Results 31 to 40 of about 1,635 (177)
Summary Mycorrhizal associations between fungi and plants are a fundamental aspect of terrestrial ecosystems. Mycorrhizas occur in c. 85% of extant plants, yet their geological record remains sparse. Rare fossil evidence from early terrestrial environments offers crucial insights into these ancient symbioses, but visualizing fossil fungi at the ...
Christine Strullu‐Derrien +7 more
wiley +1 more source
EPR and Fluorescence Spectroscopy in the Photodegradation Study of Arabian and Colombian Crude Oils
EPR and fluorescence spectroscopy were used to evaluate the degradation of crude oils of different origins that were submitted to photochemical weathering under tropical conditions. The EPR spectra obtained showed signals of the paramagnetic species: the vanadyl VO2+ ion and organic free radicals.
Carmen L. B. Guedes +6 more
wiley +1 more source
Se presentan los efectos del sismo Ismit ocurrido el 17 de agosto de 1999 sobre los cambios en la composición química de aguas termales y minerales en las zonas más afectadas de (1) Kuzuluk, (2) Bursa, y (3) Yalova/Gemlik en la zona de fallas “North ...
W. Balderer +4 more
doaj +1 more source
Vitamin D deficiency induces erectile dysfunction: Role of superoxide and Slpi
Background and Purpose Epidemiological studies suggest a relationship between vitamin D deficiency and erectile dysfunction (ED). We hypothesized that vitamin D deficiency or vitamin D receptor (VDR) knockout causes ED and analysed the underlying molecular mechanisms.
Miguel A. Olivencia +14 more
wiley +1 more source
MINFLUX nanoscopy: Visualising biological matter at the nanoscale level
Abstract Since its introduction in 2017, MINFLUX nanoscopy has shown that it can visualise fluorescent molecules with an exceptional localisation precision of a few nanometres. In this overview, we provide a brief insight into technical implementations, fluorescent marker developments and biological studies that have been conducted in connection with ...
Alexander Carsten +2 more
wiley +1 more source
Small historical museum collections can provide unexpected data points in telling the story of how climate change has impacted species. We report a (re)discovered Black‐capped Petrel (Pterodroma hasitata) from the 19th‐century Middlebury College Vertebrate Natural History collection and confirmed its late 1800s Vermont origin through a combination of ...
Oliver W. Patrick +5 more
wiley +1 more source
Mediciones de presión con el método de fluorescencia del rubí
Por sus múltiples ventajas, el uso de rubí en mediciones de presión es un tema de amplio interés en la ciencia e ingeniería actual. El procedimiento se basa en la existencia de una relación proporcional entre las condiciones de presión y temperatura ...
Juan Carlos Fallas-Chinchilla +3 more
doaj
Evaluation of Optical Properties of Different Restorative Composite Resins
Devido à exigência estética, tem-se buscado materiais restauradores que se aproximem da aparência do dente natural. Para tal, é importante conhecer as propriedades ópticas tanto das estruturas dentais quanto dos materiais restauradores.
Raquel Pachaly +3 more
doaj +1 more source
Liu et al. identify that YBX1, an m5C reader protein, is upregulated in ESCC tissues. Further, YBX1 promotes ESCC progression by stabilizing SMOX mRNA and consequently activating the mTOCR1 signaling pathway in an NSUN2‐mediated m5C modification‐dependent manner.
Liwen Liu +12 more
wiley +1 more source
Single‐cell RNA sequencing reveals inflammatory retinal microglia in experimental autoimmune uveitis
Inflammatory retinal microglia with high expression of Cd74 and Ccl5 are identified at the disease peak of experimental autoimmune uveitis (EAU) by single‐cell RNA sequencing. Targeting Cd74 and Ccl5 effectively alleviated microglial activation and disease phenotype in the EAU model .
Jiangyi Liu +9 more
wiley +1 more source

