Reproductive biology in Acacia caven (Mol.) Mol. (Leguminosae) in the central region of Argentina

1995 ◽  
Vol 119 (1) ◽  
pp. 65-76
Author(s):  
JOSE LUIS BARANELLI ◽  
ANDREA A. COCUCCI ◽  
ANA M. ANTON
Keyword(s):  
Reproductive Biology ◽  
Central Region ◽  
Acacia Caven

Reproductive biology of the skinkScincus mitranus(Anderson, 1871) in the central region of Saudi Arabia

1997 ◽  
Vol 36 (2) ◽  
pp. 319-326 ◽  
Author(s):  
Awadh M. Al-Johany ◽  
Mohamed K. Al-Sadoon ◽  
Saud A. Al-Farraj
Keyword(s):  
Saudi Arabia ◽  
Reproductive Biology ◽  
Central Region

Interstellar gas in the central region of the Galaxy

1967 ◽  
Vol 31 ◽  
pp. 239-251 ◽  
Author(s):  
F. J. Kerr
Keyword(s):  
Central Region ◽  
Galactic Plane ◽  
Neutral Hydrogen ◽  
Continuum Emission ◽  
Galactic Centre ◽  
Interstellar Gas ◽  
Hydrogen Recombination ◽  
The Galaxy ◽  
Centre Region ◽  
The Relationship

A review is given of information on the galactic-centre region obtained from recent observations of the 21-cm line from neutral hydrogen, the 18-cm group of OH lines, a hydrogen recombination line at 6 cm wavelength, and the continuum emission from ionized hydrogen.Both inward and outward motions are important in this region, in addition to rotation. Several types of observation indicate the presence of material in features inclined to the galactic plane. The relationship between the H and OH concentrations is not yet clear, but a rough picture of the central region can be proposed.

Fine structure and possible functions of the hermaphrodite duct of some pulmonate snails (Mollusca: Gastropoda)

1990 ◽  
Vol 48 (3) ◽  
pp. 68-69
Author(s):  
Alan N. Hodgson
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Fine Structure ◽  
Seminal Vesicle ◽  
Reproductive Biology ◽  
Light Microscope ◽  
Light Microscope Level ◽  
Transmission Electron ◽  
Standard Techniques

The hermaphrodite duct of pulmonate snails connects the ovotestis to the fertilization pouch. The duct is typically divided into three zones; aproximal duct which leaves the ovotestis, the middle duct (seminal vesicle) and the distal ovotestis duct. The seminal vesicle forms the major portion of the duct and is thought to store sperm prior to copulation. In addition the duct may also play a role in sperm maturation and degredation. Although the structure of the seminal vesicle has been described for a number of snails at the light microscope level there appear to be only two descriptions of the ultrastructure of this tissue. Clearly if the role of the hermaphrodite duct in the reproductive biology of pulmonatesis to be understood, knowledge of its fine structure is required.Hermaphrodite ducts, both containing and lacking sperm, of species of the terrestrial pulmonate genera Sphincterochila, Levantina, and Helix and the marine pulmonate genus Siphonaria were prepared for transmission electron microscopy by standard techniques.

Access to effective ABA treatment in Ohio: Central region

2004 ◽  
Author(s):  
Christine Averill ◽  
Jacquie Wynn
Keyword(s):  
Central Region
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