text:
Q: How do you check if a string contains abc?     static void Main(string[] args)
    {
        bool s = StringMethod("aBc");
        Console.WriteLine(s);
    }
    public static Boolean StringMethod(String s)
    {

        if (s.ToUpper() != "abc".ToUpper() && s == " ")
        {
            return false;
        }
        else
        return true;
    }

The method must answer true if the receiving text includes "abc" or "ABC" or AbC" (Upper or Lower Case not important) and false otherwise.
Ex: The method receive "foabc". It answer  true.
Ex: The method receive "iABCc". It answer true.
Ex: The method receive "aBCd". It answer  true.
Ex: The method receive "aBdc". It answer  false.
Any suggestions?

A: When comparing strings with other than a literal comparison, consider using overloads of the string class that take a StringComparison value or using a StringComparer to avoid creating unnecessary strings.
In your case, what you are looking for is something like this:
public static bool StringMethod(string s)
{
    return s.IndexOf("abc", StringComparison.CurrentCultureIgnoreCase) >= 0;
}


Many millions of Arabs have risked their lives in order to get rid of dictatorship. What started in Tunisia in December 2010 appeared to be an unstoppable wave of revolutions all over the Arab region. In the name of liberty, democracy, justice and dignity people toppled dictators inn Tunisia, Egypt, Libya and Yemen and enforced reforms elsewhere. And for sure this is not the end. Many reforms and changes will follow in these countries. Dictators will fall, not the least in Syria where day after day people are sacrificing their life in their struggle to get rid of this brutal regime.
After a revolution comes the challenge of reconstruction. It is not easy to reconstruct a society on the ruins of tyranny. The politicians of today inherited a true corrupted, dysfunctional and sometimes even non-existing state. From the history of other countries and regions in the world we know that the transition period from dictatorship to democracy, from corruption to justice and from oppression to freedom is a long and winding road.
In MENA countries we share common values, heritage and religions, but also many problems. How to create credible, well-functioning parties? How to create a good education system for all? How to reform the judicial apparatus? How to deal with the impatience of people who want to see immediate change? How to reform the police and the security services? How to defend the rights of the Palestinian people in creating their own state? These are just a few of the questions every leader in the Arab world has to deal with today.
That is the reason why we founded the Arabs for Freedom and Democracy. Countries that went through a revolution, want to cooperate with each other, exchange ideas, learn from each other's experiences and support each other for the benefit of the people of our countries. We are convinced that by connecting to each other we will be better capable of fulfilling the promises of the revolution: freedom, democracy, dignity, justice and human development. Only by holding strong on these principles, we will be able to guarantee a brighter future for all our citizens. Therefore we strongly believe in democracy, in freedom and in the idea of mutual cooperation between Arab states, but also worldwide. We will look for partners who stand by the same ideals in all Arab and other countries.
Our region has been deprived far too long of basic rights. Many people in the world even believed that Arabs were not interested in or even capable of revolting against dictators and embracing freedom and democracy. The Arab people, in particular the youth, have proven and are still proving every day that this disturbing way of thinking is wrong. They have given their lives for dignity. We as Arabs, see it as our duty to do everything in our capacity to give these martyrs what they have died for and to give back to the Arab people what it deserves: freedom and democracy.


text:
TSXV:CCE | FSE:D7H0 | OTC:CMRZF
The Ashram Rare Earth Element and Fluorspar Deposit
Blue River Tantalum and Niobium Project
Presentations & Press
Third party reports
Commerce Resources Corp. Announces Closing of Oversubscribed Private Placement
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June 26, 2020 – Commerce Resources Corp. (TSXv: CCE, FSE: D7H0) (the "Company" or "Commerce") announces that it has completed its previously announced non-brokered private placement (the "Offering"), as described in its News Release dated May 8, 2020, pursuant to which it has issued an aggregate of 6,686,939 units (each, a "Unit") at a price of $0.18 per Unit for gross proceeds of $1,203,649. Each Unit consists of one common share in the capital of the Company (each, a "Share") and one common share purchase warrant (each, a "Warrant"). Each Warrant is exercisable into one additional Share at a price of $0.24 per Share for a period of five years from the closing date. The Offering was oversubscribed by $203,649.
Company President Chris Grove states "I would like to express my sincere gratitude to the investors who have participated in this oversubscribed financing for Commerce Resources. This capital will be transformative in allowing us to complete top priority programs such as the impurity suppression, ahead of production, of an acid grade fluorspar sample, for delivery to industry as requested. We are very happy that long time shareholders participated so significantly, and we are very happy that new investors who understand that our Ashram REE/ Fluorspar Deposit benefits significantly from having simple mineralogy allowing us to use standard processing to great effect, found this to be an attractive investment too."
The Company paid cash finder's fees of $4,662 and issued 21,700 finder's warrants (each, a "Finder's Warrant") to certain finders in connection with the Offering. The Finder's Warrants have the same terms and conditions as the Warrants.
The aggregate gross proceeds from the sale of the Offering will be used to advance the developments of the Company's Ashram REE Deposit in Quebec and for working capital.
The securities issued under the Offering, and the shares that may be issuable on exercise of the Warrants and the Finder's Warrants, are subject to a statutory hold period expiring four months and one day from the date of closing.
Zimtu Capital Corp., a public company of which David Hodge and Chris Grove, directors and officers of the Company, are directors of, was issued 1,000,000 Units under the Offering which constitutes a "related party transaction" within the meaning of Multilateral Instrument 61-101 Protection of Minority Security Holders in Special Transactions ("MI 61-101"). The issuance to the insider is exempt from the valuation requirement of MI 61-101 by virtue of the exemption contained in section 5.5(b) as the Company's shares are not listed on a specified market and from the minority shareholder approval requirements of MI 61-101 by virtue of the exemption contained in section 5.7(a) of MI 61-101 in that the fair market value of the consideration of the securities issued to the related parties did not exceed 25% of the Company's market capitalization.
None of the securities sold in connection with the Offering will be registered under the United States Securities Act of 1933, as amended, and no such securities may be offered or sold in the United States absent registration or an applicable exemption from the registration requirements. This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful.
About Commerce Resources Corp.
Commerce Resources Corp. is an exploration and development company with a particular focus on deposits of rare metals and rare earth elements. The Company is focused on the development of its Ashram Rare Earth Element/ Fluorspar Deposit in Quebec and the Upper Fir Tantalum-Niobium Deposit in British Columbia.
For more information, please visit the corporate website at www.commerceresources.com or email info@commerceresources.com.
COMMERCE RESOURCES CORP.
"Chris Grove"
President and Director
Tel: 604.484.2700, Mobile 778.386.7620
Email: cgrove@commerceresources.com
Web: http://www.commerceresources.com
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Commerce Resources.

redpajama_set_name: RedPajamaCommonCrawl


text:
Australian rallies demand safe streets for women after Israeli student murder
This picture shows flowers during a vigil in memory of murdered Israeli student Aiia Maasarwe in Melbourne on Jan 18, 2019. (Photo: AFP / Allan LEE)
20 Jan 2019 02:19PM
MELBOURNE: Several thousand people marched through major Australia cities on Sunday (Jan 20) calling for safety for women after an Israeli exchange student was murdered in Melbourne.
The marches, part of the Women's March rallies held around the world in support of women's rights, gathered some 3,000 people in Sydney, who in their chants demanded safe streets for women in Australian cities.
Aiia Maasarwe, 21, was killed when walking home after a night out with friends in Melbourne, Australia's second-largest city, earlier this week. A 20-year-old man was charged with her murder.
Maasarwe's death recharged outrage over violence against women after 22-year-old Eurydice Dixon was killed in Melbourne while walking home after performing at a comedy show in June.
Thousands of people gathered at vigils for Maasarwe on Friday and continued to lay flowers at the site of her death. A special tram carrying only flowers late on Friday followed the route of Maasarwe's final journey.
In Sydney on Sunday marchers held signs paying tribute to Maasarwe and other victims of violence. Television news showed women carrying signs: "For Aiia and for those who suffer silently" and "I wanna walk through the park in the dark".
"I don't want my daughter to grow up in a world where she's unsafe or she can't pursue the opportunities she wants and I march for my son because I don't want him to grow up in a world where toxic masculinity is acceptable," said Samantha Nolan-Smith, one of several hundred protesters in the Australian capital Canberra, reported Australian Broadcasting Corp.
In reaction to Maasarwe's death, Prime Minister Scott Morrison said his government would announce another "action plan" to stem violence against women ahead of an election expected by May, on top of AUS$350 million (US$252 million) that has already been committed.
Source: Reuters/nc


From John: Selperniku is a fruit, salt and sandalwood gourmand fragrance with a milky accord. It rests between the lactic and acidic notes of morning, early light, kitchens, and sunshine.
From AP: Apricots dipped in milk over savory tobacco and buttered woods. Words fail this unique beauty.
Selperniku Notes: Apricot, immortelle, butter, cardamom, petitgrain, chamomile, milk, cypress, juniper, tobacco, and sandalwood.


