Organic farmers and poultry farmers increase

The number of farms continued to decline in 2019. The agricultural production area has also continued to shrink. In contrast, more and more farmers are producing organically on more and more land. Graubünden continues to be a pioneer in this respect.

Spurred by the success of organic production, beef production gained in importance, analogous to previous years, shows a recent survey by the Swiss Federal Statistical Office FSO. (Image: Unsplash)

On average, 16 percent of agricultural land in Switzerland is managed by organic farms. In the case of legumes, organic production already accounts for 29 percent of the cultivated area, and for vegetables 21 percent. Organic viticulture, on the other hand, is below average with 10 percent of the vineyard area.

Last year, 50,038 farms were registered in Switzerland, 814 fewer than in the previous year. They farmed a total of 1,043,729 hectares, 1247 hectares less than in 2018. The decline is solely at the expense of conventionally producing farms.

In contrast, the number of organic farms increased by 252 to 7284. Together, they manage 170,007 hectares, 8986 hectares more than in 2018. This figure does not include summer pastures.

Graubünden remains the only canton where organic farms are in the majority: 1305 organic farms cultivate 36,889 hectares, while 945 conventionally producing farms cultivate 19,288 hectares. Bern and Vaud show the largest increase with 39 and 37 more organic farms, respectively. The organic area increased in both cantons by 1227 and 1835 hectares.

Excerpt from the press release of the Swiss Federal Statistical Office FSO

Less bread wheat and sugar beet
In 2019, the majority of agricultural land (UAA) comprised natural meadows and pastures (605 700 ha or 58% of UAA). Arable farming was practiced on 398 800 hectares (38% of LN). The
other areas (38 200 ha; 4% of the LN) consisted, among others, of vineyards (13 400 ha) and orchards (7000 ha).

The crops developed differently in 2019. The area under bread wheat (73 600 ha) decreased by 2.8%, and that under sugar beet shrank by another 1000 hectares in 2019 to 17 600 hectares. The area under vegetables also decreased (11 900 ha; -2.1%) after growing for several years. In contrast, sunflower cultivation increased in 2019 (5900 ha; +9.6%).
Areas under oats (1700 ha, +5.2%) and spelt (5700 ha, +6%) also grew particularly strongly. Some niche crops such as millet and sorghum, hemp and lentils have also increased to
on the rise.

Organic farming is now an integral part of Swiss agriculture and is practiced on 16% of the land. The organically farmed areas account for 21% in the case of vegetables, for
legumes 29% and for vines 10%. Organic sugar beets, on the other hand, are not very common, with only 1%.

Fewer and fewer dairy cows and pigs, more poultry
As in previous years, cattle numbers continued to decline in 2019 (-1.2%). This trend was particularly pronounced for dairy cows (554,600 head, -1.7%). Since 1999, the
Dairy cow herds decreased by 19%, the number of breeding farms also decreased (-47%).

Spurred by the success of organic production, beef production gained importance analogously to previous years: the number of suckler cows increased by 2.2%. Their numbers tripled within 20 years (1999: 41 200; 2019: 128 300). In the field of pork production, both the number of producers (5800; -5.7%) and animal stocks (-4.1%) decreased.

Poultry farming recorded an overall upswing in 2019 (+2.5%). Due to increasing demand, the number of laying hens increased by 5.3% compared to 2018. 18% of which are raised under
bred with an organic label. In contrast, the number of fattening poulets remained stable year-on-year. Sheep and goat numbers also remained virtually unchanged in 2019. The latter are
mainly kept in the cantons of Bern, Grisons, Valais and St. Gallen. Three quarters of the dairy sheep are bred according to the rules of organic farming.

So the shift to organic production is definitely evident in meat production: the number of suckler cows increased by 2.2 percent in 2019, while the number of dairy cows decreased by 1.7 percent, according to the FSO (FSO) in a Communication.

Sisag AG uses Internet of Things for ropeway operation

Sisag AG offers control systems for ropeways. Together with the company bbv, it has developed a new platform based on the Internet of Things. This enables operators of installations in ski resorts to view all the data of their ropeways and trades.

