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The molecular mechanism used by many bacteria to kill neighboring cells has redundancy built into its genetic makeup, which could allow for the mechanism to be expressed in different environments, say researchers at Penn State and the University of Wisconsin-Madison. Their new study provides insights into the molecular mechanisms of competition among bacteria. "Many organisms, including humans, acquire bacteria from their environment," said Tim Miyashiro, a biochemist and molecular biologist at Penn State and the leader of the research team. "These bacteria can contribute to functions within the host organism, like how our gut bacteria help us digest food. We're interested in the interactions among bacteria cells, and between bacteria and their hosts, to better understand these mutually beneficial symbiotic relationships." Cells of the bioluminescent bacteria Vibrio fisheri take up residence in the light organ of newly hatched bobtail squid. At night, the bacteria produce a blue glow that researchers believe obscures a squid's silhouette and helps protect it from predators. The light organ has pockets, or crypts, in the squid's skin that provide nutrients and a safe environment for the bacteria. "When the squid hatches, it doesn't yet have any bacteria in its light organ," said Miyashiro. "But bacteria in the environment quickly colonize the squid's light organ." Some of these different bacteria strains can coexist, but others can't. "Microbial symbioses are essentially universal in animals, and are crucial to the health and development of both partners," says Irwin Forseth, a program director in the National Science Foundation's Division of Integrative Organismal Systems, which funded the research. "The results from this study highlight the role small genetic changes can play in microbe interactions. Increased understanding will allow us to better predict organisms' performance in changing environments."

Image credit: Andrew Cecere

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A new study shows that graphene sheets can block the signals mosquitoes use to identify a blood meal, potentially enabling a new chemical-free approach to mosquito bite prevention. Researchers showed that multilayer graphene can provide a twofold defense against mosquito bites. The ultra-thin yet strong material acts as a barrier that mosquitoes are unable to bite through. At the same time, experiments showed that graphene also blocks chemical signals mosquitoes use to sense that a blood meal is near, blunting their urge to bite in the first place. The findings suggest that clothing with a graphene lining could be an effective mosquito barrier.

Image credit: Hurt Lab/Brown University

New sensors to monitor storm surge on bridges

How can employees stay motivated and productive while teleworking during the COVID-19 crisis?

The post Keep calm and carry on working (remotely) appeared first on WeLiveSecurity

Getting cybersecurity right in the work-from-home world can feel daunting. ESET Chief Security Evangelist Tony Anscombe shares 6 best practices that will steer you in the right direction.

The post 6 tips for safe and secure remote working appeared first on WeLiveSecurity

As work from home is the new norm in the coronavirus era, you’re probably thinking of enabling remote desktop connections for your off-site staff. Here’s how to do it securely.

The post Work from home: Securing RDP and remote access appeared first on WeLiveSecurity

While in France, a citizen of Brazil who resides in California books a bungee jump in New Zealand. Is it a leap of faith into the unknown, for both the operator and the thrill-seeker?

The post Is “global privacy” an oxymoron? appeared first on WeLiveSecurity

The tool, which comes after a similar effort by Google, looks at how people’s traveling behavior has changed since the start of the pandemic

The post Apple releases mobility data to help combat COVID‑19 appeared first on WeLiveSecurity

In worst-case scenarios, some vulnerabilities could even allow attackers to take control over the central units and all peripheral devices connected to them

The post Serious flaws found in multiple smart home hubs: Is your device among them? appeared first on WeLiveSecurity

ESET researchers discover, and play a key role in the disruption of, a 35,000-strong botnet spreading in Latin America via compromised USB drives

The post Following ESET’s discovery, a Monero mining botnet is disrupted appeared first on WeLiveSecurity

An unknown threat actor is exploiting vulnerabilities in plugins for which patches have been available for months, or even years

The post Almost a million WordPress websites targeted in massive campaign appeared first on WeLiveSecurity

Password recycling or using easy-to-guess passwords are just two common mistakes you may be making when protecting your digital accounts

The post 5 common password mistakes you should avoid appeared first on WeLiveSecurity

As you rush to buy something for your mom, con artists will be trying to make a dent in your wallet. Here are some common types of fraud to look out for not only this Mother's Day.

The post Scams to watch out for not just this Mother’s Day appeared first on WeLiveSecurity

US-based fintech Namogoo will integrate incentive platform

My new book LOSERTHINK, available now on Amazon https://tinyurl.com/rqmjc2a Content: There WAS…a genuine coup attempt Governor Abbott’s Coronavirus strategy CNN promotes their choice for Biden’s VP Hoaxes, hoaxes and hoaxes Vitamin D and groups vulnerable to coronavirus If you would like to enjoy this same content plus bonus content from Scott Adams, including micro-lessons on […]

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My new book LOSERTHINK, available now on Amazon https://tinyurl.com/rqmjc2a Content: The Vitamin D potential for reducing risk of coronavirus Ted Cruz continues to impress and entertain General Flynn coverage contrast, FOX versus CNN Nate Silver’s coronavirus analysis insights Press Secretary Kayleigh McEnany’s zingers If you would like to enjoy this same content plus bonus content […]

The post Episode 963 Scott Adams: Reviewing the Two Movies of Reality and the New Press Secretary’s First Days appeared first on Scott Adams' Blog.

