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Man arrested in Texas faces murder charge in Iowa City shooting

IOWA CITY — An Iowa City man has been arrested in Texas in connection with the April 20 shooting death of Kejuan Winters.

Reginald Little, 44, was taken into custody Friday by the Lubbock County Sheriff’s Office, according to Iowa City police.

Little faces a charge of first-degree murder and is awaiting extradition back to Iowa City.

The shooting happened in an apartment at 1960 Broadway St. around 9:55 a.m. April 20. Police said gunfire could be heard during the call to police.

Officers found Winters, 21, of Iowa City, with multiple gunshot wounds. He died in the apartment.

Police said Durojaiya A. Rosa, 22, of Iowa City, and a woman were at the apartment and gave police a description of the shooter and said they heard him fighting with Winters before hearing gunshots.

Surveillance camera footage and cellphone records indicated Little was in the area before the shots were fired, police said.

Investigators also discovered Little and Rosa had been in communication about entering the apartment, and Rosa told police he and Little had planned to rob Winters.

Rosa also faces one count of first-degree murder.

The shooting death spurred three additional arrests.

Winters’ father, Tyris D. Winters, 41, of Peoria, Ill., and Tony M. Watkins, 39, of Iowa City, were arrested on attempted murder charges after confronting another person later that day in Coralville about the homicide, and, police say, shooting that person in the head and foot.

Police also arrested Jordan R. Hogan, 21, of Iowa City, for obstructing prosecution, saying he helped the suspect, Little, avoid arrest.

First-degree murder is a Class A felony punishable by an automatic life sentence.

Comments: (319) 339-3155; lee.hermiston@thegazette.com




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Pence’s Iowa visit underscores coronavirus worry

DES MOINES — In traveling to Iowa to call attention to the burdens COVID-19 brought to religious services and the food supply, Vice President Mike Pence unwittingly called attention to another issue: whether the White House itself is safe from the disease.

So far this week, two White House aides — President Donald Trump’s valet on Thursday, and Pence’s press secretary on Friday — have tested positive for the virus.

On Friday morning, Pence’s departure to Des Moines was delayed an hour as Air Force Two idled on a tarmac near Washington. Though Pence’s press secretary was not on the plane, White House physicians through contact tracing identified six other aides who had been near her who were aboard, and pulled them from the flight. The White House later said the six had tested negative.

Trump, who identified the Pence aide as press secretary Katie Miller, said he was “not worried” about the virus in the White House.

Nonetheless, officials said they were stepping up safety protocols and were considering a mandatory mask policy for those in close contact with Trump and Pence.

The vice president and 10 members of his staff are given rapid coronavirus tests daily, and the president is also tested regularly.

Miller, who is married to Trump adviser Stephen Miller, had been in recent contact with Pence but not with the president. Pence is leader of the White House coronavirus task force and Katie Miller has handled the group’s communications.

After landing in Des Moines, Pence spoke to a group of faith leaders about the importance of resuming religious services, saying cancellations in the name of slowing the spread of the virus have “been a burden” for congregants.

His visit coincided with the state announcing 12 more deaths from the virus, a total of 243 in less than two months.

Pence spoke with the religious leaders and Republican officials during a brief visit. He also spoke later with agricultural and food company executives.

“It’s been a source of heartache for people across the country,” Pence told about a dozen people at the Church of the Way Presbyterian church in Urbandale.

Pence told the group that continued efforts to hold services online and in other ways “made incalculable difference in our nation seeing our way through these troubled times.”

Iowa is among many states where restrictions on in-person services are starting to ease. GOP Gov. Kim Reynolds, who joined both of the state’s Republican senators at the event, has instituted new rules that allow services to resume with restrictions.

At Friday’s event, some religious leaders expressed hesitation at resuming large gatherings, while others said they would begin holding services soon,

“We are pretty much in a position of uniformly believing that it’s too early to return to personal worship. It’s inadvisable at the moment particularly with rising case counts in communities where we are across the state,” said David Kaufman, rabbi of Temple B’nai Jeshurun in Des Moines.

The Rev. Terry Amann, of Church of the Way, said his church will resume services May 17 with chairs arranged so families can sit together but avoid the temptation to shake hands or offer hugs. He said hand sanitizer will be available.

A new poll by The University of Chicago Divinity School and the Associated Press-NORC Center for Public Affairs Research shows just 9 percent of Americans think in-person services should be allowed without restrictions, while 42 percent think they should be allowed with restrictions and 48 percent think they shouldn’t be allowed at all.

Pence later met with agriculture and food industry leaders. Iowa tops the nation in egg production and pork processing and is a top grower of corn and soybeans.

Meatpacking is among the state’s biggest employers, and companies have been working to restart operations after closing them because hundreds of their workers became infected.

As Pence touted the Trump administration’s announcement of the reopening of 14 meatpacking plants including two of the worst hit by coronavirus infections in Perry and Waterloo, the union representing workers called for safer work conditions.

“Iowa’s meatpacking workers are not sacrificial lambs. They have been working tirelessly during the coronavirus pandemic to ensure families here and across the country have access to the food they need,” said the United Food and Commercial Workers Union in a statement.

The Associated Press and the McClatchy Washington Bureau contributed to this report.




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How to Foster Real-Time Client Engagement During Moderated Research

When we conduct moderated research, like user interviews or usability tests, for our clients, we encourage them to observe as many sessions as possible. We find when clients see us interview their users, and get real-time responses, they’re able to learn about the needs of their users in real-time and be more active participants in the process. One way we help clients feel engaged with the process during remote sessions is to establish a real-time communication backchannel that empowers clients to flag responses they’d like to dig into further and to share their ideas for follow-up questions.

There are several benefits to establishing a communication backchannel for moderated sessions:

  • Everyone on the team, including both internal and client team members, can be actively involved throughout the data collection process rather than waiting to passively consume findings.
  • Team members can identify follow-up questions in real-time which allows the moderator to incorporate those questions during the current session, rather than just considering them for future sessions.
  • Subject matter experts can identify more detailed and specific follow-up questions that the moderator may not think to ask.
  • Even though the whole team is engaged, a single moderator still maintains control over the conversation which creates a consistent experience for the participant.

If you’re interested in creating your own backchannel, here are some tips to make the process work smoothly:

  • Use the chat tool that is already being used on the project. In most cases, we use a joint Slack workspace for the session backchannel but we’ve also used Microsoft Teams.
  • Create a dedicated channel like #moderated-sessions. Conversation in this channel should be limited to backchannel discussions during sessions. This keeps the communication consolidated and makes it easier for the moderator to stay focused during the session.
  • Keep communication limited. Channel participants should ask basic questions that are easy to consume quickly. Supplemental commentary and analysis should not take place in the dedicated channel.
  • Use emoji responses. The moderator can add a quick thumbs up to indicate that they’ve seen a question.

