Entries - Entry Category: Science and Medicine

Pertussis

aka: Whooping Cough

Pertussis or “whooping cough” is an acute infectious disease caused by the bacteria Bordetella pertussis. Person-to-person transmission occurs through respiratory droplets. Following an incubation period of seven to fourteen days, pertussis progresses through the catarrhal, paroxysmal, and convalescent stages. Cold-like symptoms—including a runny nose, sneezing, a mild cough, and a low-grade fever—characterize the catarrhal stage. The paroxysmal stage begins one or two weeks later and lasts for up to eight weeks. Patients suffer from numerous rapid bursts of productive coughing followed by a long, inspiratory whoop, which is the origin of the disease’s common name. Young infants may exhibit breathing difficulties instead of whooping. Coughing spasms produce vomiting and cyanosis. Gradual recovery characterizes the convalescent stage. Neither vaccination nor recovery …

Pillstrom Tongs

Pillstrom Tongs were invented by Lawrence G. Pillstrom MD for the safe capture of snakes for scientific research. The company eventually began shipping these unique, safe herpetological tools all over the world. They are used by zoos, animal control agencies, specialty animal handlers, collectors, and others. The company expanded upon the line of original snake tongs and modified them to be used for hunting frogs, pruning trees, cooking outdoors, picking up aluminum cans, and more. In 1953, as a young student at what is now the University of Arkansas for Medical Sciences (UAMS) in Little Rock (Pulaski County), Pillstrom began some early studies and medical research of snake venom and its effects. As a key part of his doctoral work, …

Pirate Perch

The pirate perch (Aphredoderus sayanus) belongs to the order Aphredoderiformes (or by some sources, Percopsiformes) and family Aphredoderidae. There are two subspecies, A. s. sayanus and A. s. gibbosus. It is the only living member of the family and ranges from the Atlantic and Gulf slopes from Michigan, Wisconsin, Minnesota, and New York south to the Gulf of Mexico and west to the Brazos River drainage, Texas. In Arkansas, A. sayanus occurs throughout the Coastal Plain physiographic region extending westward into the central areas of the state. It is quite rare in the Ozark uplands, and there are no records from the northwestern part of the state. The Aphredoderidae contains one fossil genus, Trichophanes, with possibly two of three valid …

Pittman, Margaret

Margaret Pittman was known worldwide for her pioneering research into the microbiology and immunology of infectious diseases. Her work in developing a vaccine for whooping cough remains the scientific basis (with later improvements) for protecting the children of Arkansas and the world from this potentially deadly disease. Margaret Pittman was born near Prairie Grove (Washington County) on January 20, 1901, to James Pittman, a country doctor, and Virginia Alice McCormick. In 1909, the family moved to the village of Cincinnati (Washington County), where Margaret and her sister sometimes helped with administering anesthesia and vaccinating patients in their father’s practice. After his early death, Virginia Pittman took her children—Margaret, Mary Helen, and James—to Conway (Faulkner County), where she did dressmaking and …

Planarians

aka: Triclads

There are at least seven species of planarians found in Arkansas, on land and in water. Planarians belong to the superphylum Lophotrochozoa, phylum Platyhelminthes, subphylum Catenulidea, class Rhabditophora (some consider the artificial grouping Turbellaria), order Tricladida, suborder Paludicola, and families Dugesiidae, Kenkiidae, Planariidae, and Dendrocoelidae. These flatworms are often simply referred to as triclads or triclad worms. Currently, the order Tricladida is split into three suborders, including the marine forms (Maricola); those found mostly in freshwater habitats of caves, although at least one species occurs in surface waters (Cavernicola); and land planarians/freshwater triclads (Continenticola). Scientists have argued about the systematics of platyhelminths for many years, and with the advent of molecular approaches (18S and 28S ribosomal DNA sequences), older classification …

Planned Parenthood

Through education, advocacy, and direct services, Planned Parenthood seeks to ensure healthy sexuality, family health, and access to high-quality sexual and reproductive healthcare. The topic of reproductive education and healthcare has long been a source for debate both nationally and in Arkansas. At the height of the Depression, Little Rock (Pulaski County) activist Hilda Cornish was convinced that the ability to limit family size could be crucial to a family’s financial survival. In February 1931, Cornish established the Little Rock Birth Control Clinic, the first such service in Arkansas. Services were provided at a minimal fee for any married woman whose family made less than $75 per month. Establishment of this clinic was met with public resistance; one woman wrote, …

