Ranking_programming_languages_by_energy_efficiency_evaluation.ods - Energy efficiency across programming languages: how do energy, time, and memory relate?. In Proceedings of the 10th ACM SIGPLAN International Conference on Software Language Engineering (pp. 256 ...

 
The lambda calculus, developed in the 1930s by Alonzo Church, is a formal system of computation built from function application. In 1937 Alan Turing proved that the lambda calculus and Turing machines are equivalent models of computation, [36] showing that the lambda calculus is Turing complete. Lambda calculus forms the basis of all functional ... . Kukcmcig

For a lot of programs, the biggest energy suck is between the chair and keyboard. Most low energy languages are harder to code with, hence require more energy up front. Ask how much developer time it took to get all those toy programs to run correctly. My guess is the Python code took 10-20% of the time the C code took to write.The big five—Java, C, C++, Python, and C#—remain on top, with their ranking undisturbed, but C has edged to within a whisper of knocking Java off the top spot. The big mover is R, a ...described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-This table is an extract from a 2017 scientific article, Energy Efficiency Across Programming Languages, and it makes sense: compiled languages like C or C++ are fast and energy efficient while ...The Department of Computer Science and Engineering (CSE) offers undergraduate and graduate programs of study in Computer Science , Computer Science and Business, and Data Science, along with research opportunities in these fields. Computer science, the core of includes the study of computer algorithms, software systems, and the effective use of ... Feb 3, 2023 · In 2023, Java claims the No. 3 spot in terms of the most in-demand programming languages. This object-oriented language is free to use and can run on all platforms. It’s often used in application and web development, and it’s also used on the backend of big-name sites like Google, YouTube, and Amazon. If you’re just learning how to code ... Welcome to IEEE Spectrum ’s ninth annual ranking of the Top Programming Languages! This year we’ve revamped and streamlined our interactive ranking tool and made other changes under the hood, but the goal remains the same—to combine multiple metrics from different sources to estimate the relative popularity of different languages.Aug 9, 2021 · RedMonk uses a blend of data from GitHub and Stack Overflow to come up with its semi-annual language rankings. The top 10 languages in RedMonk's latest rankings are: JavaScript. Python. Java. PHP ... Sep 12, 2018 · Depending on which factors are important for your project you will get a different ranking of possible languages for your project. Conclusion. There is no singular good way to rank programming languages. However whenever you encounter a list or ranking of programming languages just be aware of what techniques they used to create the list. The big five—Java, C, C++, Python, and C#—remain on top, with their ranking undisturbed, but C has edged to within a whisper of knocking Java off the top spot. The big mover is R, a ...Nov 2, 2022 · The idea transmuted over to software programming languages—surely a faster language was a greener one, the logic went. That all changed in 2017 thanks to a group of researchers in Portugal who use what’s called the Computer Language Benchmarks Game (CLBG) as a way of ranking software languages in terms of energy efficiency. 👉 Ranking #programmingLanguages by #energy #efficiency 🤔 Impressive work !👏 ⬇️⬇️⬇️ Rui Pereira, et all, Ranking programming languages by energy efficiency, Science of Computer ... Sep 5, 2023 · The Football Power Index (FPI) is a measure of team strength that is meant to be the best predictor of a team's performance going forward for the rest of the season. FPI represents how many points ... But Python alone does not make a career. In our “Jobs” ranking, it is SQL that shines at No. 1. Ironically though, you’re very unlikely to get a job as a pure SQL programmer.Towards a Green Ranking for Programming Languages. In Programming Languages: 21st Brazilian Symposium, SBLP 2017, Fortaleza, Brazil, September, 2017. Google Scholar Digital Library; Luis Cruz and Rui Abreu. 