![]() ![]() This view has been recently challenged by a growing body of evidence indicating that many features of sleep are essentially local and that islands of sleep- and wake-like activity may coexist in different brain areas ( Siclari and Tononi, 2017).ĮEG slow waves of NREM sleep occur when neurons become bistable and oscillate between two states: a hyperpolarized down-state characterized by neuronal silence (off-period), and a depolarized up-state during which neurons fire (on-period) ( Steriade et al., 2001). Given these differences, it has been commonly assumed that wakefulness, NREM sleep, and REM sleep represent mutually exclusive “global” states. ![]() ![]() Although REM sleep is characterized by rapid eye movements (EMs) and muscular atonia and by a tonically “activated” (low-voltage, high-frequency) EEG resembling that of wakefulness ( Aserinsky and Kleitman, 1953 Dement and Kleitman, 1957), hallmarks of NREM sleep include high-amplitude, slow waves (≤4 Hz) and spindles (12–16 Hz) ( Steriade et al., 1993, 2001). Based on electrophysiological hallmarks, sleep is divided into non-rapid eye movement (NREM) sleep and REM sleep. Sleep is characterized by relative quiescence and reduced responsiveness to external stimuli. These findings indicate that REM sleep is a spatially and temporally heterogeneous state and may contribute to explaining its known functional and phenomenological properties. In particular, we identified two distinctive clusters of delta waves with different properties: a frontal-central cluster characterized by faster, activating “sawtooth waves” that share many characteristics with ponto-geniculo-occipital waves described in animals and a medial-occipital cluster containing slow waves that are more similar to NREM sleep slow waves. By analyzing high-density EEG recordings collected in healthy adult individuals, we show that REM sleep is characterized by prominent delta waves also in humans. SIGNIFICANCE STATEMENT The EEG slow wave is typically considered a hallmark of nonrapid eye movement (NREM) sleep, but recent work in mice has shown that it can also occur in REM sleep. Sawtooth waves, which are exclusive to REM sleep, share many characteristics with ponto-geniculo-occipital waves described in animals and may represent the human equivalent or a closely related event, whereas medial-occipital slow waves appear similar to NREM sleep slow waves. Therefore, delta waves are an integral part of REM sleep in humans and the two identified subtypes (sawtooth and medial-occipital slow waves) may reflect distinct generation mechanisms and functional roles. We identified two clusters of delta waves with distinctive properties: (1) a frontal-central cluster characterized by ∼2.5–3.0 Hz, relatively large, notched delta waves (so-called “sawtooth waves”) that tended to occur in bursts, were associated with increased gamma activity and rapid eye movements (EMs), and upon source modeling displayed an occipital-temporal and a frontal-central component and (2) a medial-occipital cluster characterized by more isolated, slower (<2 Hz), and smaller waves that were not associated with rapid EMs, displayed a negative correlation with gamma activity, and were also found in NREM sleep. Here, we investigated the presence and cortical distribution of negative delta (1–4 Hz) waves in human REM sleep by analyzing high-density EEG sleep recordings obtained in 28 healthy subjects. Although the EEG slow wave of sleep is typically considered to be a hallmark of nonrapid eye movement (NREM) sleep, recent work in mice has shown that slow waves can also occur in REM sleep.
