spicule
spicule A spike-like jet in the upper chromosphere of the Sun, visible especially in
Hα light. Spicules rise upwards into the corona at velocities of about 30 km/s, reaching altitudes of 9000 km in about 90 s. They last about 15 min, ending their lives by fading rather than descending. They tend to be clustered, giving the appearance of porcupine quills on the solar limb. Seen against the disk, in Hα light, they seem to be identifiable as fine
mottles, light or dark depending on their height (although they always appear dark when observed in the red
line wing of the Hα line). Fine mottles form clusters with their bases in the coarse mottles which outline the
chromospheric network. At the centre of the Sun's disk, clumps of spicules form radiating patterns called
rosettes.
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Hemoglobin molecule's secret revealed. (how hemoglobin carries oxygen and disposes of carbon dioxide)
Magazine article from: Science News; 3/23/1996; ; 700+ words
; ...with a potent vasoconstrictor, hemoglobin-and the larger mystery. They...discovered an elusive component of hemoglobin's dynamic respiratory cycle that...vessels and ensure that oxygen-rich hemoglobin can penetrate even the narrowest...
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Hemoglobin Old Dominion/Burton-upon-Trent, (beta 143) (H21) His -> Tyr, Codon 143 CAC -> TAC--a variant with altered oxygen affinity that compromises measurement of glycated hemoglobin in diabetes mellitus: Structure, function, and DNA sequence
Magazine article from: Mayo Clinic Proceedings; 4/1/1998; ; 700+ words
; ...nature and characteristics of a unique hemoglobin variant that causes a spurious increase in glycated hemoglobin (Hb Al). Material and Methods: Blood...from four unrelated persons with this hemoglobin variant were examined by conventional...
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Hemoglobin C Foils Blood Cell Remodeling: Malaria Protection.
Magazine article from: BIOWORLD Today; 11/3/2009; 700+ words
; ...population. Caused by a mutation in the hemoglobin chain, its effects depend entirely...amino acid substitution in the hemoglobin molecule, the oxygen-carrying molecule in red blood cells. Regular hemoglobin is known as hemoglobin A, whereas...
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Hemoglobin-based agent reduces need for transfusion during heart surgery.
Newspaper article from: Blood Weekly; 1/9/2003; 700+ words
; ...that an agent made of purified human hemoglobin appears safe and may be effective when...the benefits of the agent, known as hemoglobin raffimer, are proved in subsequent...Anesthesia. The study also showed although hemoglobin raffimer - like other oxygen therapeutics...
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WITH HEMOGLOBIN C, MALARIA PARASITE CAN'T HIDE HEMOGLOBIN C FOILS BLOOD CELL REMODELING: MALARIA PROTECTION.
Magazine article from: BIOWORLD Today; 6/28/2005; ; 700+ words
; ...population. Caused by a mutation in the hemoglobin chain, its effects depend entirely...amino acid substitution in the hemoglobin molecule, the oxygen-carrying molecule in red blood cells. Regular hemoglobin is known as hemoglobin A, whereas...
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Normalizing hemoglobin aids hemodialysis patients.
Newspaper article from: Health & Medicine Week; 7/5/2004; 700+ words
; ...NewsRx.net) -- Normalizing the hemoglobin concentration in hemodialysis patients...immunosuppression. It is not known whether hemoglobin normalization improves immune status...randomized to normal versus anemic blood hemoglobin concentration," researchers in the...
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Hemoglobin Profiles and Hematologic Features of Thalassemic Newborns: Application to Screening of [alpha]-Thalassemia 1 and Hemoglobin E
Magazine article from: Archives of Pathology & Laboratory Medicine; 11/1/2008; ; 700+ words
; ...disorders is significant, study of the hemoglobin and hematologic features of normal and...is necessary. Objective.-To study hemoglobin and hematologic characteristics of normal...methods for α-thalassemia 1 and hemoglobin E. Design.-Study was made of 402...
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Hemoglobin concentrations influence birth outcomes in pregnant African-American adolescents1,2
Magazine article from: The Journal of Nutrition; 7/1/2003; ; 700+ words
; ...2003. ABSTRACT Relationships between hemoglobin concentrations and birth outcomes have...used to address relationships between hemoglobin and adverse birth outcomes. The prevalence...significantly associated with lower hemoglobin during pregnancy. Adolescents with...
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Hemoglobin-Based Agent Reduces Need for Transfusion During Heart Surgery.
News Wire article from: Ascribe Higher Education News Service; 12/12/2002; 700+ words
; ...that an agent made of purified human hemoglobin appears safe and may be effective when...the benefits of the agent, known as hemoglobin raffimer, are proven in subsequent...Anesthesia. The study also showed although hemoglobin raffimer - like other oxygen therapeutics...
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Hemoglobin C and Hemoglobin O-Arab Variants Can Be Diagnosed Using the Bio-Rad Variant II High-Performance Liquid Chromatography System Without Further Confirmatory Tests
Magazine article from: Archives of Pathology & Laboratory Medicine; 4/1/2004; ; 700+ words
; ...test, all non-A, non-S abnormal hemoglobin (Hb) variants must be confirmed by...Design.-We reviewed 48478 consecutive hemoglobin identification test results performed...We identified 3668 cases of abnormal hemoglobin variants, including 660 cases of Hb...
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Hemoglobin Test
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...people inherit hemoglobin with an abnormal...These abnormal hemoglobins cause diseases...sickle cell or Hemoglobin C disease. Special...process called hemoglobin electrophoresis...identify abnormal hemoglobins. Preparation...
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Fetal Hemoglobin Test
Encyclopedia entry from: Gale Encyclopedia of Children's Health: Infancy through Adolescence
...life and proper function. Hemoglobin consists primarily of iron...protein, which together give hemoglobin its ability to carry oxygen...actually create six different hemoglobins that vary in their amino...Among the six types of hemoglobin, HbA is the normal adult...
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Hemoglobin
Book article from: Chemistry: Foundations and Applications
...from chicken hemoglobin in 35 and 45...human, their hemoglobins are identical...several kinds of hemoglobin exist in a given...types of human hemoglobins exist at embryonic...polypeptide chain of a hemoglobin molecule coils...
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Hemoglobin Electrophoresis
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...Hgb C is another hemoglobin variant found in African...Each of the major hemoglobin types has an electrical...normal and abnormal hemoglobins is electrophoresis...involves subjecting hemoglobin components from dissolved...
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Glycosylated Hemoglobin Test
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
Glycosylated Hemoglobin Test Definition Glycosylated hemoglobin is a test that indicates how much sugar has been in...level is at the time of the test. The glycosylated hemoglobin test reveals how close to normal it has been during...
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