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Book part
Publication date: 7 September 2011

Venice Thandi Sulé

The literature on women of color (WOC) faculty is replete with accounts of marginalization (Balderrama, Texeira, & Valdez, 2006; Benjamin, 1997; Garcia, 2005; John, 1997;…

Abstract

The literature on women of color (WOC) faculty is replete with accounts of marginalization (Balderrama, Texeira, & Valdez, 2006; Benjamin, 1997; Garcia, 2005; John, 1997; Li & Beckett, 2006; McKay, 1997; Reyes, 2005). For instance, Balderrama et al. (2006) explains, “I come from a family of survivors, but I never realized it would come to that in academia …Little did I know I was entering one of the bastions of conservative ideology and practices – a far cry from a meritocracy working for the public good” (Balderrama et al., 2006, p. 224). Concomitantly, the higher education literature extols the presence of race and gender diversity because they are associated with elevated learning outcomes and intercultural engagement (Chang, 2002; Gurin, 1999; Milem & Hakuta, 2002). Therein lies the quandary. Given the importance of illuminating the challenges that WOC face within the academy, how then can that discourse be broadened to include empirical and theoretical claims about the relationship between WOC agency and structural transformation? In other words, how can WOC move beyond or within structural constraints to contribute to the teaching and learning environment? Equally important, how does the presence of WOC encourage a diversity conversation beyond student learning outcomes to one that emphasizes social equity? This chapter intends to participate in these emergent conversations in two ways. First, drawing from an empirical study of Black female faculty, I discuss how the participants contributed to their institutions and how those contributions embody and expand on the following diversity narratives: structural access and climate, learning outcomes, intercultural competencies, and meritocracy. Second, I theoretically expound upon the Black female faculty findings to discuss implications for similarly situated WOC. In all, this chapter demonstrates that difference – a woman of color difference – dislodges reactionary strongholds within the academic enterprise.

Details

Women of Color in Higher Education: Changing Directions and New Perspectives
Type: Book
ISBN: 978-1-78052-182-4

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Article
Publication date: 9 January 2009

Benjamin Valdez, Michael Schorr, Margarito Quintero, Monica Carrillo, Roumen Zlatev, Margarita Stoytcheva and Juan de Dios Ocampo

The aim of this work is to study the corrosion and scaling factors, mechanisms and processes affecting the materials, equipment and installations of the Cerro Prieto…

Abstract

Purpose

The aim of this work is to study the corrosion and scaling factors, mechanisms and processes affecting the materials, equipment and installations of the Cerro Prieto geothermal field (GTF).

Design/methodology/approach

The physicochemical characteristics of the geothermal well and fluids were analysed, recorded and related to the corrosion and scaling phenomena.

Findings

The high temperature and salinity of the steam‐brine mixture and the presence of hydrogen sulphide and carbon dioxide impart a severe level of corrosivity.

Originality/value

Corrosion and scaling control assure an efficient production regime, provide for the durability of the GTF engineering materials and equipment and contribute to environmental quality.

Details

Anti-Corrosion Methods and Materials, vol. 56 no. 1
Type: Research Article
ISSN: 0003-5599

Keywords

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Article
Publication date: 25 May 2010

Lopez Badilla Gustavo, Valdez Salas Benjamin, Schorr Wiener Miguel, Rosas Gonzalez Navor, Tiznado Vazquez Hugo and Soto Herrara Gerardo

The purpose of this paper is to study the indoor corrosion of metals used in the electronics industry, as influenced by climate factors.

Abstract

Purpose

The purpose of this paper is to study the indoor corrosion of metals used in the electronics industry, as influenced by climate factors.

Design/methodology/approach

Corrosivity levels inside industrial plants were evaluated to evaluate the deterioration of metals.

Findings

Relative humidity, temperature, and time of wetness are recorded and related to the corrosion process.

Originality/value

Control of climate factors indoors in industrial plants to reduce and control the corrosion process of metals used in the electronics industry.

Details

Anti-Corrosion Methods and Materials, vol. 57 no. 3
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 8 November 2011

Gustavo Lopez, Hugo Tiznado, Gerardo Soto Herrera, Wencel De la Cruz, Benjamin Valdez, Miguel Schorr and Zlatev Roumen

The electronics industry has grown over the past 50 years, mostly in developed countries, contributing to their economic progress. Particularly in the Baja California…

Abstract

Purpose

The electronics industry has grown over the past 50 years, mostly in developed countries, contributing to their economic progress. Particularly in the Baja California State located in the northwest of Mexico, these companies have prospered in the industrial parks of Mexicali considered as an arid zone and Ensenada, a port and city on the Pacific Ocean considered as a marine region. In both environments, during winter and summer, the climate impacts on indoor conditions, affecting humidity and temperature, and generating corrosion which decreases the yields of the electronic devices and industrial machines. The purpose of this paper is to investigate the effects of corrosion on electronic devices in these arid and marine environments.

