Monday, April 21, 2014

Scientists at Chicago’s Field Museum and New York’s American Museum of Natural History have discovered three new species of yellow-shouldered bats, genus Sturnira, in the Neotropics. On Wednesday open-access journal ZooKeys published their paper on two of the new species, Sturnira bakeri and Sturnira burtonlimi. The two new species were previously confused with S. ludovici, and S. lilium and S. luisi, respectively. With the discovery, genus Sturnira now has the most species of any genus in family Phyllostomidae, the leaf-nosed bats.

Species S. bakeri was named after Dr. Robert J. Baker, who “has made enormous contributions to our [Authors of the ZooKey paper] understanding of bats, particularly to the evolution of Neotropical phyllostomids”; and S. burtonlimi after Dr. Burton K. Lim, who “collected the type series of this species and has made many other important collections throughout the Neotropics and beyond”, the authors noted in the paper.

Within the New World tropics, the distribution range of the genus, the new species’ known living areas are in Costa Rica and Panama for S. burtonlimi, and Western Ecuador for S. bakeri. The researchers identified differences between different specimens, including those in their teeth, skull shapes, and DNA sequences.

Wikinews interviewed one of the chiropterologists, Paúl M. Velazco of the American Museum of Natural History, about the study.

((Wikinews)) The Sturnira genus now has 22 species, over 1.5 times larger than it was a year ago (14 species). Who contributed to this change? Did you participate throughout the entire process, or only the discovery of the last 2 species?

Paúl M. Velazco: The last Mammal Species of the World (Simmons, 2005) recognized 14 species for Sturnira. Since then three new species have been described [S. sorianoi Sánchez-Hernández et al., 2005; S. koopmanhilli McCarthy et al., 2006; and S. perla Jarrín-V. and Kunz, 2011] and one subspecies was elevated to the species level (S. hondurensis) by Gardner (2008). This brought the number of species of Sturnira to 18 by 2011. Along with my coauthor Bruce Patterson, we generated the most comprehensive phylogeny of the genus. For this we sequenced two nuclear and three mitochondrial genes from the liver or muscle tissue that had been frozen or preserved from each bat specimen, isolating nearly 5,000 base pairs of DNA. These sequences were obtained from specimens we have collected in the past (38) and from tissues we borrowed from different natural history collections. We published this phylogeny last year in the journal Molecular Phylogenetics and Evolution. Results of this study found that two subspecies of Sturnira lilium should be recognized as valid species (S. parvidens and S. paulsoni). Additionally we found three new species, two of them described in the ZooKeys paper. The third one hopefully will be published later this year.

((WN)) The genus is called Sturnira Gray in the paper. I’ve not seen extra adjectives in genus names, before. What is the context for such name?

PMV: Usually in papers that deal with taxonomy and nomenclature, the first time that a genus or species is mentioned in text is accompanied by the authority that describes that taxon. In the case of Sturnira, it was Gray in 1842 that named the genus.

((WN)) What caused your initial interest in the question in the genus? When did you become interested?

PMV: I have been studying bats for the past eighteen years and I am especially interested in the family Phyllostomidae that is endemic to the Neotropics. This family includes more than 160 species. It is the most diverse family of bats in the Neotropics, which together exhibits more variation in morphological features and feeding ecology than any other family-level group of mammals. Phyllostomid bats exploit an unusually diverse array of feeding habits including sanguivory, insectivory, carnivory, omnivory, nectarivory, pollennivory, and frugivory. Because of all mentioned before, phyllostomids are a really interesting group to work with. Sturnira and Platyrrhinus are members of this family.

((WN)) The paper mentions that the genus is now the most speciose genus in the Neotropical family Phyllostomidae. What genus did it beat? How many species does it include?

PMV: The other genus with the most species in the family is Platyrrhinus. Currently, it has 20 species, but soon it will increase to 21. Along with another colleague, Burton Lim, we have a paper in press describing a new species based on molecular and morphological data from the Guianan Shield.

((WN)) What equipment did you use?

