SOCIOECONOMIC ISSUES IN IRRIGATION DEVELOPMENT AND DISTRIBUTION

Resource /Energy Economics and Policy,

A REVIEW AND AN ANNOTATED BIBLIOGRAPHY OF STUDIES OF SOIL CONSERVATION PROGRAMS, PRACTICES AND STRATEGIES

This paper provides a brief synthesis of articles, papers and studies concerned with soil conservation programs, practices and strategies and their effects on income and water quality. The emphasis is on publications during the 1970's to help bring researchers up to date on some of the current literature.Land Economics/Use,

Effects of carbon dioxide on trapped electrolyte hydrogen-oxygen, alkaline fuel cells

Effects of carbon dioxide on trapped electrolyte hydrogen-oxygen alkaline fuel cell

COST BENEFIT ANALYSIS FOR THE MINNESOTA RAIL SERVICE IMPROVEMENT PROGRAM METHODOLOGY AND A CASE STUDY

The objective of this study is to develop a methodology for evaluating the economic feasibility of participating in the Minnesota Rail Service Improvement Program by eligible individuals or groups.Public Economics,

Rapid Onset Hydralazine-induced Antineutrophil Cytoplasmic Antibody (ANCA) Associated Vasculitis Presenting with Hemoptysis and Kidney Failure: Case Report

Hydralazine-induced vasculitis can be challenging to recognize and diagnose as presenting symptoms vary and can mimic other conditions or diseases, however, swift intervention and treatment is key in halting progression of the disease and providing patients with the best possible outcomes. A 71-year-old African American female presented to the emergency department with weakness, fatigue, anemia, blood-streaked sputum, fever, chills, and severe myalgias. Hydralazine was prescribed to treat resistant hypertension eight months prior to presentation. Hydralazine was discontinued on hospital day (HD) 4. Pertinent laboratory values showed elevated inflammatory markers, positive antinuclear antibody (ANA), negative rheumatoid factor (RF), normal complement levels, and positive anti-histone, anti-proteinase 3, anti-myeloperoxidase, anti-double stranded DNA, and p-ANCA. Renal biopsy confirmed chronic vascular injury, likely related to long standing hypertension, contributing to the development of chronic renal injury and stage 4 kidney disease. The patient was discharged on mycophenolate mofetil (MMF) and atovaquone. The patient was later readmitted with progressive renal failure, and treatment transitioned to cyclophosphamide (CYC) and sodium 2-mercaptoethane sulfonate (MESNA), plasmapheresis, and hemodialysis. This case illustrates the challenging presentation and course that patients with drug-induced vasculitis can face on initial presentation to the hospital and after discharge. The onset to disease in this case was faster than the average time to disease presented in the literature

Using Rubrics for Information Literacy Skill Assessment: A Case Study for Business Education

Information literacy—the ability to find, evaluate and use information effectively—is an essential skill set. The authors examine how assignments such as case analyses and research reports help business students master these abilities and provide examples of how analytic rubrics with measurable outcomes are particularly suited to assessing these skills. Also demonstrated is how librarians enhance and support student learning of information literacy by teaching in-depth research skills. Working together, professors and librarians can give students a solid foundation in the information-handling skills they need to be effective and productive in the workplace today

Knowledge and practice of injection safety among nurses at university of Calabar Teaching Hospital (UCTH), Calabar, Nigeria: implications for nursing education

Exposure to blood borne viruses, by health care workers has been on the increase with nurses mostly affected. These exposures constitute serious challenges in the health care setting as they are common causes of illness and mortality among health care workers including hospitalized patients. Practice of standard precautions has been shown to reduce the risk of exposure to blood and body fluids. Over the years, injection safety has become an integral part of infection control in view of many diseases that are transmitted through unsafe injection practices. This study was conducted to assess the knowledge and practice of injection safety among nurses in UCTH, Calabar using a descriptive research design. The specific objectives were to assess the level of knowledge of nurses about injection safety, assess injection safety practices and ascertain the barriers to injection safety practices among nurses in UCTH. Purposive sampling was used to select one hundred and ninety one (191) nurses across the wards in UCTH Calabar. A checklist containing 37 items was used to elicit information. Frequency and percentages were used for descriptive data while the hypothesis was tested using Chi square (X2) analysis at 0.05 level of significance. Result revealed that 59.7% of the respondents had good knowledge of injection safety and 66.0% had good practice of injection safety while 6.8% had poor practice. Barriers to injection safety practices included inadequate supply of injection safety material, none display of injection safety guidelines. Statistical analysis revealed a significant relationship between level of knowledge and practice of injection safety among nurses (P = 112.8 < 0.05). Recommendations: health care administrators and nurse leaders should display injection safety guidelines, supply injection safety materials and ensure that more nurses are recruited into the workforce.Keywords: Injection Safety, Nurses, Knowledge and practic

Modeling kinetic partitioning of secondary organic aerosol and size distribution dynamics: representing effects of volatility, phase state, and particle-phase reaction

This paper describes and evaluates a new framework for modeling kinetic gas-particle partitioning of secondary organic aerosol (SOA) that takes into account diffusion and chemical reaction within the particle phase. The framework uses a combination of (a) an analytical quasi-steady-state treatment for the diffusion–reaction process within the particle phase for fast-reacting organic solutes, and (b) a two-film theory approach for slow- and nonreacting solutes. The framework is amenable for use in regional and global atmospheric models, although it currently awaits specification of the various gas- and particle-phase chemistries and the related physicochemical properties that are important for SOA formation. Here, the new framework is implemented in the computationally efficient Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) to investigate the competitive growth dynamics of the Aitken and accumulation mode particles. Results show that the timescale of SOA partitioning and the associated size distribution dynamics depend on the complex interplay between organic solute volatility, particle-phase bulk diffusivity, and particle-phase reactivity (as exemplified by a pseudo-first-order reaction rate constant), each of which can vary over several orders of magnitude. In general, the timescale of SOA partitioning increases with increase in volatility and decrease in bulk diffusivity and rate constant. At the same time, the shape of the aerosol size distribution displays appreciable narrowing with decrease in volatility and bulk diffusivity and increase in rate constant. A proper representation of these physicochemical processes and parameters is needed in the next generation models to reliably predict not only the total SOA mass, but also its composition- and number-diameter distributions, all of which together determine the overall optical and cloud-nucleating properties

Monitoring Heart Function in Larval Drosophila melanogaster for Physiological Studies

We present various methods to record cardiac function in the larval Drosophila. The approaches allow heart rate to be measured in unrestrained and restrained whole larvae. For direct control of the environment around the heart another approach utilizes the dissected larvae and removal of the internal organs in order to bathe the heart in desired compounds. The exposed heart also allows membrane potentials to be monitored which can give insight of the ionic currents generated by the myocytes and for electrical conduction along the heart tube. These approaches have various advantages and disadvantages for future experiments that are discussed. The larval heart preparation provides an additional model besides the Drosophila skeletal NMJ to investigate the role of intracellular calcium regulation on cellular function. Learning more about the underlying ionic currents that shape the action potentials in myocytes in various species, one can hope to get a handle on the known ionic dysfunctions associated to specific genes responsible for various diseases in mammals