Results 71 to 80 of about 4,503 (193)

A Large Outburst, Coma Asymmetries, and the Color of Comet 243P/NEAT

The Planetary Science Journal
Water ice is a fundamental building material of comets and other bodies in the outer solar system. Yet the properties of cometary water ice are challenging to study, due to its volatility and the typical distances at which comets are observed.
Michael S. P. Kelley, Silvia Protopapa, Dennis Bodewits, Aren N. Heinze, Youssef Moulane, Quanzhi Ye, Bryce Bolin, Simon Conseil, Tony L. Farnham, Lori Feaga, Xing Gao, Chih-Hao Hsia, Emmanuel Jehin, Shrinivas R. Kulkarni, Russ R. Laher, Tim Lister, Frank J. Masci, Josiah Purdum, Bin Yang   +18 more
doaj   +1 more source

Effects of monomer shape on the formation of aggregates from a power law monomer distribution

New Journal of Physics, 2013
The coagulation of dust aggregates is an important process in many physical systems such as the Earth's upper atmosphere, comet tails and protoplanetary discs.
J Perry, J Kimery, L S Matthews, T W Hyde   +3 more
doaj   +1 more source

Quantifying the Spatial Distribution of Series Resistance in Monolithic Perovskite/Silicon Tandem Solar Cells Using Voltage‐Dependent Photoluminescence Imaging

Small, EarlyView.
Spatially resolved series resistance in monolithic perovskite/silicon tandem solar cells is extracted using voltage‐dependent photoluminescence imaging. The method is robust against current mismatch, shunt resistance, and luminescence coupling. Even in a high‐performance 29% efficiency device, resistive losses contribute up to 1.9% absolute efficiency ...
Oliver Fischer, Anh Dinh Bui, Yan Zhu, Shuai Nie, Tanushree J. B. Nath, Yi Hui Hou, Wei Wang, Khoa Nguyen, Ary Anggara Wibowo, Jann B. Landgraf, Juliane Borchert, Florian Schindler, Heping Shen, Klaus Weber, Hieu T. Nguyen, Stefan W. Glunz, Ziv Hameiri, Daniel Macdonald, Martin C. Schubert   +18 more
wiley   +1 more source

Nanomagnetic Hyperthermia Sensitizes Gemcitabine Chemosensitivity in Pancreatic Cancer by Inhibiting HSPB1 to Amplify ACSL4‐Mediated Ferroptosis

Small, EarlyView.
ABSTRACT Pancreatic cancer, one of the most malignant solid tumors with the poorest prognosis, is commonly treated with gemcitabine (GEM)‐based systemic chemotherapy. However, chemoresistance remains a significant therapeutic challenge. Ferroptosis, a novel form of programmed cell death, has demonstrated exceptional susceptibility in chemoresistant ...
Jiaqiang Ren, Shuai Wu, Tong Su, Hugang Li, Jiachun Ding, Fan Chen, Jiantao Mo, Jie Li, Zheng Wang, Liang Han, Zheng Wu   +10 more
wiley   +1 more source

First Assessment of Genetic Damage in the Speckled Cockroach (Nauphoeta cinerea) After Consumption of Lettuce (Lactuca sativa) Cultivated and Commercialized in Northeastern, Brazil

Environmental Toxicology, EarlyView.
ABSTRACT This study reports, for the first time, the use of the speckled cockroach Nauphoeta cinerea as a promising bioindicator for genotoxic monitoring. It was validated through control groups (both positive and negative) in addition to testing lettuce (Lactuca sativa ) samples from public street markets consumed by N. cinerea specimens in Pernambuco,
Aleson Aparecido da Silva, Eduardo Henrique da Silva Melo, Érima Maria de Amorim, Maria Gislaine Pereira, Claudia Rohde   +4 more
wiley   +1 more source

Acción protectora de la melatonina sobre células mononucleares de sangre periférica humana sometidas a radiación gamma Co60

Universitas Scientiarum, 2009
Protective action of melatonin on human peripheral blood mononuclear cells exposed to gamma radiation Co60. Objective: toevaluate the protective effect of melatonin on peripheral blood mononuclear cells (PBMCs) exposed in vitro to ionizing radiation ...
Martha Mesa-Villanueva, Magaly Rueda-Martínez, Ruby Zayas-Camacho, Diana Sicard-Suárez   +3 more
doaj  

A Disintegrating Rocky Planet with Prominent Comet-like Tails around a Bright Star

The Astrophysical Journal Letters
We report the discovery of BD+05 4868 Ab, a transiting exoplanet orbiting a bright ( V = 10.16) K-dwarf (TIC 466376085) with a period of 1.27 days.
Marc Hon, Saul Rappaport, Avi Shporer, Andrew Vanderburg, Karen A. Collins, Cristilyn N. Watkins, Richard P. Schwarz, Khalid Barkaoui, Samuel W. Yee, Joshua N. Winn, Alex S. Polanski, Emily A. Gilbert, David R. Ciardi, Jeroen Audenaert, William Fong, Jack Haviland, Katharine Hesse, Daniel Muthukrishna, Glen Petitpas, Ellie Hadjiyska Schmelzer, Norio Narita, Akihiko Fukui, Sara Seager, George R. Ricker   +23 more
doaj   +1 more source

Untreated Hair Dye Effluents Enter the Environment: Are They a Threat to Human Health?

Environmental Toxicology, EarlyView.
ABSTRACT The effluents generated during the process of hair dyeing exhibit a complex composition, comprising chemical compounds with varying toxicity levels. While the adverse impact of hair dyes on human health is acknowledged, there is a notable absence of studies addressing the toxicity associated with effluents produced during these activities. The
Letícia Cristina Gonçalves, Matheus Mantuanelli Roberto, Adriana Fabiana Corrêa da Silva, Maria Aparecida Marin‐Morales   +3 more
wiley   +1 more source

Genome-Wide siRNA Screen Identifies Complementary Signaling Pathways Involved in Listeria Infection and Reveals Different Actin Nucleation Mechanisms during Listeria Cell Invasion and Actin Comet Tail Formation

mBio, 2015
Listeria monocytogenes enters nonphagocytic cells by a receptor-mediated mechanism that is dependent on a clathrin-based molecular machinery and actin rearrangements.
Andreas Kühbacher, Mario Emmenlauer, Pauli Rämo, Natasha Kafai, Christoph Dehio, Pascale Cossart, Javier Pizarro-Cerdá   +6 more
doaj   +1 more source

Psychedelic‐assisted treatment for substance use disorder: A narrative systematic review

Addiction, EarlyView.
Abstract Background and aims This is the first systematic review of the extant literature on all major psychedelic‐assisted treatment for alcohol use disorder (AUD), tobacco use disorder (TUD) and other substance use disorders (SUD). We aimed to summarise the evidence for efficacy of psychedelic‐assisted treatment for AUD, TUD, and SUD; to evaluate its
Theodore Piper, Francesca Small, Sam Brown, Michael Kelleher, Luke Mitcheson, James Rucker, Allan H. Young, John Marsden   +7 more
wiley   +1 more source