Poisonous Mushrooms

Not all mushrooms are appropriate for human consumption, although there is no broad group of poisonous fungi, as many different families contain toxins. Although some toxic species do not kill humans outright and might only cause gastrointestinal (GI) distress such as nausea and vomiting, others can be debilitating and even fatal. They include species that affect the central nervous system (CNS) and induce mild hallucinations, while a small number of taxa contain various toxins that are fatal to humans. There are many types of mushrooms in Arkansas, and the Arkansas Mycological Society (AMS) helps educate its members in the morphological similarities and differences between the harmless and the poisonous. The number of poisonous (fatal) mushrooms is relatively small, perhaps just …

Polio

The poliovirus terrorized the United States for many years, and Arkansas was no exception. Infection with the virus either went unnoticed or caused poliomyelitis, commonly called polio, which resulted in paralysis that sometimes ended in death but more often left its victims permanently handicapped. As the disease often affected children, it was also called infantile paralysis. While the large urban centers of the country dealt with polio epidemics early in the twentieth century, Arkansas had only a few intermittent cases. The Arkansas Gazette, however, reported frequently on the disease, keeping its readers informed of efforts to combat, cure, and curtail its devastating effects in other areas. After the first significant numbers were reported in the state, Arkansans reacted to the …

Presbyterian Village

Presbyterian Village is a residential care facility located in Little Rock (Pulaski County). At the time of its opening in 1965, it represented a new approach to healthcare for senior citizens in the area. Rather than focusing on one aspect of senior care, such as independent living or nursing home care, Presbyterian Village was designed to provide progressive care that could evolve with a resident’s changing healthcare needs. As a result, Presbyterian Village provided independent apartment living, assisted living, and nursing home care all in one facility, remaining the only healthcare facility of its type in the area until the mid-1970s. It was listed on the National Register of Historic Places on September 8, 2020. Presbyterian Village was the brainchild …

Pro-ISIL Hack of Arkansas Library Association

In 2016, a pro-ISIL group hacked the website of the Arkansas Library Association (ArLA) and released the membership directory to other ISIL supporters as a scare tactic, although the breach had few consequences for the organization. In June 2014, the terrorist organization known as the Islamic State of Iraq and the Levant (ISIL), also called Islamic State (IS) or the Islamic State of Iraq and al-Sham (ISIS), declared a global caliphate (Islamic state ruled by a religious leader). By March 2015, ISIL had established its rule over sizeable portions of Syria and Iraq and benefitted from sympathetic supporters around the world. Starting in 2015, pro-ISIL supporters began waging indiscriminate cyberattacks against various Western websites and databases. Hackers specifically targeted websites …

Proturans

aka: Coneheads

Proturans belong to the Phylum Euarthropoda, Class Entognatha, and Class Protura. The Protura constitute a taxon of hexapods that were previously thought to be insects and now are considered as a class on their own. Proturans are cosmopolitan in distribution (except for both polar regions and snow zones of mountains) with more than 800 described species belonging to three distinct orders (Acerentomata, Eosentomata, and Sinentomata) and seven families (Acerentomidae, Antelientomidae Eosentomidae, Fujientomidae, Hesperentomidae, Protentomidae, and Sinentomidae). As of 2019, seventy-six genera are known worldwide, with nearly 300 species contained within the single cosmopolitan genus, Eosentomon. There are about twenty-six species in North America, though there is no exact number of species reported, to date, from Arkansas. However, four species of …

Pseudoscorpions

aka: False Scorpions
aka: Book Scorpions

Pseudoscorpions belong to the phylum Arthropoda, class Arachnida, order Pseudoscorpionida, and two suborders (Epiocheirata and Iocheirata). There are more than 3,300 species within about 430 genera, with more described as new species regularly. They are cosmopolitan in distribution and occur in a variety of habitats from temperate to cold regions from Northern Ontario, Canada, and above the timberline in the Rocky Mountains of Wyoming in the United States to the karst system of the Jenolan Caves of New South Wales, Australia. However, pseudoscorpions are most dense with diverse populations in the tropics and subtropics, where they can be found on island territories such as the Canary Islands, where about twenty-five endemic species have been reported. There are also two endemic …

