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Effects of shale gas development on water quality: experiences from the Marcellus Shale

The impact of shale gas development on surface water quality has been explored in a recent study. Focusing on the Pennsylvania portion of the Marcellus Shale formation (which stretches from West Virginia to the Canadian border), the researchers conclude that shale gas wells and the treatment of shale gas extraction waste have measurable impacts on downstream surface water quality.




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Groundwater extraction for agriculture increases salt levels in Spanish coastal wetland

Around 20% of all species found in a Spanish coastal wetland could be affected by increasingly salty water as seawater intrudes into the groundwater system as a result of groundwater being withdrawn to irrigate crops. This is the conclusion of a recent study which used a Life Cycle Impact Assessment approach to characterise the ecological damage in the wetland as a result of changes in groundwater consumption.




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Female fish swap sex in polluted, low-oxygen water

Hypoxia – low levels of dissolved oxygen – can cause genetically female fish to develop into males, new research has found. Hypoxia in aquatic environments is often the result of eutrophication, which is caused by pollution from human activities. The findings suggest that hypoxia could cause fish populations to collapse, with consequences for entire ecosystems.




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Exploring interlinked drivers of human migration in the context of environmental change

A framework on the effects of environmental change on human migration has been developed by researchers. It makes clear that environmental change can influence migration directly but also indirectly through impacts on economic, social and political factors. The framework can be used to guide further research, evaluate policy options, or develop predictions for migration under global change, say the researchers.




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Rapid and significant sea-level rise expected if global warming exceeds 2°C, with global variation

The world could experience the highest ever global sea-level rise in the history of human civilisation if global temperature rises exceed 2 °C, predicts a new study. Under current carbon-emission rates, this temperature rise will occur around the middle of this century, with damaging effects on coastal businesses and ecosystems, while also triggering major human migration from low-lying areas. Global sea-level rise will not be uniform, and will differ for different points of the globe.




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Food waste: a reduction of up to 50% could reduce EU household expenditure and environmental impact

As the global population increases, it is increasingly urgent that policymakers and other actors facilitate feasible, sustainable solutions to the issue of food waste. This study explored the market effects of reducing household food waste within the EU. The researchers found that reductions of up to 50% by 2030 would lead to household cost savings, a shrinking agri-food sector, a mild negative macroeconomic impact and desirable reductions in environmental pressures, such as greenhouse gas emissions, land use and water abstraction.




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Google purged 2.7 billion bad ads in 2019, Covid-19 fake ads next target

Google blocked and removed 2.7 billion bad ads more than 5,000 bad ads per minute and suspended nearly 1 million advertiser accounts for policy violations, the company announced on Thursday.




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'Significant' increase in cybercrime against women during lockdown: Experts

There has been a significant increase in cybercrime against women, especially sextortion, during the COVID-19-induced lockdown with "caged criminals" targeting them online, say experts.




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Facebook expands Community Help feature for COVID-19 efforts

Facebook has announced to expand its Community Help feature as part of COVID-19 efforts which will help people offer help to those affected by the new coronavirus pandemic, as well as donate to nonprofit organisations.




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View: Big data - Next year will see a big shift in big tech

The short point is that data protection is not just about Aadhaar.




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How an Indian Tech startup helped brands execute their IPL campaigns

For the recent IPL season, Roanuz partnered with various brands and offered their product to run IPL campaigns, key ones being Zomato, RCB, and Book My Show.




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Key to success in data science: Domain expertise

A passion for data is a prerequisite to pursue a career in data science — datasets should instantly inspire you to infer, analyse and visualise information.




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India phone exports more than doubled on-year to 3.6 crore units in FY19-20

“We have attracted interest from companies such global giant Samsung and Chinese OEMs in the mobile phone segment coupled with the right set of incentives for them,” said Faisal Kawoosa, founder and chief analyst, TechArc. “The mass domestic market, which was underpenetrated for long, has provided an opportunity to these players to address local demand as well as set-up base here,” he added.




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Flipkart starts taking orders for mobile phones, expect deliveries from April 20

While the coronavirus lockdown is set to be lifted to May 3, you can now buy mobile phones on Flipkart.




