Results 41 to 50 of about 261,437 (315)

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

A crack-like notch analogue for a safe-life fretting fatigue design methodology [PDF]

, 2003
Various analogies have recently been proposed for comparing the stress fields induced in fretting fatigue contact situations, with those of a crack and a sharp or a rounded notch, resulting in a degree of uncertainty over which model is most appropriate ...
Ciavarella, M., M. CIAVARELLA
core   +1 more source

Emerging structures and dynamic mechanisms of γ-secretase for Alzheimer’s disease

Neural Regeneration Research
γ-Secretase, called “the proteasome of the membrane,” is a membrane-embedded protease complex that cleaves 150+ peptide substrates with central roles in biology and medicine, including amyloid precursor protein and the Notch family of cell-surface ...
Yinglong Miao, Michael S. Wolfe
doaj   +1 more source

A Notch Sweeter [PDF]

Cell, 2008
Notch is a key signaling protein mediating cell-fate decisions during development. In this issue, Acar et al. (2008) describe a new gene called rumi that is required for Notch signaling in Drosophila. This gene encodes an O-glucosyltransferase that attaches glucose sugars to serine residues in the multiple EGF domains of the extracellular region of ...
openaire   +2 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

A study of Notch signalling in developmental angiogenesis [PDF]

, 2009
Blood vessel patterning during angiogenesis is a guided process. Endothelial tip cells located at the end of vascular sprouts are important for vessel guidance.
Phng, L.-K., Phng, L-K
core  

Identification of epidermal Pdx1 expression discloses different roles of Notch1 and Notch2 in murine KrasG12D-induced skin carcinogenesis in vivo [PDF]

, 2010
Background The Ras and Notch signaling pathways are frequently activated during development to control many diverse cellular processes and are often dysregulated during tumorigenesis.
Mazur Pawel K., Radtke, Freddy, Freddy Radtke, Roland M Schmid, Schmid, Roland M., Nakhai Hassan, Grüner, Barbara M., Pawel K Mazur, Schmid Roland M., Barbara M. Grüner, Bence Sipos, Nakhai, Hassan, Jens T Siveke, Strobl Lothar J., Siveke, J.T., Mazur, P.K., Radtke Freddy, Sipos, Bence, Radtke, F., Barbara M Grüner, Zimber-Strobl Ursula, Nakhai, H., Jens T. Siveke, Sipos, B., Grüner, B.M., Schmid, R.M., Strobl, Lothar J., Grüner Barbara M., Strobl, L.J., Lothar J Strobl, Lothar J. Strobl, Zimber-Strobl, Ursula, Hassan Nakhai, Pawel K. Mazur, Roland M. Schmid, Mazur, Pawel K., Ursula Zimber-Strobl, Sipos Bence, Siveke Jens T., Zimber-Strobl, U., Siveke, Jens T.   +40 more
core   +1 more source

Fatigue life prediction of titanium alloy TA19 based on Weibull distribution and first-order reliability correction

Cailiao gongcheng
With the improvement in aeroengine performance，critical components （such as centrifugal impellers） operate under high-temperature，high-stress，and complex load conditions.
QUAN Changbiao, LIAO Mingfu, LI Jian, TANG Xiuzhi, HUANG Jia, QIN Houjun   +5 more
doaj   +1 more source

Critical Distance Default Values for Structural Steels and a Simple Formulation to Estimate the Apparent Fracture Toughness in U-Notched Conditions

Metals, 2018
The structural integrity assessment of components containing notch-type defects has been the subject of extensive research in the last few decades. The assumption that notches behave as cracks is generally too conservative, making it necessary to develop
Sergio Cicero, Juan Diego Fuentes, Isabela Procopio, Virginia Madrazo, Pablo González   +4 more
doaj   +1 more source

An Extended Finite Element Method (XFEM) Study on the Elastic T-Stress Evaluations for a Notch in a Pipe Steel Exposed to Internal Pressure

Mathematics, 2021
The work investigates the importance of the K-T approach in the modelling of pressure cracked structures. T-stress is the constant in the second term of the Williams expression; it is often negligible, but recent literature has shown that there are cases
Khadija Yakoubi, Soufiane Montassir, Hassane Moustabchir, Ahmed Elkhalfi, Catalin Iulian Pruncu, Jamal Arbaoui, Muhammad Umar Farooq   +6 more
doaj   +1 more source