Our Mission. Real time definition is - the actual time during which something takes place. Provides real-time air pollution data in an understandable, visual format, information about the public health and environmental effects of air pollution, information about ways in which the public can protect their health, and actions they can take to reduce pollution. Binary, Unilevel, and Matrix. Learn Big Data Applications: Real-Time Streaming from Yandex. You can start building your app with free API keys at the Azure Cognitive Services sign-up page. c++ - QCustomPlot Interact with a single point on a graph; c++ - QCustomplot - Hide / Show selected graph; c++ - In QCustomPlot how do you draw both a line graph and bar chart for the same data in realtime? c++ - Qt5 QCustomPlot. Example Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For exchanges that do not offer a free trial, real-time data for the remainder of the month may be activated by paying the exchange fees. 4 Technology, high speed data networks and consumer behavior are among some of the factors fueling. h” and a source “qcustomplot. Here's a quick example of how real time streaming in Power BI works. TogetherJS is a free, open source JavaScript library by Mozilla that adds collaboration features and tools to your website. In a Real-Time System the correctness of the system behavior depends not only on the logical results of the computations, but also on the physical instant at which these results are produced. Tourists and Visitors. Tools, SDKs and Resources you need to optimize your CPU development. I can't really understand how to get the real time plot demo to work. Real time (media), where a depiction of events takes the same times as the events, without compression "Fox Real Time", a headline update segment on the Fox News Live television program. The REAL ID Act, passed by Congress in 2005, enacted the 9/11 Commission’s recommendation that the Federal Government “set standards for the issuance of sources of identification, such as driver's licenses. QCustomPlot is an easy to use plotting widget for Qt. Use the AWS CLI to create a VPC with an associated IPv6 CIDR block and a public subnet and a private subnet, each with an associated IPv6 CIDR block. Save time & money by riding together with Waze Carpool. Although this form is called "real", you are usually imagining or guessing about the future. Find sentence examples at Your Dictionary. pro file HEADERS section was somehow deleted. In this version, the final velocity is allowed to change. The next time you are cold, you can put the practice of heat conduction to work for yourself. 1 Luigi's original signsrch description: "Tool for searching signatures inside files, extremely useful as help in reversing jobs like figuring or having an initial idea of what encryption/- compression algorithm is used for a proprietary protocol or file. Author(s) Dev Ashish: Note that the same logic applies to most Domain Aggregate Functions (DMax, DMin etc. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Awesome Examples of PowToon Videos. This example demonstrates how to generate a simple Android Candlestick chart in code. While running I found that the process consumes 25% of my intel quad core 3. Partnership with Manufacturing Engineers to help ensure efficient design and production of your parts. IANA-managed Reserved Domains. It has no further dependencies and is well documented. Definition of kid written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. 5 because it is half of a day). turbo, supercharger) or individual throttle bodies. Real-time object detection with deep learning and OpenCV. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. Take time to know your options. realestate, available to all. Is there a way to QCustomPlot can be use to plot dynamically?. Real life examples where stacks are used:-a) Processing of procedure calls and their termination. A real WebQuest is wrapped around a doable and interesting task that is ideally a scaled down version of things that adults do as citizens or workers. The following links go to actual real-life templates for the most requested business-to-business letters: Appreciation letter - thanking a conference speaker. Most of the time we used to hear these two main OOP's concepts i. The real number system evolved over time by expanding the notion of what we mean by the word “number. qcustomplot free download. Fraps is a universal Windows application that can be used with games using DirectX or OpenGL graphic technology. 1034 for 64bit Vista/7/8/10 Other downloads. cpp" which needs to be included in the project to be able to use it. Inspect this graph of. Note that you don’t need parentheses around conditions in Go,. I am approaching this task with an eye on call center monitoring as an example of how the principles and practices that I advocate can be applied to solve a real-world challenge. An arsonist destroyed my home. Using this data, we generate highly precise large-radius isochrone maps. Experiencing a qualifying life event allows you to apply for health insurance during a Special Enrollment Period. You have found this website because you are ready at inner levels. 