Showing 51 - 100 of 144 Items

Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Calf greeting dog through wire fence

Creator: Leon B. Strout, photographer



Cows on road, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer



Woman with two ducks in basket

Date: 1919-01-01

Creator: Leon B. Strout, photographer

A woman stands in the street, holding an umbrella, a woven purse, and a woven basket with two white ducks sitting inside.


Black Fox farm

Creator: Leon B. Strout, photographer



Horse with logs in field, Flirey, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer

A horse with a plow and logs stands at the edge of an open field and a cobblestone path. Housing labelled "Battle area?"


Woman with two ducks in basket

Date: 1919-01-01

Creator: Leon B. Strout, photographer

A woman stands in the street, holding an umbrella, a woven purse, and a woven basket with two white ducks sitting inside.


Farmers with ox cart

Date: 1919-01-01

Creator: Leon B. Strout, photographer



Natural variation in chromatin conformation among populations of Drosophila melanogaster

Date: 2021-01-01

Creator: Utku Ferah

Access: Open access

The role of polymorphisms in protein-coding and non-coding regions of the genome during adaptive evolution has been a long-debated subject in evolutionary biology. Although the importance of coding-sequence polymorphisms during evolution has been well-documented, the influence of non-coding regions of the genome on phenotypic diversity and adaptive evolution remains less clear. Enhancers are cis-regulatory elements that dictate gene transcription rates, times, and locations; enhancers are located in noncoding regions and, when active, exhibit an open-chromatin conformation. In the current study, we identified putative enhancers that differ in chromatin conformation among three natural isolates of Drosophila melanogaster from different parts of the world. The genome-wide numbers of enhancers active in some natural isolates—but inactive in others—will provide insight into the amount of raw material available for evolution due to transcriptional regulatory variation.


Young man and horse
A young man stands next to a horse.


Young man and horse
A young man stands next to a horse.


Unknown Scottish Terrier

Creator: Leon B. Strout, photographer

A small black Scottie dog on a leash, possibly belonging to the family of Harold J. Pulsifer.


Unknown Scottish Terrier

Creator: Leon B. Strout, photographer

A small black Scottie dog on a leash, possibly belonging to the family of Harold J. Pulsifer.


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm, possibly in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm, possibly in Poland, ME


Bull, Millay Farm, Bowdoinham, ME

Creator: Leon B. Strout, photographer

A bull stands in front of a barn at Millay Farm, Bowdoinham, ME. Its nose ring is hooked onto and pulled by a bull staff, used for leading the bull while keeping a distance between the bull and handler.


Bull, Millay Farm, Bowdoinham, ME

Creator: Leon B. Strout, photographer

A bull stands in an orchard at Millay Farm in Bowdoinham, ME. Its nose ring is hooked onto a bull staff, used for leading the bull while keeping a distance between the bull and handler.


"At the Thorndike Lunch", Bowdoin College, Brunswick, ME

Creator: Leon B. Strout, photographer

A squirrel eats beneath the Thorndike Oak at Bowdoin College, Brunswick, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle grazing at roadside

Date: 1919-01-01

Creator: Leon B. Strout, photographer

Cattle graze at the edges of a dirt road, supervised by one person


Pigs in field

Date: 1919-01-01

Creator: Leon B. Strout, photographer



Shoeing oxen, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer

View of farmers with two oxen in shoeing stocks


Shoeing oxen, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer

View of farmers with two oxen in shoeing stocks


Black Fox farm

Creator: Leon B. Strout, photographer



Black Fox farm

Creator: Leon B. Strout, photographer



Horses and farmers plowing land
Two horses and two people plow a field.


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm, possibly in Poland, ME


Bull, Millay Farm, Bowdoinham, ME

Creator: Leon B. Strout, photographer

A bull stands in an orchard at Millay Farm in Bowdoinham, ME. Its nose ring is hooked onto a bull staff, used for leading the bull while keeping a distance between the bull and handler.


Bull, Millay Farm, Bowdoinham, ME

Creator: Leon B. Strout, photographer

A bull stands in an orchard at Millay Farm in Bowdoinham, ME. Its nose ring is hooked onto a bull staff, used for leading the bull while keeping a distance between the bull and handler.


Sheep grazing, Bowdoinham, ME

Creator: Leon B. Strout, photographer

Sheep from Long Branch Sheep Farm in Bowdoinham graze at the side of a dirt road.


Sheep grazing

Creator: Leon B. Strout, photographer

A flock of sheep grazes in tall grass behind a house


"At the Thorndike Lunch", Bowdoin College, Brunswick, ME

Creator: Leon B. Strout, photographer

A squirrel eats beneath the Thorndike Oak at Bowdoin College, Brunswick, ME


"At the Thorndike Lunch", Bowdoin College, Brunswick, ME

Creator: Leon B. Strout, photographer

A squirrel eats beneath the Thorndike Oak at Bowdoin College, Brunswick, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Cattle at Morey Farm, Poland, ME

Creator: Leon B. Strout, photographer

Cows graze in a small field on Morey Farm in Poland, ME


Long Branch Sheep Farm, Bowdoinham, ME

Date: 1927-01-01

Creator: Leon B. Strout, photographer

A large flock of sheep grazes in an open field at Long Branch Sheep Farm in Bowdoinham, owned by W. B. Kendall.


Sheep in field, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer



Cows in canal, France

Date: 1919-01-01

Creator: Leon B. Strout, photographer



Cattle outside barn

Creator: Leon B. Strout, photographer



Black Fox farm

Creator: Leon B. Strout, photographer



Miniature of Role of Polycomb group proteins in regulation of <i>eyes absent</i> gene expression in <i>Drosophila melanogaster</i>
Role of Polycomb group proteins in regulation of eyes absent gene expression in Drosophila melanogaster
This record is embargoed.
    • Embargo End Date: 2027-05-16

    Date: 2024-01-01

    Creator: Joanne Du

    Access: Embargoed



      Horses and farmers plowing land
      Two horses and two people plow a field.


      Unknown Scottish Terrier

      Creator: Leon B. Strout, photographer

      A small black Scottie dog on a leash, possibly belonging to the family of Harold J. Pulsifer.


      Portrait of small dog
      Portrait of a small dog wearing a collar.


      Cattle at Morey Farm, Poland, ME

      Creator: Leon B. Strout, photographer

      Cows graze in a small field on Morey Farm, possibly in Poland, ME