There is a similar patch in the North Atlantic Ocean. For example, the Great Pacific Garbage Patch exists in the North Pacific Ocean between the U.S. Trash build-ups in the middle of gyres are known as garbage patches. The garbage makes its way into the center of the gyre, where it becomes trapped and builds up. The circular motion of the gyre draws in debris. The area in the center of a gyre tends to be very calm and stable. A gyre is a circular ocean current formed by the Earth’s wind patterns and the forces created by the rotation of the planet. The Widening Gyre Marine debris tends to collect in areas called ocean gyres. They continue to trap fish, along with marine mammals, turtles, and birds. Discarded fishing lines and nets don’t stop fishing once humans are done with them. Another type of marine debris that is harmful to sea life comes from fishing gear. Some of these toxins, such as mercury or bisphenol A, may be harmful to people, putting consumers at risk. Fish that are harvested may have a high amount of toxins or other marine debris in their system as a result of bioaccumulation. Fisheries shrink, weakening the area’s economy. A reduction in the fish population can impact human activity in the area. Top predators such as sharks or dolphins, which eat the fish, accumulate the most chemicals. A fish, already exposed to the chemical, ingests more bisphenol A when it eats the algae. Plants or algae may absorb bisphenol A through the water. Bisphenol A and other chemicals build up in the fish’s body through a process called bioaccumulation. Exposed fish produce fewer healthy offspring. Fish are especially at risk when exposed to bisphenol A. Bisphenol A can interfere with animals’ reproductive systems. One of those chemicals can be bisphenol A (BPA). As plastics get smaller and smaller, they release chemicals. When these organisms are threatened, the entire marine food web may be disturbed. Floating on the ocean’s surface, nurdles and other small plastic pieces can block the sun’s rays from reaching plants and algae that depend on the sun to create nutrients. The animals are at risk of malnutrition and starvation. When marine animals ingest nurdles, they can feel “full” although they are not getting nutrients. These tiny pieces of plastic can collect in the stomachs of marine animals, interfering with digestion. One example of microplastics is “ nurdles,” the manmade pellets of raw material used in making plastic products. Microplastics are pieces of debris between 0.3 and 5 millimeters (0.01 to 0.20 inches) thick, no thicker than a grain of rice. Instead, like many other types of plastic, they simply break down into tiny particles called microplastics. Cooler ocean temperatures prevent these products from truly degrading. These products are designed to break down when they heat up in a landfill or compost pile. Ironically, some new biodegradable plastics might not break down in oceans at all. And many sea animals and birds have become strangled by the plastic rings used to hold six-packs of soda together. For instance, loggerhead sea turtles often mistake plastic bags for jellyfish, their favorite food. Plastic products can be very harmful to marine life. The vast majority of marine debris, however, is plastic. Types of Debris Any kind of trash can get into the ocean-from glass bottles to aluminum cans to medical waste. Storms and accidents at sea can cause ships to sink or to lose cargo. The wind can even blow trash from landfills and other areas into the water. This debris is carried by storm drains, canals, or rivers. Sometimes, litter makes its way into the ocean from land. People often leave trash on beaches or throw it into the water from boats or offshore facilities, such as oil rigs. This manmade debris gets into the water in many ways. Marine debris is litter that ends up in oceans, seas, or other large bodies of water.
