e come la pronuncia delle parole lunghe è chiara ma non eccessivamente veloce. Per esercitarti, usa la tecnica del shadow speak: ripeti le frasi del video immediatamente dopo averle sentite, cercando di imitare il tono e il ritmo. Questo aiuta a rafforzare la memoria muscolare e a rendere la tua pronuncia più naturale. Inoltre, la discussione su diagrammi e grafici ti insegna a descrivere visivamente concetti, unaabilità cruciale per la pratica di conversazione in inglese in contesti professionali. Non dimenticare: anche i dettagli come la chiarezza dei disegni (o delle descrizioni) contano per comunicare efficacemente!

Imparare l'inglese con YouTube non è mai stato così pratico: questo video combina apprendimento tecnico e miglioramento della lingua, offrendo un contesto reale per esercitarti. Prova a ripetere il dialogo più volte, e noterai come la tua confidenza e la tua fluidità aumentino!

Cos'è la tecnica dello Shadowing?

Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.

Tecnica dello shadowing: leggi la guida completa passo dopo passo →