Team:Imperial College London

From 2011.igem.org

(Difference between revisions)
Line 2: Line 2:
<html>
<html>
<head>
<head>
 +
<style type="text/css">
<style type="text/css">
-
div.rssincl-trial-header{display:none;}
+
 
 +
/*Example CSS for the two demo scrollers*/
 +
 
 +
#pscroller1{
 +
width: 800px;
 +
height: 100px;
 +
border: 0px solid #225323;
 +
padding: 5px;
 +
background-color: white;
 +
}
 +
 
 +
#pscroller1 a{
 +
color: #225323;
 +
}
 +
 
 +
#pscroller1 h2{
 +
color: #000000;
 +
font-style:italic;
 +
}
 +
 
 +
#pscroller1 h3{
 +
color: #225323;
 +
text-align:right;
 +
}
 +
 
 +
 
 +
.someclass{ //class to apply to your scroller(s) if desired
 +
}
 +
 
</style>
</style>
 +
 +
<script type="text/javascript">
 +
 +
/*Example message arrays for the two demo scrollers*/
 +
 +
var pausecontent=new Array()
 +
pausecontent[0]='<h2>"I must say I’m impressed with the idea of your group."</h2><h3><a href="http://www.syngenta.com/country/uk/en/Pages/home.aspx/" target="_blank">Mathijs Wuts, Syngenta</a></h3>'
 +
pausecontent[1]='<h2><i>"Another quote"</i></h2><h3>Anonymous</h3>'
 +
 +
</script>
 +
 +
<script type="text/javascript">
 +
 +
/***********************************************
 +
* Pausing up-down scroller- © Dynamic Drive (www.dynamicdrive.com)
 +
* This notice MUST stay intact for legal use
 +
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
 +
***********************************************/
 +
 +
function pausescroller(content, divId, divClass, delay){
 +
this.content=content //message array content
 +
this.tickerid=divId //ID of ticker div to display information
 +
this.delay=delay //Delay between msg change, in miliseconds.
 +
this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over scroller (and pause it if it is)
 +
this.hiddendivpointer=1 //index of message array for hidden div
 +
document.write('<div id="'+divId+'" class="'+divClass+'" style="position: relative; overflow: hidden"><div class="innerDiv" style="position: absolute; width: 100%" id="'+divId+'1">'+content[0]+'</div><div class="innerDiv" style="position: absolute; width: 100%; visibility: hidden" id="'+divId+'2">'+content[1]+'</div></div>')
 +
var scrollerinstance=this
 +
if (window.addEventListener) //run onload in DOM2 browsers
 +
window.addEventListener("load", function(){scrollerinstance.initialize()}, false)
 +
else if (window.attachEvent) //run onload in IE5.5+
 +
window.attachEvent("onload", function(){scrollerinstance.initialize()})
 +
else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec
 +
setTimeout(function(){scrollerinstance.initialize()}, 500)
 +
}
 +
 +
// -------------------------------------------------------------------
 +
// initialize()- Initialize scroller method.
 +
// -Get div objects, set initial positions, start up down animation
 +
// -------------------------------------------------------------------
 +
 +
pausescroller.prototype.initialize=function(){
 +
this.tickerdiv=document.getElementById(this.tickerid)
 +
this.visiblediv=document.getElementById(this.tickerid+"1")
 +
this.hiddendiv=document.getElementById(this.tickerid+"2")
 +
this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv))
 +
//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)
 +
this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px"
 +
this.getinline(this.visiblediv, this.hiddendiv)
 +
this.hiddendiv.style.visibility="visible"
 +
var scrollerinstance=this
 +
document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1}
 +
document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0}
 +
if (window.attachEvent) //Clean up loose references in IE
 +
window.attachEvent("onunload", function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null})
 +
setTimeout(function(){scrollerinstance.animateup()}, this.delay)
 +
}
 +
 +
 +
// -------------------------------------------------------------------
 +
// animateup()- Move the two inner divs of the scroller up and in sync
 +
// -------------------------------------------------------------------
 +
 +
pausescroller.prototype.animateup=function(){
 +
var scrollerinstance=this
 +
if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){
 +
this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+"px"
 +
this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+"px"
 +
setTimeout(function(){scrollerinstance.animateup()}, 50)
 +
}
 +
else{
 +
this.getinline(this.hiddendiv, this.visiblediv)
 +
this.swapdivs()
 +
setTimeout(function(){scrollerinstance.setmessage()}, this.delay)
 +
}
 +
}
 +
 +
// -------------------------------------------------------------------
 +
// swapdivs()- Swap between which is the visible and which is the hidden div
 +
// -------------------------------------------------------------------
 +
 +
pausescroller.prototype.swapdivs=function(){
 +
var tempcontainer=this.visiblediv
 +
this.visiblediv=this.hiddendiv
 +
this.hiddendiv=tempcontainer
 +
}
 +
 +
pausescroller.prototype.getinline=function(div1, div2){
 +
div1.style.top=this.visibledivtop+"px"
 +
div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px"
 +
}
 +
 +
// -------------------------------------------------------------------
 +
// setmessage()- Populate the hidden div with the next message before it's visible
 +
// -------------------------------------------------------------------
 +
 +
pausescroller.prototype.setmessage=function(){
 +
var scrollerinstance=this
 +
if (this.mouseoverBol==1) //if mouse is currently over scoller, do nothing (pause it)
 +
setTimeout(function(){scrollerinstance.setmessage()}, 100)
 +
else{
 +
var i=this.hiddendivpointer
 +
var ceiling=this.content.length
 +
this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1
 +
this.hiddendiv.innerHTML=this.content[this.hiddendivpointer]
 +
this.animateup()
 +
}
 +
}
 +
 +
pausescroller.getCSSpadding=function(tickerobj){ //get CSS padding value, if any
 +
if (tickerobj.currentStyle)
 +
return tickerobj.currentStyle["paddingTop"]
 +
else if (window.getComputedStyle) //if DOM2
 +
return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-top")
 +
else
 +
return 0
 +
}
 +
 +
</script>
 +
</head>
</head>
<body>
<body>
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<tr>
<tr>
-
<td colspan="2">
+
<td colspan="2" style="padding:20px">
 +
 
