ert

AHA Media Alert: COVID-19 prompts questions on increased risk for those with CVD and stroke survivors

AHA COVID-19 newsroom   DALLAS, April 3, 2020 — COVID-19 is prompting widespread questions and concerns about the heightened risk for those with heart disease and stroke survivors.   The American Heart Association, the world’s leading nonprofit...




ert

Maternal hypertensive disorders may lead to mental health disorders in children

Research Highlights: Hypertensive pregnancy disorders, especially preeclampsia – may increase the risk of psychological development disorders and behavioral and emotional disorders in children. This is the first study to show that preeclampsia...




ert

Alerta de medios de la AHA: El COVID-19 genera preguntas sobre un mayor riesgo para las personas con ECV y los sobrevivientes de accidentes cerebrovasculares

Sala de prensa sobre el COVID-19 de la AHA DALLAS, 3 de abril del 2020 – El COVID-19 está generando preguntas y preocupaciones generalizadas sobre el mayor riesgo que implica para aquellos con cardiopatías y sobrevivientes de accidentes...




ert

Directores ejecutivos de salud pública: Inscripciones abiertas para el cuidado de la salud a fin de salvar vidas

Sala de prensa de la AHA sobre el COVID-19 DALLAS, 10 de abril del 2020 – Nancy Brown, directora ejecutiva de la American Heart Association, la organización voluntaria líder mundial centrada en la salud del corazón y del cerebro, se reunió con los...




ert

Más pasos por día se relaciona con reducciones significativas de la diabetes y la hipertensión arterial

Puntos destacados de la investigación: Los adultos de mediana edad que caminaron una mayor cantidad de pasos al día mostraron un 43% menos de riesgo de padecer diabetes y un 31% menos de riesgo de hipertensión arterial, en comparación con personas de...




ert

Coronavirus Alert! Precautionary Measures & Real-time Apps To Keep An Eye On Covid-19 Outbreak Situation

Why asking Help from Allah is the ‘First Thing First’? As everything is in this universe has made by Allah, Almighty. He is the only One who has power over all. So, we should always ask help from the Almighty first to keep us away from these...

The post Coronavirus Alert! Precautionary Measures & Real-time Apps To Keep An Eye On Covid-19 Outbreak Situation appeared first on SmashingApps.com.




ert

Cedar Rapids RoughRiders, USHL conduct annual drafts despite uncertain times

CEDAR RAPIDS — The United States Hockey League conducts its annual drafts Monday and Tuesday. It’s a 3 p.m. start for Monday’s Phase I draft of players with a 2004 birth date....



  • Minor League Sports



ert

Albert "Bert" Meister

MANCHESTER
Albert "Bert" Meister, 56, died Wednesday, May 6, 2020. Leonard-Muller Funeral Home, Manchester.




ert

Kenneth Robert Martin

KENNETH ROBERT MARTIN
Iowa City

Kenneth Robert Martin, our loving father and mentor, paddled off from the dock for the last time on May 8, 2020, joining Raymond and Inez, his parents, brother, Arnold, and dear wife, Alice on the big lake.
He leaves behind many stories of a life well-lived that will be retold in our family for generations. Among them: Just after World War II, he was stationed in Guam as an Army Air Corps staff sergeant, where he adopted a stray dog. Unwilling to abandon the pup after the tour was over, he smuggled him aboard ship in a duffle bag, which was discovered by brass before reaching Hawaii. Though denial of on-shore leave in Honolulu was the consequence, dad didn't forsake the dog, and after the pair crossed the ocean together they lived happily in Gary, Ind., for many years. Such is the compassion, devotion and fortitude (and mischievousness!) Ken would demonstrate over and over in his life. While we will miss his warmth and humor terribly, his legacy is plain to see in his children, grandchildren and great-grandchildren. We are nature lovers as Ken was. We turn over rocks just to see what lies beneath as he taught. We gaze at the stars with the same awe and wonder he showed us. We bless him for these gifts, which will never be forgotten.
To share a thought, memory or condolence with his family, please visit the funeral home website at www.gayandciha.com.




ert

Karen K. Siechert

KAREN K. SIECHERT
Marion

Karen K. Siechert, 80, of Marion, died Friday, May 8, 2020, at the Mercy Hospice House in Hiawatha. Private services will be on Monday at the Cedar Memorial Park Chapel of Memories. Entombment in Cedar Memorial Park Cemetery.
Survivors include two daughters, Tamara (Michael) Fensterman of Cedar Rapids and Kimberly (Michael) Katalinich of Hiawatha; and two grandchildren, Stephanie (Jake) Tjepkes and Rachel Fensterman.
She was preceded in death by her husband and parents.
Karen was born April 10, 1940, in Marshalltown, the daughter of Fred and Alice (Nekola) Saver. She married Carl W. Siechert on Sept. 23, 1961, in Cedar Rapids. Carl passed away in 2018.
Karen was a cook at AEGON and retired from there after many years of service. She enjoyed hosting both family and friends and everyone delighted in her cooking and fabulous baked goods. Karen was a wonderful wife, mother and grandmother whose memory will be cherished by all who knew and loved her.
Memorial donations may be given to the Parkinson's Foundation. Please leave a message or tribute to Karen's family on our web page, www.cedarmemorial.com under obituaries.




ert

Margy E. Seifert

MARGY E. SEIFERT
Homestead


Margy E. Seifert, 90, of Homestead, passed away Thursday, May 7, 2020, at Wesley Acres in Des Moines. A private graveside service will be held Monday May 11, at Homestead Cemetery in Homestead, with Pastor Lisa Crow officiating. Memorials may be contributed to the Safe Haven of Iowa County. Kloster Funeral Home in Marengo is assisting the family with arrangements.
She is survived by her children, Randy Seifert of Marion, Timothy Seifert (Rodi) of Chicago and Karen Seifert (Melodie) of Urbandale; a granddaughter, Angelique Kramer (Tim) of Cedar Rapids; two great-grandchildren, Mya and Noah Hummel; siblings, Helen Zimpleman of Marengo, Roy Gerard of North Chesterfield, Va., Lorrin Gerard (Carol) of Nevada and Evan Gerard (Judy) of Campbell, Calif.; along with many nieces and nephews.
She was preceded in death by her parents, and husband, Henry, in 2009.
Margy Elaine Gerard was born March 30, 1930, in Millersburg, Iowa, the daughter of Glen and Leona Charlotte Jones Gerard. She graduated from the Marengo High School in 1948, where she was a member of the Honor Society. Margy and Henry were united in marriage June 27, 1948, at First United Methodist Church in Marengo. Margy worked as a dental assistant for Dr. Louis Clemens for many years, and then as a hostess at Zuber's Restaurant in Homestead. She was a member of the First United Methodist Church in Marengo for more than 70 years, a member of the Eastern Star, the Homestead Welfare Club and the Amana Heritage Society. Margy enjoyed bird watching and was an avid Chicago Cubs fan. She was a recipe queen, always trying out a new recipe on Henry. She enjoyed spending time with her family and her beloved cat, Spice.
Online condolences: www.klosterfuneralhome.com.




ert

Step by step guide to convert html template to WordPress theme

Before 20 years, the websites are developed with text and static HTML only. But as technology is growing we have lots of new ways to create any complex to a simple website. There are so many options available to develop a user-friendly website.




ert

How to Set Up Free SSL with Let’s Encrypt and Certbot

Installing an SSL certificate on your domain is an essential step you should take to secure your WordPress site and now with Let’s Encrypt you can get one for free.




ert

Audio Manipulations and Dynamic Ad Insertion with the Auphonic API

We are pleased to announce a new Audio Inserts feature in the Auphonic API: audio inserts are separate audio files (like intros/outros), which will be inserted into your production at a defined offset.
This blog post shows how one can use this feature for Dynamic Ad Insertion and discusses other Audio Manipulation Methods of the Auphonic API.

