![]() It has been shown that this structure may be due to mechanical stresses. CompositionĪmethyst is composed of an irregular superposition of alternate lamellae of right-handed and left-handed quartz. In theory however it is possible to create this material synthetically as well, but this type is not available in large quantities in the market. There is one test (which is not 100 percent certain) based on "Brazil law twinning" (a form of quartz twinning where right and left hand quartz structures are combined in a single crystal which can be used to identify synthetic amethyst rather easily. Its chemical and physical properties are so similar to that of natural amethyst that it cannot be differentiated with absolute certainty without advanced gemological testing (which is often cost prohibitive). ![]() ![]() Synthetic amethyst is made to imitate the best quality amethyst. On exposure to heat, amethyst generally becomes yellow, and much of the citrine, cairngorm, or yellow quartz of jewelry is said to be merely "burnt amethyst." Veins of amethystine quartz are apt to lose their color on the exposed outcrop. Further study has shown a complex interplay of iron and aluminium is responsible for the color. More recent work has shown that amethyst's coloration is due to ferric iron impurities. Ferric thiocyanate was suggested, and sulfur was said to have been detected in the mineral. However, since it is capable of being greatly altered and even discharged by heat, the color was believed by some authorities to be from an organic source. In the 20th century, the color of amethyst was attributed to the presence of manganese. The name comes from the Greek a ("not") and methustos ("to intoxicate"), a reference to the belief that the stone protected its owner from drunkenness the ancient Greeks and Romans wore amethyst and made drinking vessels of it in the belief that it would prevent intoxication.Īmethyst is the purple variety of quartz, its chemical formula is SiO 2. 6-sided prism ending in 6-sided pyramid (typical)Ģ.65 constant variable in impure varietiesĪmethyst is a purple variety of quartz often used as an ornament.
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Intro Specs Performance Compared Usage Recommendations MoreĪF-NIKKOR 35mm f/2D ( FX, DX and 35mm coverage, 52mm filters, 7.0 oz./200g, about $360 new or $330 ( gray-market) or about $225 used if you know How to Win at eBay). Roger Cicala, Sigma 35mm f/1.4 DG HSM A1 for Sony, LensRentals.Home Donate New Search Gallery Reviews How-To Books Links Workshops About Contact Markus Stamm, Micro Nikkor AF-S DX 85mm f/3.5 G ED VR - Review / Test Report, PhotozoneĬhris Gampat, Review: Sigma 18-35mm f1.8, The Phoblographer, July 16, 2013Įrez Marom, Macro Photography: Understanding magnification, DPReview, November 28, 2011 Jim Fisher, Nikon AF-S Nikkor 85mm f/1.8G, PCMag, March 23, 2015 Gary Wolstenholme, Sigma 10-20mm f/3.5 EX DC HSM Interchangeable Lens Review, ePHOTOzine, April 26, 2010Ĭhris Gampat, Review: Nikon 85mm f1.8 G, The Phoblographer, April 23, 2012 Gordon Laing, Nikkor AF-S VR 70-300mm f/4.5-5.6 G IF-ED, Camera LabsĪndrew Alexander, Sigma 10-20mm f/3.5 EX DC HSM, Imaging Resource, September 14, 2009 Nikon 70-300mm f/4.5-5.6G IF-ED VR AF-S Nikkor, Imaging Resource Szymon Starczewski, Nikon Nikkor AF-S 70-300 mm f/4.5-5.6G IF-ED VR,, March 12, 2010 Gordon Laing, Nikkor AF-S DX 35mm f/1.8G, Camera LabsĪndy Westlake, Nikon AF-S Nikkor 35mm 1:1.8G DX review, DPReview, March 20, 2009 and it balances well on smaller Nikon SLRs.” Thomas at Camera Labs concludes, “Nikon’s Micro-Nikkor 85/3.5 is a very competent macro lens: it’s the cheapest stabilized macro-lens you can buy and it delivers very good performance with sharp images center to corner albeit with somewhat reduced contrast when wide open.” Noting that the best results are found at apertures of f/5.6 and narrower, he writes, “you should not worry too much about that: with larger magnifications you normally have to stop down to get a decent depth of field.”Īndy Hendriksen, What’s In My Bag: Andy Hendriksen Edition, The Phoblographer, February 15, 2012 The lens doubles as a short telephoto prime when working with non-macro subjects. All this comes with the added bonus of Nikon’s VR II optical stabilization.” Jim Fisher of PCMag, noting a bit of barrel distortion writes, “When it all shakes out, the barrel distortion is a quibble that won’t be noticeable in most images, and there’s no questioning the detail that can pick up. It’s rather light-weight and compact, delivers very sharp images wide open. option for DX shooters looking for a dedicated macro lens. ![]() Photozone’s Markus Stamm calls it “an attractive. Reviewers, though noting some optical shortcomings compared with higher-priced options like the Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED macro lens that we recommend for full-frame shooters, appreciated the overall package the Nikon 85mm f/3.5 macro lens brings to the table. If you