Photo Researchers ftp March 2011

Color enhanced micrograph of a thin section of African Swine Fever virus. It has formed in the cytoplasm of a tissue culture of the infected primary s...

Color enhanced micrograph of a thin section of African Swine Fever virus. It has formed in the cytoplasm of a tissue culture of the infected primary s...

Color enhanced micrograph of asbestos fibers. Magnification: 47,500x

Color enhanced micrograph of asbestos fibers. Magnification: 47,500x

Color enhanced micrograph of asbestos fibers. Magnification: 47,500x

Color enhanced micrograph of Treponema pallidum, a spirochaete bacterium. Syphilis is caused by a subspecies, T. Pallidum pallidum.

Color enhanced micrograph of Treponema pallidum, a spirochaete bacterium. Syphilis is caused by a subspecies, T. Pallidum pallidum.

Color enhanced micrograph of Treponema pallidum, a spirochaete bacterium. Syphilis is caused by a subspecies, T. Pallidum pallidum.

Color enhanced light micrograph of Bacillus cereus, showing the cell wall and the protoplasmic membrane. Bacillus cerus is a species of Gram-positive...

Color enhanced light micrograph of Bacillus cereus, showing the cell wall and the protoplasmic membrane. Bacillus cerus is a species of Gram-positive...

Color enhanced light micrograph of Bacillus cereus, showing the cell wall and the protoplasmic membrane. Bacillus cerus is a species of Gram-positive...

Color enhanced micrograph of the attachment of several treponemes (Treponema pallidum) to testicular cell membranes 22 hours post-infection (1micron =...

Color enhanced micrograph of the attachment of several treponemes (Treponema pallidum) to testicular cell membranes 22 hours post-infection (1micron =...

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Color enhanced scanning electron micrograph (SEM) of lymphocytes undergoing apoptosis.

Outline of a head with a sphere of binary numbers, the language of computers.

Outline of a head with a sphere of binary numbers, the language of computers.

Conceptual illustration of a human brain and syringes, illustrating a brain under the effect of drugs.

Outline of a head with an exclamation point.

Outline of a head with an exclamation point.

Conceptual illustration showing futuristic head with a sphere of binary numbers, the language of computers.

Conceptual illustration showing futuristic head with a sphere of binary numbers, the language of computers.

Conceptual healthcare image showing capsule, stethoscope, and EKG (electrocardiograph) readout.

Conceptual illustration showing human head with a sphere of binary numbers, the language of computers.

Conceptual illustration showing human head with a sphere of binary numbers, the language of computers.

Photo illustration of a young women with hypertension, showing sphygmomanometer (blood pressure meter) and an EKG (electrocardiograph) readout.

Photo illustration of a young women with hypertension, showing sphygmomanometer (blood pressure meter) and an EKG (electrocardiograph) readout.

Outline of a head with a question mark.

Outline of a head with a question mark.

Conceptual illustration of the soul.

Conceptual illustration of Alzheimer's or other brain disease. This image could be used to evoke the hope of a promising new treatment.

This illustration pays homage to the famous drawing "Vitruvian Man" by Leonardo Da Vinci. Other elements include DNA and stem cells, which may be used...

Conceptual illustration of Alzheimer's or other brain disease. This image could be used to evoke the hope of a promising new treatment.

Conceptual illustration of Alzheimer's or other brain disease. This image could be used to evoke the hope of a promising new treatment.

Illustration showing the main structure of the knee, with muscles cut away, and the ligaments and patellar structure apparent.

This illustration depicts the stages of growth undergone by a human embryo from a fertilized ovum to the ninth month. After the zygote stage, the grow...

Conceptual image of the human brain, with gears superimposed.

Illustration of the human brain.

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...