سايت‌هاي علمي ، آموزشي و فرهنگي

تازه هاي پزشکي

• نقش پيوند مغز استخوان در کمک به بيماران قلبي
  نتايج تازه مطالعات دانشمندان آلماني نشان مي‌دهد که سلول‌هاي مغز استخوان مي‌تواند دردرمان نارسايي قلبي کمک کننده باشد.
  
• کاهش تولد در امريکا، علت چيست؟
  در حدود 4/1 ميليون نوزاد در سال 2009 در امريکا متولد شده‌اند، درحالي که اين ميزان نسبت به تولد‌هاي سال 2008، 6/2? کاهش داشته است.
  
• هورمون اکسي‌توسين و صداقت چه ارتباطي دارند.
  محققان مي‌گويند، افرادي که سطح هورمون اکسي‌توسين در آنها بالاتر است، ساده لوح نيستند بلکه با افراد صادق هستند.
  
• اسيدهاي چرب امگا 3 قلبتان را محافظت نمي‌کنند؟!
  تحقيقات تازه دانشمندان بيانگر آن است که اسيد‌هاي چرب امگا 3 در ميزان اندک اثر محافظت کننده روي سلامت قلب ندارد.
  
• کشف ژن ميگرن
  محققان ادعا مي‌کنند که به تازگي ژن را شناسايي کرده‌اند که در بروز ميگرن دخالت دارد.
  
• گياهان برگ سبز در مقابل ديابت
  محققان مي‌گويند مصرف سبزيجات برگ سبز مي‌تواند از بروز ديابت نوع 2 پيشگيري کند.
  
• کودکان لوچ کمتر به تولدها دعوت مي‌شوند
  محققان مي‌گويند کودکان مبتلا به لوچي کمتر از سوي دوستان‌شان به تولد دعوت مي‌شوند.
  
• سرو همبرگر با استاتين!
  محققان انگليسي توصيه مي‌کنند همراه با فست‌فودها، استاتين نيز سرو شود تا از بروز ناراحتي‌هاي قلبي‌-عروقي در مصرف‌کنندگان بتوان پيشگيري کرد.آنها از مارکهاي فست فود دعوت کردند که به منظور مقابله با غذاهاي چرب در منوي خود دوز بسيار پاييني از داروهاي ضد کلسترول را به مشتريان خود عرضه کنند.استاتينها داروهايي هستند که مانع سنتز کلسترول در خون مي شوند. فست فودها نيز به عنوان دشمن شماره يک افزايش کلسترول و چربي خون شناخته مي شوند.به همين منظور دانشمندان دانشگاه کالج امپريال لندن ايده عجيبي را براي کاهش خطرات ناشي از خوردن غذاهاي فست فودها (معروف به غذاهاي زباله) ارائه کردند.
  
• رابطه مواجهه جنين با آفت‌کش‌ها و عدم تمرکز در 5 سالگي
  محققان مي‌گويند کودکاني که مادرانشان در دوران بارداري با آفت‌کش‌هاي ارگانوفسفر ارتباط داشته‌اند در بلندمدت دچار مشکلات تمرکز مي‌شوند.
  
• رابطه بين ابتلا به ديابت نوع2، ميزان درآمد و ميزان تحصيلات در زنان
  محققان مي‌گوئيند زناني که درآمد کمي دارند و از نظر تحصيلات در سطح پاييني قرار گرفته‌اند بيشتر به ديابت نوع2 مبتلا مي‌شوند.
  

Persian User

• Lang-8.com Get Free Help with your Foreign Language Writing, including Spanish, French, Chinese and Many More
  

  

  Summary

  Lang-8 is a free, unique and popular website for learners of many languages to come together and correct one another’s writing. Native speakers review writing submitted by learners who wish to improve. You can help and be helped!

  The free tools provided in the interface are straightforward and tuned in such a way that it’s quite easy to correct another user’s writing, as well as to see exactly how others have corrected yours.

  Lang-8’s interface also provides social tools for interacting amongst users, including a way to find language matches to suit your needs.

  

  Lang-8 has a large user community, coming from over 180 countries around the world, and together they provide access to help in some of the more exotic languages for which it’s often hard to find resources, much less free help. Yes, there really are plenty of people out there willing to help you improve your writing for free! In turn, you can choose to help others as well.

