scholarly journals Tilapia Culture in Geothermal Waters: A Case of Study in a Semi-Arid Region in North-Central Mexico

2015 ◽  
Vol 8 (1) ◽  
pp. 1-6
Author(s):  
Jose Luis Arredondo-Figueroa ◽  
Jorge Ramon Rocha-Ruiz ◽  
Jose de Jesus Luna-Ruiz ◽  
Jesus T. Ponce-Palafox
2019 ◽  
Vol 11 (10) ◽  
pp. 2750
Author(s):  
Benjamín Figueroa-Sandoval ◽  
Martín A. Coronado-Minjarez ◽  
Eduviges J. García-Herrera ◽  
Artemio Ramírez-López ◽  
Dora M. Sangerman-Jarquín ◽  
...  

Drylands (arid and semi-arid regions) are important regions in the world; they have been disregarded and considered poor undeveloped regions due to their ecological limitations. Farmers in these regions tend towards diversification of production systems in order to achieve livelihood security, and this phenomenon has not been extensively studied. The objective of this study was to create a typology of the production systems present in the Mexican north central drylands, using variables related to production, socioeconomics, and social capital. 1044 interviews were conducted in the semi-arid region of north central Mexico. Analysis of the data allowed for the observation of nine types of production systems distributed in three groups: Subsistence, commercial, and off-farm income systems. The differences observed within these systems are due to generational gaps, gender differences, market orientation, and social capital. It can be concluded that the diversification of the dryland production systems allows for an understanding of why generic public policies have failed to mitigate poverty in these regions. The implications of the study refer to the reconfiguration of Mexican policies for the development of the drylands.


2009 ◽  
Vol 121 (2) ◽  
pp. 384-391 ◽  
Author(s):  
A. M. Contreras-González ◽  
F. A. Rivera-Ortíz ◽  
C. Soberanes-González ◽  
A. Valiente-Banuet ◽  
M. C. Arizmendi

2004 ◽  
Vol 59 (4) ◽  
pp. 753-769 ◽  
Author(s):  
W. Ritter Ortı́z ◽  
E. Jáuregui Ostos ◽  
S. Guzmán Ruı́z ◽  
A. Estrada Betancourt ◽  
H. Muñoz Nava ◽  
...  

Author(s):  
Takoua Ben Hlel ◽  
Feten Belhadj ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
Ayşe Şahin Yağlıoğlu ◽  
...  

Background:: Luffa cylindrica is a plant that is widely distributed in Africa and Asia and it can be grown in regions with tropical or subtropical climates. Few patents dealt with Loofah biological properties, including some functional foods formulated from its leaves. Objective:: This study aimed to structurally and functionally characterize the bioactive compounds of L. cylindrica leaves grown in two different environments. Methods:: The extracts of L. cylindrica leaves collected from two Tunisian locations: Essouasi (LE), a semi-arid region and Medenine (LM) an arid region, were investigated for their phenolic compounds and fatty acids using HPLC/TOF-MS and GCMS techniques respectively. Furthermore, the antioxidant capacity was evaluated with DPPH, Chelating effect, Hydroxyl radical and Superoxide anion scavenging activities while the anticancer activity against HeLa cell lines was assessed using xCELLigence real time cell analyzer and lactate dehydrogenase cytotoxicity assay. Results:: The antiproliferative capacity of both extracts was time and dose-dependent with LE presenting the lowest HeLa cell index (CI = 0.035 ± 0.018, 250 μg/ml). LE also showed the best cytotoxic capacity (56.49 ± 0.8%) and antioxidant potential (IC50 = 54.41 ± 1.12 μg/ml for DPPH and 12.12 ± 0.07 μg/ml for chelating effet). 14 phenolic compounds were detected in LE with ferulic acid being the major compound (5128.5 ± 4.09 μg Phenols/g) while LM had only 6 phenolics. GCMS analysis showed the presence of omega-3 fatty acids in LE. Conclusions:: Our findings suggest that L. cylindrica leaves, especially when collected from semi-arid regions, are promising for formulating nutraceuticals of interest.


2021 ◽  
Vol 24 ◽  
pp. e00367
Author(s):  
Patrick Filippi ◽  
Stephen R. Cattle ◽  
Matthew J. Pringle ◽  
Thomas F.A. Bishop

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