PMV: For the ZooKeys paper, we examined several specimens under the stereoscope. The molecular phylogeny gave us the separation between species, from there our job was to focus on finding morphological differences between these groups.

((WN)) Did you conduct field study to identify the species’ habits? If so, where and how did you do that?

PMV: I have done fieldwork in Belize and Peru, and my coauthor did field work in Brazil, Ecuador, and Peru, where we collected several specimens of Sturnira (including the third species that has not been described yet). But the two species that were described in the ZooKeys paper are based on specimens collected by our colleagues Dr. Robert Baker from Texas Tech University and Dr. Burton Lim from the Royal Ontario Museum.

((WN)) How do you isolate of the living area of the new species from the living area of the old species?

PMV: We used the phylogeny of Velazco and Patterson 2013 (Molecular Phylogenetics and Evolution) as a framework for this.

((WN)) How long did the study take? What has been the most time-consuming activity?

PMV: It took almost a year. The most time consuming part was spending several hours behind the stereoscope looking for the diagnostic characters.

((WN)) Who participated in the study? What were their roles?

PMV: Dr. Bruce Patterson from the [American] Museum of Natural History and I. I was the one in charge of finding the diagnostic characters and together we both worked on the manuscript.

((WN)) Who do you collaborate with internationally about your study?

PMV: For this study I collaborated directly with Dr. Bruce Patterson from the Field Museum of Natural History, but studies like this cannot be completed without the contribution of scientific collections. We used specimens from the American Museum of Natural History, Carnegie Museum of Natural History, Louisiana State University, Museum of Southwestern Biology, Museo de Historia Natural de la Universidad Nacional de San Marcos, Museo de Zoología of the Pontificia Universidad Católica del Ecuador, Museum of Vertebrate Zoology at Berkeley, Royal Ontario Museum, Texas Tech University, and the National Museum of Natural History.

((WN)) What future research do you plan?

PMV: To keep doing what I love, which is going to the field, working at collections, and collaborating with the wonderful collaborators I have, all of this is an effort to try to understand bat diversity and evolution in the Neotropics, especially why phyllostomid bats are so successful at this. There is still much to discover, and hopefully we could, in time, implement conservation actions for species that have small distributions.
Retrieved from “https://en.wikinews.org/w/index.php?title=Wikinews_interviews_Paúl_M._Velazco_about_new_yellow-shouldered_bat_species&oldid=4567507”
">
2012 Report on Gender Equality and Development credits Icelandic parental policy with ‘hopeful’ changes

Thursday, September 26, 2013

Tuesday, World Bank released the 2012 World Development Report on Gender Equality and Development. In discussing Iceland, it suggests mandatory paid parental leave for mother and father have played an important role in changing norms in the country. Parents have a government mandated nine months leave, three for the mother, three for the father and three to to distribute between the two. Leave is paid at 80% of their wages. The report describes the changes in gender relations in Iceland as “promising” in terms of impact at work and at home.

Iceland’s boys and girls mean scores for the Programme for International Student Assessment mathematics test were nearly identical with boys just edging out girls with both scores around 510. Girls outperformed boys on the literacy test with a mean score of approximately 525 to 480. Iceland’s girls mathematics performance was similar to that of girls from Estonia, Germany and Belgium. Their performance on literacy was similar to Sweden, Poland, Switzerland, Estonia and Belgium.File:MargretSverrisdottir.jpg

Mortality rates in Iceland for 1,000 people aged 15–60 sits at 56, significantly better than the United States at 107, China at 113, India at 213, Iraq at 285, Afghanistan at 479, Malawi at 481 and Zimbabwe at 772. One of the reasons the report cites for Iceland’s relatively low mortality rate is it not located in a conflict country or in an HIV/AIDS affected country.

Iceland was one of 23 countries that currently have over 30% of its Parliamentarians who are female. Other countries with over 30% representation include Rwanda, Argentina, Cuba, Finland, the Netherlands, and Sweden. In the mid-1990s, there were only 5 countries. The report cites the 1983 creation of the Women’s Alliance, an all women’s political party, as bringing additional attention to women’s issues and deliberately attempting to increase the representation of women in Icelandic politics.