Public Health

Public health is a dynamic, interdisciplinary field with the goal of improving and maintaining the health and well-being of communities through education, the promotion of healthy behaviors and lifestyles, the creation of health-related government policy, and research on disease and injury prevention. In Arkansas, the field of public health has been active since territorial days, when infectious diseases such as malaria plagued the area. In the early days, efforts to improve sanitation, prevent the spread of disease, and treat the health problems of the public in Arkansas centered on diseases—particularly malaria, hookworm, polio, yellow fever, typhoid, and tuberculosis. In modern times, public health campaigns in Arkansas have moved toward a focus on chronic health problems such as obesity and diabetes. …

Pulaski County Medical Society

The Pulaski County Medical Society (PCMS), founded in 1866, is Arkansas’s largest and one of the state’s oldest county medical organizations for regular physicians (meaning those within the medical mainstream.) (Although sources identify the PCMS as the “first medical organization chartered by the state of Arkansas,” an earlier organization, known as the Crawford County Medical Society, was established in the early 1840s.) The PCMS supports physicians and promotes public health. In nineteenth-century America, regular physicians formed professional organizations to advocate for themselves. In 1866, a group of Little Rock (Pulaski County) physicians, including Philo Oliver Hooper and Roscoe G. Jennings, formed the Little Rock and Pulaski County Medical Society. The PCMS, whose members were required to be American Medical Association …

Purdue, Albert Homer

Albert Homer Purdue was the ex officio state geologist from 1907 to 1912. He published many works on the geology of both Arkansas and Tennessee. Purdue was a renowned geologist and taught at Arkansas Industrial University, which is now the University of Arkansas (UA) in Fayetteville. Albert Purdue was born on March 29, 1861, on a farm near Yankeetown, Indiana, to Samuel Leroy and Phoebe (Priest) Purdue. Albert was the second oldest of eight children and spent his youth working on the family farm, receiving only minimal formal education. At the age of twenty, however, he entered the Indiana State Normal School (later Indiana State University) in Terre Haute. He received his diploma on June 8, 1888. Until 1896, Purdue …

Rabies

Rabies, a viral disease that attacks the body’s central nervous system, causes convulsions, hallucinations, and an inability to swallow liquid—hence its earlier name, hydrophobia, or “fear of water.” Until Frenchman Louis Pasteur’s 1885 creation of a vaccine that successfully treated rabies in humans, the bite from a rabid animal almost always resulted in a death excruciating to endure and horrifying to witness. Pasteur’s discovery was publicized in Arkansas, but it would be almost thirty years before the state had a treatment center using his methods, though it lasted only briefly. Two months after Pasteur’s breakthrough, four New Jersey children who had been bitten by a rabid dog traveled to France and were cured using the vaccine. News of these boys’ …

Ranavirus

Ranaviruses are viral pathogens (double-stranded DNA viruses) that infect a broad diversity of at least 175 ectothermic (cold-blooded) vertebrates across the globe; they belong in the genus Ranavirus (RV) of the family Iridoviridae. The genus is composed of six recognized viral species, three of which—tiger salamander (Ambystoma tigrinum) virus (ATV), Bohle iridovirus (BIV), and the type species, frog virus 3 (FV3)—are known to infect amphibians. There are four additional genera of viruses within this family, but RV is the only one that includes viruses that are infectious not only to amphibians but also reptiles and wild and cultured teleost fishes. A study in 2016 found no occurrence of ranavirus in Arkansas in turtles of the eastern part of the state …

Razorback Hogs

Arkansas was known for its razorback hogs long before the University of Arkansas mascot came into being. These wild boars were called razorbacks because of their high, hair-covered backbone and ill-mannered temper. The razorback hog was considered ruthless and dangerous when backed into a corner. The true wild boar, also called the European or Russian boar, is not native to the United States. Christopher Columbus introduced their domesticated ancestors to the New World in 1493. Wild boars are thought to have arrived with explorer Hernando de Soto, who brought the original thirteen grunting hogs to the new world in 1539, though this theory has lately been cast into doubt by Charles Hudson, who reconstructs de Soto’s path in his book, …

Red-cockaded Woodpeckers

aka: Picoides borealis

With the exception of the recently rediscovered ivory-billed woodpecker, red-cockaded woodpeckers (Picoides borealis) are the rarest of Arkansas’s nesting woodpeckers. A century ago, the bird was common in mature, open pine stands. Its natural range included millions of acres of pine habitat throughout the southeast United States. An estimated ninety-nine percent of suitable habitat was lost because of logging, wildfire suppression, conversion to agricultural lands, and urbanization. Best estimates range-wide indicate an original population numbering over four million. By the time the bird was declared endangered, it had declined to an estimated 10,000. The Arkansas population dwindled to under 400 birds. The red-cockaded woodpecker was designated as endangered on October 13, 1970. It received formal legal protection with the passage …

