I've been learning more and more about Twitter.
Twitter is a great resource for information about anything you may find interesting. The river of tweets provides ongoing and rapidly changing news headlines. Tweets are text-based posts of up to 140 characters displayed on the user's profile page. At any moment, you can see what people are experiencing, what is important to them and what they are thinking. If the topic of the 'tweet' is your subject area, then you can choose to interact or not. The stream of information lets you know something of interest about what is important to you. Of course, it's sensible to only 'follow' people who's work/life and/or philosophy is of interest to you.
Last week, in response to something I tweeted, I was invited to join a scheduled twitter chat about the use of social media and healthcare on Sunday night. Here's the link to the conversation. As the benefits of social media in health care, in particular, maternity services and information sharing, is of great interest to me, I joined in. I found the process confusing at first. The conversation is like being at a big party where everyone is talking at once. If you read the transcript of the session you will see what I mean.
How amazing that a transcript of the event can be produced and stored in a virtual file to be accessed at any time! That resource is so useful to me. I was able to return to the information and read it at my leisure. What's the purpose you may ask? That conversation has much to offer. I was looking for links to any useful information; I wanted to check out how others are thinking about the use of social media, the benefits and pitfalls of doing so. I was also interested in how practitioners are talking about ways to keep professionally safe using the medium; all of which and there was much more in that conversation to explore, provides food for thought.
For those of you who are interested in health care, Twitter offers a real opportunity to engage in real time with people from anywhere in the world about your topic of interest, from the comfort of your own home/computer. No need to travel and lose time in getting to different parts of the world to learn from people who know what you want to know; the only expense is your computer and internet server/connection. A really important and liberating aspect of Twitter is that there is no 'status' to get in the way of discussion or communication on Twitter. People who are technology nerds, CEO's, journalists, mothers, fathers, PhD's, scientists of all kinds, anyone who is interested, communicate and collaborate in an open, respectful way about their chosen topic. If anyone is not respectful, they are 'unfollowed' - no one is interested in 'fighting' or engaging with those who 'troll' and disrupt.
This morning, when I was checking the twitterstream # tags for twitterchats on health care and the use of social media (#hcsm and #hcsmanz), I found a tweet about a site that compiled all the twitter conversations about different aspects of health care. That site is found here. I noted that midwifery didn't have a hashtag, so have filled out the form to create a midwifery presence on that site. I've just been exploring the site that hosts the hashtag directory and that web page is interesting too, well worth having a look at and considering what an online presence is all about.
If you are interested in exploring the conversation about health care and social media tonight (Sunday) on twitter, join us using the hashtag #hcsmanz in your twitter posts. If you are not yet on Twitter, go here to learn about Twitter and to open up an account (it's free) and start tweeting! You can 'follow' me - which means you follow my conversation. You can tweet back anytime you like in response to any tweet. If you do follow me, then put the hashtag #hcsmanz in the tweet. After you post, you can click on the hashtag and that will take you to the list of tweets about that subject. Then you can save that search as a list which can be accessed, with updates, at any time.
I look forward to our conversations on Twitter.
What do you think, will I see you there? Comments and questions welcome.
Sunday 12 December 2010
Tuesday 7 December 2010
What effect does ultrasound have on growth restricted babies?
Some years ago, a research project from WA suggested that babies who were repeatedly subjected to ultrasound to check their growth, were in fact even smaller because of that ultrasound intervention. That idea was dismissed later because the babies did not seem to have any long term effect.
A midwifery colleague asked on an email midwifery list if anyone knew of any follow up studies to that work done in Perth, WA.
This question piqued my interest, so I had a look at the effect of ultrasound on cells. Ultrasound is used therapeutically for various physical problems e.g. rehab and to detect fetal anomalies.
I've fallen in love with cells lately and am finding them eminently fascinating.
This human physiology site has some wonderful graphics about cells, such as the one below, including simulated videos of cell structure, function and behaviour. Well worth exploring!
I found some links with information worth investigating:
This article explains how ultrasound can blow holes in cell membranes
and the following abstract has a bit more on holes and bubbles
This article is aimed at horticultural interests. How amazing it is what ultrasound can do at different intensities
and I quote from the above article:
"It showed that ultrasound is capable to peptize soy protein at almost any commercial throughput and that the sonication energy required was the lowest, when thicker slurries were used. (Moulton et al. 1982)"
Not that we can call the substance in human cells 'slurry' but I wonder if the density of that substance affects the way that ultrasound works in pregnancy?
and just what is ultrasound doing to bones?
Cancer cells get blasted with high intensity ultrasound, however, I wonder what ultrasound does to fetal mitochondria?
You need to sign up to get the whole article
low pressure and high pressure effects on cells noted in this abstract from Japanese investigators
and from Czech Republic, microtubules and microfilaments (essential cell components) are the subject of examination when ultrasound is coupled with cytostatic drugs in this study reported below:
and then E Coli were not that fussed on ultrasound:
That article is particularly good and easy to read. I was a bit uncomfortable when I read that the researchers noted: "cell viability decreased exponentially with time at different intensities of ultrasound"
However, there are some amazing therapeutic applications for ultrasound as explained in this video by Yoav Medan, who with his team is "developing a tool for incision-less surgery via focused ultrasound". In this video, the techniques are explained and in the comments, you will see that someone has asked about the safety of ultrasound in pregnancy. The reply is that ultrasound is safe in pregnancy as the frequncy used scan a fetus is lower than that used elsewhere.
However, there are some amazing therapeutic applications for ultrasound as explained in this video by Yoav Medan, who with his team is "developing a tool for incision-less surgery via focused ultrasound". In this video, the techniques are explained and in the comments, you will see that someone has asked about the safety of ultrasound in pregnancy. The reply is that ultrasound is safe in pregnancy as the frequncy used scan a fetus is lower than that used elsewhere.
These following studies are particularly interesting when we consider fetal growth restriction from ultrasound, as this one focuses on what happens to fat cells with rats
and this one with men
That last couple are fascinating aren't they? Do you think that gives us a bit of a window into what may be going on with the observations around ultrasound adding to growth restricted babies' physical development?
The question is, what can we do differently? I have some ideas on that. Look for another blog post on this subject.
Just to add another lens on this fat shrinking/blasting idea, here's how the ultrasound machine makers are reaping the benefits of this versatile technology in another realm of people's fears - the 'perfect body syndrome' also disguised as the 'obesity epidemic' with 'fat' as the enemy.
Subscribe to:
Posts (Atom)