API-only Feature

For the general podcasting hobbyist, or even for someone producing a regular podcast, the features that are accessible via our web interface are more than sufficient.

However, some of our users, like podcasting companies who integrate our services as part of their products, asked us for dynamic ad insertions. We teamed up with them to develop a way of making this work within the Auphonic API.

We are pleased therefore to announce audio inserts - a new feature that has been made part of our API. This feature is not available through the web interface though, it requires the use of our API.

Before we talk about audio inserts, let's talk about what you need to know about dynamic ad insertion!

Dynamic Ad Insertion

There are two ways of dealing with adverts within podcasts. In the first, adverts are recorded or edited into the podcast and are fixed, or baked in. The second method is to use dynamic insertion, whereby the adverts are not part of the podcast recording/file but can be inserted into the podcast afterwards, at any time.

This second approach would allow you to run new ad campaigns across your entire catalog of shows. As a podcaster this allows you to potentially generate new revenue from your old content.

As a hosting company, dynamic ad insertion allows you to choose up to date and relevant adverts across all the podcasts you host. You can make these adverts relevant by subject or location, for instance.

Your users can define the time for the ads and their podcast episode, you are then in control of the adverts you insert.

Audio Inserts in Auphonic

Whichever approach to adverts you are taking, using audio inserts can help you.

Audio inserts are separate audio files which will be inserted into your main single or multitrack production at your defined offset (in seconds).

When a separate audio file is inserted as part of your production, it creates a gap in the podcast audio file, shifting the audio back by the length of the insert. Helpfully, chapters and other time-based information like transcriptions are also shifted back when an insert is used.

The biggest advantage of this is that Auphonic will apply loudness normalization to the audio insert so, from an audio point of view, it matches the rest of the podcast.

Although created with dynamic ad insertion in mind, this feature can be used for any type of audio inserts: adverts, music songs, individual parts of a recording, etc. In the case of baked-in adverts, you could upload your already processed advert audio as an insert, without having to edit it into your podcast recording using a separate audio editing application.

Please note that audio inserts should already be edited and processed before using them in production. (This is usually the case with pre-recorded adverts anyway). The only algorithm that Auphonic applies to an audio insert is loudness normalization in order to match the loudness of the entire production. Auphonic does not add any other processing (i.e. no leveling, noise reduction etc).

Audio Inserts Coding Example

Here is a brief overview of how to use our API for audio inserts. Be warned, this section is coding heavy, so if this isn't your thing, feel free to move along to the next section!

You can add audio insert files with a call to https://auphonic.com/api/production/{uuid}/multi_input_files.json, where uuid is the UUID of your production.
Here is an example with two audio inserts from an https URL. The offset/position in the main audio file must be given in seconds:

curl -X POST -H "Content-Type: application/json" 
    https://auphonic.com/api/production/{uuid}/multi_input_files.json 
    -u username:password 
    -d '[
            {
                "input_file": "https://mydomain.com/my_audio_insert_1.wav",
                "type": "insert",
                "offset": 20.5
            },
            {
                "input_file": "https://mydomain.com/my_audio_insert_2.wav",
                "type": "insert",
                "offset": 120.3
            }
        ]'

More details showing how to use audio inserts in our API can be seen here.

Additional API Audio Manipulations

In addition to audio inserts, using the Auphonic API offers a number of other audio manipulation options, which are not available via the web interface:

Cut start/end of audio files: See Docs
In Single-track productions, this feature allows the user to cut the start and/or the end of the uploaded audio file. Crucially, time-based information such as chapters etc. will be shifted accordingly.
Fade In/Out time of audio files: See Docs
This allows you to set the fade in/out time (in ms) at the start/end of output files. The default fade time is 100ms, but values can be set between 0ms and 5000ms.
This feature is also available in our Auphonic Leveler Desktop App.
Adding intro and outro: See Docs
Automatically add intros and outros to your main audio input file, as it is also available in our web interface.
Add multiple intros or outros: See Docs
Using our API, you can also add multiple intros or outros to a production. These intros or outros are played in series.
Overlapping intros/outros: See Docs
This feature allows intros/outros to overlap either the main audio or the following/previous intros/outros.

Conclusion

If you haven't explored our API already, the new audio inserts feature allows for greater flexibility and also dynamic ad insertion.
If you offer online services to podcasters, the Auphonic API would also then allow you to pass on Auphonic's audio processing algorithms to your customers.

If this is of interest to you or you have any new feature suggestions that you feel could benefit your company, please get in touch. We are always happy to extend the functionality of our products!







ert

Horizontal or/and Vertical Format in Kayak Photography

Like most paddlers I have a tendency to shoot pictures in a horizontal (landscape) format. It is more tricky to shoot in a vertical format from my tippy kayaks, especially, when I have to use a paddle to stabilize my camera.




ert

Pursuing A Professional Certification In Scrum

Professional certifications have become increasingly popular in this age of career switchers and the freelance gig economy. A certification can be a useful way to advance your skill set quickly or make your resume stand out, which can be especially important for those trying to break into a new industry or attract business while self-employed. Whatever your reason may be for pursuing a professional certificate, there is one question only you can answer for yourself: is it worth it?

Finding first-hand experiences from professionals with similar career goals and passions was the most helpful research I used to answer that question for myself. So, here’s mine; why I decided to get Scrum certified, how I evaluated my options, and if it was really worth it.

A shift in mindset

My background originates in brand strategy where it’s typical for work to follow a predictable order, each step informing the next. This made linear techniques like water-fall timelines, completing one phase of work in its entirety before moving onto the next, and documenting granular tasks weeks in advance helpful and easy to implement. When I made the move to more digitally focused work, tasks followed a much looser set of ‘typical’ milestones. While the general outline remained the same (strategy, design, development, launch) there was a lot more overlap with how tasks informed each other, and would keep informing and re-informing as an iterative workflow would encourage.

Trying to fit a very fluid process into my very stiff linear approach to project planning didn’t work so well. I didn’t have the right strategies to manage risks in a productive way without feeling like the whole project was off track; with the habit of account for granular details all the time, I struggled to lean on others to help define what we should work on and when, and being okay if that changed once, or twice, or three times. Everything I learned about the process of product development came from learning on the job and making a ton of mistakes—and I knew I wanted to get better.

Photo by Christin Hume on Unsplash

I was fortunate enough to work with a group of developers who were looking to make a change, too. Being ‘agile’-enthusiasts, this group of developers were desperately looking for ways to infuse our approach to product work with agile-minded principles (the broad definition of ‘agile’ comes from ‘The Agile Manifesto’, which has influenced frameworks for organizing people and information, often applied in product development). This not only applied to how I worked with them, but how they worked with each other, and the way we all onboarded clients to these new expectations. This was a huge eye opener to me. Soon enough, I started applying these agile strategies to my day-to-day— running stand-ups, setting up backlogs, and reorganizing the way I thought about work output. It’s from this experience that I decided it may be worth learning these principles more formally.

The choice to get certified

There is a lot of literature out there about agile methodologies and a lot to be learned from casual research. This benefitted me for a while until I started to work on more complicated projects, or projects with more ambitious feature requests. My decision to ultimately pursue a formal agile certification really came down to three things:

  1. An increased use of agile methods across my team. Within my day-to-day I would encounter more team members who were familiar with these tactics and wanted to use them to structure the projects they worked on.
  2. The need for a clear definition of what processes to follow. I needed to grasp a real understanding of how to implement agile processes and stay consistent with using them to be an effective champion of these principles.
  3. Being able to diversify my experience. Finding ways to differentiate my resume from others with similar experience would be an added benefit to getting a certification. If nothing else, it would demonstrate that I’m curious-minded and proactive about my career.

