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🇮🇹 ITALIANO IN PILLOLE

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CHISTES MEXICANOS

DEFINICIONES

El Herbario Nacional de México (MEXU)

El Herbario Nacional de México (MEXU) custodia la colección más importante de plantas mexicanas. Con más de 1 300 000 ejemplares es el herbario más grande del país y América Latina; se encuentra entre uno de los diez herbarios más activos del mundo.

Esta colección es un logro de numerosas generaciones de botánicos y exploradores nacionales y extranjeros. Su historia se remonta a finales del siglo XIX cuando surge el Instituto Médico Nacional en 1888, como la institución oficial encargada de integrar los conocimientos sobre los recursos naturales. Hacia 1915 el herbario se consolidó e impulsó al reunirse las colecciones nacionales de plantas como parte de la Dirección de Estudios Biológicos. En 1929 la Universidad Nacional Autónoma de México, a través del Instituto de Biología, adquiere la custodia del herbario en donde el trabajo y la visión de sus administradores, científicos de talla mundial, han logrado mantener activa la colección dotándola de la infraestructura necesaria para su crecimiento, preservación y uso por la comunidad científica.

Las colecciones continuamente se incrementan con las colectas del personal académico asociado al herbario, por el programa de intercambio de especimenes con otras instituciones y por donaciones. Además, el herbario tiene su propio programa de crecimiento en áreas prioritarias y distribuye los duplicados a otros herbarios a través del intercambio. El acervo está disponible a través del programa de préstamos, lo que permite que la colección se actualice de acuerdo a los cambios taxonómicos.




Spanish México

El Herbario Nacional de México (MEXU)

This episode of "Everyday Dialogues" focuses on calling 911 during emergencies. Join us to practice essential phrases and improve your communication skills in emergencies. Boost your confidence and be prepared to handle emergencies effectively. Tune in now! 

Everyday Dialogues

Calling 911 🆘

completely in Bengali language  listening excercise. 

bengali101

An INtense bengali story

Teacher Joseph's Podcast

The Letter "R" and Tips on How To Use It

I talk about National Grammar Day and Banksey's real name.
 Transcripts will be back in the next podcast.

National Grammar Day

You just got into bed after a long day, and you're exhausted. You plan to spend a few minutes on your phone — maybe scrolling Instagram or TikTok — and then sleep.

But when you try to sleep, it's not as easy as you thought it would be. You were so tired — what happened?

According to a new study, your phone may be the problem.

The study, done by researchers at New Zealand's University of Otago, involved 85 kids aged 11 to 14. They each spent a week wearing a body camera on their chest starting from three hours before they got into bed.

A second camera was also placed in their bedrooms to monitor their phone use once they were in bed. They also wore a device that tracked their sleep.

The researchers found that 99% of the participants used their phones in the two hours before bed. More than half used their phones while they were in bed, and about a third used their phones after trying to go to sleep.

The results showed that screen time in bed affected participants' sleep — it stopped them from going to sleep for about half an hour, and also reduced the amount of sleep they got.

The impact was larger when participants had a more interactive experience — such as playing a game — or if they used more than one screen. For every additional 10 minutes of this type of screen time, sleep time was reduced by the same amount.

Interestingly, phone use in the two hours before bed had little impact on sleep.

According to lead researcher Bradley Brosnan, the results suggest that, while current guidelines recommend no screen time in the hour or two before bed, keeping phones out of the bedroom might be enough for a better night's sleep.

Practice Listening, Reading & Comprehension

Keep Screens Out of Bed for Better Sleep

A look at received pronunciation and why it is so "British".