خيارات البحث
النتائج 1821 - 1830 من 2,098
On the way to improving vocational education: new electrical engineering study tool CD-ROM "Electrical circuit analysis" (ELCIRA)
2002
Klegeris, I. (Latvia Univ. of Agriculture, Jelgava (Latvia)) | Priednieks, E. | Ruplis, A
The rising development of sciences and technologies as well as social problems especially, high unemployment rate, make it indispensable to achieve an incessant innovation of higher education system including the field of electrical and electronics engineering. Some aspects of this goal are formulated in the report of the Ministry of Education and Science of Latvia "Flexible Learning Strategy in Latvian Higher Education" in 1999. The study was based on applying SWOT analysis, i.e. Strengths, Weaknesses, Opportunities and Threats were identified. This paper reports the results of one of the first attempts to elaborate and implement an original student centred interactive learning tool for the students of higher and vocational schools in Latvia.
اظهر المزيد [+] اقل [-]The conceptual models of drained land usage in Lithuania
2002
Saulys, V. (Lithuanian Inst. of Water Management, Vilainiai, Kedainiai reg. (Lithuania))
Land reclamation is very important in Lithuania: under the climatic conditions of our country it is necessary to drain land. Today approximately 90% of the whole agricultural production are grown in drained land. In this article financial problems of land reclamation works are analysed. Not taking into account our country's financial abilities, the maintenance of land reclamation systems must be done properly, and in time - only then, we will be able to guarantee the best long-lasting functioning of drainage systems, and in the future there will be no greater and it will be unnecessary to do expensive preliminary reconstructions works. The maintenance works of drainage systems may be full-filled properly and in time when increasing the financing for land reclamation works up to the necessary level (any subsidies resources and payments are possible, as well as different labour variants and other alternatives) or reducing the maintained drained areas, so that we could throughly keep on eye on land reclamation systems.
اظهر المزيد [+] اقل [-]Spread of thrips on winter cereals in Lithuania
2002
Smatas, R. (Lithuanian Inst. of Agriculture, Akademija, Kedainio reg. (Lithuania))
The spread of thrips was observed in winter rye, wheat and triticale crops during the growing season of 2001 at the Lithuanian Institute of Agriculture in Dotnuva. Thrips started to spread in winter cereals of the end of tilling - beginning of stem elongation stage (DC 29-30). In winter rye and triticale the spread of thrips was similar. There were two well-defined peaks of thrips occurrence. The highest incidence of thrips was on winter rye. There were 100% infested stems and 15.4 thrips per infested stem in rye, 90% infested stems and 6.9 thrips per infested stem in triticale and 84% infested stems and 2.9 thrips per infested stem in wheat.
اظهر المزيد [+] اقل [-][Investment appraisal of agricultural land afforestation]
2002
Zudrags, M. (Latvia Univ. of Agriculture, Jelgava (Latvia))
Today more than 17.5% of agricultural land is abandoned in Latvia. Effective use of this land is essential for rural development planning, as well as growth of national economics. Afforestation is one of alternative uses of abondoned and marginal agricultural land. Requisite investments and management costs are calculated for forest plantations of pine, spruce, birch and aspen. The analysis of investment appraisal is based on several criteria - net present value, internal rate of return, benefit/cost ratio and equivalent annual annuity.
اظهر المزيد [+] اقل [-][Analysis of implementation of financial statements in agriculture]
2002
Oras, K. (Estonian Agricultural Univ., Tartu (Estonia))
[The use of formal and informal approaches in the investigation of agricultural production systems. Case of farmer milk production] | El uso de enfoques formales e informales en la investigacion en sistemas de produccion agropecuarios. El caso de la produccion campesina de leche
1997
Castelan Ortega, Octavio Alonso | Arriaga Jordan, Carlos | Fawcett, Roy
[Ten years of interdiscipliary research in the Investigation Center of Agricultural Sciences] | Diez anos de intentos interdisciplinarios en el centro de investigacion en ciencias agropecuarias
1997
Arellano Hernandez, Antonio
[Farmer production systems in two zones of San Felipe del Progreso. Mexico State: Contrasting strategies] | Caracterizacion de los sistemas de produccion campesinos en dos zonas del municipio de San Felipe del progreso, Mexico: estrategias contrastantes
1997
Arriaga Jordan, Carlos | Gonzalez Diaz, Justino | Gonzalez Esquivel, Carlos | Nava Bernal, Gabino | Velazquez Beltran, Leon
[Feed legumes introduction in agropastoral systems] | Evaluacion de la introduccion de leguminosas forrajeras en la interaccion entre los elementos agricolas y pecuarios de sistemas de produccion campesinos
1997
Sanchez Vera, Ernesto
[Compost elaboration and application in San Felipe del Progreso, Mexico State] | Elaboracion y aplicacion de compostas al suelo agricola en el municipio de San Felipe del Progreso, estado de Mexico
1997
Chavez Mejia, Maria Cristina (ccm@coatepec.uaemex.mx)