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![]() > BUT, I still cannot figure out why I cannot just installed Adobe Reader ONLY (not Acrobat, not DC version). > The laptop is also running Lightroom Classic using my AdobeCreative monthly plan - and that's running fine and the latest version. ![]() ![]() Compare PDFs and redact sensitive information. Convert PDFs into file types like Word, PowerPoint and Excel. > I cannot remember all the things I tried, but I did manage to uninstall "Acrobat" - which felt like more than just 'Reader". Access industry-leading creative software like Adobe Photoshop, Illustrator, InDesign, Premiere Pro, Adobe Express, and many more. View and print PDFs (including on small screens with Liquid Mode) Share and comment on PDFs. It also failed to allow me to use Windows File Explorer to preview pdfs (which is a most on my end). So I have repeatedly downloaded the installer. Click the triangle next to Open With, and choose Adobe Acrobat Reader or. First of all, I thought I already had Adobe Acrobat Reader DC, but I cant find it. > The first time I tried, I used the Adobe Reader install that the web page below direct me too. What it installed was WAY more than I wanted and it was too SLOW to open any pdfs. Adobe Acrobat Reader is the worlds most trusted PDF reader and PDF editor with more than 635 million installs. Click the PDF files icon in the Finder to select it. You will need to first uninstall Adobe Acrobat Reader (if one is installed). Opening a downloaded PDF file in the system viewer will open the PDF in your. Téléchargez gratuitement le logiciel Adobe Acrobat Reader pour vos appareils Windows, Mac OS et Android afin de visualiser, imprimer et commenter vos documents PDF. different than the built-in Chrome PDF viewer. > I am trying to get Adobe Reader ONLY (not the DC - I do NOT want Document Cloud storage, just a clean, READER ONLY with zero bloat add-ons/ trials/ cloud options, etc.) installed in a 圆4 laptop (running W10 w/ all its updates). Download free Adobe Acrobat Reader software for your Windows, Mac OS and Android devices to view, print, and comment on PDF documents. So, apologize if this was posted elsewhere here, but at this point the frustration (and time wasted) is too much. I searched the forum in case answer was clear elsewhere, but that was not clear either. Paired with Brilliant Black, the wheel and tyre scrubbed up rather well. Testing on one of the dirtier front wheels, One Minute Wheels easily and quickly removed the light dirt when sprayed on and wiped off. ![]() Indeed, our efforts with One Minute Wheels proved it is exactly that. Greased Lightning told us that it brought out World Class wheels partly in response to some people’s unrealistic expectations of One Minute Wheels.Īccording to Greased Lightning, One Minute Wheels is a quick cleaner, not a deep cleaner, meant for fast and frequent touch-ups to keep wheels fairly clean and presentable. Greased Lighting has two products: a quick detailer-type option (One Minute Wheels) and one for deeper cleans (World Class Wheels). We used the Greased Lightning products for each of their intended purposes, testing how each of them performed in the real world. Plus, purchasing a bigger size of your favorite all-purpose cleaner is easier - both on your pocket and the environment - than buying smaller bottles more often.It was chosen for its need to be cleaned over its photogenic-ness (for photographing a cleaning test, silver or white cars are not great). ✔️ Size: Small bottles of spray cleaners are usually best for small, targeted areas, like walls, counters and stovetops, while larger bottles that can be diluted are well-suited for big jobs and cleaning large areas, like floors and outdoor furniture. Wipes are great for quick clean-ups of small messes or to use in your car interior. For these cleaners, wipe with a damp cloth or paper towel to remove the excess cleaner. Some liquid and foaming multi-purpose cleaners leave behind a soapy residue on the surfaces you clean. Which you choose depends on the job you need to do and which you find easiest and most convenient to use. You can even find them in paste and wipe form. Others are liquids that you dilute with water in a bucket or basin. ✔️ Form: Most all-purpose cleaners come as trigger sprays, ready to use straight from the bottle. Even if an all-purpose cleaner says it can be used on a particular surface, spot-test the product on a hidden corner to be sure that it won't cause any damage. These multi-purpose cleaners can usually clean most non-porous surfaces, but it is still important to make sure the surface you want to clean is clearly listed on the label. ✔️ Surfaces: Although these cleaners have "all-purpose" in their name, not all can actually be used on all surfaces. There are just a few things to consider when shopping for the best all-purpose cleaner for your home. It can be overwhelming to make a purchase for something you will be using all around your home when you have hundreds of different options online. ![]() These are the best all-purpose cleaners in Good Housekeeping Institute tests. Finally, we