Reed, Eddie

Eddie Reed was a cancer researcher, medical oncologist, and leader in public policy addressing disparities in healthcare in the United States. Reed is a member of the Arkansas Black Hall of Fame. Eddie Reed was born on December 17, 1953, the son of Floyd and Gennora Reed, who raised a family of eighteen children on a farm near Hughes (St. Francis County). Reed and his siblings received their early education in Hughes’s public schools, and all received a college education and had distinguished careers as lawyers, doctors, teachers, and public servants. Reed attended Philander Smith College, a historically black institution in Little Rock (Pulaski County), where he achieved academic distinction. In the summer following his sophomore year, he was chosen …

Reid, Thomas Jefferson

Thomas Jefferson Reid was a physician and a colonel in the Confederate army during the Civil War. Reid not only fought during the war—and at one point escaped from a prisoner-of-war camp—he also served at times in a medical role. After the war, he practiced medicine in Arkansas. He moved to Illinois around 1880, where he lived the rest of his life. Thomas Jefferson Reid was born on January 6, 1838, in Caswell County, North Carolina. He was one of twelve children born to Thomas Jefferson Reid and Frances Lightfoot Edwards “Fannie” Reid. Thomas Sr. was a descendant of Major John Reid of Virginia, who had served in the American Revolution. Reid’s mother was well educated and from a slaveholding …

Remmel Dam

aka: Lake Catherine

Remmel Dam is situated on the Ouachita River at Jones Mills (Hot Spring County). It was constructed in 1924 by Arkansas Power and Light (AP&L), now Entergy, in response to the growing demand for electrical power in southern Arkansas and surrounding states. The dam impounds Lake Catherine and, together with Carpenter Dam in Hot Springs (Garland County), provides hydroelectric power for southern Arkansas. Part of a three-dam project on the Ouachita River along with Carpenter Dam (completed in 1931) and Blakely Mountain Dam (completed in 1953), it played an important role in the early development of AP&L. In 1916, former riverboat captain Flave Carpenter met with Harvey Couch, who founded AP&L in 1913, to discuss the possibility of building dams on …

Reptiles

Arkansas’s reptilian biodiversity includes four groups—turtles, lizards, snakes, and the American alligator—each with a sharply different body morphology. By closely examining the morphology of these varied groups within the class Reptilia, today’s phylogenetic taxonomists (individuals who study the evolutionary relationships among species) have found that members of this class share several recently derived features (such as skull characteristics) with birds. Because of this modern understanding of the evolutionary relationships among reptilian ancestors and their descendents, which include dinosaurs and birds, some taxonomists have proposed a new class (Eureptilia) to include dinosaurs, birds, crocodylians, all of their close diapsid relatives (including lizards and snakes), and a number of extinct groups. However, the classical taxonomic designation for the class Reptilia includes turtles, …

Riddle’s Elephant and Wildlife Sanctuary

Opened in 1990 by Scott and Heidi Riddle, Riddle’s Elephant and Wildlife Sanctuary was located on 330 acres outside of Greenbrier (Faulkner County). The sanctuary provided a permanent home for African and Asian elephants in need of sanctuary for any reason, regardless of age, sex, species, health, or temperament. Elephants came from private owners, circuses, or zoos. The 501(c)(3) nonprofit sanctuary—which raised money through grants and donations—housed up to a dozen elephants at any given time, with several baby elephants born at the facility. Maximus, an African elephant born at the sanctuary in 2003, starred in Animal Planet’s television show Growing Up Elephant. Scott and Heidi Riddle met while both were working at the Los Angeles Zoo, and they married …

Rivervale Inverted Siphons

Completed in 1926, the Rivervale Inverted Siphons were a prerequisite to permanent settlement in eastern Poinsett County and adjacent areas in the St. Francis River and Little River basins. The siphons provided relief from overflow and outlet for runoff from Craighead and Mississippi counties and portions of southeastern Missouri. One of the first components in the comprehensive drainage plan devised for Drainage District Number Seven of Poinsett County, the Rivervale Inverted Siphons also permitted the immediate agricultural development and economic exploitation of parts of Poinsett County and those counties in Missouri and Arkansas tributary to District Seven. They were also a necessary response to the proliferation of organized drainage and levee districts in the early twentieth century. The siphons were …