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Experts see unhealthy angle in Aarogya Setu order

Tech lawyers say enforcement violates SC's 2017 privacy ruling and IT Act, which emphasises consent, proportionality & purpose limitation




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IoT may expose connected cars, smart healthcare systems to security risks: Analyst

Internet of Things (IoT) technology can expose connected cars and smart healthcare systems to a lot of security threats, research analyst Satyajit Sinha said on Tuesday while presenting a webinar for ETTelecom.




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Google invests $670 million to expand its data centre in Finland

The new construction will add to Google’s existing data-centre complex in Hamina on the south coast of Finland.




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Data centres may prove to be the next big opportunity in India

From big businesses to real estate companies to global technology firms, everybody is talking of setting up data centres or of making aggressive expansions. Priyanka Sangani delineates the new trend.




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Edge datacenters the next big thing in India: CTO and MD, NAM, Datacenter Dynamics

While Edge data centers will be providing an array of services independently, a more centralized data center can be backing them up with cloud services and analytics.




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How born in cloud Vistara manages existing flight sectors, adds new ones

Ravinder Pal Singh, Chief Information and Innovation Officer at Vistara is leveraging the power of multiple technologies ranging from AI, Robotics, SATCOM, Bigdata (Science) and Blockchain to enhance the airline's critical business functions.




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The importance of social and political context for classifying ecosystem services

It is important to have a single definition of 'ecosystem services', but a single classification scheme for services is not appropriate, according to researchers. There are many contexts in which ecosystem services can be used and the context should help to determine which classification scheme is the most appropriate for decision making.




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Biodiversity benefits of organic farming could depend on context

Organic farming has often been found to have benefits for biodiversity, but the benefits can depend on the individual species and landscape in question. Research on vine farming in Italy suggests that the impact of organic methods on the number or diversity of pollinating insects may depend on local context. For example, the lack of connectivity between organic vine farms may limit benefits in some circumstances.




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One fifth of world's plants at risk of extinction

Over one fifth of all the world's plants are at risk of dying out, according to a recent report. Loss of habitats through converting natural areas to agricultural use is the largest threat to plants, affecting 33 per cent of plants assessed by this study.




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Implementing Natura 2000: Dutch and Italian experiences

A study of how the Natura 2000 network was implemented in the Netherlands and in Italy has been conducted. From this analysis, recommendations have been made to help other EU Member States implement and manage the network, which include providing local authorities with better information on and understanding of Natura 2000 and how to balance ecological, social and economic needs.




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Extreme winter warming harms Arctic plant growth

A new study has explored the effects of climate change on Arctic plants by simulating extreme winter warming events and measuring plant responses. The researchers found that considerable damage occurred to dwarf shrub species, in terms of shoot mortality, leaf and root growth.




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Eutrophication led to fish extinctions in Alps

Nutrient pollution and resulting eutrophication has caused a rapid loss of whitefish species from lakes in the European Alps, according to a new genetic and ecological study that sheds light on how these fish became extinct in Swiss lakes. The researchers suggest that diversity loss among whitefish during the last century was related to environmental changes induced by eutrophication such as changes in oxygen levels and food composition in lakes.




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Global urban expansion threatens biodiversity and carbon storage

Over the next 30 years, there is a vital need for planners to shape urban expansion to minimise the impact on biodiversity and carbon losses from land-use change, according to a recent study.




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Cost of reducing species extinction threats calculated

Reducing the extinction risk to all threatened bird species by at least one category on the IUCN Red List by 2020 would cost US$0.875 - 1.23 billion (???0.671-0.94) per year, according to a recent study. To achieve this level of support would require an additional US$0.769 ??? 1.08 (???0.59- 0.82) billion per year over and above existing conservation funding for threatened birds.




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New tool to map pollinator exposure to pesticides

As bee populations decline, exposure of pollinators to pesticides is of increasing concern. Italian research has now demonstrated that an index of exposure which accounts for insect behaviour, as well as pesticide application, provides a valuable tool for assessing the realistic risk of pesticides to pollinators.




