Retribuciones económicas y adopción de tecnología en maíz con crédito ordinario y crédito compartiendo riesgo

Problema de gran Importancia para los paises menos desarrollados es el de la agricultura de subsistencia. A esta actividad se dedica en Colombia aproximadamente unos 700 000 personas de escasos recursos económicos, comúnmente denominadas "pequeños productores", quienes se caracterizan fundamentalmente por poseer pocos recursos de tierra y capital.Maíz-Zea may

Cáqueza: experiencias en desarrollo rural

Publicado en inglés bajo el título: Caqueza: experiences in rural developmen

Robust estimation of bacterial cell count from optical density

Optical density (OD) is widely used to estimate the density of cells in liquid culture, but cannot be compared between instruments without a standardized calibration protocol and is challenging to relate to actual cell count. We address this with an interlaboratory study comparing three simple, low-cost, and highly accessible OD calibration protocols across 244 laboratories, applied to eight strains of constitutive GFP-expressing E. coli. Based on our results, we recommend calibrating OD to estimated cell count using serial dilution of silica microspheres, which produces highly precise calibration (95.5% of residuals <1.2-fold), is easily assessed for quality control, also assesses instrument effective linear range, and can be combined with fluorescence calibration to obtain units of Molecules of Equivalent Fluorescein (MEFL) per cell, allowing direct comparison and data fusion with flow cytometry measurements: in our study, fluorescence per cell measurements showed only a 1.07-fold mean difference between plate reader and flow cytometry data

Caqueza : living rural development

Report and project evaluation of the Agricultural Project of Rural Development in East Cundinamarca, Colombia - discusses the success in terms of reorientation of agricultural research through field activity, agricultural extension techniques, and agricultural training; presents factors affecting adoption rates such as risk, agricultural marketing, agricultural credit and training; recommends the implementation of an agricultural policy which would permit the application of research results for the benefit of the small farmer. Bibliography

Regional Operation Research Program for Development of Geothermal Energy in the Southwest United States. Final technical Report, June 1977 to August 1978

This report describes the work accomplished from June 1977 to August 1978. The efforts by the Core and State Teams in data acquisition, electric and non-electric economic studies, development of computer support functions and operations, and preparation of geothermal development scenarios are described

Regional operations research program for development of geothermal energy in the southwest United States. Final technical report, June 1977-August 1978

The efforts by the Core and State Teams in data acquisition, electric and non-electric economic studies, development of computer support functions and operations, and preparation of geothermal development scenarios are described. Team reports for the states of Arizona, Colorado, Nevada, New Mexico, and Utah are included in the appendices along with a summary of the state scenarios. (MHR

Epidemiology of fungaemia in Sweden : A nationwide retrospective observational survey

Objectives: To identify the epidemiology and antifungal susceptibilities of Candida spp. among blood culture isolates to identify the epidemiology and antifungal susceptibilities of Candida spp. among blood culture isolates in Sweden. Methods: The study was a retrospective, observational nationwide laboratory-based surveillance for fungaemia and fungal meningitis and was conducted from September 2015 to August 2016. Results: In total, 488 Candida blood culture isolates were obtained from 471 patients (58% males). Compared to our previous study, the incidence of candidaemia has increased from 4.2/100 000 (2005-2006) to 4.7/100 000 population/year (2015-2016). The three most common Candida spp. isolated from blood cultures were Candida albicans (54.7%), Candida glabrata (19.7%) and species in the Candida parapsilosis complex (9.4%). Candida resistance to fluconazole was 2% in C. albicans and between 0% and 100%, in non-albicans species other than C. glabrata and C. krusei. Resistance to voriconazole was rare, except for C. glabrata, C. krusei and C. tropicalis. Resistance to anidulafungin was 3.8% while no Candida isolate was resistant to amphotericin B. Conclusions: We report an overall increase in candidaemia but a minor decrease of C. albicans while C. glabrata and C. parapsilosis remain constant over this 10-year period