Despite some of the good news highlighted in the report about Icelandic women, there exists a systematic gender difference in earning potential. Icelandic women in both the private and public sector earn approximately 22% less than their male counterparts. Icelandic men have slightly more access to the Internet than Icelandic women by about 2%. Despite this slight disadvantage for Icelandic women, it is much better than some countries where the percentage differences are much greater. These countries include Austria, Croatia, Greece, Italy, Portugal, Azerbaijan, Serbia, Turkey, and Macedonia.

Retrieved from “https://en.wikinews.org/w/index.php?title=2012_Report_on_Gender_Equality_and_Development_credits_Icelandic_parental_policy_with_%27hopeful%27_changes&oldid=4464119”

Do It Yourself Insecticide Products

By Eliz Guide

There are multiple insecticide products on the market today. Some are made by major brands that we all know. Other insecticide products are made by smaller and less known companies, but have the same active ingredients inside. Many people are now looking to use natural insecticide products as well.

Lets take a look at what the differences are between chemically manufactured pest control products and natural insecticides to see what the best choice for you may be when it comes to choosing a pest control product.

First, let’s take a look at chemically manufactured insecticide products. Most companies that manufacture pest control supplies, use some of the very same chemicals. Some of the most commonly used chemicals are Propoxur, Chlorpyrifos, Gyfluthrin and Pynamin Forte. Propoxur is used to kill cockroaches by luring them out of their hiding spaces. Their bodies then come in contact with the chemical and it kills them.

This is a long lasting chemical. Chlorpyrifos is another commonly used cockroach killer that kills on contact. It is also effective against other common crawlers and lasts anywhere from weeks to months.

[youtube]http://www.youtube.com/watch?v=00vfKgLsM-M[/youtube]

Gyfluthrin kills pests on contact and is most effectively used for fleas and ticks. Pynamin Forte is a safe mosquito and fly killer. One main reason that people choose to use chemically manufactured insecticides is that they work almost immediately. They also last for long periods of time. Many are safely used around pets and children.

Now lets take a look at natural insecticide products. One of the latest revelations in this area is the use of American Black Walnut trees. The tree releases tannic acid, called Juglone. It is a reddish yellow substance that comes out of the leaves. Some scientists believe it can also be found in the roots of the tree.

It can affect plants and trees in a sixty to eighty foot area. They have found that the plants most affected by this tree are tomatoes, alfalfa, potatoes, apples, blackberries, rhododendrons, mountain laurels and pine trees. The substance released by the tree is known to repel various garden insects. Many people that have used this as an insecticide, have also learned that even taking tree branches and placing them around their house can help safely eliminate fleas.

Earth Friendly insecticides are made from plant derivatives. One commonly used natural insecticide is the Pyrethrum, which is made from dried flower heads. The plant looks similar to the Daisy flower. This insecticide does not discriminate, however. It will kill bad insects as well as good ones, so you would want to be careful how you use it.

It is highly effective though. Another commonly used natural insecticide is Potenone. It is a byproduct of specific types of South American plants. It is used on fruit crops and row crops. It is used for killing aphids, cockroaches, houseflies and mosquitoes. One thing to remember is that natural does not equal harmless. Many manufactures use vinegar as a base to their solutions, and that can cause irritation if it comes in contact with the skin or eyes.

Another thing to remember is that most natural insecticides do take about twice as long to be effective. Once you have used the product, you may not see results for two to four days. Most of these products do not kill on contact. However, you may be choosing to use natural insecticides because it is the more green approach to insect repellents, and it is friendlier to the environment.

After looking into the many insecticide products that are on the market, you should feel good about the choice you make. It is also nice knowing that there are such a wide variety of choices for you select from. Whether you choose the chemically manufactured insecticide or go the more natural route, choose what will work best for you and your family.

