Their study, published recently in the journal Molecular Ecology, found that smaller, more isolated populations of zebras had lower genetic diversity-not a surprise. To find out, Larison and colleagues ran genetic analyses on 140 individual plains zebras-including seven animals with unusual coat patterns-from nine locations in Africa, including Nambia’s Etosha National Park and South Africa’s Kruger National Park. ( Read more about Larison’s research in her own words.) “The observation led me to wonder: Is part of the reason that I’m seeing so many is because this population is inbred?” says Larison, who studies the evolution of zebra stripes at the University of California, Los Angeles. A lack of gene flow can lead to inbreeding and ultimately infertility, disease, and other genetic defects. Migrating infuses populations with new genes, making it key to a species’ long-term survival. Habitat fragmentation caused by fences, roads, and human development have squeezed zebra populations, like the one in Lake Mburu, into small pockets of land, preventing some of the animals from migrating between herds. Though plains zebras are the least threatened of the three species, their numbers have dropped by 25 percent since 2002, with around 500,000 animals ranging from Ethiopia to South Africa. So biologist Brenda Larison found it striking that an unusually high number-an estimated 5 percent-of plains zebra living near Uganda’s Lake Mburo were abnormally striped. Such aberrations-often caused by genetic mutations that alter the production of melanin, a natural pigment-are generally rare among mammals. In 2019 in Kenya’s Masai Mara National Reserve, scientists recorded a polka-dotted foal, with white spots covering its dark-brown body. But in some cases, these African equines sport unusual color patterns, such as large, black splotches or golden coats with light-colored stripes. Anyone can tell you that zebras have distinctive black and white stripes.
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“This initiative is an important step towards ensuring area veterans are prepared to enter the IT workforce and obtain family-sustaining careers in one of the county’s fastest growing industries. “National Able Network is excited for the opportunity expand on our legacy of service to the veteran community by launching the Chicago Cook Technology Academy in partnership with Cook County and Microsoft,” said National Able Network President Matt Weis. Participants are trained in cloud development or cloud administration by National Able Network’s IT Career Lab expert instructors and upon completion will have the opportunity to interview for a full-time position in entry level IT fields with the Cook County Department of Veterans Affairs’ network of IT hiring partners. “Veteran skilling programs like the Tech Academy equip this adaptable and resilient workforce to transition from military service into the tech careers that are in greatest demand.” “More than 200,000 military members leave military service every year, yet hundreds of thousands of jobs remain unfilled in the IT industry because we don’t have enough people with tech training,” said Microsoft’s Vice President of Military Affairs Chris Cortez. The Tech Academy is available to all qualifying veterans but is tailored for service members transitioning out of the military. This is the second region in the nation to offer this programming. The Tech Academy programming is based on curriculum developed for Microsoft’s Software and Systems Academy and has been donated by Microsoft at no cost to Cook County. Thank you to Microsoft and National Able Network for partnering with the County to offer this great opportunity for County veterans to receive training in an industry that is thriving.” “I am incredibly grateful and admire those who have served this nation. “Ensuring veterans in Cook County are afforded equitable access to quality jobs is essential,” said President Preckwinkle. This free 7-week program, fully funded and run by Cook County, provides veterans with critical career skills in the technology industry. The 7-week program helps place veterans in tech industry jobs upon completionĬook County Board President Toni Preckwinkle joined County officials and representatives from National Able Network to announce the launch of the Chicago Cook Technology Academy (Tech Academy) today. But, as much as I love it there and it feels like home. I love Boston, and I’m always homesick for a return visit. I wasn’t sure what I wanted and didn’t really have any requirements, except that I knew I wanted to live in a city where I could find jobs, and somewhere that was very different from where I was living near Boston. When I moved to Phoenix, I was simply looking for a change. View Street Art in the Roosevelt Arts District Please read the disclosures to learn more. Some links in this article may be affiliate links, which means that if you purchase through them, I receive a small commission. Taliesin West, credit to Foskett Creative Courtesy of the Frank Lloyd Wright Foundation So, without further ado, here is the list of the top things to do in Phoenix, from a local’s perspective. This article will include things to do in and around metro Phoenix. And, some killer hotel and resort deals during the off-season. While winter is one of the most popular times for visitors you can find fun all year round. There are so many fun things to do in Phoenix, from exploring top-notch museums, seeing interesting and unique architecture, learning about the beauty of the desert, hiking the many mountains in and around the city, and enjoying the resorts and spas. I want to remedy that now as it’s really a great place to live and to visit. I have been remiss in writing about the fun things to do in Phoenix, Arizona, the place I have called home for more than ten years. After clicking the icon, a window will show up, prompting you to enter any of the codes.Players can follow these easy steps to redeem the code in the game: Open the Bee Swarm Simulator on Roblox. Bee Swarm Simulator Codes Free buffs, honey, & boosts (April 2023) R oblox Bee Swarm Simulator is perfect for those of you who want to live a life helping animals Play as a human. 