scholarly journals Transboundary Aquifers between Baja California, Sonora and Chihuahua, Mexico, and California, Arizona and New Mexico, United States: Identification and Categorization

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2878
Author(s):  
Rosario Sanchez ◽  
Laura Rodriguez
Keyword(s):  
United States ◽  
Water Quality ◽  
New Mexico ◽  
Baja California ◽  
The United States ◽  
Border Region ◽  
Aquifer Potential ◽  
Transboundary Aquifers ◽  
The U.S

In 2016, research suggested there might be up to 36 transboundary aquifers located along the border between Mexico and the U.S. The main contribution of this study was to put together the available segments already existent in the literature without considering the validity of the criteria used to define the boundaries of those segments. In 2018, updated research reported 33 hydrogeological units (HGUs) crossing the boundaries between Mexico and Texas. This later analysis included the homogenization of geological nomenclatures, standardization of geological and hydrogeological criteria, using a specific methodology to correlate, identify, and delineate each HGU. The purpose of this paper is to use this latter methodology and expand the same analysis to include the transboundary aquifers between Baja California/California, Sonora/Arizona, and Chihuahua/New Mexico. Results of this study indicate that a total of 39 HGUs have been identified in this region which accounts for an approximate shareable land of 135,000 km2 where both countries share half of the area. From the total shareable area, around 40% reports good to moderate aquifer potential and water quality, of which 65% is in the U.S. and 35% on the Mexico side. Border-wide, the total number of HGUs in the border region between Mexico and the United States is 72, covering an approximate area of 315,000 km2 (180,000 km2 on the U.S. side and 135,000 km2 on the Mexico side). The total area that reports good to moderate aquifer potential as well as good to regular water quality ranges between 50 and 55% (of which approximately 60% is in the U.S. and the rest in Mexico).

Concrete Biodeterioration in the U.S.-Mexico Border Region

2010 ◽  
Vol 1278 ◽  
Author(s):  
L. E. Rendon ◽  
M. E. Lara ◽  
S. K. Rendon ◽  
M. Rendon ◽  
X. Li
Keyword(s):  
United States ◽  
Arid Region ◽  
Mexican American ◽  
Groundwater Resources ◽  
The United States ◽  
Border Region ◽  
Hardened Concrete ◽  
Mexico Border ◽  
The U.S ◽  
Sewage Systems

AbstractConcrete biodeterioration is defined as the damage that the products of microorganism metabolism, in particular sulfuric acid, do to hardened concrete. In Canada and in the northern part of the United States, sewer failures from concrete biodeterioration are almost unknown. In the southern part of the United States and in Mexico, however, it is a serious and expensive problem in sewage collection systems, which rapidly deteriorate. Also, leaking sewage systems result in the loss of groundwater resources particularly important in this arid region. Almost every city in the Mexican-American border region, who's combined population is more than 15 million people, faces this problem. The U.S. cities have made some provision to face these infrastructure problems, but the Mexican cities have made less effort. We recommend here the Mexican norm (NMX-C-414-ONNCCE-2004) [1] to be reviewed, or at least that a warning be issued as a key measure to avoid concrete biodeterioration.

Riding Waves on the Mexico–United States Border: Beaches, Local Surfers and Cross-Border Processes

2020 ◽  
pp. 019372352092860
Author(s):  
Jesús Estrada Milán ◽  
Luis Escala Rabadán
Keyword(s):  
United States ◽  
Baja California ◽  
The United States ◽  
Border Region ◽  
Territorial Disputes ◽  
Cultural Relations ◽  
Cross Border ◽  
The Social ◽  
Transnational Cooperation ◽  
Political Actions

This article examines the social and cultural relations that take place in surfing communities on the Mexican side of the border with the United States. Through ethnographic work with surfers from Northern Baja California, we identified different cross-border processes encouraged by this lifestyle sport: the formation of binational surfing communities, commodity circulation, localism, territorial disputes, and shared environmental problems. We point out that surfing on the border creates a system of affinities and rivalries based on the identity and nationalism, marked by the inequality and asymmetry between these two countries. This article also addresses the transnational cooperation and political actions undertaken to protect the oceans and beaches enjoyed by surfers in this border region.