Sisag AG from the canton of Uri is a supplier of electrical control and information systems for ropeways. (Image: sisag.ch)

Sisag AG has already presented the platform at the leading international trade fair for alpine technologies INTERALPIN. In the meantime, the platform is being implemented at three customers. These include, among others, the Bern Jungfrau Bahnen.

The project was geared to speed right from the start. The target: A first prototype was to be developed within four months to be shown at the INTERALPIN industry trade fair, the world's largest trade fair for alpine technologies. Therefore, the bbv experts developed an architecture based on Microsoft Azure according to an agile approach so that the product can be used quickly and can be continuously expanded to meet further requirements.

"Without bbv, we wouldn't have been able to develop the prototype in such a short time," Arnold says, continuing, "The response at the show also showed that there is a lot of interest in SisControl."

The platform is now being implemented at three customers. These include the Bern Jungfrau Railways. There are also other interested parties, Arnold confirms. And in the future, "SisControl" will also be used in-house. "We are currently in the process of setting up an internal control center from which ropeway installations can be monitored remotely. "SisControl" is the core application here. In this way, we want to be able to react more quickly to problems at the operators. We want to offer this service as an additional service," he explains.

SisControl is based, among other things, on data collected by sensors. Wind or movement data is displayed directly to the maintenance staff. On the dashboard, the staff can also view forecasts from the weather services and projections of visitor numbers and thus take anticipatory measures. Operating data - such as condition data from sensors on components - is in turn stored for comprehensive evaluations.

And the cooperation with bbv is also to continue, Arnold confirms: "We are in contact for the development of further products." In addition, some Sisag managers recently took advantage of bbv's Academy offer, he says: "The workshop on software modernization inspired us for the future."

You can find the complete Success Story about Sisag here.

The Sisag AG

The Sisag AG from the canton of Uri is a provider of electrical control and information systems for ropeways. The company has now joined forces with Lucerne-based BBV Software Services AG (bbv) has developed a new platform based on the Internet of Things (IoT). The solution, called SisControl, allows operators of ropeways in ski resorts to view all the data from their ropeways and trades at a glance, according to a Communication

Study: Gen Z and Millennials want to store CO2-neutrally, Boomers rather not

One in three Swiss would like to be able to offset the CO2 emissions of their online purchases right in the store, a study by Digitec Galaxus shows. High-income earners and young people are particularly open to CO2 compensation offers.

Sustainable power generation: solar panels on the huge warehouse of Digitec Galaxus in Wohlen AG. (Image: Digitec Galaxus)

Even if the Corona pandemic has temporarily pushed the issue into the background, shopping is a burden on the environment. The mining of raw materials, the industrial production of products and the transport around the globe blow tons of CO2 and other pollutants into the atmosphere.

Digitec Galaxus wanted to know whether Swiss consumers would compensate for the CO2 footprint of their online consumption through a voluntary levy. The company itself plans to introduce a voluntary CO2 levy for orders at the end of May and to show transparently how much CO2 is caused by the purchase.

The online retailer commissioned the GfK market research institute to carry out a representative survey. Survey was commissioned. A total of 501 people in German-speaking and French-speaking Switzerland were surveyed.

The result: one in three Swiss residents would like to have the option of offsetting the CO2 emissions of their online purchases. Another third of the population finds such an option unnecessary or is undecided (see chart below).

 

 

Two trenches: Rösti and age

If you take a closer look at the answers, you can see two rifts. The first is the Röstigraben: German-speaking Swiss in particular would like to have a CO2 compensation option. In French-speaking Switzerland, on the other hand, only a good quarter of respondents answered that they would definitely or "rather" welcome the option of Co2-neutral shopping. Men also have a clearer opinion than women: More of them find offsetting both sensible and senseless.

The second divide is between the generations: It is mainly young Swiss people under the age of 30 and residents with a median household income of between 7,000 and 12,000 Swiss francs a month who want to reduce their ecological footprint.

 

Young and women like it high percentage

The survey participants were also asked how much they would be willing to pay if they had the option of CO2 compensation when shopping online. According to the survey, more than half of the Swiss would be willing to donate part of the value of the goods to environmental projects - even if, for 15 out of 100 respondents, it might not even be one percent of the purchase amount. A good quarter of those surveyed said that they would use the compensation option at most if it did not involve any direct costs.

