Results 71 to 80 of about 24,316 (300)
Nongravitational forces on comets [PDF]
, 1976 Methods are presented and discussed for determining the effects of nongravitational forces on the orbits of comets. These methods are applied to short-period and long-period comets.
Marsden, B. G.
core
Advanced Science, EarlyView.Macrophage RSAD2 dually regulates CMPK2—the rate‐limiting enzyme for mitochondrial DNA synthesis—by suppressing its ubiquitination and promoting its phosphorylation via Csnk2a2 recruitment. This amplifies mtDNA production, which simultaneously activates a cGAS‐STING‐IRF3‐RSAD2 feedforward loop and the NLRP3 inflammasome, driving a self‐sustaining ...
Haomiao Yuan +16 more
wiley +1 more source
, 1964 Astronomers find evidence that comets may have been formed in about the same region of the solar system as ...
Staff,
core
Did comets kick-start life on Earth? Chemists find missing piece of puzzle [PDF]
, 2016 First paragraph: The origin of life on Earth has been a matter of intense debate throughout human history. Even today, scientists don’t know whether the molecular building blocks of life were created on Earth or whether they were brought here by comets ...
Schroeder, Christian
core
Advanced Science, EarlyView.TNFRSF19 is an epigenetically silenced regulator of mitophagy in triple‐negative breast cancer. TNFRSF19 deficiency activates the TGFBR1–SMAD3–PINK1 axis to promote mitophagy and confer doxorubicin resistance, whereas decitabine‐mediated restoration of TNFRSF19 suppresses mitophagy and enhances doxorubicin sensitivity, revealing a targetable epigenetic–
Shiyang Liu +7 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.This review summarizes the developments in field‐effect transistor (FET)‐based dual‐mode sensor platforms and what can be learned from them. It identifies charge as a crucial factor in biomolecular interactions at interfaces, outlines the challenges of hybrid systems, and highlights their benefits.
Roger Hasler +4 more
wiley +1 more source
The Great Comet and Schmidt's Comet [PDF]
Nature, 1882 THERE can be no doubt of the elongation of the nucleus of the Great Comet in the direction of the axis of the tail, in which direction it is three times as long as in a direction at right angles thereto.
openaire +1 more source
Alternative Policy Designs to Help Farmers Select Profitable Conservation Practices
Agribusiness, EarlyView.ABSTRACT Voluntary private carbon initiatives (VPCIs) promote the implementation of agricultural conservation practices that mitigate emissions of greenhouse gases (GHGs) via financial incentives to participating farmers. Simultaneously, an array of public policies supports the adoption of conservation practices through technical and financial ...
Oranuch Wongpiyabovorn +1 more
wiley +1 more source
Thermal Evolution of the Nucleus of the Comet 67P for 120 Years: Numerical Simulations
Open Astronomy, 2018 The purpose of this paper is to estimate to what temperatures and to what depth the outer layers of the cometary nuclei are heated for several dozen revolutions around the Sun, and what changes in the composition of the volatiles occur in this case. This
Rusol Andrey V., Dorofeeva Vera A.
doaj +1 more source
, 1988 The IUE was used to study comets including the first dynamically new comet to approach closer than 3 AU. Differences between old and new comets are studied. Results relevant to the nature of cometary nuclei are discussed. Identification of species in the
Ahearn, Michael F.
core