Robinson, John Marshall

John Marshall Robinson was a prominent physician, civic leader, and co-founder and president of the Arkansas Negro Democratic Association (ANDA). As a physician, Robinson performed pioneering medical surgery and was involved with a number of medical institutions and organizations in Little Rock (Pulaski County). As a politician, Robinson was the main voice in the state demanding equal black participation in the Arkansas Democratic Party between 1928 and 1952. Born on July 31, 1879, in Pickens, Mississippi, John Robinson was one of eight children of Isabell Marshall and Amos G. Robinson. Robinson attended Rust College in Holly Springs, Mississippi, and graduated from Meharry Medical College in Nashville, Tennessee, in 1904. While in Nashville, Robinson met and married India Cox. Robinson’s only …

Rock Island Bridge (Little Rock–North Little Rock)

aka: Choctaw Bridge
aka: Clinton Presidential Park Bridge

The Rock Island Bridge is a lift-span bridge crossing the Arkansas River between downtown Little Rock (Pulaski County) and North Little Rock (Pulaski County). One of six bridges linking the two downtowns, the Rock Island Bridge was originally constructed as a railroad bridge in 1899; it was converted to serve as a pedestrian bridge in 2011 to complement the William J. Clinton Presidential Center and Park. In late 1898, the Choctaw and Memphis Railroad was organized with the goal of establishing a railroad into the Indian Territory (modern-day Oklahoma). Congress passed legislation authorizing construction of a new bridge across the Arkansas River in January 1899, and the Little Rock Bridge Company formed that May to develop plans for constructing the …

Rocks and Minerals

There are three basic classes of rocks: igneous, metamorphic, and sedimentary. Igneous rocks are those that solidified from magma (molten rock). Metamorphic rocks are formed from pre-existing rocks in a solid state by heat, pressure, and/or chemical activity. Sedimentary rocks are made up of particles of sediment cemented together. In Arkansas, the overwhelming majority of surface and near-surface rocks are sedimentary rocks. There are a few igneous rocks and some very low-grade metamorphic rocks, but these occupy little area. Out of Arkansas’s total area of 53,179 square miles, only about fifteen square miles are composed of igneous rocks. In the Ozark Plateau and Ouachita Mountains, there are indications of some very low-grade metamorphic effects on the rocks in restricted areas, …

Rotifers

aka: Wheel Animals

The Phylum Rotifera (“wheel animals”) contains over 2,100 nominal taxa of microscopic and near microscopic species of unsegmented, bilaterally symmetrical pseudocoelomate invertebrates. They were originally named in 1696 by Anglican priest John Harris (1666–1719) and studied in 1703 by Antoine van Leeuwenhoek (1632–1723). Several surveys of Rotiferans have been done in Arkansas, although there is no summation of the species as of 2019. Because they are minute and mostly composed of soft bodies, rotifers are not commonly supported for fossilization. Their only hard parts, their jaws, are sometimes preserved in the fossil record, but their size makes detection challenging. However, fossils of Habrotrocha angusticollis have been found in Pleistocene (2.5 million to 11,700 years ago) peat deposits of Ontario, Canada. …

Roy, Frederick Hampton, Sr.

Frederick Hampton Roy Sr. was an ophthalmologist who lived and practiced in Little Rock (Pulaski County). He wrote many books on ophthalmology, some of which have been translated into other languages. Roy also authored books on topics such as history, architecture, and religion. In addition to being a prominent member of the Arkansas medical community, he was a prolific writer, a philanthropist, an advocate for historic preservation, and a politician. F. Hampton Roy was born in Nashville, Tennessee, on June 27, 1937. He graduated from Oak Ridge High School in Oak Ridge, Tennessee, in June 1955. After graduation, he entered the University of Tennessee at Knoxville and received a BS in 1958. In 1961, he received his MD from the …

Rubella

Rubella or “German measles” is a contagious disease caused by a virus of the genus rubivirus, which is identified as a member of either the family matonviridae or togaviridae. Present only in humans, the rubella virus is unrelated to the measles virus. The disease acquired the name German measles because it was first described by German physicians in the mid-eighteenth century. Typically a mild illness of childhood, rubella spreads from person to person through respiratory droplets, appearing following an incubation period of twelve to twenty-three days. Symptoms include a low-grade fever, enlarged lymph nodes, and a diffuse, fine, light-red rash. Recovery usually confers immunity. Rubella is most dangerous during pregnancy. Prenatal maternal rubella infection, particularly if it occurs during the …