Design/methodology/approach

The paper determines the corrosivity levels inside industrial plants of desertic and coast regions in Mexico, to evaluate the deterioration of electronic metals.

Findings

Relative humidity, temperature, time of wetness, are recorded and related to the corrosion process in arid and marine environments.

Research limitations/implications

Some missing information about air pollution in Ensenada from some Environmental Monitoring Stations was a limitation, and the need to use complex atmospheric techniques.

Originality/value

The paper shows that it is very important to control metallic corrosion generated by climate factors and air pollution in indoor industrial plants: the corrosion of electronic devices and equipments depletes their yield and can lead to loss‐making failures.

Details

Anti-Corrosion Methods and Materials, vol. 58 no. 6
Type: Research Article
ISSN: 0003-5599

Keywords

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Article
Publication date: 1 October 2004

B. Mónica Carrillo, S. Benjamín Valdez, Lucien Vevela, L. Tezozomoc Pérez, O. Lidia Vargas and W. Michael Schorr

Microbiologically induced corrosion of copper intrauterine devices “TCu380A” and “Nova T” by Enterobacter sp. in a synthetic intrauterine medium was investigated. The…

Abstract

Microbiologically induced corrosion of copper intrauterine devices “TCu380A” and “Nova T” by Enterobacter sp. in a synthetic intrauterine medium was investigated. The corrosion behaviour was evaluated applying cyclic voltammetry and Tafel Polarization. The surface morphology was determined using scanning electron microscopy, the corrosion products were analyzed using energy dispersive X‐rays and the biofilm composition was examined by Fourier transform infrared spectroscopy with an attenuated total reflectance device.

Details

Anti-Corrosion Methods and Materials, vol. 51 no. 5
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 April 2003

S. Benjamín Valdez, G. Navor Rosas, B. Mónica Carrillo, L. Tezozomoc Pérez, Tetsuya Ogura, G. Celia Beltrán, J. Miguel and G. Beltrán

A corrosion study of the intra‐uterine device, “TCu 380 A”, was made using cyclic voltammetry (CV), scanning electron microscopy (SEM) and optical microscopy (OM). Blood…

Abstract

A corrosion study of the intra‐uterine device, “TCu 380 A”, was made using cyclic voltammetry (CV), scanning electron microscopy (SEM) and optical microscopy (OM). Blood plasma, whole blood and artificial uterine fluid were used as corrosive media in order to establish a comparative scheme of the corrosion behaviour of copper in the device. In summary, the results obtained were not only similar to work reported previously, but also provided complementary data for a better understanding of the corrosion problem.

Details

Anti-Corrosion Methods and Materials, vol. 50 no. 2
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 2 March 2015

Mariela Rendón Belmonte, Miguel Martínez Madrid, José Trinidad Pérez-Quiroz, Benjamín Valdez Salas, Erick A. Juarez-Arellano and Miguel Schorr

The purpose of this paper was to characterize the surface of steel reinforcement of concrete under cathodic protection (CP), submerged in seawater, to understand the…

Abstract

Purpose

The purpose of this paper was to characterize the surface of steel reinforcement of concrete under cathodic protection (CP), submerged in seawater, to understand the surface changes due to the application of CP and their consequences on cathodic current requirements.

Design/methodology/approach

Reinforced concrete specimens with applied CP were immersed in natural seawater. The experimental methodology included monitoring of corrosion potential (Ecorr); measurement of galvanic current (Igalv), protection potential (Eprotection) and the depolarization potential of steel during the time of exposure; and electrochemical impedance spectroscopy (EIS). The chemical composition of the steel surface was assessed using X-ray diffraction (XRD).

Findings

The application of CP leads to the formation of a deposit on the steel surface that according to XRD results, Pourbaix diagram and physical characteristics, is a protective oxide: magnetite (Fe3O4). This oxide causes a decrease in the corrosion rate and requires application of the protection current. It was found that the surface remained protected even after eight days when the CP system was interrupted.

Research limitations/implications

It is necessary to carry out analysis of the chemical composition of deposits formed on the steel surface, perhaps using X-ray photoelectron spectroscopy, Mössbauer, to verify the presence of the magnetite.

Practical implications

Determination of the main cause of the decrease in current required for protection and deposit formation conditions will enable the design of a CP system to be optimized and economized. At present, the CP design considers only a constant current value for the duration of the protection time.

Originality/value

CP is a technique that has proven effective for the protection of metal structures. However, little attention has been devoted to the surface changes that occur under applied CP and their impact on the electrochemical behavior of the system. This paper describes the phenomena produced at the metal surface and determines kinetic parameters and their consequences on the CP behavior.