  Also available is a mobile version of the website.

  From Website

  

  Real Interactions

  Learn from real native speakers excited to help you with the language that you are learning.

  International Community

  Community members from all over the world make Lang-8 a fun, social experience.

  Keep Track

  Tag and keep track of the things you learn from native speakers. Refer back and remember!

  See Results

  By using Lang-8 you will get better, make friends, and see real results. There’s no better help than native speakers.

  Lang-8 Intro Video

  Visit Lang-8.com

  
  

  
  

Free Downloads

• Online Armor personal firewall 4.5.0.234
  

  Online Armor personal firewall protects your computer’s internet connection (inbound connections and outbound connections), stops unknown programs from running and detects keyloggers – plus lots more! Online Armor is a full security system for your computer, but has been designed to be very easy to use. You can check out its features in detail by looking at the menu on the left. In standard mode, most decisions are made completely automatically based on Online Armor’s whitelist – meaning that you never need answer a complex firewall prompt again.

  Online Armor firewall is designed to be easy to use, right out of the box – but that doesn’t mean it lacks in power. Slip into advanced mode, and additional options for power users are present. Import blacklists from bluetak directly into the firewall and apply them against rules. This allows protection of P2P programs or web browsers, without applying these lists against every connection.

  You can also use this feature to block countries or networks known to host malware, zombies or other dangerous content.

  If you want to limit the connectivity of your computer to known systems (for example, VNC to your home computer from the office network only) you can restrict it in Online Armor easily. You can also restrict connections by country (“Don’t allow connections to this country”) or, alternatively, only open up certain countries (“Only allow my browser to connect to sites in the USA or Australia”).

   

  There are two different versions of Online Armor available.

  Online Armor personal firewall 4.5.0.234
  
• Wondershare Data Recovery 1.5
  

  Wondershare Data Recovery is a powerful data recovery tool designed to recover files and folders deleted from Recycle Bin or by Shift + Del and Windows Command Line, rescue lost data from partition being formatted, lost or damaged, system reinstallation, software crash, virus infection, unexpected shutdown or any other unknown reasons.

  You can recover data from all data loss scenarios

  Recover deleted data due to

  * Deletion such as ‘Shift + Del’ without backup;
  * Emptying Recycle Bin;
  * Deleting files by Windows Command Line or from DOS.

   

  Recover lost data due to formatting

  * Unexpectedly formatted hard drive;
  * For any devices without quality loss.

  Wondershare Data Recovery 1.5
  
• O&O Defrag 14.0 Build 145 Professional Edition
  

  O&O Defrag puts is a replacement for the standard Windows defragmenter, that offers a much advanced set of features. It puts fragmented files together and maximizes your system speed and offers five different defragmentation strategies, as well as OneButtonDefrag technology for automatic adjustment of the settings best fitting for your system. The program can defragment drives manually, or fully automatic in the background, keeping your system at peak performance by avoiding build-up of file fragmentation. Defragmentation jobs can also be scheduled, using various criteria. Additional features include status reports, cluster inspector, command line interface, optional MMC integration, boot time defragmentation, special support for mobile systems and more. O&O Defrag solves the performance and stability problems of Windows workstations and servers caused by fragmented hard disks. Fragmentation is the main cause of significant losses in performance in Windows.

   

  Due to the fact that the hard disk is the slowest component of a computer, its optimization is an especially important issue. By using O&O Defrag, files can be read and written much more quickly. What at first seems to be lost performance can easily be rediscovered and realized again with O&O Defrag, giving you the peace of mind that your hardware is in good health and operating optimally.

  The new O&O Defrag Professional Edition unleashes the hid-den performance of your computer. O&O Defrag optimizes your hard disk and effciently packs fle fragments together again. O&O Defrag is everything superior defragmentation software should be: it gives you fully automatic defragmentation for the home user as well as expert-level professional setting options.