Introducing backchannels for communication during remote moderated sessions has been a beneficial change to our research process. It not only provides an easy way for clients to stay engaged during the data collection process but also increases the moderator’s ability to focus on the most important topics and to ask the most useful follow-up questions.




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Student visa holders and New Zealand citizens in Australia and the Coronavirus (COVID-19) crisis?

International students who have been in Australia for longer than 12 months who find themselves in financial hardship will be able to access their Australian superannuation. The Government will undertake further engagement with the international education sector who already provide some financial support for international students facing hardship. International students working in supermarkets will have […]

The post Student visa holders and New Zealand citizens in Australia and the Coronavirus (COVID-19) crisis? appeared first on Visa Australia - Immigration Lawyers & Registered Migration Agents.




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Presence 2.0: Beaver Builder Integration, Dark Skin & More!

Great news for the users of Presence — our multipurpose theme. We have finally released the long-awaited 2.0 version, which features major changes and improvements. What’s new in Presence 2.0? Beaver Builder Integration Dark Skin New Demo: Organic Shop New Typography and Colors options in the Customizer New Templates in Page Builder Beaver Builder Integration If you have followed recent […]




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If You’re Using Beaver Builder Lite, You Need This Addon

Hey there, I’m Ben, and I’m a guest author here at WPZOOM. Today I thought I’d share with you my experience of one of their rather awesome plugins, an addon for Beaver Builder. I know the team at WPZOOM are big fans of Beaver Builder, why not? It’s a great page builder with an excellent feature set; chances are if […]




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How to Create an Online Ordering Page for Restaurants with WooCommerce

Until recently it was something normal for any restaurant to have a well-maintained website. Even so, it seems that for many restaurants this was something difficult to achieve. In these difficult times, for many restaurant owners and other businesses in this field, owning just a simple website is no longer enough. If you still want to remain in business you […]




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How to Foster Real-Time Client Engagement During Moderated Research

When we conduct moderated research, like user interviews or usability tests, for our clients, we encourage them to observe as many sessions as possible. We find when clients see us interview their users, and get real-time responses, they’re able to learn about the needs of their users in real-time and be more active participants in the process. One way we help clients feel engaged with the process during remote sessions is to establish a real-time communication backchannel that empowers clients to flag responses they’d like to dig into further and to share their ideas for follow-up questions.

There are several benefits to establishing a communication backchannel for moderated sessions:

  • Everyone on the team, including both internal and client team members, can be actively involved throughout the data collection process rather than waiting to passively consume findings.
  • Team members can identify follow-up questions in real-time which allows the moderator to incorporate those questions during the current session, rather than just considering them for future sessions.
  • Subject matter experts can identify more detailed and specific follow-up questions that the moderator may not think to ask.
  • Even though the whole team is engaged, a single moderator still maintains control over the conversation which creates a consistent experience for the participant.

If you’re interested in creating your own backchannel, here are some tips to make the process work smoothly:

  • Use the chat tool that is already being used on the project. In most cases, we use a joint Slack workspace for the session backchannel but we’ve also used Microsoft Teams.
  • Create a dedicated channel like #moderated-sessions. Conversation in this channel should be limited to backchannel discussions during sessions. This keeps the communication consolidated and makes it easier for the moderator to stay focused during the session.
  • Keep communication limited. Channel participants should ask basic questions that are easy to consume quickly. Supplemental commentary and analysis should not take place in the dedicated channel.
  • Use emoji responses. The moderator can add a quick thumbs up to indicate that they’ve seen a question.

Introducing backchannels for communication during remote moderated sessions has been a beneficial change to our research process. It not only provides an easy way for clients to stay engaged during the data collection process but also increases the moderator’s ability to focus on the most important topics and to ask the most useful follow-up questions.




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Thunderbolting Your Video Card

When I wrote about The Golden Age of x86 Gaming, I implied that, in the future, it might be an interesting, albeit expensive, idea to upgrade your video card via an external Thunderbolt 3 enclosure.

I'm here to report that the future is now.

Yes, that's right, I paid $500




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How to Help Someone With Post-Traumatic Stress Disorder

Listening without judgement is one of the best things you can do for someone with PTSD.




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Video Tutorial: How to Create an Embroidered Patch Design in Illustrator

In today’s Adobe Illustrator tutorial I’m going to take you through the process of creating a colourful embroidered patch, based on the kinds of designs associated with National Parks. The artwork will incorporate a landscape scene at sunset, which helps to keep the design simple with a silhouette graphic and a warm colour palette. Stick […]

The post Video Tutorial: How to Create an Embroidered Patch Design in Illustrator appeared first on Spoon Graphics.




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How to Help Someone With Post-Traumatic Stress Disorder

Listening without judgement is one of the best things you can do for someone with PTSD.




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Save time by using these builders for portfolio websites and pages

If you’re a professional wanting to showcase your products, what better way is there to do so than with a personal portfolio? Maybe one that’s presented in a way that invites close study? A portfolio used to be a folder of papers you would carry around with you when visiting one potential customer after another. […]

The post Save time by using these builders for portfolio websites and pages appeared first on WebAppers.




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Best Photos of 2017 by JMG-Galleries Blog Readers

