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כתבות אחרונות מאתר 'Phys'
Phys

New study shows COVID value-added tax cut significantly boosted private consumption‎

In summer 2020, the German federal government lowered value-added tax from 19% to 16% for half a year as part of its COVID economic stimulus package. A new study, recently published in the journal Review of Economic Studies, uses survey data, data on retail purchases and an economic model to show the extent to which this measure influenced private consumption. The study found that lower-wealth households, as well as younger and middle-aged households, particularly benefited, regardless of their level of financial literacy.

05:58
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Phys

Coyotes are likely a permanent fixture on the Outer Banks of North Carolina‎

A new study reveals that coyote populations on the Outer Banks persist despite ongoing removal programs, posing a continued threat to shore-nesting birds and protected sea turtles. The study is the first in-depth assessment of coyote populations on barrier islands and has ramifications for understanding how coyotes may impact these and other barrier island ecosystems.

04:27
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Phys

Simplified framework could make products' environmental impacts easier to assess‎

Life cycle assessment is used to quantify the environmental impact of products and services and forms an important basis for political decisions. However, the necessary data is always difficult to capture completely. A study by the Paul Scherrer Institute PSI now shows that four established hybrid methods can be reduced to just two: a first step towards open-source software that could enable such analyses even without in-depth mathematical knowledge.

04:27
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Phys

Mental health app may help unemployed people find jobs, six-week trial suggests‎

Losing a job can be a life-shattering experience. And when depression complicates a job search, unemployment can become a vicious cycle. Now, a Northwestern University–led clinical trial suggests a new intervention may break that cycle: a phone app, named DRIVEN, that combines weekly self-guided mental health exercises (to reduce stress and increase motivation) with job-seeking strategies.

04:27
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Phys

A new tool makes biodiversity conservation planning more efficient and reproducible‎

ZonationR is a new tool that simplifies the use of Zonation to identify priority areas for biodiversity conservation. It brings all stages of the conservation planning analysis together in one automated and reproducible workflow and helps users systematically explore and compare alternative conservation scenarios.

04:27
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Phys

Genetic ancestry plays a key role in the migration of Cory's shearwaters‎

To what extent do genes influence the migratory routes of birds? The factors that determine the long-distance migrations of seabirds are not yet fully understood. Now, a study published in the journal Molecular Ecology reveals that, in the case of Cory's shearwater, an individual's genetic ancestry is a more significant factor in their migratory decisions than their social environment in the breeding colony.

03:14
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Phys

Earliest known compact quasar pair poses a black hole growth puzzle‎

The oldest pair of compact quasars ever observed has been found only 900 million years after the Big Bang. Scientists say there is no theoretical explanation for how the pair of actively feeding black holes grew so massive at such an early time in the history of the universe. The pair of quasars has been given the Hawaiian nickname Nāpōwawāʻenakaulua.

03:14
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Phys

New organic iron-sulfur framework boosts photosynthesis and carbon fixation‎

Iron-sulfur clusters are ancient protein cofactors that are essential for electron transport, enzyme catalysis and photosynthesis. However, their sensitivity to oxygen and inherent instability have long hindered their practical application.

03:14
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Phys

How ripples in space-time can reveal new exoplanets‎

The LISA (Laser Interferometer Space Antenna) observatory, now in development, will detect gravitational waves, the tiny ripples in space-time caused by orbiting masses. Now two studies led by NASA astrophysicists show in new detail how LISA could reveal a new and unique population of exoplanets—worlds beyond our solar system—throughout our galaxy.

03:14
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Phys

European eels transmit a herpesvirus through bites, revealing another route for fish infections‎

Contrary to what was previously believed, viruses infecting fish are not transmitted exclusively through water acting as an abiotic vector. A team of researchers from the University of Liège has demonstrated that a virus affecting European eels can spread very efficiently through biting during aggressive interactions between individuals.

03:14
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