To achieve these things, I gravitated towards a more foundational education in a specific agile-methodology. This made Scrum the most logical choice given it’s the basis for many of the agile strategies out there and its dominance in the field.

Evaluating all the options

For Scrum education and certification, there are really two major players to consider.

  1. Scrum Alliance - Probably the most well known Scrum organization is Scrum Alliance. They are a highly recognizable organization that does a lot to further the broader understanding of Scrum as a practice.
  2. Scrum.org - Led by the original co-founder of Scrum, Ken Schwaber, Scrum.org is well-respected and touted for its authority in the industry.

Each has their own approach to teaching and awarding certifications as well as differences in price point and course style that are important to be aware of.

SCRUM ALLIANCE

Pros

  • Strong name recognition and leaders in the Scrum field
  • Offers both in-person and online courses
  • Hosts in-person events, webinars, and global conferences
  • Provides robust amounts of educational resources for its members
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Members are required to keep their skills up to date by earning educational credits throughout the year to retain their certification
  • Consistent information across all course administrators ensuring you'll be set up to succeed when taking your certification test.

Cons

  • High cost creates a significant barrier to entry (we’re talking in the thousands of dollars here)
  • Courses are required to take the certification test
  • Certification expires after two years, requiring additional investment in time and/or money to retain credentials
  • Difficult to find sample course material ahead of committing to a course
  • Courses are several days long which may mean taking time away from a day job to complete them

SCRUM.ORG

Pros

  • Strong clout due to its founder, Ken Schwaber, who is the originator of Scrum
  • Offers in-person classes and self-paced options
  • Hosts in-person events and meetups around the world
  • Provides free resources and materials to the public, including practice tests
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Minimum score on certification test required to pass; certification lasts for life
  • Lower cost for certification when compared to peers

Cons

  • Much lesser known to the general public, as compared to its counterpart
  • Less sophisticated educational resources (mostly confined to PDFs or online forums) making digesting the material challenging
  • Practice tests are slightly out of date making them less effective as a study tool
  • Self-paced education is not structured and therefore can’t ensure you’re learning everything you need to know for the test
  • Lack of active and engaging community will leave something to be desired

Before coming to a decision, it was helpful to me to weigh these pros and cons against a set of criteria. Here’s a helpful scorecard I used to compare the two institutions.

Scrum Alliance Scrum.org
Affordability ⚪⚪⚪
Rigor⚪⚪⚪⚪⚪
Reputation⚪⚪⚪⚪⚪
Recognition⚪⚪⚪
Community⚪⚪⚪
Access⚪⚪⚪⚪⚪
Flexibility⚪⚪⚪
Specialization⚪⚪⚪⚪⚪⚪
Requirements⚪⚪⚪
Longevity⚪⚪⚪

For me, the four areas that were most important to me were:

  • Affordability - I’d be self-funding this certificate so the investment of cost would need to be manageable.
  • Self-paced - Not having a lot of time to devote in one sitting, the ability to chip away at coursework was appealing to me.
  • Reputation - Having a certificate backed by a well-respected institution was important to me if I was going to put in the time to achieve this credential.
  • Access - Because I wanted to be a champion for this framework for others in my organization, having access to resources and materials would help me do that more effectively.

Ultimately, I decided upon a Professional Scrum Master certification from Scrum.org! The price and flexibility of learning course content were most important to me. I found a ton of free materials on Scrum.org that I could study myself and their practice tests gave me a good idea of how well I was progressing before I committed to the cost of actually taking the test. And, the pedigree of certification felt comparable to that of Scrum Alliance, especially considering that the founder of Scrum himself ran the organization.

Putting a certificate to good use

I don’t work in a formal Agile company, and not everyone I work with knows the ins and outs of Scrum. I didn’t use my certification to leverage a career change or new job title. So after all that time, money, and energy, was it worth it?

I think so. I feel like I use my certification every day and employ many of the principles of Scrum in my day-to-day management of projects and people.

  • Self-organizing teams is really important when fostering trust and collaboration among project members. This means leaning on each other’s past experiences and lessons learned to inform our own approach to work. It also means taking a step back as a project manager to recognize the strengths on your team and trust their lead.
  • Approaching things in bite size pieces is also a best practice I use every day. Even when there isn't a mandated sprint rhythm, breaking things down into effort level, goals, and requirements is an excellent way to approach work confidently and avoid getting too overwhelmed.
  • Retrospectives and stand ups are also absolute musts for Scrum practices, and these can be modified to work for companies and project teams of all shapes and sizes. Keeping a practice of collective communication and reflection will keep a team humming and provides a safe space to vent and improve.
Photo by Gautam Lakum on Unsplash

Parting advice

I think furthering your understanding of industry standards and keeping yourself open to new ways of working will always benefit you as a professional. Professional certifications are readily available and may be more relevant than ever.

If you’re on this path, good luck! And here are some things to consider:

  • Do your research – With so many educational institutions out there, you can definitely find the right one for you, with the level of rigor you’re looking for.
  • Look for company credits or incentives – some companies cover part or all of the cost for continuing education.
  • Get started ASAP – You don’t need a full certification to start implementing small tactics to your workflows. Implementing learnings gradually will help you determine if it’s really something you want to pursue more formally.





ert

Pursuing A Professional Certification In Scrum

Professional certifications have become increasingly popular in this age of career switchers and the freelance gig economy. A certification can be a useful way to advance your skill set quickly or make your resume stand out, which can be especially important for those trying to break into a new industry or attract business while self-employed. Whatever your reason may be for pursuing a professional certificate, there is one question only you can answer for yourself: is it worth it?

Finding first-hand experiences from professionals with similar career goals and passions was the most helpful research I used to answer that question for myself. So, here’s mine; why I decided to get Scrum certified, how I evaluated my options, and if it was really worth it.

A shift in mindset

My background originates in brand strategy where it’s typical for work to follow a predictable order, each step informing the next. This made linear techniques like water-fall timelines, completing one phase of work in its entirety before moving onto the next, and documenting granular tasks weeks in advance helpful and easy to implement. When I made the move to more digitally focused work, tasks followed a much looser set of ‘typical’ milestones. While the general outline remained the same (strategy, design, development, launch) there was a lot more overlap with how tasks informed each other, and would keep informing and re-informing as an iterative workflow would encourage.

Trying to fit a very fluid process into my very stiff linear approach to project planning didn’t work so well. I didn’t have the right strategies to manage risks in a productive way without feeling like the whole project was off track; with the habit of account for granular details all the time, I struggled to lean on others to help define what we should work on and when, and being okay if that changed once, or twice, or three times. Everything I learned about the process of product development came from learning on the job and making a ton of mistakes—and I knew I wanted to get better.

Photo by Christin Hume on Unsplash

I was fortunate enough to work with a group of developers who were looking to make a change, too. Being ‘agile’-enthusiasts, this group of developers were desperately looking for ways to infuse our approach to product work with agile-minded principles (the broad definition of ‘agile’ comes from ‘The Agile Manifesto’, which has influenced frameworks for organizing people and information, often applied in product development). This not only applied to how I worked with them, but how they worked with each other, and the way we all onboarded clients to these new expectations. This was a huge eye opener to me. Soon enough, I started applying these agile strategies to my day-to-day— running stand-ups, setting up backlogs, and reorganizing the way I thought about work output. It’s from this experience that I decided it may be worth learning these principles more formally.

The choice to get certified

There is a lot of literature out there about agile methodologies and a lot to be learned from casual research. This benefitted me for a while until I started to work on more complicated projects, or projects with more ambitious feature requests. My decision to ultimately pursue a formal agile certification really came down to three things:

  1. An increased use of agile methods across my team. Within my day-to-day I would encounter more team members who were familiar with these tactics and wanted to use them to structure the projects they worked on.
  2. The need for a clear definition of what processes to follow. I needed to grasp a real understanding of how to implement agile processes and stay consistent with using them to be an effective champion of these principles.
  3. Being able to diversify my experience. Finding ways to differentiate my resume from others with similar experience would be an added benefit to getting a certification. If nothing else, it would demonstrate that I’m curious-minded and proactive about my career.

