Responsible Marine Wildlife Viewing

Marine wildlife viewing is good for Alaska's economy, and good for the participants' souls. But is it good for the animals? The answer is yes, if boaters and tide-poolers use care when near the animals. This publication describes laws and guidelines for observing whales, sea lions, walruses, sea otters, coastal birds, and other animals. Charter operators and nature tour leaders will find it a concise source of information that ensures the comfort of marine mammals and other wildlife as customers get thrilling views.Ye

CHANGING FISHERIES OF THE RUSSIAN FAR EAST

Resource /Energy Economics and Policy,

Modern Landfill Technology and Conditions: Implications for PPCP Management

Terry Johnson - Groundwater Protection Program, Waste Management. February 2007, the Office of National Drug Policy issued for the first time guidelines for proper disposal of pharmaceuticals.Ope

Politically Acceptable Trade Compromises Between The EC and The US: A Game Theory Approach

A model is developed to quantify the special status of agriculture in the US and the EC trade negotiations. The role of special interests are measured by a policy goals function (PGF) whose weights are estimated for each special interest group. The analysis searches for mutually acceptable, mutually advantageous trade agreements between the US and the EC using a partial equilibrium world trade model coupled with game theory. Results suggest that it is in the best interest of the US (resp. EC) 'for the EC (resp. US) to liberalize whi1e the other follows the status quo policies of 1986. Mutual gains in PGF values to both countries pursuing "large" liberalizations are unlikely to exist, although "small" liberalizations may give rise to "small" mutual gains. Altering each country's action space, and permitting compensatory payments to the most influencial groups yields trade liberalization, but free trade does not result.game theory, trade liberalization, trade negotiations, International Relations/Trade,

Effect of Intense Social Media Use on Middle School At-risk Students Test Scores in Science and Math: An Ordinal Logistic Regression Analysis

The purpose of this quantitative correlational study was to investigate the intensity of social networking use, gender, and socioeconomic status as possible predictors of eighth grade at-risk middle school students’ math and science test scores. Because this study hypothesized a general linear model between an ordinal response variable and more than one explanatory variables, ordinal logistic regression analysis was used. Social media is pervasive in the daily lives of students and so it can have a possible deleterious influence on student achievement. This idea continues to animate practitioners, researchers, parents, and all others interested in the achievement and success of adolescents. The current study was carried out in an urban middle school in the MidAtlantic United States. A convenience sample of 68 students participated in the study by completing a survey using the SNAIS instrument to measure their intensity of social networking use. A test of the full model (with gender, SES, and SNAIS as the predictor variables) compared with a constant-only or null model showed no significant effect. These outcomes were explored based on the data analysis results. Some reasons for this apparently contradictory result are explored in the discussion, including the need to examine more accurate results of student achievement versus self-reported measures to ascertain the extent of potential errors in estimating achievement levels. The study suggests that the possible outcome of the hypothesized relationship between social media, social networking, and academic achievement are more complex than might be assumed. Further research is required to investigate the relationship between the hypothesized variables

Racial Disparity in Social Spatiality: Usage of National Parks and Opera Attendance

This study investigates the existence of an ethnic separation in different settings of leisure activities. I examine the relationship between race, gender, socioeconomic status, and education with respect to the usage of popular cultural activities and high cultural activities to demonstrate the racial disparity occurring in both. A literature review pertaining to the usage of outdoor recreation, as in camping and hiking evidences the influence of racism on the disparity in Non-white participation. In contrast to out-door leisure activities, literature evidences the influence of class instead of race for the disparity in indoor leisure activities. Using the 1993 General Social Survey (GSS), I am able to arrive at the conclusion that the type of leisure chosen by an ethnic group relates much less to the educational level, economic status or the place of residence as it does to the perception of the socially constructed settings

The Hydrogeologic effects of fly ash utilization in concrete at Coal Creek Station, Underwood, North Dakota

