The electron beam, which typically has an energy ranging from 0.2 keV to 40 keV, is focused by one or two condenser lenses to a spot about 0.4 nm to 5 nm in diameter. The beam passes through pairs of scanning coils or pairs of deflector plates in the electron column, typically in the final lens, which deflect the beam in the x and y axes so that it scans in a raster fashion over a rectangular area of the sample surface.

An account of the early history of SEM has been presented by McMullan.[2][3] Although Max Knoll produced a photo with a 50 mm object-field-width showing channeling contrast by the use of an electron beam scanner,[4] it was Manfred von Ardenne who in 1937 invented[5] a true microscope with high magnification by scanning a very small raster with a demagnified and finely focused electron beam. Ardenne applied the scanning principle not only to achieve magnification but also to purposefully eliminate the chromatic aberration otherwise inherent in the electron microscope. He further discussed the various detection modes, possibilities and theory of SEM,[6] together with the construction of the first high magnification SEM.[7] Further work was reported by Zworykin's group,[8] followed by the Cambridge groups in the 1950s and early 1960s[9][10][11][12] headed by Charles Oatley, all of which finally led to the marketing of the first commercial instrument by Cambridge Scientific Instrument Company as the "Stereoscan" in 1965, which was delivered to DuPont.
SEM search placements include an “Ad” designation. SEO does not. Search results that appear as a result of SEM or SEO look different on SERPs. Paid ads that receive placement through SEM tactics are often identified as an ad (e.g., by an icon appearing next to the placement), whereas the search results that appear as a result of organic SEO are not marked in such manner.

Most online marketers mistakenly attribute 100% of a sale or lead to the Last Clicked source. The main reason for this is that analytic solutions only provide last click analysis. 93% to 95% of marketing touch points are ignored when you only attribute success to the last click. That is why multi-attribution is required to properly source sales or leads.
The most common SEM mode is the detection of secondary electrons emitted by atoms excited by the electron beam. The number of secondary electrons that can be detected depends, among other things, on specimen topography. By scanning the sample and collecting the secondary electrons that are emitted using a special detector, an image displaying the topography of the surface is created.

He goes on to say that some of their videos might be seen as ‘edgy.’ However, HubSpot try not to be too conservative. Instead, they actively encourage video creators to be creative and take risks. Think your B2B audience can’t handle humour? Dharmesh makes an excellent point: the HubSpot audience is primarily B2B (but that won’t hold them back from being entertaining). Don’t feel constrained by what’s gone before you in your industry and don’t try to emulate your competitor’s stiff tone and yawnsome script. Stand out and take a chance on being funny. https://www.youtube.com/watch?v=e29F5n3ea0I&hc_location=ufi
SEM, on the other hand is paid placements. It’s a straightforward way to get in front of potential customers in a cost-effective way. If you bid on the right keywords, have an enticing ad, and a personalized landing page that corresponds to your ad, you’ll be able to generate business almost immediately. That’s not to say, it’s easy. You need to know the ins and outs of the advertising platform you’re using and have patience. It takes time to optimize your ads and landing pages and start seeing the kind of results that impact your business’ bottom line.
We help clients increase their organic search traffic by using the latest best practices and most ethical and fully-integrated search engine optimization (SEO) techniques. Since 1999, we've partnered with many brands and executed campaigns for over 1,000 websites, helping them dominate in even highly competitive industries, via capturing placements that maximize impressions and traffic.

All sites have a home or "root" page, which is usually the most frequented page on the site and the starting place of navigation for many visitors. Unless your site has only a handful of pages, you should think about how visitors will go from a general page (your root page) to a page containing more specific content. Do you have enough pages around a specific topic area that it would make sense to create a page describing these related pages (for example, root page -> related topic listing -> specific topic)? Do you have hundreds of different products that need to be classified under multiple category and subcategory pages?
Internet Live Stats claims that there are over 66,000 searches per second on Google each day. (Note that this is figure was taken at the time of writing – if you click on the link you’ll likely find a different number, as data from this source is collected in real time.) That’s a lot of activity for any given business to compete with and is why SEO is such an important (but tricky) area of digital marketing to know. 
Search results are presented in an ordered list, and the higher up on that list a site can get, the more traffic the site will tend to receive. For example, for a typical search query, the number one result will receive 40-60% of the total traffic for that query, with the number two and three results receiving significantly less traffic. Only 2-3% of users click beyond the first page of search results.