To achieve these things, I gravitated towards a more foundational education in a specific agile-methodology. This made Scrum the most logical choice given it’s the basis for many of the agile strategies out there and its dominance in the field.

Evaluating all the options

For Scrum education and certification, there are really two major players to consider.

  1. Scrum Alliance - Probably the most well known Scrum organization is Scrum Alliance. They are a highly recognizable organization that does a lot to further the broader understanding of Scrum as a practice.
  2. Scrum.org - Led by the original co-founder of Scrum, Ken Schwaber, Scrum.org is well-respected and touted for its authority in the industry.

Each has their own approach to teaching and awarding certifications as well as differences in price point and course style that are important to be aware of.

SCRUM ALLIANCE

Pros

  • Strong name recognition and leaders in the Scrum field
  • Offers both in-person and online courses
  • Hosts in-person events, webinars, and global conferences
  • Provides robust amounts of educational resources for its members
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Members are required to keep their skills up to date by earning educational credits throughout the year to retain their certification
  • Consistent information across all course administrators ensuring you'll be set up to succeed when taking your certification test.

Cons

  • High cost creates a significant barrier to entry (we’re talking in the thousands of dollars here)
  • Courses are required to take the certification test
  • Certification expires after two years, requiring additional investment in time and/or money to retain credentials
  • Difficult to find sample course material ahead of committing to a course
  • Courses are several days long which may mean taking time away from a day job to complete them

SCRUM.ORG

Pros

  • Strong clout due to its founder, Ken Schwaber, who is the originator of Scrum
  • Offers in-person classes and self-paced options
  • Hosts in-person events and meetups around the world
  • Provides free resources and materials to the public, including practice tests
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Minimum score on certification test required to pass; certification lasts for life
  • Lower cost for certification when compared to peers

Cons

  • Much lesser known to the general public, as compared to its counterpart
  • Less sophisticated educational resources (mostly confined to PDFs or online forums) making digesting the material challenging
  • Practice tests are slightly out of date making them less effective as a study tool
  • Self-paced education is not structured and therefore can’t ensure you’re learning everything you need to know for the test
  • Lack of active and engaging community will leave something to be desired

Before coming to a decision, it was helpful to me to weigh these pros and cons against a set of criteria. Here’s a helpful scorecard I used to compare the two institutions.

Scrum Alliance Scrum.org
Affordability ⚪⚪⚪
Rigor⚪⚪⚪⚪⚪
Reputation⚪⚪⚪⚪⚪
Recognition⚪⚪⚪
Community⚪⚪⚪
Access⚪⚪⚪⚪⚪
Flexibility⚪⚪⚪
Specialization⚪⚪⚪⚪⚪⚪
Requirements⚪⚪⚪
Longevity⚪⚪⚪

For me, the four areas that were most important to me were:

  • Affordability - I’d be self-funding this certificate so the investment of cost would need to be manageable.
  • Self-paced - Not having a lot of time to devote in one sitting, the ability to chip away at coursework was appealing to me.
  • Reputation - Having a certificate backed by a well-respected institution was important to me if I was going to put in the time to achieve this credential.
  • Access - Because I wanted to be a champion for this framework for others in my organization, having access to resources and materials would help me do that more effectively.

Ultimately, I decided upon a Professional Scrum Master certification from Scrum.org! The price and flexibility of learning course content were most important to me. I found a ton of free materials on Scrum.org that I could study myself and their practice tests gave me a good idea of how well I was progressing before I committed to the cost of actually taking the test. And, the pedigree of certification felt comparable to that of Scrum Alliance, especially considering that the founder of Scrum himself ran the organization.

Putting a certificate to good use

I don’t work in a formal Agile company, and not everyone I work with knows the ins and outs of Scrum. I didn’t use my certification to leverage a career change or new job title. So after all that time, money, and energy, was it worth it?

I think so. I feel like I use my certification every day and employ many of the principles of Scrum in my day-to-day management of projects and people.

  • Self-organizing teams is really important when fostering trust and collaboration among project members. This means leaning on each other’s past experiences and lessons learned to inform our own approach to work. It also means taking a step back as a project manager to recognize the strengths on your team and trust their lead.
  • Approaching things in bite size pieces is also a best practice I use every day. Even when there isn't a mandated sprint rhythm, breaking things down into effort level, goals, and requirements is an excellent way to approach work confidently and avoid getting too overwhelmed.
  • Retrospectives and stand ups are also absolute musts for Scrum practices, and these can be modified to work for companies and project teams of all shapes and sizes. Keeping a practice of collective communication and reflection will keep a team humming and provides a safe space to vent and improve.
Photo by Gautam Lakum on Unsplash

Parting advice

I think furthering your understanding of industry standards and keeping yourself open to new ways of working will always benefit you as a professional. Professional certifications are readily available and may be more relevant than ever.

If you’re on this path, good luck! And here are some things to consider:

  • Do your research – With so many educational institutions out there, you can definitely find the right one for you, with the level of rigor you’re looking for.
  • Look for company credits or incentives – some companies cover part or all of the cost for continuing education.
  • Get started ASAP – You don’t need a full certification to start implementing small tactics to your workflows. Implementing learnings gradually will help you determine if it’s really something you want to pursue more formally.




ert

How to make sure your call to action buttons convert the way you want

You are probably already familiar with the concept of call to action, but if somehow you are new to web design, call to action refers to elements in a page that request an action from its visitors. If you are indeed new to web design, there are high chances that you will neglect this important […]




ert

How to Design Sales Funnels That Convert

According to Pardot, 79% of marketing campaigns never lead to purchases. Only 4% of website visitors make up their mind to make a purchase. So you ask yourself, where does the other 96% go? Well, they never buy, but there is something you can do. What they need is encouragement and nurturing. Whilst this is […]




ert

Override window.alert

For years the only bit of feedback web developers could get was via alert("{str}") calls. These days we have the web console but, in rare cases, we don’t have a console and alert calls are our only window into a value at a given time. One problem: if an alert sneaks into production code, your […]

The post Override window.alert appeared first on David Walsh Blog.




ert

CSS Vertical Centering – Everything You Need To Know

Getting content to center perfectly within an element and then ensuring it responds properly at different screen sizes is one of the biggest challenges that still face front-end designers. It is not that it is difficult, but because there are several ways to go about it, figuring out which method is best can be confusing. […]


The post CSS Vertical Centering – Everything You Need To Know appeared first on Web Designer Wall.




ert

Pursuing A Professional Certification In Scrum

Professional certifications have become increasingly popular in this age of career switchers and the freelance gig economy. A certification can be a useful way to advance your skill set quickly or make your resume stand out, which can be especially important for those trying to break into a new industry or attract business while self-employed. Whatever your reason may be for pursuing a professional certificate, there is one question only you can answer for yourself: is it worth it?

Finding first-hand experiences from professionals with similar career goals and passions was the most helpful research I used to answer that question for myself. So, here’s mine; why I decided to get Scrum certified, how I evaluated my options, and if it was really worth it.

A shift in mindset

My background originates in brand strategy where it’s typical for work to follow a predictable order, each step informing the next. This made linear techniques like water-fall timelines, completing one phase of work in its entirety before moving onto the next, and documenting granular tasks weeks in advance helpful and easy to implement. When I made the move to more digitally focused work, tasks followed a much looser set of ‘typical’ milestones. While the general outline remained the same (strategy, design, development, launch) there was a lot more overlap with how tasks informed each other, and would keep informing and re-informing as an iterative workflow would encourage.