Incidentally, women are much more willing to donate than men. The same applies to young Swiss people: among the under-30s, more than two-thirds would shell out money for environmental compensation. Seven percent of them would even be prepared to pay between 10 and 20 percent of the value of the goods - and one percent even more.

The stingiest are the 50- to 59-year-olds: For more than a third of those surveyed, reducing their carbon footprint is not worth a cent. The high-income earners are also big spenders: More than half of those who earn more than 12,000 Swiss francs per month in their household would donate more than one percent of the value of goods to environmental compensation.

 

 

 

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Corona: Air hygiene to reduce risk of infection

The ETH spin-off AFC deals with air hygiene and the dispersion of particles and air pollutants. Against the backdrop of the Corona crisis, the company creates individual ventilation strategies for companies based on simulations. The aim is to minimize the risk of infection.

AFC Air Flow Consulting AG was spun off from the Swiss Federal Institute of Technology Zurich (ETH) more than 20 years ago.

Due to the extraordinary situation in connection with the Corona crisis, AFC Air Flow Consulting AG is working on a new air hygiene protection concept for companies. First, the infrastructure, room occupancy and ventilation situation are analyzed. Subsequently, a ventilation strategy is developed on the basis of simulations and computational evidence.

This is intended to help reduce the risk of infection. With AFC's protection concept, businesses should be able to reopen more quickly. According to the company, higher capacity utilization is also possible without increasing the risk of infection.

In the new development, AFC will be supported by Stefan Kühn of the International Negotiation and Conflict Resolution Systems (INCS Ltd) advise.

The AFC Air Flow Consulting AG was spun off from the Swiss Federal Institute of Technology Zurich (ETH) more than 20 years ago. The company specializes in air hygiene. It deals, for example, with the dispersion of particles and air pollutants in buildings.

AFC's core competence is computer simulation, which can be used to visualize air flows. This makes it possible to assess the effectiveness of various measures on air flow and the dispersion of pollutants.

Guidebook: Effective measures for flood and backwater protection

The contents of Mall's guidebook "Backwater Protection" have been expanded to include the aspect of flood protection and are available in a 2nd edition, which now presents the entire technical spectrum of flooding and backwater issues on 36 pages.

The 2nd edition of Mall's Backwater Protection Guide is aimed at anyone personally affected by or professionally concerned with flooding and backwater hazards. (Mall Ltd.) 

The guidebook "Backflow Protection" is aimed at owners of land and buildings as well as planning offices, municipalities, tradesmen and the housing industry.

As heavy rainfall events occur more frequently and more intensively, properties are at risk in two ways: from flooding and from backwater from overloaded sewage systems. The guidebook first places the phenomenon of heavy rain in the current context of climate change; experts then explain how flooding and backwater occur, describe the options for technical and structural protection, illustrate insurance aspects and provide an overview of the applicable standards.

In addition, the guidebook explains what needs to be considered in the special case of buildings on slopes. Typical application examples round off the brochure, which is published in the specialist book series "Ökologie aktuell". It can be ordered by e-mail at info@mall.info can be ordered at the price of 15 Euro incl. VAT and plus shipping costs (ISBN 978-3-00-060966-4).

Further information on Mall's product range can be found on the Internet at www.mall.info

 

Study: Urban food systems can help the environment

A new study has examined greenhouse gas emissions and water and land use in food systems in the U.S. and India. The results are expected to help cities take action to mitigate negative impacts on the environment.

The Princeton researchers' new method, in combination with other approaches, provides a holistic picture for taking appropriate action for the global food system. (Image: Unsplash) 

Princeton University researchers have developed a framework to understand and compare urban food systems in terms of climate change, water use and land use. The results will help urban planners assess the impact of a food system and implement appropriate measures.

According to a Explanation by Anu Ramaswami, co-author of the study, the researchers found large differences in food systems both within countries and across borders. Nevertheless, they have succeeded in developing a generally applicable methodology through which the consequences of political measures on the environment can be assessed in advance.

In the study, greenhouse gas emissions as well as water and land use of the food systems of two Indian and two American metropolitan regions were examined. These are Delhi and Puducherry on the one hand and New York and Minneapolis on the other. With regard to the two American cities, it has been shown that a change in the dietary habits of the inhabitants, in which meat is replaced by lentils and vegetables, would lead to a 34 percent reduction in greenhouse gas emissions.