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It was manufactured by The Endocardiograph Company in Milwaukee, Wisconsin. Royal Lee, probably the largest publisher of unreliable and false nutritional information in the world in 1937. This 1940’s era endocardiograph machine was designed by Dr. It is missing some rubber feet.This is a great opportunity to own an early example of Burdick's original ECG - pre-dating not only the 1950 patent application but possibly even the 1949 acceptance of the machine by the AMA! Will ship FedEx, safely packed.This is the only one on ebay - don't let it get away. 1940’s Era Royal Lee Endocardiograph EKG Made in Milwaukee Vintage. The lid locks on nicely and the handle bears its incredible weight. Cardiographs Burdick 280 Cardiograph Manufacturer: Welch Allyn (HR) Product ID: MOR-BUR280-C1X 4,795. It is in great vintage condition, with some scuffs and scratches. Mortara Burdick EKG Cable 10 Leads Banana 929302150 Compatible Same Day. So, I brought it up slowly with my Variac: the light comes on when the power switch is thrown, the tubes glow, it feeds paper when set to "Record" and the needles respond a little to selecting different electrode types or turning the other adjustment knobs - not too shabby for an electro-mechanical devise that's over 65 years old! Even a doctor who was born on the same day that this came off the production line would be retired by now!I did not hook up any electrodes or try it out any further - that would have been stupid, since this is a vintage, collectible medical device which must not be used and therefore no functionality is guaranteed.It comes with:Power Cord 5 Electrode ECG Lead 4 Flat and one Cupped Electrodes A Tube of Burdick Electrode Paste (now dried out of course) A "Burdick ECG" Screwdriver Plus a little bit of paper and the remains of the rubber straps for securing the electrodes (now rotted, but there's one length that's sufficiently attractive to display). Vintage Burdick Portable EKG EK-8 Cardiac Electrocardiograph Machine. Burdick's first patent application for an ECG was in early 1950 (# 2674992), which is mentioned on the nameplates of later machines.Although this is being sold as a vintage, collectible medical device and not for use, I was curious to see what I could learn about it. Cardiac Science Burdick 8500 Product Safety Manual (48 pages) Electrocardiograph Brand: Cardiac Science Category: Medical Equipment Size: 3. I've dated it to 1949 as the youngest it could possibly be, due to the absence of any reference to "Patent Applied For", but it could be older. Up for sale is a Vintage Burdick Corporation Model EK-1 Portable EKG / ECG / Electrocardiograph, with power cord, ECG leads, paste tube, electrodes, even a "Burdick ECG" Screwdriver.Note: This is not the more common Model EK-2, but is their very first model. The parallelizable sequence of statements pragma indicates that a sequence of statements can be executed as parallel threads.Ģ. Our model consists of a standard sequential imperative programming notation extended with the following three pragmas:ġ. In this thesis, we present and investigate a parallel programming model that provides direct control of parallelism in a notation with sequential semantics. A window based scheduling policy is employed to schedule the iterations to the threads.Parallel programming is more difficult than sequential programming in part because of the complexity of reasoning, testing, and debugging in the context of concurrency. To detect the dependencies between footprints and for synchronization of threads at runtime, we use bit level operations. For pro ling the runtime information, shared and private data structures are used. More specifically, we introduce runtime check based parallelization technique for the static irregular references without dependency, Inspector-Executor based parallelization technique for static irregular references with dependencies, and finally Speculative parallelization technique (BitTLS) for dynamic irregular references with dependencies. In this article, we propose three different solutions to parallelize a loop having an irregularity in the array of array references, with and without dependencies. A conventional solution for such problem can be performing parallelization at runtime. However, optimization compiler fails when it encounters compile time unknowns in the program. When all the information required for parallel execution is known at compile time, then optimization compilers can reasonably parallelize a sequential program. For efficient utilization of computing resources, many optimization techniques have been developed, some techniques at compile time and some at runtime. However, the efficient utilization of these rich computing resources is still an emerging area. The advancement of computer systems such as multi-core and multiprocessor systems resulted in much faster computing than earlier. Finally, we exemplify our approach on an example OpenMP program, and we discuss how tool support is provided. Moreover, we also show that it is sufficient to establish functional correctness on a linearised version of the original program to conclude functional correctness of the parallel program. Our verification technique builds on the notion of iteration contract to specify the behaviour of basic blocks we show that if iteration contracts are manually specified for single blocks, then that is sufficient to automatically reason about data race freedom of the composed program. We show how a widely used subset of OpenMP can be encoded into this intermediate representation. This language distinguishes three kinds of basic blocks: parallel, vectorised and sequential blocks, which can be composed using three different composition operators: sequential, parallel and fusion composition. To develop our verification technique, we propose a simple intermediate representation (syntax and semantics) that captures the main forms of deterministic parallel programs. Moreover, the verification technique is tool-supported and can be combined with proving functional correctness of the program. This paper develops a verification technique to reason about such compiler directives, in particular to show that they do not change the behaviour of the program. AbstractA commonly used approach to develop deterministic parallel programs is to augment a sequential program with compiler directives that indicate which program blocks may potentially be executed in parallel.