About the Author: Redwood Chemical is an expert in Insecticides , pest control and roach control

Source: isnare.com

Permanent Link: isnare.com/?aid=753348&ca=Business

Microsoft to track legal marijuana with new partner Kind Financial

">
Microsoft to track legal marijuana with new partner Kind Financial
Author: Admin Posted under: Uncategorized

Sunday, June 19, 2016

Microsoft announced on Thursday they are partnering with KIND Financial to help governments track the production and distribution of legal marijuana. Kind Financial, a California-based start-up company, began selling its Agrisoft Seed to Sale software three years ago. Microsoft is admitting Kind’s software on the Government portion of its Azure cloud service.

Although Kind Financial CEO David Dinenberg stressed to The Guardian they “absolutely do not touch the plant”, his company does business with growers and distributors of marijuana, as well as the governments that regulate it. State law in twenty-five US states — but not US federal law — has legalized marijuana, whether medicinally or for recreational use. Kimberly Nelson, Microsoft executive director of state and local government solutions, said they expect significant demand for technology to help states make sure cannabis distribution within their state is done according to their laws.

Kind also provides kiosks similar to automated tellers (ATMs) to facilitate marijuana transactions in dispensaries. The distribution of marijuana is often done only with cash or through machines like the ones Kind offers since many banks in the United States shy away from the marijuana industry entirely. Microsoft is not interacting with this part of Kind’s operations, however.

Microsoft and Kind will apply for contracts with state governments for their software. Currently, they have applied to Puerto Rico, a US territory, where medical marijuana has recently been made legal. BioTrackTHC, a company similar to Kind Financial, already has contracts with Washington, New Mexico, and Illinois.

Dinenberg said his company’s partnership with Microsoft is a major step in advancing the legitimacy of cannabis-related businesses.

Retrieved from “https://en.wikinews.org/w/index.php?title=Microsoft_to_track_legal_marijuana_with_new_partner_Kind_Financial&oldid=4227540”
Comment (0)

Sunflower oil saves at-risk newborns from infection

">
Sunflower oil saves at-risk newborns from infection
Author: Admin Posted under: Uncategorized

Saturday, March 5, 2005Simply massaging low birth weight babies with sunflower seed oil can protect them from potentially fatal infections.

Infections and complications from preterm birth cause more than half of all neonatal deaths, and very low birth weight babies are particularly vulnerable.

Preterm babies have immature skin that lacks a protective film called vernix that has antimicrobial properties.

In some countries, such as India, newborns are routinely massaged with mustard oil.

But mustard oil, says Gary Darmstadt of John Hopkins University in Baltimore, Maryland, can delay recovery of the skin barrier and have a toxic effect on skin.

Seeking an alternative low-cost product, Darmstadt and colleagues experimented with sunflower oil and an ointment called Aquaphor that comprises petrolatum, mineral oil, mineral wax and lanolin.

The researchers tested the treatments on 497 newborns (72 hours old or less) and preterm babies (less than 33 weeks gestation) between 1998 and 2003 in Bangladesh.

They applied the treatments to the entire body besides the scalp and face three times daily for the first 14 days and then twice daily until discharge.

Babies treated with sunflower oil were found 41% less likely to develop infections than controls.

“Evidence is emerging that the skin is much more important as a barrier to infection than previously recognized, particularly in preterm infants whose skin is underdeveloped,” says Darmstadt. “The good news is that treatment is available to strengthen the function of the skin as a barrier in these vulnerable newborns.”

Retrieved from “https://en.wikinews.org/w/index.php?title=Sunflower_oil_saves_at-risk_newborns_from_infection&oldid=1108961”
Comment (0)

Camelot Castle Hotel A Fairy Tale Wedding

Author: Admin Posted under: Outdoor Furniture

By John Callahan

A wondrous moment of exchanging vows in a castle just like a King and Queen having that festive day celebrated with all their people. Everyone gets so excited and anticipates a lasting romance from their exalted sovereign. People who will be invited to feast are people of the same preeminent status and so it is an honor to be listed as a spectator of the matrimonial ceremony. This privilege is offered by Camelot Castle Hotel for couples who would like their wedding day held at such marvel. Reveal the brilliance of this bond in merriment with family and friends. Share a bounty of meal that has been perfectly prepared in its most delectable way.

