Mariane Castro

🐦‍⬛

[Mariane Castro @MarianeSchaffer]

@Eppendorf_Group is there a way I could get an eppendorf pen living in Brazil? I’m a masters student in immunology and it has always been a dream to have a pipette pen 😭

[Scholarship for PhD @ScholarshipfPhd]

Every researcher's nightmare: "Your sample size is too small to detect that effect."

This open-access paper in Frontiers in Medicine solves that problem BEFORE you collect data.

"How to calculate sample size in animal and human studies" by Zhang & Hartmann breaks down:

✓ What is statistical power? (and why 0.8 isn't magic) ✓ How to choose effect size
✓ What to do when you have pilot data
✓ What to do when you have NO pilot data
✓ How to account for dropouts
✓ Actual G*Power screenshots with parameters filled in

The paper includes worked examples for:

- Comparing two proportions
- Comparing two means
- Studies with unequal group sizes
- Studies expecting attrition

The hard truth: Most underpowered studies aren't because researchers are careless. They're because sample size calculation is genuinely confusing and rarely taught well.

This paper treats you like an intelligent person who just needs clear explanation and practical examples.

Read it before you write your next ethics application or grant proposal.

Your future self (and your reviewers) will thank you.

[Bruno Ramos-Molina, PhD @Brunorm84]

Defining #Microbiota-Derived Metabolite #Butyrate as a Senomorphic: Therapeutic Potential in the Age-Related T Cell #Senescence @AgingCell https://t.co/3jbj6BjDkQ

[Mariane Castro @MarianeSchaffer]

@oamegoni Da licença

[Mariane Castro @MarianeSchaffer]

@othivargas Que legal 👍🏻💀

[Mariane Castro @MarianeSchaffer]

@plagiu Imagina se fosse intolerante a lactose

[Mariane Castro @MarianeSchaffer]

@simplyweezee @choquei https://t.co/yzk7vqVtAE

[danie ♟️ @GUCCIJUMPSUlT]

falta pouco pra eu virar o paul mccartney maluco no get back

[Mariane Castro @MarianeSchaffer]

@IsadoraPoock Manda link amg

[Mariane Castro @MarianeSchaffer]

@IsadoraPoock Ufcspa também não 😩

[Mariane Castro @MarianeSchaffer]

@IsadoraPoock Amiga vou te dizer que isso não é coisa de universidade tá kkkkk é pq tem gente sem noção mesmo

[Mariane Castro @MarianeSchaffer]

@natacitouofc Hotweels

[Mariane Castro @MarianeSchaffer]

@lariectomia meu deus tem o abbas vc me salvou muito ❤️❤️

[Mariane Castro @MarianeSchaffer]

@eusouleitinho @TSEjusbr foi um saco, tive que ir lá
basicamente trocaram 2 letras do nome do meu pai, mas um saco né
trabalham com documentos oficiais e conseguem errar isso

[Mariane Castro @MarianeSchaffer]

@TSEjusbr vcs poderiam me ajudar?
não consigo acessar o app e nem gerar certidão de quitação eleitoral (que preciso pro meu registro profissional) porque diz que algum dado está incorreto, porém coloquei todos os dados pessoais meus corretamente

[Mariane Castro @MarianeSchaffer]

@IsadoraPoock ondeeee