Get ready to start 2018 off on the right foot with some creative inspiration. The results of my 11th annual Best of Photos project hopefully will provide just that by introducing you to photographers and their work from all over the world. Get ready to travel around the world in 100+ links. For those who are new to my blog project, photographers taking part span the gamut of photo enthusiasts to professionals. The great thing about photography is that no matter what your skill level we all can relate equally in our love for the art of photography and visually exploring. With that in mind I encourage you to reach out to photographers whose work you enjoy to keep sharing & growing as an artist.  I am incredibly thankful that this tradition has been embraced and enjoy seeing how familiar faces have evolved their work & grown over the years.  I hope reviewing your best photos of the year and comparing them to years pasts keeps you inspired and aware of your progress as a photographer. If you’d like to take part next year and be informed when submissions open for the “Best Photos of 2017? blog project add your name to my mail list. You won’t be spammed. I send out newsletters quite infrequently. Thank to everyone who took part!  I invite you to visit each link below as I have and introduce yourself to many of the participating photographers. Best Photos of 2017 Jim M. Goldstein – Best Photos of 2017 by Jim M. Goldstein Randy Langstraat – My Ten Favorite Photos of 2017 Michael Russell – My Top 10 Photos of 2017 Phil Colla – Best Natural History Photos of 2017 Greg Russell | Alpenglow Images – 2017 year in review Mike Matenkosky – My Favorite Photos from 2017 Khürt Williams – 2017 Favourites Carl Donohue – Expeditions Alaska Kevin Ly – Kevin Ly | Best of 2017 Martin Quinn – Quinn Images – Best of 2017 Robin Mayoff – RHM Images Best of 2017 Craig L. Howe – On the Move Johann A. Briffa – 2017: A Photographic Retrospective Harold Davis – Harold Davis—My Best of 2017 Denise Goldberg – top photos :: 2017 William Bean – Bill’s Blog Greg Clure – Best Images of 2017 Rick Holliday – Best Images of 2017 Peter Carroll – Peter Carroll – Favourites of 2017 Mike Chowla – My 10 Best Photos of 2017 Wendy M. Seagren – wendy seagrens best photography 2017 QT Luong – 2017 in Review, Favorites, and Seasons Greetings Jenni Brehm – Changing Perspectives Rachel Cohen – Rachel Cohen Photography Brian Knott (FMKphoto) – 2017 year in review Shikha Shrivastava – My favorite photos of 2017 Dave Wilson – Dave Wilson Photography – Best of 2017 Larry Millican – Millican Photography Alexander S. Kunz – My Favorite Photos from 2017 Mark Duffy – 500px Stefan Baeurle – Top 10 Favorites of 2017 Adrian Klein – Favorite Photos of 2017 Alan Majchrowicz – Photo Highlights 2017 Russ Bishop – Russ Bishop Photography | 2017 – The Year in Pictures Todd Henson – Best Photos of 2017: My Favorites of the Year Peter Tellone – My 2017 Top Ten Best Images Aaron Hockley – thisGruntled – Best Photos of 2017 Tony Wu – Favorite Photos of 2017 T.M. Schultze – T.M. Schultze Website Andrew S. Gibson – My Favorite Photos From 2017 John Pemberton – JPSquared – Images of 2017 Scott Thompson – Scott Shots Photography’s Top 10 Tahoe photos of 2017 ElDuro Tuco – ElDuro Tuco The DarkSlides – The DarkSlides Jon McCormack – From Ancient Cities to Endangered Animals – 2017 in Photographs Fred Mertz Photography – Fred Mertz Photography Richard Valenti – Richard Valenti Photography Jeff Hubbard – My Favorite Photos of 2017 Andrew Scharlot – 2017 Best Pictures Deb Snelson – Favorite Photos of 2017 Richard Wong – Favorite Photos From 2017 – Richard Wong Caleb Weston – Dubland Gary Crabbe / Enlightened Images – My Favorite Landscape Photos of 2017 – A Year-End Retrospective Tom Whelan – Nature Diary Robert Varley – Robert Varley Kyle Jones – Favorites from 2017 Neil Creek – Neil Creek – Photographer tim fiddimore – North Devon 2017 Richard Murphy Photography – Best of 2017 Alan Dahl – Favorites of 2017 Gabor Ruff – Natural History Photography – Highlights from 2017 Kevin Ebi – Living Wilderness: Best of 2017 Clint Losee – 10 Best Landscape and Scenic Photos of 2017 Mark Hespenheide – Best of ’17 Ilias Katsouras – Okrivadas David J Grenier – 2017 Top 12 Photographs J. J. RAIA – 2017 Jim Goldstein Project Rob Tilley – Best of 2017 – My Favorite Images of the Year Björn Göhringer – Top 14 From 2017 Bernt-Inge Madsen – Bernt-Inge.com USKestrel Photography (Pete Miller) – My favorite images of 2017: A Different Perspective Milan Hutera – 2017 in Pictures Fred Murphy – Fred Murphy Photography Harry Hitzeman – My Top Photographs of 2017 Andrew Thomas – Best of 2017 – Aerials Dean Foster – 2017: Year in Review Simon Ng – 2017 A Year of Water Michael Katz – Michael Katz Photography Drake Dyck – Top Ten (favourite) Images of 2017 Jose Manuel Santos – The Magnificent Douro Valley Gary Buzel – Gary Buzel Studios Bryan William Jones – Top Photos of 2017 Peter Knott – 2017 Favourites Kamala Venkatesh – Kamala Venkatesh Jason Frye – My Top 10 of 2017 Jackson Frishman – Favorites of 2017 Thomas Yackley – Top Ten Landscape and Nature Photos of 2017 Mark Graf – 2017 – A Year of Despair and Dragons Kurt Lawson – 10ish Favorites of 2017 Jorge Ramirez – Selection 2017 William Neill – William Neill’s Light on the Landscape Photoblog Daniel Leu – Favorites – 2017 Derrald Farnsworth-Livingston – Top 10 Favorite Images from 2017 ~ Journey of Light Photography Mike Christoferson – 2017 Has Come and Gone Carol Schiraldi – Best of 2017 – My Top Images Robin Black – My 10 best photos (or personal favorites, anyway) of 2017 Bryn Tassell – […]




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Best Photos of 2018 by JMG-Galleries Blog Readers

