San Francisco Opera's


-J. Robert Oppenheimer-

the Father of the Atomic Bomb, and the Trinity Project at Los Alamos National Laboratory in New Mexico.

Gerald Finley, Batter My Heart

One of the exciting performances that you will ever get to see in the recent days. Do not miss out. Book your tickets right away!

john adams

Hi, I am John Adams and I am very much excited to share my thoughts on Doctor Atomic Symphony. Watch me speak here, before visit the event.

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All about the planted tank substrate

The benefit of maintaining natural plants in the aquarium is one of the usual questions among newcomers. The answer is obvious, natural plants contribute to the stability of our facility by consuming directly or indirectly many of the waste compounds that are created in the aquarium. Natural plants, as we have already mentioned in other sections of this section, need micro and macronutrients to develop. These compounds are assimilated from those present in the water column where a strong presence of oxygen is observed and in the substrate where we find a poor presentation of this gas. This article we will dedicate to the substrate that would become the foundations of the planted aquarium and we will see the importance of your choice and a good disposition of it prior to the implementation of our installation.

The substrate plays an important role both in the development of the plants and in the biological balance of the system. The colonies of bacteria responsible for the transformation of nitrite into nitrate and the latter into harmless nitrogen gas are installed on it and in different strata. The presence of one or the other in the different strata is due to the amount of oxygen present. Oxygen-rich surface layers are populated by nitrite-transforming nitrifying bacteria. While in the lower layers of anaerobic or oxygen-poor environments the bacteria responsible for the transformation of nitrate are installed. In addition these bacteria are also responsible for the reduction of nutrients transforming them into compounds assimilable by plants.

The planted tank substrate is an important part of the appearance of the aquarium; in fact they come in different colors to help you create a spectacular frame for your fish or your plants. However, you should also bear in mind that the substrate you choose will be the surface where the populations of beneficial bacteria settle to keep the water free of nitrogenous waste inside the aquarium. It also serves to “camouflage” the waste of fish and food remains until the time of cleaning.

Before installing any type of planted tank substrate it is important to wash it with plenty of water to remove dirt or very fine particles that could be suspended in the aquarium water and turn it cloudy. In the case of aquariums with many plants, special substrates must be used or fertilizers added. In marine aquariums it is recommended not to use stones or sand that come from the earth, as they may contain minerals or other contaminants that alter the quality of the water. When you select the substrate you should take into account three main factors: color, particle size and reaction with water.


The range of substrates for plants is as broad as plant species with specific needs. A bet to guarantee to each plant the levels of fertility, drainage and, even, what is the effect that soil will have on a certain vegetable species.

To know this last aspect, it is important to pay attention to some initials that we will find in each planted tank substrate bag: An indicative of the percentages of Nitrogen (N), Phosphorus (P) and Potassium (K) in a given composition. Thanks to him, we can know exactly what nutrients we will be contributing to a plant to achieve either flowering (for this, the substrate will have a high rate of Phosphorus and Potassium), or only the growth and maintenance of the green color of indoor plants (in this case, the percentage that will be the priority of Nitrogen).

Universal substrate: suitable for most plants. It is characterized for being a spongy, porous earth (thanks to the presence of perlite in its composition), with a balanced pH (between 6.5 and 7) and easy hydration. In addition, it keeps irrigation water well. It is an ideal substrate for both indoor plants and outdoor plants, and even for the garden.

The gravel or grit is the substrate for aquariums more popular. Generally it is inert, that is to say that it does not exchange molecules with water and the pebbles are quite soft, without sharp edges or tips that can hurt the fish. The ideal size is 3-4 mm. Which allows the passage of water for a biological filtering by the bacteria that are installed as the aquarium matures. The larger pebbles allow water to pass through but offer a smaller surface area for bacteria to settle. If you want to install a filter under the substrate, you will have to use gravel and not sand. To choose the color keep in mind that one with pebbles of different shades will better hide the dirt produced by the fish than a completely white or light colored one.