review the label for any appropriate and required safety warnings and other claims. We assess how easy they are to use and rinse off and how much streaking, film or residue they leave behind. When we test all-purpose cleaners in our Good Housekeeping Institute Cleaning Lab, we evaluate how quickly and completely they dissolve grease and other soils we apply to our wall, floor, countertop, tile and appliance test surfaces. We offer many professional-grade kitchen degreaser cleaners that are specifically formulated for the materials commonly soiled in kitchen settings. Power through stubborn grease on your stove, in your oven and on your kitchen surfaces with a degreaser. They are available in all sizes and scents, plus there are options with vinegar, bleach and plant-based ingredients.Īt the Good Housekeeping Institute Cleaning Lab, we test hundreds of products every year, from major appliances like washing machines and dishwashers to floor cleaners and vacuums of all sizes. Tackle Tough Grease and Grime With a Degreaser. The best ones will cut through grease and wipe up grime without tough scrubbing or leaving any residue behind. They are safe to use for tackling messes on a variety of surfaces across all the rooms of your home, from countertops, painted walls, floors, appliances, and bathroom and kitchen surfaces. We updated this article in June 2022 to add more information about each featured product, based on extensive testing done by the Good Housekeeping Institute, a new pick for best wipes, best with vinegar and best with bleach all-purpose cleaner.Īn all-purpose cleaner is a space saver and an important tool in every home's cleaning toolbox. ![]() The only thing worse than not having a security system is having a system that is not configured properly. The Setup Wizard will automatically launch upon the initial startup of your DVR and walk you through the crucial steps of setting up the DVR properly. ![]() Since every user requires a unique configuration for their security system Night Owl has launched an easy to use quick Setup Wizard. Professional Digital Video Recorder (DVR)Ĭonfiguring your DVR for the first time does not need to be complicated. The free service works with all Internet Service Providers and allows a seamless connection to your DVR. The included free Night Owl DDNS Service will allow you to access the system remotely without the need for a static IP. Purchase up to 100 different PRO series security kits and access all of them at once with the included CMS software. The included Control Management Software (CMS) for PCs gives you the ability to monitor multiple locations on one screen. This system is still accessible over the Internet via PC and MAC computers but Tablets and Smartphones are the future for business and personal communication. PC and MAC connectivity with free CMS Software: There is no need for a computer because you can monitor, program or configure your security system on the go. If you want to change the settings on your DVR while you're on vacation you can do that with the Night Owl Pro app. With push notifications you will be instantly alerted of an intrusion and can even playback the file in the palm of your hand. The free app allows you to view all 8 channels at once as well as playback audio and video files directly on your smartphone. Unlike most security systems in the marketplace, this Night Owl DVR does not require the user to connect to a PC in order to replay video files. Our Free Apple and Android based App 'Night Owl Pro' gives you the ability to be constantly connected to your system. Viewable anywhere in the World on your Smartphone or Tablet With 960H recording and HDMI output, you will clearly see the difference. This new standard was designed to fit the most recent monitors and TV's. So images are crisper and clearer than both CIF and D1. 960H allows you to record at a resolution of 960 by 480 horizontal TV lines. Now, security and peace of mind is in the palm of your hand!ĥ times larger than CIF and over 33% larger than D1, 960H is the perfect resolution to fit your widescreen TV or monitor. Multi-gesture technology to switch channel views.Configure your DVR from your Smartphone.Receive motion activated push notifications directly to your Smartphone or tablet.View, configure, and playback recorded Audio and Video files on your Smartphone or table.Our Sophisticated Night Owl Pro App allows you to: Video is never on any 3rd party server, ever! Once setup is complete, the customer's cameras and Smartphone operate as peer to peer devices. ![]() The product server authenticates and configures the customer's hardware, and that's it. It is important to note that the Owl Scan setup process is completely private and secure: no video is ever transmitted to our server. With Night Owl's free Owl Scan Smartphone App, setting up your security cameras is as easy as scanning a barcode at a retail stores' self-checkout! With 3 Easy steps, you will be viewing your cameras in no time! Quick, Easy & Secure Setup with Owl Scan - Free Smartphone AppĮase of setup is one of the top concerns for potential video surveillance customers.