The couple will pleasure themselves with the splendor of the scenery. Surrounded by the Cornish coastline and richness of the land of Tintagel expectantly couples guests will be envious and will feel the luxurious atmosphere that once King Arthur and his Knights have walked upon. It is breathtakingly the finest location for such an occasion either couple would desire to have an outdoor panoramic view of the Atlantic Ocean with the gust of wind touching their faces or enjoy the protection of the interior of the Castle if ever the weather is not as ideal.

[youtube]http://www.youtube.com/watch?v=dAa6bOWB8qY[/youtube]

Camelot Castle Hotel envelopes all this magnificence to capture that cherished day when lovers will announce to their loved ones that they agreed to bind each other in a promise of love that will last a lifetime. The entire castle absolutely captivates the aristocracy and historic design that contemporary people would be in awe for. Such an incredible scenery that nature could bequeath. After all the days event and the couples visitors will abscond to their own refuge the newly wed can then continue their fte in the majestic room that will further proclaim their love for one another. Or if they may wish, depending on the couples preference they may opt to conclude the day at the warmth of the Camelot Castle Hotels fireplace.

And as they start their first day as husband and wife, they are invited to opt for an appetizing breakfast in their room built with elegance in every corner and pieces of furniture that accentuates even more the ancient setting that Camelot Castle Hotel submits to their exalted guests. They can also trek the vast location of the greenery of the land or enjoy a dip in the ocean. Capture the entirety of the vicinity in a readily picture perfect sight.

The Hotel invites couples to share that precious day and spend at the glory of their sanctuary. The couple together with their guests will definitely fell in love in the spectacle of a Fairy tale like venue. The bride will be like Cinderella on that chaste white wedding dress and just like all of the other princesses who were the most beautiful woman on that day when their prince summoned everyone that is dear to them to witness the time they pledge to love each other for eternity.

About the Author: Are you looking for more information regarding

camelot castle hotel

? Visit

weddingspot.co.uk/hotel-wedding/camelot-castle–e17428

today!

Source:

isnare.com

Permanent Link:

isnare.com/?aid=727642&ca=Marriage

Comment (0)

U.S. outlaws online gambling

">
U.S. outlaws online gambling
Author: Admin Posted under: Uncategorized

Saturday, October 14, 2006

Over the weekend, millions of Americans faced the new ban of online gambling.

The legislation was attached by Rep. Bill Frist to the Port Security bill.

Many of the public companies that offer online gambling have been quick to react and give their outlooks on the legislature. Party Gaming and 888 among others have said that they will shut down all U.S. operations if President Bush signs the bill into law. This sent online gambling stocks tumbling with Party Gaming leading the way with a 55% decrease in market value.

The people involved are awaiting to see what happens over the next few weeks.

Retrieved from “https://en.wikinews.org/w/index.php?title=U.S._outlaws_online_gambling&oldid=1450494”
Comment (0)

Colleges offering admission to displaced New Orleans students/OH-WY

">
Colleges offering admission to displaced New Orleans students/OH-WY
Author: Admin Posted under: Uncategorized
See the discussion page for instructions on adding schools to this list and for an alphabetically arranged listing of schools.

Due to the damage by Hurricane Katrina and subsequent flooding, a number of colleges and universities in the New Orleans metropolitan area will not be able to hold classes for the fall 2005 semester. It is estimated that 75,000 to 100,000 students have been displaced. [1]. In response, institutions across the United States and Canada are offering late registration for displaced students so that their academic progress is not unduly delayed. Some are offering free or reduced admission to displaced students. At some universities, especially state universities, this offer is limited to residents of the area.

