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3.01 Vocat
Quiz by Tara Floyd
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Of the 7 billion people on Earth roughly 0:02 6 billion own a cell phone which is 0:05 pretty shocking given that only 4 and2 0:07 billion have access to a working toilet 0:09 so how are these popular gadgets 0:11 changing your body and brain If you're 0:13 looking down at your phone right now 0:15 your spine angle is equivalent to that 0:17 of an 8-year-old child sitting on your 0:19 neck which is fairly significant 0:21 considering people spend an average of 0:23 4.7 hours a day looking at their phone 0:26 this combined with the length of time 0:28 spent in front of computers has led to 0:30 an increase in the prevalence of myopia 0:32 or nearsightedness in North America in 0:34 the 1970s about one quar of the 0:36 population had myopia where today nearly 0:39 half do and in some parts of Asia 80 to 0:41 90% of the population is now nearsighted 0:44 and it can be hard to put your phone 0:46 down take for example the game Candy 0:48 Crush as you play the game you achieve 0:50 small goals causing your brain to be 0:52 rewarded with little bursts of dopamine 0:54 and eventually you're rewarded in the 0:56 game with new content this novelty also 0:58 gives little bursts of dopamine and 1:00 together create what is known as a 1:01 compulsion Loop which just happens to be 1:04 the same Loop responsible for the 1:05 behaviors associated with nicotine or 1:07 cocaine our brains are hardwired to make 1:10 us novelty seeking and this is why apps 1:12 on our phones are designed to constantly 1:14 provide us with new content making them 1:16 hard to put down as a result 93% of 1:19 young people aged 18 to 29 report using 1:21 their smartphone as a tool to avoid 1:23 boredom as opposed to other activities 1:26 like reading a book or engaging with 1:27 people around them this has created a 1:29 new term nomophobia the fear or anxiety 1:32 of being without your phone we also see 1:35 a change in brain patterns Alpha rhythms 1:37 are commonly associated with wakeful 1:39 relaxation like when your mind wanders 1:41 off whereas gamma waves are associated 1:44 with conscious attentiveness and 1:46 experiments have shown that when a cell 1:47 phone is transmitting say during a phone 1:49 call the power of these Alpha Waves is 1:52 significantly boosted meaning phone 1:54 Transmissions can literally change the 1:56 way your brain functions your smartphone 1:58 can also disrupt your sleep the screen 2:00 emits a blue light which has been shown 2:02 to alter our circadian rhythms 2:03 diminishing the time spent in deep Sleep 2:06 which is linked to the development of 2:07 diabetes cancer and obesity Studies have 2:10 shown that people who read on their 2:11 smartphone at night have a harder time 2:13 falling asleep and produce less 2:15 melatonin a hormone responsible for the 2:17 regulation of sleep wake Cycles Harvard 2:20 medical school advises the last 2 to 3 2:22 hours before bed be technology free so 2:24 pick up a book before bed instead of 2:26 course smartphones also completely 2:28 change our ability to access information 2:30 most notably in poor and minority 2:32 populations 7% of Americans are entirely 2:35 dependent on smartphones for their 2:37 access to the internet a 2014 study 2:40 found that the majority of smartphone 2:41 owners use their phone for online 2:43 banking to look up medical information 2:45 and searching for jobs so while phones 2:47 are in no way exclusively bad and have 2:50 been part of a positive change in the 2:51 world there's no denying that they are 2:53 changing us but many successful people 2:56 have now decided to take smartphone 2:58 vacations in order to increase 3:00 productivity in our new ASAP thought 3:01 video we break down the top six reasons 3:04 you should take a smartphone vacation 3:06 and how it could benefit your life right 3:08 now and subscribe for more weekly 3:09 science videosVocabulary (3): Practice 0101 Esmeralda Vocab p. 1-3Voici le vocabulaire essentiel extrait des 4 leçons, organisé par thématique pour faciliter votre révision. ### 🔐 Leçon 1 : Identité Numérique & Sécurité Cette leçon porte sur la protection de votre accès et la distinction entre vie privée et vie scolaire. * **Identité Numérique Scolaire :** Votre "passeport" pour l'école. L'identifiant est au format `prenom.nom@studentfr.ch`. * **Session Locale vs Web Personnel :** La distinction importante entre l'environnement de l'école (scolaire) et votre navigation privée à la maison. * **MFA (Double Authentification) :** Le "verrou supplémentaire". Système de sécurité qui demande deux preuves d'identité (le mot de passe + une validation sur téléphone). * **Microsoft Authenticator :** L'application mobile requise pour valider votre identité via la double authentification. * **Mot de passe fort :** Un code d'accès qui respecte 4 règles (8 caractères min., 1 majuscule, 1 chiffre, 1 symbole). --- ### 💬 Leçon 2 : Teams (Communication) Le vocabulaire ici concerne la navigation dans votre "salle de classe virtuelle". * **Équipes :** Représente une classe virtuelle ou une matière (ex: "EPAI-Bureautique"). * **Canal "Général" :** Le tableau d'affichage officiel où le professeur publie les annonces importantes pour toute la classe. * **Canal (Public) :** Espace de discussion visible par toute la classe. * **Conversation (Privé) :** Messages directs visibles uniquement par les participants (comme un SMS/chat). * **Onglet "Fichiers" :** La bibliothèque de la classe où sont rangés les documents de cours (PDF, supports). --- ### 📂 Leçon 3 : Rangement Numérique Les termes techniques pour organiser efficacement vos documents sur un ordinateur. * **Arborescence :** La structure d'organisation des dossiers, visualisée comme les branches d'un arbre. * **Racine :** Le dossier principal qui contient tous les autres (le point de départ, ex: `2025_PRENOM_NOM`). * **Sous-dossiers :** Dossiers créés à l'intérieur de la racine (ex: "01_Administratif", "02_Cours"). * **Caractères interdits :** Symboles qu'il ne faut jamais utiliser pour nommer un fichier (ex: `/ \ : * ? " < > |`). * **Cycle de vie d'un fichier :** Les 3 étapes à maîtriser : Créer → Nommer → Enregistrer. --- ### ☁️ Leçon 4 : Cloud, Partage & IA Comprendre le stockage moderne et les nouveaux outils d'assistance. * **Cloud (Nuage) / OneDrive :** Espace de stockage en ligne ("clé USB invisible"). Accessible partout avec internet, contrairement au Disque Dur Local. * **Disque Dur Local (C:) :** Stockage physique sur l'ordinateur. Les données ne sont accessibles que sur cet appareil précis. * **Partage de lien :** Méthode moderne d'envoi de fichier (plus léger et sûr qu'une pièce jointe) permettant de travailler sur une version unique du document. * **IA (Intelligence Artificielle) :** Outil assistant (comme ChatGPT ou Gemini) qui répond à des instructions. * **Prompt :** L'instruction ou la question précise que l'on donne à une IA pour obtenir une réponse. DSAT New Vocab 301-400 (TD)DSAT Vocab 301-350(TD)DSAT Vocab 301-400 (TD)Paul's SAT Vocabulary 301-400