Have you got yourself a Sony Xperia Z1 Compact but not sure how to do something on it? Don’t worry, we’ve come up with a comprehensive guide for all the things your handset is capable of. Navigate the various sections using the links below. If you can’t find what you’re looking for just leave a … Continue reading Sony Xperia Z1 Compact Complete Guide →

Got a brand new Motorola Moto X but not sure how to do something on it? Fear not as we’ve put together a comprehensive guide to get your started. Scroll through or navigate using the links below, and if you’ve got a query and we havne’t covered it, let us know. Leave us a comment … Continue reading Motorola Moto X complete guide →

Got a Motorola Moto G but not sure how to do something on it? Not to worry as we’ve come up with a comprehensive guide for all the things your handset is capable of doing. Navigate using the links below or download the full guide by clicking on the PDF logo. If you can’t find … Continue reading Motorola Moto G Complete Guide →

Scrapbooking can be a fun way to capture important moments in life and with our list of the Top 15 Scrapbooking Resources, you can start right away!

Do you know the difference between a mission and a vision? Or the difference between a purpose and a goal? Don’t worry, you’re not the only one. Let's clarify!

Fluid design of swirling dogs are captured by Moscow-based illustrator Marina Okhromenko in her colorful digital illustrations, she depicts expressions of joy that makes us adore more our canine...

Tags: coronavirus, Marcel Salathé, Nicky Case, simulation

Tags: coronavirus, FiveThirtyEight, modeling

“In conceptual art the idea or concept is the most important aspect of the work. When an artist uses a conceptual form of art, it means that all of the planning and decisions are made beforehand and the execution is a perfunctory affair. The idea becomes a machine that makes the art. This kind of art is not theoretical or illustrative of theories; it is intuitive, it is involved with all types of mental processes and it is purposeless. It is usually free from the dependence on the skill of the artist as a craftsman.”

- Artist Sol Lewitt on conceptual art.

We kick things off with Rob talking about his favorite albums of the year. We then discuss the shocking news...

The post METAL INJECTION LIVECAST #535 - Liddle' Ditch appeared first on Metal Injection.

Former host of MTV Headbangers Ball, Riki Rachtman, called into the show to share memories of Headbangers Ball, working at...

The post METAL INJECTION LIVECAST #538 – Bush Did Mayhem with Special Guest Riki Rachtman appeared first on Metal Injection.

If you’re a remote worker, you may have plenty of experience with video conferencing as a way to communicate with clients, team members, or other colleagues. But with millions of additional...

Click through to read the rest of the story on the Vandelay Design Blog.

The galaxy far far away has items both big and small. The Star Wars Size Comparison Video created by MetaBallStudios brings droids, people and planets together from the Star Wars movies (episode I to VIII, Rogue One and Solo). See how your favorites size up against each other.

Comparison of many things from the Star Wars movies. Only movies from episode I to VIII, Rogue One and Solo. Obviously not everything appears, only the most representative.

Providing scale and context to your audience is one of the key tenets of data visualization, and this video does a fantastic job of giving you the context of the size of everything in the Star Wars universe.

Found on Gizmodo.com.

Michiel Dullaert, data visualization expert and trainer from the Netherlands, has updated his Chart Guide poster to version 4! A free PDF is available for download from his website, and introduces a new category, 19 new charts and 4 extra design tips. You can also purchase a full-size printed poster version.

As the November 2019 Giveaway, I have a pair of Chart Guide posters, that will be shipped to one lucky winner. That way you get one for yourself, and one you can give to a friend or coworker.

Register HERE by November 30, 2019 at 11:59pm CT, and the winner will be randomly chosen on December 1st!

This poster shows 84 charts to choose from and includes 16 chart design tips to help you make the Perfect Chart. The poster is available as a big poster or you can download the PDF file for free. Let this ChartGuide poster help you choose and design your Perfect Chart.

You can see his complete write-up about the new version HERE. I was able to ask Michiel a few interview questions about developing the posters:

Cool Infographics: What’s your background and how did you get into visualizing data?

Michiel Dullaert: Years ago I have been working in the boardgame and puzzle industry. Part of my work was discovering new boardgames and puzzles and introduce them to the market. I was working for two different companies, both at the time that a new product of theirs really changed the market. For the boardgame industry I worked for the company that introduced a new type of boardgame (the game of Catan) that made playing boardgames a popular hobby. After that, I worked for a company that created puzzle magazines at the time the Sudoku puzzles was introduced. And here the same happened again, a new type of puzzle that changed the way people would puzzle and talk about puzzles. Both were very nice jobs, with a lot of enthusiastic conversations with customers about new products.

