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The purpose of this paper is to show how the pattern of trade relations between the USA and African countries is gradually shifting toward reciprocity. It therefore demonstrates that the African Growth and Opportunity Act (AGOA) was conceived to be a building block toward future bilateral trade agreements.

This paper adopts a historical approach to the USA’s policy toward Africa in general and in trade matters in particular. It critically reviews the chronology of US involvement in the continent.

Although it was designed as a preferential trade arrangement, AGOA was intended to evolve into reciprocal trade agreements. This is what the USA started doing even prior to the entry into force of the AGOA, by entering into Trade and Investment Framework Agreements with individual countries or blocs. It also transpires that the deployment comes as a response to the European Union which is already engaged in the redefinition of its own trade relations with Africa since 2004.

The paper is important in many respects. Not only it is a study of the US practice as preference-granting country, but it is also interested in the typology of trade agreements concluded by the USA in other regions of the world. This is important to indicate and analyze the types of provisions African countries should be expected to face when the time of entering into reciprocal binding trade treaties arrives.

On average, only 10 percent workers at construction sites are women. This percentage, however, is not due to a lack of interest or capacity, but to discrimination against women, sexual harassment and work safety. The purpose of this paper is to identify the main issues and current difficulties of women workers at construction sites, as well as good practices that might provide a better environment for them.

Interviews were carried out with workers and engineers who work/have worked at construction sites, to gather material for a discussion about the gender gap in this environment. The interviews were structured and analyzed around the following topics: acceptance, well-being, installations, gender perception and good practices.

The hiring of women usually occurs at the end of the construction period, which brings up the issue of sexual division of labor. Effects of the glass ceiling and the leaky pipeline phenomena were evident, as well as harassment, discrimination and sexism.

Studies about women in engineering have been become relative common, but studies about female workers on construction sites are still scarce. The women interviewed see themselves as warriors, symbolizing the gain of space within the construction sector and in society. It is hoped that the results can contribute to raising awareness about the benefits of gender mainstreaming at construction sites and to promote the health and well-being of women in these environments.

The paper describes the derivation and application of a range of numerical algorithms for implementing the Mohr—Coulomb yield criterion in a non‐linear finite element computer program. Emphasis is placed on the difficulties associated with the corners of the yield surface. In contrast to the more conventional forward‐Euler procedures, a backward‐Euler integration technique is adopted. A range of methods, including a ‘consistent approach’ are used to derive the tangent modular matrix. Numerical experiments are presented which involve solution algorithms including the modified and full Newton—Raphson procedures, ‘line‐searches’ and the arc‐length method. It is shown that the introduction of efficient integration and tangency algorithms can lead to very substantial improvements in the convergence characteristics.

“First principles” of international business (IB) thinking should be applied systematically when assessing the functioning of internationally operating firms. The most important first principle is that entrepreneurially oriented firms seek to create, deliver and capture economic value through cross-border linkages. Such linkages invariably require complementary resources from a variety of parties with idiosyncratic vulnerabilities to be meshed. Starting from first principles allows bringing to light evidence-based insight. For instance, most companies are not global and even the world’s largest firms rarely change the location of key strategic functions. International new ventures (INVs), emerging economy multinational enterprises (MNEs) and family firms face unique vulnerabilities but also command resources that can be used to create value across borders. The quest for “optimal” international diversification appears to be a futile academic exercise, and in emerging economies with institutional voids, relational networks – and more broadly, informal institutions – are unlikely to function as scalable substitutes for formal institutions. In global value chains (GVCs), many lead firms and their partners have been able to craft governance mechanisms that reduce bounded rationality and bounded reliability challenges, and it is also critical for them to use governance as a tool to create entrepreneurial space. Finally, many of the world’s largest companies have been on successful trajectories toward reducing their climate change footprint for a few decades. But these firm-specific trajectories are fraught with challenges and cannot just be imposed via unilateral, macro-level targets decided upon by individuals and institutions lacking a clear understanding of innovation and capital expenditure processes in business.

