Results 41 to 50 of about 8,121,087 (252)

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

As populações migrantes e alteridade

open access: yesRevista Aurora, 2013
Nosso propósito neste texto é refletir sobre o lugar do imigrante nas discussões que abordam a questão da alteridade, dialogando com alguns estudos recentes que atualizam o debate sobre o reavivamento das diferenças.
Giovanna Modé Magalhães
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

7+2: studying the texture of work in a centre of coordination

open access: yesTecnoscienza, 2011
Centres of coordination constitute a privileged empirical reference for STS, due to the constitutive role of the interaction between humans and technologies in this kind of settings. In this paper, we illustrate the complexity of activities in a motorway
Attila Bruni, Davide Modè
doaj   +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

Modes of ocean variability in the tropical Pacific as derived from Geosat altimetry [PDF]

open access: yes, 1994
Satellite-derived (Geosat altimetry) sea surface height anomalies for the period November 1986 to September 1989 were investigated in order to extract the dominant modes of climate variability in the tropical Pacific.
Barnett   +38 more
core   +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

MaxEnt-Based Predictions of Suitable Potential Distribution of Leymus secalinus Under Current and Future Climate Change

open access: yesPlants
Grassland degradation is a serious ecological issue in the farming–pastoral ecotone of northern China. Utilizing native grasses for the restoration of degraded grasslands is an effective technological approach.
Shimeng Zhao   +6 more
doaj   +1 more source

96-Channel on-chip reconfigurable optical add-drop multiplexer for multidimensional multiplexing systems

open access: yesNanophotonics, 2022
The multi-dimensional multiplexing technology is very promising for further increasing the link capacity of optical interconnects. A 96-channel silicon-based on-chip reconfigurable optical add-drop multiplexer (ROADM) is proposed and demonstrated for the
Zhao Weike   +14 more
doaj   +1 more source

Coexistence of single-mode and multi-longitudinal mode emission in the ring laser model

open access: yes, 2005
A homogeneously broadened unidirectonal ring laser can emit in several longitudinal modes for large enough pump and cavity length because of Rabi splitting induced gain. This is the so called Risken-Nummedal-Graham-Haken (RNGH) instability.
Carr   +25 more
core   +1 more source

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