Retrieved from “https://en.wikinews.org/w/index.php?title=Colleges_offering_admission_to_displaced_New_Orleans_students/OH-WY&oldid=4617832”
Comment (0)

Mortgage Foreclosure | How Does A Mortgage Foreclosure Work?}

Author: Admin Posted under: Finance

Submitted by: Mark Aucamp

Mortgage Foreclosure

Mortgage foreclosure is the process of barring, closing out or taking away. Mortgage foreclosure is the process of barring, closing out or taking away. A judicial remedy that technically brings a mortgage to an end and vests the mortgagors (the borrowers) estate or interest in land in the mortgagee. A process instigated in the event of a default by the mortgagor. The mortgagee (i.e. the lender or anyone who has acquired the rights of to the mortgage) takes an action to force the mortgagor to repay the outstanding debt, or risk the loss of the mortgaged property. This action may be referred to as barring or precluding the mortgagors equity of redemption, i.e. barring his right to reclaim the mortgaged property. The termination of a mortgagors equity of redemption without possibility of recall, 2 Bl Comm 159.

Mortgage Foreclosure and Power of Sale are:

Strictly speaking, mortgage foreclosure is the process by which a mortgagee has a right to claim title to the property when a mortgagor is in default in paying the mortgage debt (but not before). It may be distinguished from any other procedure by which the mortgagee may seek to have the property sold and merely lay claim to the proceeds of sale. Nonetheless, foreclosure may be used to refer to any process by which the mortgagee seeks to cut off, beyond recall, the mortgagors right to the mortgaged property.Thus, foreclosure includes the process by which a mortgagee may seek a sale of the property by recourse to a court order, or by exercising his power of sale; as well as taking possession of the mortgaged property and holding possession for the period allowed for redemption (in the US called foreclosure by entry and possession or foreclosure by writ of entry).

[youtube]http://www.youtube.com/watch?v=VH0V9akU7jI[/youtube]

In common law, a right to foreclosure arises when the date stipulated for the redemption of the mortgage loan has passed. If there is no specified date for redemption, or if the mortgage provides for repayment of the entire debt on demand, mortgage foreclosure proceedings may be commenced a reasonable time after the mortgagee has demanded repayment (Toms v Wilson (1862) 4 B & S 442, 122 Eng Rep 524).

Mortgage Foreclosure as a Remedy

Foreclosure is a remedy available to any legal or equitable mortgagee (whether the original mortgagee or an assignee, and to any first or subsequent mortgagee); but not to a chargee, because a charge does not grant a right to any interest in land.

In English law, foreclosure may be instigated only by application to the High Court and the action must involve all parties interested in the mortgaged property. The court initially may issue a decree of foreclosure nisi and give the mortgagor time to pay (usually six months). At that stage all subsequent mortgagees also have the right to repay the delinquent mortgage, or else lose their security, i.e. be foreclosed by the prior mortgagee. Hence the expression, redeem up, foreclose down. If the debt is not repaid by a time specified by the court, the court may then grant a foreclosure absolute, which vests the mortgagors fee simple or term of years in the mortgagee, free of the mortgagors right to redeem and the rights of all subsequent mortgagees, although any prior or superior mortgages remain in place (Law of Property Act 1925, ss. 88(2), 89(2)).

In the US, mortgage foreclosure may take a number of different forms depending on the jurisdiction. It may be: (i) strict foreclosure; (ii) foreclosure by a writ of entry and possession; (iii) foreclosure by action; or (iv) foreclosure under a power of sale (55 Am.Jur.2d., Mortgages (Rochester, NY), 512, p. 187).

In some jurisdictions, after a public sale, the mortgagor may be entitled to exercise a statutory right of redemption. Thus, mortgage foreclosure, or simply foreclosure, may be used in a more generic sense for the termination of all rights of the mortgagor or of his grantee in the property covered by the mortgage; [More]

Bibliograhical References Mortgage Foreclosure:

Note:

Terms in bold, including mortgage foreclosure, power of sale, equity of redemption , the French term hypothque, and all the related terms are defined and explained in detail in our Encyclopedia of Real Estate Terms, Third Edition; as well as ONLINE.

