Results 71 to 80 of about 364,378 (309)

Ground-living spiders (Araneae) at polluted sites in the Subarctic [PDF]

, 2011
Spiders were studied around the Pechenganikel smelter combine, Kola Peninsula, north-western Russia. The average spider density was 6-fold greater and the density of Linyphiidae specimens 11.5-fold higher at slightly polluted sites, compared with heavily
Koponen, Seppo, Seppo Koponen
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Robust ground control point localization from multi-aspect stereo SAR observations using Chinese commercial satellite SVN-2

International Journal of Digital Earth
With the rapid deployment of Chinese commercial synthetic aperture radar (SAR) satellites, stereo SAR technology offers new opportunities for precise ground control point (GCP) localization.
Minzheng Mu, Zhiwei Li, Heng Zhang, Xin He, Yan Zhu, Yifan Zhang, Chenglong Cao, Xun Du, Kun Han   +8 more
doaj   +1 more source

Comparison of Direct and Indirect Georeferencing Methods Using Satellite Linear Array Iimages [PDF]

فصلنامه علوم و فناوری فضایی, 2015
Comparison of direct and indirect methods for georeferencing of satellite linear array stereo images is proposed in this paper. In direct method, collinear condition and orbital elements are used for geolocation of pixels and ground control points (GCPs)
Ahmad Izadipour, Bhzad Akbari, Ali Reza Sharifi, Meysam Yousefzade   +3 more
doaj  

UAV ONBOARD GPS IN POSITIONING DETERMINATION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The establishment of ground control points is a critical issue in mapping field, especially for large scale mapping. The fast and rapid technique for ground control point’s establishment is very important for small budget projects.
K. N. Tahar, S. S. Kamarudin
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Coordinated studies of the geospace environment using cluster, satellite and ground-based data: An interim review [PDF]

, 2005
A little more than four years after its launch, the first magnetospheric, multi-satellite mission Cluster has already tremendously contributed to our understanding about the coupled solar wind - magnetosphere - ionosphere system.
Donovan, E. F., Opgenoorth, H.-J., M. Dunlop, Strömme, A., Frey, H., Dunlop, M., Aikio, A., E. F. Donovan, Marchaudon, A., Amm, O., A. Aikio, A. Marchaudon, Kauristie, K., Nakamura, R., O. Amm, Lester, M., I. W. McCrea, Wild, J. A., Strømme, A., H.-J. Opgenoorth, A. Strømme, J. A. Wild, M. Lester, McCrea, I. W., K. Kauristie, Frey, H. U., H. Frey, R. Nakamura, Opgenoorth, H. J.   +28 more
core   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

FEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source