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Biodiversity databases: language and location help explain biases

Richer countries have more resources for gathering biodiversity information, creating a biased view of the worlds' species and their distribution. However, a new study argues that there are other reasons why some countries are underrepresented in global biodiversity databases, with low numbers of English speakers, large distances from the database host and low security acting as key barriers to data collection.




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High gold prices drive expansion of mining activity in the Amazon forest of Peru

Gold mining areas in the Peruvian Amazon rainforest expanded from under 10 000 hectares in 1999 to over 50 000 hectares by 2012, and now destroys more forest than agriculture and logging combined, new research has shown. Using high-resolution satellite imaging, researchers estimated gold mining areas to be twice as large as estimated by previous studies, which did not include the combined effects of thousands of small, mainly illicit, mining operations.




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IUCN Red List criteria useful as an early warning for extinction threat

The IUCN Red List criteria perform well as an early warning system for short-lived species threatened by climate change, according to recent research. Using the Red List criteria, the study identified Assa darlingtoni, an Australian frog, as being at risk of extinction up to 85 years before a model predicted it was likely to become extinct.




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Red List Index can measure conservation organisations’ effectiveness

The IUCN’s Red List Index (RLI) of threatened species can be used to measure the effectiveness of conservation organisations. This is according to a new study which used the index to assess an organisation’s conservation impact on 17 species. Eight of these species saw improvements in their threat status, whereas 16 would have seen no improvement at all, or even deterioration, if there was no conservation action.




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Bee and wasp extinctions in UK driven by historical agricultural changes

Changes in agricultural policy and practice, such as increased intensification and fertiliser use, are responsible for many historical extinctions of pollinator populations in the UK, suggests new research. The study looked at bee and wasp extinction rates in relation to agricultural practices since the mid-19th century.




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Four of nine 'planetary boundaries' exceeded

Civilisation has crossed four of nine ‘planetary boundaries’, increasing the risk of irreversibly driving the Earth in to a less hospitable state, concludes new research. These are: extinction rate, deforestation, atmospheric CO2 and the flow of nitrogen and phosphorus.




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Presence of invasive American mink shifts the sex-ratio of the European polecat across Europe

The invasion of the American mink (Neovison vison) is linked to a shift in the adult sex ratio of the native European polecat (Mustela putorius) across its entire range, a new study has discovered. Through aggressive competition, the American mink has decreased the number of reproductive female European polecats. This is the first study to identify such an effect upon a native species across its entire range in Europe.




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Extent of plastics in the Mediterranean Sea: a growing problem

The extent of marine litter in the Mediterranean Basin has been revealed by a new study. Researchers reviewed previous studies to show that the northwest Mediterranean Sea is a hotspot for plastic debris. They found that marine litter harmed 134 species in the Mediterranean Sea and call for more to be done to manage the growing problem of debris, especially plastics, littering the Sea.




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Fin whales exposed to high levels of potentially toxic microplastics in the Mediterranean Sea

Fin whales (Balaenoptera physalus) are likely being exposed to microplastics and associated toxic additives in the Mediterranean Sea, finds new research. The research analysed levels of microplastics and biological and chemical markers of exposure in whales from the Mediterranean Sea and the comparatively pristine Sea of Cortez, off the coast of Mexico. The results suggest that the vulnerable Mediterranean fin whale may be suffering as a consequence of microplastic pollution.




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Implications of extreme floods for river ecosystems

The frequency and severity of flooding is expected to increase in the future. This study explored how these changes will affect rivers, in terms of structure as well as animal and plant life. The authors discuss the management implications of their findings and highlight areas for future research, including developing early warning systems for threats to ecosystems.




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Expansion of greenhouse horticulture in Spain seen to compromise conservation and the revitalisation of rural areas

Land-use changes in the arid south-eastern Iberian Peninsula impact on the supply of various ecosystem services that support human well-being. Research into perceptions of the rapid expansion of greenhouse horticulture and the abandonment of rural and mountainous areas has highlighted trade-offs between conservation efforts and economic development.