In India, on the other hand, rice cultivation is a key contributor to emissions. Replacing rice with wheat would have a sustainable impact on the footprint of both Delhi and Puducherry.

To deal with food waste 

In turn, if food waste management were improved, this would have a positive effect for all four cities. The measures needed to achieve this, however, would be different in all four metropolitan areas. An increase in agriculture, on the other hand, whether using conventional or vertical methods, would have only a minor impact, according to the statement.

The research now provides a method for assessing the environmental impact of food system policies, says co-author Dana Boyer. However, the many differences in food systems must also be taken into account. These would exist in terms of culture, health and also equity.

Yova can grow further with fresh capital

Zurich-based start-up Yova has raised over four million Swiss francs in a financing round that has just been completed. This paves the way for expansion into other European countries.

Yova
"Yova combines an impact investing approach with extensive automation," explains Tillmann Lang, CEO and co-founder of Yova (center).

Yova can open up new markets with its sustainable investment products. In a financing round that has just been completed, the Zurich-based start-up has received more than CHF 4 million. This clears the way for the fintech company to enter other European countries.

Following strong growth in German-speaking Switzerland and the move into French-speaking Switzerland planned for the end of April, the focus of European expansion in the second half of the year will be on Germany as the third market. After that, Yova plans to become active in other countries.

"Entering the German market will further accelerate our business development. We are in cooperation talks with various financial service providers and insurance companies, as they are increasingly feeling the increased demand for sustainable, transparent investment products from customers," explains Yova co-founder and CEO Tillmann Lang in a media release.

Strong partners 

Yova will "not only come out of the current crisis in good shape," but will "substantially grow its business in the near future," says investor Carole Ackermann, a member of the board of directors at Alliance Switzerland and BKW, her commitment. Besides her belong among others WIVenture, the co-founder of the VZ Wealth Center, Andreas Reinhardt, the CEO of Salt, Pascal Grieder, and Eva Richterich, member of the management of Ricola, to investors.

With Yova, customers can choose from 16 topics such as climate change, renewable energy or access to education. In addition, eight exclusion criteria such as tobacco or weapons can be selected. Depending on their risk tolerance, they then receive suggestions from a mix of 400 companies in which Yova invests. The mix of companies can be customized, favorites can be added from over 800 additional companies. The final portfolio consists of 30 to 40 stocks and government bonds.

Respirators for Switzerland

Protective masks are currently a rare commodity. In order to equip Switzerland with efficient protective material in the Corona crisis, Empa researchers are working on the "ReMask" project together with a nationwide team from research, healthcare and industry. New mask types as well as technologies to reuse existing protective material are being developed - for now, but also for future pandemics.

 

Protective masks are a rare commodity and yet they are only used once. (Image: Unsplash)

Swiss researchers are moving together in the Corona crisis. To ensure Switzerland's needs for protective materials, researchers from Empa, ETH Zurich, EPFL and Spiez Laboratory, together with a large number of partners from healthcare and industry, have the project "ReMask" was launched. The objectives of ReMask are to develop technologies for reuse of existing masks, domestic production of efficient protective equipment and development of alternative masks with new properties to bind and kill viruses.

ReMask's findings supported the recently formed National COVID-19 Science Task Force, whose experts advise the Federal Office of Public Health (FOPH), the crisis management team, and other federal agencies on pandemic response. One of the high-priority Task Force tasks is the effort led by Peter Wick (Empa), Sarah Tschudin Sutter (Uni Basel) and Andreas Mortensen (EPFL) to facilitate projects for the production and reuse of protective masks.

With ReMask, this multidisciplinary approach is now being implemented. The expert group "Masks" of the Science Task Force has now made a recommendation for minimum quality requirements for so-called "community masks" for the population. Based on these recommendations Empa will temporarily investigate such community masks during the current crisis situation until the relevant know-how can be transferred to an independent body.

Protective masks: three types for different purposes

 

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Photos: Unsplash/istock

 

Surgical masks (right) are designed to prevent larger droplets containing pathogens from being secreted by the wearer. They therefore protect the wearer less, since small particles can pass inside and the mask does not fit tightly to the face. On the other hand, they protect the environment from virus-containing droplets from an infected wearer.