In both companies I was working in the product development. I always had a large personal interest in the data behind the products. So it felt logic to do more with data, and I changed careers. I started working for a large company as an analyst. And it was not long that I found out that my colleagues were not interested in my reports. Although the reports contained interesting information it was shown in large tables and busy charts. People seemed to be not interested and if the looked into the numbers, they did not seem to understand them. My work did not seem to matter. The contrast between my previous jobs and the work as an analyst could not have been bigger. At that time I decided I would try to find a way to make people as enthusiastic about data as they were about boardgames and Sudoku puzzles. 

The first step was reading books on the topic of data visualization. Because I was working in the business intelligence field, the most logic choice were the books of Stephen Few. I bought them all and a whole new world opened for me. When Few was in the Netherlands to give a course I felt very lucky I could join. The workshops inspired me to learn more on this topic. So I bought more books and the next year I joined a class of Alberto Caïro. This gave me multiple perspectives on the same topic. The things I learned were applied to my work, and I was getting more and more responses on my visualizations. People actually started to read and understand them. 

My manager asked me to explain my choices in visualizations to my colleagues, so they could learn from me. And then I discovered how great it is to teach about data visualisation. I met a couple of UX designers and they inspired me learn more about that topic and to get an UX certification. The knowledge I gained in learning UX helped me in developing my own perspective on good data visualization. And in my workshop I try to inspire others to create such. For these workshops I wanted an overview of charts. Although there were already some great overviews, none of them had the point of view I was teaching in class. So I decided to design my own. That’s how Chart.Guide started. 

Cool Infographics: Who is the Chart Guide poster intended for?

Michiel Dullaert: The website and the posters are intended for everyone who makes charts. For me it does not matter if you are working as a data-journalist or a data scientist, a infographic designer, project manager or a financial analyst. As long as you need help or inspiration when making charts or tables, Chart.Guide can help you. Online in the form of the website and offline in the form of the poster. Because I want to inspire as many people as possible I made the PDF of the poster free to download. I know that the poster is used in business departments, newsrooms and in school classrooms.

Cool Infographics: What was your design process for the poster?

Michiel Dullaert: The main source for updates to the poster or website, is the conversations I have with people I teach or work with. If they have a need for certain chart types, or make design mistakes, I try to add that topic. 

The first poster edition (picture DPG Chart Chooser) was just a collection of charts I created for my students. For each chart a few words on when to use the chart and, more important, it gave advice on what charts were not recommended. On the second edition (the first under the Chart.Guide brand) I added chart design tips.  The reason, I saw people choose a good chart but then mess up the design. Last year, I got questions about maps, so I decided to add them on poster edition 4. 

The design process starts with insight I get from conversations I am having. Next step is cutting the old poster and rearranging everything. (see picture ChartGuide rearrange) now, will lead to more insights on the poster in the future. Although it make take some time to transform everything to the screen or paper. I still need to find some time to explain on the website why some charts are “not recommended”. 

Cool Infographics: You asked your followers to help choose the design of the new poster. How did that go?

Michiel Dullaert: The poster is made to help people. So it seems to be logic to give them a role in the design process. As a UX designer I like to test my designs before releasing them. Most of these tests are done in class, because I like to observe the users in how they use the new design. The online voting was suggestion of a student. It did give me a lot of useful feedback. Especially when people wrote a lot of text explaining their choice. For future editions I will do the same.

Cool Infographics: How can people follow you for updates?

Michiel Dullaert: People who have downloaded the PDF will get an email when a new poster is available, or when something interesting is added to the website. For this and more chart related inspiration, they can follow me on Twitter: @Chart_Guide or on facebook: /ChartGuide1.

This helpful reference guide is one of over 25 FREE data visualization guides I maintain links to in the Cool Infographics Tools pages. See them all on the DataViz Reference Guides page, and let me know if I’m missing any.

Visual explanations are a big part of data visualizations, and this video exploration of What’s Inside the White House? by animator Jared Owen gives viewers a great perspective of where the major rooms are located in context with the rest of the building. I would bet that most people don’t know that the Oval Office isn’t in the main, center building.

The White House is full of lots of interesting rooms. A lot of people don't realize that this information is public! Please join me as we take a walk through the different rooms and what they are used for.

