Explore the important roles of community helpers who keep a community safe and healthy. Reproducible student activities integrating social studies and language arts enable you to boost your teaching efficiency and effectiveness. Get started quickly with teacher suggestions for planning and implementation, a list of skills, fiction and nonfiction resource lists, a teacher evaluation sheet, and student tracking sheet. 40 activities. This book supports many of the fundamental concepts and learning outcomes from the curriculums for these provinces: British Columbia, Grade 2, Social Studies, Governance; Saskatchewan, Grade 2, Social Studies, Dynamic Relationships. 86 pages.

These papers address roles and issues related to social and institutional innovations and approaches in food security in Southern and Eastern Africa. They include implementation of food security policy, rural livelihood and agricultural innovation, land consolidation for food security, interdisciplinary school-based health for food security, harnessing indigenous and modern knowledge for food security, household food resource handling for food security, institutions for technological innovation, the role of land tax in food security, trade protectionism and food security, and gender-power relations in food security.

Salt (NaCl) is a key component of the human diet because it provides the sodium ion (Na+), an essential mineral for our body. Na+ regulates extracellular fluid volume and plays a key role in many physiological processes, such as the generation of nerve impulses. Na+ is lost continuously through the kidneys, intestine, and sweating. Thus, to maintain proper bodily balance, losses have to be balanced with foods containing this cation. The need for salt explains our ability to detect Na+ in foodstuffs: Na+ elicits a specific taste sensation called “salty”, and gustatory sensitivity to this cation is crucial for regulating its intake. Indeed, the widespread use of salt in food products for flavoring and to improve their palatability exploits our sense of taste for Na+. When consumed in excess, however, salt might be detrimental to health because it may determine an increase in blood pressure—a major risk factor for many cardiovascular diseases. Understanding how salt taste works and how it affects food preference and consumption is therefore of paramount importance for improving human nutrition. This book comprises cutting-edge research dealing with salt taste mechanisms relevant for nutrition and health.