It's no secret that greenhouse gases warm the planet and that this has dire consequences for the environment whole islands swallowed up by rising seas, animal and plant species stressed by higher temperatures, and upsets in ecological interactions as populations move to cooler areas. However, carbon dioxide has another, less familiar environmental repercussion: making the Earth's oceans more acidic. Higher levels of carbon dioxide in the atmosphere mean that more carbon dioxide dissolves in the ocean. This dissolved carbon dioxide forms carbonic acid the same substance that helps give carbonated beverages their acidic kick. While this process isn't going to make the ocean fizzy anytime soon, it is introducing its own set of challenges for marine organisms like plankton and coral.

The pork chops you buy in the supermarket neatly packaged in plastic and styrofoam may look completely sterile, but are, in fact, likely to be contaminated with disease-causing bacteria - and not with just any old bugs, but with hard-to-treat, antibiotic resistant strains. In a recently published study, researchers with the National Antimicrobial Resistance Monitoring System bought meat from a wide sampling of chain grocery stores across the country and analyzed the bacteria on the meat. Resistant microbes were found in 81% of ground turkey samples, 69% of pork chops, 55% of ground beef samples, and 39% of chicken parts.

The next time you are in the kitchen, try this experiment: pick up a box of butter (four sticks) in one hand and a box of saltines (four packets) in the other. Which is heavier? If you said the butter, you are not alone. Most people would identify the box of butter as the heavier object even though, if you look at the labels, you'll see that they both weigh exactly one pound! This is an example of the size-weight illusion, and it is incredibly common. Read more to see the evolution (and baseball) connection ...

This book is NOT about assembly language programming. There is assembly language sprinkled throughout the book, so you will in fact learn assembly language—but only as a means to a different end, the latter being understanding of computer systems. Specifically, you will learn about high-level hardware, the large differences between one machine and the next, and low-level software, meaning operating systems and to some degree compilers.

The necessity of teaching LGBTQ history has never been more apparent than in the current political climate. Over the past year, hundreds of anti-LGBTQ laws have been proposed across the country. Several have specifically attempted to prohibit teaching about these topics. California educators remain committed to an inclusive curriculum and continue to lead the charge modeling best practices in teaching LGBTQ history.

But, the path has not always been clear. When California educators started to implement this flagship law, SB48, otherwise known as the FAIR Act, which called for inclusion of LGBTQ Americans in U.S. history courses at the K-12 level, so many questions arose. Most of the discussion has centered around how to make our curriculum more inclusive while efficiently managing our limited instructional time.

One of the key issues has been about whether to create stand-alone or integrated lessons. Stand-alone lessons are significant because they allow students to do a deep dive into a specific topic. This can be useful when addressing big issues in the LGBTQ past. Here are a few examples of lessons that do just that:

This is a primary source photo collection on Californios, elite families that received large land grants from Spain and Mexico, flourished during the 1830s to 1880s. The hand-drawn diseño maps underscore their vital connection to land ownership. The more formal surveyed maps that followed US acquisition of California show changing values regarding land ownership. As Californios lost land and power in the late 19th century, they tried to adapt to these changes by using social networks to maintain their identities as elites. The formal portraits were one way to bolster this image. Photographs of the Ramona Pageant from the 1950s testify to the mythologizing of California's Mexican and Spanish pastoral heritage less than 100 years later.

This author-designed Financial Accounting 9e course provides a comprehensive teaching and student learning path for each of the 13 chapter-level modules. Each module includes chapter overview videos with Paul Kimmel, the eBook reading content, interactive tutorials, discussion questions, practice activities, pre-lecture assignments, homework assignments, and adaptive practice assignments. An additional module on Data Analytics in Accounting is also included.

