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Aug 10, 2020 6 tweets 2 min read Read on X
Today wouldn't be #BlackinAnalytical day (a national holiday from my perspective) without me talking about mass spectrometry!
Mass spectrometry is an analytical technique that measures the mass-to-charge ratio of ions.

As a refresher, an ion is an atom or molecule that has a net electric charge due to gaining or losing electrons.
You may hear people say that mass spectrometers (MS) measure mass, but that's not *technically true*. They do, just not directly.
You need both a mass and a charge to be detected with MS and that's because molecules with charge(s) have motion that can be manipulated/controlled in an electric field.

I won't go too deep into the physics behind that, just trust me on this one.
Curious what they look like? Here's a super general schematic of MS instruments. My favorite thing about them is that they are so versatile but they all have these main parts: a ionization source, a mass analyzer, and a detector.

I'll do mini threads on each part too! Image
There are a few other parts to MS instruments, like the pumps and electronics, but that's a lot of detail and a LOT of physics so we'll just stick to the good stuff today.

Also, feel free to comment below what else you'd like me to talk about with MS today/this week.

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More from @realscientists

May 27, 2022
1/ Gender Bias in Student Evaluations of Teaching: ‘Punish[ing] Those Who Fail To Do Their Gender Right’

Our big #qualitative analysis (386,277 unique responses!) published in Higher Education

link.springer.com/article/10.100…
2/Our findings suggest that student evaluations of teaching seem to measure *conformity with gendered expectations* rather than teaching quality

A cause for concern given the integration of SET data into performance profiles, and management and organisation of teaching practice
3/Before I go on, in terms of the necessarily binary reporting, it is very important to say here that we recognise the ‘pluralities inherent in gender(s)’ that complicate simple binary approaches to gender (Weerawardhana, 2018, p.189), and we do discuss this in the paper
Read 13 tweets
May 26, 2022
1/n Thread

I want to talk a little this afternoon about this win for trans athletes & athletes with sex variations

International Olympic Committee shifts toward human rights

Here from me and Drs Madeleine Pape and Ryan Storr:

theconversation.com/a-win-for-tran…
2/n

On important background, in March 2020 the IOC recognised harassment and abuse as a current human rights challenge, and in particular recognised that LGBTQI+ athletes are at “particular risk of harm and structural discrimination”
3/n

The IOC now recognise female eligibility regulation *as an organisational violence issue* and as systemic discrimination

[I'll do another tweet thread on this later, drawing on my own research on this]

Read 15 tweets
May 25, 2022
It just occurred to me that I neglected to provide some injury prevention materials here!

It's not all doom and gloom, I can highly recommend the free (!) Perform+ program from Football Australia

footballaustralia.com.au/performance
Now of course, as I discuss in my original thread, we must consider how gendered environments impact on the effectiveness of such programs

That said, I'm so pleased to be able to say that our research has had an impact on this section of the materials

footballaustralia.com.au/performance/ti…
Read 6 tweets
May 25, 2022
Good morning from #BJSMLive22 everyone

@BJSM_BMJ EiC @DreznerJon and conference Co-Chairs @FionaWilsonf and @osmanhahmed welcoming us in-person and online Conference stage as seen re...
I think will be a day of really important Sport and Exercise Medicine conversations, including on:

- PA promotion
- Low back pain
- Safeguarding
- COVID-19
- What should SEM look like in the 2020s?

#BJSMLive22

bit.ly/3oY6XUB
So proud that our relatively new @UniofBath research centre @CHi2PSBath is so well-regarded and represented at #BJSMLive22

We research injury and illness prevention in sport, and have a stellar team 🤩
Read 20 tweets
May 24, 2022
1/n 🧵

I want to address a narrative that we see around women’s sport and inclusion (particularly from those who seek to exclude trans women & women with sex variations from women’s sport), and how this narrative is part of a bigger pattern that functions to keep women small
2/n

I have been hearing more frequently the narrative that women's sport apparently exists as a 'protected category' so that women can win (because, on this account, without it no woman will ever win again)
3/n

This is:

a) *not* the reason why women's sport exists as a category,

and b) it is *not* true that no woman will ever win again.

This narrative is profoundly paternalistic and keeps women small.
Read 33 tweets
May 24, 2022
So I’m at the train station on my way to Brighton 🏖 Sign reading Bath Spa with a green hill and houses and blue Train leaving a station platform
First, I’ll be speaking at #BJSMLive22 tomorrow

This is a new online & in-person Sport and Exercise Medicine conference covering:

- Physical Activity promotion
- Low back pain
- Safeguarding
- COVID-19
- What should SEM look like in the 2020s? BJSM Live poster that reads: Bringing together the global SEBJSM Live speaker announcement featuring Sheree Bekker
It’s been great to be part of the programme advisory committee, alongside @DreznerJon @DrSportyKay @AJAtkin with Co-Chairs @FionaWilsonf and @osmanhahmed

#BJSMLive22

Use my discount code BJSMCOM15 to receive 15% off standard rates

bjsmlive.bmj.com
Read 5 tweets

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