2017. Performance-based Guidelines for Energy Efficient Mobile Applications.Jun 1, 2015 · Monitor and estimation tool enabled for 2nd Generation Intel® Core™ processors. IPPET is a prototype power monitoring utility that uses Intel-specific energy MSRs to break down power consumption per process and displays them in real-time on a web browser. PowerTOP is a Linux* tool to diagnose issues with power consumption and power management. Energy efficiency activities between 2010 and 2012 resulted in enough energy savings to power nearly 800,000 homes for a year and cut carbon dioxide emissions by 5.3 million tons, the equivalent of removing more than 1 million cars from California’s roads. The CPUC regulates ratepayer-funded energy efficiency programs.ENERGY STAR is the simple choice for energy efficiency, making it easy to find products that will save you money and protect the environment. The US Environmental Protection Agency (EPA) ensures that each product that earns the label is independently certified to deliver the efficiency performance and savings that consumers have come to expect ...Oct 25, 2021 · However, the question is hard to answer as many factors creep while measuring power consumption. This includes the quality of the compiler, libraries used, etc. However, the researchers were able to separate energy use by CPU or DRAM utilisation, determining that the CPU consumed the majority of power, about 88.94% on average, and the remaining ... v. t. e. Computer programming is the process of performing particular computations (or more generally, accomplishing specific computing results), usually by designing and building executable computer programs. Programming involves tasks such as analysis, generating algorithms, profiling algorithms' accuracy and resource consumption, and the ... Energy-Languages Public. The complete set of tools for energy consumption analysis of programming languages, using Computer Language Benchmark Game. C 634 MIT 104 9 2 Updated on Apr 20, 2022. hunter-emanafa Public. hunter-emanafa. Depending on which factors are important for your project you will get a different ranking of possible languages for your project. Conclusion. There is no singular good way to rank programming languages. However whenever you encounter a list or ranking of programming languages just be aware of what techniques they used to create the list.What's the Most Efficient Language? It's 2025, and alien explorers from a distant planet are set to make first contact with Earth. Conveniently for us, they have a universal translator. Unfortunately, for us, they've intercepted far too many episodes of Jersey Shore and have a skewed perception of our species. So, in an effort to put humanity's ...the historical and future resource contributions of energy efficiency as compared to other energy resources. Many energy efficiency evaluations are oriented toward developing retrospective estimates of energy savings attributable to a program to demonstrate in regulatory proceedings that public or energy consumer funds were properly and effectively2. Python. Number of jobs: 1,049,041. Average annual salary: $120,700. Benefits: Python is widely regarded as a programming language that’s easy to learn, due to its simple syntax, a large library of standards and toolkits, and integration with other popular programming languages such as C and C++.Here are some notable findings: C and C++ consistently ranked among the most energy-efficient languages. Their low-level nature and direct access to system resources contribute to their efficiency ...This paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages based Energy-Languages Public. The complete set of tools for energy consumption analysis of programming languages, using Computer Language Benchmark Game. C 634 MIT 104 9 2 Updated on Apr 20, 2022. hunter-emanafa Public. hunter-emanafa. Swift. Haskell. C#. Go. Dart. JavaScript. TypeScript. “This paper presents a study of the runtime, memory usage, and energy consumption of twenty-seven well-known software languages. We monitor ...Overviews of the energy efficiency programs reviewed for this chapter are provided in Table 6-2 and 6-3. Key findings drawn from these programs include: • Energy efficiency resources are being acquired on aver­ age at about one-half the cost of the typical new power sources, and about one-third of the cost of nat­Algorithmic efficiency. In computer science, algorithmic efficiency is a property of an algorithm which relates to the amount of computational resources used by the algorithm. An algorithm must be analyzed to determine its resource usage, and the efficiency of an algorithm can be measured based on the usage of different resources. Energy-Languages Public. The complete set of tools for energy consumption analysis of programming languages, using Computer Language Benchmark Game. C 634 MIT 104 9 2 Updated on Apr 20, 2022. hunter-emanafa Public. hunter-emanafa. Energy efficiency is the use of less energy to perform the same task or produce the same result. Energy-efficient homes and buildings use less energy to heat, cool, and run appliances and electronics, and energy-efficient manufacturing facilities use less energy to produce goods. Energy efficiency is one of the easiest and most cost-effective ...Jun 3, 2018 · Motivation: Even though many studies examine the energy efficiency of hardware and embedded systems, those that