Results 41 to 50 of about 3,788,707 (345)
Continuous spectrum, point spectrum and residual spectrum of operator matrices
Linear Algebra and its Applications, 2010 AbstractLet MC denote a 2×2 upper triangular operator matrix of the form MC=AC0B, which is acting on the sum of Banach spaces X⊕Y or Hilbert spaces H⊕K. In this paper, the sets ⋂C∈B(Y,X)σc(MC),⋂C∈B(K,H)σp(MC) and ⋂C∈B(K,H)σr(MC) are, respectively, characterized completely, where σc(·) denotes the continuous spectrum, σp(·) denotes the point spectrum ...
Zhenying Wu +3 more
openaire +2 more sources
FEBS Letters, EarlyView.Metabolic dysfunction‐associated steatotic liver disease (MASLD) affects nearly one‐third of the global population and poses a significant risk of progression to cirrhosis or liver cancer. Here, we discuss the roles of hepatic dendritic cell subtypes in MASLD, highlighting their distinct contributions to disease initiation and progression, and their ...
Camilla Klaimi +3 more
wiley +1 more source
A Policy Spectrum for Spectrum Economics
Information Economics and Policy, 2009 Abstract Recent reforms to radio spectrum regulation have sparked controversy over the respective merits of two mutually exclusive liberalization regimes: property rights and commons. This debate is restrictive because it is largely incomplete and misunderstood. It is also costly in terms of opposition and delays to reforms.
openaire +3 more sources
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
Palpable Abdominal Mass is a Renal Oncocytoma: Not All Large Renal Masses are Malignant
Case Reports in Urology, 2019 A 59-year-old woman presented with abdominal pain and a palpable abdominal mass. Initial imaging revealed a 14cm solid, enhancing renal mass and suspicion for liver and bone metastases.
Sumi Dey +3 more
doaj +1 more source
Thyroid tissue in cervical lymph nodes, not always malignant
Clinical Case Reports, 2022 Thyroid tissue in cervical lymph nodes is an interesting and rare phenomenon that cannot be directly explained by embryology. Distinguishing malignant from benign thyroid tissue in cervical lymph nodes can be challenging but is essential for treatment ...
Anton Frans Gijsen +2 more
doaj +1 more source
Immune Response, Inflammation, and the Clinical Spectrum of COVID-19
Frontiers in Immunology, 2020 The current COVID-19 pandemic began in December 2019 in Wuhan (China) and rapidly extended to become a global sanitary and economic emergency. Its etiological agent is the coronavirus SARS-CoV-2.
L. Garcia
semanticscholar +1 more source
FEBS Letters, EarlyView.Toll‐like receptors (TLRs) are important in the innate immune system. This study explores the zinc‐binding ability of the TLR2 TIR domain (TLR2TIR). We found that TLR2TIR binds zinc with nanomolar affinity through its cysteine residues. Two of them, C673 and C713, are vital for receptor activation, indicating that zinc may play a role in initiating ...
Vladislav A. Lushpa +8 more
wiley +1 more source
The power of microRNA regulation—insights into immunity and metabolism
FEBS Letters, EarlyView.MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto +2 more
wiley +1 more source
PLOS ONE, 2018 Rumour is an old social phenomenon used in politics and other public spaces. It has been studied for only hundred years by sociologists and psychologists by qualitative means. Social media platforms open new opportunities to improve quantitative analyses. We scanned all scientific literature to find relevant features.
openaire +8 more sources