Results 51 to 60 of about 727,398 (339)

Energy Injection And Absorption In The Cosmic Dark Ages

, 2012
Dark matter annihilation or de-excitation, decay of metastable species, or other new physics may inject energetic electrons and photons into the photon-baryon fluid during and after recombination.
Slatyer, Tracy R.
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Behavioral characteristics of a chondrostean sturgeon species Acipenser baerii prelarvae in response to different environmental light intensities in a diel photoperiodic cycle

Journal of Animal Reproduction and Biotechnology, 2020
Behavioral response to a diel photoperiodicity (500 lx for 16 h, 5 lx for 4 h and < 0.5 lx for 4 h) and phototactic characteristics in dark conditions were examined with Siberian sturgeon Acipenser baerii (Chondrostei, Actinopterygii) prelarvae. Siberian
Eun Jeong Kim, Chulhong Park, Yoon Kwon Nam   +2 more
doaj   +1 more source

Neutralino Annihilations and the Gas Temperature in the Dark Ages

, 2007
Assuming the dark matter is made entirely from neutralinos, we re-visit the role of their annihilation on the temperature of diffuse gas in the high redshift universe. We consider neutralinos of particle mass 36 GeV and 100 GeV, respectively.
Abel, Adi Nusser, Albuquerque, Baltz, Baltz, Benson, Berezhiani, Bromm, Chen, Chuzhoy, Colafrancesco, Diemand, Diemand, Ellis, Felten, Field, Furlanetto, Green, Gunn, Haardt, Hansen, Jungman, Kamionkowski, Kasuya, Kasuya, Mapelli, Padmanabhan, Peebles, Peebles, Pieri, Pieri, Pierpaoli, Press, Ripamonti, Rudaz, Sciama, Shull, Silk, Spergel, Stecker, Tasitsiomi, Thomas, Turner, Ullio, Zacharia Myers, Zhang   +45 more
core   +2 more sources

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Antibacterial Effect of Eco-Friendly Silver Nanoparticles and Traditional Techniques on Aged Heritage Textile, Investigated by Dark-Field Microscopy [PDF]

, 2022
Alexandru Ilieș, Nicolaie Hodor, E. Pantea, Dorina Camelia Ilieș, Liliana Indrie, Mihaela Zdrîncă, Ștefania D. Iancu, Tudor Caciora, Alexandra Chiriac, Carmen Ghergheleş, Hamid R. Taghiyari, Monica Costea, Ștefan Baias   +12 more
openalex   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source

Detecting the 21 cm Signal from the Cosmic Dark Ages

The Astrophysical Journal
The cosmic “dark ages” is the period between the last scattering of the cosmic microwave background and the appearance of the first luminous sources, spanning redshifts 1100 ≳  z  ≳ 30.
Willow Smith, Jonathan C. Pober
doaj   +1 more source

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

Molecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian, Sriraam Sivachandran, Melissa Galati, Brandon Ramchatesingh, Hibo Rijal, Johnny Hanna, Elena Netchiporouk, May Chergui, Margaret Redpath, Samy Abou Setah, Ivan V. Litvinov   +10 more
wiley   +1 more source

Effect of Breeder Age on the Progeny Performance of Three Naked-Neck Chicken Phenotypes [PDF]

Brazilian Journal of Poultry Science, 2019
The study was planned to evaluate the effect of different naked-neck (NN) chicken genotypes and breeder ages on the growth performance of their progenies.
M Azhar, A Mahmud, M Usman, K Javed, HM Ishaq, S Mehmood, S Ahmad, J Hussain, A Ghayas, M Abbas   +9 more
doaj   +1 more source