Found on Core77

Made withVisme Infographic Maker

Get To Know COVID-19 is an interactive infographic build on the Visme platform that allows for the inclusion of animation, URL links, interactive content and playable videos.

Of course it’s timely information, but this is also an experiment with embedding the fully interactive infographic here in the blog post. A designer can go overboard, but good use of animation can attract the reader’s attention to important information or better demonstrate data. Below is the static JPG image of the infographic.

I am disappointed that the data included in the infographic isn’t visualized. It’s just shown as text numbers. That doesn’t give the reader any context or visual cues on how to perceive those data values.

What is Coronavirus/COVID-19?

According to the World Health Organization (WHO), COVID-19 is a respiratory disease caused by a newly discovered type of coronavirus.

This new strain of virus, also known as SARS-CoV-2, has not been previously identified in humans. It can be transmitted from person to person via respiratory droplets, such as when an infected person coughs or sneezes within 6 feet of contact.

The WHO has declared the virus as a global pandemic and a crisis unlike any other in the 75-year history of the UN.

Not an infographic today.

Free online classes, discounts on software, extended trial periods, free online data sources, etc. as a result of the COVID-19 pandemic.

As the Organizer for the DFW Data Visualization Meetup Group, I've started this publicly viewable Google Sheet for the local DataViz community listing various resources that companies are making available during the pandemic. Turns out, these are valuable to DataViz designers everywhere, not just DFW, so I'm sharing the link with all of you.

I’ll continue to update this list as I learn about new resources during the pandemic. Please use the submission link in the spreadsheet if you know of any DataViz-related offers or deals I should add!

-Randy

We’re all working from home, and that include job interviews, news interviews, class lectures, webinars, presentations to customers and even just business meetings. The 10 Things to Do Before Any Video Interview infographic from Kickresume is a great last-minute checklist before you turn on your webcam!

In the end, you can take this infographic as a checklist. You can use it to prepare for your job interview or any other video conference call.

And, oh boy, are we going to make many more of those. Sure, it took a global pandemic for companies to recognize the value of working from home but now there’s no going back. Video conference calls are here to stay. (I personally hate it but even I should probably get used to it. Damn.)

Anyway, good luck at your job interview!

I would have preferred more visual elements, but I like that this is a tightly focused infographic with a clear, useful message to a broad audience. This is one of the best uses for an infographic: an informative topic, related to the industry of the publishing company, with a popular, trending topic. This design checks all the boxes.

Designers have to remember that the infographic image file will often be shared by itself, so it always helps to include a few more thins in the footer:

• The Infographic Landing Page URL (not just the company home page). This will help readers find the full infographic and the article that went along with it. Don’t make people search for it on your website.

• A copyright or Creative Commons statement is always a good idea when you publishing an infographic

COVID-19 (aka Coronavirus) has obviously been a hot topic recently, especially within the media. But how dangerous is this new virus?

The Covid-19 #Coronavirus Infographic Data Pack on Information is Beautiful gathers the current data around the world (version above is from March 31, 2020) and makes the virus more tangible to understand. The infographic makes comparisons to other diseases when it comes to incubation times and number of deaths, as well as reporting who is dying from it.

Created by David McCandless, Omid Kashan, Fabio Bergamaschi, Dr Stephanie Starling, Univers Labs

From Information Is Beautiful:

We made an infographic of the best COVID-19 / Coronavirus charts floating around, plus some of our own – all with the latest data

We’ll plan to keep it updated every few days.

They have also made all of their data accessible with a Google Sheet link: bit.ly/COVID19-DATA

With so many good and bad COVID-19 charts being published at a frantic pace, I can appreciate the design and effort here to gather some of the best data and the best visualizations together in one place.

Center for Biological Diversity Press Release WASHINGTON – Four commonly used neonicotinoid pesticides can harm bees and other pollinators, according to a new analysis by California’s Department of Pesticide Regulation. The study found that current approved uses of the “neonics” … Continue reading →

Andrew Rickmann posted a photo:

The Grand Bridge at Blenheim Palace

We're familiar with awarding prizes for excellence, from the Oscars to The International Design Awards. But what if we started giving prizes to shame bad examples of design? Enter the Procrustes Awards.

Whether you call it a field visit, a contextual inquiry or a customer discovery interview, the goal of early stage research is the same: to uncover users' needs. Here are 5 mistakes I've seen crop up time and again in this kind of research.

