Results 21 to 30 of about 14,191,419 (302)
An alternative approach to reduce algorithm‐derived biases in monitoring soil organic carbon changes
Ecology and Evolution, 2019 Quantifying soil organic carbon (SOC) changes is a fundamental issue in ecology and sustainable agriculture. However, the algorithm‐derived biases in comparing SOC status have not been fully addressed.
Weixin Zhang +15 more
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Relativity: chronoeometric drawings
Литьë и металлургия, 2020 Based on the simplest representations, questions of relativistic compactification of reference systems with relative virtual motion, non-locality of pseudo-reference frames of world constants and Schrödinger’s thesis on the completeness of the general ...
I. O. Sazonenko, V. . I. Sazonenko
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Improvement of Hipparcos proper motions in declination [PDF]
Serbian Astronomical Journal, 2006 More than a decade elapsed after the HIPPARCOS ESA mission (ESA 1997) observations have been collected. This first astronomical satellite mission was less than 4 years long so that 1991.25 is the epoch of the HIPPARCOS Catalogue. Many other projects have
Damljanović Goran M. +2 more
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Frontiers in Environmental ScienceThe tropical dry forest (TDF) biome has undergone a diversity of severe disturbances, with resulting transformations and continued pressures making this biome type one of the Earth’s most threatened.
Natalia Mesa-Sierra +3 more
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Integrated GNSS/IMU-Gyrocompass with Rotating IMU. Development and Test Results
Remote Sensing, 2020 The paper presents the developed integrated GNSS/IMU gyrocompass which, unlike the existing systems, contains a single-axis rotating platform with two antennas installed on it and an inertial measurement unit with tactical grade fiber-optic gyros.
Gennadiy Emel’yantsev +7 more
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A Federated Reference Structure for Open Informational Ecosystems
Journal of Interactive Media in Education, 2016 The paper describes the concept of a federated ecosystem for Open Educational Resources (OER) in the German education system. Here, a variety of OER repositories (ROER) (Muuß-Merholz & Schaumburg, 2014) and reference platforms have been established in ...
Richard Heinen +4 more
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Symposium - International Astronomical Union, 1979 In order to discuss accurately the motions of the Earth in space, it is necessary to define rigorously two readily accessible reference systems. The conception and the realization of celestial absolute systems and terrestrial coordinate systems are discussed.
openaire +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations
Pediatric Blood &Cancer, EarlyView.ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan +18 more
wiley +1 more source
Геодинамика и тектонофизика, 2015 In previous studies, the northern hemisphere of the Earth is considered to be in compression while the southern one is in expansion. In this study, based on three different methods, we calculate average vertical variations of the two hemispheres from ...
Wen-Bin Shen Wen-Bin Shen +3 more
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