Results 51 to 60 of about 3,973,622 (302)

Water Vapor Spectroscopy and Thermodynamics Constrain Earth's Tropopause Temperature

AGU Advances
As Earth warms, the tropopause is expected to rise, but predictions of its temperature change are less certain. Longstanding theories employing “gray” radiation tie the tropopause temperature to outgoing longwave radiation (OLR), but this is in contrast ...
Brett A. McKim, Nadir Jeevanjee, Geoffrey K. Vallis, Neil T. Lewis   +3 more
doaj   +1 more source

Silybin Derivatives Produced by γ-Irradiation and Their Tyrosinase Inhibitory Activities

Molecules
Silybin, which belongs to the flavonolignan group, is the major component of the fruit extract of Silybum marianum (common name: milk thistle). Silybin is a medicinal compound with hepatoprotective, antioxidant, and anticancer properties.
Ah-Reum Han, Hyung Won Ryu, Chang Hyun Jin   +2 more
doaj   +1 more source

Radiation Therapy Medical Physics Review – Delivery, Interactions, Safety, Feasibility, and Head to Head Comparisons of the Leading Radiation Therapy Techniques [PDF]

, 2017
Radiation therapy uses high energy radiation to kill cancer cells. Radiation therapy for cancer treatment can take the form of photon therapy (using x-rays and gamma rays), or charged particle therapy including proton therapy and electron therapy. Within
Collins, Cielle
core   +1 more source

Radiation of photons in process of charge particle volume reflection in bent single crystal

, 2007
New type of radiation in crystals is predicted and investigated in computer simulation. It is shown that process of volume reflection of electrons and positrons in bent crystals is accomplished with high-power radiation of photons.
A.M. Taratin, I A Yazynin, J.U. Andersen, R. Medenwaldt ., V A Maisheev, V I Kotov, V.N. Baier, Yu A Chesnokov, Yu. M. Ivanov   +8 more
core   +1 more source

Expanding the use of real-time electromagnetic tracking in radiation oncology. [PDF]

, 2011
In the past 10 years, techniques to improve radiotherapy delivery, such as intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT) for both inter- and intrafraction tumor localization, and hypofractionated delivery techniques ...
Kupelian, Patrick A, Meeks, Sanford L, Shah, Amish P, Willoughby, Twyla R   +3 more
core   +1 more source

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

Molecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak, Karolina Pytlak, Sandra Jaworowska, Bogusz Kulawiak, Piotr Bednarczyk   +4 more
wiley   +1 more source

Particulate and solar radiation stable coating for spacecraft [PDF]

, 1977
A laminate thermal control coating for spacecraft comprising a layer of solar radiation stable film, a layer of particulate radiation stable film applied to the upper surface of the solar radiation stable film, and a layer of reflecting material applied ...
Slemp, W. S.
core   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Prototype solar dome designed to function as a solar calendar

Journal of Asian Architecture and Building Engineering
The experiment aimed to create a prototype of a calendar dome that shows the days of the year using solar light passing through specific holes in the dome’s covering.
Mojtaba Pourbakht, Yoshihiro Kametani
doaj   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source