Rust, John Daniel

John Daniel Rust invented the first practical spindle cotton picker in the late 1930s. The Rust cotton picker threatened to wipe out the old plantation system and throw millions of people out of work, creating a social revolution. Eli Whitney’s cotton gin had created the “Cotton South,” but the Rust picker threatened to destroy it. In 1949, Rust moved to Pine Bluff (Jefferson County), where the Ben Pearson Company produced cotton pickers using the Rust patents. John D. Rust was born on September 6, 1892, near Necessity, Texas, to Benjamin Daniel Rust, a farmer and schoolteacher, and Susan Minerva Burnett, a homemaker. As a youngster, Rust did farm work and displayed an aptitude for mechanical tinkering. His parents died when …

Saline Memorial Hospital

Originally known as the Saline County Memorial Hospital, present-day Saline Memorial Hospital was constructed in 1954 in Benton (Saline County). The hospital was created in response to the rising population of the Benton area following World War II, the Korean War, and Saline County’s postwar industrial boom. The hospital had forty-two beds at its creation and cost about $325,000 to build. In 2017, Saline Memorial Hospital encompassed approximately 400,000 square feet, with 177 beds and more than 180 active and consulting physicians. According to census data, the population of Benton was 3,502 in 1940 and had nearly doubled by 1950 to 6,277. In February 1955, Saline County judge Charles O. Smithers named the first governing board for the hospital. Dr. …

Salmonids

aka: Trout
aka: Salmon

Salmonids include chars, graylings, salmon, trout, and freshwater whitefishes, all of which belong to the superorder Protacanthopterygii, order Salmoniformes, family Salmonidae, three lineages or subfamilies (Coregoninae, Thymallinae, and Salmoninae), eleven extant genera, and about 120 species. There are thirty-nine species known in North America. The family is widely distributed, with various species found north of the equator in Asia, Europe, and North America. Some important North American genera include Coregonus, Oncorhynchus, Prosopium, Salmo, Salvelinus, and Thymallus. Although no members are native to Arkansas, salmonids have been introduced, primarily for purposes of sports fishing. The family initially appears in the fossil record in the middle Eocene (48 to 38 million years ago) from fossils found in central British Columbia, Canada. A …

Sanitation

The term “sanitation” is used today to describe the elimination or control of dangerous bacteria, especially in drinking water and food supplies and through personal hygiene. Prior to the development of the germ theory and the subsequent discoveries in bacteriology and microbiology, the term covered all elements of health and well-being. Sanitation, in the sense of the elimination of dangerous bacteria, is common to animals, which instinctively try to keep their feces and urine at a distance from their habitations. When humans abandoned nomadic patterns and resided in settled communities, more complicated arrangements had to be worked out. Examples practiced in the absence of scientific proof included the use of latrines, attempts to protect the purity of water supplies, and …

Schilberg, Richard

Richard Schilberg was an aviation pioneer whose early efforts in Stuttgart (Arkansas County) made him Arkansas’s first acknowledged aircraft manufacturer. Richard Schilberg was born on September 28, 1887, at Canada, Kansas, the son of Gottlieb Schilberg and Juliana Heidt Schilberg. He moved to Stuttgart in 1909 and opened a welding shop, initially specializing in agricultural machinery. He married Gladys Fricker on January 28, 1913. They divorced in 1926 and he married Mable Stilzen in 1927. The couple took their first airplane rides in June 1913, when one of Arkansas’s first aerial exhibitions came to the town. Increasingly interested in flying, he began building aircraft in Stuttgart by 1914, becoming the first major promoter of aviation in the Grand Prairie region. …

Schoppach, Annie

aka: Annie Adelia Anette Ryerse

Annie Schoppach was the first female graduate of the Medical Department of the University of Arkansas (now the College of Medicine of the University of Arkansas for Medical Sciences). She practiced medicine in Little Rock (Pulaski County), entering a profession that was almost entirely male dominated. Annie Adelia Anette Ryerse was born in Port Ryerse, Ontario, Canada, on May 3, 1859, the daughter of James and Sarah Ryerse. The Ryerse family was the most prominent family in the area, her great-grandfather having been the lieutenant governor of the Western District of Upper Canada. She experienced a great deal of loss early in her life. Her mother died when she was a small child. Later, her twin sister died. Her paternal …