The 20th century ushered in a change from handcrafting to machine tooling. Henry Ford introduced one of the first moving assembly lines as a way to turn out more cars more quickly, and the emerging auto industry popularized this mode. A photo of the Doble Steam Motors Corporation factory shows a line of workers and car chassis in production. This new technology, and the spread of industrialization, changed forever the way that work was completed. A wide variety of industries all across the country converted to mechanization, and California was no exception. One 1929 image shows young women working in a towel factory in Orange. Photographs taken in San Francisco illustrate that workers used machines to make products as different as Ghirardelli Chocolate and music rolls for automated player pianos. Images also show women working on an assembly line in a soap factory, and men sewing clothes in a shop (at a time when a good suit, cut on machines instead of by hand, retailed for $40 to $50). Automation and mechanization also changed agricultural practices. The combined traction steam harvester built by Stockton J. Barry on his California ranch was one of the machines that changed the way produce was harvested. Mechanized canning changed the way fruit and vegetables were processed and preserved, and made out-of-season produce available year round. Photographs in this group show cannery workers at tables, and cans going through a labeling machine. The introduction of mechanized food processing eventually brought a new awareness of the importance of standards for foods production. The Pure Food and Drug Act and the Meat Inspection Act were both passed in 1906. As workers nationwide adjusted to an increasingly mechanized workplace, good working conditions took on new importance. Workers in several industries formed unions (such as the Berryessa Fruit Growers formed in 1920, shown here) to promote safer working conditions and limit maximum working hours.

Starting with the Gold Rush, Chinese migrated to California and other regions of the United States in search of work. As several photographs show, many Chinese found work in the gold mines and on the railroads. They accepted $32.50 a month to work on the Union Pacific in Wyoming in 1870 for the same job that paid white workers $52 a month. This led to deep resentment by the whites, who felt the Chinese were competing unfairly for jobs. White labor unions blamed the Chinese for lower wages and lack of jobs, and anti-Chinese feelings grew. The cartoon "You Know How It Is Yourself" expresses this sentiment. Several political cartoons in this topic are graphic representations of racism and conflicts between whites and Chinese. "Won't They Remain Here in Spite of the New Constitution?" shows a demonized figure of political corruption protecting Chinese cheap labor, dirty politicians, capital, and financiers. "The Tables Turned" shows Denis Kearney (head of the Workingman's Party of California, a union that had criticized Chinese laborers) in jail, being taunted by Chinese men. In 1880, President Rutherford B. Hayes signed the Chinese Exclusion Treaty, which placed strict limitations on the number of Chinese allowed to enter the United States and the number allowed to become naturalized citizens. In 1882, Congress passed the Chinese Exclusion Act, which prohibited immigration from China (The Act was not repealed until 1943). The two-part cartoon from the July-December 1882 issue of The Wasp reflects how some citizens saw the situation. After the Act was passed, anti-Chinese violence increased. One illustration depicts the Rock Springs Massacre of 1885, a Wyoming race riot in which 28 Chinese were killed by British and Swedish miners. The "Certificate of Residence" document illustrates that Chinese individuals were required to prove their residence in the United States prior to the passage of the Exclusion Act. The poster offering a reward for Wong Yuk, a Chinese man, makes it clear that the United States was actively deporting Chinese. Despite discrimination and prejudice, this first wave of immigrants established thriving communities. Photographs taken in San Francisco's Chinatown show prosperous businesses, such as the "Chinese Butcher and Grocery Shop." Wealthy merchants formed active business associations, represented by the image "Officers of the Chinese Six Companies." The Chinese celebrated their heritage by holding cultural festivals, as shown in the photograph from 1896. The photographs "Children of High Class," "Golden Gate Park," and "Chinese Passengers on Ferry" are evidence that some Chinese adopted Western-style clothing while others wore more traditional attire.

