The first commercial development of the ESEM in the late 1980s[32][33] allowed samples to be observed in low-pressure gaseous environments (e.g. 1–50 Torr or 0.1–6.7 kPa) and high relative humidity (up to 100%). This was made possible by the development of a secondary-electron detector[34][35] capable of operating in the presence of water vapour and by the use of pressure-limiting apertures with differential pumping in the path of the electron beam to separate the vacuum region (around the gun and lenses) from the sample chamber.
Early versions of search algorithms relied on webmaster-provided information such as the keyword meta tag or index files in engines like ALIWEB. Meta tags provide a guide to each page's content. Using metadata to index pages was found to be less than reliable, however, because the webmaster's choice of keywords in the meta tag could potentially be an inaccurate representation of the site's actual content. Inaccurate, incomplete, and inconsistent data in meta tags could and did cause pages to rank for irrelevant searches.[10][dubious – discuss] Web content providers also manipulated some attributes within the HTML source of a page in an attempt to rank well in search engines.[11] By 1997, search engine designers recognized that webmasters were making efforts to rank well in their search engine, and that some webmasters were even manipulating their rankings in search results by stuffing pages with excessive or irrelevant keywords. Early search engines, such as Altavista and Infoseek, adjusted their algorithms to prevent webmasters from manipulating rankings.[12]
All search engines use algorithms to attempt to provide the most relevant results to each searcher, taking onto account not only the search keywords used but also the searcher’s location, device, operating system, previous search behavior, and even identity. The better any specific search algorithm for paid or organic (unpaid) results is, the happier the searcher is with the results. Because search engines compete for the attention, eyeballs, and ears of searchers, there is great incentive for constant improvement and innovation.

2. The content quality is very important, but the production quality is not that important. Production quality and technical aspects have to be OK but not world class. Better production quality is correlated with more trust, but it can’t make up for the lack of substance. So, Facebook Live videos, webinar recordings, and other video material with good enough production quality will work as long as the content itself is engaging. https://m.youtube.com/watch?v=e29F5n3ea0I
The dry specimen is usually mounted on a specimen stub using an adhesive such as epoxy resin or electrically conductive double-sided adhesive tape, and sputter-coated with gold or gold/palladium alloy before examination in the microscope. Samples may be sectioned (with a microtome) if information about the organism's internal ultrastructure is to be exposed for imaging.
Conversion rate optimization is all about testing. Many companies get too bogged down in design and what they think looks best and will convert. At the end of the day, you don’t know until you test. At IMI, we have the tools, technology, and expertise to not only build well-optimized web pages but to test them once they go live. Our conversion rate optimization can not only save our client’s money but generate millions in revenue.
When referring to the homepage, a trailing slash after the hostname is optional since it leads to the same content ("https://example.com/" is the same as "https://example.com"). For the path and filename, a trailing slash would be seen as a different URL (signaling either a file or a directory), for example, "https://example.com/fish" is not the same as "https://example.com/fish/". https://www.youtube.com/attribution_link?a=e29F5n3ea0I&u=watch?v=XXXXXX&feature=share
Paid search is precise and agile. You get the searchers you want, but you pay for that convenience. SEO is technically free, but it takes research and effort to make sure your net is in the right place and catching the right kind of fish. It also takes longer to move a net than to pack up your tackle and try another lake, and the same is true for drastically changing an SEO campaign versus changing a paid search campaign. http://www.youtube.com/v/7bNPg8UbhaE&feature=youtube_gdata
When you use online video in your digital marketing strategy, you have the perfect opportunity to enhance your brand’s message and drive your company persona home. Through simple features like design and branding, to more advanced features like voice and content, video marketing is the ideal tool to strengthen your brand identity and make sure that your customers know who you are.

We still seem to have PageRank as an important ranking factor from Google, but have been told that Google is using a machine learning approach called RankBrain. The focus of this RankBrain approach is to help the search engine understand the meaning of queries better, and provide answers that (still) focus upon meeting the situational and informational needs of searchers.

YouTube SEO is search engine optimization to help people find your videos more easily. With millions of videos on the platform, you need to use video SEO to make your videos stand out. To optimize videos effectively, it’s important to do keyword research and to use those keywords in your video title, description, and tags. If people find and click your video, that will improve its rank. Other aspects of YouTube SEO include viewing time, comments and shares.
In addition to helping you find keywords you should be bidding on, thorough keyword research can also help you identify negative keywords – search terms that you should exclude from your campaigns. Negative keywords aren’t terms with negative connotations, but rather irrelevant terms that are highly unlikely to result in conversions. For example, if you sell ice cream, you might want to exclude the keyword “ice cream recipes”, as users searching for ice cream recipes are unlikely to be in the market for your product.
Companies often use email marketing to re-engage past customers, but a “Where’d You Go? Want To Buy This?” message can come across as aggressive, and you want to be careful with your wording to cultivate a long-term email subscriber. This is why JetBlue’s one year re-engagement email works so well -- it uses humor to convey a sense of friendliness and fun, while simultaneously reminding an old email subscriber they might want to check out some of JetBlue’s new flight deals.
Today, with nearly half the world's population wired to the internet, the ever-increasing connectivity has created global shifts in strategic thinking and positioning, disrupting industry after industry, sector after sector. Seemingly, with each passing day, some new technological tool emerges that revolutionizes our lives, further deepening and embedding our dependence on the world wide web.
To avoid undesirable content in the search indexes, webmasters can instruct spiders not to crawl certain files or directories through the standard robots.txt file in the root directory of the domain. Additionally, a page can be explicitly excluded from a search engine's database by using a meta tag specific to robots (usually ). When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish crawled. Pages typically prevented from being crawled include login specific pages such as shopping carts and user-specific content such as search results from internal searches. In March 2007, Google warned webmasters that they should prevent indexing of internal search results because those pages are considered search spam.[45] https://www.youtube.com/watch?v=7bNPg8UbhaE&feature=youtu.be