The FFP-2 respirators are different: FFP-2 masks (left) are designed to protect the wearer from pollutants and pathogens in the air. The smallest particles that can be trapped are around 600 nanometers in size. Both types of masks are currently intended for single use only.

Third are the so-called community masks or hygiene masks, which do not fall under the certified standards of the other two mask types. The use of community masks is - as the name suggests - intended for the general population as a way to minimize the risk of transmission and thus protect the environment.

 

/documents/56164/12681608/Auswahl_para.jpg/fde14ac6-4b57-4d1d-a6c3-f6b56929f759?t=1586950074053
Empa researcher Luzia Wiesli and mechanic Jörg Gschwend have already started with the test setups for the ReMask project. Photo: Empa

 

Research projects have already been launched in the Empa laboratories to bridge short-term bottlenecks and enable the reuse of masks. This also ensures more sustainable use of material resources in the long term. Among other things, it must be clarified how the masks can be sterilized in a non-destructive manner, how they can be stored in a durable manner and how their effectiveness can be proven beyond doubt even after multiple uses.

To avoid having to use dangerous viruses for these experiments, the researchers are working with non-infectious particles that simulate what happens on the inside and outside of a mask in terms of droplet infection. "We are currently developing apparatus to achieve these simulations," says Empa researcher René Rossi from the "Laboratory for Biomimetic Membranes and Textiles" in St. Gallen.

Likewise, other properties of the masks such as air permeability (<60 Pa/cm2), splash resistance (impermeable to splash water) or filtration efficiency against small particles (filtration efficiency of 70 % for particles with a size of 1 micrometer) will be studied. The test protocols that will be developed in this process will be distributed widely to companies that manufacture masks, filters and protective equipment. "It's about a timely, nationwide effort," Rossi said. That's why they're not working with a single industry partner, but have brought the entire industry on board.

ReMask Consortium

For the ReMask project, experts from research, healthcare and industry have joined forces to provide urgently needed products, concepts and technologies to combat COVID-19 in a timely manner. At Empa, these are "Laboratory for Biomimetic Membranes and Textiles.", the "Particles-Biology Interactions Lab., the "Transport at Nanoscale Interfaces Laboratory", the "Center for X-ray Analytics. and the "Biointerfaces. Laboratory involved.
Partner: ETH Zurich, EPFL, Spiez Laboratory, University Hospital Zurich, Inselspital Bern, "Centre hospitalier universitaire vaudois" (CHUV), "Hôpitaux Universitaires de Genève" (HUG), Kantonsspital Wintertur, Spital Wallis, Regio 144 AG, Indema AG as well as 200 companies of the trade association Swiss Textiles (https://subitex.empa.ch)

ReMask's medium- and long-term goals also include the development and production of novel masks and mask components. For example, additional layers on the inside and outside of conventional masks are to improve their durability and functionality. On the inside of the masks, a water-binding layer is to bind moisture from the wearer's breath. On the outside, on the other hand, the corona virus is to be specifically blocked. It is already known that the crown-like pathogen shell is negatively charged electrically. "A coating of fibers or membranes that is positively charged would electrostatically bind the virus on the outside of the mask and thus block it," Rossi explains. The researchers also want to develop textiles with virus-killing properties. Says Rossi, "We are pursuing several approaches that can inactivate coronaviruses that land on the textile."

This builds on the knowledge acquired in the course of a previous project. Within this project of the Empa and the EPFLA mouthguard equipped with a new type of filter foil has been developed for this purpose. These new, more robust and efficient masks must also withstand the test procedures that are already being implemented for used masks.

Swiss companies will be involved in the production and functionalization of protective masks. Thus, in addition to being a research project, ReMask is also an economic development project that ensures orders for Swiss companies during the Corona crisis.

Support for start-ups

In recent years, more than half of all Swiss "deep tech" start-ups have emerged from institutions of the ETH Domain, creating new technologies, services and jobs. To ensure that the innovative and economy-boosting performance of start-ups in Switzerland is not jeopardized by the Corona crisis, the ETH Domain has recently launched a new initiative in which Empa is also involved. The "COVID-19 Start-up Task Force" is intended to support highly qualified young companies in the current crisis situation. It also uses synergies and contacts with the business experts of the "National COVID-19 Science Task Force" as well as the most important stakeholders in the Swiss start-up ecosystem.

