"I have come to an understanding that this technology trajectory we are on isn’t a straight line. That we go through moments of great technological growth…usually around new hardware….and then we have these plateau periods. They might not be as flat as they look in this image…but there are definitely slower periods I think of innovation as we prepare for the next disruption.
"So the image above shows my thoughts on this kind of innovation and plateau idea that I think we go through.
"We saw steep climbs when the desktop came out…then there was a period of using them before the Internet came out that created another steep climb of innovation. The laptops and then mobile where other steep moments in technology innovation. These times when we try to figure out what we do with this thing. How does it impact education, what’s it’s best use, etc. We are all trying to figure out how to best use this new technology.
"In between these climbs we have moments of pause that allow us to really look at learning, the new technology, and start thinking of ways to really truly use it in the classroom to impact student learning.
I believe we are in one of these pauses right now….we’ve been in one since about 2011…or a year after the iPad came out. There hasn’t been any real new technology. Sure things get faster, smaller, lighter…but it’s all mobile right now…that’s the stage we’re in. I think we also have a couple years left in this pause before wearable technology creates the next steep stage and sends us all once again scrambling to figure out how this new technology impacts education."
The rise of 3D printing has introduced one of the most ground-breaking technological feats happening right now. The most exciting part, though, doesn't have anything to do with printing electronics or fancy furniture, but in producing human tissues, otherwise known as bioprinting. While it is still in its infancy, the future of bioprinting looks very bright and will eventually result in some major advances for society, whilst also saving billions for the economy this is spent on research and development.
Big 5: Solar innovations gaining popularity in GCC Construction Week Online Greek solar company Nobel exhibited its collection in solar power innovations at Big 5 this year including solar water heaters, solar collectors, forced circulation systems...
"Learning to create, manage and promote a professional learning network (PLN) will soon become, if it’s not already, one of the most necessary and sought after skills for a global citizen, and as such, must become a prominent feature of any school curriculum.
"Few progressive educationalists would argue that a personal learning network (PLN) is not incredibly valuable and important. Passionate advocates including Murray, Whitby, and Sheninger lead with clarity in such discussions. The wealth of professional development that stems from such a network is quickly defining it as an essential tool for teachers, and will, I believe, replace organised costly professional development undertaken by organisations.
"However presently, few discussions and promotions of PLN’s venture further than lauding specific benefits for teachers. But why just teachers, and not students? Could students benefit from a network of learners? Considering the importance of exams in determining futures, it seems that professional development for students not only has unbounded potential, but must be taught as a matter of urgency."
Young Achievers Awards | Rewarding Innovations and Excellence on Trending in Uganda curated by Ugtrendz (Young Achievers Awards | Rewarding Innovations and Excellence | @YAA_UG http://t.co/oodGXSswm9...
Flowers may use UV patterns to attract bees. See how, and check out photos that shows us approximately what a bee sees when it looks at flowers.
UV fluorescence may be a common trait to most flowers, but might be of temporary occurrence for parts of the flower. Anthers, style, and pollen grains occasionally are seen to fluoresce. Strong fluorescence has been noted from nectar glands (Angelica sylvestris) and several other species. Some species show fluorescence of the non-fertilised stigmas, but this trait is difficult to document with my normal technical approach. Fluorescence from outside of the bracts is exhibited by some species. As far as the photography is concerned, the main issue with flower fluorescence is its transient behaviour. It may be present, but the flowers collected for photography don't appear to fluoresce simply because the floral development is in the "wrong" stage. With fluorescent pollen grains, their size often are at or below the detection limit unless quite high magnification is employed, thus calling for a true photomacropgraphic approach. The fluorescing pollen of Mirabilis jalapa has been documented using this method.
UV-absorbing substances (flavonyl glucosides) are instrumental in bringing about the fascinating pollinating guide patterns. UV marks on flowers are but a logical extension of the visual pollinating clues provided by evolution in nature. If the flower absorbs UV all over the floral parts, it may appear visually in a "UV-complementary" color even to pollinators capable of seeing in UV. We can only speculate as to the rendition of that complementary color, but if say the insect is modelled as seeing UV as "blue", blue as "green", and green as "red", then the UV complementary would be yellow. Thus, a UV-absorbing yellow flower still would come across as "yellow" even for an insect (or so it might seem, but who are we to know such things anyway).