scholarly journals Hydrogeochemical Studies of Groundwater In Industrial And Agricultural Area Of Gokul Shirgaon MIDC Region, Kolhapur, Maharashtra, India

2021 ◽  
Vol 9 (9) ◽  
pp. 228-236
Author(s):  
Tejashri V. Patil
Keyword(s):  
United States ◽  
Water Quality ◽  
Drinking Water ◽  
Natural Resources ◽  
Quality Index ◽  
The United States ◽  
Biological Parameters ◽  
Total Water ◽  
Physical Chemical

Abstract: Groundwater is one of the earth’s most widely distributed and most important natural resources. Groundwater exists, wherever water penetrates beneath the surface. The rocks beneath the surface are permeable enough to transmit water, and at places, the rate of infiltration is so sufficient that the rocks are saturated to an appreciable thickness. This water may be fresh or brackish in quality. As the fresh water constitutes very little quantity of the total water available, we must think as to how best we can exploit it, and utilize it. With the growth of population, today in many of the places water has become a critical source. In many places it is dwindling both in quality and quantity, creating problems for the communities involved. Water Quality Index indicates the quality of drinking water by assessing physical, chemical and biological parameters of water. India had the most studies, with 177 articles, followed by China, Brazil and the United States. This four countries together published 57% of studies on WQI. Groundwater quality implies the level of concentration of different constituents of water which is ultimately described if it is suitable or not for drinking or other purpose such as irrigation. There are mainly three types of constituents or parameters for describing quality of groundwater as physiological, chemical and biological parameters. These parameters are described below: EC ,TDS, K, Na, Ca ,Mg ,TH, Co3, HCO3, Cl, SO4 ,and also we determine some trace element such as Copper (Cu) ,Lead (Pb), Manganese (Mn) ,Nickel (Ni) ,Iron (Fe), Zinc (Zn). Keywords: Gokul Shirgaon , Hydrogeochemical , GroundWater

scholarly journals Governance in Imperial County and Mexicali at the U.S.–Mexico Border during the COVID-19 Pandemic

2020 ◽  
Vol 2 (1) ◽  
pp. 38-41
Author(s):  
Kimberly Collins
Keyword(s):  
Public Management ◽  
The United States ◽  
Border Region ◽  
Imperial Valley ◽  
Mexico Border ◽  
United States Mexico ◽  
Border Population ◽  
The U.S

The COVID-19 pandemic has greatly impacted the lives of those living in the United States–Mexico border. From the Imperial Valley–Mexicali region, along the California– Baja California border, we find two interesting cases in public management that were impacted by the border population—medical care and informal importation of consumer goods. A lack of federal policy and guidance to improve the quality of life for people in the region leads us to rethink the role of governments and governance in the border region. 

The Representation of the U.S.-Mexico Border in Television News: Textual Analysis on Bodies and Security Enforcement

2019 ◽  
Vol 15 (29) ◽  
Author(s):  
David Gonzalez Hernandez
Keyword(s):  
United States ◽  
Textual Analysis ◽  
Television News ◽  
The United States ◽  
Border Region ◽  
Local Network ◽  
News Reports ◽  
Mexico Border ◽  
United States Mexico ◽  
The U.S

This article analyzes how television news has enhanced the role of representation of the United States-Mexico border in themes such as immigration, theme represented in “spectacular” ways related to “warfare”. Using textual analysis on TV reports, my aim is to show how local television network news in the United States (NBC) and Mexico (Televisa) construct the representation of the U.S./Mexico border through a particular conflicting vision to account for border enforcements and interventions on both sides and with similar visual strategies. The analysis centers on actual “visual text” or television news reports, which tries to demonstrates how assumptions guide the activity of local network coverage, and how, at the same time, limits what is reported in news. This consequently contributes to the perpetuation of a representation related to ¨crisis¨ in the border region.

scholarly journals The Hard Path of Becoming a Visiting Scholar in the U.S.

