Welcome to the Stoverview

Welcome to the Stoverview which, it is hoped, will be of interest to those connected with Stover School - and also to the wider community involved with secondary education, and perhaps to those just interested in 'bits and pieces' about science, history and stuff! See here for more.

Tuesday 25 October 2011

Bad News for the Javan Rhino

Sad news was reported today on the BBC News website. 

There are believed to be fewer than 50 Javan rhinos left in the wild worldwide, and the last individual remaining in Vietnam was found dead recently – probably the victim of poachers who had cut off its horn. Genetic analysis of dung samples collected between 2009-2010 in the Cat Tien National Park in Vietnam showed that they all belonged to just one individual.

Rhino poaching appears to be on the increase globally, and Traffic, the global wildlife trade monitoring network, said the surge in the illegal trade in rhino horns was being driven by demands from Asian medicinal markets.

Rhinoceros sondaicus the Javan rhinoceros thus no longer exists on mainland Asia, and is now only to be found in the westernmost parts of Java itself.

Friday 21 October 2011

Senior School Speech Day


The Choir practise for Speech Day
Wednesday 19th October saw Stover looking spick and span for the Senior School Speech Day. Prizes were presented by Guest of Honour Serena Brocklebank: mountaineer, diplomat, House Mistress and lawyer (amongst other things). Ms Brocklebank recently led a party from Stover on a trek to the Annapurna Base Camp and, with extreme modesty, gave a short but inspiring illustrated talk on her conquest of Everest - highlighting how she was acutely aware of following in her grandfather's footsteps.

Chair of the Governers Mrs Charlotte Walliker outlined some exciting new developments for Stover in her speech, including a move to being a completely coeducational school from September 2012, the advent of boys' boarding on the school site and a new structure to the school day - which will allow increased contact time for lessons and make it easier for pupils and staff to get more fully involved in extra-curricular activities.

Friday 14 October 2011

The Perils of Modern Technology?

Many thanks to Mr. Haigh from the Maths Department for alerting us to the MailBigFile blog – which carries a range of interesting articles on matters cyberspatial and technological. For example...

Boston College has recently published research findings which show that teenagers watching television whilst using a laptop tend to concentrate for an average of just 14 seconds on one before switching to the other. Adults over 40 did not fare much better, switching on average every 17 seconds.

It is perhaps not surprising that people are easily distracted when electronically multitasking, but do these findings suggest that a generation brought up on i-phones, TV and laptops may find it increasingly difficult to learn how to concentrate and focus?
Another MailBigFile article highlights the dehumanising effect of social media - suggesting that whilst it gets easier to keep in touch, we become more isolated as people engage in less personal contact.

A telling example is cited of Julianne a 41 year old teacher (sounds familiar?), who ‘talks’ to hundreds of ‘friends’ on the internet about her isolation. She has always suffered from low self-esteem. She has no partner, no children and is in a cycle of misery that exacerbates her social problems. She teaches, but knows few people, as colleagues tend to socialise with their own families. Her parents are elderly; she is lonely. Occasionally she goes on drinking binges…
With social networking sites and increased use of language-destroying ‘txting’ are we storing up social problems for the future by whittling away the need for basic human interpersonal skills and face to face contact – or are we simply evolving new and better ways of communicating and keeping in touch?
LOL!

Thursday 6 October 2011

Year 11 Pupils Investigate the Kidney

As part of their GCSE Biology course, Year 11 pupils today investigated the structure of the kidney.
The Dissection Begins
The kidneys are two bean-shaped organs attached to the rear wall of the abdominal cavity. They have a rich blood supply, and as the blood passes through them it is filtered by millions of little structures called nephrons, consisting of: a glomerulus (a coiled ball of capillary blood vessels), and a kidney tubule (of which there are over 1 million, or 60 km worth per kidney).

A Nephron
Finishing Touches
Blood flows into each glomerulus from the renal artery. Small molecules ‘leak out’ under pressure filtration, into the Bowman’s capsule of the tubule. The small molecules are: water, urea, sugar and salt. The urea and most of the water flow down the tubule to a collecting duct and ultimately into the ureter and bladder to be excreted as urine. Useful materials however, like glucose and salt, are actively transported back into the capillaries surrounding each tubule – a process known as selective reabsorption.  

In cross-section, a kidney has two main regions: the outer cortex is lighter coloured, and contains the glomeruli and the beginning and end of each nephron. The inner medulla contains the middle u-shaped part of each nephron (e.g. the loop of HenlĂ©). The medulla extends into the central ‘pelvis’ of the kidney as projections called pyramids.
Kidney in Cross-Section



Kidney Structure
Further Research