Results 31 to 40 of about 269,745 (308)

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

Multiple origins and regional dispersal of resistant dhps in African Plasmodium falciparum malaria. [PDF]

, 2009
BACKGROUND: Although the molecular basis of resistance to a number of common antimalarial drugs is well known, a geographic description of the emergence and dispersal of resistance mutations across Africa has not been attempted.
A-Elbasit, Ishraga E, Agboghoroma, Chris O, Barnes, Karen I, Bonnet, Maryline, Bâ, El-Hadj, Chanda, Pascalina, Chandramohan, Daniel, Cissé, Badara, Clarke, Sian, Dejene, Seyoum, Diallo, Diadier A, Dunyo, Samuel, Elegba, Olufunmilayo Y, Evehe, Marie-Solange B, Getachew, Asefaw, Giha, Hayder A, Grobusch, Martin P, Guthmann, Jean-Paul, Hawela, Moonga, Inojosa, Walter, Kachur, S Patrick, Katokele, Stark T, Kweku, Margaret, Lynch, Caroline, Malisa, Allen L, Matondo, Alexandre, Mbacham, Wilfred, Mombo-Ngoma, Ghyslain, Naidoo, Inbarani, Njie, Fanta, Ord, Rosalynn, Owusu-Agyei, Seth, Pearce, Richard J, Pota, Hirva, Roper, Cally, Rwakimari, John B, Sharp, Brian, Streat, Elizabeth, Swarthout, Todd D, Uusiku, Petrina, van den Broek, Ingrid V   +40 more
core   +5 more sources

European guidelines from the EHTG and ESCP for Lynch syndrome: an updated third edition of the Mallorca guidelines based on gene and gender

BJS (British Journal of Surgery), EarlyView., 2020
Recommendations for clinical and molecular identification of LS, surgical and endoscopic management of LS‐associated colorectal cancer and preventive measures for cancer were produced. The emphasis was on surgical and gastroenterological aspects of the cancer spectrum.
T. T. Seppälä, A. Latchford, I. Negoi, A. Sampaio Soares, R. Jimenez‐Rodriguez, L. Sánchez‐Guillén, D. G. Evans, N. Ryan, E. J. Crosbie, M. Dominguez‐Valentin, J. Burn, M. Kloor, M. von Knebel Doeberitz, F. J. B. van Duijnhoven, P. Quirke, J. R. Sampson, P. Møller, G. Möslein, on behalf of the European Hereditary Tumour Group (EHTG) and European Society of Coloproctology (ESCP)   +18 more
wiley   +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

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

Development of novel multiplex microsatellite polymerase chain reactions to enable high-throughput population genetic studies of Schistosoma haematobium [PDF]

, 2015
© 2015 Webster et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in ...
A. A. Hamidou, A. Garba, A. Gouvras, A. M. Emery, AM Emery, B. L. Webster, BL Webster, C Van Oosterhout, CM Gower, CM Gower, D. Rollinson, F. Allan, J. P. Webster, JP Webster, K. A. Mohammed, L Meurs, M Kearse, M. Rabone, R Peakall, S Knopp, S. Knopp, S. M. Ame, T. Pennance, TC Glenn   +23 more
core   +4 more sources

Dual-Level Domain Alignment and Boundary-Aware Optimization for Semisupervised Tree Crown Instance Segmentation in UAV Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This paper addresses the key task of accurately delineating individual tree crowns from uncrewed aerial vehicle (UAV) imagery for fine-scale orchard monitoring.
Shaohang Wu, Boyuan Zhuang, Zhipan Wang, Qingling Zhang   +3 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

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