With the recent 22% rise in the price of uranium, Peter Epstein of Epstein Research considers the upside for Skyharbour's holdings in the Athabasca Basin.

With the supply/demand balance moving in favor of miners, the outlook for uranium stocks is the brightest it has been in years, according to McAlinden Research Partners.

Greenbriar Capital has signed an agreement for the design and construction of the Caribbean's largest solar project.

Adopting the Green Economy approach will reap greater environmental, social and economic benefits, compared with a society that focuses on economic growth as the measure for future development, according to a recent UN report. Using two per cent of global GDP to ???green??? key sectors could be enough to trigger the transition towards a green economy.

Hypoxia (low levels of oxygen) is widespread in the coastal waters of the Baltic Sea, according to recently published research. The trend of increasing hypoxia since the 1950 is alarming, although improvements can be seen in some areas as a result of measures to reduce inputs of organic material.

Using ???cool??? materials to construct roads and walkways is an effective way of lowering urban temperatures to make cities more comfortable in hot weather. According to a recent study, surface temperatures were reduced by 12??C and ambient temperatures were reduced by 1.9??C after cool pavements were installed in a city park in Greece.

The last two decades have seen a series of new construction waste policies management in Hong Kong. One of the most significant is an offsite construction waste sorting (CWS) programme which, since its implementation in 2006, has separated 5.11 million tonnes of construction waste into different materials. The researchers suggest that the study provides an important reference for other countries working to minimise construction waste.

Even small areas of semi-natural vegetation, farmlands and abandoned farmlands provide important ecosystem services in urban environments. However, there is widespread loss of these non-urbanised areas (NUAs) owing to poor planning and urban sprawl. A new five-step process has now been developed that can inform effective planning to protect and enhance the value of urban green spaces.

Levels of air pollution significantly increase on the island of Svalbard in the Norwegian Arctic when tourist cruise ships are present, according to a recent study. With shipping levels rising in the region, the researchers recommend that stricter emissions regulations are introduced in order to limit the impact of pollution on the Arctic environment.

Current knowledge on the availability of mineral resources is explored in a recent study, which focuses on phosphorus as a key example. Static measures of availability, such as the consumption-to-production ratio, are useful as early warning signals, the researchers suggest, but more dynamic indicators that consider technological development and population change are needed to better inform policy.

A recent study compared the decentralised treatment of pharmaceutical contaminants in wastewater at hospitals with centralised treatment at conventional and upgraded wastewater plants. The results suggest that additional (post) treatments may not always provide significant benefits.

Blue-green algae, or ???aquatic cyanobacteria???, can produce harmful toxins and present a serious health hazard when they bloom in large numbers. Researchers from Germany have now identified plant species that could be used to sustainably treat water by removing such cyanobacterial toxins.

Mediterranean red coral (Corallium rubrum), already endangered due to over-harvesting, is likely to suffer still further under increasing ocean acidification as a result of rising CO2 emissions. Research has shown that under more acidic conditions the structural development of red coral skeletons is abnormal and growth rate is reduced.

Density in the urban environment can encompass a multitude of factors such as population or dwelling density or the density of green areas. A new study surveyed professionals regarding how decisions on urban density are made, and has revealed that many feel that developers make most of these decisions, but that local authority planners should have more influence.

Demonstration projects can represent a critical intermediate step between research and development (R&D) and large-scale commercialisation; yet many involving new sustainable technologies fail. In order to map the internal and external factors that enable or prohibit demonstration projects from reaching their goals, a case study of 21 projects was conducted. Qualitative data collected from funding applications and interviews were analysed to identify key themes. Based on these findings, the study proposes a process model outlining the key activities for setting up a new demonstration project.

As 3D printing, also known as additive manufacturing (AM), begins to replace conventional manufacturing, the environmental impacts of its implementation must be assessed. This study conducted a life cycle assessment (LCA) to investigate the environmental and resource implications of using AM to manufacture the metal parts of an engine in a light distribution truck. In the LCA, the impacts of both present and possible future states of AM technology were compared with current conventional manufacturing. The results suggest that there are potential environmental and resource benefits1 to AM technologies, but that these benefits rely on the achievement of a clean energy source and further technological development.

While cities worldwide are expanding so is the significant carbon dioxide footprint of urban transport. Consequently, there is an urgent need for sustainable urban mobility solutions. A thorough analysis of the variables and dynamics of urban mobility in cities can aid in planning sustainable mobility policy. This study used a new system of classification by type (typologisation) relevant to urban mobility in global cities, with data from 331 cities in 124 countries covering 40% of the global urban population (as of 2016).