Water utilities in Africa find it increasingly difficult to provide adequate services to the needy areas: their core business operations are often stagnant, compounded by a dramatic rise in periurban and poor settlements. To address these challenges, the Water and Sanitation Program Africa has designed a work program to disseminate the best practice in pro-poor service development and to help u...

Abstract. Let U be an operator in a Hilbert space H0, and let K ⊂ H0 be a closed and invariant subspace. Suppose there is a period-2 unitary operator J in H0 such that JUJ = U, and PJP ≥ 0, where P denotes the projection of H0 onto K. We show that there is then a Hilbert space H (K), a contractive operator W : K → H (K), and a selfadjoint operator S = S (U) in H (K) such that W W = PJP , W has ...

Adaptive management (AM) techniques are one of the principal tools proposed by environmental decision makers to provide flexible and responsive management approaches over time. However, the record of successful applications is surprisingly small. We believe that this in part reflects the lack of an intuitively plausible framework for evaluating AM initiatives. This paper outlines such a framewo...

We study the QCD phase diagram by first principle lattice calculations at so far unreached high densities. For this purpose we employ the density of states method. Unimproved staggered fermions, which describe four quark flavors in the continuum are used in this analysis. Though the method is quite expensive, small lattices show an indication for a triple-point connecting three different phases...

The occurrence of Indian summer monsoon rainfall (ISMR) during June to September, especially over the eastern Gangetic plain India, is lifeline for densely residing people. intraseasonal and interannual variability in ISMR provokes drought flood conditions largely affects agriculture practices. Owing its importance, several studies on meteorological subdivisions, namely West Bengal (WB), Jharkh...

3 64 lattices at = 6:0 using quenched Wilson fermions. Results for the spectrum, decay constants, the kaon B-parameter B K , and semi-leptonic form factors are given based on the current statistical sample of 28 conngurations. These \Grand Challenge" calculations are being done on the CM5 at Los Alamos in collaboration with G. Kilcup, S. Sharpe and P. Tamayo. We end with a brief statement of th...

There are many ways of imagining the future of the city. We can start with the growth of urbanisation, which envisages that in 2050 more than two-thirds of the world population will live in cities. And from there calculate the increase in the ecological footprint that urban life will determine, the increase in consumption of the land, and the possible rise in inequality and segregation. Or refl...

Record climate extremes are reducing urban liveability, compounding inequality, and threatening infrastructure. Adaptation measures that integrate technological, nature-based, social solutions can provide multiple co-benefits to address complex socioecological issues in cities while increasing resilience potential impacts. However, there remain many challenges developing implementing integrated...