Another type of planted tank substrate is sand for aquariums. This has particles the size of sugar grains, which do not leave enough space for water to circulate or for bacteria to settle. To minimize this effect it is recommended to place a layer that is not very thick. Another problem that occurs is when you want to siphon the bottom of the aquarium to remove the dirt, because the small particles are absorbed and lost with water. This substratum is useful if you have fish in the background, because it is very soft and does not hurt their mouths and appendages while they dig for their food. It is also recommended if you have species of fish or invertebrates that dig to hide or sea cucumbers, which ingest substrate to extract nutrients.

If you are going to install a saltwater aquarium with coral you can choose gravel for corals, conchilla or aragonite. These are composed of calcium carbonate, which dissolves slowly in water and thus help keep the pH stable and slightly alkaline in the aquarium. These types of substrate are served in various shades and sizes, so you can choose the one you like most for your decoration. The verdict is that the planted tank substrate must be carefully chosen!

All about the Ubot Studio Tutorials

Marketing automation or marketing automation is the use of computer software to perform marketing actions in an automated way. Thanks to this, the company can perform processes that would naturally be difficult and achieve more efficiency and greater control over them. For this the Ubot Studio Tutorials is the best!

What is marketing automation or marketing automation – Ubot Studio Tutorials?

Marketing automation is a part of inbound marketing that involves the use of computer software to perform marketing actions in an automated way. Thanks to the implementation Ubot Studio Tutorials for marketing automation, a series of advantages are obtained, among which are:

  • It allows developing complex marketing processes that, naturally, would be difficult or could not be done.
  • It provides more efficiency and reduces personnel costs and time.
  • The company achieves greater control over marketing actions and, in addition, can closely monitor its impact.
  • It allows designing processes of education and automatic maturation of a database (lead nurturing). Thanks to marketing automation, the email and the right content are delivered to the right user at the right time.
  • It also allows you to automatically detect the records that are most prepared to receive a commercial offer taking into account your profile and behaviour with the company (lead scoring by Ubot Studio Tutorials).

Thus, as examples of automation by Ubot Studio Tutorials is important to mention the nutrition of leads or lead nurturing (chains of emails that are sent automatically after visitors to a site carry out a specific action) and lead scoring (lead qualification) , procedure by which is evaluated at which stage of the purchase process is each lead that appears in the database of the company. These two procedures are essential to convey to users the benefits that can be provided by the product or service offered by the company and brings them closer to the purchase.

However, the automation of marketing does not end here: it also has application in other areas of marketing and loyalty. In addition to the automatic education and maturation of a database, we also see it applied in the on-boarding process of software applications, in order that the user can understand the application’s operation, or that he does not leave to use it

Historical evolution and current context

Marketing departments that are set by Ubot Studio Tutorials have undergone a process of modernization in the last 25 years, especially since the appearance of the first search engines on the Internet, in the mid-1990s. A scenario in which the analogue gives ground and in which each more resources and media technological cutting appear, such as Google Adwords, Facebook Ads, etc.

In this context, the need arises to have marketing campaign planning tools, as well as the optimal technology to be able to manage them correctly. This includes the most diverse tools, which allow carrying out all the actions of a digital marketing campaign, for example: sending emails, managing web pages, creating segmented lists or tools that allow unifying the management of all the social profiles.

On the other hand, Ubot Studio Tutorials must not lose sight of the fact that, in recent years, there has been a great compaction of the market, in which more and more companies are launching to market their own software products. Since 2011, the number of software and companies dedicated to digital marketing has doubled every year. Of the 150 companies existing in 2011, it has grown to around 3,900 in 2016.

As an illustrative case, it is enough to remember that inbound marketing was born in 2005 by the company HubSpot. Therefore, this discipline presents in its DNA an undeniable technological base, called to streamline the day to day of various online marketing operations.Likewise, in inbound marketing, a conglomerate of very varied marketing methods and techniques converges: managing a website, creating online content, SEO, mailings, social network management, web analytics, etc.