Science and Technology

Arkansas has had a rather conflicted relationship with science and technology throughout its history. On the one hand, the state existed for a long time on the American frontier, separated from the intellectual and academic centers of the rest of the nation; hence, its residents have been popularly perceived throughout history as possessing an anti-intellectual strain, an image on occasion reified during, for example, controversies regarding the place of evolutionary theory in public education. On the other hand, political leaders, and the people themselves, fairly readily support scientific research that promises to have an immediate economic benefit for the state of Arkansas. Given Arkansas’s place as a largely agricultural state, it is no surprise that much of this research has been …

Scorpionflies

aka: Mecopterans

Scorpionflies belong to the Phylum Arthropoda, Class Insecta, Superorder Endopterygota, and Order Mecoptera. There are about 605 species within thirty-four genera and nine families worldwide. There are also 400 known fossil species in about eighty-seven genera, which are more diverse than even the extant members of the order. Sixteen species representing three families of scorpionflies occur in Arkansas. Most mecopterans live in moist environments, although adults of a few species are found in hotter semi-desert habitats and may be active and noticeable only for short intervals of the year. Those in the family Panorpidae generally inhabit broad-leaf woodlands with abundant damp leaf litter. Snow scorpionflies (family Boreidae) appear in winter and are often seen on snowfields and on moss; the …

Sculpins

aka: Cottids

Sculpins belong to the order Scorpaeniformes and superfamily Cottoidea. There are about 11 families, 149 genera, and 756 species. They reach their maximum diversity in the northern Pacific Ocean. The family Cottidae is the largest family, with approximately 258 species; the second-largest family is the Agonidae (marine poachers), with 47 species. The most speciose genus, Cottus (freshwater sculpins), is confined to North America and Eurasia. It includes about 68 taxa that are native to the Northern Hemisphere (Palearctic and Nearctic realms). There is fossil material similar to Cottus that dates to at least the Miocene Epoch (23 to 5.3 million years ago). Most sculpins are generally less than 15 centimeters (6 inches) in length, although a few species can reach …

Senior Centers

By 2023, Arkansas was home to eight regional senior centers that provided educational, nutritional, and recreational services for people over age sixty. Senior centers are generally available at no cost to anyone older than sixty, although some may require a donation or have different age restrictions. Depending on the location of the center, seniors can socialize, participate in wellness activities, and receive a hot lunch. They may also take part in various programs including art courses, bingo, card games, computer instruction, dancing, exercise programs, pool, quilting, strength training, wellness classes, working on puzzles, and yoga. Centers may also provide home-delivered meals for housebound elderly clients, transportation for seniors who are unable to drive, and referrals to other senior-based services if …

Sex Education

The United States does not federally mandate sex education in public schools. Instead, the government leaves decisions about if and how to teach sex education up to the individual states, and many states leave the decision up to individual school districts. As a result, by 2022, sex education was only state mandated in twenty-nine states and the District of Columbia. Of these, twenty-eight mandated that the education cover sex and HIV. Twenty-two of the twenty-nine states required that discussion of sex and/or HIV education be medically accurate. However, the definition of “medically accurate” was not the same in all twenty-two states. For various reasons—but especially because of strict federal government funding requirements—America continues to use an abstinence-only or “abstinence-plus” approach …

Shannon, Robert Fudge

A pioneer in mental healthcare for Arkansas, Robert Fudge Shannon was the first chief resident in psychiatry at the University of Arkansas Medical School, now the University of Arkansas for Medical Sciences (UAMS). He also established the state’s first psychiatric outpatient program for adolescents, helped launch Arkansas’s first private psychiatric inpatient treatment unit, founded the first private psychiatric clinic in the state, and served as commissioner of mental health. Born on April 15, 1933, in Melbourne (Izard County), the second of three children of newspaperman Karr Shannon and Ollie Ellen (Fudge) Shannon, Bob Shannon attended school in Melbourne until 1944, when the family moved to Little Rock (Pulaski County). He graduated from Little Rock High School (now Little Rock Central …

Sherman, Jerome Kalman

Jerome (Jerry) Kalman Sherman, considered the “Father of Sperm Banking,” was a professor at the University of Arkansas for Medical Sciences (UAMS) from 1958 until 1992, when he became professor emeritus, remaining active until 1994. During his decades as a research scientist and teacher of anatomy, he significantly shaped the field of cryobiology—the study of biological materials at low temperatures—and the emergence of human sperm banks as part of reproductive medicine. Through his involvement in multiple charitable organizations in the Little Rock (Pulaski County) area, he has also improved the lives of many Arkansans. Jerry Sherman was born in Brooklyn, New York, on August 14, 1925, the only child of Murray and Beatrice Sherman. An eager student, he graduated from …