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To see an interactive map of how many Domino's Chevy Bolt EVs are currently in each state and how many are coming soon, visit /evfleet.įounded in 1960, Domino's Pizza is the largest pizza company in the world, with a significant business in both delivery and carryout pizza. "In addition to business and environmental benefits, an electric delivery fleet also helps with hiring drivers, as they open up a whole new pool of job candidates who may not have their own vehicles." "We're continuing to see a wide range of advantages from using EVs," said Jordan. ONLY 7.99 Code Carry Out Pizzas Combo For 7.99 Each Verified Added by Shanna615 Show Coupon Code See Details ONLY 5.99 Sale Mix & Match Deal Choose Any 2 Or More For 5.99 Each Carryout 240 uses today Get Deal See Details ONLY 16.99 Code Large Topping Pizza & Loaded Tots For 16. Domino's is currently partnering with Enterprise Fleet Management, which offers local hands-on account management, vehicle acquisition, financing, telematics solutions and maintenance for the electric delivery fleet. Our stores and franchisees have continued to express their enthusiasm and interest around EVs, and they've ordered an additional 300-plus cars to be on the road by the end of the year."Įlectric vehicles provide several advantages for Domino's stores, including ample battery life with the potential to have days of deliveries, zero tailpipe emissions, advanced safety features and lower average maintenance costs than nonelectric vehicles. We are even more thrilled to announce that number is growing. "All 800 vehicles are on the road, delivering at various stores across the country. 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Otherwise, hop to a category that interests you or scroll through our picks:īest Overall Camper Trailer: Taxa Outdoors TigerMoth (Photo/Eric Phillips) If you have questions about camper trailers, check out the buyer’s guide and FAQ at the end of this article. Setups with solar panels, battery power, water tanks, and propane help us go even further off-grid and stay untethered longer.Īfter testing a wide variety of camper trailers, our team narrowed it down to the top 10 designs that suit a wide variety of trip goals and needs. Well-constructed trailers allow us to venture through and settle in closer to nature, away from everyday distractions. It can be less expensive than hotels, requires less maintenance and upkeep than a motorhome, and the tow vehicle can be used for trail and around-the-city duties. Using a camper trailer is an economical way of getting around for long and short journeys. Touring the country is a magnificent and popular adventure. If you have any questions regarding your tire size, speed rating and load index please contact us prior to purchasing and confirm with certified auto technician of any variance in speed and load index and sizes.From solo travelers to couples, families, and groups, here are the most reliable, enjoyable camper trailers for road trips and overland adventures. Please check your vehicle's Owner's Manual or consult with your mechanic regarding the changes of your tire's speed rating and load index. The speed and load index can differ from the tires you currently have mounted on your vehicle up to a degree. The tire's sidewall also features the speed and load rating, indicating the speed and load capacity of the specific tire. To ensure that you are purchasing the correct tire size for your vehicle, please check the size of your currently mounted tires (locate on the tire's sidewall). However, this tire size may be fitted on other vehicles as well. It is buyer's responsibility to verify whether a specific tire is suitable for a specific vehicle. It is buyer's responsibility to verify the tire size information. The most important aspect of purchasing a tire is its size, which cannot vary. Original Equipment size data is the best information we currently have available to us. size is determined by the year, make, model and options of the vehicle. IMPORTANT INFORMATION: Please note this is Original Equipment (O.E.) tire size only. This allows the tire to improve the overall driving safety levels. The rim guards protect the tire from accidental external damage as well. They avoid punctures, cuts, and impact damage to the casing, throughout the tire’s performance. The tire utilizes the DuraWall technology to protect the tire from harm. The Goodyear Endurance boosts the damage resistance. As a result, the tire improves the towing vehicle’s control throughout the performance. This construction does not allow the tire to deform under the load and driving pressure, boosting the overall load capacity. The stronger structure enables the tire to carry and withstand heavy load pressure. In this manner, the tire is quicker and more precise in its response to the towing vehicle’s