36 results found

Search Results for: person-years

Person-years

Definition The total sum of the number of years that each member of a study population has been under observation; e.g.,... Read More

Respiration rate

Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More

SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)

Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004)   Introduction: It has been... Read More

Dead Man Walking

Dead Man Walking: Wade Davis and the Secret of the Zombie Poison By Patrick D. Hahn Accepted on September 4, 2007 Twenty... Read More

Prodromal period

There are five stages (or phases) of a disease. (Hattis, 2020). These stages are (1) Incubation period, (2) Prodromal... Read More

Inoculation

Inoculation Definition In Immunology, inoculation is defined as the process of introducing an antigenic substance or... Read More

Pathogen

What are Pathogens? Pathogens are defined as microscopic organisms, including viruses, bacteria, fungi, and parasites that... Read More

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Spontaneous generation

Definition noun plural: spontaneous generations The previously popular notion that living organisms arise or develop from... Read More

Kingdom Animalia

Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More

IQ, Creativity and Learning

Evolution of Human Intelligence Humans, as evolved as we are, are the species most capable of exhibiting intelligence and... Read More

Overview of Chirology

Psychodiagnostic Chirology (PDC) is a comprehensive diagnostic discipline applied by professional behavioral specialists in... Read More

Organ

Definition Of Organ An organ is a collection of tissues that carries out a function or set of related ones. An organ often... Read More

Biogenesis

Biogenesis Definition Biogenesis refers to the idea or the process whereby a living thing comes from another living thing,... Read More

Blindness – Evolutionary regression? Maybe not!

The recent Netflix's hit flick, Bird Box, surely startled the viewers with the thrilling scenarios revolving around the... Read More

Imprinting

What does imprinting mean? Have you watched the TV cartoon show “Tom and Jerry” with an episode of a duck and its... Read More

Producer

Producer Definition Producers are organisms that can produce organic matter using an external energy source. They include... Read More

Fecundity

Fecundity Definition The meaning of fecundity is the reproductive rate (fecundity rate) or the performance of an individual... Read More

Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads

Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads ... Read More

Scared to Death

Scared to Death: Self-Willed Death, or the Bone-Pointing Syndrome   by Patrick D Hahn   Accepted on: September 4,... Read More

Men could go extinct? Y chromosome disappearing slowly

Hold on to your seats, gentlemen -- the male chromosome (Y chromosome) disappearing at a certain rate could absolutely be... Read More

Sympatric speciation

Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Environment

Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More

Degenerative disease

Degenerative Disease Definition A degenerative disease is defined as a disease characterized by the worsening condition due... Read More

Inbreeding

Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More

Recalcitrant

Several words of the English language find wide usage in subjects as diverse as literature, science, social science,... Read More

Zoology

Zoology Definition Zoology is an ever-evolving branch of Biology dealing with the members of the Kingdom Animalia. It... Read More

Sexual selection

What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... Read More

Evolution

Evolution Definition Evolution is defined as a change in the genetic composition of a population over successive... Read More

The FIFTH MIRACLE: The Search for the Origin and Meaning of Life

 The FIFTH MIRACLE: The Search for the Origin and Meaning of Life    ... Read More

First time! Human blood cell turned into a young sex cell

In essence, our body consists of two major types of cells – one group involved directly in reproducing sexually (called... Read More

Osteocyte

Osteocyte Definition The osteocyte is a mature bone cell. Other bone cell types are osteoprogenitor cells, osteoblasts, and... Read More

FAAH-OUT mutation for a life of no pain – No FAAH, no pain

A Scottish woman claims that she has not experienced pain over some supposedly painful conditions, like a severe joint... Read More

Pupil

pupil 1. A youth or scholar of either sex under the care of an instructor or tutor. Too far in years to be a pupil now.... Read More

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More