text:
Zika Virus Has Come to America ... Sort Of
Zika virus, suspected of causing severe birth defects in Brazil, has been diagnosed in a traveler in Houston. Some experts are worried.
An Asian Tiger mosquito feeds from the blood from a person in an undated photo.New Orleans Mosquito and Termite Control Board via Getty Images file
Jan. 12, 2016, 4:43 PM UTC / Updated Jan. 12, 2016, 4:43 PM UTC
By Maggie Fox
Zika virus, suspected of causing severe birth defects in Brazil, has been diagnosed in a traveler in Houston.
Officials in Harris County confirmed the case Monday. It's not the first time a tourist has carried Zika to the U.S., the Centers for Disease Control and Prevention says. And Zika is not poised to spread across the country just yet, but some experts are worried.
Scientists are working to find out whether the virus really is causing the birth defect, and how it might be doing it.
"I am really worried about Zika," says Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine and director of the Texas Children's Hospital Center for Vaccine Development.
Although a tropical virus like Zika isn't likely to spread widely across the more temperate parts of the U.S., it can spread anywhere that its distant relative, dengue virus, can spread. It's carried by the Aedes aegyptus mosquito, which only lives in tropical regions, but the Asian tiger mosquito, Aedes albopictus, which shows up much farther north in the summer, can also carry it.
Hotez says Houston and similar cities such as New Orleans have good conditions for the spread of Zika, a once-obscure infection that even many infectious disease specialists had never heard of.
"We have both species of mosquito that can transmit the virus. There's the right level of poverty and the tropical climate."
They include wet lowlands where mosquitoes can breed, warm temperatures, and poverty.
"I am quite worried about Zika taking off on the Gulf coast," Hotez told NBC News.
Zika has taken off with a vengeance in Brazil, and spread across Latin America as far north as Mexico. Health officials are not doing a precise count — the virus is not easy to test for and it causes very mild symptoms in most people. But hundreds of thousands of people have been infected.
The more people get infected, the more likely the virus is to spread. Zika is only known to infect people, so mosquitoes have to bite someone who is infected before they can spread it to someone else with their bites.
The occasional tourist bringing Zika back to the U.S. is unlikely to cause an outbreak. What officials need to look out for is evidence someone caught the virus locally. Dengue caused very small outbreaks in Texas in recent years, and Hawaii is just recovering from a larger dengue outbreak that infected about 200 people and that almost certainly was started by an infected tourist.
Hotez says cities such as Houston cannot afford to wait.
"The problem with it is we have to act now," he said. "This is such an unusual virus. It tends to produce low-level symptoms. You won't know you had a Zika outbreak until nine months later, when babies start being born with microcephaly."
At first health officials were skeptical that Zika was causing the birth defect, called microcephaly — an often deadly condition in which babies are born with smaller than normal brains and heads. But the number of cases has now reached 4,000, compared to an average of 150 or so a year in previous years.
But experts reported last week they'd found genetic material from the virus in amniotic fluid of mothers with two babies with microcephaly. Dr. Mauricio Lacerda Nogueira, a virologist at Brazils Sao Jose de Rio Preto medical school, says he's working to find more such evidence that it's Zika and not something else causing the surge in cases.
"Pregnant women in general, and particularly those who develop symptoms of Zika virus infection, should be closely monitored by health providers."
There's no vaccine and no treatment for Zika virus. It's the second exotic virus to spread across Latin America is such a short time. Chikungunya, also carried by mosquitoes, is now found across the region and is frequently carried to the U.S. by travelers.
In the meantime, the Pan American Health Organization is warning everyone traveling in warmer areas of the Americans to take care to avoid mosquito bites. Pregnant women need to take special care, PAHO says.
"Research is currently under way on possible mother-to-child transmission of the virus and its effects on babies. Pregnant women in general, and particularly those who develop symptoms of Zika virus infection, should be closely monitored by health providers," PAHO, part of the World Health Organization, says in a update released this week.
PAHO says only one in four people infected with Zika develops symptoms. They include a low level fever, rash, joint pain and conjunctivitis.
Maggie Fox
Maggie Fox is a senior writer for NBC News and TODAY, covering health policy, science, medical treatments and disease.


April snapshots, as captured with my iPhone. Not sure how in the world it's already May, but hey! May is cool.
8). Meal-planning, 9). My photos in a printed advertisement (!).
Follow me on instagram @exquisitebanana.
love the view from your couch!!
so beautiful, kayla! love all those flowers!


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Maryland's AG: "Don't Worry, No One's Votes Will Count!"
Posted by RC2 at 5:21 PM | Labels: Court's In Session, marriage, Maryland My Maryland
I spent eight hours at my parish over the weekend helping gather signatures to put marriage on the ballot in Maryland this fall (I am a trained "petition circulator" and trainer thereof). The process is interesting on a number of levels and once I got over my fear and distaste for being the official face of homophobic bigotry in my parish and neighborhood, kind of fun in that you get to meet and talk to a lot of different kinds of people.
A couple of quick observations.
First. I always say (and am not alone in saying) that support for traditional marriage is stronger than polls reflect because of the "spiral of silence" effect. That's sociology talk for people who think their position is unpopular keeping mum and people who think they're winning talking more and more so that neither side has an accurate sense of where people actually are. My parish is pretty much "Maryland" writ small: middle and working class, mixed races, warm family and community ties, deep residual Catholicism, equally deep Democratic Party and union ties. There's a recent influx of young families who are better catechized and more theologically Conservative and a sizable Nigerian immigrant community, but still the bulk of the community is Boomer and Boomer-educated Catholics. I expected more hostility to the petition drive than there was -- and was pleasantly surprised by who and how many folks signed.
The GOP sucks. While witnessing signatures after the Nigerian community Mass in our parish, I had a number of conversations with naturalized citizens who are highly committed to the defense of life and marriage and quite savvy about the likelihood activist judges will inhibit the referendum process. When I made an announcement at each Mass about how the process would work, most people listened politely or looked down so as not to reveal their thoughts. The Nigerians applauded me and asked God to bless their sister -- I guess they're not used to white people being for traditional marriage. Yet they are all registered Democrats (part of the signing process involves looking people up on voter rolls -- that's how I know). No excuse for that except incompetence; there is nothing about these people's culture and attitudes that fits with the Democratic Party.
Speaking of bought judges, I beg you to watch and publicize the final three minutes of our State Attorney General's comments to Equality Maryland last year. Starting at about minute 5, he gives his prediction of how the referendum process will go. Notice that he expects the referendum to get on the ballot and he expects traditional marriage to win "because the machines don't work." (I don't know if I am more offended by his assumption that the only way marriage would triumph is because of the machines not working or by how cavalier he is about the machines not working -- it is not his #1 priority to ensure a clean election?) He assures his audience that they need not worry about the will of the people, because Gov. O'Malley has appointed judges who will overturn the referendum.
And finally, you might think about sending some $$ in the direction of Maryland Marriage Alliance to fend off this kind of stuff. And if you're a Maryland voter whose church or civic group isn't sponsoring a signature drive for the referendum follow that MMA link to have the petition sent directly to you home. Act by May 19th.


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Select Site Profile to customize your organization-wide settings.
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Family documentary sessions have become one of my favorite things to photograph. It was an unseasonably cool day when I arrived at the M's house for their family documentary session. After meeting their twin boys and 6 month old baby girl, I decided with M's parents on a couple of good spots for some informal portraits. I always get a few camera aware images at the beginning of a lifestyle family session. It's a great warm up and serves as sort of a mini-session.
After Baby C went for a nap, the boys got to make use of their Easter present. New, shiny, yellow rain boots!
After splashing around in in rain puddles, everyone moved on to the back yard to spend some time playing.
After playing hard, it was to time to replenish with snacks.
Just as soon as snack time was over, Baby C awoke from her nap and the family went upstairs to greet her.
A teepee in the boys' room served as a perfect reading nook.
This was such an exciting shoot for me. I have wanted to photograph an adoption for a long time, so I was pleased as punch when the S family gave me the opportunity to be their adoption photographer. I arrived at their home in the morning to take a few photos of the family together, then I hopped in the van with them to ride to the courthouse.
When the S family arrived at the courthouse, they were greeted with excited family and friends.
When we entered the courtroom, another family had their proceeding before us. It was so nice to see two families officially adding a member that day. The mood in the room was certainly a happy one! I was able to stand behind the judge for the proceeding, which provided a great angle to photograph from. It all happened very quickly!
After J's adoption, Mom and Dad "renewed" Z's adoption. Z was about J's age when she was adopted, and she wanted to do it again!
Just like that, it was time to head back home for a celebration.
Last weekend I enjoyed photographing the S Family's newest addition in their home. Their living room was flooded with natural light, so I didn't even have to bring out my studio lights. I must say that studio lights can yield some great results, but natural light is my favorite!
Yesterday I had great fun photographing baby B's Valentine Day portraits in her home. Baby B is such a happy baby, and her mom included some great accessories that really made the images pop. Here are a few of my favorites from the session.
Today I had the privilege of photographing brand - new baby B. She was content to sleep the entire session, which was fine by me! She is truly a special Christmas gift.
I am loving taking portraits at Russ Pittman Park in Bellaire. I met the A family there for portraits recently, and I discovered even more hidden gems within this small neighborhood oasis. The pocket prairie is a small cordoned area planted with native grasses that the kids loved. They had a blast running through the trails and playing hide and seek in the tall grass.
The park is a bit of a drive from my home base, but I think the resulting portraits are worth it!
This morning I had the pleasure of meeting the G family and visiting Pitman Park for the first time. This park is truly a hidden oasis in a residential area of Bellaire. I almost missed the entrance, but once I made my way to the trail through the crushed granite parking lot, I was greeted with a serene nature trail perfect for a family photo session or a relaxing walk. Between the backdrop of the park and the adorable G family, I captured some great photos! I still have several images to go through, but these caught my eye right off the bat!
Family Photography - Baby H is One!
I enjoyed a 1st birthday session with baby H and his family today. I can't believe it has been a year since I took his newborn portraits! He consumed his birthday cupcake with intense focus, and at the end of the session, he enjoyed a bubble bath in the yard. Both were great photo ops!
C has been my dear friend since we met in 7th grade english class. She has been with me through so many of life's milestones, so I was honored to take portraits commemorating her most important milestone yet. Baby S is the most precious gift and I look forward to watching her grow.
Congratulations, C! I am so thrilled for you!
On Monday I enjoyed a session with some Oak Forest neighbors who welcomed a beautiful little boy into their family recently. It seems like just couple of weeks ago I was at their home photographing family and maternity portraits! It's just so much fun to watch people's families grow. Newborn sessions typically consist of photographing sleeping babies a lot, but not this one! Hosea was alert and observing everything he could in his new world.
I had the honor of photographing the sweetest baby girl yesterday! Baby Charlotte is Sarah and Chris's brand new little girl. I photographed Sarah and Chris's wedding a while back and I also went to high school with them a good while back before that. It's so much fun watching the family grow of people you knew back in the day.
I'm pretty new to newborn photography; I've only photographed a few sessions for former wedding photography clients and close friends. Newborn photography is definitely a whole different kind of challenge compared to wedding photography! I was feeling a bit rusty in this department, but Sarah worked with Charlotte to keep her fed, happy and asleep. After Charlotte was fast asleep, the shoot was a breeze.
I'm used to most of my wedding day shoots taking on a fast pace, but photographing baby Charlotte made me remember that working with infants is all about patience. It was definitely worth taking the extra time as we got our best shots at the end of the session while Charlotte was sleeping peacefully nestled in a blanket in a bucket. I'm eager to photograph another newborn session soon. Thanks Sarah and Chris - and congratulations!