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BirdLife International’s ‘Important Bird and Biodiversity Areas’ well covered by Natura 2000 in Europe but potential to extend network

The coverage of ‘Important Bird and Biodiversity Areas’ (IBAs) in relation to Special Protection Areas (SPAs) for birds in the EU has been assessed in a new study. Overall, 66% of the IBA network is covered by SPAs. SPAs were found to cover 23% of the distributions of 435 EU bird species as well as 25% of the distributions of mammals, reptiles and amphibians.




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Farmers with experience of agri-environment schemes develop more wildlife-friendly habitats

Researchers have found that farmer experience, concerns and motivation influence environmental outcomes for agri-environment schemes (AES), in a study in southern England. Farmers with more environmental-management experience and/or concern for wildlife created habitats that provided more pollen and nectar for bees and butterflies and winter seed for birds. The results suggest that supporting environmental learning among farmers may increase the success of AES.




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Insights for urban planning — constructed wetlands sited near industry exposed to high levels of pollution

Constructed wetlands serve as a cost-effective and multi-purpose option for storm-water treatment in urban landscapes, offering flood protection as well as wildlife habitat. However, a new study shows that when nearby land use includes industry, wetlands can accumulate high levels of pollution and potentially become toxic to wildlife. This new piece of research offers important insights for the planning and management of wetlands.




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Vertebrate population losses and declines: Earth’s ongoing mass extinction may be more severe than previously estimated

A new study suggests that Earth’s ongoing mass extinction episode is more severe than generally perceived. Rather than focusing on the complete extinction of entire species, researchers analysed the losses and declines of populations in a sample of 27 600 vertebrate species. Population declines and losses are often a prelude to species extinctions. Researchers also conducted a more in-depth analysis of population losses between 1900–2015 in 177 mammal species. The results reveal that rates of population loss and decline in vertebrates are extremely high, even in common “species of low concern”. The data indicates that, in addition to significant species extinction rates, the Earth is experiencing a huge episode of population decline and loss, which will have a significant effect on ecosystem functioning and services. The researchers warn that the window for effective action is closing rapidly and emphasise the need for an urgent response.




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Unmanaged expansion of woody plant cover may threaten alpine flora, fauna and farmers, Spanish Pyrenees

Increases in woody plant and shrub cover render alpine livestock less efficient at using their landscape, finds a new study of the eastern Spanish Pyrenees. Changes in land use and climate will affect not only flora and fauna but also the futures of alpine farmers, says the study, placing them at a growing economic risk both throughout Europe and worldwide.




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New global information system to map the extent and fragmentation of free-flowing rivers

Free-flowing rivers (FFRs) support a complex, dynamic and diverse range of global ecosystems, and provide important economic and societal services. However, infrastructure built to use these services — most notably 2.8 million dams worldwide — has caused many rivers to become fragmented and disconnected, affecting river biodiversity and ecosystem services. This study constructed a global information system with which to map the fine-scale dynamics and fragmentation of FFRs and to determine how human pressures affect the world’s river systems.




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Repeated Indexing in MATLAB

Indexing is a popular topic I write about from time to time. Today I want to focus on what happens when there are duplicate indices.... read more >>




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Faster Indexing in Tables, datetime Arrays, and Other Data Types

Today I'd like to introduce a guest blogger, Stephen Doe, who works for the MATLAB Documentation team here at MathWorks. In today's post, Stephen discusses how to take advantage of recent performance improvements when indexing into tables. The same approach applies to many different data types. While the release notes describe the performance improvements, in today's post Stephen also offers further advice based on a simple code example.... read more >>




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Washing nanotextiles: can nanosilver escape from clothes?

New research demonstrates how nanoparticles of silver in antibacterial socks and other fabrics may be released into the environment by washing. The study suggests that the release of silver from the textiles depends to a large extent on the way the silver has been incorporated into the fabric and that producers have possibilities for minimising release.




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Are bacteria becoming more resistant after biocide exposure?

Researchers have raised concerns that an increase in the use of biocides could reduce their effectiveness and, in some cases, may lead to the development of antibiotic resistant bacteria. Standard risk assessment methods are urgently needed for the use of biocides in real-life situations, according to the scientists.