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Ajax on RailsIn a few short months, Ajax has moved from an obscure and rarely used technology to the hottest thing since sliced bread.
This article introduces the incredibly easy-to-use Ajax support that is part of the Ruby on Rails web application framework. This is not a step-by-step tutorial, and I assume that you know a little bit about how to organize and construct a Rails web application. If you need a quick refresher, check out Rolling with Ruby on Rails, Part 1 and Part 2.
Just in case you've been stranded on a faraway island for most of the year, here's the history of Ajax in 60 seconds or less. In the beginning, there was the World Wide Web. Compared with desktop applications, web applications were slow and clunky. People liked web applications anyway because they were conveniently available from anywhere, on any computer that had a browser. Then Microsoft created XMLHttpRequest in Internet Explorer 5, which let browser-side JavaScript communicate with the web server in the background without requiring the browser to display a new web page. That made it possible to develop more fluid and responsive web applications. Mozilla soon implemented XMLHttpRequest in its browsers, as did Apple (in the Safari browser) and Opera.
XMLHttpRequest must have been one of the Web's best kept secrets. Since its debut in 1998, few sites have used it at all, and most developers, if they even knew about it, never used it. Google started to change that when it released a series of high-profile webA Quick, Painless Tutorial on the Python LanguageWhat Are Scripting Languages?
Languages like C and C++ allow a programmer to write code at a very detailed level which has good execution speed (especially in the case of C). But in most applications, execution speed is not important, and in many cases one would prefer to write at a higher level. For example, for text-manipulation applications, the basic unit in C/C++ is a character, while for languages like Perl and Python the basic units are lines of text and words within lines. One can work with lines and words in C/C++, but one must go to greater effort to accomplish the same thing.
The term scripting language has never been formally defined, but here are the typical characteristics:
• Used often for system administration, Web programming, text processing, etc.
• Very casual with regard to typing of variables, e.g. little or no distinction between integer, floating-point or string variables. Arrays can mix elements of different “types,” such as integers and strings. Functions can return nonscalars, e.g. arrays. Nonscalars can be used as loop indexes. Etc.
• Lots of high-level operations intrinsic to the language, e.g. string concatenation and stack push/pop.
• Interpreted, rather than being compiled to the instruction set of the host machine
Why Python?
The first really popular scripting language was Perl. It is still in wide usage today, but the languages with momentum are Python and the Python-like Ruby. Many people, including me, greatly prefer Python to Perl, as it is much cleaner and more elegant. Python is very popular among the developersGeneric HTML Form Processor: PHP script to save Web-collected data into a MySQL databaseThe customizable PHP script Generic HTML Form Processor is intended to assist researchers and students in quickly setting up surveys and experiments that can be administered via the Web. This script relieves researchers from the burdens of writing new cGi scripts and building databases for each Web study. Generic HTML Form Processor processes any syntactically correct HTML form input and saves it into a dynamically created open-source database. We describe five modes for usage of the script that allow increasing functionality but require increasing levels of knowledge of PHP and Web servers: The first two modes require no previous knowledge, and the fifth requires PHP programming expertise. use of Generic HTML Form Processor is free for academic purposes, and its Web address is www.goeritz.net/brmic.
There are other advantages of Web research. On the Web, people can be tested at any time and place, laboratory rooms or physically present experimenters are not necessary (so experimenter effects remain constant), and automated data handling reduces both the labor and error of data coding and entry (Birnbaum & Reips, 2005; Göritz & Schumacher, 2000). In addition, the Web method allows one to collect large samples inexpensively, which makes it possible to draw clear conclusions and to check their generality to different subsamples tested (Birnbaum, 1999; Reips, 2002).
An example of an HTML Web form is given in Birnbaum (2000). Such an HTML page can be placed on a server, where the participant can view it and fill in answers by typing in information and clicking onMicrosoft Exchange ConnectorThe Microsoft Exchange connector allows users to index Microsoft Exchange content. By using a unique special administrative account, all the mailboxes and public folders can be indexed.
Features
The Microsoft Exchange connector can be used to index mailboxes. It allows Coveo Enterprise Search (CES) to crawl and index the content of a Microsoft Exchange Server 2003 or 2007 installation. Furthermore, it offers a more efficient search than Microsoft Exchange’s built-in search components.
Feature List
The following details the features available in the Microsoft Exchange connector:
- Mailbox indexing
- Public Folder indexing
- Security: CES indexes security by combining Microsoft Exchange permissions set in Microsoft Exchange by users and Active Directory by administrators.
- Live indexing: Allows the connector to periodically query Microsoft Exchange for the latest edits, keeping the index content up to date.
- The Microsoft Exchange connector collects a maximum of metadata for emails, contacts, tasks and calendars.
- The Microsoft Exchange connector supports form-based authentication, which should be used when the OWA server is configured to use it. Two types of form-based authentications are supported:
- Standard Exchange Form Based Authentication
- ISA Server Form Based Authentication
Download pdf Microsoft Exchange ConnectorIMS, SDP and Web 2.0 : Where are the services ?This paper presents the results of a study on the leverage of web 2.0 technology and open business models to expand service providers’ IMS and SDP (Service Delivery Platform) and offer new services and service composition capabilities for existing business partners such as MVNO, ISV, ASPs but also sophisticated end users, so called “prosumers”. We have collected the requirements from different users and customers which were all converging to an expansion of existing environment to offer a much more ‘internet’ like service offering : simple APIs, mix of content and communication capabilities, graphical composition tools, open portal, widgets, developer communities, easy to share, try and comment set of services, etc. Based on that, we did an evaluation of different tools and technology and defined an architecture that could meet these expectations while leveraging existing IMS-SDP environments and built a proof of concept.