don’t shoot with a Nikon camera, but want to invest in some great starter lenses for another system, have a look at our guides for Canon, and Sony E-Mount lenses. If macro is your thing, start with the Nikon AF-S DX Micro Nikkor 85mm f/3.5G ED VR for DX bodies or the Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED for full-frame cameras. We recommend the Nikon AF-S VR Zoom-Nikkor 70–300mm f/4.5–5.6G IF-ED as your telephoto, the Sigma 10–20mm F3.5 EX DC HSM for a wide-angle option if you have a DX (aka APS-C) body or the Sigma 12-24mm F4.5-5.6 DG if you have a full-frame camera, and the Nikon AF-S Nikkor 85mm f/1.8G for portraits. To take your photography to the next level, you’ll want to begin building your arsenal of lenses. Full-frame shooters should opt for the Sigma 50mm 1.4 DG instead of the 35mm. It has an even wider aperture than our main fast prime pick-and compared with the f/3.5 that comes standard in most kit lenses, the Sigma allows for perfectly blurred backgrounds and clear shots even in very low light. If budget isn’t a concern or you simply want the best for your camera, the Sigma 35mm F1.4 DG HSM is the way to go. ![]() Version 6.5.11.1 supports status messages (similar to away messages), and has improved cell phone integration. The standard protocol that AIM clients use to communicate is called OSCAR. Most AOL-produced versions of AIM and popular third party AIM clients use this protocol. ![]() However, AOL also created a simpler protocol called TOC that lacks many of OSCAR's features but is sometimes used for clients that only require basic chat functionality. The TOC/TOC2 protocol specifications were made available by AOL, while OSCAR is a closed protocol that third parties have had to reverse-engineer. In January 2008, AOL introduced XMPP support for AIM, allowing AIM users to communicate using the standardized, open-source Extensible Messaging and Presence Protocol. However, in March 2008 this service was discontinued.ĪIM and AOL use several terms for elements of their instant messaging, which are different from other messengers. Away message: A function of some instant messaging applications whereby a user may post a message that appears automatically to other users if they attempt to make contact when the user is unavailable.It is analogous to the voice message on an answering machine or voice mail system. #Aol instant messenger for mac software#.#Aol instant messenger for mac upgrade#.#Aol instant messenger for mac for mac#.Then send a notification to related people, so they can start file sharing and updating in an efficient way. When you need to share a document with multiple users, and let each of them have the ability to modify or downloaded the file, just upload the document to your document management board and configure the access and modify permissions, who can view the file, who can modify or download it. Invite the contacts to the same chat session and start discussion, file transfer and screen share will be available to help the joined members express well.Īn extended feature of group chat is broadcast message, the quickest method to send an instant message to all employees in one click, especially when there is an urgent notification should be notified through out the company, Different to the traditional broadcast message, BigAnt offers an option to turn the broadcast message to a online forum mode which enables all members can view or reply the same message thread, meanwhile check out others reply in real time, the thread and all replies will be archived in the broadcast message board for future checking or add new reply based on needs.Īs a solution for enterprise messaging, BigAnt Pro has a value added feature called document management board, which integrate the document sharing and instant messaging into one solution. In office, when you need to discuss one topic with multiple users at the same or get others to help you immediately, the feature does help. One of the key features of instant messenger is group chat or group discussion. What’s more, BigAnt corporate messenger gives you the ability to modify, customize and extend functionality to make it your own. The new released BigAnt corporate Messenger for Mac app includes the major IM functions like instant messaging, offline messaging, and view structured online contacts. The Mac has gradually become a better platform for Instant Messaging (IM) in recent years, Now BigAntSoft is proud to introduce BigAnt corporate messenger v2.82 which supports Mac OS X.Īs an enterprise messenger that focus on secure and customized instant messaging solution. BigAnt Corporate Messenger for Mac releasedīigAnt corporate messenger suite is a secure instant messaging solution for enterprise and supports Windows OS and Blackberry. ![]() ![]() It impacts on the total write ops the drive can reasonably be expected to sustain. Well, yes, just as bad as it is for HDDs. I always shied away from defraging ssd I always thought it was bad for them. Oh and it's also perfect for SSDs etc., which of course fragment just like any other storage medium. The current included defragger does seem to do the job, but my confidence in it is low so I'm very much inclined to take up the offer of the spare seat.