text:
Global warming affecting fish
The banded morwong is being used as a barometer to gauge increases in ocean temperatures.
by Rodney Stevens
AUSTRALIAN scientists have reported the first known detrimental impact of southern hemisphere ocean warming on a fish species.
The findings of a study published in Nature Climate Change indicate negative effects on the growth of a long-lived south-east Australian and New Zealand inshore species, banded morwong. (Cheilodactylus spectabilis).
The bony structures fish use for orientation and detection of movement – called otoliths – have annual growth rings which were measured for changes.
Similar to growth rings in trees, they can be counted to indicate a fish's age and annual growth rate, estimated by measuring distances between each new ring.
Co-author of the paper, University of Tasmania (UTas) researcher Jeremy Lyle said banded morwong were used in the study because they can live for almost 100 years and, as adults, they stay in essentially the same area even if the water temperature shifts.
"Growth rates of young adult banded morwong in south eastern Australia have increased significantly since 1910 at four sample sites," Dr Lyle said.
"The team compared these changes to temperature trends across the species' distribution.
Dr Lyle said the study showed that growth performance in banded morwong began to suffer above average annual water temperatures of about 17 degrees.
"Generally, cold-blooded animals respond to warming conditions by increasing growth rates as temperatures rise," marine ecologist Dr Ron Thresher said.
"But theory and laboratory studies show that this has a limit.
"As temperatures get too high, we begin to see increased signs of stress, possibly leading to death.
"We are looking at whether climate change is beginning to push fish past their physiological limits.
"By examining growth across a range that species inhabit, we found evidence of both slowing growth and increased physiological stress as higher temperatures impose a higher metabolic cost on fish at the warm edge of the range."
Scientific monitoring since 1944 by CSIRO at Maria Island, off Tasmania, showed that surface water temperatures in the Tasman Sea have risen by nearly two degrees in the past 60 years.
This rapid warming, in southern hemisphere oceans, is due to globally increasing sea-surface temperatures and local effects caused by southward extension of the East Australian Current.
Dr Thresher said climate change can affect species directly by influencing how their bodies function, their growth and behaviour and indirectly through environmental effects on ecosystems.
australia fish global warming ocean


text:
The European market for bromeliads pot plants and bromeliad cuttings
In Europe, bromeliads have been cultivated and traded already for a long time. The largest bromeliad nurseries in the world producing cuttings and finished pot plants are located in The Netherlands. Currently, about 30 Dutch companies produce bromeliads. Guzmania is by far the biggest bromeliad traded at the Dutch auctions. Other important bromeliads are Vriesea, Tillandsia and Aechmea.
At young plant level, the bromeliad market is extremely competitive and is dominated by small number of relatively big breeding companies (Corn. Bak, Deroose Plants, Exoticplant) who compete for market share with a steady stream of new patented varieties. These breeders (or so-called improvers or hybridisers) are working constantly to produce ever more spectacular and hardy varieties for the market. The search for finding new varieties is fuelled by one thing: new stock.
European breeders usually breed, select and propagate their own young plant material. These young plants are sold to domestic growers as well as growers abroad. The companies have switched more and more to in-vitro propagation over the last ten to twenty years.
The competition for finding and being the first to use new superior clones and new species of bromeliads, especially in the genera Guzmania, Vriesea, and Aechmea therefore is fierce. Many superior hybrids have been produced in Europe and are now grown under licensing agreements all over the world. A single patented variety could be worth millions to the patent holder.
In the case of bromeliad young plant material, The Netherlands and Belgium are the biggest producers and exporters. Exports of bromeliad cutting go mainly to Italy, Germany and Denmark, but also outside Europe to USA and the Far East (China, Japan, South Korea).
However, bromeliad cuttings can often be grown faster and cheaper in nurseries abroad than in Europe. Many such facilities exist in Guatemala, Costa Rica, Colombia and, to a lesser extent, in other Latin American countries.
Most commercial laboratories for in-vitro propagation of plants are located in The Netherlands, France, Italy, Germany and Belgium. More and more production facilities in developing countries are used besides those in Europe. Labour costs in developing countries are low and the techniques are available. Usually, a company in a developing country works under licence of the European company.
A trend that can be recognised is the demand for laboratories in developing countries which have experience with specific products and developed 'protocols' for these products.
Source: ProVerde


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Birds continue to die en masse: the cause of the death of animals is unknown
Image for illustration purposes only
Songbirds have begun to die in the Central Atlantic United States. Many individuals were found to have strange tumors, discharge from the eyes.
The other part suffered from swelling of the head and could not lift it. Experts noted the presence of neurological symptoms – tremors, erratic flights, balance problems, etc., reports The Philadelphia Inquirer.
Since the beginning of May, several thousand dead and sick birds have been found in Indiana. The disease has been observed in various bird species.
Experts began to conduct toxicological tests. They did not show the exact cause of the damage to the birds, but they helped to exclude the presence of the bird flu virus, salmonella and some other diseases.
Lisa Murphy said that even the autopsies did not come close to solving the mystery. The symptoms observed in birds are characteristic of many pathologies, but none of them has been confirmed.
To date, experts continue to deal with this issue and are trying to establish the causes of death of songbirds.
In addition, they urge citizens to keep their pets at home, not to feed the birds and thereby not provoke the spread of the disease. Experts hope to soon establish not only the causes, but also understand how to deal with the discovered causative agent of unknown pathology.
# Anomalies# Bizarre# Horror
People around the world began to have "pandemic dreams"
The world's largest telescope will launch a project to search for aliens
Insider info: In September, a giant asteroid may fall to Earth
The wreckage of the "alien ship" was discovered by a researcher on Mars
Austrian experts warn of 'Great Global Blackout'
Our universe is in a black hole: a scientist made a loud statement


We've been to too many workshops and read too many articles that purport to give artists advice on how to manage their careers, but repeat the same tired recommendations. You too? We (Peter Gynd, Emily Lenz and Melinda Wang) started talking about what we discuss with our art colleagues behind closed doors and how we'd like to help more artists outside of our existing art circles.
With that in mind, we are inviting 10 artists to join us on Tuesday September 18 for a roundtable discussion about actionable real world advice to get work seen and sold. Chatham House Rule applies.
We ask that you fill out this short questionnaire by September 7 so that we can gauge interest and have a mix of perspectives for a robust discussion.


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92.4% – JETSTAR CABIN CREW UNANIMOUSLY REJECT AGREEMENT
Jetstar has informed staff that an overwhelming 92.4% of employees have unanimously REJECTED its Jetstar Cabin Crew Agreement.
Congratulations to TWU Jetstar members who have sent such a clear and unambiguous message to management. The current Jetstar cabin crew agreement process has been problematic and TWU members obviously were not happy with the rushed, substandard deal made behind closed doors between the FAAA and Jetstar management.
TWU (VIC/TAS BRANCH) Secretary John Berger said it was heartening to see the level of solidarity among Jetstar cabin crew and the resounding vote to reject the agreement underlined the fact that Australian workers will not – and should never – accept cut-rate deals that fall far short of expectations.
"Cabin crew work is a multi-faceted occupation requiring multiple skills to be deployed concurrently at high performance levels. Management must adequately compensate these crew members for the strong, often under-appreciated, work that they perform in ensuring safe skies and that Australian airline passengers keep moving," John said.
We are stronger together and NOW is the time to join the TWU and tell your mates to do the same, the more members we have the better the agreement. JOIN NOW.
The vote on the Jetstar Cabin Crew Agreement coincided with reports that Qantas boss Alan Joyce's pay packet nearly doubled in the past year to $25 million
The wage means Joyce has flown towards the top of the Australian executive pay tree. The company's chairman, Leigh Clifford, defended the pay award which he said was based on the airline's "remarkable" turnaround from a $2.8bn loss in 2014 to record profits.
"There is no question that these pay outcomes are high," Clifford said in a statement.
"That's because they reflect the company's exceptional performance, including our top ranking for total shareholder return among global airline peers and every company on the ASX100."
These statements of financial wealth are great for Qantas but the Australian travelling public are entitled to ask how exactly these profits are made. If the company is performing so well and the executive and shareholders are being richly remunerated: why have basically all of its cabin crew employees rejected an unfair agreement.
There is obviously money there for workers – join the TWU today and join a union willing to roll up the sleeves to secure better wages and conditions and a more secure future for its members.
NEW TWU-COMMISSIONED REPORT SHOWS $100 BILLION LOSS TO RETIREMENT SAVINGS OVER SLASHED WAGES
MEDIA EXPOSE OF THE SORRY STATE OF THE TRUCKING INDUSTRY – ON THE ROAD TO THE NEXT TRUCKING TRAGEDY


text:
Centre for Electronic Packaging and Assemblies, Failure Analysis and Reliability Engineering
Department of Biology and Chemistry
Liu Bie Ju Centre for Mathematical Sciences
New accreditation for EPA Centre
The Centre for Electronic Packaging and Assemblies, Failure Analysis and Reliability Engineering (EPA Centre) was accredited in December 2003 by the Hong Kong Accreditation Service (HKAS) for its Ionic Analysis of Circuit Board, Ion Chromatography Method.
Marine environmental research--an AoE first for CityU
A team of researchers, led by CityU's Rudolf Wu, Chair Professor in the Department of Biology and Chemistry (BCH), has been awarded HK$45 million under the University Grants Committee's (UGC) third round Areas of Excellence (AoE) scheme.
Millions for maths
A passion for mathematics not only translates into breakthroughs in the language of science but, in some cases, turns deep admiration into philanthropy as well.
Commitments from all sides to rein in deficits
The education sector, Financial Secretary The Hon Henry Tang said, is not expected to meet the 11% across-the-board cut he proposed for all the other major 2005-08 outlays, to help the government tackle its growing budget deficits. He also promised that he will promptly discuss with Professor Arthur Li, Secretary for Manpower and Education, government allocations to the local universities in the 2005-08 triennium.