NATGEO KIDS Branding Redesign Proposal

Intercellar - Accidental Anomalies of Particle Wallpapers

Branding and Visual Identity for Potency Design

David Wolf
Oranges and Stones, , 2012
Website - DavidWolfPhotographs.com

David Wolf is a devoted film photographer, making both color and black and white prints by hand in the traditional darkroom. His work has been exhibited internationally at such venues as Aperture, The Griffin Museum of Photography, the Photographic Center Northwest, the Lishui International Photography Festival in China, and the Salon de la Photo during Paris Photo. David’s photographs have been acquired by a variety of private and institutional collections, including the Bibliotheque nationale de France, Paris; the Prentice and Paul Sack Photographic Trust of the Museum of Modern Art, San Francisco; the Santa Barbara Museum of Art; and the deCordova Sculpture Park and Museum, Lincoln, MA. He recently won top honors in both the International Photography Awards and the Grand Prix de la Decouverte, International Fine Art Photography Competition. His work has appeared in such publications as Harper’s, aCurator, and Fraction Magazine. A Boston native and Brown University graduate, David now calls San Francisco home, where his work is represented by Corden|Potts Gallery.

Abelardo Morell
Camera Obscura: Early Morning View of the East Side of Midtown Manhattan, , 2014
Website - AbelardoMorell.net

Abelardo Morell was born in Havana, Cuba in 1948. He immigrated to the United States with his parents in 1962. Morell received his undergraduate degree in 1977 from Bowdoin College and an MFA from The Yale University School of Art in 1981. In 1997 he received an honorary degree from Bowdoin College.

His publications include a photographic illustration of Alice’s Adventures in Wonderland (1998) by Dutton Children’s Books, A Camera in a Room (1995) by Smithsonian Press, A Book of Books (2002) and Camera Obscura (2004) by Bulfinch Press and Abelardo Morell (2005), published by Phaidon Press. Recent publications include a limited edition book by The Museum of Modern Art in New York of his Cliché Verre images with a text by Oliver Sacks.

His work has been collected and shown in many galleries, institutions and museums, including the Museum of Modern Art, The Whitney Museum of American Art, the Metropolitan Art Museum in New York, The Chicago Art Institute, The San Francisco Museum of Modern Art, The Houston Museum of Art, The Boston Museum of Fine Art, The Victoria & Albert Museum and over seventy other museums in the United States and abroad. A retrospective of his work organized jointly by the Art Institute of Chicago, The Getty in Los Angeles and The High Museum in Atlanta closed in May 2014 after a year of travel. Abelardo will be having his first show at the Edwynn Houk Gallery in New York opening October 23, 2014 and will run until December 20, 2014 featuring a selection of new pictures.

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.

A nearly two-minute, profanity-laced tirade at a code officer at a Miami Beach grocery store is the latest example of mounting tensions in the US over wearing masks to stem the spread of the coronavirus.

The notoriously independent-minded federal judge who once said he was disgusted by the conduct of Michael Flynn could block the administration's bid to drop criminal charges against the former adviser to President Donald Trump, legal experts said.

A couple of mysterious sharks have caught the fancy of the town. Maybe it's the cabin fever finally setting in, or perhaps this is what happens when you go too long without washing your mask, but Bethelites are going wild for two people in inflatable shark suits who pop up randomly around town.

Roy Horn, famed tiger handler and co-star of the magic duo known as Siegfried and Roy, died of complications from the coronavirus in a hospital in Las Vegas on Friday. He was 75 years old. "Today, the world has lost one of the greats of magic, but I have lost my best friend," Siegfried Fischbacher said in a statement. "From the moment we met, I knew Roy and I, together, would change the world." "There could be no Siegfried without Roy, and no Roy without Siegfried." This is a developing story. Please check back for updates.

Chris Guillebeau has traveled to 193 countries. And just to be clear, that is all of the countries recognized on the planet. He is the first person to do it before the age of 35. More importantly, he has built online businesses, side hustles, and mastered the art of a non-conforming lifestyle since he was 19 years old. There’s almost nobody better person equipped to talk about starting lots of businesses. He has a daily podcast called Side Hustle School where he’s featured more than 850 different side hustle businesses + featured many in his new book called 100 Side Hustles. Chris also started half a dozen or more himself, started one of my favorite conferences, The World Domination Summit, and is a New York Times bestselling author of books like the $100 Start Up and The Art of Non-Conformity and many others. This guy is a beast and he’s so savvy, so humble. In this episode: We go into details about some of Chris’ favorite side hustle businesses he’s come across in his podcast & writing this book – what are some of the most common traits and failures. Chris shares his experience with depression, how he’s faced it, […]

The post Adaptation, Self-Awareness and Art of the Side Hustle with Chris Guillebeau appeared first on Chase Jarvis Photography.

