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Gilbert Herdt is Director of the Program in Human Sexuality Studies at San Francisco State University, where he is also Professor of Human Sexuality Studies and Anthropology.

The African continent is regarded as the cradle of modern humans and African genomes contain more genetic variation than those from any other continent, yet only a fraction of the genetic diversity among African individuals has been surveyed 1 . Here we performed whole-genome sequencing analyses of 426 individuals—comprising 50 ethnolinguistic groups, including previously unsampled populations—to explore the breadth of genomic diversity across Africa. We uncovered more than 3 million previously undescribed variants, most of which were found among individuals from newly sampled ethnolinguistic groups, as well as 62 previously unreported loci that are under strong selection, which were predominantly found in genes that are involved in viral immunity, DNA repair and metabolism. We observed complex patterns of ancestral admixture and putative-damaging and novel variation, both within and between populations, alongside evidence that population from Zambia were a likely intermediate site along the routes of expansion of Bantu-speaking populations. Pathogenic variants in genes that are currently characterized as medically relevant were uncommon—but in other genes, variants denoted as ‘likely pathogenic’ in the ClinVar database were commonly observed. Collectively, these findings refine our current understanding of continental migration, identify gene flow and the response to human disease as strong drivers of genome-level population variation, and underscore the scientific imperative for a broader characterization of the genomic diversity of African individuals to understand human ancestry and improve health. Whole-genome sequencing analyses of African populations provide insights into continental migration, gene flow and the response to human disease, highlighting the importance of including diverse populations in genomic analyses to understand human ancestry and improve health.

Rituals have always been a focus of ethnographies of Melanesia, providing a ground for important theorizing in anthropology. This is especially true of the male initiation rituals that until recently were held in Papua New Guinea. For the most part, these rituals have been understood as all-male institutions, intended to maintain and legitimate male domination. Women's exclusion from the forest space where men conducted most such rites has been taken as a sign of their exclusion from the entire ritual process.Women as Unseen Charactersis the first book to examine the role of females in Papua New Guinea male rituals, and the first systematic treatment of this issue for any part of the world. In this volume, leading Melanesian scholars build on recent ethnographies that show how female kin had roles in male rituals that had previously gone unseen. Female seclusion and the enforcement of taboos were crucial elements of the ritual process: forms of presence in their own right. Contributors here provide detailed accounts of the different kinds of female presence in various Papua New Guinea male rituals. When these are restored to the picture, the rituals can no longer be interpreted merely as an institution for reproducing male domination but must also be understood as a moment when the whole system of relations binding a male person to his kin is reorganized. By dealing with the participation of women, a totally neglected dimension of male rituals is added to our understanding.

Rituals have always been a focus of ethnographies of Melanesia, providing a ground for important theorizing in anthropology. This is especially true of the male initiation rituals that until recently were held in Papua New Guinea. For the most part, these rituals have been understood as all-male institutions, intended to maintain and legitimate male domination. Women's exclusion from the forest space where men conducted most such rites has been taken as a sign of their exclusion from the entire ritual process.Women as Unseen Characters is the first book to examine the role of females in Papua New Guinea male rituals, and the first systematic treatment of this issue for any part of the world. In this volume, leading Melanesian scholars build on recent ethnographies that show how female kin had roles in male rituals that had previously gone unseen. Female seclusion and the enforcement of taboos were crucial elements of the ritual process: forms of presence in their own right.Contributors here provide detailed accounts of the different kinds of female presence in various Papua New Guinea male rituals. When these are restored to the picture, the rituals can no longer be interpreted merely as an institution for reproducing male domination but must also be understood as a moment when the whole system of relations binding a male person to his kin is reorganized. By dealing with the participation of women, a totally neglected dimension of male rituals is added to our understanding.