1 The graphic shows the twenty-four hourly PJM-reported locational marginal prices (LMP) at Newark Bay for every day in February 2013. A common real world example of this is distance, speed and acceleration: Example: A bike race! You are cruising along in a bike race, going a steady 10 m every second. 80/20 Schedules. When the applet starts up you will see an animated schematic of a simple LRC circuit. In Example 2, the value of Sarah's car decreased from year to year. Real-time coverage of the global economy, including in-depth analysis of more than 300 economic indicators, topics and long-term trends, plus macro forecasts and outlooks. We know your audience. 20 years forward to that incident, researchers quote that by 2020 the world will be using nearly 50 billion of devices that are governed by Internet of things. In this Article, you will learn about delegates with a real time example in C#. Kinds of Sentences. Quotes delayed at least 15 minutes. We are providing you with the choice either to obtain a REAL ID card or to keep a standard card. As the host moves between files, collaborators follow along with the active tab automatically. I am approaching this task with an eye on call center monitoring as an example of how the principles and practices that I advocate can be applied to solve a real-world challenge. One can plot various types of graphs (ex. Select a corridor by choosing a direction of travel in the right column. The allusion does not give much detail about the reference. a plottable) or not. ReconstructMe’s usage concept is similar to that of an ordinary video camera – simply move around the object to be modelled in 3D. 2 weeks each. Real-time polymerase chain reaction, providing quantitative results during the process; Arts and entertainment Film, television and radio. com Gene-Quantification. QCustomPlot - The build of charts with time. Current Time (World Clock) and online and printable Calendars for countries worldwide. Slippery Slope is a specific type of logical fallacy. Earthquake Notification Service. Tweet Earthquake Dispatch (TED) offers two Twitter accounts. Fischmeister 2 What is an Operating System? A program that acts as an intermediary between a user of a computer and the computer hardware Operating system goals: oExecute user programs and make solving user problems easier. I've followed all steps of the qcustomplot example about realtime plots, I've created a main. Real-time data refers to data that is presented as it is acquired. If the argument is not a null pointer, the return value is the same as the one stored in the location pointed by argument timer. com can help you reach your investment goals. Safety level of traffic: Using the real-time processing of big data and predictive analysis to identify accident-prone areas can help reduce accidents and increase the safety level of traffic. For example, in many countries across Africa, traditional ways of exchanging value are costly and can be highly inefficient. Although I would recommend matplolib for almost all scientific plotting, real time plotting with intensive computations are a bit different. Our sample survey examples—or customizable survey templates that span every use case, can allow you to overcome writer’s block and help you identify the questions you want to ask the most. Erowid is a non-profit educational & harm-reduction resource with 60 thousand pages of online information about psychoactive drugs, plants, chemicals, and technologies including entheogens, psychedelics, new psychoactive substances, research chemicals, stimulants, depressants and pharmaceuticals. Features include web design checklists and resources on good web design. A line graph is useful for displaying data or information that changes continuously over time. Real Estate Postcards that actually work. "By articulating up-to-the-second rider information to viewers around the world, we are helping to enrich the TV experience. Reviewing examples of active and passive voice will make it easier to understand the difference. Z = 2+3i; X = real(Z) A modified version of this example exists on your. This example lets you move items between lists. com provides job search resources including job fairs, online degree programs, career advice, and work at home jobs. However, unlike Enterprise SOA, Real-Time SOA must handle demanding real-time systems, connecting them with each other and with enterprise technologies. Example 1: Let's compare it with a real-world example: You go to a restaurant you sit at your table and you choose that you need ABC. cmake), it is likely that you have to manually set the include directory and used libraries for a certain package. Cloud-Based Software. If it helps to organize your paper, you can number your examples at first and then go back over the paper and provide other transitions (another advantage of word-processing). These compelling lessons and projects promote problem-based learning, collaboration, higher order thinking skills, and critical analysis through the integration of science, technology, engineering, mathematics and other core subjects. Most of these examples are using the automation integration and other built-in automation related and organization integrations available. An arsonist destroyed my home. My sister has six fingers on her left hand. You can also put the result clause first without using a comma between the clauses. Best Practices for Real-Time Data Warehousing 7 -In real time (push