2020 ◽  
Vol 4 (1) ◽  
pp. 85-93
Author(s):  
Margherita Daho'
Keyword(s):  
United States ◽  
International Students ◽  
The United States ◽  
Colleges And Universities ◽  
Quality Of Education ◽  
Considerable Time ◽  
The U.S ◽  
Visiting Scholars

With globalization and the continual growth of studies abroad, many Ph.D. students apply to move to other countries for an exchange experience. Many students select the United States as their preferred destination, attracted by the perceived better quality of education. The United States also tries to attract international students to its colleges and universities. However, becoming a visiting scholar is very hard and takes considerable time. Applications and bureaucracy are cumbersome and major support is required, especially for international students. This article is a reflection on my experience planning an exchange experience in the United States during my Ph.D. I also offer recommendations for improving the experiences of international visiting scholars.

scholarly journals 668 The ASHS/People-To-People Mission to China

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 513E-514
Author(s):  
Donald N. Maynard
Keyword(s):  
United States ◽  
Hong Kong ◽  
Los Angeles ◽  
Significant Contribution ◽  
The United States ◽  
Cultural Activities ◽  
The People ◽  
Horticultural Products ◽  
The U.S

The Citizen Ambassador Program was initiated in 1956 when President Dwight D. Eisenhower founded “People to People.” His vast perspective as a military and governmental leader led him to believe that individual citizens reaching out in friendship to the people of other nations could make a significant contribution to world understanding. From 14–28 Aug. 1998, ASHS took part in the “People-to People Mission to China.” Our delegation was composed of six ASHS Members and two guests. Delegates were from Canada and Brazil and the United States. After meeting in Los Angeles for a final briefing, the delegation departed for Hong Kong, where we immediately boarded a flight to Beijing. Our China experience began in Beijing, then on to Hangzhou, Shanghai, Guangzhou, and Hong Kong. All of these locations are in the densely populated eastern portion of China. (China has approximately the same area as the United States, but it has 1.25 billion people compared to only 270 million in the U.S.) Our time at each location was about equally divided between professional and cultural activities. Our Chinese horticultural colleagues were enthusiastic and well-trained. As in the United States, the quality of the facilities and the equipment varied somewhat among locations. Operating funds, never sufficient for research and maintenance of facilities, commonly were supplemented by sale of horticultural products.

Know Your Enemy: How Unauthorized Repatriated Migrants Learn About and Perceive Anti-Immigrant Mobilization in the United States

2015 ◽  
Vol 12 (2) ◽  
pp. 137-151 ◽  
Author(s):  
Matthew Ward ◽  
Daniel E Martinez
Keyword(s):  
United States ◽  
The United States ◽  
Border Crossing ◽  
Knowledge Networks ◽  
Future Research ◽  
Related Information ◽  
Mexico Border ◽  
Original Survey ◽  
The U.S

Recently scholars have turned their attention towards a growing anti-immigrant movement in the United States.  In particular, residents called ‘minutemen’ have garnered attention for their vigilante patrols of the U.S.-Mexico border. Yet, there remains an absence of rigorously collected data from the unauthorized migrants they target.  Filling this void, we draw on original survey data from wave 1 of the Migrant Border Crossing Study (MBCS) and address three questions: Among unauthorized repatriated migrants who have heard of minutemen, from where do they get their information? What qualities or characteristics do unauthorized repatriated migrants ascribe to minutemen? And, finally, how accurate are these perceptions?  In so doing, we detail the composition of unauthorized repatriated migrants’ knowledge networks and the role these played in diffusing knowledge about minutemen. Additionally, we illuminate disparities in the quality of the minuteman-related information these networks diffuse. We find that respondents relied heavily on media outlets in the United States and Mexico to obtain information about minutemen. Social networks and the crossing experience itself mattered to a much lesser extent. Interestingly, unauthorized repatriated migrants were mixed in their perceptions of exactly who minutemen were, and migrants varied greatly in their ability to accurately identify minutemen. We conclude with implications and directions for future research.

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