John M Harris
Biographic Data
| ID | 3736364 |
|---|---|
| NAME | John M Harris |
| GIVEN NAMES | John M |
| FAMILY NAME | Harris |
| SIGNATURE | HARRIS J M |
| AFFILIATIONS | University of Utah |
| ORCID | 0000-0001-6877-4983 |
| VERIFIED | Yes |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 72 |
| WORKS AS AUTHOR | 13 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1992 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
Manhattan’s Street Trees
Stephen Smith launched a 40-year effort to bring trees to New York City streets in 1872, the year he founded the American Public Health Association (APHA). Smith argued that street trees would mitigate the adverse health effects of Manhattan’s summer heat and help purify the air. The young APHA endorsed Smith’s position and gave trees a prominent role in urban sanitation, but public health turned away from trees and urban reform movements as it a…
Tar Trap
We radiocarbon dated the domestic dog found associated with La Brea Woman at the Rancho La Brea tar pits (Los Angeles, CA) to determine the validity of this human–dog connection. The domestic dog yielded a radiocarbon age of 3125 ± 25 14C yr BP (3250–3400 cal yr BP) and La Brea Woman had a re-dated age of 9080 ± 15 14C yr BP (10,220–10,250 cal yr BP). This ∼7000-year offset dispels the hypothesis this was an intentional and ceremonial human–dog b…
Dietary changes of large herbivores in the Turkana Basin, Kenya from 4 to 1 Ma
Significance Stable carbon isotopes give diet information for both modern and fossil mammals and can be used to classify diets as C 4 grazers, C 3 –C 4 mixed, or C 3 browsers. We show that diets of some major African herbivore lineages have significantly changed over the past 4 million years by comparing fossils from the Turkana Basin in Kenya with modern mammals from East and Central Africa. Some fossil assemblages have no modern analogues in Ea…
James Edmund Reeves
AffiliationsAt the time of writing, John M. Harris Jr was with the Office of Continuing Medical Education, College of Medicine, University of Arizona, Tucson
Rampage Violence Requires a New Type of Research
Tragedies such as school shootings and the assault on Congresswoman Gabrielle Giffords share features that define them as acts of “rampage violence.” These types of events can lead to despair about their inevitability and unpredictability. To understand and prevent rampage violence, we need to acknowledge that current discipline-based violence research is not well suited to this specific challenge. There are numerous important, unanswered researc…
A stable isotope aridity index for terrestrial environments
We use the oxygen isotopic composition of tooth enamel from multiple mammalian taxa across eastern Africa to present a proxy for aridity. Here we report tooth enamel δ 18 O values of 14 species from 18 locations and classify them according to their isotopic sensitivity to environmental aridity. The species are placed into two groups, evaporation sensitive (ES) and evaporation insensitive (EI). Tooth enamel δ 18 O values of ES animals increase wit…
A Brief History of Research at Koobi Fora, Northern Kenya
Lake Turkana itself is a geologically recent phenomenon, but what is now the Lake Turkana basin has an archaeological record that stretches back 2.5 million years and a paleontological record that extends back to the Cretaceous Period. Vertebrate fossils were first discovered in the lower Omo Valley at the beginning of the twentieth century, but the first multidisciplinary international expedition to investigate the region was that of the Interna…
Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleoecological studies
Browsing and grazing in elephants
Global vegetation change through the Miocene/Pliocene boundary
Dietary and environmental reconstruction with stable isotope analyses of herbivore tooth enamel from the Miocene locality of Fort Ternan, Kenya
Papanicolaou Smear Recommendations, Patient Complaints, and Patient Satisfaction in Managed-Care Medical Organizations
This study sought to determine whether primary-care physicians, practicing in different types of managed-care medical organizations, were recommending Papanicolaou (Pap) smear screening to their patients. The author also wished to determine whether Pap smear recommendation rates correlated with characteristics of the organizations, with complaint rates, or with survey-based satisfaction measures. Randomly selected medical records (N=10,978) were …
Burghley
Dietary and environmental reconstruction with stable isotope analyses of herbivore tooth enamel from the Miocene locality of Fort Ternan, Kenya
A Brief History of Research at Koobi Fora, Northern Kenya
Lake Turkana itself is a geologically recent phenomenon, but what is now the Lake Turkana basin has an archaeological record that stretches back 2.5 million years and a paleontological record that extends back to the Cretaceous Period. Vertebrate fossils were first discovered in the lower Omo Valley at the beginning of the twentieth century, but the first multidisciplinary international expedition to investigate the region was that of the Interna…