In 1948, President Harry Truman took an early step towards civil rights reform by issuing Executive Order 9981, which eliminated racial segregation in the military. After World War II, African Americans ? then often called Negroes or "coloreds," began to mobilize against discrimination. They demanded an end to segregation and fought for equality in education, housing, and employment opportunities. The images in this topic show that by the 1960s, their struggle ? which began in the segregated South ? had reached California. As a number of photographs in this topic show, many Californians showed their support for Civil Rights activists and victims of racial discrimination in the South by holding marches, rallies, and demonstrations urging equality for African Americans. In one image three white children in San Francisco hold a sign in support of the four young black girls killed in the 1963 bombing of the 16th Street Baptist Church in Birmingham, Alabama. Photographs also show people in San Francisco boycotting Kress and Woolworth's department stores, sites of racial discrimination in the South. Documents shown here include a flyer urging the boycott of the stores; and a Western Union telegram sent in 1963, stating that Civil Rights activists Roy Wilkins and Medgar Evers were arrested attempting to picket Woolworth's in Jackson, Mississippi. Two photographs of memorials for slain civil rights leaders ? a march in honor Medgar Evers in 1963, in Los Angeles, and a memorial in the San Francisco Bay Area for Martin Luther King, Jr., in 1968 ? show racially mixed crowds in attendance. But not all Californians sympathized with the Civil Rights movement. Images of racial hatred and prejudice are reflected in the photograph of an African American woman holding a rock that had been thrown through an office window, and Klu Klux Klan graffiti spray-painted on a home. Various groups formed to fight in the struggle for equal rights. The National Association for the Advancement of Colored People (NAACP), formed in 1909, entered a new phase during this period, leading in the organized struggle for civil rights. An example of how the NAACP communicated about events is reflected in a letter from the Alameda County branch of the NAACP on June 13, 1950, which reported segregation on the Southern Pacific Railroad trains leaving Los Angeles. A flyer promoting the boycott of California grapes exemplifies NAACP support for other rights movements, in this case the United Farm Workers. Other flyers urged Californians to fight sharecropper wages and "Keep Mississippi Out of California." Groups such as the Congress of Racial Equality (CORE) and student groups also protested segregation and incidents of racial discrimination in the South. Several important African American leaders ? including Martin Luther King, Jr., Malcolm X, Thurgood Marshall, and Ralph Abernathy ? all came to California, as documented by photographs included here. Sometimes, the price of fighting for social justice was high. Two images capture events held for leaders in the social justice movement who were assassinated: the 1963 memorial march in Los Angeles for civil rights leader Medgar Evers; and a crowd attending a Martin Luther King, Jr., Memorial Rally in honor of the slain civil rights leader.

If you'd visited Tuolumne Meadows in Yosemite National Park 100 years ago, you probably would have encountered the alpine chipmunk, Tamias alpinus. Today, however, park visitors will have to hike up a nearby mountain to see one of these critters. That's because this species is sensitive to temperature and over the last hundred years of global climate change, Yosemite has warmed by about 5.5 degrees Fahrenheit. As the temperature increased, the chipmunks retreated to higher and higher elevations where it was cooler. Today, they occupy a fraction of their original range. If climate change continues, they could be squeezed right off the tops of their mountains and out of existence.

This first chapter explains what it means to be logical—to reason logically. It demonstrates the usefulness of logical reasoning as a means to making more effective decisions about your own life—decisions about what to believe and deci­sions about what to do. The chapter begins a systematic program of study of all the major topics regarding logical reasoning. Along the way, the book focuses on devel­oping the following five skills: (1) writing logically, (2) detecting inconsistency and lack of clarity in a group of sentences, (3) spotting issues and arguments, (4) detecting and avoiding fallacies (reasoning errors), and (5) generating and im­proving arguments and explanations. These skills will be taught here independent of subject matter.

Word Count: 280219

ISBN: 978-0-9997970-1-3

(Note: This resource's metadata has been created automatically by reformatting and/or combining the information that the author initially provided as part of a bulk import process.)

