Results 141 to 150 of about 387,146 (299)

Dark matter effect on black hole accretion disks [PDF]

Physical Review D, Volume 106, Issue 12, article id.124034 (2022)
Comparing different dark matter (DM) models, we explore the DM influence on black hole (BH) accretion disk physics, considering corotating and counterrotating thick accretion tori orbiting a central spinning BH. Our results identify accretion onto a central BH as a good indicator of DM presence, signaling possible DM tracers in accretion physics.
arxiv   +1 more source

Observational Limits on Type 1 AGN Accretion Rate in COSMOS

, 2009
We present black hole masses and accretion rates for 182 Type 1 AGN in COSMOS. We estimate masses using the scaling relations for the broad Hb, MgII, and CIV emission lines in the redshift ranges 0 ...
Andrea Merloni, Angela Bongiorno, Anton Koekemoer, Bentz, Bentz, Bigelow, Brandon C. Kelly, Brusa, Chris D. Impey, Davies, Dietrich, Ferrarese, Fine, Gebhardt, Greene, Heng Hao, Hopkins, Jared Gabor, John P. Huchra, Jonathan R. Trump, Kaspi, Kaspi, Kelly, Kelly, Kelly, Koekemoer, Kollmeier, Kormendy, Krolik, Magorrian, Mara Salvato, Marcella Brusa, Marconi, Martin Elvis, Nick Z. Scoville, Nico Cappelluti, Onken, Onken, Patrick J. McCarthy, Richards, Richstone, Salvato, Schneider, Scoville, Shen, Silk, Soltan, Tohru Nagao, Trump, Ueda, Vanden Berk, Vestergaard, Vestergaard, Vestergaard   +53 more
core   +1 more source

Polyfunctional CD8+CD226+RUNX2hi effector T cells are diminished in advanced stages of chronic lymphocytic leukemia

Molecular Oncology, EarlyView.
CD226+CD8+ T cells express elevated levels of RUNX2, exhibit higher proliferation capacity, cytokines and cytolytic molecules expression, and migratory capacity. In contrast, CD226−CD8+ T cells display an exhausted phenotype associated with the increased expression of co‐inhibitory receptors and impaired effector functions.
Maryam Rezaeifar, Shima Shahbaz, Anthea C. Peters, Spencer B. Gibson, Shokrollah Elahi   +4 more
wiley   +1 more source

Clinical heterogeneity in a family with flail arm syndrome and review of hnRNPA1‐related spectrum

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1910-1917, December 2022., 2022
Abstract Objective Flail arm syndrome (FAS) is one of the atypical subtypes of amyotrophic lateral sclerosis (ALS). Mutations in hnRNPA1 encoding heterogeneous nuclear ribonucleoprotein (hnRNP) A1 are a rare genetic cause of ALS. Herein, marked clinical heterogeneity of FAS in a pedigree with a known hnRNPA1 variant was described to raise early ...
Xiaochen Han, Feixia Zhan, Yuxin Yao, Li Cao, Jianguo Liu, Sheng Yao   +5 more
wiley   +1 more source

PENGARUH PENUTUPAN MANGROVE TERHADAP PERUBAHAN GARIS PANTAI DAN INTRUSI AIR LAUT DI HILIR DAS CIASEM DAN DAS CIPUNEGARA, KABUPATEN SUBANG (Effect of Mangrove Vegetation Cover to the Shoreline Change and Seawater Intrusion at Downstream of Ciasem)

Jurnal Manusia dan Lingkungan, 2016
ABSTRAK Perubahan penggunaan lahan dari hutan ke penggunaan lainnya seringkali diikuti oleh penurunan fungsi tanah sebagai pengatur tata air. Penelitian ini bertujuan untuk mempelajari pengaruh tutupan mangrove terhadap perubahan garis pantai dan ...
Andi Gustiani Salim, Harris Herman Siringoringo, Budi Hadi Narendra   +2 more
doaj   +1 more source

Non-Radiative Accretion and Thermodynamics [PDF]

arXiv, 2002
It has been suggested that the laws of thermodynamics are violated by what we have called a convection-dominated accretion flow (or a 1/2-law accretion flow) -- an accretion flow characterized by a constant outflow of energy. We show that both the 1/2-law flow and the Bondi flow (also known as ADAF, advection dominated accretion flow) are ...
arxiv  

Etoposide‐induced cancer cell death: roles of mitochondrial VDAC1 and calpain, and resistance mechanisms

Molecular Oncology, EarlyView.
The complex mode of action of the topoisomerase II inhibitor etoposide in triggering apoptosis involves several mechanisms: overexpression of the mitochondrial protein VDAC1, leading to its oligomerization and formation of a large channel that mediates the release of pro‐apoptotic protein; and overexpression of the apoptosis regulators p53, Bax, and ...
Aditya Karunanithi Nivedita, Varda Shoshan‐Barmatz   +1 more
wiley   +1 more source

Vascular endothelial‐cadherin as a marker of endothelial injury in preclinical Alzheimer disease

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1926-1940, December 2022., 2022
Abstract Objective Endothelial dysfunction is an early and prevalent pathology in Alzheimer disease (AD). We here investigate the value of vascular endothelial‐cadherin (VEC) as a cerebrospinal fluid (CSF) marker of endothelial injury in preclinical AD.
Rawan Tarawneh, Rachel S. Kasper, Jessie Sanford, Chia‐Ling Phuah, Jason Hassenstab, Carlos Cruchaga   +5 more
wiley   +1 more source

Study Channel Changes and Bank Erosion in the Gamasiab River from 1958 to 2010 [PDF]

نشریه جغرافیا و برنامه‌ریزی, 2014
River channel change, such as bank erosion and accretion are natural processes in alluvial rivers. This paper aims to investigate migration and channel change plan form and effect on bank erosion and accretion done in Gamasiab River in Kermanshah ...
Mohammadhossein Rezaei Moghadam, Nooshin Pirouzi Nejad   +1 more
doaj  

Change of Density when Chaplygin gas is accreting upon a black hole [PDF]

arXiv, 2011
In this work I study the density change along the accretion and wind branches when modified Chaplygin gas is taken to be the accreting fluid. I get a high wind density very near to black hole while a low wind density far from the black hole. In modified Chaplygin gas accretion case a local minima in accretion-density is got which can be detected as the
arxiv