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

This isn't about off-the-shelf solutions. You need to really convey something illustrious and beautiful, then fill it with incredible MVP content. Over time, this will become a thriving hotbed of activity for you, where people will come by and check-in repeatedly to see what you're talking about and what value you're delivering. Keep in mind that this won't happen quickly. It will take years. Yes, I said years.
Once the company has identified the target demographic for its Internet marketing campaign, they then decide what online platforms will comprise the campaign. For instance, a company that is seeking customers from the 18 to 33 demographic should develop a mobile application that raises awareness about the product, such as a game, a news feed, or a daily coupon program users can download for free.

Some marketers believe that there are "tricks" that will improve the relevancy of sites within the search engines that are spider- (crawler-) based. Not only do some of these tricks not work; many of them can result in negative relevance penalties as the engines take measures to punish search marketers seeking to manipulate ranking and relevance. That said, there are still compelling reasons to put legitimate efforts behind organic SEO optimization, particularly efforts in site design, content formatting, content clarity optimization, and server platform adjustments.
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.
Around the world, 91 percent of consumers are likely to reward brands for authenticity and share the brand with friends and family, and 62 percent are likely to purchase from or show greater interest in purchasing from a brand that authentically expresses itself. Interestingly, U.S. consumers were less likely to build trust with new brands as compared to others globally, particularly the openness expressed by Asian consumers. For U.S.-based businesses marketing domestically, video content is the key to building trust.
Another example when the “nofollow" attribute can come handy are widget links. If you are using a third party's widget to enrich the experience of your site and engage users, check if it contains any links that you did not intend to place on your site along with the widget. Some widgets may add links to your site which are not your editorial choice and contain anchor text that you as a webmaster may not control. If removing such unwanted links from the widget is not possible, you can always disable them with “nofollow" attribute. If you create a widget for functionality or content that you provide, make sure to include the nofollow on links in the default code snippet. https://www.youtube.com/v/7bNPg8UbhaE&feature=share

Fixation is usually performed by incubation in a solution of a buffered chemical fixative, such as glutaraldehyde, sometimes in combination with formaldehyde[20][21][22] and other fixatives,[23] and optionally followed by postfixation with osmium tetroxide.[20] The fixed tissue is then dehydrated. Because air-drying causes collapse and shrinkage, this is commonly achieved by replacement of water in the cells with organic solvents such as ethanol or acetone, and replacement of these solvents in turn with a transitional fluid such as liquid carbon dioxide by critical point drying.[24] The carbon dioxide is finally removed while in a supercritical state, so that no gas–liquid interface is present within the sample during drying. https://www.youtube.com/watch?v=7bNPg8UbhaE&app=desktop
Dharmesh Shah, Founder and CTO of HubSpotsays it best: “The worst thing to do is make a completely boring video. Videos that are pure marketing puff pieces don’t spread.” So what do your audience want instead? They want to laugh, they want to feel enlightened, they want to be pulled out of their boring 9 to 5s and forget about their realities. HubSpot don’t take themselves too seriously – Dharmesh insists that humour works well for their video marketing campaigns.
This isn't about off-the-shelf solutions. You need to really convey something illustrious and beautiful, then fill it with incredible MVP content. Over time, this will become a thriving hotbed of activity for you, where people will come by and check-in repeatedly to see what you're talking about and what value you're delivering. Keep in mind that this won't happen quickly. It will take years. Yes, I said years.
Organic search is extremely important for online retailers, as many studies suggest it drives around 50% of website traffic. When it comes to search engine optimization for eCommerce, marketers get obsessive about testing all methods available to them to try and achieve higher rankings. The logic is very simple: higher positions on SERPs automatically result in higher impressions and a significantly better click-through rate. More people visiting your store should ultimately translate into better conversions and higher revenues.   https://youtu.be/7bNPg8UbhaE
×