 

Environmental Award: The nominees for 2020 have been determined

The Business Environment Award will be presented again in September. The nominated companies have already been determined. They deal, for example, with compostable clothing, remote energy or the management of food waste.

 

Nominees for the Business Environment Award include young companies as well as leading Swiss firms such as Calida. (Image: Calida)

This year, a number of innovative companies were again nominated for the Business Environment Award. This award recognizes companies that rely on innovative products, technology, services or business models and use them to protect the environment.

The nominees include, for example, the French-speaking Swiss company Kitrowhich aims to help the catering industry manage food waste. It offers an automated solution for this purpose. Furthermore, the clothing manufacturer Calida from Oberkirch LU, was nominated for a completely compostable collection made with fabric made from 100 percent cellulose. The ski boot manufacturer Heierling from Davos develops the first ski boot capable of circulation. Also the AGRO Energy Schwyz AG was nominated. It was able to convince with a district heating project with a large-scale heat storage.

The three finalists are to be announced on July 2. The winner of the environmental award will be chosen on September 17. The prize is sponsored in partnership by the Swiss Environmental Foundation as well as the association Go for impact. The jury president is former Federal Councillor Doris Leuthard.

"Switzerland needs the Business Environment Prize because it provides incentives to strive for economic success in ecological terms," Leuthard is quoted as saying in the statement. As the world champion in innovation, Switzerland has the best prerequisites to take on a pioneering role in the area of sustainable business.

The complete list of nominated companies is available on the Internet at evident.

Empa and ETH Zurich develop sensor for detection of COVID-19 virus

A team of researchers from Empa, ETH Zurich and the University Hospital Zurich has succeeded in developing a novel sensor for detecting the new coronavirus. In the future, it could be used to determine the virus concentration in the environment - for example, in places where many people are present or in hospital ventilation systems.

Especially at traffic junctions, the concentration of Covid-19 could be detected by the newly developed biosensor from Switzerland. (Image: Unsplash)

Jing Wang and his team at Empa and ETH Zurich usually work on measuring, analyzing and reducing air pollutants such as aerosols and man-made nanoparticles. But the current challenges facing the entire world are also changing the goals and strategies in research laboratories. The new focus: a sensor that can quickly and reliably detect SARS-CoV-2 - the new coronavirus.

However, the idea is not quite so far removed from the group's previous research work: Even before the COVID-19 virus began to spread, first in China and then around the world, Wang and his colleagues were researching sensors that can detect bacteria and viruses in the air. So back in January, the idea matured to use these fundamentals - and further develop the sensor to reliably identify a specific virus. The sensor is not necessarily intended to replace established laboratory tests, but it could be used as an alternative method for clinical diagnosis. And in particular, to measure the concentration of viruses in the air in real time, for example in busy places such as train stations or hospitals.

Rapid and reliable testing for COVID-19 is urgently needed to bring the pandemic under control as soon as possible. Most laboratories use a molecular method called reverse transcription polymerase chain reaction, or RT-PCR, to detect viruses in respiratory infections. This is established and can detect even tiny amounts of the viruses - but at the same time, the tests are often time-consuming.

An optical sensor for RNA samples
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The sensor uses an optical and a thermal effect to detect the COVID-19 virus safely and reliably.

Jing Wang and his team have developed an alternative test method in the form of an optical biosensor. The sensor combines two different effects to detect the virus safely and reliably: an optical and a thermal one.

The sensor is based on tiny structures of gold, so-called gold nanoislands, on a glass substrate. Artificially produced DNA sequences that match specific RNA sequences of the SARS-CoV-2 virus are applied to the nanoislands. The new coronavirus is a so-called RNA virus: its genome does not consist of DNA double strands, as in humans, animals and plants, but of a single RNA strand. The artificial DNA receptors on the sensor are therefore the complementary sequences to the unique RNA genome sequences of the virus, which can uniquely identify it.

The technology used by the researchers for virus detection is called LSPR ("localized surface plasmon resonance"). This is an optical phenomenon that occurs in metallic nanostructures: when excited, they modulate the incident light in a certain wavelength range and generate a so-called plasmonic near field around the nanostructure. When molecules dock onto the surface, the optical refractive index in this plasmonic near field changes at precisely this point. This can be measured with an optical sensor, which is located on the back of the sensor, and thus it can be determined whether the sought-after RNA strands are located in the sample.