investigate the energy consumption of software applications are still limited, and mostly focused on mobile applications. As modern applications become even more complex and heterogeneous a need arises for methods that can accurately assess their energy consumption. Goal: Measure the ... Python vs C++. Python is more memory efficient because of its automatic garbage collection as compared to C++ which does not support garbage collection. Python code is easy to learn, use and write as compare to C++ which is hard to understand and use because of its complex syntax. Python uses an interpreter to execute the code which makes it ...Feb 1. This is a blog post-version of the recent live talk of João Saraiva in the clean-IT openXchange series. In his live talk, Saraiva explained the methods and results of their famous study ...The big five—Java, C, C++, Python, and C#—remain on top, with their ranking undisturbed, but C has edged to within a whisper of knocking Java off the top spot. The big mover is R, a ...Feb 3, 2023 · In 2023, Java claims the No. 3 spot in terms of the most in-demand programming languages. This object-oriented language is free to use and can run on all platforms. It’s often used in application and web development, and it’s also used on the backend of big-name sites like Google, YouTube, and Amazon. If you’re just learning how to code ... For the last five years, Rust was voted as the most loved programming language by 86% of developers who took the survey. TypeScript took position two with 67.1% while Python came third after ...Such tables illustrate that languages like C, Rust, C++, Pascal, and others are the most eco-friendly and consume the least energy. However, little is shown about how these rankings were produced.For the last five years, Rust was voted as the most loved programming language by 86% of developers who took the survey. TypeScript took position two with 67.1% while Python came third after ...Java usage is widespread, with companies such as Google, Netflix, Uber, and Spotify using the language. Growing in popularity at a rate of 155%, Java is likely to retain its number one position for the foreseeable future. #2. Python. What this language is used for: Web development.Energy efficiency across programming languages: how do energy, time, and memory relate?. In Proceedings of the 10th ACM SIGPLAN International Conference on Software Language Engineering (pp. 256 ...For example, overall the C language turned out to be the fastest and also the most energy efficient. But in the benchmark test which involved scanning a DNA database for a particular genetic sequence, Rust was the most energy-efficient — while C came in third.Recent studies found that the most widely used programming languages in research, such as R and Python 95, tend to be the least energy-efficient ones 96,97, and, although it is unlikely that ...Aug 8, 2023 · The 14 Best Programming Languages to Learn in 2023. 1. Python. Python is an open-sourced, general-purpose programming language. When it comes to Python applications, you have a lot of choices, as it’s widely used for web development, scientific computing, artificial intelligence, data analysis, and more. Dec 14, 2021 · Notably, the energy consumption does vary by factors up to 80 between programming languages. On average, C and Rust programs are the most energy efficient. Java programs consume about 2 times more energy than C programs. JavaScript/TypeScript programs consume between 4 to 20 times more energy than C programs. In this ranking, we can see the “greenest” and most efficient programming languages are: C, C+, Rust, and Java, although this last one shoots the memory usage. Energy: From this table, it is ...The Department of Computer Science and Engineering (CSE) offers undergraduate and graduate programs of study in Computer Science , Computer Science and Business, and Data Science, along with research opportunities in these fields. Computer science, the core of includes the study of computer algorithms, software systems, and the effective use of ... This table is an extract from a 2017 scientific article, Energy Efficiency Across Programming Languages, and it makes sense: compiled languages like C or C++ are fast and energy efficient while ...May 5, 2021 · Using concepts from economics, efficiency can also be defined as the maximization of the benefit-to-cost ratio. Although communication can bring diverse benefits (social status, aesthetic pleasure, etc.), the main focus of most current studies on efficiency is on the successful transfer of information through a noisy communication channel, which is studied from an information theoretic ... RedMonk uses a blend of data from GitHub and Stack Overflow to come up with its semi-annual language rankings. The top 10 languages in RedMonk's latest rankings are: JavaScript. Python. Java. PHP ...This paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages basedThe TIOBE Programming Community index is an indicator of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. Popular search engines such as Google, Bing, Yahoo!, Wikipedia, Amazon, YouTube and Baidu are used to calculate ...The idea transmuted over to software programming languages—surely a faster language was a greener one, the logic went. That all changed in 2017 thanks to a group of researchers in Portugal who use what’s called the Computer Language Benchmarks Game (CLBG) as a way of ranking software languages in terms of energy efficiency.1.4.2 Programming Method(ologie)s: Advances in methods of programming also have influenced language design, of course. Refinements in thinking about flow of control led to better language constructs for selection (i.e., if statements) and loops that force the programmer to be disciplined in the use of jumps/branching (by hiding them). After two years in second place, C has finally edged out Java for the top spot. Staying in the top five, Python has swapped places with C++ to take the No. 3 position, and C# has fallen out of the ...Home Energy Assessments. A home energy assessment, also known as a home energy audit, can help you understand the whole picture of your home's energy use, comfort, and safety. An assessment can help you determine how much energy your home uses, where your home is inefficient, and which problem areas and fixes you should prioritize to save ...May 10, 2020 · Python vs C++. Python is more memory efficient because of its automatic garbage collection as compared to C++ which does not support garbage collection. Python code is easy to learn, use and write as compare to C++ which is hard to understand and use because of its complex syntax. Python uses an interpreter to execute the code which makes it ... The OECD DAC Network on Development Evaluation (EvalNet) has defined six evaluation criteria – relevance, coherence, effectiveness, efficiency, impact and sustainability – and two principles for their use. These criteria provide a normative framework used to determine the merit or worth of an intervention (policy, strategy, programme ... The Department of Computer Science and Engineering (CSE) offers undergraduate and graduate programs of study in Computer Science , Computer Science and Business, and Data Science, along with research opportunities in these fields. Computer science, the core of includes the study of computer algorithms, software systems, and the effective use of ... May 20, 2018 · For example, overall the C language turned out to be the fastest and also the most energy efficient. But in the benchmark test which involved scanning a DNA database for a particular genetic sequence, Rust was the most energy-efficient — while C came in third. A comprehensive study on the energy efficiency of Java thread-safe collections. In Proceedings of ICSME, 2016. 48. Pinto G., Soares-Neto, F., and Castor, F. Refactoring for energy efficiency: A reflection on the state of the art. In Proceedings of GREENS, 2015. 49. Ribic, H. and Liu, Y.D. Energy-efficient work-stealing language runtimes.The TIOBE Programming Community index is an indicator of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. Popular search engines such as Google, Bing, Yahoo!, Wikipedia, Amazon, YouTube and Baidu are used to calculate ...May 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. This paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages basedPython is one of the most popular programming languages in the world. Dutch software company’s programming language index for 2021 also indicates that. But is it one of the most energy-efficient ...This paper compares a large set of programming languages regarding their e ciency, including from an energetic point-of-view. Indeed, we seek to estab-lish and analyze di erent rankings for programming languages based on their energy e ciency. The goal of being able to rank programming languages based For you programming purists out there, here is an interesting white paper on the runtime energy efficiency of various programming languages. https://lnkd.in/dcMSsjKe People wonder why languages ... In a programming language, an evaluation strategy is a set of rules for evaluating expressions. The term is often used to refer to the more specific notion of a parameter-passing strategy that defines the kind of value that is passed to the function for each parameter (the binding strategy) and whether to evaluate the parameters of a function call, and if so in what order (the evaluation order).Sep 5, 2023 · The Football Power Index (FPI) is a measure of team strength that is meant to be the best predictor of a team's performance going forward for the rest of the season. FPI represents how many points ... Investment in efficiency is projected to fall 