Īpparently has no neg impact on speeds and only pos one. ![]() At least until XP (no idea if also later) MS used to license and include a cut-down, very basic version of Diskeeper with the OS. Oh and it's also perfect for SSDs etc., which of course fragment just like any other storage medium.Īs for MS implementing stuff previously provided by 3rd party s/w, yep, they certainly try. Apparently has no neg impact on speeds and only pos one. After that I lost track, but the current version has something new up its sleeve - it doesn't actually defrag after the event, it prevents fragmentation by forcing files to be written contiguously. Oh, Diskeeper Pro up to the XP versions was absolutely brilliant. The Windows defragger does a good enough job in the background (this is the issue with Microsoft implementing certain functionalities that were previously offered by 3rd party utilities into the OS - they're generally not very good, but because they are 'good enough' to most people, they end up killing the 3rd party utility anyway). These days, however, I only have a single HDD (all the rest are SSD/NVMe drives) and that one is only used for backup purposes. I used Diskeeper many years ago and I really liked it. ![]() ![]() We've got new stock videos for your projects. Free and exclusive to our 365 subscribers. Check them out now!Įnjoy a varied mix of classic wedding-themed background music. We've got new fonts for your video projects. Enjoy 12 different washed out, blown out, old school tones just like you'd find in a range of classic films. This LUTs pack contains all the color filters you need to achieve incredible vintage styles. This LUTs pack has the color palettes you need for a consistent style! Created especially for your videos shot in the great outdoors. Access a professional stock library that includes tens of thousands of videos, hundreds of thousands of images and hundreds of music tracks. Unleash Your Imagination with the World’s Leading Stock Catalog Helping you enhance the subtle yet no less essential sounds in your video projects.Įxperience an improved intuitive experience with the following features: Media Room, Particle Designer, Plug-Ins Menu, Tool Menu and Project Room. This pack includes 20 sounds of everyday objects, from keys rattling to coins dropping. Free and exclusive to our 365 subscribers.Ĭreate inspiring designs with beautiful typography with these new fonts. Including 12 designs, 2 directions of lens flares, in 2 color variations.Įnjoy a varied mix of parade music. Lens Flare Blending Pack - 48 Blending EffectsĪ beautiful collection of 48 blending effects. Transform your video projects with 12 incredible HDR LUTs, designed to enhance every detail, creating the richest of landscape videos.Ī selection of 20 sounds from a variety of sports. Landscape HDR LUTs Pack for PowerDirector Subscribe to PowerDirector 365 and get unlimited access to a growing collection of LUTs, templates, style packs, and background music. Get creative with a diverse range of 12 LUTs. Professional audio mixing user interface for advanced users.Īn incredible mix of PiP Objects, Particles and Title Templates designed for your social media projects.Ī new streamlined interface for a hassle-free user experience. Speed up your workload with 14 premade templates for Sketch Designer. Make shapes seemingly jump across the screen with Hold mode.įine-tune the hue, saturation and brightness of your color matches. You can now capture in-game footage or create a camera overlay with a chroma key background.Ĭustomize the color of objects and text to create a variety of styles.Īlter the position of the anchor point to achieve new levels of motion. 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Available exclusively on the Mac App Store. ![]() A coalescent-based isolation-with-migration (IM) model was used to estimate lineage divergence times and population demographic parameters. arguta populations to infer current patterns of molecular structure and diversity in relation to past (Last Interglacial and Last Glacial Maximum) and present distributions based on ecological niche modelling (ENM). Here, we investigate the effects of Quaternary changes in climate and sea level on the evolutionary and demographic history of Platycrater arguta, a rare temperate understorey shrub with disjunct distributions in East China (var. However, it is less clear when and how lineages diverged in this region, whether in full isolation or in the face of post-divergence gene flow. Sign up for the free insideBIGDATA newsletter.In East Asia, an increasing number of studies on temperate forest tree species find evidence for migration and gene exchange across the East China Sea (ECS) land bridge up until the