Testing as a tool in the effective selection and placement of employees

The day has passed when a company is willing to assign to a job any person that comes into its employment offices. With the labor market easing slightly, competition increasing, and production cost a at an extremely high level, there is a growing pressure on those responsible for employing labor to improve their selection methods. To such persons, testing represents a necessary addition to present employment practices

Development of a numerical solution to the time dependent kinetic equation

A numerical solution was developed for the time dependent Fokker-Planck equation for arbitrary distributions of electrons injected into a magnetized plasma. The code which includes energy loss and pitch angle scattering due to Coulomb collisions and changes in pitch angle due to inhomogeneous magnetic fields was calibrated and tested. The numerical method is versatile so that other scattering or radiation terms can be easily included. Using this code many processes associated with the impulsive phase of solar flares will be investigated

The Impact of Shrimp Farming on Mangrove Ecosystems and Local Livelihoods Along the Pacific Coast of Ecuador

This manuscript examines the expansion of Ecuador’s shrimp aquaculture industry since 1970 and the implications of this expansion on coastal residents’ food security and livelihood options. Shrimp aquaculture expanded from essentially nothing in 1970; to account for 26% of all Ecuadorian private exports by 1998. The rapid expansion of shrimp aquaculture in Ecuador’s estuaries has caused a fundamental shift in livelihoods among those who live and work in the immediate vicinity of the newly created shrimp farms. This research not only details the important land use change that has occurred within Ecuador’s estuaries during the transition from mangrove estuary to shrimp-farmed estuary but also examines the change in the human condition through a series of interviews with residents who are dependent on the estuary. Research findings indicate that, despite massive investment in the shrimp industry of Ecuador and the relative success of the industry in terms of export dollars generated, local livelihood options and economic wellbeing have actually decreased in the aquaculture regions during the aquaculture boom. The pathway from the growth of a giant new export industry to a decrease in local economic opportunity are based on environmental, ecological, and economic alterations that have occurred in the coastal communities of Ecuador during the period of aquaculture expansion

A Study of the Structure of Hair with Special Reference to a Negro Child During Its First Five Years of Growth

Many studies have been made on cross section structure of human head hair. Anthropologist have used color, texture, and form of hair as a basis of racial analysis and classification. Brown 1853 (1) showed that the hair of various races of mankind could be classified into three groups with respect to the shapes of the cross section of the shafts: circular, oval, and elliptical. Pruner-Bey 1863 (2) also studied cross section of hair shafts with respect to curliness, kinkiness, waviness and straightness of the hair of various human races. They found the cross section form of wavy hair to have oval shafts, the cross section form of straight hair to have circular shafts and the cross section form of kinky hair was found to have elliptical shafts. In 1884 Waldeyer (3) made a general but not correlative micrological survey of the hairs of representative beast and man by means of crude photomicrography. This was the first successful attempt to use a method of representing the contour of the cuticular scales and medulla of mamalian hair

The development and application of a test to detect certain habits of the scientific attitude among high school science students

This investigation is concerned with the development and application of a test to detect certain habits of the scientific attitude among high school science students. Preliminary investigation relative to the problem centered around the two following procedures: (1) An attempt to determine and define the scientific attitude and its relation to scientific method. (2) A consideration of the results of previous studies related to the above problem

Predicting September sea ice: Ensemble skill of the SEARCH Sea Ice Outlook 2008-2013

Abstract Since 2008, the Study of Environmental Arctic Change Sea Ice Outlook has solicited predictions of September sea-ice extent from the Arctic research community. Individuals and teams employ a variety of modeling, statistical, and heuristic approaches to make these predictions. Viewed as monthly ensembles each with one or two dozen individual predictions, they display a bimodal pattern of success. In years when observed ice extent is near its trend, the median predictions tend to be accurate. In years when the observed extent is anomalous, the median and most individual predictions are less accurate. Statistical analysis suggests that year-to-year variability, rather than methods, dominate the variation in ensemble prediction success. Furthermore, ensemble predictions do not improve as the season evolves. We consider the role of initial ice, atmosphere and ocean conditions, and summer storms and weather in contributing to the challenge of sea-ice prediction. Key Points Analysis of Sea Ice Outlook contributions 2008-2013 shows bimodal success Years when observations depart from trend are hard to predict despite preconditioning Yearly conditions dominate variations in ensemble prediction success

Predicting September sea ice: Ensemble skill of the SEARCH Sea Ice Outlook 2008–2013

Since 2008, the Study of Environmental Arctic Change Sea Ice Outlook has solicited predictions of September sea-ice extent from the Arctic research community. Individuals and teams employ a variety of modeling, statistical, and heuristic approaches to make these predictions. Viewed as monthly ensembles each with one or two dozen individual predictions, they display a bimodal pattern of success. In years when observed ice extent is near its trend, the median predictions tend to be accurate. In years when the observed extent is anomalous, the median and most individual predictions are less accurate. Statistical analysis suggests that year-to-year variability, rather than methods, dominate the variation in ensemble prediction success. Furthermore, ensemble predictions do not improve as the season evolves. We consider the role of initial ice, atmosphere and ocean conditions, and summer storms and weather in contributing to the challenge of sea-ice prediction