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Papers by David Macharia

Research paper thumbnail of Examining the value of global seasonal reference evapotranspiration forecasts to support FEWS NET’s food insecurity outlooks

Journal of Applied Meteorology and Climatology, 2017

The Famine Early Warning Systems Network (FEWS NET) team provides food insecurity outlooks for se... more The Famine Early Warning Systems Network (FEWS NET) team provides food insecurity outlooks for several developing countries in Africa, central Asia, and Central America. This study describes development of a new global reference evapotranspiration (ET0) seasonal reforecast and skill evaluation with a particular emphasis on the potential use of this dataset by FEWS NET to support food insecurity early warning. The ET0 reforecasts span the 1982–2009 period and are calculated following the American Society for Civil Engineers formulation of the Penman–Monteith method driven by seasonal climate forecasts of monthly mean temperature, humidity, wind speed, and solar radiation from the National Centers for Environmental Prediction CFSv2 model and the National Aeronautics and Space Administration GEOS-5 model. The skill evaluation, using deterministic and probabilistic scores, focuses on the December–February (DJF), March–May (MAM), June–August (JJA), and September–November seasons. The res...

Research paper thumbnail of Adult Education Facilitators Manual, (2005) Peace and Anti-Racism Education Adult Education Policy and Practice in Kenya Adult Students as Distance Education Learners:)

Research paper thumbnail of Training of Adult Educators: Institutions, Programmes and Target Groups

Research paper thumbnail of Adult Education Policy and Practice in Kenya: A Critical Policy Analysis. (Asia-pacific Bureau of Adult Education/UNESCO

Research paper thumbnail of The role of railway transportation in the economic development of East Africa

Research paper thumbnail of The mosaic of general practice bulk billing in regional Victoria

Australian Journal of General Practice, 2019

Research paper thumbnail of Burkina Faso women empowerment and welfare project

Macharia, D. G. (2007). Burkina Faso women empowerment and welfare project. Retrieved from http:/... more Macharia, D. G. (2007). Burkina Faso women empowerment and welfare project. Retrieved from http://academicarchive.snhu.edu

Research paper thumbnail of Brain Neuronal CB2 Cannabinoid Receptors in Drug Abuse and Depression: From Mice to Human Subjects

Research paper thumbnail of Functional Expression of Brain Neuronal CB2 Cannabinoid Receptors Are Involved in the Effects of Drugs of Abuse and in Depression

Annals of the New York Academy of Sciences, 2008

Major depression and addiction are mental health problems associated with stressful events in lif... more Major depression and addiction are mental health problems associated with stressful events in life with high relapse and recurrence even after treatment. Many laboratories were not able to detect the presence of CB2 cannabinoid receptors (CB2‐Rs) in healthy brains, but CB2‐R expression has been demonstrated in rat microglial cells and other brain‐associated cells during inflammation. Thus, neuronal expression of CB2‐Rs has been ambiguous and controversial, and its role in depression and substance abuse is unknown. In this study we tested the hypothesis that genetic variants of the CB2 gene might be associated with depression in a human population and that alteration in CB2 gene expression may be involved in the effects of abused substances, including opiates, cocaine, and ethanol, in rodents. Here we demonstrate that a high incidence of Q63R but not H316Y polymorphism in the CB2 gene was found in Japanese depressed subjects. CB2‐Rs and their gene transcripts are expressed in the bra...

Research paper thumbnail of The Education of Adult Refugees in Somalia

Convergence

At least 20 percent of the Somalian population are refugees, many from Ethiopia. The Refugee Adul... more At least 20 percent of the Somalian population are refugees, many from Ethiopia. The Refugee Adult Education Unit has a preliteracy phase, offering health and agricultural instruction; a basic literacy phase, teaching reading and writing; and a postliteracy/continuing education phase, enabling skill retention and reinforcement. (SK)

Research paper thumbnail of Examining the value of global seasonal reference evapotranspiration forecasts to support FEWS NET’s food insecurity outlooks

Journal of Applied Meteorology and Climatology, 2017

The Famine Early Warning Systems Network (FEWS NET) team provides food insecurity outlooks for se... more The Famine Early Warning Systems Network (FEWS NET) team provides food insecurity outlooks for several developing countries in Africa, central Asia, and Central America. This study describes development of a new global reference evapotranspiration (ET0) seasonal reforecast and skill evaluation with a particular emphasis on the potential use of this dataset by FEWS NET to support food insecurity early warning. The ET0 reforecasts span the 1982–2009 period and are calculated following the American Society for Civil Engineers formulation of the Penman–Monteith method driven by seasonal climate forecasts of monthly mean temperature, humidity, wind speed, and solar radiation from the National Centers for Environmental Prediction CFSv2 model and the National Aeronautics and Space Administration GEOS-5 model. The skill evaluation, using deterministic and probabilistic scores, focuses on the December–February (DJF), March–May (MAM), June–August (JJA), and September–November seasons. The res...

Research paper thumbnail of Adult Education Facilitators Manual, (2005) Peace and Anti-Racism Education Adult Education Policy and Practice in Kenya Adult Students as Distance Education Learners:)

Research paper thumbnail of Training of Adult Educators: Institutions, Programmes and Target Groups

Research paper thumbnail of Adult Education Policy and Practice in Kenya: A Critical Policy Analysis. (Asia-pacific Bureau of Adult Education/UNESCO

Research paper thumbnail of The role of railway transportation in the economic development of East Africa

Research paper thumbnail of The mosaic of general practice bulk billing in regional Victoria

Australian Journal of General Practice, 2019

Research paper thumbnail of Burkina Faso women empowerment and welfare project

Macharia, D. G. (2007). Burkina Faso women empowerment and welfare project. Retrieved from http:/... more Macharia, D. G. (2007). Burkina Faso women empowerment and welfare project. Retrieved from http://academicarchive.snhu.edu

Research paper thumbnail of Brain Neuronal CB2 Cannabinoid Receptors in Drug Abuse and Depression: From Mice to Human Subjects

Research paper thumbnail of Functional Expression of Brain Neuronal CB2 Cannabinoid Receptors Are Involved in the Effects of Drugs of Abuse and in Depression

Annals of the New York Academy of Sciences, 2008

Major depression and addiction are mental health problems associated with stressful events in lif... more Major depression and addiction are mental health problems associated with stressful events in life with high relapse and recurrence even after treatment. Many laboratories were not able to detect the presence of CB2 cannabinoid receptors (CB2‐Rs) in healthy brains, but CB2‐R expression has been demonstrated in rat microglial cells and other brain‐associated cells during inflammation. Thus, neuronal expression of CB2‐Rs has been ambiguous and controversial, and its role in depression and substance abuse is unknown. In this study we tested the hypothesis that genetic variants of the CB2 gene might be associated with depression in a human population and that alteration in CB2 gene expression may be involved in the effects of abused substances, including opiates, cocaine, and ethanol, in rodents. Here we demonstrate that a high incidence of Q63R but not H316Y polymorphism in the CB2 gene was found in Japanese depressed subjects. CB2‐Rs and their gene transcripts are expressed in the bra...

Research paper thumbnail of The Education of Adult Refugees in Somalia

Convergence

At least 20 percent of the Somalian population are refugees, many from Ethiopia. The Refugee Adul... more At least 20 percent of the Somalian population are refugees, many from Ethiopia. The Refugee Adult Education Unit has a preliteracy phase, offering health and agricultural instruction; a basic literacy phase, teaching reading and writing; and a postliteracy/continuing education phase, enabling skill retention and reinforcement. (SK)

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