Results from an 25 regional climate model simulations from the Coordinated Regional Downscaling Experiment Africa initiative are used to assess the projected changes in temperature and precipitation over southern Africa at two global warming levels (GWLs), namely 1.5 °C and 2.0 °C, relative to pre-industrial values, under the Representative Concentration Pathway 8.5. The results show a robust increase in temperature compared to the control period (1971-2000) ranging from 0.5 °C-1.5 °C for the 1.5 °C GWL and from 1.5 °C-2.5 °C, for the 2.0 °C GWL. Areas in the south-western region of the subcontinent, covering South Africa and parts of Namibia and Botswana are projected to experience the largest increase in temperature, which are greater than the global mean warming, particularly during the September-October-November season. On the other hand, under 1.5 °C GWL, models exhibit a robust reduction in precipitation of up to 0.4 mm day−1 (roughly 20% of the climatological values) over the Limpopo Basin and smaller areas of the Zambezi Basin in Zambia, and also parts of Western Cape, South Africa. Models project precipitation increase of up to 0.1 mm day−1 over central and western South Africa and in southern Namibia. Under 2.0 °C GWL, a larger fraction of land is projected to face robust decreases between 0.2 and 0.4 mm day−1 (around 10%-20% of the climatological values) over most of the central subcontinent and parts of western South Africa and northern Mozambique. Decreases in precipitation are accompanied by increases in the number of consecutive dry days and decreases in consecutive wet days over the region. The importance of achieving the Paris Agreement is imperative for southern Africa as the projected changes under both the 1.5 °C, and more so, 2.0 °C GWL imply significant potential risks to agricultural and economic productivity, human and ecological systems health and water resources with implied increase in regional water stresses.

We posit that household decision-making over fertility is characterized by moral hazard since most contraception can only be perfectly observed by the woman. Using an experiment in Zambia that varied whether women were given access to contraceptives alone or with their husbands, we find that women given access with their husbands were 19 percent less likely to seek family planning services, 25 percent less likely to use concealable contraception, and 27 percent more likely to give birth. However, women given access to contraception alone report a lower subjective well-being, suggesting a psychosocial cost of making contraceptives more concealable.

Rural economies in many developing countries are characterized by a lean season in the months preceding harvest, when farmers have depleted their cash and grain savings from the previous year. To identify the impacts of liquidity during the lean season, we offered subsidized loans in randomly selected villages in rural Zambia. Ninety-eight percent of households took up the loan. Loan eligibility led to increases in on-farm labor and agricultural output, driving up wages in local labor markets. Larger effects for poorer households suggest that liquidity constraints contribute to inequality in rural economies.

It is 1979. The first Commonwealth Heads of Government Summit on African soil is due to take place in Zambia, graced by Queen Elizabeth herself. Barely a week before this much anticipated event, a white British couple, Henry and Laura Hinckley, are brutally killed on their farm on the outskirts of the capital city, Lusaka. The unknown perpetrators are at large, their motive unclear. Fearing a media backlash, the British government applies pressure on the Zambian authorities to bring the culprits to book, threatening to cancel the Queen's trip altogether - a move that would result in huge embarrassment for the Zambian government. Detective Maxwell Chanda, head of the Special Crimes Investigative Unit, is the man tasked with leading the investigation. He is a wise, steady hand, but will he be able to piece together the seemingly disparate evidence in just five days? Will he be able to hold firm under the intense political pressure which insists on putting expediency above accuracy?Five Nights Before the Summit offers a rich tapestry of context and character in a story that engages the reader in the pursuit of justice.

The link between energy use, social and environmental well-being is at the root of critical synergies between clean and affordable energy (SDG7) and other Sustainable Development Goals (SDGs). Household-level quantitative energy analyses enable better understanding regarding interconnections between the level and composition of energy use, and SDG achievement. This study examines the household-level energy footprints in Nepal, Vietnam, and Zambia. We calculate the footprints using multi-regional input-output with energy extensions based on International Energy Agency data. We propose an original perspective on the links between household final energy use and well-being, measured through access to safe water, health, education, sustenance, and modern fuels. In all three countries, households with high well-being show much lower housing energy use, due to a transition from inefficient biomass-based traditional fuels to efficient modern fuels, such as gas and electricity. We find that households achieving well-being have 60%-80% lower energy footprint of residential fuel use compared to average across the countries. We observe that collective provisioning systems in form of access to health centers, public transport, markets, and garbage disposal and characteristics linked to having solid shelter, access to sanitation, and minimum floor area are more important for the attainment of well-being than changes in income or total energy consumption. This is an important finding, contradicting the narrative that basic well-being outcomes require increased income and individual consumption of energy. Substantial synergies exist between the achievement of well-being at a low level of energy use and other SDGs linked to poverty reduction (encompassed in SDG1), health (SDG3), sanitation (SDG6), gender equality (SDG5), climate action and reduced deforestation (SDG 13 and SDG15) and inequalities (SDG10).

The controversy over how much to charge for health products in the developing world rests, in part, on whether higher prices can increase use, either by targeting distribution to high-use households (a screening effect), or by stimulating use psychologically through a sunk-cost effect. We develop a methodology for separating these two effects. We implement the methodology in afield experiment in Zambia using door-to-door marketing of a home water purification solution. We find evidence of economically important screening effects. By contrast, we find no consistent evidence of sunk-cost effects.