I’m excited to share the results of my 12th annual Best of Photos project.  115 photographers from around the world (amateur and professional alike) have shared their best photos of 2018.  I’m always amazed at the quality of work shared and I hope it’s a source inspiration to you for the coming year. For those who are new to my blog project, photographers taking part span the gamut of photo enthusiasts to professionals. The great thing about photography is that no matter what your skill level we all can relate equally in our love for the art of photography and visually exploring. With that in mind I encourage you to reach out to photographers whose work you enjoy to keep sharing & growing as an artist.  I am incredibly thankful that this tradition has been embraced and enjoy seeing how familiar faces have evolved their work & grown over the years.  I hope reviewing your best photos of the year and comparing them to years pasts keeps you inspired and aware of your progress as a photographer. If you’d like to take part next year and be informed when submissions open for the “Best Photos of 2019” blog project add your name to my mail list. You won’t be spammed. I send out newsletters quite infrequently. Thank to everyone who took part!  I invite you to visit each link below as I have and introduce yourself to many of the participating photographers. Best Photos of 2018 Jim Goldstein – Best Photos of 2018 by Jim M. Goldstein Michael Russell – My Top 10 Photographs Of 2018 Dave Wilson – Best of 2018 Joseph Smith – 2018 Favorites – A Baker’s Dozen Randy Langstraat – My Ten Favorite Photos of 2018 Chuq Von Rospach – Chuqui 2018 Best Of Photos Rachel Cohen – Best of 2018 Lucy Autrey Wilson – A Thousand Words Romain Guy – Best of 2018 Alexander S. Kunz – My Favorite Photos from 2018 Stefan Baeurle – Top 10 Favorites of 2018 QT Luong – 2018 in Review Jenni Brehm – Best pf 2018 – Changing Perspectives Sean Bagshaw – My Favorite Photos Of 2018 Johann A. Briffa – 2018: A Photographic Retrospective Exploring Light – 2018: A Year In Review Drake Dyck – Top Ten (favourite) Images of 2018 Richard Wong – Fine Art Photography Prints – 2018 Ramen Saha – 2018 – Ten moments Martin Quinn – Quinn Images 2018 Favorites TheDarkSlides – TheDarkSlides Best of 2018 Denise Goldberg – top photos :: 2018 Peter Carroll – Favourites of 2018 Jeff Hubbard – Ten Favorite Photos 2018 Gary Crabbe – My Favorite Landscape Photos of 2018 – A Year-End Retrospective Harold Davis – Harold Davis – Best of 2018 Werner Priller – My Favorite Images of 2018/ Phil Colla – Natural History Photography – Best Photos Of 2018 Aaron Hockley – Tech Photo Guy: Best Photos of 2018 Dan Baumbach – 2018 in Review Jao van de Lagemaat – Jao’s best images of 2018 Pete Miller-USKestrel Photography – Favorite Images of 2018 Shikha – Eastern Sierra – My favorite images of 2018 Bruce Leventhal – Reflecting on 2018 Christopher Sheppard – The Stories Behind My Favorite Photographs of 2018 Alan Majchrowicz – Photo Highlights 2018 Tom Whelan – Nature Diary Todd Henson – Best Photos of 2018: My Favorites of the Year Khürt Williams – Island in the Net Patricia Davidson – My Top 10 Favorite Photos of 2018 Russ Bishop – 2018 – The Year in Pictures Jim Coda – Some of My Favorite Images from 2018 Steve Cole – Birds Eye View of 2018 Fred Mertz Photography – Best Photos of 2018 Martijn van der Nat – Best of 2018 Graf Nature Photography – Twenty Eighteen Wanderings Scott Thompson – My Top 10 Tahoe Area Photos of 2018 Kyle Jones – 2018 Favorites Clint Losee – My Best Landscape and Nature Photos of 2018 Caleb Weston – Caleb Weston – Dubland Media Greg Clure – Best of 2018 Rick Holliday – Favorites from 2018 J.J. RAIA – J.J. RAIA Best Photos of 2018 Francis Gagnon – Francis Gagnon Best Photos of 2018 Mike Chowla – My Ten Best of Images of 2018 Carl Donohue – 2018 in photos Kurt Lawson – 10 Favorites of 2018: From Lava Rivers in Hawaii to Yosemite Snowstorms William Bean – William Bean T.M. Schultze – My Favorite Photographs of 2018 Andrew Thomas – Aerial Adventures – Best of 2018 Matt Conti – 2018 Top 20 Photos Daniel Leu – Favorites – 2018 Carol Schiraldi – Best of 2018 from Carol’s Little World Alan Dahl – 2018 Favorite Photos Milan Hutera – 2018 in Pictures Kathy Barnhart – Flickr Sensing Light Best of 2018 Album Greg Russell – Alpenglow Images 2018 Year in Review Derrald Farnsworth-Livingston – Top 10 Favorite Images from 2018 Kevin Ebi – Living Wilderness: Best of 2018 Jackson Frishman – Favorites of 2018 Greg A. Lato – My Favorite Photos of 2018 Mike Shipman – Mike Shipman’s Best of 2018 Beth Young – Best Photos of 2018 Dale Grosbach – My Favorites – 2018 Brent Huntley – Photography and Travel Charlie Russell – Best Wildflower Photos for 2018 Bryan William Jones – Jonesblog Tony Wu – Favorite Photos of 2018 Adrian Klein – 2018 Photo Retrospective Scott McGee – Top 10 of 2018 William Neill – My Favorite Photographs of 2018 Thomas Yackley – Yackley Photo Anne McKinnell – Best Photos of 2018 Holly Davison – Top Ten of 2018 Brian Knott – Brian Knott Photography 2018 Year In Review Anna DeStefano – Affirmation Photography’s Best of 2018 Ingeborg Fernau – Magicalglow Photography Blog Emil Powella – Top 10 of 2018 Elduro Tuco – Elduro Tuco Eric Chan – Favorites From 2018 TP Chapman – Best of 2018 Ilias Katsouras – Okrivadas Molly Dean – Best Photos of 2018 Sarah Marino – 2018 Wrap-Up and a Few Favorite Photographs Michael Frye – My Top Photographs of 2018 Jim Stamates – Memories of 2018 Tim Aston – Favorites from 2018 Samantha Decker – My Best […]




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Best Photos of 2019 by JMG-Galleries Blog Readers

