Paleocene ostreids from the Las Encinas Formation (Parras Basin, Difunta Group), northeastern Mexico; stratigraphic implications

1999 ◽  
pp. 105-110 ◽  
Author(s):  
Francisco J. Vega ◽  
María del Carmen Perrilliat ◽  
Luis Miguel Mitre-Salazar
Keyword(s):  
Northeastern Mexico

Continuities in Architectural Traditions: The Subterráneos of Prehistoric and Modern Northern Mexico

1997 ◽  
Vol 18 (2) ◽  
pp. 105-120
Author(s):  
Solveig A. Turpin ◽  
Herbert H. Eling ◽  
Moisés Valadez Moreno
Keyword(s):  
New World ◽  
Site Occupancy ◽  
Northern Mexico ◽  
Conventional View ◽  
Northeastern Mexico ◽  
Small Valley

The recent discovery of a pit house village, 40 km northwest of Monterrey, challenges the conventional view of inland northeastern Mexico as the domain of purely nomadic hunters and gatherers throughout prehistory. Las Casitas consists of fifty-three subterranean rooms and forty-eight smaller depressions aligned in three slightly arcuate tiers in a small valley adjacent to Boca de Potrerillos, an extremely large open campsite and petroglyph complex that is now an archeological park. Other features of the site are some 325 hearths that surround the depressions and a very limited artifact assemblage numbering only thirty-seven items. Two hearths produced radiocarbon samples that date site occupancy to approximately a.d. 1450, just prior to the arrival of the Spanish in the New World. Las Casitas provides the first evidence of semi-sedentary, surplus producing populations in central northeastern Mexico.

MINERALOGY AND GEOCHEMISTRY OF THE SAN FELIPE FORMATION (UPPER CRETACEOUS) IN THE PEDRO CARRIZALES LOCALITY (RAYONES, NUEVO LEÓN), NORTHEASTERN MÉXICO

2020 ◽  
Author(s):  
Isabel Cossío-Dülmer ◽  
◽  
Carolina Cossío-Dülmer ◽  
Fernando Velasco Tapia ◽  
Yolanda Pichardo-Barrón ◽  
...  
Keyword(s):  
Upper Cretaceous ◽  
Nuevo Leon ◽  
Nuevo León ◽  
Northeastern Mexico

scholarly journals Wood Volume Production and Use of 10 Woody Species in Semiarid Zones of Northeastern Mexico

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Rahim Foroughbakhch ◽  
Artemio Carrillo Parra ◽  
Jorge Luis Hernández Piñero ◽  
Marco Antonio Alvarado Vázquez ◽  
Alejandra Rocha Estrada ◽  
...  
Keyword(s):  
Native Species ◽  
Growth Parameters ◽  
Eucalyptus Camaldulensis ◽  
Woody Species ◽  
Research Strategy ◽  
Wood Volume ◽  
Rural Villages ◽  
Acacia Farnesiana ◽  
Volume Production ◽  
Northeastern Mexico

A research strategy was established to analyze the structure of timber trees in terms of forest productivity (volume and wood density) of 10 species. The native speciesAcacia farnesiana, Acacia schaffneri,Bumelia celastrina,Cercidium macrun,Condalia hookeri,Ebenopsis ebano,Helietta parvifolia, andProsopis laevigataand the exotic speciesEucalyptus camaldulensisandLeucaena leucocephalawere chosen due to their ecological and economic importance to the rural villages of northeastern Mexico. Measurements of different growth parameters and volume of trees were evaluated. The introduced speciesE. camaldulensisandL. leucocephalashowed the best performance in wood volume production per tree and per hectare when compared to the native species. Likewise, among the native species,E. ebano,P. laevigata,C. hookeri, andA. farnesianatended to show better characteristics in terms of wood volume production in comparison toH. parvifolia,A. schaffneri,C. macrum, andB. celastrina. Results showed a high diversity on the properties studied. The high biomass produced by most of the species considered in this study revealed their great energetic potential when used as wood and firewood or vegetal charcoal.

Subtropical Apis mellifera (Hymenoptera: Apidae) Swarming Dynamics and Africanization Rates in Northeastern Mexico and Southern Texas

1996 ◽  
Vol 89 (2) ◽  
pp. 243-251 ◽  
Author(s):  
W. L. Rubink ◽  
P. Luévano-Martinez ◽  
E. A. Sugden ◽  
W. T. Wilson ◽  
A. M. Collins
Keyword(s):  
Apis Mellifera ◽  
Northeastern Mexico

scholarly journals Type 2 diabetes and tuberculosis in a dynamic bi-national border population

2006 ◽  
Vol 135 (3) ◽  
pp. 483-491 ◽  
Author(s):  
B. I. RESTREPO ◽  
S. P. FISHER-HOCH ◽  
J. G. CRESPO ◽  
E. WHITNEY ◽  
A. PEREZ ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Large Population ◽  
The United States ◽  
South Texas ◽  
Control Programmes ◽  
Mexico Border ◽  
Northeastern Mexico ◽  
The Impact ◽  
Border Population

The epidemic of type 2 diabetes in the United States prompted us to explore the association between diabetes and tuberculosis (TB) on the South Texas–Mexico border, in a large population of mostly non-hospitalized TB patients. We examined 6 years of retrospective data from all TB patients (n=5049) in South Texas and northeastern Mexico and found diabetes self-reported by 27·8% of Texan and 17·8% of Mexican TB patients, significantly exceeding national self-reported diabetes rates for both countries. Diabetes comorbidity substantially exceeded that of HIV/AIDS. Patients with TB and diabetes were older, more likely to have haemoptysis, pulmonary cavitations, be smear positive at diagnosis, and remain positive at the end of the first (Texas) or second (Mexico) month of treatment. The impact of type 2 diabetes on TB is underappreciated, and in the light of its epidemic status in many countries, it should be actively considered by TB control programmes, particularly in older patients.

New breeding localities of Worthen's Sparrows in northeastern Mexico

2010 ◽  
Vol 81 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Ricardo Canales-del Castillo ◽  
José I. González-Rojas ◽  
Irene Ruvalcaba-Ortega ◽  
Ángel García-Ramírez
Keyword(s):  
Northeastern Mexico

scholarly journals Frequency of SMN1 deletion carriers in a Mestizo population of central and northeastern Mexico: A pilot study

2015 ◽  
Vol 9 (6) ◽  
pp. 2053-2058 ◽  
Author(s):  
SILVINA NOEMI CONTRERAS-CAPETILLO ◽  
HUGO LEONID GALLARDO BLANCO ◽  
RICARDO MARTIN CERDA-FLORES ◽  
JOSÉ LUGO-TRAMPE ◽  
IRIS TORRES-MUÑOZ ◽  
...  
Keyword(s):  
Pilot Study ◽  
Northeastern Mexico
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