Search Results - "biology"

Variation for aggressiveness within and between lineages of Xanthomonas oryzae pv. oryzae by Mundt, C.C., Nieva, L.P., Vera Cruz, C.M.

“…This variation appears to be more prevalent within than among known phylogenetic groups, although mean differences among phylogenetic groups may still be of significant biological importance.…”
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Chapter 7. Plant parasitic nematodes of wheat by Yavuzaslanoglu, Elif, Hekimhan, Hakan, Nicol, Julie, Dababat, Abdelfattah Amer

“…Important management strategies, including genetic resistance, combinations of applying chemicals or biological agents to seed or soil, planting non-host crops, or prolonging fallow periods in the problem areas, are still being used in different parts of the world.…”
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Carotenoids in raw plant materials: by Jaeger de Carvalho, Lucia Maria, Dellamora Ortiz, Gisela Maria, Viana de Carvalho, José Luiz, Gomes de Oliveira, Alcides Ricardo

“…Time, temperature, and style of cooking are determinant conditions for the increase or decrease of total antioxidant activity. The biological activity of carotenoids depends on their bioaccessibility and solubilization in the gastrointestinal tract. …”
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Determinants of millet diversity at the household-farm and village-community levels in the drylands of India: The role of local seed systems by Nagarajan, Latha, Smale, Melinda, Glewwe, Paul

“…This research characterizes the biological diversity of millet crops in the semiarid regions of India at the household and village‐community ( panchayat) scales of analysis, placing that evidence in the context of local seed systems. …”
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Guía técnica para el establecimiento de viveros comunitarios by Diaz Forero, Oscar Eduardo, Durango Morales, Sandra Guisela, Calderon, Victor Hugo

“…These nurseries propagate native and agroforestry species, promoting biodiversity and facilitating biological corridors. They improve production systems by migrating towards more sustainable practices, mitigating vulnerability to climate change, and promoting carbon sequestration by integrating trees into livestock farms. …”
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Trends in insecticide resistance in natural populations of culex quinquefasciatus and its impact on mosquito fitness in Dschang, West Cameroon by Poumachu, Y., Lontsi-Demano, M., Zeb, J., Djoufounna, J., Djiappi-Tchamen, B., Hashem, A., Alajmi, R.A., Mochie, C.L., Awono-Ambene, H.P., Antonio-Nkondjio, C., Tchuinkam, T., Abd-Allah, E.F.

“…Common use of larvicides and adulticides conduct to the development of vectors resistance which can lead to deep biological changes, including fitness costs. We assessed the profile of insecticide resistance in field populations of Cx. quiquefasciatus and its potential fitness cost in a lineage selected for deltamethrin and permethrin resistance in the laboratory for two generations. …”
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Methods and explanations in the study of human actions and their environmental effects. CIFOR/WWF Special Publication. by Vayda, A.P.

“…Citing relevant sources from the literature of philosophy as well as social and biological science, he argues that we should be guided in our research by the goal of giving causal explanations of concrete human behaviour and its concrete environmental effects. …”
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Alley cropping for food crop production in the humid and subhumid tropics by Kang, B., Van der Kruijs, A.C.M.B., Couper, D.C.

“…Prunings from woody species can also improve and maintain the organic matter, nutrient status, and biological activity of the soil. Results from long-term plots showed that maize yield was higher in alley-cropping plots than in control plots, even with the application of nitrogen. …”
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Setting critical limits to ecological indicators of sustainable tropical forestry by Geisler, C.C., Ghazoul, J., Hellier, A.

“…In order to determine the desired biological state of a forest, indicator baseline values, together with some measure of variability under natural conditions are needed. …”
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The science of sustainable development: local livelihoods and the global environment by Sayer, Jeffrey A., Campbell, Bruce M.

“…The book responds to needs expressed by the Convention on Biological Diversity, the Global Environment Facility and many other international fora where the problems of conserving the environment in poor countries are debated. …”
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Genetics of disease resistance in small ruminants in Africa by Baker, R.L.

“…Disease is one of the most important biological constraints to small ruminant production in the many different agroclimatic zones of Africa. …”
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Agriculture for development in Africa: Options and way forward by Anandajayasekeram, P.

“…The first part - agriculture for development - outlines the different ways agriculture contributes to development, as an economic activity and leading sector for economic growth, as a livelihood, as a provider of environmental services, peace and stability as pre-conditions for sustainable growth and development, new technology, improved human capital, sustainable growth in physical and biological infrastructure, effective institutes, and enabling political environment. …”
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Overstocking the range: A critical analysis of the environmental science of Sahelian pastoralism by Turner, M.

“…Rather than being solely a biological phenomenon, growth in the Maasina cattle population resulted from the historical confluence of inoculation programs with greater local demand for covert accumulation brought about by the changing social relations between the FulBe and the RimayBe.…”
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Gene-expression profiling discriminates between cerebral malaria (CM) - susceptible mice and CM-resistant mice by Delhaye, N.F., Coltel, N., Puthier, D., Flori, L., Houlgatte, R., Iraqi, F.A., Nguyen, C., Grau, G.E., Rihet, P.

“…The analysis of gene ontological terms revealed that the genes that clustered and were related to susceptibility to CM preferentially belonged to some biological process classes, such as those pertaining to immune responses. …”
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Climate change and the socioeconomics of global food production: a quantitative analysis of how socioeconomic factors influence the vulnerability of grain crops to drought by Simelton, Elisabeth, Fraser EDG, Termansen, Mette, Benton, Tim G., Gosling SN, South A, Arnell, N.W., Challinor, Andrew J., Dougill, Andrew J., Forster PM

“…However, current tools to anticipate climate change impacts focus almost entirely on biological and environmental processes. For example, most large-scale crop models can identify where yields are sensitive to new temperatures and CO2 concentrations but do not include any socio-economic factors that may enable (or inhibit) farmers’ abilities to adapt. …”
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Climate change and micro-organism genetic resources for food and agriculture: state of knowledge, risks and opportunities by Beed, Fenton D., Benedetti, A., Cardinali, G., Chakraborty, S., Dubois, T., Garrett, K.A., Halewood, Michael

“…The study encompasses micro-organisms in five functional domains: soil inhabitants, plant and rhizosphere inhabitants, plant pathogens, biological control agents and food production systems. …”
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Living with dams: managing the environmental impacts by McCartney, Matthew P.

“…Dams, through disruption of physiochemical and biological processes, have water and associated environmental impacts that have far reaching social and economic consequences. …”
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The contribution of livestock to soil fertility by Tarawali, Shirley A., Larbi, Asamoah, Fernández Rivera, S., Bationo, B. André

“…In this context, the influence of ruminant livestock on soil chemical, physical, and biological properties, soil organic matter and nutrient contents, as well as strategies to maximize nutrient capture and utilization are considered. …”
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Shrinking a large dataset to identify variables associated with increased risk of Plasmodium falciparum infection in Western Kenya by Tremblay, M., Dahm, J.S., Wamae, C.N., Glanville, William A. de, Fèvre, Eric M., Dopfer, D.

“…The 42 predictors make biological sense and are supported by previous studies. …”
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A review of sheep and goats in Eastern Africa by Kiwuwa, G.H.

“…The sheep tended to be 36 per cent more efficient biologically than goats. The difference was largely reflected in higher weaning weight (19.28 kg) for sheep as compared to weaning weight of 9.40 kg for goats. …”
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