Soundflower at it's core acts as virtual audio device that can take in various signals and output them to other places. However they also have a free product available on Mac which allows for internal audio routing named Soundflower. SoundflowerĬycling 74 is commonly acknowledged as the makers of the famous audio programming environment Max/MSP. These alternative applications usually can provide us with the much needed flexibility to our systems and allow greater internal routing. So what do you do if your DAW does not support being a Rewire client, and cannot be loaded as a VSTi, but you still need flexible internal routing? Thankfully there is more than one answer to that question, but they all involve 3rd-party software. Sure you could go bounce tracks back and forth between programs but isn't this so much nicer? This setup is great for individuals who are looking to combine FL Studio's powerful sequencer and synths with the ease and flexibility of audio editing (something FL is not so hot at). Once the VSTi is loaded, enter the plugin and reload your FL Studio project.Load the appropriate version of the FL Studio VSTi depending on your track needs.Open up your favorite DAW (typically an editing/mixing DAW in this case).Craft any necessary tracks, sounds, etc.Additionally, FL Studio in this manner can be controlled via MIDI and automatically syncs tempo with the host DAW. This feature allows either a stereo pair or 16 stereo tracks to be sent from FL Studio back to the main host depending on which VSTi is chosen. As a VSTi VST API by SteinbergĪ little known feature of FL Studio is the ability to load the entire DAW as a VSTi plugin inside another DAW. FL Studio for example can be hooked up in the exact same manner as Reason. You should double check your favorite DAWs manual for the exact Rewire implementation, but any additional overhead should be minimal.īut what if you do not use Reason? Well, your favorite DAW might just be capable of being a Rewire Client. Next simply open up your Rewire Client DAW (typically Reason itself) and it should slave to the first DAW.This will become the Rewire Host which will take in the feed in from the opposing DAW. Being one of the first of its kind, nearly every major DAW has adopted Rewire capabilities in some capacity. Rewire is a virtual port between to compliant applications in which one DAW acts as the Rewire Host and the other as the Rewire Client. But it has always come with one little hiccup, how to get those pretty sounds into a more editing/mixing focused DAW? Their answer? Rewire! Let's take a look at some of the available options: Rewire and Reason Rewire by PropellerheadĬrafted by Propellerhead, Reason is one of the top sequencing/synthesis DAWs ever made. Most often these solutions are highly flexible and work best between two DAWs and less with consumer applications. Some DAWs have built in functionality for connecting themselves to another DAW or audio program. Sometimes going native is the best approach, but before you go running around in a loin cloth and hunting with a spear, allow me to explain. And while this was all well and good, it sacrificed stability for flexibility.īut what about third-party middle-man software to take the interface mixers place? Would such a thing exist? Can we have more flexible internal routing options? The answer to these and all life's questions are below! OK maybe not the life questions part. To do so we utilized a first-party middle-man software in the form of the interface mixer. Last time we took a look at the core essentials of routing audio between programs inside our computers. Welcome back for another round of internal audio routing. After this, the young button-quails can fend for themselves. Once hatched, the tiny little chicks fledge right away and the male feeds them for the next ten days or so. The male then incubates the young until hatching. After mating, the female builds a domed nest near the ground in a shrub or grass tussock, and lays three or four small white eggs. They are polyandrous, with one female mating with several males in an area. Unlike most birds, it’s the brightly coloured female who calls, and attracts a male. Their behaviour is certainly very unusual! Although they look a lot like quails, DNA analysis suggests that button-quails are quite distant from all living groups of birds. Until now, they’ve escaped Bonnie’s efforts to capture a photo and confirm identification as Painted Button-quail! The two birds seen here were resting quietly together.īutton-quails are a truly Australian group of birds. The young are particularly vulnerable to cat attack and are often the hit by cars as they scurry across the road, so p-lease be alert to these little guys when driving.Īs the Buttonquail is a vulnerable species due to habitat loss, it is wonderful to know that there are pockets of these beautiful birds locally.Connecting Country staff member Bonnie Humphreys has seen small, quail-like birds wandering around her garden for weeks, even on her doorstep. They run rather than fly, and if they fly it is just above the ground, they are rarely found perching. The feathers on the back and wings of the Painted Button-quail are amazing they do look like the feathers have been painted on in chestnut and black with white streaking and provide perfect camouflage when predators are near, by simply sitting down and blending into the forest floor.