GoldenEar Technology has appointed Christopher Volk as its new Eastern region director of Sales. Volk comes to GoldenEar with tremendous expertise and experience in the AV industry.
Christopher Volk He began his career at Legacy Audio in Inside sales in 1996, moving up to national sales Manager in 2002. In 2005 Volk moved to Definitive Technology as a sales manager, and then moved up to the position of senior sales manager in 2012, and subsequently, key account manager with Sound United, with the additional responsibility of managing Polk and Boom accounts, from 2014 to the present.
With so many key positions at exceptional companies, Volk has developed tremendous expertise in working with dealers, sales training, customer service, dealer prospecting, trade show coordination, merchandising, as well as international trade show work and training. The GoldenEar team is thrilled to have Volk on board.


text:
Tag: Movie Adaption
Bullet Train by Kōtarō Isaka
On April 5, 2021 August 13, 2022 By The Unseen LibraryIn English Translation, Thriller11 Comments
Publisher: Harvill Secker (Trade Paperback – 16 March 2021)
English translation by Sam Malissa
Thriller is a genre that I have only really started reading in the last couple of years and it is swiftly growing to become one of the top types of novels I tend to check out. While most of the thrillers I read are somewhat mainstream and from authors I have read before, I occasionally branch out and check out something from an unfamiliar author if it has an unusual-sounding plot synopsis which really grabs my attention. One of the most recent of these was Bullet Train by bestselling Japanese author Kōtarō Isaka, which I was lucky enough to receive a copy of a little while ago. Bullet Train, which is the first English translation of Isaka's 2010 standalone novel, Maria Bītoru (Maria Beetle), is a unique and clever thriller which follows five very unusual killers who find themselves aboard the same ill-fated train ride.
On a seemingly normal day, a bullet train is setting out from Tokyo, making its regular trip to Morioka, with several stops planned along the way. As the train leaves, everything appears quiet, except for the fact that five dangerous killers are on-board, each of them with a very different mission in mind. The youngest killer, Satoshi, looks like an innocent schoolboy, but in reality his is a psychotic master manipulator, easily able to get people to do what he wants. His latest victim was Kimura's young son, who is now in a coma after being thrown off a building. Kimura, a former hitter turned alcoholic, has tracked Satoshi to the train and intends to kill the youth in revenge. However, when Kimura underestimates his opponent, he soon finds himself in the middle of a dangerous game of survival, as he and Satoshi encounter some of the other passengers on board.
Nanao, the self-proclaimed 'unluckiest assassin in the world', has a relatively simple retrieval job that requires him to spend only a few minutes on the train. However, when his unnatural bad luck conspires to keep him trapped aboard, he is forced into a desperate battle for survival. At the same time, the lethal and unconventional assassin partners, Tangerine and Lemon, are also travelling to Morioka, until an untimely death puts them in the crosshairs of a notorious crime lord. When a suitcase full of money also disappears, all five killers are forced to show their hands, beginning a desperate battle aboard the moving train. However, as things get serious, the killers begin to wonder why all of them are aboard the same train and who is really pulling their strings. As the bullet train pulls closer to its destination, betrayals, manipulations and secrets are revealed, and not everyone will survive to reach the last station.
Now this was an extremely awesome and deeply impressive novel that I am so very glad I decided to check out. This translated novel from Isaka, an author who has written a massive collection of mystery and thriller novels over the last 20 years, including several that have been adapted into films, was a clever, fast-paced thrill ride that follows several awesome and captivating assassin characters. This resulted in an epic and compelling read which proved to be extremely addictive and is one of the most entertaining books that I have read this year.
I absolutely loved Bullet Train's slick and clever story that quickly dives between the book's various characters. Split between the five central killer protagonists, as well as a few intriguing supporting characters, Bullet Train has a particularly intricate narrative that is heavy on the twists, rapid turns and unique moments. Isaka does an exceptional job setting the scene and introducing each of the great characters, and the reader is soon engrossed in seeing how the story and individual character arcs play out. It does not take long for all five main characters to find themselves involved in some surprising and dangerous situations, which they must work to extricate themselves from. As each character attempts to deal with their own problems, be they a dead client, stolen money, blackmail or being suddenly forced to deal with a dead body, their various storylines soon begin to intersect. The way in which the individual storylines come together works extremely well and it proves to be extremely entertaining to see to the vibrant and distinctive personalities of each of the protagonists clash against each other when they meet. Their intriguing interactions include some intense action sequences, clever manipulations and even some amusing confrontations that include anything from philosophical debates to discussions about a certain children's show. At the same time, the characters are also forced to contend with several additional complicating factors, including other killers aboard the train, seemingly oblivious onlookers, secrets from the past and a dangerous long-reaching plot. All of this leads to an epic and clever conclusion that sees several protagonists die and a number of clever twists come to fruition. I honestly did not see some of these cool twists coming and I ended up on the edge of my seat waiting to see what would happen next and which of the characters were going to survive the whole thing. I ended up being really impressed with this cool book and I really enjoyed this thrilling and compelling read.
While Bullet Train's narrative itself is extremely cool, the true highlight of this epic book is the five killer main characters of the story. All of these main characters are a lot of fun and the author has imbued them with some excellent and memorable traits and personalities. All five characters add so much to the story in their own right, but their real strength is the way in which they interact with each other. The way in which these unique protagonists play off each other is just perfect and it was great to see them get the measure of each other and fully understand just whom they are dealing with. You really get invested in each of these five characters fates and it is rather interesting to see who survives until the end and who comes out on top.
The first two major characters featured within the book are the interesting combination of vengeful former hitman Yuichi Kimura and teenage manipulator Satoshi Oji. Kimura is a recovering alcoholic who is hunting Satoshi due to the teen's role in Kimura's son getting pushed off a roof and ending up in hospital. However, his attempts at revenge are quickly thwarted by Satoshi, whose nickname "the Prince" tells you pretty much all you need to know about the kid. Using threats towards his comatose son, the Prince manipulates Kimura into helping him investigate the strange events occurring on the train, and the two quickly find themselves in the middle of the dangerous situations, with Kimura attempting to find a way to save his son while the Prince attempts to work the situation to his own advantage. Both fantastic killers are well-written and compelling characters who add a significant amount to the tale. You really get invested in Kimura's struggle to save his son and overcome his own inner demons, while Satoshi serves as a particularly unlikeable villain, who you really want to suffer, even if he is a teenager. Isaka also throws in a few intriguing flashbacks which highlight how the rivalry between the two started, and which helps to dive into both insecurities and fears. Both end up having fantastic story arcs within this book, and I really enjoyed the complex web that the author wove around the two.
Another of the main characters is Nanao, a young professional killer with a conscience who has only recently entered into the game. Nanao is an absolute sweetheart whose most defining characteristic is his abysmal bad luck, which plagues him throughout the course of the book. It proves rather amusing to see all the dramatic and amusing setbacks that happen to Nanao during Bullet Train, and it quickly becomes apparent that he is actually cursed, a fact that he faces with particular sadness and a certain amount of fatalism. You cannot help but feel for Nanao as the book progresses, and there is something about his general unhappiness with the situation that draws the reader to him. Thankfully, he is also a particularly skilled operative, especially in dangerous situations, which gives him a fighting chance against his opponents, and the times when this resourcefulness appears are pretty awesome. I personally felt that Nanao's story arc was one of the best in all of Bullet Train and I really loved seeing the other side of the characters' unluckiness eventually come into play, even if the protagonists never realised just what happened to him.
The final two killers featured within Bullet Train are the memorable partnership of Tangerine and Lemon. Despite their similar appearance which makes many people believe that they are twins, Tangerine and Lemon are very different people, both with unique personalities that clash with one and other. While Tangerine is the well-organised professional with a love for classic literature, Lemon is the wild card, a seemingly flaky and eccentric killer with an unnatural appreciation for the children's show Thomas and Friends. This makes for a very entertaining odd-couple pairing, as the two characters, who at times appear not to even like or understand each other, need to sort through the chaotic situation about the train. While Tangerine is an enjoyable character who serves as a good straight man to some of the more outrageous personalities aboard, I definitely enjoyed Lemon way more. Lemon is a wildly entertaining and captivating character whose unique viewpoint on life, which is inspired by Thomas and Friends, is both childlike and clever at the same time. I really enjoyed seeing some of Lemon's reactions and solutions to the problems he encounters, especially as he mainly draws on lessons from the characters in Thomas in Friends, when it comes to judging people (you really do not want to be a mean old Diesel). This leads to some great scenes, especially as he can see through manipulations that have tricked some of the other characters. It was also great to see the full breadth of the friendship between Tangerine and Lemon become clear as the book continued, especially as it leads to one of the best scenes in the entire book. Each of these character arcs ended up being truly spectacular and I had an outstanding time seeing each of their unique tales unfold.
Bullet Train by Kōtarō Isaka was an epic and immensely captivating read that comes highly recommended. I deeply enjoyed the unique and exciting tale told within it, loaded as it was with all manner of cool twists and surprise reveals, and I cannot emphasise how awesome the main five characters were. This was a superb read and I will have to keep an eye out for English translations of any of Isaka's other books. I am also quite excited for the upcoming film adaption of this book, also titled Bullet Train. I assume that this English translation novel is the result of the major Hollywood adaption of Maria Bītoru that is currently in production, and which looks set to feature an impressive array of actors including Brad Pitt, Joey King, Aaron Taylor-Johnson, Zazie Beets, Lady Gaga and Sandra Bullock. While I am a little uncertain about why a film set on a bullet train in Japan is going to feature a primarily American cast, this looks set to be a fun movie, especially if it lives up to this impressive and clever novel.
Make sure to also check out my review for the connected Kotaro Isaka novel, Three Assassins, here.
Relentless by Mark Greaney
On March 15, 2021 August 14, 2022 By The Unseen LibraryIn Audiobook, Five-Star Books, Thriller24 Comments
Publisher: Sphere/Audible Audio (Audiobook – 16 February 2021)
Series: Gray Man – Book 10
One of the leading authors of the spy thriller genre, Mark Greaney, returns with the tenth epic book in his long-running Gray Man series, Relentless, an impressive and captivating read.
Mark Greaney is talented author who has been absolutely killing it over the last 10+ years ever since his 2009 debut. While he has written some other books, including seven contributions to Tom Clancy's iconic Jack Ryan universe (three cowritten with Clancy, and four written after Clancy's death) and the military thriller Red Metal (cowritten with Hunter Ripley Rawlings, and one of my favourite books and audiobooks of 2019), Greaney is probably best known for his awesome Gray Man series. Starting with The Gray Man in 2009, this series follows Court Gentry, a disavowed CIA operative turned assassin known as the Gray Man. I am a major fan of this series, having read the last few entries, Mission Critical and One Minute Out (the latter was one of my favourite books and audiobooks of 2020), and I have been looking forward to this book for a while (indeed it was one of my most anticipated releases for 2021).
Around the world, several top intelligence agents are disappearing, and CIA deputy director Matthew Hanley wants to know why. When a former American agent who was believed to be dead resurfaces in Venezuela under the protection of the local secret police, Hanley has no choice but to send in his most dangerous asset, Court Gentry, the Gray Man. As the Gray Man, Gentry is feared around the world as a lethal assassin and rogue operative, but his real role is as a deniable hitter for Hanley at the CIA. Journeying down to Venezuela, Gentry makes contact with the former agent, who spins a tale of conspiracy and espionage in the heart of Europe before being brutally murdered by a heavily armed team of assassins.
Barely managing to escape with his life and convinced of a larger conspiracy at foot, Gentry convinces Hanley to send him to Berlin to uncover the truth. At the same time, Gentry's fellow CIA agent and lover, Zoya Zakharova, is infiltrating a private German intelligence firm with connections to the dead man in Venezuela. As Zoya attempts to find out who is really running the organisation, she finds herself once again in the crosshairs of her former masters in Russian intelligence, who send their most lethal assassin to kill her.
As Gentry and Zoya fight for their life in Berlin, they start to understand the full breadth of the conspiracy they have found themselves amid. Someone is playing a dangerous game at a global level and they are willing manipulate the American and European governments to further their goals. Can Gentry and his allies get to the bottom of this conspiracy before it is too late or will a terrible attack lead America into an unwinnable war?
The hits keep on coming from Greaney, as Relentless was a fantastic and incredible novel that is one of the best books of 2021 so far. I loved the impressive and complex story contained within Relentless with all its twists and turns, and I swiftly became enthralled by the well-written and intense narrative. I had an outstanding time reading this book and it gets an easy five-star rating from me.
At the heart of this awesome novel is an intense and fast-paced narrative that readers will quickly become addicted to. Set shortly after the events of One Minute Out, this multi-perspective narrative sends protagonist Court Gentry to South America on a dangerous mission that has connections to the main conspiracy. After a not entirely unexpected destructive fire fight from a third party, Gentry heads to Europe where he seeks to back up his love interest, Zoya, who is undercover in Berlin following another connected lead. At the same time, the narrative expands out to showcase other groups involved in the conspiracy, including a manipulative spy master, two separate teams of killers who are hunting different protagonists, and an Iranian sleeper agent, just to name a few. All their various storylines and character arcs are extremely interesting and exciting, as the author has crafted together some compelling narratives for each of them. Greaney throws in a lot of amazing surprises and twists throughout the novel, and while I was able to guess how a few things were going to turn out, I could not predict the amazing scale and complexity of the overarching conspiracy that the characters find themselves involved with. There is a comprehensive and captivating focus on international espionage throughout Relentless which fits into the story perfectly, and I loved all the cool details that author included, including a recreation of a recent real-life espionage event of great significance. All these storylines come together extremely well, ending with a massive and memorable conclusion that was a lot of fun, and I ended up loving every second of this cool story. Greaney also sets up some intriguing storylines for future novels in the series and I am really looking forward to seeing what happens next.
In addition to Relentless's epic story, I really enjoyed Greaney's cool writing style, which complemented the narrative perfectly. The novel can be easily enjoyed by people unfamiliar with the series, and I really appreciated the amazing amount of detail and excitement loaded into the book. There a particular focus on trade craft with this latest novel, with some great explanations about the various spy techniques utilised by the various characters, and this pumped some real authenticity into the story. I also really enjoyed all the incredible action sequences featured within this latest novel. Greaney has always had a talent for writing explosive and powerful action scenes, and Relentless contains some impressive examples of this as the protagonists duke it out with a wide range of enemies across the world. Every action scene is well-planned out, realistic and very intense, ensuring the reader is constantly on the edge of their seat.
I also absolutely loved the author's excellent use of multiple perspectives throughout the novel, which was a real highlight for me. While there is an obvious focus on characters like Gentry and Zoya, nearly every other character, including many of the antagonists, have their side of the story shown. I found this worked extremely well to tell a complex narrative, as the reader gets to see what everyone, from the mastermind of the conspiracy to members of the various kill teams hunting the protagonists, is doing and thinking. Not only does this build up suspense, as you know in advance some of the dangers and threats coming towards the protagonists, but you also get to see the antagonists react to all of Gentry's actions and watch them adjust accordingly. This makes for a much richer and more impressive story, and it works particularly well in some of the combat sequences, as you get to see all the characters manoeuvring around the battlefield. There are also some extremely awesome chapters where various characters are following each other throughout Berlin. Watching several point-of-view characters engaging in surveillance and countersurveillance operations against each other, with some other interested parties thrown in for good measure, was very cool, and it ended up being one of the cleverest sequences in the novel. I really loved how this awesome writing style enhanced the story and I think it worked really well.
As usual, Greaney comes up with an excellent selection of characters for Relentless, all of whom get explored in substantial detail throughout the book. Most of Relentless's focus is naturally on the series' main protagonist, the titular Gray Man himself, Court Gentry. Greaney continues to paint an interesting figure with Gentry, as a former official CIA operative who was forced to become an assassin with a conscience, before secretly re-joining the CIA in the Poison Apple program as a deniable asset. Gentry has a great, action-packed story in Relentless, getting into all manner of dangerous situations, and I loved the cool ways he attempts to extricate himself from them, often by killing his opponents. I also really liked how Greaney gave Gentry a significant handicap in this latest adventure, as he is suffering from a serious infection from a stab wound gained in One Minute Out. This infection reduces his reaction speed and physical prowess throughout the book and forces him to seek continued medical care, all of which makes his mission even more dangerous and problematic, and which really raises the stakes for the entire book. It was also great to see more of Zoya and Zack Hightower, the other two Poison Apple agents, both of whom were not featured that much in the previous novel. Both these agents have some compelling and entertaining arcs in this book, and I always enjoy how well the former Russian knockout and the aging American special operator compliment Gentry as a team. Interestingly, you also get to see a lot more of CIA deputy director Matthew Hanley, the man secretly running Gentry, as he even gets into the field for a particularly dangerous assignment. Some big moments occur for Hanley in Relentless, and it will be interesting to find out what happens to him next. I also quite enjoyed the wild Russian assassin, Maksim Akulov, a drunk lunatic with a death wish, who is assigned to kill Zoya, but eventually starts targeting Gentry, seeing him as the ultimate challenge. All these amazing characters, and more, really added a lot to the story, and I look forward to seeing how the ones who survived are utilised in the future.
While I did receive a physical copy of Relentless, I ended up enjoying this book in its audiobook format instead. I have had a lot of fun with Greaney's audiobooks in the past and I generally find that the intense and epic action and espionage translates into this format extremely well. Relentless was no exception, and I found myself really enjoying listening to all the cool sequences unfold and at times I almost felt like I was there witnessing it. With a run time of 15 hours and 40 minutes, Relentless's audiobook is pretty long and might take listeners a while to get through. However, it is worth the time investment and you will find yourself quickly powering through it once you get caught up in the story (I personally listened to it for nearly five hours straight at one point). This latest Gray Man audiobook also sees the return of Jay Snyder as narrator. Snyder is an experienced and prolific audiobook narrator who has contributed his voice to a wide range of awesome audiobooks in the past, including all the previous entries in the series. Snyder has a fantastic gruff voice that fits the tone of Relentless perfectly, and which he uses to great effect moving the story along and describing all the deadly action and chaos. Snyder also produces some great voices for the various characters which I think encapsulate each person really well and proved to be very effective. I was a little wary about a Minnesota accent that he had to do for one of the characters, but it grew on me as the book progressed and I think it was a decent attempt in the end. All of this makes for an epic and enjoyable audiobook and this is definitely an amazing way to check Relentless out.
Relentless is another exceptional spy thriller from the always impressive Mark Greaney that comes very highly recommended. The 10th entry in the always outstanding Gray Man series, Relentless contains another captivating and deeply exciting narrative, which, combined with Greaney's impeccable writing and fun characters, makes for a truly excellent thriller. I had such an awesome time reading Relentless, and this book is one of the best releases of 2021 so far. I look forward to seeing how Greaney continues this series in the future, and I must really go back and check out some of the earlier Gray Man novels this year, especially as a movie adaption of The Gray Man is currently being made by the Russo brothers with Ryan Gosling and Chris Evans set to star (I mean, talk about a movie with some real potential).


