Photoxic compounds (polyacetylenes and thiophenes) and their biological activity were determined on Bidens squarrosa plants by measuring their antibacterial and anti-inflammatory potential. Phototoxic compounds were extracted ...
The integration of biological and chemical data has provided patterns to identify three new Dysidea species from the Gulf of California (Pacific Ocean, Mexico). These three species are differentiated by distinctive ...
There are three domains in living nature: archaea, bacteria and eukarya. It has been shown, trough a number of multivariate tools, that codon usage, a 64 dimensional vector that stablishes how often a given organism makes ...
Oosternum attacomis was collected from two localities from Morelos Stare, Mexico, in refuse dumps of the leaf-cutting ants Atta mexicana. Higher abundance was detected at refuse dumps with lower temperature variation and ...
this required a force of 8.6 +/- 0.81 Newtons (N) (mean +/- SE). In the laboratory, 19.2 +/- 1.10 N are required to break these individuals. We calculated the coefficient of drag (= C-d) as 0.2 at water velocities of 1.5 ...
Accumulation of metals in soil represents a health risk for individuals living near mining areas, especially for children who have a higher susceptibility to metal related diseases. The Taxco mining district in Southern ...
An integrated study of Foraminifera, Ostracoda and lithostratigraphy was conducted on samples of the Tepetate Formation from the Arroyo Colorado locality, Baja California Sur (Mexico). Based on the planktonic Foraminifera, ...
the thiouracil derivatives 5-methyl, 2-thiouracil (5M2TU), 6-methyl, 2-thiouracil (6M2TU), and 5-propyl, 2-thiouracil (5P2TU) and the plastic monomer styrene (SN) and its metabolite styrene 7,8-oxide (SO). The tester strains ...
All the compact intersections of quadrics known as moment-angle manifolds appear as attractors in generalized Hopf bifurcations. To cite this article: M. Chaperon, S. López De Medrano, C. R. Acad. Sci. Paris, Ser. I 346 ...
We present a list of noteworthy distributional records for 12 species of birds in the Mexican state of Guerrero. One (Dendroica striata) is new for the state, and the remaining either significantly expand their known ...
Ruiz, V; Arreola, JL; Ramirez, R; Cisneros-Lira, J; Gaxiola, M; BarRíos, R; Kala, SV; Lieberman, MW; Selman, M; Pardo-Cemo, Annie(2003)
To investigate repair mechanisms in bleomycin-induced pulmonary fibrosis, we used mice deficient in gamma-glutamyl transpeptidase (GGT(-/-)), a key enzyme in glutathione (GSH) and cysteine metabolism. Seventy-two hours ...
New equations of motion for a Bloch electron [momentum p = hk, energy epsilon( m(j) d upsilon(j)\d(t) = -e(E + v x B)(j) are proposed, where v = partial derivative epsilon(n)(p)/partial derivative p is the velocity, and ...
Oxyhemocyanin (OxyHc), blood protein, glucose, acylglycerol (AG), and lactate of Litopenaeus vannamei juveniles were investigated. Statistical analyses were done on baseline values for each metabolite and on OxyHc from ...