Trying to fit a very fluid process into my very stiff linear approach to project planning didn’t work so well. I didn’t have the right strategies to manage risks in a productive way without feeling like the whole project was off track; with the habit of account for granular details all the time, I struggled to lean on others to help define what we should work on and when, and being okay if that changed once, or twice, or three times. Everything I learned about the process of product development came from learning on the job and making a ton of mistakes—and I knew I wanted to get better.

Photo by Christin Hume on Unsplash

I was fortunate enough to work with a group of developers who were looking to make a change, too. Being ‘agile’-enthusiasts, this group of developers were desperately looking for ways to infuse our approach to product work with agile-minded principles (the broad definition of ‘agile’ comes from ‘The Agile Manifesto’, which has influenced frameworks for organizing people and information, often applied in product development). This not only applied to how I worked with them, but how they worked with each other, and the way we all onboarded clients to these new expectations. This was a huge eye opener to me. Soon enough, I started applying these agile strategies to my day-to-day— running stand-ups, setting up backlogs, and reorganizing the way I thought about work output. It’s from this experience that I decided it may be worth learning these principles more formally.

The choice to get certified

There is a lot of literature out there about agile methodologies and a lot to be learned from casual research. This benefitted me for a while until I started to work on more complicated projects, or projects with more ambitious feature requests. My decision to ultimately pursue a formal agile certification really came down to three things:

  1. An increased use of agile methods across my team. Within my day-to-day I would encounter more team members who were familiar with these tactics and wanted to use them to structure the projects they worked on.
  2. The need for a clear definition of what processes to follow. I needed to grasp a real understanding of how to implement agile processes and stay consistent with using them to be an effective champion of these principles.
  3. Being able to diversify my experience. Finding ways to differentiate my resume from others with similar experience would be an added benefit to getting a certification. If nothing else, it would demonstrate that I’m curious-minded and proactive about my career.

To achieve these things, I gravitated towards a more foundational education in a specific agile-methodology. This made Scrum the most logical choice given it’s the basis for many of the agile strategies out there and its dominance in the field.

Evaluating all the options

For Scrum education and certification, there are really two major players to consider.

  1. Scrum Alliance - Probably the most well known Scrum organization is Scrum Alliance. They are a highly recognizable organization that does a lot to further the broader understanding of Scrum as a practice.
  2. Scrum.org - Led by the original co-founder of Scrum, Ken Schwaber, Scrum.org is well-respected and touted for its authority in the industry.

Each has their own approach to teaching and awarding certifications as well as differences in price point and course style that are important to be aware of.

SCRUM ALLIANCE

Pros

  • Strong name recognition and leaders in the Scrum field
  • Offers both in-person and online courses
  • Hosts in-person events, webinars, and global conferences
  • Provides robust amounts of educational resources for its members
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Members are required to keep their skills up to date by earning educational credits throughout the year to retain their certification
  • Consistent information across all course administrators ensuring you'll be set up to succeed when taking your certification test.

Cons

  • High cost creates a significant barrier to entry (we’re talking in the thousands of dollars here)
  • Courses are required to take the certification test
  • Certification expires after two years, requiring additional investment in time and/or money to retain credentials
  • Difficult to find sample course material ahead of committing to a course
  • Courses are several days long which may mean taking time away from a day job to complete them

SCRUM.ORG

Pros

  • Strong clout due to its founder, Ken Schwaber, who is the originator of Scrum
  • Offers in-person classes and self-paced options
  • Hosts in-person events and meetups around the world
  • Provides free resources and materials to the public, including practice tests
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Minimum score on certification test required to pass; certification lasts for life
  • Lower cost for certification when compared to peers

Cons

  • Much lesser known to the general public, as compared to its counterpart
  • Less sophisticated educational resources (mostly confined to PDFs or online forums) making digesting the material challenging
  • Practice tests are slightly out of date making them less effective as a study tool
  • Self-paced education is not structured and therefore can’t ensure you’re learning everything you need to know for the test
  • Lack of active and engaging community will leave something to be desired

Before coming to a decision, it was helpful to me to weigh these pros and cons against a set of criteria. Here’s a helpful scorecard I used to compare the two institutions.

Scrum Alliance Scrum.org
Affordability ⚪⚪⚪
Rigor⚪⚪⚪⚪⚪
Reputation⚪⚪⚪⚪⚪
Recognition⚪⚪⚪
Community⚪⚪⚪
Access⚪⚪⚪⚪⚪
Flexibility⚪⚪⚪
Specialization⚪⚪⚪⚪⚪⚪
Requirements⚪⚪⚪
Longevity⚪⚪⚪

For me, the four areas that were most important to me were:

  • Affordability - I’d be self-funding this certificate so the investment of cost would need to be manageable.
  • Self-paced - Not having a lot of time to devote in one sitting, the ability to chip away at coursework was appealing to me.
  • Reputation - Having a certificate backed by a well-respected institution was important to me if I was going to put in the time to achieve this credential.
  • Access - Because I wanted to be a champion for this framework for others in my organization, having access to resources and materials would help me do that more effectively.

Ultimately, I decided upon a Professional Scrum Master certification from Scrum.org! The price and flexibility of learning course content were most important to me. I found a ton of free materials on Scrum.org that I could study myself and their practice tests gave me a good idea of how well I was progressing before I committed to the cost of actually taking the test. And, the pedigree of certification felt comparable to that of Scrum Alliance, especially considering that the founder of Scrum himself ran the organization.

Putting a certificate to good use

I don’t work in a formal Agile company, and not everyone I work with knows the ins and outs of Scrum. I didn’t use my certification to leverage a career change or new job title. So after all that time, money, and energy, was it worth it?

I think so. I feel like I use my certification every day and employ many of the principles of Scrum in my day-to-day management of projects and people.

  • Self-organizing teams is really important when fostering trust and collaboration among project members. This means leaning on each other’s past experiences and lessons learned to inform our own approach to work. It also means taking a step back as a project manager to recognize the strengths on your team and trust their lead.
  • Approaching things in bite size pieces is also a best practice I use every day. Even when there isn't a mandated sprint rhythm, breaking things down into effort level, goals, and requirements is an excellent way to approach work confidently and avoid getting too overwhelmed.
  • Retrospectives and stand ups are also absolute musts for Scrum practices, and these can be modified to work for companies and project teams of all shapes and sizes. Keeping a practice of collective communication and reflection will keep a team humming and provides a safe space to vent and improve.
Photo by Gautam Lakum on Unsplash

Parting advice

I think furthering your understanding of industry standards and keeping yourself open to new ways of working will always benefit you as a professional. Professional certifications are readily available and may be more relevant than ever.

If you’re on this path, good luck! And here are some things to consider:

  • Do your research – With so many educational institutions out there, you can definitely find the right one for you, with the level of rigor you’re looking for.
  • Look for company credits or incentives – some companies cover part or all of the cost for continuing education.
  • Get started ASAP – You don’t need a full certification to start implementing small tactics to your workflows. Implementing learnings gradually will help you determine if it’s really something you want to pursue more formally.




ert

Vert.x ramblings: Asynchronous network, your time has come

With the debut of Vert.x, the asynchronous framework is reaching an inflection point, suggests Andrew Cholakian. With Vert.x, the software is packaged together in such a way as to be extremely practical, he states. For some JVM zealots, Vert.x may meet needs recently and apparently addressed by node.js. Vert.x is an asynchronous application server – Read the rest...






ert

Is UX Certification worth it?

