Search Results - "causality"

Drivers of micronutrient policy change in Zambia: An application of the Kaleidoscope Model by Haggblade, Steven, Babu, Suresh Chandra, Harris, Jody, Mkandawire, Elizabeth, Nthani, Dorothy, Hendriks, Sheryl L.

“…All three studies employ the Kaleidoscope Model of policy change to trace the causal forces leading to key micro-nutrient policy decisions in each of the three countries. …”
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Iron deficiency and schooling attainment in Peru by Chong, Alberto, Cohen, Isabelle, Field, Erica, Nakasone, Eduardo, Torero, Máximo

“…A key question in development economics is whether nutritional deficiencies generate intergenerational poverty traps by reducing the earnings potential of children born into poverty. To assess the causal influence on human capital of one of the most widespread micronutrient deficiencies, supplemental iron pills were made available at a local health center in rural Peru and adolescents were encouraged to take them up via classroom media messages. …”
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Isolation, genome analysis and tissue localization of ceratobasidium theobromae, a new encounter pathogen of cassava in Southeast Asia by Gil-Ordóñez, Alejandra, Pardo, Juan M, Sheat, Samar, Xaiyavong, Khamla, Leiva, Ana M., Arinaitwe, Warren, Winter, Stephan, Newby, Jonathan, Cuellar, Wilmer J.

“…The genome characterization using a hybrid assembly strategy identifies the fungus as an isolate of the species C. theobromae, the causal agent of vascular streak dieback of cacao in SEA. …”
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Resource conflict, collective action, and resilience: An analytical framework by Ratner, Blake D., Meinzen-Dick, Ruth S., May, Candace, Haglund, Eric

“…While researchers have made important advances in recent years in assessing the role of environmental resources as a causal factor in civil conflict, analysis of the positive potential of collective natural resource management efforts to reduce broader conflict is less developed. …”
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Tribes, state, and technology adoption in arid land management, Syria by Rae, Jonathan, Arab, Georges, Nordblom, Thomas, Jani, K., Gintzburger, Gustave

“…It is argued that the link made between signs of degradation and perceived moribund customary systems is not at all causal. Indeed, customary systems are found to be adaptive and resilient, and a strong influence on steppe management and the fate of technology transfer initiatives. …”
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Genome-wide association study and gene network analyses reveal potential candidate genes for high night temperature tolerance in rice by Bheemanahalli, Raju, Knight, Montana, Quinones, Cherryl, Doherty, Colleen J., Jagadish, Krishna S.V.

“…Network-based predictive models prioritized 20 causal genes at the genetic loci based on known gene/s expression under HNT in rice. …”
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Gendered networks and demand for an agricultural technology in India by Gulati, Kajal, Magnan, Nicholas, Lybbert, Travis J., Spielman, David J.

“…Using network data from men and women in the same household, we test the influence of being connected to an adopter on demand for LLL. We identify the causal gender-specific network effects using a field experiment that combines an auction with a lottery for the technology, making the presence of adopters in networks exogenous. …”
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Once bitten, twice shy? Direct and indirect effects of weather shocks on fertilizer and improved seeds use by Mulungu, Kelvin H., Manning, Dale T., Bozzola, Martina

“…We employed a two-way fixed-effects regression combined with causal mediation analysis and entropy balancing to account for income endogeneity on a rich farm-level data from 6058 smallholder households in Zambia in 2012 and 2015. …”
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Next generation sequencing reveals infection of yams (Dioscorea spp.) with multiple viruses in Uganda by Ogwok, E., Akol, Jacinta, Patil, B.L.

“…Although yams in Uganda frequently display virus-like symptoms, the specific causal agents have remained largely uncharacterised. …”
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Cattle immunized against the pathogenic l-α-glycerol-3-phosphate oxidase of Mycoplasma mycoides subs. mycoides in cattle fail to generate neutralizing antibodies and succumb to dis... by Mulongo, Musa M., Frey, J., Smith, K., Schnier, C., Wesonga, H.O., Naessens, Jan, McKeever, Declan J.