text:
Q: Why did Stack Overflow not like my question about an html5 template/structure? I got two down votes and four votes to close in like 3 minutes, and I don't know why. I have deleted the post already, but I asked whether this code was acceptable and needed anything to be added to it.
<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>...</title>
    <meta name="description" content="...">
    <meta name="author" content="...">
    <link rel="stylesheet/less" type="text/css" href="..." />
    <script src="..."></script>
</head>
<body>
...
</body>
</html>

What I meant to ask, I guess, was if you were going to tell newbies how to structure the code of an html page, would you include anything more or less than what I have coded above.

A: OK, so you asked:

Is this code acceptable and is there anything that needs to be added to it?
If you were going to tell newbies how to structure the code of an html
page, would you include anything more or less than what I have coded
below?

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>...</title>
    <meta name="description" content="...">
    <meta name="author" content="...">
    <link rel="stylesheet/less" type="text/css" href="..." />
    <script src="..."></script>
</head>
<body>
...
</body>
</html>

It's just an empty HTML page. There's nothing to "improve" or "review" because it doesn't do anything. Your question makes no sense. This has nothing to do with if it's OK to ask "Is X better than Y?" or "What is the best way to accomplish X?".
It's like saying:

How could I improve this PHP project?

<?php
include 'lib/Application.php';
Application::run();

It's not a real question.

A: Probably because asking "is this acceptable?" is not a real question, or constructive for our site. Questions on Stack Overflow need to have a real, defined problem. We're not a feedback site. So unless you have a problem with something in your code not working (at all or in the manner you expected), your question probably isn't acceptable here.
Do you have any reason to believe that the code you provided is not acceptable? If you're just wondering if it's valid HTML, try the HTML Validator.