BCS launched their Foundation Certificate in User Experience 3 years ago. We thought this was an opportune time to review its effectiveness. We contacted candidates who had taken (and passed) the certificate through Userfocus and asked, 'What impact has attaining the BCS Foundation Certificate in UX had on your job?' Ten key themes emerged.




ert

5 Product Image Tips For High Converting Landing Pages

They say that a picture is worth a thousand words, but have you ever stopped to think what your Ecommerce images are saying about the products you’re trying to sell online? Are your photos helping your products to jump off the screen and convince shoppers to buy them? Or, are your product images quite simply […]

Original post: 5 Product Image Tips For High Converting Landing Pages

The post 5 Product Image Tips For High Converting Landing Pages appeared first on Daily Blog Tips.




ert

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.




ert

Judge Could Hold Up Trump Administration's Bid to Clear Flynn, Legal Experts say

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.




ert

Elizabeth Gilbert: The Art of Being Yourself

Brace yourself for a TRULY powerful episode with the bestselling author and creative genius, Elizabeth Gilbert. Although best known for her memoir Eat, Pray, Love–which went on to sell over 12 million copies and became a film staring Julia Roberts—she’s also one of Time Magazine’s 100 most influential people in the world… The whole world. Spend some time with her in your ears on today’s podcast and you’ll know why in under a minute…   In this episode, we cover How Liz considers mental health her full time job, and writing / being a professional creator is a hobby.  How the only way out of pain is through honesty. Liz shares her experiences working through the loss of her partner to cancer. The things we won’t even admit to ourselves will cause us pain, even to the point of mental and physical breakdown Her latest INCREDIBLE novel called City of Girls (…a “delicious novel of glamour, sex, and adventure, about a young woman discovering that you don’t have to be a good girl to be a good person”) Why mercy is the foundation to any creative endeavor. How creativity and writing can be a tool to slow the mind during hard times. And […]

The post Elizabeth Gilbert: The Art of Being Yourself appeared first on Chase Jarvis Photography.




ert

The Introvert Advantage with Beth Comstock

Even though I’m an extrovert, I have a feeling the future favors the introvert. Beth Comstock was at the CreativeLive studios in Seattle and I could not help but snag her for a quick moment to pick her brain on one of the most popular topics on my channel — navigating an extroverted world as an introvert. As a self-described introvert, Beth knows what it’s like to find elevate your strengths and have the courage to defend your creative ideas. Beth was named one of the most powerful women in business. After leaving a 27 year career at GE as their Chief Marketing Officer and Vice Chair, she decided to got a completely different direction to focus on new areas such as writing, art, exploration, and discovery. In this episode, Beth shares her advice to embrace your nature, and bring those strengths to any client, team, or situation. Enjoy! If you dig the show, please give a shout out to Beth on social and let her know. ???? FOLLOW BETH: twitter | instagram | website Listen to the Podcast  Subscribe   This podcast is brought to you by CreativeLive. CreativeLive is the world’s largest hub for online creative education in […]

The post The Introvert Advantage with Beth Comstock appeared first on Chase Jarvis Photography.




ert

Pursuing A Professional Certification In Scrum

Professional certifications have become increasingly popular in this age of career switchers and the freelance gig economy. A certification can be a useful way to advance your skill set quickly or make your resume stand out, which can be especially important for those trying to break into a new industry or attract business while self-employed. Whatever your reason may be for pursuing a professional certificate, there is one question only you can answer for yourself: is it worth it?

Finding first-hand experiences from professionals with similar career goals and passions was the most helpful research I used to answer that question for myself. So, here’s mine; why I decided to get Scrum certified, how I evaluated my options, and if it was really worth it.

A shift in mindset

My background originates in brand strategy where it’s typical for work to follow a predictable order, each step informing the next. This made linear techniques like water-fall timelines, completing one phase of work in its entirety before moving onto the next, and documenting granular tasks weeks in advance helpful and easy to implement. When I made the move to more digitally focused work, tasks followed a much looser set of ‘typical’ milestones. While the general outline remained the same (strategy, design, development, launch) there was a lot more overlap with how tasks informed each other, and would keep informing and re-informing as an iterative workflow would encourage.

Trying to fit a very fluid process into my very stiff linear approach to project planning didn’t work so well. I didn’t have the right strategies to manage risks in a productive way without feeling like the whole project was off track; with the habit of account for granular details all the time, I struggled to lean on others to help define what we should work on and when, and being okay if that changed once, or twice, or three times. Everything I learned about the process of product development came from learning on the job and making a ton of mistakes—and I knew I wanted to get better.

Photo by Christin Hume on Unsplash

I was fortunate enough to work with a group of developers who were looking to make a change, too. Being ‘agile’-enthusiasts, this group of developers were desperately looking for ways to infuse our approach to product work with agile-minded principles (the broad definition of ‘agile’ comes from ‘The Agile Manifesto’, which has influenced frameworks for organizing people and information, often applied in product development). This not only applied to how I worked with them, but how they worked with each other, and the way we all onboarded clients to these new expectations. This was a huge eye opener to me. Soon enough, I started applying these agile strategies to my day-to-day— running stand-ups, setting up backlogs, and reorganizing the way I thought about work output. It’s from this experience that I decided it may be worth learning these principles more formally.

The choice to get certified

There is a lot of literature out there about agile methodologies and a lot to be learned from casual research. This benefitted me for a while until I started to work on more complicated projects, or projects with more ambitious feature requests. My decision to ultimately pursue a formal agile certification really came down to three things:

  1. An increased use of agile methods across my team. Within my day-to-day I would encounter more team members who were familiar with these tactics and wanted to use them to structure the projects they worked on.
  2. The need for a clear definition of what processes to follow. I needed to grasp a real understanding of how to implement agile processes and stay consistent with using them to be an effective champion of these principles.
  3. Being able to diversify my experience. Finding ways to differentiate my resume from others with similar experience would be an added benefit to getting a certification. If nothing else, it would demonstrate that I’m curious-minded and proactive about my career.

To achieve these things, I gravitated towards a more foundational education in a specific agile-methodology. This made Scrum the most logical choice given it’s the basis for many of the agile strategies out there and its dominance in the field.

Evaluating all the options

For Scrum education and certification, there are really two major players to consider.

  1. Scrum Alliance - Probably the most well known Scrum organization is Scrum Alliance. They are a highly recognizable organization that does a lot to further the broader understanding of Scrum as a practice.
  2. Scrum.org - Led by the original co-founder of Scrum, Ken Schwaber, Scrum.org is well-respected and touted for its authority in the industry.

Each has their own approach to teaching and awarding certifications as well as differences in price point and course style that are important to be aware of.

SCRUM ALLIANCE

Pros

  • Strong name recognition and leaders in the Scrum field
  • Offers both in-person and online courses
  • Hosts in-person events, webinars, and global conferences
  • Provides robust amounts of educational resources for its members
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Members are required to keep their skills up to date by earning educational credits throughout the year to retain their certification
  • Consistent information across all course administrators ensuring you'll be set up to succeed when taking your certification test.

Cons

  • High cost creates a significant barrier to entry (we’re talking in the thousands of dollars here)
  • Courses are required to take the certification test
  • Certification expires after two years, requiring additional investment in time and/or money to retain credentials
  • Difficult to find sample course material ahead of committing to a course
  • Courses are several days long which may mean taking time away from a day job to complete them

SCRUM.ORG

Pros

  • Strong clout due to its founder, Ken Schwaber, who is the originator of Scrum
  • Offers in-person classes and self-paced options
  • Hosts in-person events and meetups around the world
  • Provides free resources and materials to the public, including practice tests
  • Has specialization tracks for folks looking to apply Scrum to their specific discipline
  • Minimum score on certification test required to pass; certification lasts for life
  • Lower cost for certification when compared to peers

Cons

  • Much lesser known to the general public, as compared to its counterpart
  • Less sophisticated educational resources (mostly confined to PDFs or online forums) making digesting the material challenging
  • Practice tests are slightly out of date making them less effective as a study tool
  • Self-paced education is not structured and therefore can’t ensure you’re learning everything you need to know for the test
  • Lack of active and engaging community will leave something to be desired

Before coming to a decision, it was helpful to me to weigh these pros and cons against a set of criteria. Here’s a helpful scorecard I used to compare the two institutions.