  O&O Defrag 14.0 Build 145 Professional Edition
  
• DVD-Cloner VII 7.60 Build 998
  

  DVD-Cloner is excellent DVD/Blu-ray copy software that makes quality DVD/Blu-ray backups super easily. DVD-Cloner provides you easy-to-use tools and state-of-the-art technology that let you make quality DVD/Blu-ray copies. DVD-Cloner makes DVD/Blu-ray copies with perfect picture quality, whether it’s the full disc copy or main title copy. With its innovative ERT technology, you can back up any of the latest DVD movies with ease. Under the customized copy mode, users are allowed to select their desired audio tracks and subtitles. For beginner users, its intuitive and wizard-style interface provides easy, guided steps for DVD copy. The new burning engine can make perfect 1:1 copy. It can intelligently identify the disc type and display relevant copy modes on the interface for you to select. Supports for the backup of Blu-ray / HD DVDs. You do not need to download a separate program like DVD43 or AnyDVD. Works on Windows 7/2000/XP/Vista.

   

  DVD-CLONER Features:

  Perfect 1:1 DVD Copy
  • In accordance with the leading quality in DVD burning software industry, DVD-Cloner VII is more powerful and reliable.
  • State-of-the-art transcoding technology ensures a better picture quality
  • Supports the backup of ISO, NRG files
  • Copies and burns CSS-encrypted, Region- protected and Sony ARCCOS protected DVD movies
  • Express and Expert interfaces: Express interface is the one-click solution to make DVD copy, while Expert interface is more professional to make customized DVD copy.

  DVD-Cloner VII 7.60 Build 998
  
• Kingdia DVD Ripper 3.7.9
  

  Kingdia DVD Ripper is a ease-to-use and fastest DVD to almost video formats converter software. It supports backup DVD to AVI, Divx, Xivd, MPG ,ASF, WMV, etc. You can enjoy your favorite DVD in anywhere. With build-in X-SPEED transcode engine, it is up to 4X faster other normal converter. It is one-click solution to backup your favorite DVD. Kingdia DVD Ripper supports batch file processing. You can check the chapters or videos you want to convert and convert them one by one, alse can select any audio track and subtitle as you want.

  • High-speed encoder ensures smooth conversion of video and audio data;
  • So easy to use that only a few clicks are enough;
  • Output settings are all adjustable. It’s suitable for veterans as well;
  • Direct DVD movies to all most video formats without losing quality.

  Kingdia DVD Ripper 3.7.9
  
• Open Blu-ray Ripper 1.50 Build 432
  

  Open Blu-ray ripper is high-grade Blu-ray ripping and converting software. It gives you the freedom to convert latest Blu-ray movies to a great variety of audio and video formats and enjoy the movies on different devices, such as iPad, iPod, iPhone, AppleTV, PSP, PS3, XBOX360, Zune, Mobile Phone, GPhone, Smart Phone, PMP, Pocket PC, PDA, etc. Its new cutting-edge HST™ tech makes the conversion extraordinarily fast, 800% faster than ever. With Open Blu-ray ripper, you can enjoy the converted Blu-ray movies anytime anywhere! Open Blu-ray ripper is such a powerful application that it supports for various customized settings. When converting Blu-ray movies with Open Blu-ray ripper, users are allowed to select their favorite title(s) to convert and their desired audio track. The advanced setup and profile setup functions let users make various advanced settings, like the defining of resolution, video bitrate, audio bitrate, etc to meet various demands.

   

  Open Blu-ray ripper is a real “one-click” solution to convert Blu-ray movies to various popular audio and video formats. The user-friendly interfaces make the converting process easy and fun.

  Open Blu-ray ripper can freely convert Blu-ray movies to various video formats such as AVI, MKV, WMV, MPG, 3GP, MP4, FLV, SWF, MOV, TS, RM, ASF and audio formats such as MP3, M4A, WAV, AC3, MP2, AMR, FLAC, WMA, OGG, RA, AAC, AU, AIFF, etc.

  Open Blu-ray Ripper 1.50 Build 432
  
• IObit Security 360 1.50.10
  

  Scan and Remove the Deepest Malware that Your Antivirus Missed!

  IObit Security 360 is an advanced malware & spyware removal utility that detects, removes the deepest infections, and protects your PC from various of potential spyware, adware, trojans, keyloggers, bots, worms, and hijackers. With the unique “Dual-Core” engine and the heuristic malware detection, IObit Security 360 detects the most complex and deepest spyware and malware in a very fast and efficient way. IObit Security 360 has a real-time malware protection and frequent automatic updating for prevention of zero-day security threats. IObit Security 360 can work with your Antivirus for a superior PC security. Designed for Windows® 7, Vista™, XP and 2000 (32bit and 64bit), IObit Security 360 can work with your Antivirus for a superior PC security.

