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The majority of the people who make up the United States' seasonal agricultural workforce are nonimmigrant Mexican citizens. Immigration policies such as the Immigration Reform and Control Act (IRCA) and the H-2A agricultural guest worker program were meant to encourage growers to employ legal labor workforces. A study of the laws and practices that eventually resulted in the H-2A program shows how and why the demographics are predominantly Mexican. In addition, such study is revealing as to why the US enacted the H-2A program-including definitional details of the program itself. However, does...

This study examined the perceptions of officers with colleagues who perpetrate acts of domestic violence. This was a qualitative research design from a phenomenological perspective. The data was gathered by the use of face-to-face interviews using open-ended questions. The data was analyzed by the use of bracketing, horizonalization, clusters of meanings, textural and structural descriptions, and the invariant structure of the phenomena described by the study participants. Upon completion of the 30 interviews, the audio tapes were all transcribed, and loaded in to Atlas Ti for the purpose of c...

The global environmental crises motivated many companies to investigate and develop the concept of environmentally sustainable business. The objective of traditional business strategy is to maximize profit but, with real imagination and a fresh approach to business strategies, environmental sustainability can actually increase both annual profit and long term shareholder value. This article analyzes several examples of such strategies, not only for companies operating in a capitalist economy, but also for companies based in countries that retain a traditional economy. These strategies are ill...

The collapse of Enron, WorldCom, and other large corporations in 2001 and 2002 motivated Congress to pass the Sarbanes-Oxley Act of 2002 (SOX). The purpose of this legislation was to restore investor confidence in the United States stock markets, and to prevent and detect fraud in financial statements as well. This dissertation examines the effectiveness of SOX for the latter purpose of preventing and detecting fraud, using statistical enforcement data presented by the Securities and Exchange Commission, and financial statement restatement numbers published by the Huron Corporation. The tw...

The diversity of stellar death is revealed in the energy, velocity and geometry of the explosion debris ("ejecta''). Using multi-wavelength observations of gamma-ray burst (GRB) afterglows I show that GRBs, arising from the death of massive stars, are marked by relativistic, collimated ejecta ("jets'') with a wide range of opening angles. I further show that the jet opening angles are strongly correlated with the isotropic-equivalent kinetic energies, such that the true relativistic energy of GRBs is nearly standard, with a value of few times 10^51 erg. A geometry-independent analysis whic...

There is no doubt that electronic marketing has contributed positively in the life of modern societies, mainly the consuming societies. It allowed purchasing of materials cheaply without any limit, and without any restrictions. It also gave the chance to make a free selection and comparison between the prices of goods at the electronic department stores throughout the Internet. All such facilities are given to the consumers in a very short time without causing them to leave their office or home. In addition, the Electronic Marketing has exterminated the monopoly of goods and materials, all suc...

(Complete work in Spanish) This study proposes a new genre: La novela de las transnacionales, which is derived from regrouping several types of novels within the category of the Novela Social of “tendencia antiimperialista”. The key element of this work is to identify the basic characteristics of form and content that allow the definition of this new classification. Acknowledging the fact that there are a great number of novels that address -to varying degrees- the topic of the transnational companies (TNCs), this work is based on three representative novels that comprise the ...

This research is dedicated to two main problems in finding shortest paths in the graphs. The first problem is to find shortest paths from an origin to all other vertices in non-negatively weighted graph. The second problem is the same, except it is allowed that some edges are negative. This is a more difficult problem that can be solved by relatively complicated algorithms. We attack the first problem by introducing a new data structure - Relaxed Heaps that implements efficiently two main operations critical for the improvement of Dijkstra's shortest path algorithm. R²heaps with suspended re...

We examine the census of star-forming galaxies and their extinction properties at redshift z~2, when a large fraction of the stellar mass in the universe formed. We find a good agreement between the X-ray, radio, and de-reddened UV estimates of the average star formation rate (SFR) for our sample of z~2 galaxies of ~50 Msun/yr, indicating that the locally calibrated SFR relations appear to be statistically valid from redshifts 1.5<z<3.0. Spitzer MIPS data are used to assess the extinction properties of individual star-forming galaxies, and we find that the rest-frame UV slope of most...

Neutron stars are invaluable tools for exploring stellar death, the physics of ultra-dense matter, and the effects of extremely strong magnetic fields. The observed population of neutron stars is dominated by the >1000 radio pulsars, but there are distinct sub-populations that, while fewer in number, can have significant impact on our understanding of the issues mentioned above. These populations are the nearby, isolated neutron stars discovered by ROSAT, and the central compact objects in supernova remnants. The studies of both of these populations have been greatly accelera...