Scrum Alliance Scrum.org
Affordability ⚪⚪⚪
Rigor⚪⚪⚪⚪⚪
Reputation⚪⚪⚪⚪⚪
Recognition⚪⚪⚪
Community⚪⚪⚪
Access⚪⚪⚪⚪⚪
Flexibility⚪⚪⚪
Specialization⚪⚪⚪⚪⚪⚪
Requirements⚪⚪⚪
Longevity⚪⚪⚪

For me, the four areas that were most important to me were:

  • Affordability - I’d be self-funding this certificate so the investment of cost would need to be manageable.
  • Self-paced - Not having a lot of time to devote in one sitting, the ability to chip away at coursework was appealing to me.
  • Reputation - Having a certificate backed by a well-respected institution was important to me if I was going to put in the time to achieve this credential.
  • Access - Because I wanted to be a champion for this framework for others in my organization, having access to resources and materials would help me do that more effectively.

Ultimately, I decided upon a Professional Scrum Master certification from Scrum.org! The price and flexibility of learning course content were most important to me. I found a ton of free materials on Scrum.org that I could study myself and their practice tests gave me a good idea of how well I was progressing before I committed to the cost of actually taking the test. And, the pedigree of certification felt comparable to that of Scrum Alliance, especially considering that the founder of Scrum himself ran the organization.

Putting a certificate to good use

I don’t work in a formal Agile company, and not everyone I work with knows the ins and outs of Scrum. I didn’t use my certification to leverage a career change or new job title. So after all that time, money, and energy, was it worth it?

I think so. I feel like I use my certification every day and employ many of the principles of Scrum in my day-to-day management of projects and people.

  • Self-organizing teams is really important when fostering trust and collaboration among project members. This means leaning on each other’s past experiences and lessons learned to inform our own approach to work. It also means taking a step back as a project manager to recognize the strengths on your team and trust their lead.
  • Approaching things in bite size pieces is also a best practice I use every day. Even when there isn't a mandated sprint rhythm, breaking things down into effort level, goals, and requirements is an excellent way to approach work confidently and avoid getting too overwhelmed.
  • Retrospectives and stand ups are also absolute musts for Scrum practices, and these can be modified to work for companies and project teams of all shapes and sizes. Keeping a practice of collective communication and reflection will keep a team humming and provides a safe space to vent and improve.
Photo by Gautam Lakum on Unsplash

Parting advice

I think furthering your understanding of industry standards and keeping yourself open to new ways of working will always benefit you as a professional. Professional certifications are readily available and may be more relevant than ever.

If you’re on this path, good luck! And here are some things to consider:

  • Do your research – With so many educational institutions out there, you can definitely find the right one for you, with the level of rigor you’re looking for.
  • Look for company credits or incentives – some companies cover part or all of the cost for continuing education.
  • Get started ASAP – You don’t need a full certification to start implementing small tactics to your workflows. Implementing learnings gradually will help you determine if it’s really something you want to pursue more formally.




ert

The Canon EOS R5 release gets closer as it passes Bluetooth certification

We’re a big step closer to a Canon EOS R5 release announcement now, as Nokishita Tweets that it has passed its Bluetooth certification. The belief is that the EOS R5 was originally scheduled to ship in July, and Canon Rumors reports that they’ve been told that’ll still happen. With lockdowns still in effect in much […]

The post The Canon EOS R5 release gets closer as it passes Bluetooth certification appeared first on DIY Photography.




ert

Review: Alberto Cairo, How Charts Lie

Alberto Cairo’s new book, How Charts Lie, takes readers on a tour of how charts are used and misused, and teaches them how to not be misled. It’s a useful book for both makers and consumers of charts, in the news, business, and pretty much anywhere else. When Alberto started talking about the title on […]




ert

Co-Seifert Fibrations of Compact Flat Orbifolds. (arXiv:2002.12799v2 [math.GT] UPDATED)

In this paper, we develop the theory for classifying all the geometric fibrations of compact, connected, flat $n$-orbifolds, over a 1-orbifold, up to affine equivalence. We apply our classification theory to classify all the geometric fibrations of compact, connected, flat $2$-orbifolds, over a 1-orbifold, up to affine equivalence. This paper is an essential part of our project to give a geometric proof of the classification of all closed flat 4-manifolds.




ert

Continuity properties of the shearlet transform and the shearlet synthesis operator on the Lizorkin type spaces. (arXiv:2005.03505v1 [math.FA])

We develop a distributional framework for the shearlet transform $mathcal{S}_{psi}colonmathcal{S}_0(mathbb{R}^2) omathcal{S}(mathbb{S})$ and the shearlet synthesis operator $mathcal{S}^t_{psi}colonmathcal{S}(mathbb{S}) omathcal{S}_0(mathbb{R}^2)$, where $mathcal{S}_0(mathbb{R}^2)$ is the Lizorkin test function space and $mathcal{S}(mathbb{S})$ is the space of highly localized test functions on the standard shearlet group $mathbb{S}$. These spaces and their duals $mathcal{S}_0^prime (mathbb R^2),, mathcal{S}^prime (mathbb{S})$ are called Lizorkin type spaces of test functions and distributions. We analyze the continuity properties of these transforms when the admissible vector $psi$ belongs to $mathcal{S}_0(mathbb{R}^2)$. Then, we define the shearlet transform and the shearlet synthesis operator of Lizorkin type distributions as transpose mappings of the shearlet synthesis operator and the shearlet transform, respectively. They yield continuous mappings from $mathcal{S}_0^prime (mathbb R^2)$ to $mathcal{S}^prime (mathbb{S})$ and from $mathcal{S}^prime (mathbb S)$ to $mathcal{S}_0^prime (mathbb{R}^2)$. Furthermore, we show the consistency of our definition with the shearlet transform defined by direct evaluation of a distribution on the shearlets. The same can be done for the shearlet synthesis operator. Finally, we give a reconstruction formula for Lizorkin type distributions, from which follows that the action of such generalized functions can be written as an absolutely convergent integral over the standard shearlet group.




ert

Riemann-Hilbert approach and N-soliton formula for the N-component Fokas-Lenells equations. (arXiv:2005.03319v1 [nlin.SI])

In this work, the generalized $N$-component Fokas-Lenells(FL) equations, which have been studied by Guo and Ling (2012 J. Math. Phys. 53 (7) 073506) for $N=2$, are first investigated via Riemann-Hilbert(RH) approach. The main purpose of this is to study the soliton solutions of the coupled Fokas-Lenells(FL) equations for any positive integer $N$, which have more complex linear relationship than the analogues reported before. We first analyze the spectral analysis of the Lax pair associated with a $(N+1) imes (N+1)$ matrix spectral problem for the $N$-component FL equations. Then, a kind of RH problem is successfully formulated. By introducing the special conditions of irregularity and reflectionless case, the $N$-soliton solution formula of the equations are derived through solving the corresponding RH problem. Furthermore, take $N=2,3$ and $4$ for examples, the localized structures and dynamic propagation behavior of their soliton solutions and their interactions are discussed by some graphical analysis.




ert

On the Gorenstein property of the Ehrhart ring of the stable set polytope of an h-perfect graph. (arXiv:2005.03259v1 [math.CO])

In this paper, we give a criterion of the Gorenstein property of the Ehrhart ring of the stable set polytope of an h-perfect graph: the Ehrhart ring of the stable set polytope of an h-perfect graph $G$ is Gorenstein if and only if (1) sizes of maximal cliques are constant (say $n$) and (2) (a) $n=1$, (b) $n=2$ and there is no odd cycle without chord and length at least 7 or (c) $ngeq 3$ and there is no odd cycle without chord and length at least 5.




