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Julius von Sachs (1832-1897)
Julius von Sachs helped establish plant physiology through his experiments in latter nineteenth-century Germany. Sachs infused the inchoate discipline of plant physiology with experimental techniques and a mechanistic stance, both of which cemented his place as one of the discipline s founders. Sachs trained a generation of plant physiologists, and his stress on experimentation and mechanism influenced biologists in other disciplines, especially embryologist Jacques Loeb.
Format: Articles
Subject: People
Gunther von Hagens (1945- )
Gunther von Hagens invented a plastination technique and created Body Worlds, a traveling exhibit that has made anatomy part of the public domain. Von Hagens invented the plastination technique in 1977 while working at Heidelberg University in Heidelberg, Germany. Von Hagen's plastination technique preserves real bodies and tissues by the removal of the fluid and replacement with resin. Body Worlds features three-dimensional, plastinated human bodies.
Format: Articles
Subject: People, Outreach, Reproduction
Howard Wilber Jones Jr.
Howard Wilber Jones Jr. and his wife, Georgeanna Seegar Jones, developed a method of in vitro fertilization and helped create the first baby in the US using that method. Though the first in vitro baby was born in England in 1978, Jones and his wife's contribution allowed for the birth of Elizabeth Carr on 28 December 1981. Jones, a gynecologist and an obstetrician, researched human reproduction for most of his life.
Format: Articles
Subject: People, Reproduction
"On the Permanent Life of Tissues outside of the Organism" (1912), by Alexis Carrel
'On the Permanent Life of Tissues outside of the Organism' reports Alexis Carrel's 1912 experiments on the maintenance of tissue in culture media. At the time, Carrel was a French surgeon and biologist working at the Rockefeller Institute in New York City. In his paper, Carrel reported that he had successfully maintained tissue cultures, which derived from connective tissues of developing chicks and other tissue sources, by serially culturing them.
Format: Articles
Subject: Experiments
"Autistic Disturbances of Affective Contact" (1943), by Leo Kanner
Leo Kanner published Autistic Disturbances of Affective Contact in 1943 in the journal Nervous Child. This article described the cases of eleven children with autism. Kanner described the behavior and upbringing of each child, aged two to eight, as well as the educational backgrounds of the children's.
Format: Articles
Subject: Publications
"Cellular death in morphogenesis of the avian wing" (1962), by John W. Saunders Jr., et al.
In the early 1960s, John W. Saunders Jr., Mary T. Gasseling, and Lilyan C. Saunders in the US investigated how cells die in the developing limbs of chick embryos. They studied when and where in developing limbs many cells die, and they studied the functions of cell death in wing development. At a time when only a few developmental biologists studied cell death, or apoptosis, Saunders and his colleagues showed that researchers could use embryological experiments to uncover the causal mechanisms of apotosis.
Format: Articles
Subject: Experiments
NovaSure Endometrial Ablation
NovaSure is a device for endometrial ablation, which is a procedure that removes the endometrium, that the US Food and Drug Administration, or FDA, approved for use on 28 September 2001. Endometrium is the tissue that lines the uterus. NovaSure destroys the endometrium by sending electric beams at the endometrium. Hologic, a medical technology company concerned with women’s health, developed NovaSure to treat menorrhagia, or heavy bleeding during menstruation. Menorrhagia is a common symptom of endometriosis. Endometriosis is the growth of the endometrium outside of the uterus.
Format: Articles
Subject: Technologies
Dandy-Walker Syndrome
Dandy-Walker Syndrome is a congenital brain defect in humans characterized by malformations to the cerebellum, the part of the brain that controls movement, and to the ventricles, the fluid-filled cavities that surround the cerebellum. The syndrome is named for physicians Walter Dandy and Arthur Walker who described associated signs and symptoms of the syndrome in the 1900s. The malformations often develop during embryonic stages.
Format: Articles
Subject: Disorders
Franz Max Albert Kramer (1878–1967)
Scientist Franz Max Albert Kramer worked as a psychiatrist in Poland and the Netherlands in the early twentieth century and is known for his contributions to research on psychological conditions that experts call hyperkinetic syndromes. Children with hyperkinetic syndromes display inattention, overactivity, and impulsivity. Along with scientist Hans Pollnow, Kramer defined a specific kind of hyperkinetic syndrome based on an initial case study of seventeen children, initially known as Kramer-Pollnow Syndrome.
