Technology

2023-08-03 20:46:44

A Apple today revealed its financial results for the third fiscal quarter of 2023completed on July 1st.

The company disclosed a revenue of US$81.8 billion (-1%), com $19.9 billion in net income (+3%) and US$1,26 in earnings per diluted share (+5%).

How regarding taking a look at these numbers in another way? The charts below give us an idea of ​​Apple’s business in the different regions of the world, as well as the performance of each of its main product/service segments.

In general, the product segments had a small drop (iPhones and Macs) — with the exception of the iPad, which dropped a lot. Wearables had a timid growth, while Apple’s services continue to rise very well.

We will see how the market will receive the new numbers…

1691100458
#Apples #Fiscal #Charts

2023-08-03 20:06:00

To offer more security and convenience to customers, Nubank announces a new feature: the temporary virtual card. With this resource, users will be able to create virtual cards that automatically expire following 24 hours of use, reducing the risk of cloning and fraud in online purchases. Something that people were used to doing, but manually.

How does Nubank’s temporary virtual card work?

Virtual card; Photo: Nubank

As of August 7, 2023, Nubank customers will be able to create temporary virtual cards directly through the application. these cards will be valid for only 24 hours and will expire automatically following that period, being no longer usable. The permanent virtual card option will also be available, allowing use on frequently used websites and applications, such as digital wallets, subscriptions and streaming, delivery or transport services.

How to generate the temporary virtual card:

Access the Nubank application and go to the home screen. Tap “My Cards”. Then select the option “Create temporary virtual card”. Enter your 4-digit password to confirm card creation. To view your card details, click on “View Card Details” and re-enter your password.

Usage and validity:

Once generated, the temporary virtual card will be ready for immediate use. During the next 24 hours, the customer can make as many purchases as he wants with this card, and it can be used in several online establishments. It is important to note that only one temporary virtual card can be active at a time.

After the 24 hour period, the card will be automatically deleted and the customer will receive a notification that the card is no longer available for use. On the “My cards” page, you can check the remaining time until the card is erased.

History and transactions:

To consult the history of transactions made with temporary cards, simply access the “Credit Card” area in the application. If it is necessary to request a reversal, split purchases or report an operation, the customer can easily do so by clicking on the purchase in question and following the instructions provided.

Usage recommendations:

Despite the practicality of the temporary virtual card, Nubank recommends that customers do not use it to purchase tickets for concerts, football matches or similar events, as, in some situations, it may be necessary to present the physical card at the time of the event.

This new functionality will be released gradually to Nubank customers, so it is essential to keep the application always up to date in order to be among the first to enjoy this advantage.

Source: Blog Nubank

1691099245
#UFA #Nubank #temporary #virtual #card #avoid #cloning

2023-08-03 20:42:16

Introduction

Oberwolfach, 2009

Jean-Pierre Serre is a French mathematician born September 15, 1926 in Bages (Pyrénées-Orientales). He is considered one of the greatest mathematicians of the 20th century. He received numerous awards for his research, including the Fields medal (The Fields medal is the most prestigious award for the recognition of work…) in 1954, making him the youngest to be awarded. He is also the first winner of the Abel Prize, created in 2003.

Biography

Jean-Pierre Serre (Jean-Pierre Serre is a French mathematician born on September 15, 1926…) was born in 1926 in Bages, of pharmacist parents. During his studies at the Nîmes high school, he was awarded first prize in mathematics (Mathematics is a field of abstract knowledge built using …) at the General Competition. In 1945, at the age of 19, he entered the École Normale Supérieure de la rue (The street is a traffic space in the city which serves housing and places…) in Ulm. After a stint as a researcher (A researcher (fem. researcher) designates a person whose job is to do research…) at the CNRS (The National Center for Scientific Research, better known by its acronym CNRS, is the largest …), he defended his thesis (A thesis (from the Greek name thesis, translating to “action of posing”) is…) of State at the Sorbonne (The Sorbonne is a monumental complex in the Latin Quarter of Paris It takes its name from…) in 1951 in algebraic topology (Algebraic topology, formerly called combinatorial topology, is a branch of…) under the direction of Henri Cartan (Henri Cartan, born July 8, 1904 in Nancy and died on…). He was accepted at a very young age into the Bourbaki group founded in particular by Henri Cartan and André Weil (André Weil, born May 6, 1906 in Paris and died in Princeton (New Jersey,…).