This is precisely one of the great goals that inspired the emergence of inbound marketing: integrate all these techniques into a single technology, since it is very complicated to use a specific tool for each task. Therefore, inbound marketing cannot be understood without taking marketing automation into consideration. In any case, it should be emphasized that these two concepts are not exactly the same. Automation is just one part of inbound marketing.

Applications of marketing automation

  • Engagement with the product.
  • Automation of repetitive marketing processes.
  1. Engagement with the product

It has to do with the interest aroused by the commercial offer of a company in current or potential customers. It is managed by two techniques:

Sending emails and interactions via Ubot Studio Tutorials: This is one of the most effective methods to publicize a product or service among contacts in a database or keep the interest in them alive. With the automation of marketing, this process undergoes a substantial change: now, emailing campaigns are launched automatically when the user complies with a series of characteristics related to their profile and behaviour with the company. Therefore, the company can have dozens of campaigns that work simultaneously.

While these campaigns also have to be designed, they do not have a moment of completion, unlike conventional emailing actions, with which they can extend their relationship with the client.

Re-engagement: It consists of capturing the attention and interest of the user automatically after a period of inactivity or without interaction occurs. When it is detected that user has a specific time without using a product.

  1. Automation of repetitive marketing processes

This utility of automation is key for the marketing department while offering additional advantages: the end user does not perceive that this process is not carried out naturally and the work is more efficient since it saves money time and resources in the execution of recurring tasks.

You can have the following applications:

Changing the properties of user profiles with help of Ubot Studio Tutorials:

A change of ownership can be automatically implemented to a large volume of database leads. For example, a property can be assigned to all contacts in the database through a workflow.

Patriotism: Say it with Music

Patriotism: Say it with Music

The Fourth of July conjures up images of American flags and fireworks, summer picnics and lemonade. Along with those images are the sounds associated with the holiday. The day is not complete without patriotic music from the local high school marching band, the community concert in the park, or the Boston Pops on television.

Chances are that all of those performances will include some music by one or more of three American composers who have contributed to our American songbook: George M. Cohan, Irving Berlin, and John Philip Sousa.

Patriotism: Say it with Music

George M. Cohan (1878-1942):

Born on July 3, but his love of America was such that he told everyone his birthday was the Fourth of July. He began writing songs and performing in his parents’ vaudeville act practically as soon as he could walk. His songwriting skills and enthusiasm for Broadway led to the development of the musical comedy form. He is so linked to the history of the Broadway musical that a statue of him stands proudly in the center of Times Square. Many of his songs and musical shows had American themes. His most popular patriotic songs include You’re AGrand Old Flag, Yankee Doodle Dandy, and the World War I anthem Over There.

Irving Berlin (1888-1989):

A Russian immigrant, but it could be said that he bled red, white, and blue. His music reflected the country’s good and bad times throughout most of the 20th century. Americans trotted off to two world wars humming his melodies and his inventive shows performed for and starring servicemen led to the development of the USO, an entertainment branch of the Armed Services. His heartfelt tribute to his adopted country – God Bless America – is one of the most well-known and beloved American songs. It has often been said that many Americans believe that it should replace the Star Spangled Banner as our National Anthem. After seeing the popularity of the song, Irving Berlin established the God Bless America Fund, giving all the royalties to the Boy and Girl Scouts of America. First sung by Kate Smith on her radio program in 1938, God Bless America has continued to reassure us even in the most perilous times, as evident from its renewed popularity after September 11, 2001.

John Philip Sousa (1854-1932):

Was known as “The March King”, but none of his marches are more famous than The Stars and Stripes Forever. In 1987, Congress proclaimed this piece the National March, and you will rarely hear a Fourth of July concert that does not program it as the finale. Like all Sousa marches, it sets the feet tapping and the flags waving as Americans from all 50 states recognize its trilling piccolos and soaring brasses.So on the Fourth of July, celebrate the USA by waving your flag to the music of some of our greatest patriotic American composers.



