Innovating home visiting to mothers and infants by community health workers: an action-oriented guide

Abstract Objectives: to describe the process of development and the structure of an action-oriented guide for home visits (HVs) to mothers and infants by Community Health Workers (CHWs). The guide was adopted in a controlled trial aimed at assessing its efficacy in improving CHWs' performance. Methods: steps to develop the guide included: 1) Review of international and national standards and recommendations for community interventions for maternal and child care; 2) Assessment of perceived needs of CHWs and other Family Health professionals regarding prenatal and postnatal HVs; 3) Identification of elements to construct the guide. Results: the Guide provides action-oriented instructions for 10 HVs during prenatal and postnatal period up to 9 months instead of the 18 HVs currently recommended by Ministry of Health. Specific tasks for each visit including assessment and promotion of early child development (ECD) and an action-oriented risk classification are introduced as standardized operational practice. Conclusions: the described approach to guide construction allows adapting the guide contents to the health system context in Brazil and other countries interested in improving quality of HVs by CHWs. The guide, by identifying tasks to be carried out and actions to be taken at each HV, provides an innovative approach and represents a requisite for a more efficient and effective use of their time

Stochastic Gravity: Theory and Applications

Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein-Langevin equation, which has in addition sources due to the noise kernel.In the first part, we describe the fundamentals of this new theory via two approaches: the axiomatic and the functional. In the second part, we describe three applications of stochastic gravity theory. First, we consider metric perturbations in a Minkowski spacetime: we compute the two-point correlation functions for the linearized Einstein tensor and for the metric perturbations. Second, we discuss structure formation from the stochastic gravity viewpoint. Third, we discuss the backreaction of Hawking radiation in the gravitational background of a quasi-static black hole.Comment: 75 pages, no figures, submitted to Living Reviews in Relativit

Stochastic Gravity: Theory and Applications

Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein-Langevin equation, which has in addition sources due to the noise kernel. In the first part, we describe the fundamentals of this new theory via two approaches: the axiomatic and the functional. In the second part, we describe three applications of stochastic gravity theory. First, we consider metric perturbations in a Minkowski spacetime, compute the two-point correlation functions of these perturbations and prove that Minkowski spacetime is a stable solution of semiclassical gravity. Second, we discuss structure formation from the stochastic gravity viewpoint. Third, we discuss the backreaction of Hawking radiation in the gravitational background of a black hole and describe the metric fluctuations near the event horizon of an evaporating black holeComment: 100 pages, no figures; an update of the 2003 review in Living Reviews in Relativity gr-qc/0307032 ; it includes new sections on the Validity of Semiclassical Gravity, the Stability of Minkowski Spacetime, and the Metric Fluctuations of an Evaporating Black Hol