Results 31 to 40 of about 3,938 (256)

Dynamic Observation of Lacy Pattern Formation in a Bone Tissue Model Using Liquid Phase Scanning Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Here, we establish a low‐dose liquid‐phase electron microscopy workflow for real‐time observation of biological processes in hydrated conditions. Beam damage is reduced by imaging only 20% of the pixels and reconstructing the complete image using an inpainting algorithm.
Luco Rutten, Avital Wagner, Rona Roverts, Luco Buise, Ben Joosten, Anat Akiva, Elena Macías‐Sánchez, Nico Sommerdijk   +7 more
wiley   +1 more source

Translocation as a tool for the conservation of the jaguar Panthera onca: a case study in the Brazilian Atlantic Forest

Oryx
The success of translocation as a management tool is based on reversing the factors that led to a population becoming threatened or locally extinct. We assessed whether translocating a jaguar Panthera onca into the surroundings of a protected area in the
Fernando C.C. Azevedo, Pedro H. Nobre, Giovanne A. Ferreira, Ronaldo Morato, Rogério C. de Paula, Paulo R. Amaral, Eduardo Eizirik, Caroline C. Sartor, Artur Andriolo   +8 more
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

野生动物对生态旅游的习惯化:哥斯达黎加科尔科瓦多国家公园中的COVID‐19封锁实验

Wildlife Letters
Corcovado National Park (CNP) in Costa Rica is an important destination for ecotourism. However, the effects of increasing human visitation on wildlife needed evaluation and the global COVID‐19 pandemic lockdown provided a scenario to test the effects of
Juan C. Cruz‐Díaz, Max Villalobos, Víctor H. Montalvo, Carolina Sáenz‐Bolaños, Todd K. Fuller, Eduardo Carrillo   +5 more
doaj   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Ecology of Jaguars

, 2023
Jaguars are large, solitary, carnivorous mammals belonging to the Felidae family. They are the third largest feline species in the world, after tigers and lions, and are the largest feline species in the Americas.
openaire   +1 more source

Social media data from two iconic Neotropical big cats: can this translate to action?

Frontiers in Conservation Science, 2023
IntroductionThere has been a gradual increase in studies of social media data usage in biodiversity conservation. Social media data is an underused source of information with the potential to maximize the outcomes of established conservation measures. In
Yuri Geraldo Gomes Ribeiro, Yuri Geraldo Gomes Ribeiro, Rodrigo Matta Bastos, Beatriz Oliveira Silva, Silvio Marchini, Rafael Batista Morais, Mariana Labão Catapani, Mariana Labão Catapani, Pedro Luiz Pizzigatti Corrêa, Ricardo Luís Azevedo da Rocha, Ariana Moura da Silva, Katia Maria Paschoaletto Micchi Barros Ferraz   +11 more
doaj   +1 more source

Integrated Single‐Cell and TCR Profiling Reveals Protection‐Associated CD8+ T Cell Subsets Linked to Viral Control in PRRSV

Advanced Science, EarlyView.
PRRSV vaccine‐mediated protection is associated with clonally expanded cytotoxic CD8+ T cell subsets driven by viral structural proteins and supported by innate TLR4/TLR8 signaling and CD4+ T cell help, whereas non‐protective responses are characterized by dysfunctional exhausted‐like CD8+ T cells linked to poor viral control.
Can Kong, Siang Chen, Maolin Li, Meng Wang, Hailin Zhang, Bolun Zhou, Zhenhua Xie, Chen Wang, Peng Gao, Jianjun Luo, Hanchun Yang, Runsheng Chen, Dongdong Zhang, Jie Li, Jun Han   +14 more
wiley   +1 more source

Conservation crisis? Status of jaguars Panthera onca in Corcovado National Park, Costa Rica

Oryx
Maintaining jaguar Panthera onca subpopulations throughout Mesoamerica is vital to range-wide jaguar conservation. Corcovado National Park in Costa Rica is critical habitat for the Osa Peninsula jaguar ...
Erik R. Olson, Yunyi Shen, Parker J. Matzinger, Evelyn Tatiana Solano Mora, Guido Saborío-R., Alejandro Azofeifa   +5 more
doaj   +1 more source

Aberrant GRP78 Phase Transition Sustains Endothelial IRE1α Signaling and Drives Blood–Brain Barrier Failure in Cerebral Amyloid Angiopathy

Advanced Science, EarlyView.
Vascular Aβ40 corrupts GRP78 phase behavior in brain endothelial cells, sustaining IRE1α–TRAF2–JNK signaling and driving apoptosis, tight junction loss, and blood–brain barrier failure in cerebral amyloid angiopathy. Pharmacological IRE1α inhibition restores vascular integrity, reduces leakage, and improves functional outcomes, revealing a targetable ...
Honglin Zheng, Qiang Li, Haiyang Luo, Yapei Yuan, Na Zhang, Yongting Lu, Suying Duan, Jieshi Zhong, Hang Zhang, Chenyang Liu, Yaochong Zhang, Wenzhuo Zhao, Yaxuan Song, Tuo Wang, Si Yan, Yapeng Li, Han Liu, Yuan Gao, Zongping Xia, Yuming Xu   +19 more
wiley   +1 more source