I’m excited to share the results of my 13th annual Best of Photos project.  112 photographers from around the world (amateur and professional alike) have shared their best photos of 2019.  I’m always amazed at the quality of work shared and I hope it’s a source inspiration to you for the coming year. For those who are new to my blog project, photographers taking part span the gamut of photo enthusiasts to professionals. The great thing about photography is that no matter what your skill level we all can relate equally in our love for the art of photography and visually exploring. With that in mind I encourage you to reach out to photographers whose work you enjoy to keep sharing & growing as an artist.  I am incredibly thankful that this tradition has been embraced and enjoy seeing how familiar faces have evolved their work & grown over the years.  I hope reviewing your best photos of the year and comparing them to years pasts keeps you inspired and aware of your progress as a photographer. If you’d like to take part next year and be informed when submissions open for the “Best Photos of 2020” blog project add your name to my mail list. You won’t be spammed. I send out newsletters quite infrequently. Thank to everyone who took part!  I invite you to visit each link below as I have and introduce yourself to many of the participating photographers. Best Photos of 2019 Best Photos of 2019 – JMG-Galleries – Jim M. Goldstein My Top 10 Photographs Of 2019 – Michael Russell My Ten Favorite Photos of 2019 – ADVENTR – Randy Langstraat Favorite Photos of 2019 – T.M. Schultze My Favorite Photos from 2019 – Alexander S. Kunz Best of 2019 – Dave Wilson Harold Davis—Best of 2019 – Harold Davis 2019: A Photographic Retrospective – Johann A. Briffa Top 10 Favorites of 2019 – Stefan Baeurle My Best Natural History Photos of 2019 – Phil Colla My Best Photos From 2019 – Daniel Brinneman Best Photos of 2019 – Peter Tellone Rétrospective des meilleures photos de l’année 2019 – Francis Gagnon Best of 2019 by Rachel Cohen – Rachel Cohen Photo Highlights 2019 – Alan Majchrowicz My Top 10 Nature Photos of 2019 – Greg Vaughn 2019 – The Year in Pictures | Russ Bishop Photography – Russ Bishop 2019 Favorites – A Split Year – Joseph Smith My 12 Favorite Photos of 2019 – Chuq Von Rospach Wild Drake Photography – Drake Dyck Matt Payne Photography – Matt Payne My Favorite Images Of 2019 – Werner Priller Favourites from 2019 – Bryn Tassell My Favorite Photos of 2019 – A Year-End Retrospective – Gary Crabbe / Enlightened Images 2019 Favorite Photographs – Pat Ulrich Without reflection we go blindly on our way – Bjorn Kleemann 2019 – Ten moments – Ramen Saha top photos :: 2019 – Denise Goldberg Changing Perspectives – Best of 2019 – Jenni Brehm Island in the Net – Khürt Williams Best Photos of 2019: My Favorites of the Year – Todd Henson My Ten Best of Images of 2019 – Mike Chowla 2019 Favorite Photos – Alan Dahl Tech Photo Guy – Best Photos 2019 – Aaron Hockley 2019 Favorites – Martin Quinn Best of TheDarkSlides 2019 – TheDarkSlides 2019 Jim Goldstein Project – J.J. RAIA My Favorites of 2019 – Rich Greene My Favorite Images of 2019 (aka ‘Best of 2019’) – Pete Miller 2019 Year in Review, Decade in Review – Robin Black Photography Under Pressure Photography – Scott McGee My favorite Slovenia photos of 2019 – Luka Esenko 5 Moments in Time – 2019 – Gavin Crook My favorite photos of the decade – Matt Payne My Ten Favourite Images of 2019 – Jens Preshaw 2019 in Pictures – Milan Hutera Twelve from 2019 – Tom Whelan My Favorite Photos of 2019 – Jeff Hubbard 2019 Favorites – Rick Holliday Best of the Best 2019 – Richard Valenti Best Landscape and Nature Photos of 2019 – Clint Losee Best of 2019 – My Favorite Images of the Year – Rob Tilley 2019 Year in Review – Greg Russell | Alpenglow Images Best of The Decade Including 2019 – Adrian Klein Best of 2019 – Brian Knott Natural History Photography – Highlights from 2019 – Gabor Ruff Best of 2019 – Jeff Dupuie Top 2019 – Eric Chan Best of 2019 – Greg Clure Twenty Nineteen: In retrospect – Charlotte Gibb Favorite Blog Photos of 2019 – Jim Coda My Favorites 2019 – Beth Young Living Wilderness: Best of 2019 – Kevin Ebi 2019 Favorites – Mike Cleron Best of 2019 – Romain Guy 2019 Favorite Images – Sam Folsom Michael Katz Photography – Michael Katz Twenty Nineteen – Mark Graf 2019 in Review – and Happy New Year” Photography & Travel – brent huntley Top 10 Favorite Images from 2019 – Derrald Farnsworth-Livingston My Photo Highlights of 2019 – Caleb Weston Lagemaat Photography – Best images of 2019 – Jao van de Lagemaat Favorites from 2019 – Kyle Jones A Baker’s Dozen – Mike Christoferson 10 Favorites of 2019: An Amazing Year – Kurt Lawson Top 20 Photographs of 2019 – Year-End-Retrospective – Landscape Photography Reader/David Leland Hyde Favorite Photos of 2019 – Deb Snelson Favorites – 2019 – Daniel Leu Best of 2019 – Steve Cozad Fog from Above in 2019 – Andrew Thomas Favorites of 2019 – Mick McMurray Some Favorites from 2019 – Josh Meier Top 10 Images of 2019 – Stephen L. Kapp Top Ten of 2019 – Holly Davison Best 2019 – Barbara Michalowska The Creative Photographer – Andrew S. Gibson My Favorite Photos of 2019 – Patricia Davidson A Thousand Words – Lucy Autrey Wilson 2019 Top Twelve Photographs – David J Grenier Urban Dinosaurs – Steven M. Bellovin Best of 2019 – Thomas Yackley Carol’s Little World – Best of 2019 – Carol Schiraldi My favourite shots of 2019 – Catalin Marin Top 2019 Photos – Matt Conti Top Ten 2019 – Phyllis Whitman Hunter Favorites from […]




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Older Arctic Sea Ice is Disappearing

Video by NASA’s Goddard Space Flight Center / Jefferson Beck Arctic sea ice has not only been shrinking in surface area in recent years, it’s becoming younger and thinner as well. In this animation, where the ice cover almost looks … Continue reading





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Surrender

To be a caregiver at home for someone who is severely injured is to surrender. You surrender your time, put your ambitions on hold, and surrender many of the simple pleasures. You also surrender your peace of mind, your good night’s sleep, and routine. But there are ways to make life a little easier and more enjoyable...




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How to Foster Real-Time Client Engagement During Moderated Research

When we conduct moderated research, like user interviews or usability tests, for our clients, we encourage them to observe as many sessions as possible. We find when clients see us interview their users, and get real-time responses, they’re able to learn about the needs of their users in real-time and be more active participants in the process. One way we help clients feel engaged with the process during remote sessions is to establish a real-time communication backchannel that empowers clients to flag responses they’d like to dig into further and to share their ideas for follow-up questions.

There are several benefits to establishing a communication backchannel for moderated sessions:

  • Everyone on the team, including both internal and client team members, can be actively involved throughout the data collection process rather than waiting to passively consume findings.
  • Team members can identify follow-up questions in real-time which allows the moderator to incorporate those questions during the current session, rather than just considering them for future sessions.
  • Subject matter experts can identify more detailed and specific follow-up questions that the moderator may not think to ask.
  • Even though the whole team is engaged, a single moderator still maintains control over the conversation which creates a consistent experience for the participant.

If you’re interested in creating your own backchannel, here are some tips to make the process work smoothly:

  • Use the chat tool that is already being used on the project. In most cases, we use a joint Slack workspace for the session backchannel but we’ve also used Microsoft Teams.
  • Create a dedicated channel like #moderated-sessions. Conversation in this channel should be limited to backchannel discussions during sessions. This keeps the communication consolidated and makes it easier for the moderator to stay focused during the session.
  • Keep communication limited. Channel participants should ask basic questions that are easy to consume quickly. Supplemental commentary and analysis should not take place in the dedicated channel.
  • Use emoji responses. The moderator can add a quick thumbs up to indicate that they’ve seen a question.

