Results 31 to 40 of about 309,278 (337)

Analysis of Observation Modes for Space-Based Inverse Synthetic Aperture Lidar Based on Target Characteristics

Aerospace
With the increasing congestion in orbital environments, on-orbit observation has become critical for spacecraft safety. This study investigated the observation performance of space-based inverse synthetic aperture lidar (ISAL) for monitoring on-orbit ...
Ruimin Shen, Jingpeng Zhang, Lei Dong, Zhenzhen Zheng, Haiying Hu   +4 more
doaj   +1 more source

Simple Mathematical Model Of Pathologic Microsatellite Expansions: When Self-Reparation Does Not Work

, 2007
We propose a simple model of pathologic microsatellite expansion, and describe an inherent self-repairing mechanism working against expansion. We prove that if the probabilities of elementary expansions and contractions are equal, microsatellite ...
Amos, Angers, Barton, Bell, Boris Veytsman, Brinkmann, Brock, Brunner, Calabrese, Calabrese, Cleary, de Gennes, Di Rienzo, Ellegren, Ellegren, FitzSimmons, Garza, Goldstein, Gomes-Pereira, Harper, Harr, Huang, Kayser, Kruglyak, Kruglyak, Lai, Lai, Lai, Leila Akhmadeyeva, Libby, Makova, Mirkin, Monckton, Nielsen, Painter, Pearson, Pearson, Piñeiro, Primmer, Primmer, Schlötterer, Shinde, Shriver, Sibly, Sibly, Tachida, Whittaker, Xu, Yang   +48 more
core   +1 more source

Research on Self-Monitoring Method for Anomalies of Satellite Atomic Clock

International Journal of Aerospace Engineering, 2016
Atomic clock is the core component of navigation satellite payload, playing a decisive role in the realization of positioning function. So the monitoring for anomalies of the satellite atomic clock is very important.
Lei Feng, Guotong Li
doaj   +1 more source

Multiple male and female reproductive strategies and the presence of a polyandric mating system in the termite Reticulitermes labralis (Isoptera:Rhinotermitidae)

Sociobiology, 2014
Reproductive systems of termite colonies may involve the number of individuals in the reproductive caste and the copulatory selectivity of reproductive individuals (i.e., polyandry or polygamy), both of which directly impact the fertility and genetic ...
Jia Wu, Xiaohong Su, Xiaohong Kong, Minghua Liu, Lianxi Xing   +4 more
doaj   +1 more source

A Flexible Topology Control Strategy for Mega-Constellations via Inter-Satellite Links Based on Dynamic Link Optimization

Aerospace
In large-scale satellite constellations, the efficiency of inter-satellite communication is paramount. Traditional topology control strategies, such as the Manhattan configuration, provide stable links but can result in indirect communication paths ...
Yueyi Li, Junfeng Wu, Guohua Kang, Luyu Chen, Yuhuan Qiu, Wenwen Zhou   +5 more
doaj   +1 more source

Hundreds of SNPs versus dozens of SSRs: which dataset better characterizes natural clonal lineages in a self-fertilizing fish?

Frontiers in Ecology and Evolution, 2014
For more than two decades, mitochondrial DNA sequences and simple sequence repeats (SSRs, or microsatellite loci) have served as gold standards in population genetics.
Felix eMesak, Andrey eTatarenkov, Ryan L Earley, John C. Avise   +3 more
doaj   +1 more source

Body Remains Left by Bird Predators as a Reliable Source for Population Genetic Studies in the Great Capricorn Beetle Cerambyx cerdo, a Veteran Oak Specialist

Insects, 2021
Obtaining biological material for DNA extraction is often challenging in organisms of conservation interest. Non-invasive sampling (i.e., sampling without injuring or disturbing an animal) is preferred as it carries no risk to the population’s survival ...
Aleksander J. Redlarski, Tomasz Klejdysz, Marcin Kadej, Katarzyna Meyza, Cristina Vasilița, Andrzej Oleksa   +5 more
doaj   +1 more source

Disentangling Species Delineation and Guiding Conservation of Endangered Magnolias in Veracruz, Mexico

Plants, 2021
The Mexican state of Veracruz has suffered very high deforestation rates in the last few decades, and despite the establishment of protected areas and conservation projects, primary forest is now mainly persisting in mostly small, scattered, fragmented ...
Fabián Augusto Aldaba Núñez, Emily Veltjen, Esteban Manuel Martínez Salas, Marie-Stéphanie Samain   +3 more
doaj   +1 more source

TREX1, a predator for treating MSI‐H tumors?

Molecular Oncology, EarlyView.
Immunotherapy benefits many patients; yet, some with MSI‐H tumors remain unresponsive despite their high immunogenicity. Xu et al. reveal that TREX1 enables immune evasion by degrading cytosolic DNA and suppressing cGAS–STING–IFN‐I signaling. TREX1 loss restores DNA sensing, increases CD8+ T and NK cell infiltration, and boosts antitumor immunity ...
Elena Benidovskaya, Joséphine Deneft, Marc Van den Eynde   +2 more
wiley   +1 more source

Analysis of spatiotemporal evolution characteristics and recovery patterns of mangrove forests in China since 1978

Ecological Indicators
Mangrove ecosystems have garnered significant attention for their pivotal role in the global carbon cycle and their contributions to multiple UN Sustainable Development Goals.
Minduan Xu, Zhipan Wang, Yinyu Liang, Zewen Mo, Qingling Zhang   +4 more
doaj   +1 more source