  IObit Security 360 1.50.10
  
• ImTOO DVD Ripper 6.0.9.0806
  

  ImTOO DVD Ripper is a powerful DVD ripping software application to rip and convert DVD movies to almost all video and audio formats (rip DVD to AVI, DVD to MP4, DVD to MPEG, DVD to WMV, DVD to DivX; convert DVD to MP3, DVD to WMA) with high DVD ripping speed and exceptional quality. You can now enjoy your entire DVD collection on multimedia players such as iPod, iPhone, Apple TV, PSP, PS3, BlackBerry, iRiver PMP, Windows Mobile phone, Xbox and Mobile phones all made possible with the ImTOO DVD Ripper! ImTOO DVD Ripper also features video or audio-editing options prior to ripping – cut certain clips, merge several clips into one with transitional effects added, crop selected scenes, add subtitles and soundtracks and attach watermarks. Other features include setting the target file size before conversion; running ImTOO DVD Ripper in the background to save resources; and even setting an action (shutdown, exit, standby or hibernate) to auto perform after a task is done.

  ImTOO DVD Ripper 6.0.9.0806
  
• Blue-Cloner 2.40 Build 515
  

  Blue-Cloner is a professional Blu-ray tool to make quality Blu-ray backups easily. It can copy Blu-ray movies to BD-R/REs or to the hard disk drive with absolutely the same quality. Its fast copying speed and friendly user interface makes the Blu-ray copy easier than ever. Blue-Cloner is capable of removing unwanted movie features. It also allows you to make various customized settings, like the selection of audio track and subtitle, the control of the compression rate, and many more. Now you can put away your original Blu-ray discs and enjoy your favorite movies anytime you like!

  • Copies Blu-ray movies • HST™ – 500% faster

  • Customized copy • Enhanced burning engine

  Blue-Cloner 2.40 Build 515
  
• Auslogics BoostSpeed 5.0.4.220
  

  Auslogics BoostSpeed – the ideal solution to speed up your computer and Internet connection. This powerful Windows optimizer will boost Internet connections, tweak Windows to its peak performance, clean and defrag disks and the registry. It’s a great way to speed up your PC and keep it clean and optimized.

  Start programs faster. Speed up computer start time. Increase Internet speed, optimize your Internet Explorer, Firefox and E-mail programs. Boost Speed will clean up disks and the Registry to speed up your computer and tweak Windows to its peak performance. Modify Windows settings, file system and services to greatly increase system performance. BoostSpeed will keep monitoring your system for possible optimizations and let you know if such optimizations are possible. You can also run the System Optimization Wizard to periodically optimize your PC.

  Auslogics BoostSpeed 5.0.4.220
  
• Corel WinDVD Pro 2010 10.0.5.536
  

  WinDVD 2010 – the world’s #1 Blu-ray and DVD player software for the ultimate movie experience!

  Bring the ultimate movie experience to your PC with Corel® WinDVD® 2010, the world’s leading video and DVD player software. Watch movies on your home theater system, desktop or laptop, and enjoy crystal-clear pictures with crisp, theater-like surround sound. The best DVD player software for high-quality video playback, WinDVD delivers a more lifelike and exhilarating entertainment experience. Enjoy home movies or the latest Hollywood blockbusters with superior picture quality and razor-sharp audio performance. Take your flicks on the go with laptop features that make sure your batteries don’t run out before the movie. Plus, watch videos right from your camera, camcorder or DVD–no downloading required! Bring the high-impact HD movie experience to your PC with Corel® WinDVD® Pro 2010 – the world’s leading Blu-ray and DVD player software.

  Whether you’re watching a Blu-ray Disc®, an HD video file downloaded from the Internet or your own HD home movie, WinDVD Pro gives you the intense video quality that only HD can deliver.

