Results 41 to 50 of about 23,028 (249)
Les jeux entre singularité et généricité des savoirs agro-écologiques dans un réseau d’éleveurs
Revue d'anthropologie des connaissances, 2018 The ecologisation of agriculture raises many issues about the knowledge needed to support the agroecological transition, both regarding their modes of production and their nature, and their forms of transmission and sharing.
Nathalie Girard, Danièle Magda
doaj +1 more source
Clinical Correlates of Anxiety and Depression After Diagnosis of a Pediatric Brain Tumor
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background The prevalence and clinical correlates of symptoms of anxiety and depression in pediatric patients with brain tumors are not well described. We aimed to identify clinical characteristics that are correlated with elevated symptoms of anxiety and depression following initial diagnosis.
Bryony J. Lucas +16 more
wiley +1 more source
WorldWe investigate the impact of a country’s population happiness level and happiness inequality on the level of entrepreneurship engagement pursued by individual entrepreneurs in that country.
Fan Jia, André van Stel, Ying Zhang
doaj +1 more source
Kinematics and singularity analysis of UR5 robot
Journal of Hebei University of Science and Technology, 2019 In order to solve the problem that the UR5 robot coordinate system established by the user is inconsistent with the manufacturer's, and the data related to the force, angular velocity, angular acceleration are difficult to be directly used, based on the ...
Fuxiang ZHANG, Yang ZHAO
doaj +1 more source
Investigation on the Singularities of Some Singular Integrals
Computer Modeling in Engineering & Sciences, 2011 In a boundary element method, the treatment of all the possible singular integrals is very important for the correctness and accuracy of the solutions. Generally, the directional derivative of a weakly singular integral is computed by an integral in the sense of Cauchy principal value if the directional derivative of the weakly singular integral kernel
Yan, Zai You, Zhang, Qiang
openaire +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
On the Links of Simple Singularities, Simple Elliptic Singularities and Cusp Singularities
Demonstratio Mathematica, 2015 Abstract This is a survey article about the study of the links of some complex hypersurface singularities in ℂ3 . We study the links of simple singularities, simple elliptic singularities and cusp singularities, and the canonical contact structures on them. It is known that each singularity link is diffeomorphic to a compact quotient of
openaire +3 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
On the boundary value problems for ordinary differential equations with isolated singularity
Lietuvos Matematikos Rinkinys, 2005 We consider some two-point boundary value problems for second order o.d.e. with strong singularity. The asymptotics of the solutions at the singular point are given. The existence and uniqueness of the solutions of those problems are prooved.
Kristina Aldošina, Stasys Rutkauskas
doaj +1 more source
Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target
FEBS Letters, EarlyView.This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz +5 more
wiley +1 more source