instructions, while the structure is secured against the driving pressure affecting the model. The symmetric ribbed tread design keeps the surface contact, which boosts the steering responsiveness and driving stability. The symmetric ribbed tread design improves controllability. The tread’s circumferential grooves prevent hydroplaning by dispersing water and slush from the footprint, resulting in a safer year-round performance. The tread elements firmly grip the road surface at all times with the use of extra biting edges. The all season compound keeps the rubber flexible in versatile temperatures, while effectively preventing heat build-up along the footprint. The all season compound and the ribbed tread design improve the dry, wet, and winter weather grip on the road surface, resulting in a safer year-round performance. The tire increases the all weather traction. The model was manufactured for SPECIAL TRAILER USE ONLY, and it should not be mounted on light trucks. The Goodyear Endurance is a highway terrain, all season tire made for trailers. a) Illustration of the definition of the storage coefficient, which is the volume of water released from, or added to, storage per unit change in head normal to the earth’s surface per unit area. Storativity of an unconfined aquifer (dimensionless)Īverage thickness before and after a water level change (L)įigure 49 – Schematic of components of storativity ( S) of an unconfined aquifer. The storativity ( S) of an unconfined aquifer is composed of two components as shown in Equation 44. Specific yield reflects the volume of water that drains by gravity when the water table is lowered, or fills with water when the water table is raised (Figure 49). The storativity for an unconfined aquifer is dominated by the gravity drainage term, specific yield ( S y). Storativity is dimensionless and is expressed as a decimal. It is defined as the volume of water removed or stored per unit change in head normal to the earth’s surface over a unit area. Storativity describes the capacity of an aquifer to store or release water. The older term, storage coefficient, is also used to describe the same aquifer storage property. The storage capacity of an aquifer is referred to as the storativity, S. These data are then analyzed using analytical equations and/or numerical computer simulations to estimate transmissivity values (e.g., Lohman, 1972). Most commonly, T values are determined from carefully designed aquifer tests were wells are pumped while water levels are measured in nearby observation wells. Transmissivity values are often estimated by combining K values from laboratory tests or textbook tables with field measurements of aquifer thickness, b. Head of an unconfined aquifer decreases in the downgradient flow direction, so saturated thickness decreases ( b 1 > b 2) and so does transmissivity ( T 1 > T 2). b) In an unconfined aquifer, transmissivity needs to be defined at a specified location because saturated thickness depends on the hydraulic head (e.g., based on the elevation of the water table). a) In a confined aquifer of uniform geologic thickness, saturated thickness, b, is constant ( b 1 = b 2) even when the hydraulic head is different. Figure 48 – Transmissivity, T, is the product of hydraulic conductivity, K, and saturated thickness, b, of the aquifer. In areas with large water table gradients, average thickness may be used to compute one representative value of T. When the water table slope is small, a single value of T is commonly used to represent the aquifer. The saturated thickness of an unconfined aquifer varies with space as the water table slopes in the direction of flow, thus, T values change with distance from a given location (Figure 48b). By definition the head of a confined aquifer is higher than the top of the aquifer, so the complete thickness of the confined aquifer is saturated, thus b is a constant when T is determined. The transmissivity of a confined aquifer of uniform thickness is a constant value for an isotropic and homogeneous set of conditions as shown in Figure 48a. Aquifers with multiple horizontal layers with different hydraulic conductivities can be represented by the sum of the T value for each layer. The higher T of the second aquifer indicates that it can transmit more water, thus if all else is equal, it would be a better target for a water supply well. If another aquifer has a hydraulic conductivity of 50 m/d and is 300 m thick, its transmissivity is T = 15,000 m 2/d. For example, if the hydraulic conductivity of a confined aquifer is 100 m/d and the thickness is 10 m, then T is 1,000 m 2/d. Transmissivity describes the overall transmission capacity of an aquifer system, not just the properties of a small volume of the aquifer. The term transmissibility is an outdated term that is occasionally used for transmissivity. Transmissivity, the capacity of an aquifer to transmit water (L 2/T) Transmissivity is defined as the product of hydraulic conductivity, K, and saturated aquifer thickness, b, as shown in Equation 43. However, the capacity of an unconfined or confined aquifer to transmit water is described as transmissivity. When describing the transmission capacity of a small representative volume of porous media the hydraulic conductivity is used. The groundwater transmission and storage properties of geologic formations including aquifers and confining units can be described by three hydrogeologic terms: transmissivity, T specific storage, S s and storativity, S. 6.4 Properties of Aquifers and Confining Units |