Heat increases reliability

However, it is of course central that only those RNA strands are captured by the DNA receptor on the sensor that exactly match it. This is where a second effect comes into play: the plasmonic photothermal effect (PPT). When the same nanostructure on the sensor is excited with a laser of a specific wavelength, it produces heat.

So how does this help reliability? As already mentioned, the genetic material of the virus consists of only a single RNA strand. If this strand finds its complementary counterpart, the two combine to form a double strand - a process called hybridization. The opposite - when a double strand splits into single strands - is called melting or denaturation. This happens at a certain temperature, the melting temperature. However, if the ambient temperature is now much lower than the melting temperature, strands that are not 100% complementary to each other can also join. This can lead to incorrect test results. On the other hand, if the ambient temperature is only slightly lower than the melting temperature, only complementary strands can join. And this is exactly the result of the increased ambient temperature caused by the PPT effect.

To show how reliably the new sensor detects the current COVID-19 virus, the researchers tested it with a very closely related virus: SARS-CoV. This is the virus that triggered the SARS pandemic in 2003. The two viruses - SARS-CoV and SARS-CoV2 - differ only slightly in their RNA, making a clear distinction extremely difficult. But the experiment succeeded: "Our tests showed that the sensor can clearly distinguish between the very similar RNA sequences of the two viruses," explains Jing Wang.

At the moment, the sensor is not yet ready to measure the concentration of coronaviruses in the air at Zurich's main train station, for example. A few steps are still needed for that - such as a system that sucks in the air, concentrates the aerosols in it and isolates the RNA from the viruses. "That still needs development work," Wang says. But once the sensor is completed, the principle could be applied to other viruses - and help detect and perhaps even stop future epidemics early. (Source: Empa)

Literature:

G Qiu, Z Gai, Y Tao, J Schmitt, G A Kullak-Ublick, J WangDual-Functional Plasmonic Photothermal Biosensors for Highly Accurate Severe Acute Respiratory Syndrome Coronavirus 2 Detection; ACS Nano 2020, doi.org/10.1021/acsnano.0c02439

Corona mood barometer

comparis.ch and Marketagent.com Switzerland take the pulse of the Swiss in the Corona crisis with a weekly representative survey. One month after the start of the lockdown, they give the Swiss population a grade of "sufficient" for their behavior for the first time. For this, cabin fever shows up among the under-20s.

Swiss population receives a grade of "sufficient" for its behavior for the first time. (Image: Unsplash)

Every week since the start of the lockdown in Switzerland, the online comparison service Comparis and the market research institute Marketagent Switzerland have asked the population to judge the quality of the Corona crisis management of the following players: Government, healthcare (hospitals, doctors' offices, medical hotlines, etc.), own family, own employer, financial actors (banks, insurance companies, national bank, etc.) army and Swiss population. Over the Easter weekend, respondents rated the behavior of the Swiss population as sufficient for the first time. 

Behavior of the population is also accepted by younger people for the first time 

The Swiss population has improved from a score of 3.8 to 4.0 in four weeks (grading scale 1 to 6). For the first time, the population's behavior is also accepted by younger people. Those aged 40 to 49 gave a 4.0. The under-20s were particularly harsh a month ago: their rating has risen from 3.3 a month ago to 3.9 nonetheless. Among 30- to 39-year-olds, the rating also rose to 3.9 (from 3.4). 

"It is possible that the current positive development in infection figures shows the population how much they have achieved with their behavior and contributes to a more positive evaluation of their own behavior," says Liane Nagengast, market researcher at Marketagent Switzerland. 

Half of respondents give their employer good to very good marks

Employers across all generations may not have been able to improve their score of 4.7 since the last survey. But the proportion of people who gave their own employer a grade of "good" to "very good" has risen more sharply than in any other category since the lockdown began - from 41.1 to 48.9 percent. This is another significant increase of 7.8 percentage points.

The German-speaking Swiss have now overtaken those in Ticino in terms of satisfaction with their employer. Here, 51.5 percent of respondents gave their employers marks between 5 and 6 over the Easter period (7.6 percentage points more than in the first survey). In Ticino, meanwhile, the proportion fell slightly since last week from 52 to 48.9 percent.