Introducing backchannels for communication during remote moderated sessions has been a beneficial change to our research process. It not only provides an easy way for clients to stay engaged during the data collection process but also increases the moderator’s ability to focus on the most important topics and to ask the most useful follow-up questions.




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Illustrator Tutorial: How to Create a Folder Icon

In today’s tutorial, we’re going to take an in-depth look behind the process of creating a folder icon, and see how easy it is to build one from scratch using nothing more than a couple of basic geometric shapes, which we’re going to adjust here and there. So, assuming you already have Illustrator up and […]

The post Illustrator Tutorial: How to Create a Folder Icon appeared first on Bittbox.




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Windows 8 HTML5 WinRT RSS reader app

WinJS is a JavaScript framework for Windows 8, and David Rousset uses it here to create a quick RSS reader. He shows how in a tutorial series. This first article shows the way to build a welcome screen that employs WinJS ListView control. Blend and CSS3 are employed. The second tutorial shows work on the Read the rest...





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9 Ways To Focus A Wandering Mind

As everyone has made the temporary shift to WFH (work from home), many are surrounded by distractions. The 9 ways to focus a wandering mind infographic originally from On Stride Financial in the UK and now published on Headway Capital, offers simple ways to help you refocus.

It’s probably no surprise that the human mind has a tendency to wander. Scientific research has discovered that this trait is almost ubiquitous among humans, and most of us experience it regularly..

Constant mind wandering is a source of frustration for many people. In their study “A Wandering Mind is an Unhappy Mind,” researchers found that that experiencing a regular lack of concentration has a negative impact on overall mood and state of mind. In short, people were less happy when their minds wandered.

Luckily, research into ways of combating this phenomenon is also plentiful. And while we may never be able to eliminate our mind’s propensity for wandering, there are lots of simple techniques that can help improve concentration and focus.

Next time you’re feeling a little distracted, try out some of these techniques and see if you can bring your mind back on task.

A little text-heavy design, but the illustrations help with each section. The comprehensive sources help establish the credibility of the information, and the infographic landing page includes clickable links to all of the source material. Nice touch!

Found on Creative Bloq




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Understanding Climate Change Means Reading Beyond Headlines

By David Suzuki The David Suzuki Foundation Seeing terms like “post-truth” and “alternative facts” gain traction in the news convinces me that politicians, media workers and readers could benefit from a refresher course in how science helps us understand the … Continue reading





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Modern Website Deliverables

You’re hiring a web designer or providing web design services, what’s included in a normal project? In other words, what are the deliverables, and the use of a membership website builder could be essential for this. Let’s start by defining what a deliverable is. Wikipedia defines a deliverable as: …a tangible or intangible good or […]

The post Modern Website Deliverables appeared first on Psychology of Web Design | 3.7 Blog.




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Bikefinder re-design

Bikefinder is a startup that I’m and advisor and investor in. They are making an integrated GPS tracker for bikes with a sim card, so you can track it anywhere via web or app. The online store was setup on WooCommerce using the Storefront theme, and I made a new custom design for it. Instead […]




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How to Properly Create a Wholesale Order Form in WordPress

Want to create a wholesale order form in WordPress? If you’re a wholesaler looking to get online, but don’t want to manage a full-fledged eCommerce store, then you might want to consider adding a simple wholesale order form to your WordPress site. In this article, we’ll show you how to properly create a simple wholesale […]

The post How to Properly Create a Wholesale Order Form in WordPress appeared first on IsItWP - Free WordPress Theme Detector.




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6 Best Divi Plugins That Work on Top of Divi Builder

Are you looking for some good Divi plugins to extend your site features? While you can certainly use any plugins with the Divi theme and Divi Builder plugin, the Divi community has created some plugins specifically for the Divi users. In this article, we’ll show you some of the best Divi plugins that let you […]

The post 6 Best Divi Plugins That Work on Top of Divi Builder appeared first on IsItWP - Free WordPress Theme Detector.




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10 On-Page SEO Factors You Should Consider [2019]

When you want to succeed in the organic search engine results today, you have to focus on your website and learn what you should do to optimize it. There are many factors that can help you with that, form the technical, off-page, and on-page. All these factors and parts of a website require updating and […]

Original post: 10 On-Page SEO Factors You Should Consider [2019]

The post 10 On-Page SEO Factors You Should Consider [2019] appeared first on Daily Blog Tips.




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Download older plugin versions from wordpress.org

So you’ve updated your plugins… … and your blog doesn’t work anymore … and you have no backup … … […]




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Download older plugin versions from wordpress.org

There’s a simple way to get hold of previous versions of your WordPress plugins, for example if a current version […]




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How to Help Someone With Post-Traumatic Stress Disorder

Listening without judgement is one of the best things you can do for someone with PTSD.




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Children’s Exposure to Secondhand Smoke May Be Vastly Underestimated by Parents

Tel Aviv University Press Release Smoking parents misperceive where and when their kids are exposed to cigarette smoke, Tel Aviv University researchers say Four out of 10 children in the US are exposed to secondhand smoke, according to the American … Continue reading




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Federal Watchdog Backs Reinstating Ousted Vaccine Expert

A federal watchdog is recommending that ousted vaccine expert Rick Bright be reinstated while it investigates whether the Trump administration retaliated against his whistleblower complaints when it removed him from a key post overseeing the coronavirus response, Bright's lawyers said Friday.




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My Favorite Gifts For Photographers Under $100(ish)

Every holiday season, I get an influx of DMs, tweets, texts and messages from followers, friends and family asking for my photo gear recommendations. This year, rather than putting together a list of all the high-tech cameras and lenses that come with high-price tags to match – I wanted share some affordable add-ons that thrifty photographers should have in their arsenal. As I like to say, the best camera is the one you have with you and most of the time that’s the one in your pocket ????  If you are looking for gift ideas for the photographer on your list these are my go-tos under $100(ish).   Moment Lens  These pocket size lenses will transform your mobile device into a lightweight DSLR. With a variety of lenses from fisheye to macro, Moment add-ons are durable, easy-to-use and have incredible clarity. Compatible with almost every smartphone, these compact lens take the camera in your pocket up a notch.          Shure Mic Shure has transformed mobile audio with its line of mobile mics. Regardless of your price point, the audio company creates options that will take your sound from distorted to crystal clear. As a photographer and podcaster […]

The post My Favorite Gifts For Photographers Under $100(ish) appeared first on Chase Jarvis Photography.




