Rhino behavior chaos
They are called “unicorns of the sea” sea rhino (Monodon Monoceros) are small whales found in the Arctic and famous for their long, single tusks. Narwhals are one of the most endangered species in the Arctic due to climate change, human activity and predation by invasive species – which is why it is so important to monitor Narwhal fish.
But according to Dr. Evgeny A. Podolskiy, a geophysicist from Hokkaido University in Japan: “While animal-borne ocean sensors continue to advance and collect more data, there is a lack of appropriate methods for analyzing records of irregular behaviour.”
Now, Podolskiy and Professor Mads Peter Heide‐Jorgensen, of the Greenland Institute of Natural Resources, have developed a new way to do this, using mathematical equations. Chaos Theory.
in New study Published in the magazine Computational Biology PLOSIn this study, they analyzed data from long-term monitoring of electronically tagged Narwhal fish, identifying previously undetected daily activity patterns and how they were affected by changing seasons.
The researchers anticipate that their new method may be particularly useful for assessing the challenges facing Arctic and other Arctic animals posed by climate change and sea ice loss.
Unlock the blade to breed the best peas
peas A good source of protein, starch, fiber and minerals and an important crop for Australian farmers – they are versatile and produce reliable yields across a range of environments and soil types.
An international team of scientists has used next-generation sequencing technology to map the genetic structure and variations of 118 genomes of cultivated and wild peas, revealing how peas have evolved so far and traits that breeders can take advantage of to improve crops.
says co-author Rajiv Varshni, a professor at the Center for Crops and Food Innovation at Murdoch University in Perth. “It fills the gap between previous basic models and modern genomics to advance research and improve pea yields.”
The results were published in natural genetics.
Growing living materials “engineered” to clean up pollution
Scientists have created self-assembling colonies, the size of fingernails, that resemble slime from engineered bacteria that can be programmed to absorb pollution from the environment, or to stimulate biological reactions.
They made this ‘self-designed’ living material‘, or ELM, using bacteria Caulobacter crescent. C. Crescent It has been genetically engineered to express a new version of one of its proteins, which they call BUD (bottom-up de novo).And theAs in from scratch), extracellular – secretion of the biopolymer matrix that gives the substance its viscous shape.
ELM grows in a beaker in about 24 hours and is strong enough to survive in a container on the shelf for three weeks at room temperature – which means it can be transported without refrigeration.
“The transformational aspect of ELMs is that they contain living cells that allow the material to self-assemble and self-repair in the event of damage. Furthermore, they can be further engineered to perform non-native functions, such as dynamic processing of external stimuli, says lead author Dr. Sarah Molinari, Synthetic biologist at Rice University in Houston, Ion, Texas.
The ELM device was able to successfully remove cadmium from the solution and was able to perform biological stimulation. authors studywhich was published in Nature ConnectionsFor example, ELM modification should be relatively simple for optical, electrical, mechanical, thermal, transport, and catalytic applications.
Global warming may affect astronomical observations
In contrast to astronomical observations by satellite, the quality ground telescope Observations depend on the clarity of the atmosphere. It makes sense, then, that telescope sites are chosen carefully – they are often built above sea level to reduce the amount of atmosphere above them, or in deserts where clouds and water vapor are less likely.
But scientists who analyze future climate trends based on high-resolution models of climate change have shown that climate change is likely to affect the ability of these observatories to examine the universe in the future, because they are only designed to operate under current site conditions.
“Although telescopes typically have lifetimes of up to several decades, site selection processes take into account atmospheric conditions only over a short period of time. Caroline Haslibacher, lead author of the study and researcher at the National Center for Competence in Research (NCCR) says PlanetS at the University of Bern in Switzerland.
According to their results, the main astronomical observatories – from Hawaii to the Canary Islands, Chile, Mexico, South Africa and Australia – are likely to experience an increase in temperature and water content in the atmosphere by 2050.
“Potential consequences of climatic conditions for telescopes include a greater risk of condensation due to increased dew point or malfunctioning cooling systems, which could lead to more atmospheric turbulence in the telescope’s dome,” concludes Haslebacher.
The results are published in New study in the magazine Astronomy and astrophysics.
Wearing a pedometer – even if you don’t look at it – can increase the number of steps
Apparently, there’s a surprisingly simple way to help increase your workout time: just hook up an activity monitor. According to new research published In the American Journal of Health Behavior People who wore a pedometer walked an average of 318 steps per day than those without a tracker.
Surprisingly, this is still the case if walkers do not have specific fitness goals or incentives or cannot even see how many steps the pedometer has kept.
“We wanted to find out, in the absence of goals and incentives, does fitness tracking simply change behavior?” Says co-author Bill Tyler, professor at the Marriott School of Business at Brigham Young University (BYU) in the US.
“It’s helpful for people to know that even without trying, just realizing that something is tracking your steps increases your activity.”