Format: Articles
Subject: People
Biological Sex and Gender in the United States
In the United States, most people are assigned both a biological sex and gender at birth based on their chromosomes and reproductive organs. However, there is an important distinction between biological sex and gender. Biological sex, such as male, female, or intersex, commonly refers to physical characteristics. Gender refers to the socially constructed roles, behaviors, and actions people take on, usually in relation to expectations of masculinity or femininity. As of 2022, there is disagreement over the relation between sex and gender.
Format: Articles
Subject: Organizations, People, Processes, Ethics
“Spiritual Midwifery” (2003), by Ina May Gaskin
In 1976, midwife Ina May Gaskin published Spiritual Midwifery, with other editions published in 1980, 1990, and 2003. Spiritual Midwifery is a book about pregnancy, birth, and postpartum, or the time period after birth. During the 1970s, it was common for women to receive an epidural, a medication that reduces pain during labor, and for physicians to monitor a fetus’s heartbeat while separating women from their infants after birth. However, according to Gaskin, some women wanted to give birth outside of the hospital without medical interventions.
Subject: Publications, Reproduction
“Pelvic Organ Prolapse” (2007), by John E. Jelovsek, Christopher Maher, and Matthew D. Barber
In 2007, physicians John Jelovsek, Christopher Maher, and Matthew Barber published, “Pelvic Organ Prolapse,” in The Lancet. In their article, Jelovsek and colleagues provided an overview of pelvic organ prolapse in women and described the epidemiology, risk factors, symptoms, and management of the condition. Pelvic organ prolapse occurs when a woman’s pelvic floor is weakened or damaged from stress or trauma such as vaginal childbirth.
Format: Articles
Subject: Publications, Disorders
Days for Girls (2008– )
In 2008, Celeste Mergens founded the organization Days for Girls to address obstacles impeding women’s and girls’ access to sustainable hygiene and health education by enlisting volunteers around the world to construct reusable menstrual hygiene products for girls in low-income countries. Mergens founded Days for Girls in the US in 2008 after learning that an orphanage she was working with in Kenya did not have resources for girls to manage their menstrual cycles.
Format: Articles
Subject: Organizations
“What Can We Do About Cancer? The Most Vital and Insistent Question in the Medical World” (1913), by Samuel Hopkins Adams
In 1913, journalist Samuel Hopkins Adams published “What Can We Do About Cancer? The Most Vital and Insistent Question in the Medical World,” hereafter “What Can We Do About Cancer,” in Ladies’ Home Journal. Cancer is a disease that is the result of abnormal cell division in different parts of the body, such as the breasts or the cervix. During that time, many women did not discuss or disclose early symptoms of reproductive cancers, such as breast lumps and abnormal vaginal discharge, out of shame or disgust. Thus, people often considered cancer to be a taboo topic.
Subject: Publications
Luc Antoine Montagnier (1932-2022)
Luc Montagnier studied viruses, the immune system, and cancer in France during the second half of the twentieth century. In his early career, Montagnier studied how cancer-causing viruses replicate and infect host cells. He received the Nobel Prize in Physiology or Medicine in 2008 for his team’s discovery that a retrovirus, human immunodeficiency virus, or HIV, was the cause of acquired immunodeficiency syndrome, or AIDS. AIDS is a chronic condition that results from HIV infection and damages the immune system.
Format: Articles
Subject: People, Processes, Experiments
Countdown to Life: The Extraordinary Making of You (2015), by the British Broadcasting Corporation and The Open University
In 2015, the British Broadcasting Corporation (BBC) partnered with The Open University to produce the three-part documentary series, Countdown to Life: The Extraordinary Making of You. Michael Mosley, a British television producer and journalist, hosts the documentary. Along with narrating animated scenes of a growing fetus in the womb, Mosley meets with individuals around the world who experienced mutations that can arise in the womb. Introduced over the course of the three episodes, several people share their personal stories of how their bodies did not develop correctly prior to birth.
Format: Articles
Subject: Publications
Hermann Joseph Muller's Study of X-rays as a Mutagen, (1926-1927)
Hermann Joseph Muller conducted three experiments in 1926 and 1927 that demonstrated that exposure to x-rays, a form of high-energy radiation, can cause genetic mutations, changes to an organism's genome, particularly in egg and sperm cells. In his experiments, Muller exposed fruit flies (Drosophila) to x-rays, mated the flies, and observed the number of mutations in the offspring. In 1927, Muller described the results of his experiments in "Artificial Transmutation of the Gene" and "The Problem of Genic Modification".
