Full state observer-based pole placement controller for pulse width modulation switched mode voltage-controlled buck Converter.

Switched mode DC-DC converters play an important role in today's renewable energy systems, electric Vehicles, consumer electrical appliances, and many more. While many researchers have designed controllers for DC-DC converters, achieving low implementation cost remains a significant hurdle. This paper proposes a cost-effective observer-based pole placement controller for a PWM voltage-controlled Buck converter with clear step by step design approach.

Effects of common interest groups on rural women and youth livelihood: A qualitative study from Central Ethiopia.

The study was conducted to examine the implications of the Common Interest Group (CIG) scheme for rural livelihood change in the selected areas of the Wara-Jarso woreda, Central Ethiopia. The study focuses on the activities of the CIGs, their effectiveness, Strengths, Weaknesses, Opportunities, and Threats, along with the changes in the livelihood status of CIG members. Four CIGs that fits into the aim of the study were purposively selected from the CIGs operating in the woreda.

Undernutrition and associated factors in orphan children aged 6-59 months in Gambella Southwest, Ethiopia: A community-based cross-sectional study.

Objective: The study aimed to assess the prevalence of stunting, wasting, underweight and associated factors in orphaned children under 5 years old.

Design: A cross-sectional study.

Setting: Gambella City, Ethiopia.

Impact of urban expansion to peri-urban smallholder farmers' poverty in Tigray, North Ethiopia.

Urban expansion in African and other developing countries occurred and happening by encroaching fertile agricultural land. As a result, close to fifteen million people are displaced every year. This paper examines the consequences of urban expansion on peri-urban farmers' poverty.

Assessment of the level and factors associated with knowledge, attitude and practice of blood donation among medical and paramedical personnel in ALERT Hospital, Ethiopia.

Though there was a high blood supply need in response to high communicable disease and increased emergency conditions; the practice of health professionals and non-health professionals on voluntary blood donation is still unexpectedly low in Ethiopia. Health professionals and non-health professionals working in the health sectors are pivotal in taking the lead to reverse the effect of inadequate blood supply system in the country. Therefore, the study aimed to understand the level and contributing factors of knowledge, attitude and practice of voluntary blood donation among health and non-health professionals in ALERT Hospital, Addis Ababa, Ethiopia.