mode) as the changes occur—for example, when a product is changed in the enterprise resource planning (ERP) system, immediately updates the on-line catalog Processing the Changes Oracle Data Integrator employs a powerful declarative design approach, Extract-Load,. com® is here to help. Let's say we wanted to calculate the standard deviation for the amounts of gold coins pirates on a pirate ship have. What parents should know; Myths vs. If you find that you easily understand the example, you can go on to new material. This plotting library focuses on making good looking, publication quality 2D plots, graphs and charts, as well as offering high performance for realtime visualization applications. i think Qwt is much better choice than QCustomPlot,, but lack documentation is big issue. It has no further dependencies and is well documented. PubNub makes it easy to connect and consume massive streams of data and deliver usable information to any number of subscribers. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more. But if you think you. Real-time definition, of or relating to applications in which the computer must respond as rapidly as required by the user or necessitated by the process being controlled. com — to get the current release. Real-time and historical tracking, stolen vehicle recovery and trailer tracking are our key security offerings, designed to enhance personal safety and security, as well as security for commercial fleets. Real-time data refers to data that is presented as it is acquired. Real-time is a class of data processing that responds to events and demands as they occur. This is an electronic circuit simulator. With ProjectManager. Most of the time we used to hear these two main OOP's concepts i. As of July 1, 2019, TRAILS-9 is no longer an active site. TIME may receive compensation for some links to products and services on this website. Home - The Academy of American Poets is the largest membership-based nonprofit organization fostering an appreciation for contemporary poetry and supporting American poets. That is, the particles that make up the suspension separate from the medium in which they are suspended and fall to the bottom of a container. Example: How did you find the card?. All rights reserved. All rights reserved. I am sixteen years old. Use mutex where you want to allow a piece of code (normally called critical section) to be executed by one thread at a time. You can assemble your own personalized dashboard to track currency pairs. Bug 1128394 - Review Request: qcustomplot - Qt widget for plotting and data visualization. Definition of real-time noun in Oxford Advanced Learner's Dictionary. Time series analysis accounts for the fact that data points taken over time may have an internal structure (such as autocorrelation, trend or seasonal variation) that should be accounted for. I just saw this challenge to find real life examples of agile development by Tom Perry. TRAILS-9 not active, content moved. When you need further help please ask!. Developing time management skills is a journey that may begin with this Guide, but needs practice and other guidance along the way. Large chunks of data are stream processed to enable the organizations to react to any fraudulent activity and potential threats, as well as to boost. org are maintained for documentation purposes. , Suite 230, Jefferson City, MO 65109 were accepted from July 1 through September 15, 2017, to take specific comments on any of the real estate rules. Let’s talk sweets. Speed Up Your Product Design. The current calendar time as a time_t object. We asked them the same questions and gave them the opportunity to make brief statements. © 2018 Safe Software Inc | LegalLegal. Please refresh the page for the most up-to-date information. Free online sql formatting tool, beautify sql code instantly for SQL Server, Oracle, DB2, MySQL, Sybase, Access and MDX. Rental property can be a great source of income, or it can become a huge headache. graph will lag after adding 100k points and will lag even more when few series are overlapped. While running I found that the process consumes 25% of my intel quad core 3. QCustomPlot is a Qt C++ widget for plotting and data visualization. We have imbedded the tutorial with many self-tests. Developing time management skills is a journey that may begin with this Guide, but needs practice and other guidance along the way. Also see sample creative and style ideas to raise your forms to the next level. block parallel programming for real-time applications on multi-core processors a dissertation submitted to the department of electrical engineering and the committee on graduate studies of stanford university in partial fulfillment of the requirements for the degree of doctor of philosophy david black-scha er april 2008. Not even Hugo Chavez of Venezuela, Iran, or leftist media will devote time and resources to expose the lies. Ofrezco mis servicios como desarrollador de software. All rights reserved. When you need further help please ask!. Grow new revenue by reliably classifying text messages. Rio de Janeiro time could be +1, +2 or +3 hours ahead of New York time depending on the time of the year. There are several ways to insert the current date and time in a cell. For example 15 minutes (¼ hour) equals. The company, for example, works with