MISS ANNE SHAW's presence on the platform at the annual general meeting of the Management Consultants Association was a solid assurance that work study still lies within its scope. The initial impression was weakened, however, when the chairman, Mr. D. J. Nicolson, mentioned that the bulk of consultancy work was no longer concerned with work study. Instead, it gave more than half its attention to policymaking and the broad aspects of organising financial, manufacturing and marketing resources.

Consideration of the fast‐growing number of food hygiene prosecutions up and down the country, almost all of them of a most serious nature, shows that it is the food preparing room, the kitchen, which is indeed the hub of the matter. Most of the charges result from its condition and the practices carried on within its walls, all‐too‐often enclosing a cramped space, ill‐equipped and difficult to keep clean. Its state in many prosecutions clearly contrasts badly with the soft lights and alluring elegance of the dining rooms in hotels and catering establishments. Yet, who would say that the kitchen is not the most important room in the home, in the hotel and every food‐preparing place? It has been so from time immemorial. House design has suffered severely with the need to cut building costs and the kitchen has suffered most; in small houses, it seems little more than a cupboard, a box‐room, an alcove. Is it surprising, then, that age‐old kitchen arts have degenerated? In the farmhouse, the country homes of the affluent, the “downstairs” of the town house, the kitchen was among the largest rooms in the house, as befitted all the activity that went on there. In the USA, the modern, comfortable home even of relatively humble folk the kitchen is phenomenally large; room for everything and everyone.

The construction industry has traditionally been a male-dominated economic sector. Barely 10% of managers are women. On the other hand, this sector is considered an engine of the economy. For these reasons, it is important to examine the influence of women CEOs on financial variables of firms in the construction industry.

The empirical study is carried out using a sample from the Iberian Balance Sheet Analysis System record (“Sistema de Análisis de Balances Ibérico”, SABI). The sample includes 8,492 Spanish companies from the construction sector. The methodology employed is a three-stage least squares (3SLS) analysis. This methodology controls for the endogeneity of explanatory variables. It is employed in accordance with the peculiar characteristics of the sample, which includes data for only one year.

The results show that firms with a woman CEO have a lower level of debt, whatever the terms of the maturity of the debt are. In contrast to most previous evidence, firms managed by women are found to be less profitable.

The paper gives evidence of the influence of the CEO's gender on the performance (return and risk) of a firm. It provides original empirical evidence for the male-dominated construction sector. An extensive search identified no literature in which the researchers had focused on the construction industry.

Broad-spectrum cephalosporin resistance is rapidly increasing in Escherichia coli, representing a food safety problem. The purpose of this paper is to characterize eight extended-spectrum-ß-lactamase (ESBL) and acquired AmpC ß-lactamase-producing E. coli isolates and virotypes associated, obtained from chicken and pork food samples in Puebla, Mexico.

Samples (36 from chicken and 10 from pork) were cultured on Levine agar plates supplemented with cefotaxime (2 mg/L) for isolation of cefotaxime-resistant (CTXR) E. coli. CTXR-E. coli isolates were detected in 33 of 46 samples (72 percent), and one isolate/sample was characterized (28 from chicken and 5 from pork), for ESBL production, phylogenetic group, sequence typing, resistance and virulence genes by PCR and sequencing.

Results showed 16 ESBL-E. coli (35 percent) (12/16 belonging to phylogroup B1) and 8 CMY-2-E. coli (17 percent). ESBL detected were as follows (number of isolates): CTX-M-2 (8); CTX-M-1 (2); CTX-M-15 (1); SHV-2a (4) and TEM-52c (1). In total, 20 different sequence types (STs) were identified among the ESBL- or CMY-2-producing E. coli strains, which included four new ones. The CTX-M-15 β-lactamase was detected in one E. coli ST617-ST10 Cplx-B1 strain that also carried ibeA gene. One CMY-2-positive strain of lineage ST224-B2 was detected and it carried the qnrA1 gene.

In this study, a ST131-based virotyping scheme for strains from food of animal origin was established since this kind of strains constitutes an important vehicle of virulent ESBL- and CMY-2-producing E. coli isolates, which could be transmitted to humans by direct contact or through the food chain.