9% in 2020. Travel restrictions and lockdowns are having major impacts on long-distance and urban transport. Transport sector energy consumption is projected to fall by 10% in 2020 compared with 2019, including an 11% drop in oil consumption of around 6 million barrels a day.The lambda calculus, developed in the 1930s by Alonzo Church, is a formal system of computation built from function application. In 1937 Alan Turing proved that the lambda calculus and Turing machines are equivalent models of computation, [36] showing that the lambda calculus is Turing complete. Lambda calculus forms the basis of all functional ... Python is one of the most popular programming languages in the world. Dutch software company’s programming language index for 2021 also indicates that. But is it one of the most energy-efficient ...Investment in efficiency is projected to fall 9% in 2020. Travel restrictions and lockdowns are having major impacts on long-distance and urban transport. Transport sector energy consumption is projected to fall by 10% in 2020 compared with 2019, including an 11% drop in oil consumption of around 6 million barrels a day.This is the continuation of this 2017 paper: https://www.researchgate.net/publication/320436353_Energy_efficiency_across_programming_languages_how_do_energy_time_and_memory_relate There are new measurements and evaluations based on CLBG (as before), but now also based on Rosetta Code. The lambda calculus, developed in the 1930s by Alonzo Church, is a formal system of computation built from function application. In 1937 Alan Turing proved that the lambda calculus and Turing machines are equivalent models of computation, [36] showing that the lambda calculus is Turing complete. Lambda calculus forms the basis of all functional ...Aug 9, 2021 · RedMonk uses a blend of data from GitHub and Stack Overflow to come up with its semi-annual language rankings. The top 10 languages in RedMonk's latest rankings are: JavaScript. Python. Java. PHP ... 1. JavaScript. JavaScript is one of the world’s most popular programming languages on the web. Using JavaScript, you can build some of the most interactive websites. Also, it is one of the most demanding languages in programming as per recent reports by Stack Overflow.Sep 5, 2023 · The Football Power Index (FPI) is a measure of team strength that is meant to be the best predictor of a team's performance going forward for the rest of the season. FPI represents how many points ... Guidebook for Energy Efficiency Evaluation, Measurement & Verification (EM&V Guidebook) to help state, local, and tribal air and energy officials—as well as key stakeholders such as utility EE implementers—take steps to learn about, establish, or refine their EM&V approaches. 1.1.1. Use by Air Officials Haskell (/ ˈ h æ s k əl /) is a general-purpose, statically-typed, purely functional programming language with type inference and lazy evaluation. [26] [27] Designed for teaching, research, and industrial applications, Haskell has pioneered a number of programming language features such as type classes , which enable type-safe operator ...On IEEE Spectrum 's Fixing the Future podcast, our editors talk with the brightest minds in technology about concrete solutions to big challenges.The lambda calculus, developed in the 1930s by Alonzo Church, is a formal system of computation built from function application. In 1937 Alan Turing proved that the lambda calculus and Turing machines are equivalent models of computation, [36] showing that the lambda calculus is Turing complete. Lambda calculus forms the basis of all functional ...Jul 26, 2016 · After two years in second place, C has finally edged out Java for the top spot. Staying in the top five, Python has swapped places with C++ to take the No. 3 position, and C# has fallen out of the ... Request PDF | Ranking programming languages by energy efficiency | This paper compares a large set of programming languages regarding their efficiency, including from an energetic point-of-view.described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-Sep 12, 2018 · Depending on which factors are important for your project you will get a different ranking of possible languages for your project. Conclusion. There is no singular good way to rank programming languages. However whenever you encounter a list or ranking of programming languages just be aware of what techniques they used to create the list. described in Section 2.2) to analyze the energy efficiency of 27 languages and (almost) 270 programs. We have also extended it in order to monitor memory consumption, as well. This paper is organized as follows: Section 2 exposes the detailed steps of our methodology to measure and compare energy efficiency in software languages, followed by a pre-

