New frontiers and challenges for affordable housing provision in India

The global increase in the number of slums calls for policies which improve the conditions of the urban poor, sustainably. This volume provides an extensive overview of current housing policies in Asia, Africa and Latin America and presents the facts and trends of recent housing policies. The chapters provide ideas and tools for pro-poor interventions with respect to the provision of land for housing, building materials, labour, participation and finance. The book looks at the role of the various stakeholders involved in such interventions, including national and local governments, private sector organisations, NGOs and Community-based Organisations.

Biomarkers in nutrition: new frontiers in research and application

Nutritional biomarkers-biochemical, functional, or clinical indices of nutrient intake, status, or functional effects--are needed to support evidence-based clinical guidance and effective health programs and policies related to food, nutrition, and health. Such indices can reveal information about biological or physiological responses to dietary behavior or pathogenic processes, and can be used to monitor responses to therapeutic interventions and to provide information on interindividual differences in response to diet and nutrition. Many nutritional biomarkers are available; yet there has been no formal mechanism to establish consensus regarding the optimal biomarkers for particular nutrients and applications.

Acts of Solidarity: Crossing and Reiterating Israeli-Palestinian Frontiers

In academic and public discourses on the Zionist-Palestinian conflict prevails still a ‘methodological nationalism’ based on a separatist imagination that overshadows the existence and role of Israeli-Palestinian forms of communality and solidarity. This article analyzes micropolitical practices that cross existing frontiers both within Israel and between occupied Palestinian territories and Israel. Through recent conceptualizations of ‘acts’, I read these ethnographic episodes in their intentional and performative dimension. What is the role of these ‘acts’? What are their effects on both the participants and the wider public? Through two interconnected cases, different functions of acts are explored. The first case relates to encounters between Israelis and Palestinian in the embattled city of Hebron in the occupied Palestinian territories; the second investigates moments of a Gandhi-inspired peace march at the ‘internal’ frontier of the Israeli Negev desert. The ethnographic perspective reveals what lies behind and beneath the acts, going beyond the obvious structures of power of the conflict. Acts function primarily as a valve of catharsis for the participants themselves, both overcoming and reproducing hegemonic discursive elements of the conflict. Paradoxically, acts of solidarity are often crucial in creating public knowledge about the conflict in more sectarian terms. 

High harmonic generation in the relativistic limit

The generation of extremely bright coherent X-ray pulses in the femtosecond and attosecond regime is currently one of the most exciting frontiers of physics - allowing, for the first time, measurements with unprecedented temporal resolution(1-6). Harmonics from laser - solid target interactions have been identified as a means of achieving fields as high as the Schwinger limit(2,7) (E = 1.3 x 10(16) V m(-1)) and as a highly promising route to high-efficiency attosecond (10(-18) s) pulses(8) owing to their intrinsically phase-locked nature. The key steps to attain these goals are achieving high conversion efficiencies and a slow decay of harmonic efficiency to high orders by driving harmonic production to the relativistic limit(1). Here we present the first experimental demonstration of high harmonic generation in the relativistic limit, obtained on the Vulcan Petawatt laser(9). High conversion efficiencies (eta> 10(-6) per harmonic) and bright emission (> 10(22) photons s(-1) mm(-2) mrad(-2) (0.1% bandwidth)) are observed at wavelengths <4 nm ( the 'water-window' region of particular interest for bio-microscopy).

Intensity-modulated radiotherapy reduces lung irradiation in patients with carcinoma of the oesophagus.

The 2-year survival rate after conventional radiotherapy for carcinoma of the oesophagus is around 10–20% [8]. Concomitant chemoradiation schedules have produced survival figures of 25–30% at 5 years, and this is now considered standard treatment [1]. Conformal radiotherapy techniques offer the potential to deliver higher doses of radiation to oesophageal tumours [5], and this may improve local tumour control. However, concerns regarding late normal tissue damage to the lung parenchyma and spinal cord remain a concern. Intensitymodulated radiotherapy (IMRT) allows complex dose distributions to be produced, and can reduce the dose to radiosensitive organs close to the tumour [2]. The present study was designed to investigate the impact of beam intensity modulation on treatment planning for carcinoma of the oesophagus, by comparing a standard three-dimensional conformal radiotherapy (3DCRT) technique to an IMRT technique using the same number and orientation of treatment fields.