Deloitte’s tax division to monitor how tax codes are evolving and likely to move over time: the firm used to keep its own clients up to date verbally on. Though he was once. Travelers should plan for delays, especially during the morning and afternoon commutes, and consider alternate routes through the area. The columnstore index maintains a copy of the data, so the OLTP and analytics workloads run against separate copies of the data. Quest Diagnostics empowers people to take action to improve health outcomes. The argument may be a floating point number to indicate a more precise sleep time. QCustomPlot : does not have that much performance when it comes to adding real time data. Net's commodities coverage is widely used. eMLS is Major League Soccer’s esports league that launched in 2018. It’s a time delay between the request and its actual completion. Awesome Examples of PowToon Videos. com — to get the current release. Real time definition is - the actual time during which something takes place. line graph, bar graph) with flexible parameters. Use the Free text to speech online Translator (translate English to English, to Spanish, to French, to Italian & over 25 languages)! Using Google translator, SitePal avatars translate to any language (Free), converting text to speech with naturally speaking voices. User Name. Graph c) has two real roots. Table of Contents A motivating example Real-time computing Requirements and best practices ROS 2 design Comparison with ROS 1 and ros_control Demo and results. Nancy Weaver, who serves as AAA Ohio's senior manager of e-business, leverages Marketing Cloud and Liveclicker to achieve key metrics across her lifecycle email campaigns. Alexandria Real Estate Equities, Inc. Martin Luther King, Jr. While running I found that the process consumes 25% of my intel quad core 3. If you're using npm and a bundler like webpack, browserify or rollup, you can install dygraphs via: npm install --save dygraphs. drug-rehab-maine. ScriptCommunicator / serial terminal ScriptCommunicator is a scriptable cross-platform data terminal which supports serial port (RS232, U qcustomplot free download - SourceForge. Onshape is the only product development platform that unites CAD, data management, collaboration tools and real-time analytics. iClone is the fastest real-time 3D animation software in the industry, helping you easily produce professional animations for films, previz, animation, video games, content development, education and art. QCustomPlot is a Qt C++ widget for plotting and data visualization. However, in autonomous vehicles, we’re talking about the safety of people. hyperbole definition: The definition of hyperbole is a description that is exaggerated for emphasis. Speed Up Your Product Design. This time, main calls this function several times, demonstrating more possible ways in which a function can be called. com can help you reach your investment goals. But thats a little bit tricky and needs more time when you have no idea about QT. Costa Rica is a great place to visit. For, 13· 13 is a square number. com now to see the best up-to-date Q Custom Plot content for Russia and also check out these interesting facts you probably never knew about qcustomplot. For example 15 minutes (¼ hour) equals. As a result, doing business can be unnecessarily stressful and out of reach for many. QCustomPlot is a Qt C++ widget for plotting. It works by declaring a function to the WIN32 API sndPlaySound. Experience this tool's updated look and features by visiting the Lexile & Quantile Hub - new home to all our Lexile and Quantile tools. these are the things program needs to do 1. Here is a screenshot from my simulation:. h” and a source “qcustomplot. The other way is using c++ and writing for example a rviz plugin with QT. When the JACK callback is called with new audio data, the data is copied to the DSP input buffer and the FFT operation is executed. Summary: Review Request: qcustomplot real time, real-time 4 packages. Luckily, the First Time Home Buyer Guide from realtor. The Guidelines link to examples of common errors, and demonstrate techniques that your instructors will love!. pro file should look something like this: Note: (1) If you are using Qt version 5. “Instead of going with a fully custom solution for thousands and thousands of dollars, I found that everything we needed was in the Placester platform. Hahn performed experiments with another chemist Fritz Strassman, while Meitner collaborated on the theoretical aspects with her nephew, Otto Frisch. MAP | Find out if you are under cyber-attack here. Good examples are e-commerce order processing, online booking and reservations, and credit card real-time fraud detection. System which is time dependent that is to process the input data and give output in given time, such systems are called real time systems. Then read the Tutorial to learn how to use it, or just play with dygraphs on jsFiddle. Realtime Trains provides live realtime running information for the Great British railway network using open data. You can use QCPGraph::data(). Dua tahun lalu saya merasa bingung dengan pengganti di Linux untuk TeeChart di Windows. Non Real-Time Systems? • Yes, those exist! • However, in most cases the (soft) real-time aspect may be constructed (e. 70)(81) = 79. Get the top real estate domains,. Physical