Scott Joplin’s The Entertainer

Scott Joplin's The Entertainer

Scott Joplin’s “The Entertainer,” is a very recognizable piece of music. This music just makes a person want to tap their foot. This piece of music is much more than notes on a piece of paper, it has such a historical significance. Joplin is considered to be the “King of Ragtime,” even though he did not create ragtime music. It was Joplin’s compositions that helped ragtime become popular during his time. Joplin is also considered America’s first African-American composer.

Scott Joplin:

History is not completely positive of when Scott Joplin was born. He is said to have been born to ex-slaves between 1867 and 1868 in Texas. When Joplin was a young child his family moved to Texarkana, which is the border between Texas and Arkansas. While living in a white-owned home in Texarkana, Joplin taught himself the basics of piano. Later, Julius Weiss, a German-born music teacher helped guide Joplin by teaching him the fundamentals of music. In the 1880’s Joplin lived in Sedalia attending Lincoln High School, which was an African-American high school. Around 1896, Joplin took music classes at George R. Smith College, an African-American institute.

“Original Rags” was the first piece that was ever published by Joplin and then his second was “The Maple Leaf Rag” in 1899, which is one of his most famous pieces of work. Original Rags was not the greatest experience for Joplin because he was forced to share credit with Charles Daniels. Daniels’ was credited as an arranger but in some local newspapers he was credited as the composer. After this experience, Joplin received assistance from a young lawyer in Sedalia that helped Joplin create a contract for his next ragtime, The Maple Leaf Rag. The contract guaranteed that Joplin would receive one-cent royalty on each sale of a sheet of music. This generated a small yet steady income for Joplin for the remainder of his life.

The Entertainer:

After he married his wife Belle in 1901, Joplin published his most famous composition “The Entertainer.” Joplin’s well known musical composition; “The Entertainer” is an example of classical ragtime music. “The Entertainer” has a very strong rhythm; the beat within the accompaniment keeps the listener tuned into the music, and is one of the most significant elements. The tone of the composition is firm and doesn’t change from the original key. Joplin does use accidentals and syncopations in the composition to make the piece more capturing. The tempo is written in a 2/4 time, which makes the piece up tempo, but not too fast. The melody is homophonic, which means that the elements are of the same rhythm even though they play different notes throughout the piece of music. The use of crescendo and decrescendo give “The Entertainer” substance and body and helps with the attention-grabbing aspect.

After His Marriage :

To Belle ended he traveled back to Arkansas and married Freddie Alexander in Little Rock. Sadly, ten weeks after their marriage Freddie contracted a cold that turned into pneumonia and she passed at the young age of twenty. By 1916 Joplin was experiencing severe physical and mental symptoms from the syphilis he contracted decades earlier. By January 1917 he had to b hospitalized and later was transferred to a mental hospital where he died on April 1, 1917.

When Joplin composed “The Entertainer” it was not one of his most famous pieces of music at the time. In 1973, the movie “The Sting” helped “The Entertainer” become what it is today. “The Stings” soundtrack won an Academy Award and in 1974 the song reached number three on Billboards Top 100. Many people may recognize the song during the summertime when the ice cream truck comes strolling through your neighborhood.

King of Ragtime:

Scott Joplin’s name was not as well known while he was living, but today we see how Joplin helped pave the way for music today. He was the “King of Ragtime” and helped shape jazz for his future generation. He was commemorated by the United States Post Office on June 9, 1983 with his own Black Heritage stamp. Still to this day, Joplin’s music is still being published, recorded, and purchased by music lovers all over the world. Through Joplin’s music, he helped pave the way for African-American artists and will always be remembered for his accomplishments through music.

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