Results 41 to 50 of about 70,688 (219)

Random and externally controlled occurrences of Dansgaard–Oeschger events [PDF]

Climate of the Past, 2018
Dansgaard–Oeschger (DO) events constitute the most pronounced mode of centennial to millennial climate variability of the last glacial period. Since their discovery, many decades of research have been devoted to understand the origin and nature of ...
J. Lohmann, P. D. Ditlevsen
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Self‐Sealing Microneedles Improve Precision and Reduce Reflux in Subretinal Cell Transplantation

Advanced Materials Technologies, EarlyView.
Ultrafine 49G microneedles enable subretinal delivery of induced pluripotent stem cell‐derived retinal pigment epithelial cells through a 50 µm outer diameter tip. Compared with conventional 38G microcannulas, these microneedles reduce cell suspension reflux in a rabbit model, highlighting the potential of microinvasive delivery instruments to improve ...
Jared Ching, Hinako Ichikawa, Aya Motoyoshi, Shin Tanaka, Liam Morrow, Satoshi Shirae, Noriko Sakai, Shohei Kitahata, Michiko Mandai, Kazuaki Kadonosono   +9 more
wiley   +1 more source

Aerosol composition trends during 2000–2020: in-depth insights from model predictions and multiple worldwide near-surface observation datasets [PDF]

Atmospheric Chemistry and Physics
Atmospheric aerosols significantly impact Earth's climate and air quality. In addition to their number and mass concentrations, chemical composition influences their environmental effects.
A. P. Tsimpidi, S. M. C. Scholz, A. Milousis, N. Mihalopoulos, V. A. Karydis   +4 more
doaj   +1 more source

Greenland during the last interglacial: the relative importance of insolation and oceanic changes [PDF]

Climate of the Past, 2016
Insolation changes during the Eemian (the last interglacial period, 129 000–116 000 years before present) resulted in warmer than present conditions in the Arctic region.
R. A. Pedersen, P. L. Langen, B. M. Vinther   +2 more
doaj   +1 more source

An Anti‐Amyloidogenic Approach to Specifically Block Memory Consolidation in Mice for Therapeutic Intervention

Advanced Science, EarlyView.
Functional amyloid conversion of the translation regulator CPEB3 is essential for long‐term memory persistence. This study demonstrates that targeting this molecular switch with the anti‐amyloidogenic peptide QBP1 selectively blocks CPEB3 fibrillation without disrupting phase separation.
Paula López‐García, Kerry R. McGreevy, Maria Eugenia Vaquero, Juan M. Suarez‐Rivero, Antonio Moreno‐Rodríguez, Antonio J. Pérez‐Pulido, Daniel Ramírez de Mingo, Anna Pallé, Helena Akiko Popiel, Andrea Santi, Mario D. Cordero, José Luis Trejo, Yoshitaka Nagai, Mariano Carrión‐Vázquez   +13 more
wiley   +1 more source

Gonadotropin‐Inhibitory Hormone (GnIH) and Its Receptor GPR147 Mediates Acute Stress‐Induced Activation of the Locus Coeruleus‐SAM Axis

Advanced Science, EarlyView.
ABSTRACT Gonadotropin‐inhibitory hormone (GnIH, also known as RFamide‐related peptide‐3, RFRP‐3) is a hypothalamic neuropeptide that regulates vertebrate reproduction via its receptor GPR147. Although GnIH is known to mediate stress‐induced reproductive suppression, its role in broader stress responses remains unclear.
Jiani Zhang, Hongyu Zhu, Wenqi Wang, Bingqian Shen, Yuanyuan Xin, Xingxing Song, Xuanyi Lu, Lixuan Li, Siting Chen, Xiaochen Zhang, Jialing Zeng, Haodong Zheng, Jianlong Lao, Ke Peng, Yixian Wei, Jiaming Zheng, Chuanhuo Hu, Xiaoye Wang, Xun Li   +18 more
wiley   +1 more source

Formation of highly oxygenated organic molecules from α-pinene photooxidation: evidence for the importance of highly oxygenated alkoxy radicals [PDF]

Atmospheric Chemistry and Physics
Highly oxygenated organic compounds (HOMs) from α-pinene oxidation are of great interest because of their importance in secondary organic aerosol (SOA) formation.
S. Kang, J. Wildt, J. Wildt, I. Pullinen, I. Pullinen, L. Vereecken, C. Wu, C. Wu, A. Wahner, S. R. Zorn, T. F. Mentel, T. F. Mentel   +11 more
doaj   +1 more source

A new set-up for simultaneous high-precision measurements of CO₂, δ¹³C-CO₂ and δ¹⁸O-CO₂ on small ice core samples [PDF]

Atmospheric Measurement Techniques, 2016
Palaeoatmospheric records of carbon dioxide and its stable carbon isotope composition (δ13C) obtained from polar ice cores provide important constraints on the natural variability of the carbon cycle.
T. M. Jenk, M. Rubino, D. Etheridge, V. G. Ciobanu, T. Blunier   +4 more
doaj   +1 more source

A Critical Time Window of Neocortex Modulation for Remote Fear Memory in Rats and Humans

Advanced Science, EarlyView.
This study identifies a delayed consolidation window around 18 h after fear learning in the mPFC essential for remote fear memory. VTA dopaminergic input during this window sustains remote memory in rats, while non‐invasive stimulation of homologous human mPFC at the corresponding time selectively weakens remote but not recent fear memory, revealing a ...
Lu Cao, Yu‐Xin Zhang, Xiao‐Xing Liu, Zi‐Hang Li, Tang‐Sheng Lu, Jia‐Hui Deng, Wen Zhang, Peng Li, Xiao Lin, Shu‐Fei Feng, Ting‐Ting Li, Shi‐Qiu Meng, Xiang‐Dong Tang, Tian‐Ye Jia, Trevor W. Robbins, Jie Shi, Ying Han, Yan‐Xue Xue, Lin Lu, Kai Yuan   +19 more
wiley   +1 more source