characteristics are what you see with the naked eye. sh would send me an email immediately with that file attached. Example Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. No longer are we required to wait to make replenishment decisions. MIKIDS is an educational site with original material and reviewed links. For exchanges that do not offer a free trial, real-time data for the remainder of the month may be activated by paying the exchange fees. Saya senang sekali. The data in the boxes may be changed, and the calculation will be done when you click outside the box, subject to the constraints described. This global team oversees all of Fortinet's security services, delivering real-time, comprehensive security updates. Real-Time Solar Wind data refers to data from any spacecraft located upwind of Earth, typically orbiting the L1 Lagrange point, that is being tracked by the Real-Time Solar Wind Network of tracking stations. Purchase U. SURBL Data Feeds offer higher performance for professional users through faster updates and resulting fresher data. This technique can be enforced by varying levels of precision. Current Time (World Clock) and online and printable Calendars for countries worldwide. it updates at the speed of updates on twitter in realtime, and thus contains rapidly updating visuals that may possibly cause problems for those sensitive to such things?. Why? There are a lot of reasons, but my hunch is that people were just not prepared for the REAL Costa Rica There is a vast difference between the "tourist" Costa Rica and the one in which you will live. The main idea behind this work is to exploit the best from both worlds and propose a monocular SLAM approach that fuses together depth prediction via deep net-works and direct monocular depth estimation so to yield a dense scene reconstruction that is at the same time un-. Quest Diagnostics empowers people to take action to improve health outcomes. Let's say we wanted to calculate the standard deviation for the amounts of gold coins pirates on a pirate ship have. block parallel programming for real-time applications on multi-core processors a dissertation submitted to the department of electrical engineering and the committee on graduate studies of stanford university in partial fulfillment of the requirements for the degree of doctor of philosophy david black-scha er april 2008. I'm looking for plotting lib to draw real time data graph for a Qt program. There are many different types of logical fallacy. iClone is the fastest real-time 3D animation software in the industry, helping you easily produce professional animations for films, previz, animation, video games, content development, education and art. The following example implements a timer. 1 Feb 2019. When you book a ticket and select a seat, that booking is made right away, and nobody else can get that same. When you need further help please ask!. Cloud-Based Software. CSI ACE Insight performs real-time content analysis, and then displays a report of its findings. Find descriptive alternatives for real time. Use the examples below as inspiration for spiffing up your own LinkedIn profile. Note: Please use this button to report only Software related issues. At Beaches, we understand that your love story is unique and special and your wedding should be, too. We work hard to keep our advertising relevant and unobtrusive to create a great experience. A good example of a real-time processing system would be airline ticket reservations. Though he was once. But I really don't have any clue about what to do with the "realtimeDataSlot()". QCustomPlot Library has the ability to charting the scale of time, which is useful in analyzing the data, which change over time. This is the basis for synoptic meteorology, to take all measurements at the same time to produce a snapshot of the state of the atmosphere. 2 days ago · Speaking of 5G, we can’t skip its main advantage – reduced latency. Real-time definition, of or relating to applications in which the computer must respond as rapidly as required by the user or necessitated by the process being controlled. It just contains a header named "qcustomplot. These sentences are based on facts, and they are used to make statements about the real world, and about particular situations. Instead of creating a marketing plan in advance and executing it according to a fixed schedule, real time marketing is creating a strategy. In other words, I can do the tests in the lab, and send anyone my data on real time without any clicking and logging into my email. THE WORLD CLOCK - This minute 250 babies will be born, 100 people will die, 20 violent crimes will be committed, and the US debt will climb $1 million. If that API isn't real-time then it's saucer separation time! There are real world examples of APIs that have to be real-time because the associated data has a time-factor and constraint between the event occurring (e. Real time (media), where a depiction of events takes the same times as the events, without compression "Fox Real Time", a headline update segment on the Fox News Live television program. CSI ACE Insight performs real-time content analysis, and then displays a report of its findings. A logical fallacy is a flawed argument. – Google collaborates with a new company, care. The Demo is based on QT and uses QCustomPlot for plotting. Slippery slope is one example of a fallacy. Current time and world time zones and time map with current time around the world and countries operating Daylight Savings Time sunclock map shows what part of the world is in darkness and what part is in daylight detailed time zone maps of the USA time Europe time Australia time Canada time Middle-East time Oceania time Russia time zone Interactive Time Map for time in relation to other. 