Details

Anti-Corrosion Methods and Materials, vol. 62 no. 2
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 17 May 2013

Mariela Rendón Belmonte, José Trinidad Pérez Quiroz, Benjamín Valdez Salas, Miguel Martínez Madrid, Andrés Torres Acosta, Jesús Porcayo Calderón and Miguel Schorr Wiener

The purpose of this paper is to characterize the surface of steel under cathodic protection while submerged in seawater, to understand the mechanism that controls the…

Abstract

Purpose

The purpose of this paper is to characterize the surface of steel under cathodic protection while submerged in seawater, to understand the mechanism that controls the operation of the protection system.

Design/methodology/approach

Steel rods were immersed in seawater and NaCl solution with applied cathodic protection. The experimental methodology included monitoring of corrosion potential (Ecorr), galvanic current (Igalv) protection potential (Eprotection) and the depolarization potential of steel during the time of exposure. In addition, the chemical composition of the steel surface was assessed using a Scanning Electron Microscope (SEM).

Findings

In this research it was determined that the effectiveness of the CP system was mainly attributable to the formation of an iron oxide film on the steel surface.

Research limitations/implications

It is necessary to carry out analysis of the chemical composition of deposits formed on the steel surface, perhaps using X‐ray diffraction (XRD), to verify the presence of a protective oxide.

Practical implications

Deposits on the steel surface have the beneficial effect of reducing the current required for efficient protection. Deposit formation therefore is of economic interest, as it decreases the cost of protection.

Originality/value

A unique feature of cathodic protection in seawater is the formation of calcareous deposits on metal surfaces. Advantageous aspects of these deposits, such as decrease in cathodic current requirement, have been investigated by various authors from various viewpoints. However, very little attention has been paid to the impact of any iron corrosion product films; the present paper contributes useful understanding and explains the importance of the mechanism that controls the operation of the protection system.

Details

Anti-Corrosion Methods and Materials, vol. 60 no. 3
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 21 April 2020

P.D. Shere, Prashant Sahni, A.N. Devkatte and V.N. Pawar

Noodles are good vehicles for the enrichment and can be enriched with vegetable purees. However, this enrichment can alter quality attributes of noodles with resultant…

Abstract

Purpose

Noodles are good vehicles for the enrichment and can be enriched with vegetable purees. However, this enrichment can alter quality attributes of noodles with resultant effect on its sensorial attributes. The purpose of this paper is to study the effect of addition of different hydrocolloids on the microstructural and quality characteristics of instant noodles enriched with spinach puree.

Design/methodology/approach

Preliminary trials were carried out for the standardization level of addition of spinach puree in noodle formulation. Carboxymethyl cellulose (CMC) and guar gum were added in the noodle formulation at 0.25, 0.5 and 0.75 per cent level of incorporation. The effect of addition of hydrocolloids was evaluated on the cooking quality, sensory attributes, texture characteristics and microstructure of the noodles.

Findings

The most acceptable ratio for the formulation of the noodles was found to be 40 g spinach puree per 100 g refined wheat flour. Addition of hydrocolloids resulted in the increase in the cooking time, cooking weight, water absorption and swelling index. Significant decrease in the cooking loss was observed with the increase in the level of CMC (from 7.4 to 6.1 per cent) and guar gum (from 7.4 to 7 per cent). Addition of CMC and guar gum up to 0.5 per cent and 0.25 per cent, respectively, improved the texture, overall acceptability and mouthfeel attributing to complimentary interaction between starch, fibre and hydrocolloids observed at microstructural level; however, further increase in the level of incorporation resulted in stickiness and sliminess in the noodle strands.

Practical implications

It is found that 0.5 per cent CMC and 0.25 per cent guar gum can be used for the enhancement of quality characteristics of the spinach puree enriched noodles.

Originality/value

Intervention of incorporation of hydrocolloids in spinach puree–enriched instant noodles delivers healthy and nutritious product without compromising on its sensorial and quality attributes.

Details

Nutrition & Food Science , vol. 50 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

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Article
Publication date: 1 February 2002

Heather Höpfl

This is a paper about the cinematic as spectacle and the construction of the sublime. It is concerned with gendered constructions of desire and construes the object of…

Abstract

This is a paper about the cinematic as spectacle and the construction of the sublime. It is concerned with gendered constructions of desire and construes the object of desire in this case as a sublime object. At the same time, the paper is about decadence and falling, falling away. Therefore, this piece of writing attempts to deal with some thoughts on the relationship between decadence and mortification. So this paper is also about distance and about movement, about kinema (Greek movement) and the distance that is described by falling from the constructed sublime and its associated melancholy. These ideas are explored via an examination of one of Alfred Hitchcock’s most powerful films, Vertigo (1958), and a notion of the tragic sublime. Taken together, the concept of the sublime and the narrative of the film provide insights into the melancholy of commodified representations in the obsessive‐compulsive pursuit of organisational idealisation.

Details

Journal of Organizational Change Management, vol. 15 no. 1
Type: Research Article
ISSN: 0953-4814

Keywords

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