last glacial maximum (LGM). TensorRT, with its real-time inference capabilities, improves the performance of the view detection algorithm and it also shortened our time to market during the R&D project.” “The cardiac view recognition algorithm selects appropriate images for analysis of cardiac wall motion. During the R&D project leading up to the Vivid Patient Care Elevated Release, we wanted to make the process more efficient by implementing automated cardiac view detection on our Vivid E95 scanner,” said Erik Steen, chief engineer of Cardiovascular Ultrasound at GE Healthcare. ![]() “When it comes to ultrasound, clinicians spend valuable time selecting and measuring images. This enables clinicians to deliver the highest quality of care through its intelligent healthcare solutions. GE Healthcare, a leading global medical technology, diagnostics and digital solutions innovator, is using TensorRT to help accelerate computer vision applications for ultrasounds, a critical tool for the early detection of diseases. With TensorRT 8, Hugging Face achieved 1ms inference latency on BERT, and we’re excited to offer this performance to our customers later this year.” “The Hugging Face Accelerated Inference API already delivers up to 100x speedup for transformer models powered by NVIDIA GPUs. “We’re closely collaborating with NVIDIA to deliver the best possible performance for state-of-the-art models on NVIDIA GPUs,” said Jeff Boudier, product director at Hugging Face. The company is working closely with NVIDIA to introduce groundbreaking AI services that enable text analysis, neural search and conversational applications at scale. ![]() Hugging Face is an open-source AI leader relied on by the world’s largest AI service providers across multiple industries. Industry leaders have embraced TensorRT for their deep learning inference applications in conversational AI and across a range of other fields. This significantly reduces compute and storage overhead for efficient inference on Tensor Cores. Quantization aware training enables developers to use trained models to run inference in INT8 precision without losing accuracy. Sparsity is a new performance technique in NVIDIA Ampere architecture GPUs to increase efficiency, allowing developers to accelerate their neural networks by reducing computational operations. 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This is a very quick and easy program to migrate over into. Download and installation of this PC software is free and 3.9.141.259 is the latest version last time we checked.Ĭompatibility with this photo organizer software may vary, but will generally run fine under Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP on either a 32-bit or 64-bit setup. Picasa is provided under a freeware license on Windows from the image viewer software category with no restrictions on usage. Provides several helpful image editing utilities.Optional Picasa Web Albums similar to Flickr.Upgrading to Picasa 3.9 Backup your Picasa Web Albums with Takeout. Manufacturer description: Picasa is free photo editing software from Google that makes your pictures look great.Sharing your best photos with friends and family. Includes powerful image searching features Original vs Edited Photo in Picasa Picasa: 2015 Year in ReviewGood News/Bad News.Picasa is software which can apply special effects to a picture. Picasa 3.9 Build 136.9 - September 12th, 2012 - Fixed Sync/upload to re-upload on image size or metadata changes. Picasas handling of video files isnt so impressive, relying mostly on third-party decoders that users must install separately, and with patchy support for the popular AVCHD format. Though the time of active development of Picasa had come to an end quite a while back, its features are still available to users wishing to do some rather old school tasks with a large number of digital pictures. In addition, multiple photos can be combined to create beautiful collages along with performing a multitude of functions with batch editing. While Picasa is great at backing up photos to the cloud and easily organizing them, it does come with some pretty cool photo editing tools which can quickly and painlessly resize and crop photos with a few clicks. ![]() The program is useful for the fact that it can be used to synchronize photos on the cloud with an easy-to-use interface making browsing photos a quick and simple task. ![]() Picasa is and was a free digital photo organizer that was made available by Google.Īlthough the program is no longer updated by the company, it is still available for download and usage on Windows systems and it allows the user to manage, manipulate and search through a large number of digital photos. Click to download (Deep) HIARCS Chess Explorer v1.9.2 Installer for Mac OS X (10.7 to 10.11) Updates both single and multi-core/processor (Deep) versions. the latest HIARCS Chess Explorer, opening books and Deep Junior . 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