 +
<script type="text/javascript">
 +
 
 +
//new pausescroller(name_of_message_array, CSS_ID, CSS_classname, pause_in_miliseconds)
 +
 
 +
new pausescroller(pausecontent, "pscroller1", "someclass", 3000)
 +
 
 +
</script>
 +
 
<h1>Sponsors</h1>
<h1>Sponsors</h1>
<p>
<p>

Revision as of 14:33, 7 September 2011



Welcome to the Imperial College London iGEM 2011 website

Project Outline

Engineering bacteria to help fight soil erosion

In arid areas of the world soil erosion is a massive problem. It is caused by wind and rain sweeping away the fertile top soil and can eventually result in desertification.

Climate change and unsustainable farming practices are accelerating the rate of desertification to over 31,000 hectares/day. That’s 62, 000 football pitches in a day or half the size of the UK every year.

In ordinary circumstances the roots of well established plants help to hold down the top soil, protecting it from erosion. In areas that suffer desertification however plants do not get the chance to establish large enough root networks to anchor the soil and themselves before erosion occurs.

This year, Imperial College’s iGEM team have joined the international effort to fight desertification.

We hope to engineer bacteria to accelerate plant root development. The bacteria will be designed to secrete the hormone auxin. Seeds will be coated with the bacteria and then planted in the soil. Once the seeds germinate the bacteria will move towards the roots and be taken in by the plant. Inside the roots the bacteria will release auxin – promoting growth and protecting the soil from erosion.

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Sponsors

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