Three years later (in 1954), at the age of 27, Jean-Pierre Serre (A greenhouse is a generally closed structure intended for production…) becomes the youngest winner of the Fields medal, a prize which, before the creation of the Abel Prize, was considered the equivalent of the Nobel Prize in mathematics (this one does not exist). In 1956, Serre was elected at the age of 29 to be a professor at the Collège de France (The Collège de France, located at no. 11 place Marcelin-Berthelot in the Latin quarter…) (chair of algebra (Algebra, word of Arabic origin al-jabr (الجبر), is the branch…) and geometry), where he taught until his retirement in 1994 while he also taught at several foreign universities, in particular at the university (A university is an institution of higher education whose objective is the…) of Harvard and at the Institute for Advanced Study of Princeton (United States). Serre remains in the history of the College (A college can designate a group of people sharing the same…) of France since its creation one of its youngest professors. He is now an honorary professor.

Serre is also a member of the Academy of Sciences (An academy of sciences is a learned society whose role is to promote research…) as well as of several foreign academies including the Royal Society of Great Britain (La Grande- Bretagne (in English Great Britain) is an island bordering the northwest coast of…) (1974), the Academy (An academy is an assembly of men of letters, scholars and/or artists recognized by their …) Dutch Academy of Sciences (1978), the United States National Academy of Sciences (1979), the Royal Swedish Academy of Sciences (1981) and the Russian Academy of Sciences (2007). He is Doctor Honoris Causa of several foreign universities, in particular Cambridge (1978), Stockholm (1980), Glasgow (1983), Athens (1996), Harvard (1998), Durham (2000), London (Londres (in English: London – /?l?nd?n/) is the capital as well as the largest city…) (2001), Oslo (2002), Oxford (2003), Bucharest (2004), Barcelona (Barcelona (Barcelona in Catalan and in Castilian) is a municipality in Catalonia – Spain, located…) (2004), Madrid (Madrid is the capital of Spain. The largest and most populous city in the country, it is the…) (2006) and McGill (2008).

Bibliography

Some reference books:

Cours d’arithmétique PUF, Paris (Paris is a French city, capital of France and the capital of the region…) (1970) Linear representations of finite groups Hermann, Paris (1968) Local bodies Hermann, Paris ( 1959) Galois cohomology “Arbres, amalgams, SL(2)” (1977) “Oeuvres/Collected Papers” in four volumes, Springer-Verlag (1986-2000) Lectures on the Mordell-Weil Theorem (1990) Topics in Galois Theory ( 1992) Cohomological Invariants in Galois Cohomology, with Skip Garibaldi and Alexander Merkurjev (2003) “Seminar Papers 1950-1999”, SMF (2001) “Correspondence (Correspondence is an exchange of mail usually extended over a long period. The.. .) Grothendieck-Serre”, edited in collaboration with P. Colmez, SMF (2003) “Algebraic groups and class bodies, Hermann, Paris (1962)” Lie Algebras and Lie groups, Benjamin publisher, New York (New York , in English New York City (officially, City of New York) to distinguish it from…) (1965) Abelian I-adic representations and elliptic curves, Benjamin publisher, New York (1968)

Works and honors

Jean-Pierre Serre is notably a Fields medalist in 1954, Francœur Prize in 1957, Balzan Prize in 1985, CNRS gold medal in 1987, Leroy P. Steele prize in 1995, Wolf prize (The Wolf prizes are officially awarded every year in Israel by the Wolf Foundation…) in 2000.

In 2003, the Norwegian Academy of Sciences and Letters awarded him the first Abel Prize “for having played a key role (literally, the key or key (both spellings are correct) is a removable device…) in giving many fields of mathematics their modern form, notably topology (Topology is a branch of mathematics concerning the study of spatial deformations by…), algebraic geometry (Algebraic geometry is a field of mathematics which, historically ,…) and theory (The word theory comes from the Greek word theorein, which means “to contemplate, observe,…) of numbers”.

Jean-Pierre Serre is a Grand Officer in the Order of the Legion of Honor and Grand Cross of the Order of Merit.

1691097703
#JeanPierre #Serre #Definition #Explanations