ert

The Sensitivity of Language Models and Humans to Winograd Schema Perturbations. (arXiv:2005.01348v2 [cs.CL] UPDATED)

Large-scale pretrained language models are the major driving force behind recent improvements in performance on the Winograd Schema Challenge, a widely employed test of common sense reasoning ability. We show, however, with a new diagnostic dataset, that these models are sensitive to linguistic perturbations of the Winograd examples that minimally affect human understanding. Our results highlight interesting differences between humans and language models: language models are more sensitive to number or gender alternations and synonym replacements than humans, and humans are more stable and consistent in their predictions, maintain a much higher absolute performance, and perform better on non-associative instances than associative ones. Overall, humans are correct more often than out-of-the-box models, and the models are sometimes right for the wrong reasons. Finally, we show that fine-tuning on a large, task-specific dataset can offer a solution to these issues.




ert

Teaching Cameras to Feel: Estimating Tactile Physical Properties of Surfaces From Images. (arXiv:2004.14487v2 [cs.CV] UPDATED)

The connection between visual input and tactile sensing is critical for object manipulation tasks such as grasping and pushing. In this work, we introduce the challenging task of estimating a set of tactile physical properties from visual information. We aim to build a model that learns the complex mapping between visual information and tactile physical properties. We construct a first of its kind image-tactile dataset with over 400 multiview image sequences and the corresponding tactile properties. A total of fifteen tactile physical properties across categories including friction, compliance, adhesion, texture, and thermal conductance are measured and then estimated by our models. We develop a cross-modal framework comprised of an adversarial objective and a novel visuo-tactile joint classification loss. Additionally, we develop a neural architecture search framework capable of selecting optimal combinations of viewing angles for estimating a given physical property.




ert

Optimal Adjacent Vertex-Distinguishing Edge-Colorings of Circulant Graphs. (arXiv:2004.12822v2 [cs.DM] UPDATED)

A k-proper edge-coloring of a graph G is called adjacent vertex-distinguishing if any two adjacent vertices are distinguished by the set of colors appearing in the edges incident to each vertex. The smallest value k for which G admits such coloring is denoted by $chi$'a (G). We prove that $chi$'a (G) = 2R + 1 for most circulant graphs Cn([[1, R]]).




ert

Jealousy-freeness and other common properties in Fair Division of Mixed Manna. (arXiv:2004.11469v2 [cs.GT] UPDATED)

We consider a fair division setting where indivisible items are allocated to agents. Each agent in the setting has strictly negative, zero or strictly positive utility for each item. We, thus, make a distinction between items that are good for some agents and bad for other agents (i.e. mixed), good for everyone (i.e. goods) or bad for everyone (i.e. bads). For this model, we study axiomatic concepts of allocations such as jealousy-freeness up to one item, envy-freeness up to one item and Pareto-optimality. We obtain many new possibility and impossibility results in regard to combinations of these properties. We also investigate new computational tasks related to such combinations. Thus, we advance the state-of-the-art in fair division of mixed manna.




ert

A Shift Selection Strategy for Parallel Shift-Invert Spectrum Slicing in Symmetric Self-Consistent Eigenvalue Computation. (arXiv:1908.06043v2 [math.NA] UPDATED)

The central importance of large scale eigenvalue problems in scientific computation necessitates the development of massively parallel algorithms for their solution. Recent advances in dense numerical linear algebra have enabled the routine treatment of eigenvalue problems with dimensions on the order of hundreds of thousands on the world's largest supercomputers. In cases where dense treatments are not feasible, Krylov subspace methods offer an attractive alternative due to the fact that they do not require storage of the problem matrices. However, demonstration of scalability of either of these classes of eigenvalue algorithms on computing architectures capable of expressing massive parallelism is non-trivial due to communication requirements and serial bottlenecks, respectively. In this work, we introduce the SISLICE method: a parallel shift-invert algorithm for the solution of the symmetric self-consistent field (SCF) eigenvalue problem. The SISLICE method drastically reduces the communication requirement of current parallel shift-invert eigenvalue algorithms through various shift selection and migration techniques based on density of states estimation and k-means clustering, respectively. This work demonstrates the robustness and parallel performance of the SISLICE method on a representative set of SCF eigenvalue problems and outlines research directions which will be explored in future work.




ert

Space-Efficient Vertex Separators for Treewidth. (arXiv:1907.00676v3 [cs.DS] UPDATED)

For $n$-vertex graphs with treewidth $k = O(n^{1/2-epsilon})$ and an arbitrary $epsilon>0$, we present a word-RAM algorithm to compute vertex separators using only $O(n)$ bits of working memory. As an application of our algorithm, we give an $O(1)$-approximation algorithm for tree decomposition. Our algorithm computes a tree decomposition in $c^k n (log log n) log^* n$ time using $O(n)$ bits for some constant $c > 0$.

We finally use the tree decomposition obtained by our algorithm to solve Vertex Cover, Independent Set, Dominating Set, MaxCut and $3$-Coloring by using $O(n)$ bits as long as the treewidth of the graph is smaller than $c' log n$ for some problem dependent constant $0 < c' < 1$.




ert

ErdH{o}s-P'osa property of chordless cycles and its applications. (arXiv:1711.00667v3 [math.CO] UPDATED)

A chordless cycle, or equivalently a hole, in a graph $G$ is an induced subgraph of $G$ which is a cycle of length at least $4$. We prove that the ErdH{o}s-P'osa property holds for chordless cycles, which resolves the major open question concerning the ErdH{o}s-P'osa property. Our proof for chordless cycles is constructive: in polynomial time, one can find either $k+1$ vertex-disjoint chordless cycles, or $c_1k^2 log k+c_2$ vertices hitting every chordless cycle for some constants $c_1$ and $c_2$. It immediately implies an approximation algorithm of factor $mathcal{O}(sf{opt}log {sf opt})$ for Chordal Vertex Deletion. We complement our main result by showing that chordless cycles of length at least $ell$ for any fixed $ellge 5$ do not have the ErdH{o}s-P'osa property.




ert

Checking Qualitative Liveness Properties of Replicated Systems with Stochastic Scheduling. (arXiv:2005.03555v1 [cs.LO])

We present a sound and complete method for the verification of qualitative liveness properties of replicated systems under stochastic scheduling. These are systems consisting of a finite-state program, executed by an unknown number of indistinguishable agents, where the next agent to make a move is determined by the result of a random experiment. We show that if a property of such a system holds, then there is always a witness in the shape of a Presburger stage graph: a finite graph whose nodes are Presburger-definable sets of configurations. Due to the high complexity of the verification problem (non-elementary), we introduce an incomplete procedure for the construction of Presburger stage graphs, and implement it on top of an SMT solver. The procedure makes extensive use of the theory of well-quasi-orders, and of the structural theory of Petri nets and vector addition systems. We apply our results to a set of benchmarks, in particular to a large collection of population protocols, a model of distributed computation extensively studied by the distributed computing community.




ert

Probabilistic Hyperproperties of Markov Decision Processes. (arXiv:2005.03362v1 [cs.LO])

We study the specification and verification of hyperproperties for probabilistic systems represented as Markov decision processes (MDPs). Hyperproperties are system properties that describe the correctness of a system as a relation between multiple executions. Hyperproperties generalize trace properties and include information-flow security requirements, like noninterference, as well as requirements like symmetry, partial observation, robustness, and fault tolerance. We introduce the temporal logic PHL, which extends classic probabilistic logics with quantification over schedulers and traces. PHL can express a wide range of hyperproperties for probabilistic systems, including both classical applications, such as differential privacy, and novel applications in areas such as robotics and planning. While the model checking problem for PHL is in general undecidable, we provide methods both for proving and for refuting a class of probabilistic hyperproperties for MDPs.