“…The membrane-associated enzyme l-α-glycerol-3-phosphate oxidase (GlpO) of Mycoplasma mycoides subs. mycoides (Mmm), the causal agent of contagious bovine pleuropneumonia (CBPP) has been identified as a virulence factor responsible for the release of toxic by-products such as H2O2 that mediate host cell injury. …”
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Identification of three strains of a virus associated with cassava plants affected by Frogskin disease by Calvert, Lee A., Cuervo Ibáñez, Maritza, Lozano Potes, Iván, Villareal, N., Arroyave, José A.

“…The principal objective of this study was to identify the causal agent of CFSD. Electron microscopy, viral purifications, double-stranded RNA (dsRNA) analysis, cloning, sequencing, rtPCR and hybridizations were carried out to characterize and associate a novel virus with the disease. …”
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Ecoinformatics for integrated pest management: expanding the applied insect ecologist's tool-kit by Rosenheim, Jay A., Parsa, S, Forbes, AA, Krimmel, WA, Law, YH, Segoli, M, Sivakoff, Frances S., Zaviezo, T, Gross, K

“…The manifold advantages of experimentation are widely appreciated: experiments provide definitive inferences regarding causal relationships between key variables, can produce uniform and high-quality data sets, and are highly flexible in the treatments that can be evaluated. …”
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Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools by Mahuku, George S., Jara, Carlos E., Cajiao V., César Hernando, Beebe, Stephen E.

“…Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the pathogen. …”
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Perceptions of groundwater degradation and mitigation responses in the Haouaria region in Tunisia by Mekki, I., Ghazouani, Wafa, Closas, Alvar, Molle, Francois

“…Avoiding the negative effects of intensive groundwater resource use is challenging, especially when the interactions and causal pathways between biophysical and socioeconomic processes are complex, and when users, management, and regulatory bodies are spatially dispersed. …”
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Physiological studies on Xanthomonas axonopodis pv Manihotis (Xam) strains isolated in Nigeria by Ogunjobi, A., Fagade, O., Dixon, A.

“…Xanthomonas axonopodis pv manihotis (Xam) is the causal agent of cassava bacterial blight (CBB)worldwide. …”
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Development of a semi selective medium for isolation of Xanthomonas campestris pv. musacearum from banana plants by Tripathi, L., Tripathi, J.N., Tushemereirwe, Wilberforce K., Bandyopadhyay, Ranajit

“…Banana Xanthomonas wilt, caused by Xanthomonas campestris pv. musacearum, is a new threat to banana cultivation in eastern Africa. The causal bacterium grows slowly in culture and is easily overgrown by contaminants. …”
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The International Plant Diagnostic Network West Africa by Beed, Fenton D., Sikirou, R., Bandyopadhyay, Ranajit, Twizeyimana, M., Miller, S.

“…A disease can only be controlled in an appropriate manner if the causal agent is known. Incorrect diagnosis of disease has led to significant losses in food production which impacts directly on the health and income of farmers. …”
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Who benefits from which agricultural research-for-development technologies? Evidence from farm household poverty analysis in Central Africa by Ainembabazi, John H., Abdoulaye, Tahirou, Feleke, S., Alene, A., Dontsop Nguezet, Paul M., Ndayisaba, P.C., Hicintuka, C., Mapatano, S., Manyong, Victor M.

“…A large share of this poverty reduction is causally attributable to adoption of improved crop varieties (32%) followed by adoption of post-harvest technologies (28%) and crop and natural resource management (26%), with the rest 14% attributable to unidentified and/or unmeasured intermediate outcomes or factors. …”
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First report of banana streak badnavirus in plantain landraces in southern Cameroon, Central Africa by Gauhl, F., Pasberg-Gauhl, C., Hughes, J.D.A.

“…These results confirm that BSV is present in Cameroon and that BSV is likely to be the causal agent of the symptoms.…”
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Better soils for healthier lives? An econometric assessment of the link between soil nutrients and malnutrition in sub-Saharan Africa by Berkhout, Ezra D., Malan, M., Kram, T.

“…We hypothesize that, if at all this is an effective strategy, there should exist a causal link between malnutrition and natural variation in the quality of soils to begin with. …”
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