Life Sciences Commons^™

El Oso Frontino, Rey De Los Andes, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Situación De La Conservación De Cetáceos En Venezuela, Aldemaro Romero Jr., A. Ignacio Agudo

Publications and Research

No abstract provided.

Situación De La Conservación De Cetáceos En Venezuela (2nd Ed), Aldemaro Romero Jr., A. Ignacio Agudo

Publications and Research

No abstract provided.

El Auyantepuy: La Montaña Del Paraíso, Aldemaro Romero Jr., Maria Belen Morales

Publications and Research

No abstract provided.

Los Cetáceos Recientes De Venezuela, Aldemaro Romero Jr., Ana Mayayo, A. Ignacio Agudo

Publications and Research

No abstract provided.

Ecología Profunda, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

El Mundo Se Desertifica A Pasos Agigantados, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Auditoría Ambiental De Venezuela 1990. Reporte De La Situación Ecológica Del País Hasta El 31 De Diciembre De 1990, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Structural And Functional Studies Of The Tryptophan Operon Of Bacillus Pumilus, Miriam V. Rivas

Dissertations, Theses, and Capstone Projects

The nucleotide sequence of the trpE, trpD, and 5’trpC genes of the Bacillus pumilus tryptophan operon was determined for a comparative evaluation. DNA comparisons to the tryptophan operon of a related species, Bacillus subtilis, showed 66% base homology. The overlapping of translational start and stop signals indicate that, similar to Escherichia coli, the trpE, trpD, and trpC genes of the B.pumilus trp operon are translationally coupled. The values for amino acid identity between the two Bacilli showed 68, 62, and 65% for trpE, trpD and 5’trpC genes, respectively. Charge related residues …

Investigaciones Para La Conservación De Zonas Áridas Y Semiáridas En Venezuela, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Iniciativas De Manejo Costero En Venezuela, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Los Tiburones Encontraron La Horma De Su Zapato, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Siguen De Incógnito En El Amazonas Un Millón De Especies Vegetales Y Animales, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Bancos De Medicamentos Gratuitos En El Reino Vegetal, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Amino Acids And N-Acetyl-Aspartyl-Glutamate As Neurotransmitter Candidates In The Monkey Retinogeniculate Pathways, Ricardo A. Molinar-Rode

Dissertations, Theses, and Capstone Projects

The lateral geniculate nucleus (LGNd) receives chemically identified inputs from brain stem structures, the thalamus and visual cortex. The identity of the neurotransmitter(s) in the retinal input, however, is unknown.

To investigate the possibility that some amino acids and certain dipeptides, such as N-acetyl-aspartyl-glutamate (NAAG), fulfill this function, changes in their concentration were measured in the optic tract, parvocellular and magno-cellular segments of the LGNd, superior colliculus and visual cortex of six monkeys (Macaca fascicularis), seven days after right optic tractotomy. The LGNd was studied also in two additional macaques, three months after occipital lobectomy. Tissue was frozen within five …

Observaciones Preliminares Sobre La Conducta En Individuos Cavernícolas De Trichomycterus Conradi (Pisces: Trichomycteridae), Aldemaro Romero Jr.

Publications and Research

No abstract provided.

La Introducción De Especies Exóticas: El Caso Caribe, Aldemaro Romero Jr., Ana Mayayo

Publications and Research

No abstract provided.

Por Un Millón De Especies, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Los Zoológicos: ¿Último Recurso?, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Specialized Petiole Feeding Behavior In Cichlasoma Tuba, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

La Extinción Es Para Siempre, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Venezuela Pierde Su Diversidad Genética, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Orquídeas: Crimen Y Castigo, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Ontogenetic Change In Phototactic Responses Of Surface And Cave Populations Of Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Can Evolution Regress?, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Morphological Variation Accompanying Cave Evolution In Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.

Publications and Research

No abstract provided.

¿Adiós A Las Mariposas Andinas?, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Pirañas Imposibles, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Aspects Of Mitochondrial Oxidative Metabolism, Leslie Kushner

Dissertations, Theses, and Capstone Projects

The effects of metabolic intermediates and coenzymes on the activities of fatty acyl-CoA synthetase and carnitine palmitoyltransferase (CPT) in rat heart mitochondria were studied. ADP and palmitoyl-l-carnitine were weak inhibitors of fatty acyl-CoA synthetase. CPT A was inhibited 59.3% by 100 (mu)M succinyl-CoA. However, succinate thiokinase activity in rat heart cytosol was too low to maintain a succinyl-CoA concentration sufficient to affect the activity of CPT A. There was no indication that fatty acid oxidation in rat heart mitochondria is controlled via the regulation of either CPT A or fatty acyl-CoA synthetase.

The dependence of the oxidation of unsaturated fatty …

The Ontogeny And Functional Significance Of Luteinizing Hormone Releasing Hormone (Lhrh) Containing Centers Of The Brain Of The Freshwater Teleost, Xiphophorus Maculatus, Leslie R. Halpern-Sebold

Dissertations, Theses, and Capstone Projects

The use of cytometric, immunocytochemical and radioimmunological methods has allowed the investigation of the ontogeny and functional significance of LHRH containing centers in sibling platyfish (Xiphophorus maculatus) genetically determined to reach sexual maturity at different ages and in adult fish which were hypophysectomized and given replacement therapy with gonadotropin.

There is a sequential development of three immunoreactive (ir-) LHRH centers in the brain that is directly related to stage, not age of sexual maturation. The first region to contain ir-LHRH is the nucleus olfactoretinalis (NOR). Ir-LHRH then appears in the nucleus preopticus periventricularis (NPP), followed by the nucleus lateralis tuberis …