Determinants and impact of adopting climate-smart brachiaria grass among dairy farmers in Kenya

Evolving changes such as population growth, urbanisation and a growing middle-income class in Africa are redefining the agro-food systems. Population growth is expected to double the demand for milk and meat products in Africa by 2050. This raises concerns on the capability of African countries to meet the projected demand. It is imperative that farmers seize the opportunities for earning higher and stable income by responding to the new trends and overcoming the constraints tightened by climate change. Access to quality fodder has continued to be the single most important challenge in livestock production systems. The objective of this article is to evaluate the impact of climate-smart Brachiaria on feed sufficiency and milk productivity in dairy production in Kenya. A random sample of 237 farmers, 111 adopters and 126 non-adopters of Brachiaria was selected in Makueni and Siaya using multi-stage sampling. Data was collected through face to face interviews and Propensity score-matching approach was then employed to evaluate the impact of Brachiaria grass on feed sufficiency and milk productivity. In this study, non-adopters of Brachiaria were farmers who were using Napier grass as their source of fodder. The findings reveal that adoption of Brachiaria increases milk production by about 27.6%. This translates to an average increase of about 3 litres daily per animal. Adoption of Brachiaria consequently increases feed sufficiency measured by time spent in feed related activities by the primary woman in a household by 31.6%. Adopters of Brachiaria spend 2 hours less in sourcing and preparing feed in dry seasons. The surplus milk implies more income for the household, improved nutrition from milk consumption and improved wealth status of household. Results on feed sufficiency imply that Brachiaria offers an alternative sustainable source of fodder in fodder scarce periods and releases the burden on women in feed related activities. There is also an improvement in the welfare of families. The study concludes that policies and efforts aimed at increasing widespread adoption should address factors that influence adoption. We recommend increasing extension and training on climate-smart fodder and strengthening collective institutions such as farmer groups for sustainable livestock production

Boson Fusion and Higgs production at the LHC in six fermion final states with one charged lepton pair

Boson boson scattering and Higgs production in boson boson fusion will be actively investigated at the LHC. We have performed a parton level study of all processes of the type $q_1 q_2 \to q_3 q_4 q_5 q_6 l^+l^-$ using for the first time a full fledged six fermion Monte Carlo event generator which employs exact matrix elements at \O(\alpha_{em}^6). We have examined Higgs production in vector boson fusion followed by the decay chain $H\to ZZ\to l^+l^-jj$, including exactly all electroweak irreducible backgrounds. In the high mass region we have compared the case of a relatively light Higgs with the no-Higgs case. The integrated cross section for the latter case is more than twice that in the former for a minimum invariant mass of the $ZV$ pair of about 800 \GeV. We find, in a preliminary anlysis at parton level that, summing up the muon and the electron channels, about 30 events are expected in the light Higgs case for L=100 $fb^{-1}$.Comment: Final version published in Phys.Rev.

"Burying our dead in your city": interpreting individual constructs of belonging in the context of burial of loved ones in exile.

ABSTRACT Globalization and an exponential increase in cross-border migration have led to a redefining of belonging and membership. It is argued that the question of belonging is no longer a question of residential geography and ties to location, but one that is constructed in light of a decline of the meaning of fixed place in an ever more globalized world. Globalization has facilitated a rise of alternatives to place-bound identity. Yet, when refugees face the experiences of death and burial of loved ones in exile, they seem to cling to fixed place as the base for asserting their identity and where they belong while in exile. Although where one is buried is important in many African communities, burying loved ones on foreign land does not generate rather a new sense of connection to the foreign land. Instead, refugees repudiate ties to this soil and consciously invoke references to their homeland and geographical locations in describing where they belong. This paper presents a discussion of the concepts of belonging and place in the context of compelling experiences of death and burial in exile for refugees in a globalized world

PHASE - An event generator for six fermion physics at the LHC

PHASE is a Monte Carlo event generator, under construction, for all Standard Model processes with six fermions in the final state at the LHC. It employs the full set of tree level Feynman diagrams, taking into account fermion masses for b quarks. The program can generate unweighted events for any subset of all six fermion final states in a single run, by making use of dedicated pre-samples. An interface to hadronization is provided.Comment: 4 pages, Latex, 1 figure. Talk given by E. Accomando at the IX International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT03), KEK, Tsukuba, December 1-5, 200