Results 161 to 170 of about 550,699 (320)

Conditions for the formation of anomalous tail of comet

open access: yesOpen Astronomy, 2019
The time and velocity of ejection of dust particles of anomalous tails from cometary nuclei are determined. It is revealed that some comets cause the formation of an anomalous tail is the collision of their comet nucleus with other bodies of the Solar ...
Safarov Abduljalol G.   +1 more
doaj   +1 more source

Suggestions as to the structure of the tails of comets [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
(1859). Suggestions as to the structure of the tails of comets. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 18, No. 122, pp. 479-480.
openaire   +3 more sources

HUWE1‐Mediated Degradation of MUTYH Facilitates DNA Damage and Mitochondrial Dysfunction to Promote Acute Kidney Injury

open access: yesAdvanced Science, Volume 12, Issue 13, April 3, 2025.
MutY homolog (MUTYH) protein levels are significantly decreased in the kidneys of acute kidney injury (AKI) patients. The upregulation of the E3 ligase HUWE1 mediates the degradation of MUTYH in renal tubular epithelial cells, exacerbating DNA damage in both the nucleus and mitochondria, thereby promoting AKI. Targeting the HUWE1/MUTYH pathway may be a
Yunwen Yang   +10 more
wiley   +1 more source

بررسی اثر ژنوپروتکتیو عصاره‌های آبی و متانولی اندام هوایی کرفس کوهی بر آسیب ناشی از ماده‌ی ژنوتوکسیک متیل متان سولفونات

open access: yesمجله دانشکده پزشکی اصفهان, 2013
مقدمه: تخریب DNA به دنبال تماس با عوامل توکسیک گوناگون می‌تواند سبب افزایش خطر سرطان شود. گیاه کرفس کوهی یکی از گیاهان اندمیک ایران می‌باشد که مصرف خوراکی و دارویی دارد.
Mahmoud Etebari   +3 more
doaj  

Doppler velocities in the ion tail of comet Levy 1990c [PDF]

open access: yes
We have obtained time alternating sequences of column density maps and Doppler velocity fields in the plasma tail of comet Levy 1990c.
Debi-Prasad, C.   +3 more
core   +1 more source

LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer

open access: yesAdvanced Science, Volume 12, Issue 14, April 10, 2025.
This study elucidates the mechanism underlying LINC01235 promotes clonal evolution and selection under treatment pressure by facilitating DNA replication licensing and CIN, leading to increased therapeutic resistance in HER2+ breast cancer. Targeting LINC01235‐related pathways with ATR inhibitors may be a viable strategy for clinical application ...
Qi Zhang   +18 more
wiley   +1 more source

Effects of lentiviral vectors on DNA damage of human dermal fibroblasts (HDFs) [PDF]

open access: yes, 2015
In present study we evaluated the DNA damages and cytogenetic stability of transducted and non-transducted human dermal fibroblasts (HDFs) by enhanced green fluorescent protein (eGFP) lentiviral vector using karyotyping, comet assay, and molecular ...
Abdian, Narges.   +7 more
core  

ACAT1‐Mediated ME2 Acetylation Drives Chemoresistance in Ovarian Cancer by Linking Glutaminolysis to Lactate Production

open access: yesAdvanced Science, Volume 12, Issue 14, April 10, 2025.
Chemotherapy reduces glucose transporter expression and glucose uptake in cancer cells, leading to decreased pyruvate levels. This decline prompts ACAT1‐mediated acetylation of ME2 at Lys156, enhancing ME2 activity and promoting lactate production from glutamine.
Cuimiao Zheng   +12 more
wiley   +1 more source

Time-lapse CCD imagery of plasma-tail motions in Comet Austin [PDF]

open access: yes
The appearance of the bright comet Austin 1989c1 in April-May of 1990 allowed us to test a new imaging instrument at the Joint Observatory for Cometary Research (JOCR).
Klinglesmith, Daniel A., III   +3 more
core   +1 more source

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