"Small and medium-sized enterprises are the backbone of the Swiss economy. Their manageable size allows them to react quickly to new challenges, adapt processes accordingly and deploy staff in the best possible way. In combination with the short-time work scheme and the quickly granted crisis loans by the federal government, the Swiss economy is doing very well in international comparison," observes Comparis financial expert Frédéric Papp. The key, however, is an early but careful exit from the lockdown. This is because the "trade, transport and hospitality" sector in particular is threatened by massive losses in value creation due to the loss of final demand of up to 25 percent*. "Losses of this magnitude will lead to further layoffs," says Papp.  

Camp fever among teenagers

After weeks without a fixed school or apprenticeship structure at home, the fourth survey reveals that teenagers are suffering from cabin fever. Family crisis management still tops the rankings, along with that of health care, with an overall rating of 5.2. But among 15- to 19-year-olds, the percentage of respondents who rated their own family as "good" to "very good" plummeted by a whopping 12.8 percentage points last week to just 65.5 percent. That's lower than any time during the entire survey period. The teenage group gave their own family a total rating of 4.9 in the Easter week (after 5.1 in the previous week).

www.comparis.ch

Climate Foundation: Support for climate protection continues to grow

The Swiss Climate Foundation experienced another record year in 2019. The foundation supported almost 170 climate protection projects last year, with a total of almost 4.3 million Swiss francs. The amount of funding granted has thus grown again compared to the previous year - a groundbreaking signal for climate protection in Switzerland and Liechtenstein.

Switzerland has ten years to halve its greenhouse gas emissions compared to 1990. Picture: Lake Oeschinen above Kandersteg. (Image: Reportair.ch / Niklaus Waechter)
In 2019, the Swiss Climate Foundation supported nearly 170 climate protection projects of SMEs in Switzerland and Liechtenstein, with almost 4.3 million Swiss francs. This is almost 18 percent more than in the previous year. One of the reasons for the growing funding amount is the renewed increase in applications for innovation projects: "Every year, we receive more high-quality funding applications for innovative climate protection projects," says Ursula Finsterwald, Vice President of the Swiss Climate Foundation. "This is a positive signal: because such innovations are an important key to achieving the climate targets."

Positive signal for climate protection

Switzerland has ten years to halve its greenhouse gas emissions compared with 1990. This is an ambitious goal that calls for innovative approaches. Approaches that are being developed by small and medium-sized enterprises, among others. SMEs are not only the pillars of the Swiss and Liechtenstein economy, but also active drivers of climate protection. In doing so, they can count on the financial support of the Swiss Climate Foundation.

Innovation lion's share

The promotion of innovative climate protection projects accounted for the lion's share in 2019: last year, the Swiss Climate Foundation invested more than CHF 3.1 million in innovation projects such as the development of intelligent glass facades (HyWin), the manufacture of new types of recycling presses for PET bottles (Revopack) or the conversion of construction site excavated material into modern building materials (Terrabloc) was invested. Support for projects in the field of energy efficiency has also increased:

For the first time in 2019, the Swiss Climate Foundation has distributed more than one million Swiss francs to SMEs that are implementing energy-saving measures in their operations - for example, replacing their windows or roof, insulating their buildings better or converting their business fleet to electric mobility. As part of the forest program, the foundation also helps rejuvenate aging forests. As a fourth pillar, the Swiss Climate Foundation provides financial support to SMEs that take advantage of energy consulting with the act Cleantech Agency Switzerland or the Energy Agency for Industry EnAW.

Together into a strong and climate-friendly future

The Swiss Climate Foundation will continue the four support programs in 2020. This is made possible by a total of 27 partner companies from Switzerland and Liechtenstein, which receive funding from the CO2-tax on fossil fuels, they get back more than they pay in. They donate this net rebate to the joint foundation out of conviction. The new CO2-Although the Climate Foundation Act for the period up to 2030 has not yet been signed and sealed, it is already clear that the functioning of the Swiss Climate Foundation makes sense and will be continued.

The foundation is currently working on renewing the partnership agreements and winning new partner companies in order to continue working together for the economy and the climate in the future.

www.klimastiftung.ch

 

 

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