Manhattan’s Street Trees
Stephen Smith launched a 40-year effort to bring trees to New York City streets in 1872, the year he founded the American Public Health Association (APHA). Smith argued that street trees would mitigate the adverse health effects of Manhattan’s summer heat and help purify the air. The young APHA endorsed Smith’s position and gave trees a prominent role in urban sanitation, but public health turned away from trees and urban reform movements as it a…
Burghley
Papanicolaou Smear Recommendations, Patient Complaints, and Patient Satisfaction in Managed-Care Medical Organizations
This study sought to determine whether primary-care physicians, practicing in different types of managed-care medical organizations, were recommending Papanicolaou (Pap) smear screening to their patients. The author also wished to determine whether Pap smear recommendation rates correlated with characteristics of the organizations, with complaint rates, or with survey-based satisfaction measures. Randomly selected medical records (N=10,978) were …
Global vegetation change through the Miocene/Pliocene boundary
Dietary and environmental reconstruction with stable isotope analyses of herbivore tooth enamel from the Miocene locality of Fort Ternan, Kenya
Carbon isotope fractionation between diet and bioapatite in ungulate mammals and implications for ecological and paleoecological studies
Browsing and grazing in elephants
A stable isotope aridity index for terrestrial environments
We use the oxygen isotopic composition of tooth enamel from multiple mammalian taxa across eastern Africa to present a proxy for aridity. Here we report tooth enamel δ 18 O values of 14 species from 18 locations and classify them according to their isotopic sensitivity to environmental aridity. The species are placed into two groups, evaporation sensitive (ES) and evaporation insensitive (EI). Tooth enamel δ 18 O values of ES animals increase wit…
A Brief History of Research at Koobi Fora, Northern Kenya
Lake Turkana itself is a geologically recent phenomenon, but what is now the Lake Turkana basin has an archaeological record that stretches back 2.5 million years and a paleontological record that extends back to the Cretaceous Period. Vertebrate fossils were first discovered in the lower Omo Valley at the beginning of the twentieth century, but the first multidisciplinary international expedition to investigate the region was that of the Interna…
Rampage Violence Requires a New Type of Research
Tragedies such as school shootings and the assault on Congresswoman Gabrielle Giffords share features that define them as acts of “rampage violence.” These types of events can lead to despair about their inevitability and unpredictability. To understand and prevent rampage violence, we need to acknowledge that current discipline-based violence research is not well suited to this specific challenge. There are numerous important, unanswered researc…
James Edmund Reeves
AffiliationsAt the time of writing, John M. Harris Jr was with the Office of Continuing Medical Education, College of Medicine, University of Arizona, Tucson
Dietary changes of large herbivores in the Turkana Basin, Kenya from 4 to 1 Ma
Significance Stable carbon isotopes give diet information for both modern and fossil mammals and can be used to classify diets as C 4 grazers, C 3 –C 4 mixed, or C 3 browsers. We show that diets of some major African herbivore lineages have significantly changed over the past 4 million years by comparing fossils from the Turkana Basin in Kenya with modern mammals from East and Central Africa. Some fossil assemblages have no modern analogues in Ea…
Tar Trap
We radiocarbon dated the domestic dog found associated with La Brea Woman at the Rancho La Brea tar pits (Los Angeles, CA) to determine the validity of this human–dog connection. The domestic dog yielded a radiocarbon age of 3125 ± 25 14C yr BP (3250–3400 cal yr BP) and La Brea Woman had a re-dated age of 9080 ± 15 14C yr BP (10,220–10,250 cal yr BP). This ∼7000-year offset dispels the hypothesis this was an intentional and ceremonial human–dog b…
Manhattan’s Street Trees
Stephen Smith launched a 40-year effort to bring trees to New York City streets in 1872, the year he founded the American Public Health Association (APHA). Smith argued that street trees would mitigate the adverse health effects of Manhattan’s summer heat and help purify the air. The young APHA endorsed Smith’s position and gave trees a prominent role in urban sanitation, but public health turned away from trees and urban reform movements as it a…
Biology (7 works) · Ecology (7 works) · Evolution and Paleontology Studies (5 works) · Geography (5 works) · Pleistocene-Era Hominins and Archaeology (5 works) · Geology (4 works) · Isotope Analysis in Ecology (4 works) · Medicine (4 works) · Archaeology (3 works) · Enamel paint (3 works)