Easy to carry around the site.” The same reviewer went on to add, “I’m glad I tried this model. Oil-less, so it can sit in a couple different positions. According to one buyer: “Beautiful little workhorse. ![]() I would recommend to everyone!” And another customer said, “The most incredibly quiet air compressor I’ve ever used and I’m a pro that has used probably 50 different types.”Ĭustomers also appreciated how easy it is to move and maneuver this air compressor. ![]() The product is right and the price is right. I can talk to my workers or customers even when it is refilling. As one reviewer wrote, “Oh yes! This is another awesome product from DeWalt. Compact and lightweight, weighing in at just 36 poundsĪt the time of writing, the DEWALT DWFP55130 Heavy Duty 200 PSI Quiet Trim Compressor had a total of 150 customer reviews, and an average rating of 4.6 out of 5 stars.īuyers were very impressed by how quiet the DEWALT DWFP55130 Heavy Duty 200 PSI Quiet Trim Compressor is, especially when compared to other air compressors.Low 12-AMP draw motor means easier start up and less breaker tripping.Oil-free pump for extended, maintenance-free operation.Product Dimensions: 21.6 x 17.4 x 13.8 inches.And the oil –free pump is not only durable, it also provides extended, maintenance-free operation. The DEWALT DWFP55130 Heavy Duty 200 PSI Quiet Trim Compressor has been engineered to operate at a low, 71.5 dB noise level, making it one of the quietest air compressors you’re likely to find on the market. So loading it into a truck, or maneuvering it around a job site, is a breeze. And, at just 14 inches wide, it has a compact design. Weighing in at just 36 pounds, the DEWALT DWFP55130 is lightweight, making it easy to carry and transport. The DEWALT DWFP55130 Heavy Duty 200 PSI Quiet Trim Compressor is powerful, durable and portable. ![]() Then p(y) should 99: be true for objects y of type S where S is a subtype of T. Barbara Liskov and Jeannette Wing formulated 95: the principle succinctly in a 1994 paper as follows: 97: Subtype Requirement: 98: Let p(x) be a property provable about objects x of type T. 92: It is a semantic rather than merely a syntactic relation because it 93: intends to guarantee semantic interoperability of types in a hierarchy, 94: object types in particular. More formally, the Liskov substitution principle (LSP) 89: is a particular definition of a subtyping relation, called (strong) 90: behavioral subtyping, that was initially introduced by Barbara Liskov in 91: a 1987 conference keynote address entitled Data Abstraction and Hierarchy. 83: Substitutability is a principle in object-oriented programming that states 84: that, in a computer program, if S is a subtype of T, then objects of type 85: T may be replaced with objects of type S (i.e., an object of the type T 86: may be substituted with its subtype object of the type S) without altering 87: any of the desirable properties of that program (correctness, task 88: performed, etc.). 77: The (Liskov) Substitution Principle 78: A variable of a given type may be assigned a value of any subtype, and a 79: method with a parameter of a given type may be invoked with an argument 80: of any subtype of that type. 7: class Rectangle 8: ħ4: /* 75: In Java, S is a subtype of T if S extends or implements T. be careful when you extend a class that 5: //the derived class really does satisfy the "is a" relationship. ![]() class LiskovSubstitutionPrincipleViolatedġ: //LiskovSubstitutionPrincipleViolated.java 2: //Illustrates a violation of Liskov's Substitution Principle, for 3: //which see the Wikipedia description quoted at the end of this 4: //file. Use inheritance when you want to alter the behavior implemented by the non.LiskovSubstitutionPrincipleViolated.java Source of LiskovSubstitutionPrincipleViolated.java |
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