1 hour ago · Card and Board templates — Templates can now be created for cards within a Trello board, or of an entire board, making frequently used patterns easily and quickly available. Let me stop you right there. It’s nutty. How to use real time in a sentence. However, performing analytics on real-time and historical data, processing queries, delivering results and feeding downstream applications requires an immediacy and agility that is often difficult to achieve. Conroy is challenging the incumbent to become mayor of New Rochelle. General: DLookup Usage Samples. h and qcustomplot. The timer adds deltaTime each frame. Start by downloading dygraphs. The Maya calendar system records a series of recurring cycles of time based on the movements of the Sun, Moon, and planets. If that API isn't real-time then it's saucer separation time! There are real world examples of APIs that have to be real-time because the associated data has a time-factor and constraint between the event occurring (e. Whether you are home buying, selling a home or need help securing a Home Mortgage, we’ve got you covered. As part of the UW-Madison Space Science and Engineering Center, CIMSS conducts cutting-edge research while fulfilling its three-part mission:. It prompts you for header information and a filename to post. The question was asked me interview. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. This feature is not available right now. Visit — www. If you want to help your children grow their minds and. 1 Feb 2019. Don't try to orchestrate different callbacks to keep local and remote changes in sync. ) Normal usage. hey @VRonin im currently working on a test with QAbstractTableModel. TRAILS-9 not active, content moved. ATTENTION: ALL Real Estate licensees who have completed the Mandatory 3-Hour course in 2019, who are attempting to renew their licenses in October, November, or December of 2019, WILL NEED TO CONTACT THE DIVISION at (801) 530-6747. These domains may be used as illustrative. Read the latest stories about Health on Time. Qt/C++ - Lesson 031. com — to get the current release. Django Channels Example. You can start building your app with free API keys at the Azure Cognitive Services sign-up page. It has no further dependencies and is well documented. Contacto: carlosduarte. Explore math with desmos. That will help you understand the concepts of polymorphism in c# with real time example for fresher as well as experienced people. So what is "Real-Time SOA"? Ideally, it is an architecture that, like Enterprise SOA, can effectively integrate large systems of systems. 2 days ago · Three Republicans and three Democrats are vying for the three at-large seats on Fort Wayne City Council. To illustrate the relative ease with which real-time can be added to any. c++ - QCustomPlot/Widget doesn't show graph/update up vote 2 down vote favorite 1 I am using QSplitter where the right pane is QCustomPlot which shows a graph when I click in the left pane (a tree view). The concept of real-time, all the time completely turns these batch-oriented processes on their head. Using Qt's "Signal-Slot" mechanism (click here to know more), these graphs can also be plotted in a real-time scenario. " For example, the graphics in a 3D action game are rendered in real-time by the computer's video card. This minimizes the performance impact of both workloads running at the same time. If this resonates with you, it is because you volunteered to take embodiment at this time in order to give Jesus the victory of seeing a critical mass of people follow his example and take this planet into a golden age. Improve audience engagement, inform editorial decisions, and increase readership. Most of these examples are using the automation integration and other built-in automation related and organization integrations available. QCustomPlot is a Qt C++ widget for plotting and data visualization. College football 150 For Nevada coach Jay Norvell, the journey took way too long. This task force, which Fifth Third Bank serves on, is working to develop specific standards by 2021, which will be needed to make real-time or near real-time payments a reality in this country. – Google collaborates with a new company, care. Upon each connection, the callback is fired, but if there is no work to be done, Node. 3 Possible Ways for Real-Time Video Streaming Between Camera and Android Device In the Internet of Things world, an interesting homemade robot application is to build a robot able to send real-time video images on an Android device. For real-time audio input, a JACK (Jack Audio Connection Kit) client has been created. This example also demonstrates a block quote. Who nailed their LinkedIn profile headline?. a plottable) or not. (January 15, 1929 – April 4, 1968), was an American clergyman, activist and prominent leader in the African-American civil rights movement.