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Insights into global diatom distribution and diversity in ...

2016-3-15  Amaral-Zettler et al. first used the V9 region to assess general patterns in protistan diversity. They suggested that this region has the potential to assist in uncovering novel diversity in microbial eukaryotes. In the current study, we explored diatom distribution and diversity using this short (∼130 base pairs) hypervariable V9 region.

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The global distribution of ecosystems in a world without ...

2004-11-12  Total plant biomass increases with temperature, for example increasing from 650 g m −2 in Arctic tundra to 8300 g m −2 in boreal forests to 26 700 g m −2 in temperate forests (Chapin et al., 2002). Here we argue that several of the world's major biomes owe their distribution and ecological properties to

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Global distribution of microplastics and its impact on ...

2020-5-7  Microplastics are the major environmental health hazards spotted in almost all the marine habitats and biota of world. The earlier research on microplastics have mainly focused on studying abundance and distribution as well as impacts on organisms, while the existing review articles have reviewed on any one of the above aspects or the environmental fate of microplastics. The current

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Global distribution data for cattle, buffaloes, horses ...

2018-10-30  Global data sets on the geographic distribution of livestock are essential for diverse applications in agricultural socio-economics, food security,

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Estimating the global number and distribution of maize

2021-9-1  Surprisingly, however, we know relatively little about the number and distribution of the world's farms (Erenstein et al., 2021), particularly in the developing world where data scarcity is particularly acute (Economist, 2021). Furthermore, we have no reliable statistics on

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The biomass distribution on Earth PNAS

2018-6-19  The composition of the biosphere is a fundamental question in biology, yet a global quantitative account of the biomass of each taxon is still lacking. We assemble a census of the biomass of all kingdoms of life. This analysis provides a holistic view of

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Human Population Density and Extinction Risk in the

2004-7-13  Geographic variation in both HPD and the distribution of threatened species may be confounded with net primary productivity (Balmford et al. 2001), so we included in the models a measure of actual evapotranspiration (AET) , as a proxy for primary productivity. The above calculations were all done with the Spatial Analyst extension in the ...

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Global distribution of carbonate rocks and karst water ...

2020-4-21  The final World Karst Aquifer Map (WOKAM) and geodatabase was completed in 2017 (Chen et al. 2017b). The present paper is the first detailed statistical evaluation of WOKAM at global scale, focusing on carbonate rock aquifers, because they are far more relevant in terms of water resources and regionally far more widespread than evaporite rocks.

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Global Cancer Statistics 2020: GLOBOCAN Estimates of ...

2021-2-4  Figure 3 presents the distribution of all-cancer incidence and mortality according to world region for both sexes combined and separately for men and women. For both sexes combined, one-half of all cases and 58.3% of cancer deaths are

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World Internet Users Statistics and 2021 World Population ...

2021-7-3  100.0 %. 5,168,780,607. 65.6 %. 1,331.9 %. 100.0 %. NOTES: (1) Internet Usage and World Population Statistics estimates are for March 31, 2021. (2) CLICK on each world region name for detailed regional usage information. (3) Demographic (Population) numbers are based on data from the United Nations Population Division.

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Global Cancer Statistics 2020: GLOBOCAN Estimates of ...

2021-2-4  Figure 3 presents the distribution of all-cancer incidence and mortality according to world region for both sexes combined and separately for men and women. For both sexes combined, one-half of all cases and 58.3% of cancer deaths are

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Distribution and abundance of mosquitoes in the world ...

2020-11-23  around the world, due to their ability to transmit and spread diseases to humans. For ex. In 2017, it is estimated that 219 million cases of malaria (also called malaria) occurred in the world. For this reason (Weetman, et al., 2015, Blasberg, et al., 2016, Bissinger, et al., 2014 and others) called it the most dangerous animal in the world ...

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The global distribution of ecosystems in a world without ...

2004-11-12  Total plant biomass increases with temperature, for example increasing from 650 g m −2 in Arctic tundra to 8300 g m −2 in boreal forests to 26 700 g m −2 in temperate forests (Chapin et al., 2002). Here we argue that several of the world's major biomes owe their distribution and ecological properties to

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Global distribution maps of the leishmaniases eLife

2014-6-27  There is no general consensus on how best to generate pseudo-data (Bhatt et al., 2013); however, several factors of the generation process are known to influence the predicted distribution and thus can be sources of potential bias (Phillips et al.,

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Income Inequality - Our World in Data

The world income distribution was ‘bimodal’, with the two-humped shape of a camel: one hump below the international poverty line and a second hump at considerably higher incomes. The world had divided into a poor, developing world and a developed world

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Normal Distribution in Statistics - Statistics By Jim

2018-4-30  As with any probability distribution, the parameters for the normal distribution define its shape and probabilities entirely. The normal distribution has two parameters, the mean and standard deviation. The Gaussian distribution does not have just one form. Instead, the shape changes based on the parameter values, as shown in the graphs below.