A: Asking "is this acceptable ?" or "what can be done to make it better?" is off topic for StackOverflow. SO is about problems with code, not working code.
Your question could have been on topic for Code Review which is about reviewing stuff that works. (As stated in the comments) You have to have a specific things to improve to post there, but depending on your question, it could apply there.
The question may have gotten downvoted not because it was a bad question or badly formatted, but because you did not post it at the right place.

redpajama_set_name: RedPajamaStackExchange


text:
\section{Introduction}
The recent discovery of the $T_{cc}$ state by the LHCb Collaboration \cite{exp1,exp2,exp3,LHCb:2021vvq} has added a new exotic hadron state
to an already long list of states discovered in the latest years that challenge the $q\bar q$ nature of the standard mesons or $qqq$ of the standard baryons.
The novelty with respect to many states containing hidden charm is that now there are two charm quarks open.
This finding follows the discovery of the $X_0(2866)$ and $X_1(2904)$
which have an open charm quark and a strange quark with manisfestly tetraquark structure \cite{x2866}.

On the theory side there have been quite a few works devoted to the study of tetraquarks with two heavy quarks \cite{1,2,3,4,5,9,10,11,12,13,14,15,150,16,17,18,19},
with quite a wide range of predictions going from about $250 \textrm{ MeV}$ below the energy reported for the $T_{cc}$
to $250 \textrm{ MeV}$ above in the case of two open charmed quarks.

The mass of the $T_{cc}$ state is remarkably close to the $D^{*+} D^0$ and $D^{*0} D^+$ thresholds, its value is given by \cite{exp1,exp2,exp3,LHCb:2021vvq}
\begin{equation}\label{eq:mexp}
m_{\rm exp} = 3875.09 \textrm{ MeV} + \delta m_{\rm exp},
\end{equation}
where $3875.09 \textrm{ MeV}$ is the threshold of the $D^{*+} D^0$ state and
\begin{equation}\label{eq:mexp2}
\delta m_{\rm exp}= -273\pm 61 \pm 5^{+11}_{-14}~{\rm keV}.
\end{equation}
The width reported for the $T_{cc}$ state is \cite{exp1,exp2,exp3,LHCb:2021vvq}
\begin{equation}\label{eq:mexp3}
\Gamma = 410 \pm 165 \pm 43^{+18}_{-38}~{\rm keV}.
\end{equation}
As we can see, the mass is very close to the $D^{*+} D^0$ threshold and the width is very small.

The results of  Ref.~\cite{LHCb:2021vvq} were accompanied by a theoretical analysis of the data by the LHCb Collaboration \cite{LHCb:2021auc}, using a unitary Breit-Wigner amplitude and taking into account the experimental resolution. The results obtained differ somewhat from those of Eqs.~\eqref{eq:mexp2} and \eqref{eq:mexp3} and the new values reported from the pole position of the state are
\begin{equation}\label{eq:mpole}
\delta m_{\rm exp}= -360\pm 40^{+4}_{-0}~{\rm keV} ,
\end{equation}
\begin{equation}\label{eq:wpole}
\Gamma = 48 \pm 2^{+0}_{-14}~{\rm keV}.
\end{equation}

The closeness to the $D^* D$ threshold makes one think immediately about the possibility
that this state could be a molecular state of $D^* D$,
and in fact such structure was anticipated in Refs.~\cite{shilin,18,he}.
Independent of the structure of the $T_{cc}$ state,
the proximity of the $D^* D$ threshold makes unavoidable the explicit consideration of the $D^* D$ channels in its study,
as shown in the detailed study of threshold structures in Ref.~\cite{fengkun}.
The possible $D^* D$ bound state would have an analogous structure to the $D^*D^*$ molecular state already studied in Ref.~\cite{branz},
where such open charm molecular structures were reported for the first time.
It is interesting to mention that also in Ref.~\cite{branz} predictions were made for another exotic state of $D^* \bar K^*$ nature
that matches correctly the $X_0(2866)$ state reported in Ref.~\cite{x2866} (see update in Ref.~\cite{raquelnew}).

 The reaction of the theory community to the experimental finding has been fast.
 In Ref.~\cite{perfect} a reminder was given that in Ref.~\cite{shilin} a prediction for a molecular $D^* D$ state had been done matching perfectly the mass found in the experiment.
 In Ref.~\cite{shilingam} the width of the $T_{cc}$ state is studied with the $D^{*+} D^0$ and $D^{*0} D^+$ coupled channels and found small compared with the experimental one. \footnote{The couplings of $T_{cc}$ to the $D^{*+} D^0$ and $D^{*0} D^+$ channels obtained in Ref.~\cite{shilingam} (version v1 of the ArXiv) are under revision \cite{private}.}
 The same conclusion is obtained in Ref.~\cite{xiegeng} where a single channel $D^* D$ molecule is assumed.
 The QCD sum rules method also brings its contribution to the subject
 showing that such a state appears at a central value of $3868 \textrm{ MeV}$ for the mass,
 with the typical large uncertainties of the sum rules method,
 about $124 \textrm{ MeV}$ in this case \cite{azizi}.

In the present work we report on how a molecular state of $D^{*+} D^0, D^{*0} D^+$ nature naturally emerges from the interaction of these two coupled channels,
and we make a study of the invariant mass distribution of $D^0 D^0 \pi^+$ in the production of this state, which is the mode where it has been observed in Refs.~\cite{exp1,exp2,exp3,LHCb:2021vvq}. We use as a source of interaction the exchange of vector mesons provided by the local hidden gauge approach \cite{hidden1,hidden2,hidden4,hideko}.
In the case of $VP$ (vector-pseudoscalar) interaction one can also have the exchange of pseudoscalar mesons, but comparatively to the vector exchange their contribution is very small \cite{diastoledo,aceti,nakamura} (see detailed calculations in Appendix~A of Ref~\cite{diastoledo}).
In any case the coupled channels unitary approach requires the use of the $G$ functions, the loop functions of the intermediate $D^* D$ states, which have to be regularized, and missing pieces of the interaction can be accommodated by means of an appropriate choice of the cut off or the subtraction constant, in the cut off or dimensional regularization methods, which are fine tuned to the precise value of the mass of the state.

\section{Formalism and Results}

We use a unitary method with the coupled channels $D^{*+} D^0$ and $D^{*0} D^+$, paying attention to the exact masses and widths.
The interaction is obtained from the extended local hidden gauge Lagrangians \cite{hidden1,hidden2,hidden4,hideko}
and they correspond to the exchange of vector mesons in the diagrams of Fig.~\ref{fig:FeynDiag}.

\begin{figure*}
\centering
 \includegraphics[width=0.85\textwidth]{Fig1.pdf}
 \caption{\small{Diagrams considered for the interaction $VP$. }}
\label{fig:FeynDiag}
 \end{figure*}

The Lagrangians used are
\begin{eqnarray}
  {\cal{L}}_{VPP} &=& -ig \,\langle [P, \partial_\mu P] V^\mu\rangle, \nonumber \\
  {\cal{L}}_{VVV} &=& ig \,\langle (V^\nu \partial_\mu V_\nu-\partial_\mu V^\nu V_\nu) V^\mu\rangle, \\
  g &=& \frac{M_V}{2\,f}, ~~(M_V=800 \textrm{ MeV},~f=93 \textrm{ MeV}).\nonumber
\end{eqnarray}
with $\langle~\rangle$ meaning the trace of the matrices in the SU(4) space,
where $P$ and $V$ stand for the pseudoscalars and vectors respectively,
and they correspond to the $q_i \bar q_j$ matrices written in terms of the corresponding mesons,
which can be found in Ref.~\cite{Ikeno}.
Since we are close to the $D^* D$ threshold we neglect the $\epsilon^0$ components of the vectors
and work with the vector polarizations $\vec\epsilon, \vec\epsilon\,'$.
Calling $D^{*+} D^0, D^{*0} D^+$ the $1, 2$ channels, the interaction that we obtain is
\begin{eqnarray}\label{eq:Vij}
  V_{ij} &=& C_{ij}\, g^2\, (p_1+p_3)\cdot (p_2+p_4) \, \vec\epsilon \cdot \vec\epsilon\,' \nonumber\\
   &\rightarrow &  C_{ij}\, g^2\, \frac{1}{2} [3s-(M^2+m^2+M'^2+m'^2)  \nonumber\\
   & & -\frac{1}{s}(M^2-m^2)(M'^2-m'^2)]\, \vec\epsilon \cdot \vec\epsilon\,',
\end{eqnarray}
where $M, m$ are the initial vector, pseudoscalar masses and $M', m'$ the corresponding final ones.
The second expression in Eq.~\eqref{eq:Vij} follows after projection in $s$-wave,
which is what we study.
The matrix $C_{ij}$ is given by
\begin{equation}\label{eq:Cij}
C_{ij} = \left(
           \begin{array}{cc}
             \frac{1}{M_{J/\psi}^2} & \frac{1}{m_\rho^2}   \\[0.1cm]
              \frac{1}{m_\rho^2}  &  \frac{1}{M_{J/\psi}^2}\\
           \end{array}
         \right).
\end{equation}

In diagrams Fig.~\ref{fig:FeynDiag}(a) and (b) one can exchange $\rho^0$ and $\omega$, but one can see that the product of the couplings for $\rho$ or $\omega$ exchange is the same, yet with opposite sign, and assuming equal masses for the $\rho$ and $\omega$, there is an exact cancellation.

