Results 71 to 80 of about 4,570,937 (296)

Liquidez y rentabilidad de las Cajas Municipales de Ahorro y Crédito del Perú: Periodo 2020 – 2022

open access: yesRevista de Ciencias Sociales
Existen dos indicadores financieros que son pilares fundamentales para la sostenibilidad y el cumplimiento de los objetivos de las Cajas Municipales de Ahorro y Crédito del Perú: La liquidez y la rentabilidad.
Teresa Ruth Senmache Yrigoin   +3 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS 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

Graph Models of Automobile Gears - Kinematics

open access: yesInternational Journal of Applied Mechanics and Engineering, 2014
In the present paper, kinematical analysis of an automotive gear is described. Versatile graph based methods have been utilized for this purpose. An application of mixed, contour and bond graphs gives the same results. It allows the detection of possible
J. Drewniak, J. Kopeć, S. Zawiślak
doaj   +1 more source

Estimation of signal-to-noise ratios [PDF]

open access: yes, 1969
Statistical method estimates signal-to-noise ratios in an observed random voltage, such as the output of a telemetry receiver.
Couvillon, L. A., Jr., Gilchriest, C. E.
core   +1 more source

Meta-analysis of ratios of sample variances

open access: yes, 2015
When conducting a meta-analysis of standardized mean differences (SMDs), it is common to assume equal variances in the two arms of each study. This leads to Cohen's $d$ estimates for which interpretation is simple.
Prendergast, Luke A., Staudte, Robert G.
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS 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

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Revisión crítica de la literatura sobre el análisis financiero de las empresas

open access: yesNóesis, 2012
The analysis of financial statements by ratios has been, for decades, the traditional approach to diagnose the economic and financial situation of companies.
Salvador Aníval Ochoa Ramírez   +1 more
doaj  

The puzzle of the CNO isotope ratios in AGB carbon stars

open access: yes, 2016
Previous determinations of the oxygen isotopic ratios in AGB carbon stars were at odds with the existing theoretical predictions. We aim to redetermine the oxygen ratios in these stars using new spectral analysis tools and further develop discussions on ...
Abia, Carlos   +3 more
core   +1 more source

Weak Ratios

open access: yesFoundations of Physics
Abstract Weak values characterize a quantum system in the period of time between preparation and measurement and may lie outside the eigenvalue spectrum of the measured operator. The probability of such “superweak" values for random quantum states has been calculated and applied to Klein–Gordon and Dirac waves, where the maximal probability ...
openaire   +1 more source

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