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The biomass distribution on Earth PNAS

2018-6-19  The composition of the biosphere is a fundamental question in biology, yet a global quantitative account of the biomass of each taxon is still lacking. We assemble a census of the biomass of all kingdoms of life. This analysis provides a holistic view of

more

Estimating the global number and distribution of maize

2021-9-1  Surprisingly, however, we know relatively little about the number and distribution of the world's farms (Erenstein et al., 2021), particularly in the developing world where data scarcity is particularly acute (Economist, 2021). Furthermore, we have no reliable statistics on

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Normal Distribution Examples, Formulas, Uses

2020-10-23  The normal distribution is a probability distribution, so the total area under the curve is always 1 or 100%. The formula for the normal probability density function looks fairly complicated. But to use it, you only need to know the population mean and standard deviation.

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The World Happiness Report

2020-3-20  The World Happiness Report is a publication of the Sustainable Development Solutions Network, powered by data from the Gallup World Poll and Lloyd’s Register Foundation, who provided access to the World Risk Poll. The 2021 Report includes data from the ICL-YouGov Behaviour Tracker as part of the COVID Data Hub from the Institute of Global Health Innovation.

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Mapping the Global Distribution of Livestock

2014-5-29  Livestock contributes directly to the livelihoods and food security of almost a billion people and affects the diet and health of many more. With estimated standing populations of 1.43 billion cattle, 1.87 billion sheep and goats, 0.98 billion pigs, and 19.60 billion chickens, reliable and accessible information on the distribution and abundance of livestock is needed for a many reasons.

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Global distribution of soil organic carbon – Part 1 ...

2020-6-5  World Soil Database (HWSD; FAO et al., 2012) to earlier spatial databases. The HWSD was the latest and most de-tailed inventory at the global scale when this study was be-gun and is still widely used as an international reference (e.g., Wieder et al., 2014; Yan et al., 2014) Next, we de-scribe the adjustments, especially those of BDs of organic

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Normal Distribution in Statistics - Statistics By Jim

2018-4-30  As with any probability distribution, the parameters for the normal distribution define its shape and probabilities entirely. The normal distribution has two parameters, the mean and standard deviation. The Gaussian distribution does not have just one form. Instead, the shape changes based on the parameter values, as shown in the graphs below.

more

Normal Distribution Examples, Formulas, Uses

2020-10-23  The normal distribution is a probability distribution, so the total area under the curve is always 1 or 100%. The formula for the normal probability density function looks fairly complicated. But to use it, you only need to know the population mean and standard deviation.

more

Reversal of Fortune: Geography and Institutions in the ...

WORLD INCOME DISTRIBUTION* DARON ACEMOGLU SIMON JOHNSON JAMES A. ROBINSON Among countries colonized by European powers during the past 500 years, those that were relatively rich in 1500 are now relatively poor. We document this reversal using data on urbanization patterns and population density, which, we ...

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9 Real Life Examples Of Normal Distribution – StudiousGuy

2. Rolling A Dice. A fair rolling of dice is also a good example of normal distribution. In an experiment, it has been found that when a dice is rolled 100 times, chances to get ‘1’ are 15-18% and if we roll the dice 1000 times, the chances to get ‘1’ is, again, the same, which averages to 16.7% (1/6).

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CO2 emissions - Our World in Data

To help us understand the global distribution of per capita emissions and population, we have visualized global CO 2 emissions by (1) World Bank income group and (2) by world region. The world’s total CO 2 emissions 9 are shown on the basis of two axes: the height of the bar (y-axis) is the average per capita CO 2 emissions and the length of ...

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Global Extreme Poverty - Our World in Data

2017-3-27  These estimates, explained in detail in two related background papers (Newhouse et al. 2016 and Castaneda et al. 2016) 27 are consistent with the official World Bank poverty figures published in Povcal and the World Development Indicators, but they are disaggregated by key demographic characteristics such as age and educational attainment.

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The Size and Distribution of the World’s Christian ...

2012-3-8  The number of Christians around the world has nearly quadrupled in the last 100 years, from about 600 million in 1910 to more than 2 billion in 2010. But the world’s overall population also has risen rapidly, from an estimated 1.8 billion in 1910 to 6.9 billion in 2010. As a result, Christians make up about the same portion of the world’s ...

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(PDF) Extinction Risk Assessment of the World's Seagrass ...

ues to decline in many parts of the world (Waycott et al., 2009). Some species of Least Concern may be locally threatened, but their population decline was estimated to be well below the IUCN threa-

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