The concept of carrying capacity is employed in a remarkably wide range of disciplines and debates, and it has been forcefully critiqued within numerous fields. Though, its historical origins still remain obscure.
The natural and engineering sciences offer tremendous prospect for contribution to a more sustainable future, and it becomes a responsibility because these areas produce, not only solutions but also, problems. It is much needed that science and technology are accompanied by societal priorities because this gives sustainability science its context and rationale.
Best Before Dates Go High-Tech: Canadian University Develops Super-Efficient Transparent Patch to Detect Food Spoilage
Many of us judge the freshness of foods by their appearance or smell. This works for most un-refined foods we can buy and that are found in nature. However, in the case of packaged foods, we are often reduced to using the best-before dates printed on the outside of boxes or bottles. Consumers may regard these dates as accurate and reliable, but the truth is that they can be a little arbitrary. This may lead to food waste whether the products in question are in fact edible or not.
Biological and chemical nanoengineers are faced with the problem of getting molecules to take the shapes they want towards certain applications.
For example, tissue engineering may require molecular 'scaffolds' to deliver and build matrices of the new cells needed to replace those lost in wounds or other anomalies. However, it is difficult to get synthetic large-scale structures to stay in one piece, in vitro or in vivo. This instability is due to the difficulty in finding chemical formulas that will result in reliable, robust lattice structures.
Microglia are cells thought to make up about 10% of the brain. Despite their lack of neuronal function, they are seen as quite important to normal neurological health and function.
The condition associated with Trypanosoma brucei is known as sleeping sickness, where affected humans tend to want to sleep during the day rather than the night. Patients with this condition also exhibit altered patterns of body temperature and endocrine functions. Their activities gradually shift through the morning, which, in turn, increases the body's drive to go to sleep at the "end" of that day.
A specimen found in the Atacama Desert over ten years ago rocked the internet with many wild theories about its origins and how such a creature came to be on Earth. These remains were skeletal and had a mostly humanoid form. However, it was also only about six inches long and had an elongated skull with an abnormal ridge. Its eye sockets were also stretched out of normal human proportions. For some, this was enough evidence to count it as an alien that had somehow come to Earth and perished here. However, it seems a scientific study of the tiny skeleton has ruined that fun.
The 47th Annual Meeting of the American Association for Dental Research (AADR) is currently taking place in Fort Lauderdale, Florida, and has already turned out some interesting new findings.
For example, one presentation indicates that certain types of bone damage can be healed using a form of 3D printing. The project being showcased in this instance is intended to address skull bone defects, which are difficult to treat with conventional surgery.
Nanowires are short, thin rods of material such as gallium arsenide that are present at the sub-micrometric scale.
They are grown on substrates such as silicon wafers in a way that resembles molecular self-assembly. Understanding this process is also key to controlling and modulating it. These abilities would mean scientists could create their own custom nanowires, which could be beneficial to numerous areas of science and technology.
Periplaneta americana, commonly known as the American cockroach, is the most dreaded house pest of them all.
Why? It is almost impossible to kill.
This unique survival mechanism has inspired scientists to create robots mimicking these roaches. But, what makes them so adaptable to the environment that they cannot be destroyed easily? Their genes!
The news of Stephen Hawking’s death may have come as a source of sadness for many of us. His family have reported that he was at peace as he passed away on the morning of the 14th of March 2018.
However, it may certainly be hard to imagine a world without his regular new contributions to popular culture, not to mention his specific academic and scientific arenas.
The phenomenon of 'climate warming' has been touted as the ultimate environmental risk of the future. This occurrence is being linked to potentially cataclysmic processes such as widespread flooding, hurricanes, and the concomitant, permanent loss of land-mass. It may also lead to large-scale damage to locations that are normally ice- and snow-locked.
Even though the process of ageing differs among individuals (based on their lifestyles and environment), it is inevitable and irreversible for all of them. Chronological age can be measured according to birth date, each year, but experts have adjudged this method to be inaccurate while determining true biological age.
Naturally occurring in the wild, psilocybin mushrooms, colloquially known as "magic" mushrooms, have long mystified researchers. The origin of their unique properties - causing auditory and visual hallucinations, moments of euphoria, and feelings of "magic" - are being investigated. Amidst controversy, these special mushrooms are believed to have, in moderate doses, therapeutic effects on humans such as in combating depression, anxiety, and addiction.
Magnetic forces form the basis of how the universe keeps turning. However, many researchers assert that these forces may have other roles in the wider cosmos owing to the presence of molten cores in the many planets and planetoids out there.
A team of researchers in a German astrophysics centre plan to model the magnetism generated by these bodies using an experimental analogue, similar to a dynamo. The results of this experiment may lead to a better understanding of many fundamental phenomena, like why the Earth tilts on its solar orbit and such.
There is a depressing quote concerning the ability of false information to outpace a more verifiable counterpart among human beings. Furthermore, it has many versions and variations, some of which are attributed to more than one author. However, it appears that including a wrongful citation would ensure that it would be repeated far earlier and far more often. This would be in keeping with the message of the quote – and would also be substantiated by scientific evidence.
One of the biggest challenges faced by cancer patients today is diagnosis of their condition early enough to get suitable treatment options.
Cancer results in more than 8 million deaths worldwide, each year, and the National Cancer Institute has predicted the numbers to rise to 22 million in the next few decades.
Among years of innovation and research, a new way to tackle the detection of this disease has been developed — an improved and faster screening test.
Why would robots want to mimic spiders? So they can jump, according to robotics professor Mostafa Nabawy, during his keynote speech at the Industry 4.0 event. This summit had been set up so that academics could showcase their ideas and theories for what they call ‘the next Industrial Revolution’. This concept centres on the role of upcoming technology in the progression and advancement of global industry – robotics included. Dr.
Conditions such as heart disease are strongly associated with arterial damage and obstruction with cholesterol plaques and the biochemical factors that may contribute to them.
These factors are in turn related to certain genes that may determine the overall susceptibility to heart disease in some patients. Conversely, other people appear to be more resistant to cholesterol plaque formation due to specific genetic mutations.
Recent reports suggest that the level of consensus among scientists working in relevant fields on the subject of climate patterns is 97%.
This suggests that the body of evidence they are generating or working on indicates an authentic trend in one specific direction.
Using neuroscience to assess the perceptions of others in more and more direct ways may seem possible, but only in the realms of science fiction.
But now, a team of Canadian researchers have brought such technology closer to reality through the conversion of visual data from human participants into corresponding images on a screen.