One finds that individually the $D^{*+} D^0, D^{*0} D^+$ states have a weak and repulsive interaction due to $J/\psi$ exchange
and hence they do not bind by themselves,
but the coupled channels have the virtue of making a bound state possible.
Indeed, if we take the isospin combinations (our isospin doublets are $(D^+,\, -D^0)$ and $(D^{*+},\, -D^{*0})$)
\begin{equation}\label{eq:Iso}
\begin{split}
  |D^* D, I=0\rangle &= -\frac{1}{\sqrt{2}} (D^{*+} D^0 - D^{*0} D^+), \\[0.15cm]
  |D^* D, I=1, I_3=0\rangle &= -\frac{1}{\sqrt{2}} (D^{*+} D^0 + D^{*0} D^+),
\end{split}
\end{equation}
we find (the indices indicating the isospin)
\begin{equation}\label{eq:C00}
C_{00} = \frac{1}{M_{J/\psi}^2}-\frac{1}{m_\rho^2}; ~~~C_{11} = \frac{1}{M_{J/\psi}^2}+\frac{1}{m_\rho^2};
~~~ C_{01} = 0;
\end{equation}
which means that we find an attraction, and not weak, in $I=0$ and repulsion in $I=1$.
An approximate solution can be obtained using the single channel with $I=0$,
which implies using average masses for $D^*$'s and $D$'s,
but we wish to be accurate and will use the coupled channels method with the exact masses.
The term with $\frac{1}{M_{J/\psi}^2}$ in Eq.~\eqref{eq:Cij} is kept since it comes from the extended local hidden gauge formalism, but being just a $6$\% of the $\frac{1}{m_\rho^2}$ term it can be safely neglected with no appreciable change in the results.

We solve then the Bethe-Salpeter equation in coupled channels and have in matrix form
\begin{equation}\label{eq:BSeq}
T=[1-VG]^{-1} \, V,
\end{equation}
with $G={\rm diag}[G_1, G_2]$, where $G_i$ are the $D^*D$ loop functions,
which we regularize using dimensional regularization (DR) as in Ref.~\cite{Gamermann},
\begin{eqnarray}\label{eq:Gdimreg}
 G^{DR}_l &=&\frac{1}{16 \pi^2 } \bigg[ \alpha_H + \log\frac{M_1^2}{\mu^2}+\frac{M_2^2-M_1^2+s}{2s}\log\frac{M_2^2}{M_1^2} + \bigg. \nonumber\\
           & &   \bigg. \frac{p}{\sqrt{s}}  \left( \log(s-M_2^2+M_1^2+2p \sqrt{s}) \right.  \bigg.   \nonumber\\
           & & \bigg.  \left.  - \, \log(-s+M_2^2-M_1^2+2p \sqrt{s})      \right.   \bigg.     \nonumber\\
           & & \bigg. \left.   +\, \log(s+M_2^2-M_1^2+2p \sqrt{s})       \right.   \bigg.     \nonumber\\
           & &  \bigg. \left.  - \, \log(-s-M_2^2+M_1^2+2p \sqrt{s})  \right)  \bigg]
\end{eqnarray}
where $M_{1,2}$ are the masses of the two particles and $p$ the on shell three momentum of the two mesons, with the value of the renormalization energy scale $\mu=1500 \textrm{ MeV}$ and the subtraction constant $\alpha_H$ having a value close to $\alpha_H=-1.15$.

Alternatively, one can also employ the cutoff regularization scheme
\begin{equation}\label{eq:Gcut}
G^{cut}_l = \int_{0}^{q_{max}} \frac{q^2 dq}{(2\pi)^2} \frac{\omega_1 + \omega_2}{\omega_1\omega_2 \left[(P^0)^2-(\omega_1 + \omega_2)^2+i\epsilon\right]} ,
\end{equation}
where $q_{max}$ stands for the cutoff in the three momentum, $\omega_i = \sqrt{{\vec{q}}^2 + M_i^2}$ and  ${P^0}^2=s$.\\

The value of $\alpha_H$ is fine tuned to get the experimental binding of $T_{cc}$ state.
Yet, to get a finite width for the state below the $D^{*} D$ thresholds we need to consider the width of the $D^*$ states.
This is accomplished performing a convolution of the $G$ functions with the spectral function (mass distribution) of the $D^*$ states,
as done in Ref.~\cite{Guanying} (see Eqs.(4),(5) of that reference),
with the width of the $D^*$ states showing the energy dependence:
\begin{eqnarray}\label{eq:Dstar1}
\Gamma_{D^{*+}}(M_{\rm inv})&=&\Gamma (D^{*+}) \left( \frac{m_{D^{*+}}}{M_{\rm inv}}\right)^2 \cdot    \nonumber \\
 & & \left[ \frac{2}{3}\left(\frac{p_\pi}{p_{\pi, \rm on}}\right)^3+\frac{1}{3}\left(\frac{p'_\pi}{p'_{\pi, \rm on}}\right)^3\right],
\end{eqnarray}
where $p_\pi$ is the $\pi^+$ momentum in $D^{*+} \to D^0 \pi^+$ decay with $D^{*+}$ mass $M_{\rm inv}$,
and $p_{\pi, \rm on}$ the same one with the physical mass of $D^{*+}$ taken from the PDG \cite{PDG}.
Analogously, $p'_{\pi}, p'_{\pi, \rm on}$ are the same magnitudes for $D^{*+} \to D^+ \pi^0$.
The width $\Gamma(D^{*+})$ is taken from the PDG, $\Gamma(D^{*+})=83.4 \; {\rm keV}$. For the $D^{*0}$, we take
\begin{eqnarray}\label{eq:Dstar0}
\Gamma_{D^{*0}}(M_{\rm inv})&=&\Gamma (D^{*0})\left( \frac{m_{D^{*0}}}{M_{\rm inv}}\right)^2 \cdot    \nonumber \\
& & \left[0.647\left(\frac{p_\pi}{p_{\pi, \rm on}}\right)^3+0.353 \right],
\end{eqnarray}
where the second term corresponds to the $D^{*0} \to D^0 \gamma$ decay,
which does not change appreciably with the small changes in $M_{\rm inv}$ of our problem,
and we have taken the branching fractions from the PDG and the value of $\Gamma (D^{*0})= 55.3 \;\textrm{keV}$ from Ref.~\cite{kungds}.
The values of $p_\pi, p_{\pi,\, {\rm on}}$ correspond now to the $D^{*0} \to D^0 \pi^0$ decay. The results are practically indistinguishable if we use $\Gamma (D^{*0})= 55.9 \;\textrm{keV}$ from Ref.~\cite{rosner} or $77.7\;\textrm{keV}$ from Ref.~\citep{Wangzhu}, indicating that the $D^{*+} D^0$ channel is the one playing a major role in the state given its proximity to the $D^{*+} D^0$ threshold. Indeed, if we change $\Gamma (D^{*0})$ from $55.9 \;\textrm{keV}$ to $77.7 \;\textrm{keV}$, the results change in the fourth decimal.\\

In Fig.~\ref{fig:T2} we show the results for $|T_{D^{*+} D^0,\, D^{*+}D^0}|^2$ as a function of $\sqrt{s}$ for the case of two channels using the mass of Eq.~\eqref{eq:mexp2} as input \footnote{The first version of the paper was done before Refs.~\cite{LHCb:2021vvq,LHCb:2021auc} were made public. We show these results first and later we show the new results if we take the value of Eq.~\eqref{eq:mpole} for $\delta m_{exp}$.}.
\begin{figure}[h]
\centering
\includegraphics[width=0.5\textwidth]{DstD_T2.pdf}
\vspace{-0.2cm}
\caption{\small{$|T_{D^{*+} D^0,\, D^{*+}D^0}|^2$ as a function of $\sqrt{s}$.
Dashed vertical line, $D^{*+}D^0$ threshold. Continuous vertical line, $D^{*0}D^+$ threshold.}}
\label{fig:T2}
\end{figure}

We have taken two subtraction constants $\alpha_H =-0.863$ for $D^{*+} D^0$ and $\alpha_H =-1.03$ for $D^{*0} D^+$,
and we find a neat peak around the experimental mass.
We see that the explicit consideration of the $D^*$ widths provides a width at the peak.
The width of the peak for the two channels case is
\begin{equation}\label{eq:Gam3}
\Gamma\simeq 80 ~\textrm{keV}.
\end{equation}
This value is small compared with the experimental width of Eq.~\eqref{eq:mexp3}, even considering the large errors, and is about 60\% larger than those obtained in Refs.~\cite{shilingam} and \cite{xiegeng} of the order of $50~{\rm keV}$, using the couplings of $T_{cc}$ to the $D^* D$ components and the input of the $T_{cc}$ mass given by Eq.~\eqref{eq:mexp2}. The explicit consideration of the coupled channels with the convolutions done using the energy dependent widths is responsible for this increased width. However, it is about double than the value obtained in Ref.~\cite{LHCb:2021auc},  Eq.~\eqref{eq:wpole}, after the consideration of the experimental resolution. Nonetheless, we shall see later that when we use the mass of Eq.~\eqref{eq:mpole} as input, the width is considerably reduced and is in agreement with Eq.~\eqref{eq:wpole}.

It is interesting to see which are the couplings of the resonance in the case of two channels for the state corresponding to the peak of Fig.~\ref{fig:T2}. They are obtained from $T_{11}$ and $T_{12}$ as $g_{1}^2=\lim_{s \to s_R} (s-s_R)T_{11}$, $g_{2}=g_{1}T_{21}/T_{11}$.
In the easy case of neglecting the width of the $D^*$ states where the state appears as bound
and there is no problem in defining the Riemann sheet we get
\begin{eqnarray}\label{eq:gi}
g_{T_{cc}, D^{*+}D^0}&=&3658.30~{\rm MeV} ; \nonumber \\
g_{T_{cc}, D^{*0}D^+}&=&-3921.04~{\rm MeV},
\end{eqnarray}
and, as we can see, they are basically opposite to each other indicating that we have indeed a quite good $I=0$ state,
in spite of using different masses for the components and being close to thresholds. This finding is in agreement with the conclusions in Ref.~\cite{LHCb:2021auc}.

Next we make a study of the $D^0 D^0 \pi^+$ mass distribution in the decay of the resonance,
the channel observed in the experiment.
This corresponds to a diagram like the one depicted in Fig.~\ref{fig:decay}.

\begin{figure}[h]
\centering
\includegraphics[width=0.45\textwidth]{Fig3.pdf}
\vspace{-0.2cm}
\caption{\small{Mechanism for $D^0\pi^+ D^0$ decay of the $T_{cc}$ state. The diagram with $D^{*0} D^+$ decay does not lead to final $D^0 D^0 \pi^+$.}}
\label{fig:decay}
\end{figure}

\begin{figure}[h]
\centering
\includegraphics[width=0.5\textwidth]{Tcc_sigma.pdf}
\vspace{-0.2cm}
\caption{\small{$\Gamma(\sqrt{s})$ for the decay of the $T_{cc}$ into $D^0 D^0 \pi^+$.}}
\label{fig:Gamm}
\end{figure}

The decay of whichever object producing the $T_{cc}$ and decaying to $D^0 D^0 \pi^+$ can be obtained with the standard formula
\begin{equation}\label{eq:dGam}
  \dfrac{{\textrm d} \Gamma}{{\textrm d}M_{12}^2 \; {\textrm d}M_{23}^2}=\frac{1}{2} \, \dfrac{1}{(2\pi)^3} \, \dfrac{1}{s^{3/2}}\, |t|^2,