In 1931, a severe drought hit the Southern and Midwestern plains. As crops died and winds picked up, dust storms began. As the "Dust Bowl" photograph shows, crops literally blew away in "black blizzards" as years of poor farming practices and over-cultivation combined with the lack of rain. By 1934, 75% of the United States was severely affected by this terrible drought.The one-two punch of economic depression and bad weather put many farmers out of business. In the early 1930s, thousands of Dust Bowl refugees ? mainly from Oklahoma, Texas, Colorado, Kansas, and New Mexico ? packed up their families and migrated west, hoping to find work. Entire families migrated together (such as the men shown in "Three generations of Texans now Drought Refugees") in search of a better life. Images such as "Midcontinent ? Family Standing on the Road with Car," "Drought Refugees," and "Untitled, ca. 1935 (Worn-Down Family in Front of Tent)" offer a glimpse into their experience on the road, and show that cars provided many families both transportation and shelter on the road. About 200,000 of the migrants headed for California. The state needed to figure out how to absorb the thousands of destitute people crossing its borders daily. One of their tactics was to document the plight of the refugees. In 1935, photographer Dorothea Lange joined the Rural Rehabilitation Division of the California State Emergency Relief Administration (SERA), a section of the Federal Emergency Relief Administration. She was assigned the job of using her camera to document the growing number of homeless Dust Bowl refugees migrating to California. She worked with Paul S. Taylor, a professor at the University of California, Berkeley, who was researching conditions of rural poverty in order to make recommendations on how to improve the workers' conditions. The work by Taylor and Lange played an important role in helping to raise public awareness of the crisis. The reports they made for the government included both data and striking images that revealed the desperate conditions in which the migrants lived and confirmed the need for government intervention. Stark images such as "Home of Oklahoma Drought Refugees" resonated with the public, and portraits of drought refugees like "Ruby from Arkansas" and others shown in this topic humanized the migrants for more fortunate citizens. In March 1936, Lange took what became one of her most famous images, "Migrant Mother." This image of a 32-year-old woman became an icon for the suffering of ordinary people during Great Depression.

Swarms of tiny robots have given up their selfish ways and started sharing resources for the greater good. Though this might sound like the plot of a bad summer blockbuster, it is real news. This month, a team of Swiss researchers announced that they've used robots to simulate biological evolution. The simple, mobile robots - each a little larger than a sugar cube - began their lives directionless, meandering aimlessly into walls. But after a few generations of natural selection, their computer programs evolved so that they became efficient foragers, purposefully collecting disks that represent food. None of that is particularly surprising. Scientists have long been able to simulate evolution through computer programs that mimic the processes of genetic inheritance, mutation, recombination, and reproduction. What is noteworthy is that many of these robots eventually evolved to help one another, sacrificing personal success to aid other robots in their group.

Back in the Jurassic, dinosaurs may have dominated terrestrial ecosystems, but they were not alone. Scurrying around their feet and clinging to the trees above them were the fuzzy ancestors of their successors. When most of the dinosaurs perished, the surviving mammals diversified into the dinosaurs' niches, where they remain today. Last month, scientists reported on the discovery of a fossil mammal from China that would have lived alongside the dinosaurs and that, at 160 million years old, represents one of the earliest mammals known.

Scientists discover new species all the time, but usually these new species are microbes, plants, insects, and other forms of non-vertebrate life. Few vertebrate species have thus far evaded the curious gaze of biologists intent on understanding the diversity of life on Earth - that is, unless the vertebrate in question happens to be very, very tiny. Last month, scientists announced the discovery of not one, but four miniscule lizard species. The smallest of these new chameleons, which live in the far north of the African island of Madagascar and inhabit leaf litter, reaches an adult body size of just two centimeters.

The evolutionary tree presented focuses on relationships among the ray-finned fishes (Actinopterygii). You can click on the colored logos to read about evolutionary innovations and see lists of characteristics that evolved in different lineages. Note that this tree has been pruned to focus on certain groups of interest.

This month, biologists reported that a bacterial infection has run rampant in populations of a major crop pest in the Southwest. The bacterium (called Rickettsia) is a close relative of the species that causes typhus in humans. Its host is the sweet potato whitefly, a tiny bug that can occur in large enough numbers to form visible clouds. Whiteflies suck the sap from plants and spread crop diseases, causing hundreds of millions of dollars of damage in a single season. In just a few years, the percentage of southwestern whiteflies infected with Rickettsia has skyrocketed from 1% to more than 90%. Unfortunately, this is not the boon for local farmers that it might seem.

Whizzing down the interstate, the sounds that concern most of us include the radio's tuning, conversation with our fellow passengers, and, of course, the ominous howl of a siren approaching from behind. But just outside the car door, the soundscape is quite different. On busy thoroughfares, traffic noise approximates a non-stop, low-pitched roar that necessitates shouting to communicate if one is unlucky enough to need to change a tire at the side of the road. Now, new research shows that it is not just humans who strain to be heard over the din of a highway ...