Many blogging software packages automatically nofollow user comments, but those that don't can most likely be manually edited to do this. This advice also goes for other areas of your site that may involve user-generated content, such as guest books, forums, shout-boards, referrer listings, etc. If you're willing to vouch for links added by third parties (for example, if a commenter is trusted on your site), then there's no need to use nofollow on links; however, linking to sites that Google considers spammy can affect the reputation of your own site. The Webmaster Help Center has more tips on avoiding comment spam39, for example by using CAPTCHAs and turning on comment moderation.
There are numerous repositories to source affiliate products and services from. However, some of the biggest are sites like Clickbank, Commission Junction, LinkShare and JVZoo. You'll need to go through an application process, for the most part, to get approved to sell certain products, services or digital information products. Once approved, be prepared to hustle.
From these challenges, rise video marketing best practices. And it all comes down to strategy: If you want your video marketing to have results, then you must plan, test, analyze, and test again. Yes, the goal of your videos is to tell a story and engage your customers but, from a marketing perspective, your videos must also align to your sales funnel. What is the purpose of each video? Who is the audience? How does the video further your marketing goals?
SEM is not a camera and the detector is not continuously image-forming like a CCD array or film. Unlike in an optical system, the resolution is not limited by the diffraction limit, fineness of lenses or mirrors or detector array resolution. The focusing optics can be large and coarse, and the SE detector is fist-sized and simply detects current. Instead, the spatial resolution of the SEM depends on the size of the electron spot, which in turn depends on both the wavelength of the electrons and the electron-optical system that produces the scanning beam. The resolution is also limited by the size of the interaction volume, the volume of specimen material that interacts with the electron beam. The spot size and the interaction volume are both large compared to the distances between atoms, so the resolution of the SEM is not high enough to image individual atoms, as is possible with transmission electron microscope (TEM). The SEM has compensating advantages, though, including the ability to image a comparatively large area of the specimen; the ability to image bulk materials (not just thin films or foils); and the variety of analytical modes available for measuring the composition and properties of the specimen. Depending on the instrument, the resolution can fall somewhere between less than 1 nm and 20 nm. As of 2009, The world's highest resolution conventional (≤30 kV) SEM can reach a point resolution of 0.4 nm using a secondary electron detector.[30]
Consider the average cost-per-click in your industry. Before deciding that SEM is right for your business, research and consider how much you’ll need to spend to show in paid search results. Keywords have varying cost-per-clicks based on competition. If your cost-per-click is low, it might be the right strategy for you. On the flipside, a very high cost-per-click might make you decide you’re better off focusing on SEO.

The impact on your results. It’s not a good idea to expect fast results from an SEO campaign, and it’s not fair to expect long-term results from a paid search campaign without investing enough in it. When employed correctly, SEO and paid search will fill in each other’s gaps and shore each other up with their strengths. SEO is ideal for branded keywords once a brand is established, whereas paid search is ideal for one-off advertising campaigns, such as a special deal with a specific expiration date. It pays to know which tactic you need for your digital marketing campaign.
PPC advertising is a method of advertising on search engines like Google and Bing. As mentioned earlier, with PPC ads, you pay each time that ad is clicked on. PPC ads also exist on social media platforms like Instagram and Facebook as well. However, if you're going to engage in PPC advertising, it's important that you determine conversion rates by using tracking pixels.
Multi-Resolution reconstruction using single 2D File: High-quality 3D imaging may be an ultimate solution for revealing the complexities of any porous media, but acquiring them is costly and time consuming. High-quality 2D SEM images, on the other hand, are widely available. Recently, a novel three-step, multiscale, multiresolution reconstruction method is presented that directly uses 2D images in order to develop 3D models. This method, based on a Shannon Entropy and conditional simulation, can be used for most of the available stationary materials and can build various stochastic 3D models just using a few thin sections.[56]
When writing this guide, we reached out to the marketer community to collect case studies and learnings about creative marketing strategies. Most of these examples are included throughout the guide, but some didn’t quite fit. So we included those loose ends here, from the perspective of four awesome marketers. What better way to wrap up this guide than with you, our community?
Vlogging has become huge on Youtube. Vloggers film multiple aspects of their daily lives whether they be mundane, like preparing breakfast, or exciting, like going on vacation. Businesses and entrepreneurs have slowly been invading the vlogging world lately; and in 2019, you can expect this practice to become even more popular. Reason? Vlogging gives your viewers a peek into your life and can help you form a better connection with your audience. https://m.youtube.com/embed/7bNPg8UbhaE
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