From Walled Garden to Long Tail …
Today most service providers offer a mix of ‘walled garden’ services such as voice and SMS, which are developed/hosted/sold by the service provider, and ‘partner services’ which are co-developed and sold via some cross-selling models between the service provider and some business partners. As the market evolves with, on one side, more demand on the consumer side for personalized content and internet integration, and on the other side, demand for more flexible and dynamic business relationships, service providers need to explore new technologies and new business models to basically open up their infrastructure to enable more innovation and more usage of the underlyingImporting Data from Microsoft Access into LISTSERV MaestroThe purpose of this white paper is to demonstrate how to use the ODBC driver plugin with Microsoft® Access® database files. This allows LISTSERV® Maestro to use Access databases as a data source, making it possible to have LISTSERV Maestro extract data directly from an Access database [3].
The ODBC driver plugin is a special database plugin that allows recipient information or drop-in content to be pulled from any ODBC data source. The ODBC driver plugin can be used in the recipient wizard with the “Select Recipients From a Database” recipient type [1]. It can also be used in the target group wizard with the “LISTSERV Maestro Retrieves Recipients from Database” target group type [3] to retrieve recipient information from an ODBC data source. Additionally, it can be used to create drop-in content elements by retrieving content information from a database [1]. ODBC drivers exist for many applications [5], making a wide range of data available to LISTSERV Maestro for recipient retrieval or drop-in content definition.
By connecting directly to an Access database, you can use any standard SQL statement to extract data. You can even use the Access tools and wizards for constructing your query and testing it within Access. Then, by switching from Design View to SQL View, you can copy the SQL statement from Access and paste it in to LISTSERV Maestro.
Download pdf Importing Data from Microsoft Access into LISTSERV MaestroAn Optimal Load Balancing Method for the Web-Server Cluster Basedweb-server cluster performance without upgrading hard-. ware components or channel bandwidths. To implement the. intelligent load balancing, we proposed the
DownloadMobile Streaming Production Deployment Guide ManualTips for Live Webcasts 5 Preparation 5 Lighting and sound 5 Marketing your event on the web 5 A Good Beginning 5 Smooth transitions between program segments 6 Incorporate a variety of media 6 Options for Interactivity 6 Lighting for Video 7 Preparation 7 General Issues 7 Studio Lighting 8 Lighting in Field Production 9 White Balance 10 Audio Production 11 Preparation 11 Using an external microphone 11 Choosing the right microphone 12 Headphones are a must 13 Using Multiple Cameras and Microphones 14 Preparation 14 Low cost audio mixers
15 Multiple Video Sources 16 DV Cameras and DV Converters 16 Camera Tips 17 Preparation 17 Monitor lighting exposure through the viewfinder 17 Use a tripod for stability 18 Use Auto Focus feature judiciously 18 Use Auto Exposure feature carefully 18 Compression Workflow 20 Overview 20 Encoder/Decoders (a.k.a. codecs) 21 Directions 22 MPEG-4 Compression with QuickTime Pro 6.x 23 Preparation 23 Directions 24 Creating Reference Movies with MakeRefMovie 31 Preparation 31 Directions 32 Using QTSS Publisher version 1.0 36 Preparation 36 Logging on with QTSS Publisher 37 Uploading media files with QTSS Publisher 37 Media Settings 38 Link Settings 40 Managing Playlists 41 Making Web Pages 42 MPEG-4 Compression with QuickTime 7.x 43 Preparation 43 Directions 44 Using QTSS Publisher 2.0 51 Preparation 51 QTSS Publisher 2.0 overview 51 QTSS Publisher 2.0 Workflow 51 Live Presentations with Wirecast 2.0 56 Preparation 56 Live Presentation Overview 57 Wirecast Document Configuration 57
Download pdf Mobile Streaming Production Deployment Guide ManualVW Passat B5 A-Pillar Gauge Pod Installation InstructionsSome 2001 and later Volkswagen vehicles use A-pillar mount airbags. A-pillar pods should NOT be used on these vehicles.
1. Remove a-pillar trim by locating upper seam and prying outward. Use clean hands and avoid using any type of tool to pry. Once a small opening is created at the pillar top, use some force to release the 4 plastic mounting clips. With a-pillar cover pulled out, lift upwards and remove completely.
2. On a clean surface, lay out gauge pod and a-pillar trim. There will be a faint imprint on the a-pillar trim outlining the top of the dashboard. The bottom (plastic) edge of the gauge pod should be positioned to follow this line and rest on the dashboard. The dashed line in the drawing below represents the top of the dashboard.
3. Line edges up and wrap the fabric tabs over the a-pillar trim. Use sharp scissors to precisely notch the tabs where any protrusions of the pillar trim exist. Use masking tape to secure fabric tabs during test fitment. With gauge pod positioned, test fit the assembled gauge pod and a-pillar trim to check fitment. Adjust as required.
4. Once you have the pod positioned correctly, begin to mark the a-pillar trim for drilling.* See diagrams below for approximate positioning of the hole to be drilled. The hole should be at least 3/8” in diameter to accommodate tubing and wiring. The position of the hole should be such that the tubing can easily route from the gauge without any sharp bends.PC News Weekly MagazineThis EnGenius Outdoor Wireless Client Bridge device provides a wireless network signal outdoors and it wins our Editor’s Choice Award for ruggedness and value Keep on top of the intrusion attempts made on your network with NFR Security Sentivist that receives our Editor’s Choice Award for performance and value hp pavilion dv special edition HP Pavilion dv8000z Notebook
This HP notebook sports a 17 inch widescreen display with Dolby Digital 5.1 audio and it receives our Editor’s Choice Award for functionality and value ASUS W5F Notebook Asus sells their own notebook with a Duo Core processor that wins our Editor’s Choice Award for performance and value
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