Viruses cannot only cause illnesses in humans, they also infect bacteria. Those protect themselves with a kind of ‘immune system’ which – simply put – consists of specific sequences in the genetic material of the bacteria and a suitable enzyme. It detects foreign DNA, which may originate from a virus, cuts it up and thus makes the invaders harmless. Scientists from the Helmholtz Centre for Infection Research (HZI) in Braunschweig have now shown that the dual-RNA guided enzyme Cas9 which is involved in the process has developed independently in various strains of bacteria. This enhances the potential of exploiting the bacterial immune system for genome engineering.
Even though it has only been discovered in recent years the immune system with the cryptic name ‘CRISPR-Cas’ has been attracting attention of geneticists and biotechnologists as it is a promising tool for genetic engineering. CRISPR is short for Clustered Regularly Interspaced Palindromic Repeats, whereas Cas simply stands for the CRISPR-associated protein. Throughout evolution, this molecule has developed independently in numerous strains of bacteria. This is now shown by Prof Emmanuelle Charpentier and her colleagues at the Helmholtz Centre for Infection Research (HZI) who published their finding in the international open access journal Nucleic Acids Research.
The CRISPR-Cas-system is not only valuable for bacteria but also for working in the laboratory. It detects a specific sequence of letters in the genetic code and cuts the DNA at this point. Thus, scientists can either remove or add genes at the interface. By this, for instance, plants can be cultivated which are resistant against vermins or fungi. Existing technologies doing the same thing are often expensive, time consuming or less accurate. In contrast to them the new method is faster, more precise and cheaper, as fewer components are needed and it can target longer gene sequences.
Additionally, this makes the system more flexible, as small changes allow the technology to adapt to different applications. “The CRISPR-Cas-system is a very powerful tool for genetic engineering,“ says Emmanuelle Charpentier, who came to the HZI from Umeå and was awarded with the renowned Humboldt Professorship in 2013. “We have analysed and compared the enzyme Cas9 and the dual-tracrRNAs-crRNAs that guide this enzyme site-specifically to the DNA in various strains of bacteria.” Their findings allow them to classify the Cas9 proteins originating from different bacteria into groups. Within those the CRISPR-Cas systems are exchangeable which is not possible between different groups.
This allows for new ways of using the technology in the laboratory: The enzymes can be combined and thereby a variety of changes in the target-DNA can be made at once. Thus, a new therapy for genetic disorders caused by different mutations in the DNA of the patient could be on the horizon. Furthermore, the method could be used to fight the AIDS virus HIV which uses a receptor of the human immune cells to infect them. Using CRISPR-Cas, the gene for the receptor could be removed and the patients could become immune to the virus. However, it is still a long way until this aim will be reached.
Still those examples show the huge potential of the CRISPR-Cas technology. “Some of my colleagues already compare it to the PCR,” says Charpentier. This method, developed in the 1980s, allows scientists to ‘copy’ nucleic acids and therefore to manifold small amounts of DNA to such an extent that they can be analysed biochemically. Without this ground-breaking technology a lot of experiments we consider to be routine would have never been possible.
Charpentier was not looking for new molecular methods in the first place. “Originally, we were looking for new targets for antibiotics. But we found something completely different,” says Charpentier. This is not rare in science. In fact some of the most significant scientific discoveries have been made incidentally or accidentally.
Ines Fonfara, Anaïs Le Rhun, Krzysztof Chylinski, Kira Makarova, Anne-Laure Lécrivain, Janek Bzdrenga, Eugene V. Koonin, Emmanuelle Charpentier: Phylogeny of Cas9 determines functional exchangeability of dual-RNA and Cas9 among orthologous type II CRISPR-Cas systems.
Tracks focus on consumer engagement, exchange implementation, streamlining administrative processes and enhanced operational efficiency, implementing payment reform initiatives, and new technologies and innovations ...
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