   

  • Watch home movies or the latest Hollywood blockbuster DVDs

  • Enjoy crystal-clear video
  • Experience the crisp sound quality of Dolby® Digital Sound
  • Watch movies wherever you are with battery optimization for your laptop
  • Play movies in popular audio and video formats
  • Get hands-on with Windows® 7 touch-screen features

  

  Corel WinDVD Pro 2010 10.0.5.536
  
• Mobile Master 7.7.2
  

  Mobile Master is a mobile phone software tool for mobile phone management and SMS communication that can be used to exchange data between mobile phone and PC. Via cable, infrared, or Bluetooth, the system automatically detects the mobile phone and assigns it its own profile, making it possible to manage several phones without creating chaos with the data. An assistant helps with the settings. Even users with no prior knowledge can, for example, download their phone’s address book data to the PC with just a few mouse clicks. Edit and synchronize calendar entries (appointments and tasks). Send, read, archive SMS Note: the SMS Servant is included in the Mobile Master installation but requires an extra license. Logo-Editor, modify ring tone. Copy Station for transmitting your address book easily from one phone to the other. Mobile Master Agent: reach always the important functions easily and start e.g. Mobile Master automatically as soon as your mobile phone is connected to the PC.

  Mobile Master 7.7.2
  
• Avant Browser 2010 Build 107
  

  Avant Browser is a fast, stable, user-friendly, versatile the top rated multi-window browser in Internet, which adds a batch of features and functionalities to Internet Explorer. Avant Browser is a multi-window browser which features with many functions such as Pop-up Stopper and Flash Ads Filter, Built-in Google Searching, Built-in RSS/ATOM Reader, Safe Recovery, Integrated Cleaner and Advanced Browsing Options. Avant Browser is available in 41 languages.

  • Online Profile Storage: Avant Browser can save users’ bookmarks, RSS Feeds, configurations or web passwords etc, in Avant online storage. In this way, users can access their personal data from anywhere, office, home or an Internet cafe, and don’t need to worry about losing those data when re-install windows.

  Avant Browser 2010 Build 107
  
• Passware Kit 10.1 Build 1986
  

  Passware software recovers or resets passwords for Windows, Word , Excel, QuickBooks, Access, Acrobat, and more than 150 document types. For the last 11 years Passware has been helping Fortune 500 corporations, worldwide police agencies, federal, state, and local government agencies, IT and forensic professionals, and tens of thousands of businesses and private users with their password problems. We are proud to have IRS, NASA, Boeing, Nokia, DOD, US Department of Justice, Department of Homeland Security, and others as our customers.

  Passware Kit combines over 30 password recovery modules in a convenient and cost-saving software pack. Passware Kit comes in 5 editions — for private, small business, professional, corporate, and forensic users.
  Passware Kit 9.3 Introduces Portable Version, Accelerates RAR Password Recovery, and Supports MS SQL 2008.

   

  Passware Kit recovers all kinds of passwords for the world’s most popular office application files, including Excel, Word, Windows XP/2000/NT, QuickBooks, Access, FileMaker, Outlook, Outlook Express, Exchange, WinZip, PKZip, ZIP, WinRAR, Network Connections, SQL, BestCrypt, OneNote, PowerPoint, VBA Visual Basic modules, 1-2-3, Internet Explorer, EFS – Encrypted File System, Acrobat, Quicken, Lotus 1-2-3, Lotus Notes, Lotus Organizer, Lotus WordPro, Quattro Pro, Backup, Project, MYOB, Paradox, ACT!, Mail, Schedule+, Money, WordPerfect, WordPro and more.

  Passware Kit 10.1 Build 1986
  
• Comodo Time Machine 2.8.155286.178
  

  Comodo Time Machine (CTM) is a powerful system rollback utility that allows users to quickly restore their computers to an earlier point in time. CTM ’snapshots’ are a complete record of your entire system (including the registry, critical operating system files and user created documents).

   

  Layered Security:

  • Schedule automatic snapshots to be taken at regular intervals
  • Roll back to the last known working state in the event of virus attacks or crashes
  • Take snapshots of your computer before large installations or system maintenance

  Software Developers and testers can easily restore test systems to the default configuration after each deployment without the need to manually uninstall each application. Home users can even let the kids run amok on the family PC for an afternoon and be safe in the knowledge that any damage can be instantly undone and all files recovered.

   

  Comodo Time Machine features an intuitive, friendly interface which offers quick and easy access to all functionality in the application. Additionally, it also features a sub-console that can be accessed before Windows starts and a Quick Operation console containing shortcuts to important and commonly executed tasks.

  Comodo Time Machine 2.8.155286.178