Shrews

Shrews are very small, secretive, mouse-like mammals that inhabit moist, shady woodland areas. Generally, they have long, flexible, pointed snouts and very small eyes and ears. Their fur is soft and dense, and most species have prominent scent glands. All shrews belong to the Family Soricidae (subfamilies Soricinae, Crocidurinae, Myosoricinae) and Order Eulipotyphia, which also includes moles, shrew-like moles, desmans, gymnures, hedgehogs, and solenodons. True shrews, talpids, and solenodons were formerly grouped in the clade Soricomorpha; however, Soricomorpha has been found to be paraphyletic (descended from a common evolutionary ancestor or ancestral group, but not including all descendant groups). Members of this order are nearly cosmopolitan in distribution, with the exception of Australia, New Zealand, Antarctica, extreme southern South America, …

Shrimps

aka: Prawns

Arkansas shrimps belong in the cosmopolitan Family Palaemonidae (subfamily Palaemoninae) and Order Decapoda, which also contains the crayfishes. Taxonomically, shrimps are differentiated from crayfishes by their first pair of legs with chelae and the abdomen laterally compressed, while crayfishes have the first three pairs of legs with chelae and their abdomens dorsoventrally flattened. The Palaemonidae is a large family (950 species within 137 genera) and is distributed on all the continents except in the deep oceans, in temperate and tropical regions, and having representatives in marine, brackish, and fresh water. Representatives of this family are mainly carnivores that feed on small invertebrates. The most prominent genus in the family is Macrobrachium, with over 240 species that include commercially fished species; …

Shrubs

In 2016, a total of 436 kinds of woody plants were known to occur in the wild in Arkansas, comprising 419 species plus another seventeen varieties and subspecies. Of these, 185 can be considered trees, 189 are best described as shrubs, and sixty-two are woody vines. In some cases it is difficult to draw a hard line between these categories, and various references differ in their criteria for each. For the purposes of this entry, however, each category is defined as follows: Trees are defined as perennial, often single- or relatively few–stemmed woody plants typically greater than five meters (sixteen feet) in height at maturity. Shrubs are defined as perennial, often multi-stemmed woody or semi-woody plants usually less than five …

Silitch, Mary Frances

Mary Frances Files Silitch is the first woman to be editor-in-chief of a national aviation magazine. A licensed pilot, she has flown 250 kinds of aircraft and logged 5,000 hours of flight. Mary Frances Files was born on November 9, 1935, in Little Rock (Pulaski County) to William Thomas Files and Johnnie Caldwell Files of Parkdale (Ashley County); she has two sisters. Her first flight was in an open-cockpit crop-duster airplane over the family farm at the age of four. She attended schools in Parkdale and Wilmot (Ashley County) but graduated from All Saints Episcopal School in Vicksburg, Mississippi. She attended Southwestern at Memphis (now Rhodes College), where she began her journalism career as the managing editor of the Sou’wester, …

Silverfish

aka: Bristletails

Silverfish are small, wingless insects in the order Zygentoma (formerly Thysanura). There are four families: Lepidotrichidae (single species), Lepismatidae (about 200 species), Maindroniidae (three species), and Nicoletiidae (about twenty species). In the late twentieth century, it was recognized that the two suborders were not sister taxa; therefore Thysanura was paraphyletic, and the two suborders were each elevated to the status of an independent monophyletic order, with Archaeognatha the sister taxon to the Dicondylia, including the Zygentoma (fishmoths, firebrats, and silverfish). A nicoletiid, Speleonycta ozarkensis, occurs in eight different cave systems in Arkansas in Benton and Newton counties and in Oklahoma in Adair, Cherokee, and Delaware counties. In concert with jumping bristletails (Order Microcoryphia), the predecessors of silverfish are considered the …

Slime Molds

Slime molds are among the more interesting yet relatively little known organisms found in Arkansas. They do not have a particularly attractive name, but some examples produce fruiting bodies that are miniature objects of considerable beauty. The organisms commonly referred to as slime molds actually belong to two different taxonomic groups—the myxomycetes and the dictyostelids. Members of both groups are common-to-abundant organisms in forests throughout Arkansas, but only the myxomycetes (also called plasmodial slime molds) can be observed directly in nature. As a result, the myxomycetes are by far the better known group, and to most people (including many biologists), they are the only “slime molds” of which they are aware. However, the dictyostelids (also known as cellular slime molds) …