Coal Creek Station is a two-unit 1100 megawatt electrical power plant located in southern McLean county, North Dakota. Annually, 5 million tons (4.5 million metric tons) of lignite are burned at the plant producing 550,000 tons (500,000 metric tons) of fly ash. Approximately 80,000 tons (72,624 metric tons) of ash are sold as a cement replacement, while the remainder is disposed of in lined evaporation ponds. The present study investigates the environmental consequences of ash utilization as an alternative to disposal, The Electric Power Research Institute (EPRI) provided funding for this investigation which involves the installation of 5,288 cu yds (4,043 m3) of concrete in roadways at ccs. The concrete contains a 70% replacement of Portland cement with fly ash. The purpose of this study was to determine whether or not use of fly ash in concrete releases any environmentally deleterious substances to soil or ground water. Stratigraphy at the site consists of a variable unit of fill material underlain by Paleocene bedrock of the Sentinel Butte Formation. The fill unit was created by construction projects during the past 10 years. Fill materials are more permeable than bedrock, consequently the occurrence of fill influences recharge rates and ground water flow patterns. A comprehensive water monitoring network encompassing surface water, unsaturated zone water, and saturated zone water was designed for the site. Surface water quality was documented using a runoff collector and precipitation collector. soil moisture and ground water occurrence and quality were monitored using pressure-vacuum lysimeters and monitoring wells. Two geologically distinct sites were instrumented, one representing a recharge zone {monitoring nest 2) and the other a zone of little recharge (monitoring nest 1). Each monitoring nest contains J pressure vacuum lysimeters at depths of 5, 10, and 15 feet (1.5, J.o, and 4.5 m) and 1 monitoring well. Both monitoring nests were downgradient of fly ash concrete installations. Background water quality data were provided by preconstruction samples and two monitoring wells upgradient from the site. To date, data suggest that there has been no degradation in water quality attributable to leaching from the concrete. Data obtained from monitoring nest 2 indicate that in recharge zones the composition of water in the saturated zone is largely determined within the unsaturated zone. The creation of localized recharge zones may mobilize certain constituents of the unsaturated zone causing a degradation of water quality in the saturated zone. In settings characterized by low recharge, much of the mineralization available to the system remains in the unsaturated zone and the composition of the unsaturated and saturated zone remains chemically distinct

Interactions of formamidines with the platelet serotonin uptake system

"December, 1981"An important aspect of boxicology is the determination of the actions of pesticidal compounds. In addition to providing information on the mechanisms of toxicity such studies also provide knowledge of the physiology and biochemistry of affected target and non-target species, and can lead to the future development of effective and selective pesticides. Some types of pesticides, such as organophosphate insecticides, have a well-defined mode of action. However, information about the actions of members of other classes of compounds remains obscure. The forrnamidines are one such group. The forerunner of the formarnidines is chlordimeforrn or N'-(4-chloro-o-tolyl)-N, N-dimethylforrnamidine. Chlordimeforrn, which is sold under the brands Galecror® and Fundal®, is active against insects and acarines and is especially toxic to those that are resistant to organophosphates. Chlordimeforrn and other forrnamidines are known to interact with physiologic processes involving biogenic amines in both arthropods and mammals. Since biogenic amines include important neurotransmitters and neurohorrnones, interference with their formation, degradation, or function could have serious physiological consequences. For example, an essential regulatory function at aminergic synapses and receptor sites is the uptake of neuroactive biogenic amines. Interference with amine uptake at these sites could result in abnormal physiological and behavioral actions. Rat blood platelets provide an easily accessible model for the study of amine uptake mechanisms. Thus, it was used to investigate the influence of chlordimeform and other formamidines on the uptake of serotonin or 5-hydroxytryptamine (5-HT). The specific objectives of this investigation were: 1. To determine whether chlordimeform inhibited the uptake of 5-HT by rat blood platelets, 2. To determine the relationship between formamidine structure and 5-HT uptake inhibitory potency, 3. To study the mechanism by which formamidines inhibit 5-HT uptake using chlordimeform as a model compound, and 4. To determine the effect of formamidines on the release of 5-HT from platelets