Ryan Holiday is described by the New York Times as popularizing stoicism, a philosophy of personal ethics which has been practiced by Kings, presidents, artists, writers, and entrepreneurs. His career started at 19 when he dropped out of college at 19 to work with author Robert Greene. Today, he’s a NYT Bestselling author, with 9 books under his belt, including his latest book: Stillness Is the Key which hit #1 on its first week. In this episode: Stillness isn’t a monk-like existence only reserved for the enlightened. Stillness is the idea of being still in a chaotic world and where our best work will come from. Ryan’s personal habits and process during the creation process to find stillness and it doesn’t include meditation. How to say no and build a practice around managing your time. Enjoy! FOLLOW RYAN: instagram | twitter | website Listen to the Podcast Subscribe   Watch the Episode  This podcast is brought to you by CreativeLive. CreativeLive is the world’s largest hub for online creative education in photo/video, art/design, music/audio, craft/maker, money/life and the ability to make a living in any of those disciplines. They are high quality, highly curated classes taught by the world’s top […]

The post Finding Stillness in a Fast Paced World with Ryan Holiday appeared first on Chase Jarvis Photography.

In this episode I’m chatting with my long time friend and financial guru, Ramit Sethi. Ramit has been on the show a number of times, and this time we’re connecting virtually from our living rooms during the quarantine. Of course we get into finances during these uncertain times, but more importantly: adaptation and resilience. Over the years, no one has single-handedly given me better insight about the business side of art than the New York Times bestselling author, Ramit Sethi. Take a listen and let us know what you think. Enjoy! This episode was part of CreativeLive TV, a brand-new, free, 24/7 variety show, live-streamed from the very casual living rooms, studios, and kitchen tables of our worldwide community of legendary creators. You can expect musical performances, Q&As, cooking, spoken word, drawing, and more – featuring many of our favorite personalities – all in a safe, virtual space full of joy, shared experiences, and connection via live, interactive chat. The schedule and upcoming broadcasts can be seen at http://creativelive.com/tv FOLLOW RAMIT: instagram | twitter | website Listen to the Podcast  Subscribe   Watch the Episode This podcast is brought to you by CreativeLive. CreativeLive is the world’s largest hub […]

The post Finance Fireside Chat with Ramit Sethi appeared first on Chase Jarvis Photography.

What would happen if the logos of famous brands suddenly wake up in the bed of another? Thats what the new tumblr blog Logo Mashups explores. It makes us think in the in the connections they share and how they are constantly appealing to our consumer mind through the commons grounds of symbology and typography.

Increases time on page and boosts engagement with your site Thanks to the ever-increasing internet speeds, videos are in high demand. Right now, video is everywhere on social media, websites, and apps. We are watching them on all our screens, desktops, tablets, phones and smart TVs. It is expected a growth in video content up …

Wix Video — a great marketing tool for any website. Read More »

About six years ago, a colleague I’ll call Tom, because that’s his name, forwarded me a link to the ‘WASD CODE’; a keyboard focused on the needs of programmers, designed with the help of Stack Overflow’s Jeff Atwood. I had no idea at the time that there were people actually dedicating themselves to creating keyboards beyond the stock fare shipping with computers. As I read and re-read the blurb, I was smitten.

DJI has announced their new Matrice 300 RTK “flying platform” (big drone) and the Zenmuse H20 hybrid camera series, to provide “a safer and smarter solution” to their enterprise customers. The M300 RTK, DJI says, is their first to integrate modern aviation features, advanced AI, 6-direction sensing and positioning, a UAV health management system and […]

The post DJI’s new Matrice 300 RTK drone offers a ridiculous 55-minutes of flight time and 2.7kg payload appeared first on DIY Photography.

Photography Life has just contributed to the selection of online courses that you can take for free. While their premim courses are normally paid $150 per course, you can now access them free of charge. The founders have released them on YouTube, available for everyone to watch. The Photography Life team came to the decision […]

The post Photography Life makes all their paid premium courses free appeared first on DIY Photography.