Format: Articles
Subject: Experiments
"Adenocarcinoma of the Vagina: Association of Maternal Stilbestrol Therapy with Tumor Appearance in Young Women" (1971), by Arthur L. Herbst, et al.
Published in 1971, Adenocarcinoma of the Vagina: Association of Maternal Stilbestrol Therapy with Tumor Appearance in Young Women, by Arthurs L. Herbst and colleagues, was the first piece of literature connecting maternal use of the drug diethylstilbestrol (DES), also called stilbestrol, with the development of a rare and severe form of vaginal cancer in young women. Diethylstilbestrol was later classified as an endocrine disruptor, a substance that disrupts the hormonal function of the body in those exposed to it during development or later in life.
Format: Articles
Subject: Publications
Etienne Stephane Tarnier (1828–1897)
Etienne Stephane Tarnier was a physician who worked with premature infants in France during the nineteenth century. He worked at the Maternité Port-Royal in
Paris, France, a hospital for poor pregnant women. Tarnier developed and introduced prototypes of
infant incubators to the Maternité in 1881. Tarnier's incubators became standard in neonatal care,
especially for premature infants, enabling doctors to save many such infants that previously would
have died.
Format: Articles
Subject: People
Leon Chesley (1908-2000)
Leon Chesley studied hypertension, or high blood pressure, in pregnant women during the mid-twentieth century. Chesley studied preeclampsia and eclampsia, two hypertensive disorders found in approximately five percent of all US pregnancies. In New Jersey and New York, Chesley devoted over forty years to researching preeclampsia and eclampsia. Chesley conducted several long-term studies using the same group of women beginning from their pregnancies.
Format: Articles
Subject: People, Reproduction
“Diethylstilbestrol in the Prevention and Treatment of Complications of Pregnancy” (1948), by Olive Watkins Smith
In 1948, Olive Watkins Smith published 'Diethylstilbestrol in the Prevention and Treatment of Complications of Pregnancy' in the American Journal of Obstetrics and Gynecology. In 632 women treated with diethylstilbestrol, Smith demonstrated that the drug stimulated the production of progesterone, a hormone that regulates the uterine condition during pregnancy.
Format: Articles
Subject: Publications
“Pelvic Scoring for Elective Induction” (1964), by Edward Bishop
In the 1964 article, “Pelvic Scoring for Elective Induction,” obstetrician Edward Bishop describes his method to determine whether a doctor should induce labor, or artificially start the birthing process, in a pregnant woman. Aside from medical emergencies, a woman can elect to induce labor to choose when she gives birth and have a shorter than normal labor. The 1964 publication followed an earlier article by Bishop, also about elective induction.
Format: Articles
Subject: Reproduction, Publications
Franz Josef Kallmann (1897–1965)
Franz Josef Kallmann studied the biological and genetic factors of psychological disorders in Germany and the United States in the twentieth century. His studies at the New York State Psychiatric Institute in New York City, New York, focused on the genetic factors that cause psychiatric disorders. Kallmann was one of the first to use twins to study how a mental disorder is passed on by comparing the occurrence of epilepsy and schizophrenia in both fraternal and identical twins.
Format: Articles
Subject: People
Osmotic Investigations: Studies on Cell Mechanics (1877), by Wilhelm Pfeffer
Wilhelm Pfeffer published his book Osmotische Untersuchungen: Studien Zur Zellmechanik (Osmotic Investigations: Studies on Cell Mechanics) in 1877 during his time as a professor of botany at the University of Basel in Basel, Switzerland. Gordon R. Kepner and Eduard J. Stadelmann translated the book into English in 1985. Verlag von Wilhelm Engelmann in Leipzig, Germany, published the original book in German in 1877 and Van Nostrand Reinhold Company in New York, New York, published the English version in 1985.
Format: Articles
Subject: Publications
"The linear arrangement of six sex-linked factors in drosophila, as shown by their mode of association” (1913), by Alfred Henry Sturtevant
In 1913, Alfred Henry Sturtevant published the results of experiments in which he showed how genes are arranged along a chromosome. Sturtevant performed those experiments as an undergraduate at Columbia University, in New York, New York, under the guidance of Nobel laureate Thomas Hunt Morgan. Sturtevant studied heredity using Drosophila, the common fruit fly. In his experiments, Sturtevant determined the relative positions of six genetic factors on a fly’s chromosome by creating a process called gene mapping.
Format: Articles
Subject: Experiments, Publications