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Choose Wonder Over Worry with Amber Rae

In a time when fear, doubt, and uncertainty creep in, it’s more important than ever to tune into our emotional wellness and health. That’s why I’m excited to share my conversation with Amber Rae on the show today. Amber Rae has been called “The Brené Brown of Wonder.” She’s a multi-talented artist, entrepreneur, and author. Her work has been featured in The New York Times, NY Mag, TODAY, Self, Fortune, Forbes and Entrepreneur and collaborated with numerous big brands. She reaches over 2 million people per week with her words and art. Her book Choose Wonder Over Worry: Move Beyond Fear and Doubt to Unlock Your Full Potential is so timely right now and her art helps us explore, visualize, and bring our well-being to the forefront. In our conversation: We are not our feelings and some of our internal voices are not all ours. How family trauma and/or generational trauma can effect us Amber shares her personal experiments to explore inner healing, including naming her inner critics and how it allows her to be able to be more observant of what comes Addiction and how can we create “wake up” calls as a catalyst for change and much more. […]

The post Choose Wonder Over Worry with Amber Rae appeared first on Chase Jarvis Photography.




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How to Foster Real-Time Client Engagement During Moderated Research

When we conduct moderated research, like user interviews or usability tests, for our clients, we encourage them to observe as many sessions as possible. We find when clients see us interview their users, and get real-time responses, they’re able to learn about the needs of their users in real-time and be more active participants in the process. One way we help clients feel engaged with the process during remote sessions is to establish a real-time communication backchannel that empowers clients to flag responses they’d like to dig into further and to share their ideas for follow-up questions.

There are several benefits to establishing a communication backchannel for moderated sessions:

  • Everyone on the team, including both internal and client team members, can be actively involved throughout the data collection process rather than waiting to passively consume findings.
  • Team members can identify follow-up questions in real-time which allows the moderator to incorporate those questions during the current session, rather than just considering them for future sessions.
  • Subject matter experts can identify more detailed and specific follow-up questions that the moderator may not think to ask.
  • Even though the whole team is engaged, a single moderator still maintains control over the conversation which creates a consistent experience for the participant.

If you’re interested in creating your own backchannel, here are some tips to make the process work smoothly:

  • Use the chat tool that is already being used on the project. In most cases, we use a joint Slack workspace for the session backchannel but we’ve also used Microsoft Teams.
  • Create a dedicated channel like #moderated-sessions. Conversation in this channel should be limited to backchannel discussions during sessions. This keeps the communication consolidated and makes it easier for the moderator to stay focused during the session.
  • Keep communication limited. Channel participants should ask basic questions that are easy to consume quickly. Supplemental commentary and analysis should not take place in the dedicated channel.
  • Use emoji responses. The moderator can add a quick thumbs up to indicate that they’ve seen a question.

Introducing backchannels for communication during remote moderated sessions has been a beneficial change to our research process. It not only provides an easy way for clients to stay engaged during the data collection process but also increases the moderator’s ability to focus on the most important topics and to ask the most useful follow-up questions.




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Mirage JS Deep Dive: Understanding Mirage JS Models And Associations (Part 1)

Mirage JS is helping simplify modern front-end development by providing the ability for front-end engineers to craft applications without relying on an actual back-end service. In this article, I’ll be taking a framework-agnostic approach to show you Mirage JS models and associations. If you haven’t heard of Mirage JS, you can read my previous article in which I introduce it and also integrate it with the progressive framework Vue.js.




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Approximate Two-Sphere One-Cylinder Inequality in Parabolic Periodic Homogenization. (arXiv:2005.00989v2 [math.AP] UPDATED)

In this paper, for a family of second-order parabolic equation with rapidly oscillating and time-dependent periodic coefficients, we are interested in an approximate two-sphere one-cylinder inequality for these solutions in parabolic periodic homogenization, which implies an approximate quantitative propagation of smallness. The proof relies on the asymptotic behavior of fundamental solutions and the Lagrange interpolation technique.




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Linear Convergence of First- and Zeroth-Order Primal-Dual Algorithms for Distributed Nonconvex Optimization. (arXiv:1912.12110v2 [math.OC] UPDATED)

This paper considers the distributed nonconvex optimization problem of minimizing a global cost function formed by a sum of local cost functions by using local information exchange. We first propose a distributed first-order primal-dual algorithm. We show that it converges sublinearly to the stationary point if each local cost function is smooth and linearly to the global optimum under an additional condition that the global cost function satisfies the Polyak-{L}ojasiewicz condition. This condition is weaker than strong convexity, which is a standard condition for proving the linear convergence of distributed optimization algorithms, and the global minimizer is not necessarily unique or finite. Motivated by the situations where the gradients are unavailable, we then propose a distributed zeroth-order algorithm, derived from the proposed distributed first-order algorithm by using a deterministic gradient estimator, and show that it has the same convergence properties as the proposed first-order algorithm under the same conditions. The theoretical results are illustrated by numerical simulations.




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High dimensional expanders and coset geometries. (arXiv:1710.05304v3 [math.CO] UPDATED)

High dimensional expanders is a vibrant emerging field of study. Nevertheless, the only known construction of bounded degree high dimensional expanders is based on Ramanujan complexes, whereas one dimensional bounded degree expanders are abundant.

In this work, we construct new families of bounded degree high dimensional expanders obeying the local spectral expansion property. This property has a number of important consequences, including geometric overlapping, fast mixing of high dimensional random walks, agreement testing and agreement expansion. Our construction also yields new families of expander graphs which are close to the Ramanujan bound, i.e., their spectral gap is close to optimal.

The construction is quite elementary and it is presented in a self contained manner; This is in contrary to the highly involved previously known construction of the Ramanujan complexes. The construction is also very symmetric (such symmetry properties are not known for Ramanujan complexes) ; The symmetry of the construction could be used, for example, in order to obtain good symmetric LDPC codes that were previously based on Ramanujan graphs.

The main tool that we use for is the theory of coset geometries. Coset geometries arose as a tool for studying finite simple groups. Here, we show that coset geometries arise in a very natural manner for groups of elementary matrices over any finitely generated algebra over a commutative unital ring. In other words, we show that such groups act simply transitively on the top dimensional face of a pure, partite, clique complex.