About the Author: Damien Abbott, B.Sc.,FRICS is the author of the Encyclopedia of

Real Estate Terms

, now in its 3rd Edition and available ONLINE. Damien is an expert in providing definitions for Real Estate terms and today’s term is

MORTGAGE FORECLOSURE

. http://realestatedefined.com/blog/mortgage-foreclosure/

Source:

isnare.com

Permanent Link:

isnare.com/?aid=1645646&ca=Finances}

Comment (0)

Slippery business: Materials scientists invent new coating for self-cleaning, water-efficient toilets

">
Slippery business: Materials scientists invent new coating for self-cleaning, water-efficient toilets
Author: Admin Posted under: Uncategorized

Thursday, November 21, 2019

In findings published on Monday in Nature Sustainability, researchers mostly from Pennsylvania State University (Penn State) in the U.S. reported the invention of a new coating that could reduce bacterial growth, water waste, and odor when sprayed onto an ordinary house toilet by rendering its surface too slippery for anything to remain attached for long.

According to the research team, half of all people worldwide are affected by limits on their water supply, while daily fresh water usage to flush the planet’s roughly 1 billion toilets and flush urinals is upwards of 141 billion liters (about 37 billion U.S. gallons, 31 billion imperial gallons); which they note is several times larger than the total rate of water consumption for the continent of Africa. Inventions that render the facilities more water-efficient, they reason, could have a profound impact on wastewater management, sustainable water use, and sanitation, possibly cutting the amount of water used to flush waste by, reportedly, a factor of two.

“Our team” study co-author Tak-Sing Wong said in a press release “has developed a robust bio-inspired, liquid, sludge-, and bacteria-repellent coating that can essentially make a toilet self-cleaning[.]” Wong is Penn State’s Wormley Early Career Professor of Engineering and an associate professor of mechanical engineering and biomedical engineering.

Co-developer Jing Wang recounted, “When we put that coating on a toilet in the lab and dump synthetic fecal matter on it, [the synthetic fecal matter] just completely slides down and nothing sticks to [the coated surface.]”

The more something sticks to a surface, the more water it takes to rinse it off. The researchers reported inventing a coating good at resisting substances that are sticky and vary profoundly in viscosity across their mass—like human fecal matter. They also reported the coating repels bacteria, which has implications for preventing the spread of disease and certainly reduces smells.

The invention, called a liquid-entrenched smooth surface (LESS) coating, involves two separate treatments, both presented as suitable for spraying onto ceramics amongst other materials. The first spray is made of molecularly grafted polymers, specifically polydimethylsiloxane silicone, that Wang described as resembling human hairs — though vastly thinner — once it has dried on the target surface, which makes the surface very smooth. The second spray covers the target surface in silicone lubricant. According to the report, the two-spray process is complete in under five minutes and lasts for roughly 500 flushes before requiring reapplication. Existing treatments have tended to take hours to set.

Carl Hensman of the Bill and Melinda Gates Foundation, which offered a contest for redesigning the toilet some years ago, noted the ingredients in the sprays are also found in commonly used products like — in the case of the first spray — toothpaste, and are unlikely to pollute nearby water supplies; though he also remarked that, because the spray wears off, it was unlikely to be used widely in developing countries as the researchers claim to hope.

Wong and three of his co-authors have started a company, spotLESS Materials, to transform their invention into a product. He remarked, “As a researcher in an academic setting, my goal is to invent things that everyone can benefit from […] As a Penn Stater, I see this culture being amplified through entrepreneurship, and I’m excited to contribute.” They have received support from the Rice Business Plan Competition, Ben Franklin Technology Partners’ TechCelerator, Y-Combinator, and the United States’ National Science Foundation, Department of Energy, and Office of Naval Research.

Retrieved from “https://en.wikinews.org/w/index.php?title=Slippery_business:_Materials_scientists_invent_new_coating_for_self-cleaning,_water-efficient_toilets&oldid=4536045”
Comment (0)