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California Condor

Archaeological evidence indicates that condors have been revered by western Native Americans for thousands of years and played a major role in their legends and rituals. Condors were considered sacred and capable of providing communication with the supernatural world as well as supernatural powers. In more recent times, the California condor has ...

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CaliforniaCondor
Geology

Silent Earthquakes

Try this demonstration of earthquake movement. Shape modeling clay into two blocks or get two firm sponge blocks. Press the sides of the blocks together while trying to slide them slowly past each ... Continue reading

SilentEarthquakes
Chemistry

What Are Isotopes?

Many of the known elements from which our universe is constructed exist in various isotopic forms. The identity of any particular element is defined by the number of protons within the nuclei of its ... Continue reading

WhatAreIsotopes
Physics

Carbon Dating From The Skies

Determining the age of relatively recent fossils, those of plants and animals that lived tens of thousands of years ago, is not a guessing game but an exact science. By using carbon dating we can ... Continue reading

CarbonDatingFromTheSkies
Biology

The Human Pancreas

The pancreas is a body organ that does some heavy lifting. It carries on two important functions relating to digestion and the regulation of blood sugar. The exocrine, the larger function, makes ... Continue reading

HumanPancreas

The Neurological Complications Of Lyme Disease

LymeDiseaseLyme disease is caused by a bacterial organism that is transmitted to humans via the bite of an infected tick. Most people bitten by an infected tick develop a characteristic skin rash around the area of the bite. The rash may feel hot to the touch, and vary in size, shape, and color, but it will often have a “bull’s eye” appearance (a red ring with a clear center). However, there are those who will not develop the rash, which makes Lyme disease hard to diagnose because its symptoms and signs mimic those of many other diseases. Seven to 10 days following an infected tick’s bite, the first stage of Lyme disease begins with flu-like symptoms such as fever, chills, swollen lymph nodes, headaches, fatigue, muscle aches, and joint pain.

Neurological complications most often occur in the second stage of Lyme disease, with numbness, pain, weakness, Bell’s palsy (paralysis of the facial muscles), visual disturbances, and meningitis symptoms such as fever, stiff neck, and severe headache. Other problems, which may not appear until weeks, months, or years after a tick bite, include decreased concentration, irritability, memory and sleep disorders, and nerve damage in the arms and legs. Lyme disease is treated with antibiotics under the supervision of a physician.

Most individuals with Lyme disease respond well to antibiotics and have full recovery. In a few patients symptoms of persisting infection may continue or recur, requiring additional antibiotic treatment. Varying degrees of permanent joint or nervous system damage may develop in patients with late chronic Lyme disease. In rare cases, some individuals may die from Lyme disease and its complications.