Dec 22, 2022 · This table is an extract from a 2017 scientific article, Energy Efficiency Across Programming Languages, and it makes sense: compiled languages like C or C++ are fast and energy efficient while ... . Buena park honda

ranking_programming_languages_by_energy_efficiency_evaluation.ods

May 1, 2021 · Ranking programming languages by energy efficiency - ScienceDirect Science of Computer Programming Volume 205, 1 May 2021, 102609 Ranking programming languages by energy efficiency Pereira a b , Marco Couto c b , Francisco Ribeiro c b , Rua c b , Jácome Cunha c b , João Paulo Fernandes d , João Saraiva c b Add to Mendeley Request PDF | Ranking programming languages by energy efficiency | This paper compares a large set of programming languages regarding their efficiency, including from an energetic point-of-view.Ranking programming languages by energy efficiency R Pereira, M Couto, F Ribeiro, R Rua, J Cunha, JP Fernandes, J Saraiva Science of Computer Programming 205, 102609 , 2021Speed comparison of programming languages. This projects tries to compare the speed of different programming languages. In this project we don't really care about getting a precise calculation of pi. We only want to see how fast are the programming languages doing. It uses an implementation of the Leibniz formula for π to do the comparison. Aug 16, 2022 · Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ... RedMonk gives these rankings: 1 JavaScript 2 Java 3 Python 4 PHP 5 C# 6 C++ 7 CSS 8 Ruby 9 C 10 Objective-C 11 Swift 12 Shell 12 Scala 14 R 15 Go 15 Perl 17 TypeScript 18 PowerShell 19 Haskell 20 CoffeeScript 20 Lua 20 Matlab. Another ranking system, by Tiobe, ends up with a radically different top 20.Feb 21, 2022 · Datacenters make up 1% of the world's energy consumption, amounting to about 200 terawatt hours of energy a day, and the programming languages used can also impact energy consumption. Jun 3, 2018 · Motivation: Even though many studies examine the energy efficiency of hardware and embedded systems, those that investigate the energy consumption of software applications are still limited, and mostly focused on mobile applications. As modern applications become even more complex and heterogeneous a need arises for methods that can accurately assess their energy consumption. Goal: Measure the ... Nov 2, 2022 · The idea transmuted over to software programming languages—surely a faster language was a greener one, the logic went. That all changed in 2017 thanks to a group of researchers in Portugal who use what’s called the Computer Language Benchmarks Game (CLBG) as a way of ranking software languages in terms of energy efficiency. Our default ranking is weighted toward the interests of an IEEE member, and looking at the top entries, we see that Python has held onto its comfortable lead, with Java and C once again coming in ...Jul 22, 2020 · Our default ranking is weighted toward the interests of an IEEE member, and looking at the top entries, we see that Python has held onto its comfortable lead, with Java and C once again coming in ... A programming language is a system of notation for writing computer programs. [1] Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language . The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning), which ...Aug 16, 2022 · Broad adoption of Rust could reduce energy consumption of compute demands by a conservatively estimated 50%, Amazon wrote. Rust delivers the energy efficiency of the C programming language ... Jun 3, 2018 · Motivation: Even though many studies examine the energy efficiency of hardware and embedded systems, those that investigate the energy consumption of software applications are still limited, and mostly focused on mobile applications. As modern applications become even more complex and heterogeneous a need arises for methods that can accurately assess their energy consumption. Goal: Measure the ... May 1, 2021 · Ultimately, it is based on such comparisons that we propose a series of efficiency rankings, based on single and multiple criteria. Our results show interesting findings, such as how slower/faster languages can consume less/more energy, and how memory usage influences energy consumption. Jul 4, 2021 · Using the calculations from the previous article, we can estimate the yearly carbon impact: C#/WPF is around .00031 mtCO2e per year for that population. Python/Kiva is around .00087 mtCO2e per ... Python is a relatively new programming language, first introduced in 1989, that has surged in popularity with the emergence of new fields of application. It is an interpreted language that supports automatic memory management and object-oriented programming. It heavily prioritizes developer experience.Ranking. In this ranking, we can see the “greenest” and most efficient languages are: C, C+, Rust, and Java, although this last one shoots the memory usage. From the Paper: Normalized global ....

Popular Topics