Sphaerodactylus kirbyi

Number of Pages: 2Integrative BiologyGeological Science

Sphaerodactylus vincenti

Number of Pages: 6Integrative BiologyGeological Science

ENDOGENOUS GROWTH MODELS AND THE ENVIRONMENTAL KUZNETS CURVE: AN ANALYSIS OF GLOBAL ENVIRONMENTAL SUSTAINABILITY

Fertilizer consumption per cubic meter of freshwater is taken as a proxy for global water quality indicator. A global model of environmental quality for 121 countries confirms the Kuznet's hypothesis. Global turning point is reached at nearly five times the average income of all countries. Foreign Direct Investment (FDI) was significant to increase the national income. Increased aid and larger farm size per capita favored higher environmental quality, albeit insignificant. A flow of better technology and possible non-agricultural employment might help improve water quality in developing countries when their net income increases.Environmental Economics and Policy,

Demographic and Management Factors Affecting the Adoption and Perceived Yield Benefit of Winter Cover Crops in the Southeast

The inclusion of cover crops in cropping systems brings direct and indirect costs and benefits. Farmers will adopt and utilize cover crops as long as the perceived benefit of using them is positive. This paper examines the demographic and management factors affecting the adoption and perceived benefit (in terms of improved crop yield) of using winter annual cover crops. A double selectivity model of cover crop adoption and perceived yield gain was estimated using survey data of Alabama farmers examining cover crop use and management. Results may help in understanding factors shaping farmers’ perceptions, adoption, and retention of cover crops.adoption, conservation, cover crops, double selectivity model, perceived yield gain, tobit model, Environmental Economics and Policy, Farm Management, Q12, Q15, Q55,

A CO2 Monitoring and Control System for Plant Growth Chambers

Author Institution: Botany Department and Phytotron, Duke UniversityPATTERSON, DAVID T. AND JOHN L. HITE. A CO2 monitoring and control system for plant growth chambers. Ohio J. Sci. 75(4): 190, 1975

BIOECONOMIC MODELING TO ASSESS ECONOMIC AND WATER QUALITY IMPACTS OF LAND USE CHANGE

Changes in water quality and agricultural and forest revenues due to land use changes are compared. A biophysical model estimates the effect in nitrogen and phosphorus runoff and sediment deposition. The results are combined with farm enterprise budgets to estimate the economic returns resulting from land use changes.Land Economics/Use,

Preservice Teacher Preparation in International Contexts: A Case-Study Examination of the International Student Teacher Programs

This article examines the teacher preparation experiences of preservice teachers in six international contexts: China, Fiji, Kiribati, Mexico, Samoa, and Tonga. More specifically, it looks at the value-added components in an international teacher education program, with an emphasis on effective teaching and employability. Theoretically the study is based on Straus and Corbin’s (1998a) substantive grounded theory and Patton’s (1997) Theory of Action Framework. Verbal and non-verbal forms of feedback were identified as essential aspects of the international preservice training experience. Cultural diversity, teaching English as a second language, collaboration, and exposure to a different educational system were identified among several components as advantages to individuals who conduct their preservice teacher training in international settings.</jats:p

Believe and Achieve: An Examination of Predictors of Mathematical Achievement in Secondary Mathematics Students

This research addressed the following research question: which specific variable has the greatest predictive power of mathematical literacy and problem solving competency while controlling for socioeconomic status (SES)? The variables that were studied were categorized as follows: demographic and personal history variables, attitudinal variables, behavioral variables, and school organization and structure variables. Much of the existing literature cites SES as the most powerful predictor of math achievement. Using multiple linear regression modeling, this study found that many variables studied were determined to be significant predictors of mathematical literacy and/or problem solving competency while controlling for SES. Every category of variables had at least one statistically significant predictor: demographic and personal history variables, attitudinal variables, behavioral variables, and school organization and structure variables. The attitudinal variables had the most significant predictors of math literacy and problem solving competency and categorically proved to be the most powerful. The statistically significant predictors were categorized as major predictors and minor predictors of mathematical achievement. The variables with a significant but less powerful effect on math achievement are designated as minor predictors; these minor predictors include: gender, immigration status, student attribution to failure, perceived math support, number of minutes in math class, math education of teachers, and class size. The variables with the greatest significant and powerful effect on math achievement are designated as major predictors; these major predictors include: socioeconomic status, math self-efficacy, math anxiety, and math teacher certification. The associated predictive powers of the major predictors were greater than the predictive power of SES, the control variable. Even when not controlling for SES, the attitudes of students’ self-efficacy was the most powerful predictor of math literacy and problem solving competency. These results hold substantial implications in the areas of math literacy and problem solving competency for practitioners of math education and academic researchers. This study may be used to inform pedagogical practices, districts, policy makers, and future areas of research

Investigation on the Use of a FLIR (Forward Looking Infrared) Camera to Detect Relationships Between Internal and Surface Temperatures of Beef Carcasses During Chilling

The objective of this study was to collect preliminary data on the efficacy of using thermal imaging technology as a means to assess beef carcass chilling

Influence of Post-harvest Circulatory Rinse on Tenderness and Objective Color of Cow Striploin Steaks

The objective of this study was to compare the effect of a post-harvest rinse of an isotonic solution through the circulatory system on tenderness of steaks from cows