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A Class of Functional Inequalities and their Applications to Fourth-Order Nonlinear Parabolic Equations. (arXiv:1612.03508v3 [math.AP] UPDATED)

We study a class of fourth order nonlinear parabolic equations which include the thin-film equation and the quantum drift-diffusion model as special cases. We investigate these equations by first developing functional inequalities of the type $ int_Omega u^{2gamma-alpha-eta}Delta u^alphaDelta u^eta dx geq cint_Omega|Delta u^gamma |^2dx $, which seem to be of interest on their own right.




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Derivatives of normal Jacobi operator on real hypersurfaces in the complex quadric. (arXiv:2005.03483v1 [math.DG])

In cite{S 2017}, Suh gave a non-existence theorem for Hopf real hypersurfaces in the complex quadric with parallel normal Jacobi operator. Motivated by this result, in this paper, we introduce some generalized conditions named $mathcal C$-parallel or Reeb parallel normal Jacobi operators. By using such weaker parallelisms of normal Jacobi operator, first we can assert a non-existence theorem of Hopf real hypersurfaces with $mathcal C$-parallel normal Jacobi operator in the complex quadric $Q^{m}$, $m geq 3$. Next, we prove that a Hopf real hypersurface has Reeb parallel normal Jacobi operator if and only if it has an $mathfrak A$-isotropic singular normal vector field.




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An Issue Raised in 1978 by a Then-Future Editor-in-Chief of the Journal "Order": Does the Endomorphism Poset of a Finite Connected Poset Tell Us That the Poset Is Connected?. (arXiv:2005.03255v1 [math.CO])

In 1978, Dwight Duffus---editor-in-chief of the journal "Order" from 2010 to 2018 and chair of the Mathematics Department at Emory University from 1991 to 2005---wrote that "it is not obvious that $P$ is connected and $P^P$ isomorphic to $Q^Q$ implies that $Q$ is connected," where $P$ and $Q$ are finite non-empty posets. We show that, indeed, under these hypotheses $Q$ is connected and $Pcong Q$.




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Functional convex order for the scaled McKean-Vlasov processes. (arXiv:2005.03154v1 [math.PR])

We establish the functional convex order results for two scaled McKean-Vlasov processes $X=(X_{t})_{tin[0, T]}$ and $Y=(Y_{t})_{tin[0, T]}$ defined by

[egin{cases} dX_{t}=(alpha X_{t}+eta)dt+sigma(t, X_{t}, mu_{t})dB_{t}, quad X_{0}in L^{p}(mathbb{P}),\ dY_{t}=(alpha Y_{t},+eta)dt+ heta(t, Y_{t}, u_{t})dB_{t}, quad Y_{0}in L^{p}(mathbb{P}). end{cases}] If we make the convexity and monotony assumption (only) on $sigma$ and if $sigmaleq heta$ with respect to the partial matrix order, the convex order for the initial random variable $X_0 leq Y_0$ can be propagated to the whole path of process $X$ and $Y$. That is, if we consider a convex functional $F$ with polynomial growth defined on the path space, we have $mathbb{E}F(X)leqmathbb{E}F(Y)$; for a convex functional $G$ defined on the product space involving the path space and its marginal distribution space, we have $mathbb{E},Gig(X, (mu_t)_{tin[0, T]}ig)leq mathbb{E},Gig(Y, ( u_t)_{tin[0, T]}ig)$ under appropriate conditions. The symmetric setting is also valid, that is, if $ heta leq sigma$ and $Y_0 leq X_0$ with respect to the convex order, then $mathbb{E},F(Y) leq mathbb{E},F(X)$ and $mathbb{E},Gig(Y, ( u_t)_{tin[0, T]}ig)leq mathbb{E},G(X, (mu_t)_{tin[0, T]})$. The proof is based on several forward and backward dynamic programming and the convergence of the Euler scheme of the McKean-Vlasov equation.




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On the Boundary Harnack Principle in Holder domains. (arXiv:2005.03079v1 [math.AP])

We investigate the Boundary Harnack Principle in H"older domains of exponent $alpha>0$ by the analytical method developed in our previous work "A short proof of Boundary Harnack Principle".




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The growth rate over trees of any family of set defined by a monadic second order formula is semi-computable. (arXiv:2004.06508v3 [cs.DM] UPDATED)

Monadic second order logic can be used to express many classical notions of sets of vertices of a graph as for instance: dominating sets, induced matchings, perfect codes, independent sets or irredundant sets. Bounds on the number of sets of any such family of sets are interesting from a combinatorial point of view and have algorithmic applications. Many such bounds on different families of sets over different classes of graphs are already provided in the literature. In particular, Rote recently showed that the number of minimal dominating sets in trees of order $n$ is at most $95^{frac{n}{13}}$ and that this bound is asymptotically sharp up to a multiplicative constant. We build on his work to show that what he did for minimal dominating sets can be done for any family of sets definable by a monadic second order formula.

We first show that, for any monadic second order formula over graphs that characterizes a given kind of subset of its vertices, the maximal number of such sets in a tree can be expressed as the extit{growth rate of a bilinear system}. This mostly relies on well known links between monadic second order logic over trees and tree automata and basic tree automata manipulations. Then we show that this "growth rate" of a bilinear system can be approximated from above.We then use our implementation of this result to provide bounds on the number of independent dominating sets, total perfect dominating sets, induced matchings, maximal induced matchings, minimal perfect dominating sets, perfect codes and maximal irredundant sets on trees. We also solve a question from D. Y. Kang et al. regarding $r$-matchings and improve a bound from G'orska and Skupie'n on the number of maximal matchings on trees. Remark that this approach is easily generalizable to graphs of bounded tree width or clique width (or any similar class of graphs where tree automata are meaningful).




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Evolutionary Dynamics of Higher-Order Interactions. (arXiv:2001.10313v2 [physics.soc-ph] UPDATED)

We live and cooperate in networks. However, links in networks only allow for pairwise interactions, thus making the framework suitable for dyadic games, but not for games that are played in groups of more than two players. To remedy this, we introduce higher-order interactions, where a link can connect more than two individuals, and study their evolutionary dynamics. We first consider a public goods game on a uniform hypergraph, showing that it corresponds to the replicator dynamics in the well-mixed limit, and providing an exact theoretical foundation to study cooperation in networked groups. We also extend the analysis to heterogeneous hypergraphs that describe interactions of groups of different sizes and characterize the evolution of cooperation in such cases. Finally, we apply our new formulation to study the nature of group dynamics in real systems, showing how to extract the actual dependence of the synergy factor on the size of a group from real-world collaboration data in science and technology. Our work is a first step towards the implementation of new actions to boost cooperation in social groups.