With the coronavirus pandemic, many folks switched to working online. Things like teaching, business meetings and other face-to-face activities have been replaced with video calls. Home has become both home and workplace, and admit it: your wardrobe totally reflects this. Creative duo The Workmans shows this “fashion crossover” in their latest photo series #COVIDwear. The […]

The post #COVIDwear: a hilarious photo series showing quarantine fashion of remote workers appeared first on DIY Photography.

How we read pie charts is still an open question: is it angle? Is it area? Is it arc length? In a study I'm presenting as a short paper at the IEEE VIS conference in Vancouver next week, I tried to tease the visual cues apart – using modeling and 3D pie charts. The big […]

We introduce the conormal fan of a matroid M, which is a Lagrangian analog of the Bergman fan of M. We use the conormal fan to give a Lagrangian interpretation of the Chern-Schwartz-MacPherson cycle of M. This allows us to express the h-vector of the broken circuit complex of M in terms of the intersection theory of the conormal fan of M. We also develop general tools for tropical Hodge theory to prove that the conormal fan satisfies Poincar'e duality, the hard Lefschetz theorem, and the Hodge-Riemann relations. The Lagrangian interpretation of the Chern-Schwartz-MacPherson cycle of M, when combined with the Hodge-Riemann relations for the conormal fan of M, implies Brylawski's and Dawson's conjectures that the h-vectors of the broken circuit complex and the independence complex of M are log-concave sequences.

Let $1 le r < n$ be integers. We give a proof that the group $mathop{mathrm{Aut}}({X_{n}^{mathbb{N}}, sigma_{n}})$ of automorphisms of the one-sided shift on $n$ letters embeds naturally as a subgroup $mathcal{h}_{n}$ of the outer automorphism group $mathop{mathrm{Out}}(G_{n,r})$ of the Higman-Thompson group $G_{n,r}$. From this, we can represent the elements of $mathop{mathrm{Aut}}({X_{n}^{mathbb{N}}, sigma_{n}})$ by finite state non-initial transducers admitting a very strong synchronizing condition.

Let $H in mathcal{H}_{n}$ and write $|H|$ for the number of states of the minimal transducer representing $H$. We show that $H$ can be written as a product of at most $|H|$ torsion elements. This result strengthens a similar result of Boyle, Franks and Kitchens, where the decomposition involves more complex torsion elements and also does not support practical extit{a priori} estimates of the length of the resulting product.

We also give new proofs of some known results about $mathop{mathrm{Aut}}({X_{n}^{mathbb{N}}, sigma_{n}})$.

This paper addresses the problem of identifying the graph structure of a dynamical network using measured input/output data. This problem is known as topology identification and has received considerable attention in recent literature. Most existing literature focuses on topology identification for networks with node dynamics modeled by single integrators or single-input single-output (SISO) systems. The goal of the current paper is to identify the topology of a more general class of heterogeneous networks, in which the dynamics of the nodes are modeled by general (possibly distinct) linear systems. Our two main contributions are the following. First, we establish conditions for topological identifiability, i.e., conditions under which the network topology can be uniquely reconstructed from measured data. We also specialize our results to homogeneous networks of SISO systems and we will see that such networks have quite particular identifiability properties. Secondly, we develop a topology identification method that reconstructs the network topology from input/output data. The solution of a generalized Sylvester equation will play an important role in our identification scheme.

In this paper we consider the "quasidensity" of a subset of the product of a Banach space and its dual, and give a connection between quasidense sets and sets of "type (NI)". We discuss "coincidence sets" of certain convex functions and prove two sum theorems for coincidence sets. We obtain new results on the Fitzpatrick extension of a closed quasidense monotone multifunction. The analysis in this paper is self-contained, and independent of previous work on "Banach SN spaces". This version differs from the previous version because it is shown that the (well known) equivalence of quasidensity and "type (NI)" for maximally monotone sets is not true without the monotonicity assumption and that the appendix has been moved to the end of Section 10, where it rightfully belongs.

A reaction-diffusion model was developed describing the spread of the COVID-19 virus considering the mean daily movement of susceptible, exposed and asymptomatic individuals. The model was calibrated using data on the confirmed infection and death from France as well as their initial spatial distribution. First, the system of partial differential equations is studied, then the basic reproduction number, R0 is derived. Second, numerical simulations, based on a combination of level-set and finite differences, shown the spatial spread of COVID-19 from March 16 to June 16. Finally, scenarios of unlockdown are compared according to variation of distancing, or partially spatial lockdown.