Results 61 to 70 of about 82,172 (404)

The Time-dependent Supersymmetric Configurations in M-theory and Matrix Models

open access: yes, 2005
In this paper, we study the half-supersymmetric time-dependent configurations in M-theory and their matrix models. We find a large class of 11D supergravity solutions, which keeps sixteen supersymmetries.
Bin Chen   +13 more
core   +1 more source

PP-waves in AdS Gauged Supergravities and Supernumerary Supersymmetry [PDF]

open access: yes, 2004
Purely gravitational pp-waves in AdS backgrounds are described by the generalised Kaigorodov metrics, and they generically preserve 1/4 of the maximum supersymmetry allowed by the AdS spacetimes.
D. Berenstein   +11 more
core   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Morphological and topographical characteristics of posterior supernumerary molar teeth: an epidemiological study on 25,186 subjects [PDF]

open access: yes, 2014
Objectives: To investigate the prevalence , gender difference , arch , morphology and position within the arch of supernumerary molar (SM) teeth in a referred Italian Caucasian population.
Altieri, Federica   +4 more
core   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

Surgical Management of Impacted Supernumerary Tooth and Odontome under General Anesthesia in an Emotionally Immature Child: A Case Report

open access: yesIndian Journal of Dental Sciences
The disorder known as hyperdontia is characterized by an excess of teeth or teeth that appear to be added to the normal amount of teeth. With a frequency ranging from 0.1% to 3.9% in permanent dentition and from 0.3% to 1.8% in deciduous dentition, it ...
Rasleen Dua   +3 more
doaj   +1 more source

Images in Medicine Representing the Management of Mesiodens in Different Dentitions [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Mesiodens are the most common type of supernumerary teeth, typically located between the two maxillary central incisors [1]. Hereby, three cases of mesiodens in primary, mixed and permanent dentition are presented, along with a discussion of how the ...
Simron Baishya   +3 more
doaj   +1 more source

Two new charismatic Pristimantis species (Anura: Craugastoridae) from the tepuis of “The Lost World” (Pantepui region, South America) [PDF]

open access: yes, 2013
Two new colourful species of direct-developing frogs of the genus Pristimantis are described from the summit of two isolated tepuis (sandstone table mountains) in the Eastern Pantepui District of the Guiana Shield highlands. Pristimantis jamescameroni sp.
Kok, Philippe J. R.
core   +3 more sources

SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1

open access: yesFEBS Open Bio, EarlyView.
Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl   +13 more
wiley   +1 more source

Fused supernumerary kidney

open access: yesRadiology Case Reports, 2011
A partially fused supernumerary kidney with bifid ureters was diagnosed in a 35-year-old female patient using ultrasound and triple-phased computed tomography (CT). The CT also revealed two separate renal arteries supplying each of the left kidney and multiple left renal veins, forming a common trunk to drain into the inferior vena cava.
Suresh, Jaishilpa   +2 more
openaire   +2 more sources

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