īutton-quails are often seen in small groups foraging during the daytime together, and nesting at night by hiding in nooks amongst the leaf mulch. The female is a bright chestnut across the shoulder with crown, face and chest flecked white. Like chickens they scratch round areas and seek out their food from under the mulch, each area scratched is only about 8 cm in diameter, just perfect for a seed to fall into and, due to their size they provide a low impact solution for bug control on the forest floor. The Painted Button-quail prefers to live in lush understorey, with a forest floor alive with bugs and grubs to feast upon. This species of Quail is also expert at performing the “broken wing” act used to lead predators away from its nest. She lays 4 eggs and leaves the male to incubate the eggs and raise the young, whilst the female may wonder off to find a new mate and repeat the whole process, leaving each mate raising a family. The female makes all the advances at mating time and does all the fighting for territorial rights. These tiny critters are more often than not quails, and one of the species of quails found locally is the Painted Button-quail, which is considered to be vulnerable.īutton-quails are very similar in habits and look to true quails they differ most significantly in appearance by having only 3 toes (true quail’s have 4) and in habit by the reversal of sexual roles between males and females. Most of us here in the local area have seen small roundish birds running across the roadway in front of our cars or darting off into the grass alongside the road. So, you should consider bookmarking our Michigan Reverse Phone Lookup white pages search, so that you can quickly and easily look up everything you need, in just a few moments and completely free of charge. 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In particular, look for the Southern Black Widow. While the black color is not necessarily distinctive, it’s important to be able to spot black spiders that are venomous and harmful to humans. The Black Widow’s bite is extremely toxic – luckily, an excellent antivenin exists, but you must be alert enough to recognize the symptoms and seek medical attention. In the US, there are multiple types of Black Widows – including the Southern Black Widow ( Latrodectus mactans), Northern Black Widow ( Latrodectus hesperus) and Western Black Widow ( Latrodectus variolus). The species to watch out for is the deadly Black Widow Spider. Tarantulas, including the recently named Aphonopelma johnnycashi, namedĪfter the famous Man in Black, Mr. There are some 4000 species of Black Jumping Spiders ( PhiddippusĪudax being a common one) found worldwide. Theīlack House Spider ( Badumna insignis) is a dark robust spider foundĮverywhere. Thousands of species of black colored spiders found all over the world. Name association with the deadly Black Widow spiders – so named due to theįemale of the species eating their partners after mating. Brown tarantulas are common all over theīlack spiders often invoke fear, due to the Wolf Spiders abound in AustraliaĪnd the US, as do Mouse Spiders. The Brown Violin Spider is found in Hawaii. c)īrown spiders are found on every continent.īrown Recluses are found in a broad belt across the entire breadth of the US. Tarantulas can be identified by their hairy legs and bodies – they are typically not harmful to humans despite their scary appearance. Hobo Spiders have brown bodies and yellow markings on their abdomens. The North Carolina Wolf Spider has a distinctive Union Jack impression on its back. Though the Wolf Spider is sometimes mistaken for a Brown Recluse, they are distinctly different – larger in size, with 8 striking eyes arranged in three tiers and spines on its legs. The Brown Violin Spider has its own distinctive violin mark on its combined head and midsection. They also have six eyes instead of the normal 8 found among spiders. Ranging in size from ¼ inches to 1 inches, the Brown Recluse Spiders are characterized by a dark violin shape at the top of its leg attachment, with the neck pointing towards the abdomen. For example, the Texas Brown Tarantula ( Aphonopelma hentzi) is a large, dark brown spider common to the Southern United States. The Mouse Spider ( Scotophaeus Blackwalli) has a brown body and bright red head.įinally, there are many brown or tan colored tarantulas found over the world. Hobo Spiders ( Tegenaria agrestis) pack a venomous punch in their small (less than 1 inch) bodies. The ones found in the US are mottled gray to brown in color and between 1 inches to 2 inch in body length – the North Carolina Wolf Spider ( Hogna carolensis) is the largest.Īustralian Wolf Spiders tend to be larger than their American cousins. Adult Wolf Spiders are also venomous, but not lethal to humans. Recluse spiders are not always aggressive but will bite if threatened. Their venomous bite can cause significant damage to subcutaneous tissue, leading to necrosis. The deadliest spider found in North America is the Brown Recluse ( Loxosceles reclusa). a)īrown spider species are extremely common. Spiders, including some of its most venomous and aggressive species such as theīrown Recluse, Wolf Spiders, Hobo Spiders and Mouse Spiders. Spider below, before going on to the more exotic varieties. As a result, they reflect all sunlight and appear pearly white or silvery in color. But with structural colors, the angle at which light hits the wings as they flutter will cause the color to change – a shimmering effect we call iridescence.įinally, some spiders build up significant deposits of guanine on their scales. Natural pigmentation stays the same whenever or wherever you see it. On the other hand, spiders can show bright blue, green, red, pink or purple coloration on their bodies, legs or chelicerae due to structural colors created by photonic cells reflecting certain bands of light. Many colors come from actual pigments in a spider’s scales – brown and yellow shades come from melanin, the same pigment we humans have.
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