\end{equation}
where $t$ is obtained from the diagram of Fig.~\ref{fig:decay},
symmetrizing over the two $D^0$ momenta and the factor $\frac{1}{2}$ is added in the formula.
The amplitude $t$ for this process is given by
\begin{eqnarray}\label{eq:t}
  t &=& {\cal{C}}T_{D^{*+}D^0,D^{*+}D^0}(\sqrt{s}) \left[  \frac{\vec \epsilon \cdot (\vec p_1 -\vec p_2) }{M^2_{12}-m^2_{D^{*+}}+i M_{12} \Gamma_{D^{*+}}(M_{12})} \right.  \nonumber\\
   && + \left. \frac{\vec \epsilon \cdot (\vec p_3 -\vec p_2)}{M^2_{23}-m^2_{D^{*+}}+i M_{23}\, \Gamma_{D^{*+}}(M_{23})} \right],
\end{eqnarray}
where $\cal{C}$ is an arbitrary constant and $\vec \epsilon$ stands for the polarization vector of the $T_{cc} (1^+)$.
Upon summing over the polarizations $\vec \epsilon$ in $|t|^2$ for $T_{cc}$ at rest, we have terms
\begin{equation}\label{eq:pol}
\sum_{\textrm{pol.}} (\vec \epsilon \cdot \vec q_1)\, (\vec \epsilon \cdot \vec q_2) =  \epsilon_\mu \,q_1^\mu \, \epsilon_\nu \,q_2^\nu
=\left( -g^{\mu\nu} + \dfrac{P_\mu \, P_\nu}{M^2_{T_{cc}}}  \right)\, q_1^\mu \, q_2^\nu,
\end{equation}
where, $\vec q_1$ and $\vec q_2$ can be $(\vec p_1 -\vec p_2)$ and $(\vec p_3 -\vec p_2)$.
We convert the terms $\vec q_1 \cdot \vec q_2$ into invariants which can be written in terms of $M_{12}$ and $M_{23}$
using that $M^2_{12} + M^2_{12} +M^2_{23}=M^2_{T_{cc}}+ m^2_{D^0}+ m^2_{D^0}+m^2_{\pi^+}$.
Integrating Eq.~\eqref{eq:dGam} over $M_{12}$ and $M_{23}$, using the limits of the PDG for the Dalitz boundary,
we obtain the mass distribution $\Gamma(\sqrt{s})$ shown in Fig.~\ref{fig:Gamm}.\\

\begin{figure}[h]
\centering
\includegraphics[width=0.5\textwidth]{DstD_T2_new.pdf}
\vspace{-0.2cm}
\caption{\small{$|T_{D^{*+} D^0,\, D^{*+}D^0}|^2$ as a function of $\sqrt{s}$.
Dashed vertical line, $D^{*+}D^0$ threshold. Continuous vertical line, $D^{*0}D^+$ threshold.}}
\label{fig:T2_new}
\end{figure}

Next we repeat the calculations using the mass of Ref.~\cite{LHCb:2021auc}, Eq.~\eqref{eq:mpole}, as input. The new mass is obtained taking $\alpha_H =-0.870$ for $D^{*+} D^0$ and $\alpha_H =-1.03$ for $D^{*0} D^+$. In Fig.~\ref{fig:T2_new} and \ref{fig:Gamm_new}, we show now $|T_{D^{*+} D^0,\, D^{*+}D^0}|^2$ and the $D^0 D^0 \pi^+$ spectrum respectively. We see that now the width at half the strength of the peak is
\begin{equation}\label{eq:Gam_new}
\Gamma\simeq 43 ~\textrm{keV},
\end{equation}
which is in good agreement with the findings of Ref.~\cite{LHCb:2021auc} in Eq.~\eqref{eq:wpole}. The shape of the spectrum in Fig.~\ref{fig:Gamm_new} is practically identical to the one obtained from analysis of the LHCb data in Ref.~\cite{LHCb:2021auc} taking into account the experimental resolution, and also has a small contribution between the two thresholds, which is tied to the $D^0 D^0 \pi^+$ spectrum and does not show up in $|T|^2$.
\begin{figure}[h]
\centering
\includegraphics[width=0.5\textwidth]{Tcc_sigma_new.pdf}
\setlength{\unitlength}{0.0275\linewidth}
    \begin{picture}(100,0)

       \put(17.4,13.3){\includegraphics[width=16\unitlength]{zoom_Tcc_sigma_new.pdf}}
    \end{picture}
\caption{\small{$\Gamma(\sqrt{s})$ for the decay of the $T_{cc}$ into $D^0 D^0 \pi^+$.The inset in the figure is a zoom to illustrate the mass distribution between $D^{*+} D^0$ and $D^{*0} D^+$ thresholds.}}
\label{fig:Gamm_new}
\end{figure}

The couplings that we get now are
\begin{eqnarray}
g_{T_{cc}, D^{*+}D^0}&=&3884.68~{\rm MeV} ; \nonumber \\
g_{T_{cc}, D^{*0}D^+}&=&-4144.26~{\rm MeV} .
\end{eqnarray}\label{eq:gi_new}

One should stress that these couplings are also consistent with those determined by the experimental analysis \cite{LHCb:2021auc}
\begin{equation*}
 |g| >\frac{5.1}{\sqrt{2}}=3.6~\textrm{GeV} \; \left(\frac{4.3}{\sqrt{2}}=3.0~\textrm{GeV} \right) ~~\textrm{at}~~90(95\%)~\textrm{CL}
\end{equation*}
and close by to them.\\

It is also interesting to see what do we get if we assume just one channel with exact $I=0$ as assumed in the analysis of Ref.~\cite{LHCb:2021auc}, Eq.~\eqref{eq:Iso}, and averaged masses for the $D^*$ mesons and $D$ mesons. The calculations are done with a single channel with $V$ given by Eq.~\eqref{eq:Vij} with $C_{00}$ of Eq.~\eqref{eq:C00}. The convolved $G$ function is taken as the average of $G_{D^{*+}D^0}$ and $G_{D^{*0}D^+}$ using average masses and the values of the widths, Eqs.~\eqref{eq:Dstar1},~\eqref{eq:Dstar0} for each $G$ function and a single $\alpha_H$ for the two channels. The results do not change qualitatively from those of  Figs.~\ref{fig:T2_new} and \ref{fig:Gamm_new}, only the width of the state is now $\Gamma\simeq 55 ~\textrm{keV}$ and the strength of the $D^0 D^0 \pi^+$ spectrum between the thresholds, while still very small is about three times bigger than before, as a consequence of the change of the thresholds when employing average masses.\\

It is interesting to remark the coincidence in practice of the approach of Ref.~\cite{LHCb:2021auc} making fits to the data with a unitary Breit-Wigner amplitude and our approach based upon the use of the $D^*D$ scattering matrix, with the $G$ function convolved to account for the $D^*$ widths, and the explicit mechanism of Fig.~\ref{fig:decay} to account for the $D^0 D^0 \pi^+$ production. The formalisms look rather different but the physics contained in them coincide. We would expect the same results for other mass distributions discussed in Ref.~\cite{LHCb:2021auc}. In particular, the most relevant, the lack of any signal in channels related to a possible $I=1$ state, is guaranteed in our approach since we already showed that we do not get any state for $I=1$, since the interaction is repulsive there.\\

Another interesting information can be extracted using the cutoff regularization of Eq.~\eqref{eq:Gcut} and we obtain $q_{max}=415$~MeV when taking the mass of Eq.~\eqref{eq:mexp2} and $418.6$~MeV when using the mass of Eq.~\eqref{eq:mpole}. This value is somewhat small compared with the $600$~MeV that one needs in the study of the low lying scalar mesons ($\sigma$, $f_0$, $a_0$) of $q_{max}=600$~MeV \cite{Liang:2014tia}. Since, in one channel one has $T=\left[V^{-1}-G\right]^{-1}$, a decrease of $|V|$ by means of a repulsive interaction induces an increase in $|G|$ to get the pole at the same place, implying a larger cut off. We perform the test of increasing the repulsion of $J/\psi$ exchange by a factor $3$ in Eq.~\eqref{eq:Cij}, which still makes this contribution only about $18$\% of the $\rho$ exchange and we need $q_{max}=476$~MeV, closer to the $600$~MeV used in Ref.~\cite{Liang:2014tia}. Note that our approach generates an accurate interaction from the exchange of light vectors, which is consistent with heavy quark symmetry, but subleading terms, like the exchange of heavy vectors which do not follow that rule, are less accurate.

\section{Summary}

In summary, we get a molecular state of $D^{*+} D^0, D^{*0} D^+$,
with a mixing that corresponds very approximately to an $I=0$ state.
No signal is seen for the orthogonal, approximately $I=1$ state, as one can see in Fig. 2.
This is in contrast to the suggestion made in Ref.~\cite{shilinewnew} that two states could come from isospin mixing.
Actually, the small bump in the $D^0 D^0 \pi^+$ spectrum suggested in Ref.~\cite{shilinewnew} as a possible new state,
also shows up in our spectrum of $D^0 D^0 \pi^+$ in Fig.~\ref{fig:Gamm},
but since this small bump does not appear in $|T|^2$ in Fig.~\ref{fig:T2},
it has to be associated to the decay channel $D^0 D^0 \pi^+$ and its phase space
and not to a physical state.
This also means that measuring other decay channels would provide new and valuable information, as it has been shown in Ref.~\cite{LHCb:2021auc}. \\

The analysis of the LHCb data done in Ref.~\cite{LHCb:2021auc}, considering the experimental resolution and using a unitary Breit Wigner amplitude, has been most useful since it allows to  compare with theoretical calculations as the one we have done. We have shown that when using the mass obtained in Ref.~\cite{LHCb:2021auc} as input, the width obtained for the $T_{cc}$ state and the $D^0 D^0 \pi^+$ mass distribution are in remarkable agreement with the results reported in  Ref.~\cite{LHCb:2021auc}.

\section{ACKNOWLEDGEMENT}
This work is partly supported by the National Natural Science Foundation of China under Grants No. 11975083 and No. 12047567.
This work is also partly supported by the Spanish Ministerio de Economia y Competitividad (MINECO)
and European FEDER funds under Contracts No. FIS2017-84038-C2-1-P B, PID2020-112777GB-I00,
and by Generalitat Valenciana under contract PROMETEO/2020/023.
This project has received funding from the European Union Horizon 2020 research and innovation programme
under the program H2020-INFRAIA-2018-1, grant agreement No. 824093 of the ``STRONG-2020" project.
The present work has been also partially supported by the Czech Science Foundation, GACR Grant No. 19-19640S.

redpajama_set_name: RedPajamaArXiv


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