Results 61 to 70 of about 49,566 (282)

LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones

Drone Systems and Applications
Drones provide a privileged birds’-eye view for collecting high-resolution imagery for morphometric and behavioral sampling of animals. Biologically meaningful measurements extracted from overhead images require an accurate estimate of altitude, but ...
K.C. Bierlich, Drummond Wengrove, Clara N. Bird, Robert Davidson, Todd Chandler, Leigh G. Torres, Mauricio Cantor   +6 more
doaj   +1 more source

Human Immunodeficiency Virus (HIV) Infection and Use of Illicit Substances Promote Secretion of Semen Exosomes that Enhance Monocyte Adhesion and Induce Actin Reorganization and Chemotactic Migration

Cells, 2019
Semen exosomes (SE) from HIV-uninfected (HIV−) individuals potently inhibit HIV infection in vitro. However, morphological changes in target cells in response to SE have not been characterized or have the effect of HIV infection or the use of ...
Yuan Lyu, Hussein Kaddour, Steven Kopcho, Tyler D. Panzner, Nadia Shouman, Eun-Young Kim, Jeremy Martinson, Heather McKay, Otoniel Martinez-Maza, Joseph B. Margolick, Jack T. Stapleton, Chioma M. Okeoma   +11 more
doaj   +1 more source

Indole‐3‐Propionic Acid Improves Alveolar Development Impairment via Targeting VAMP8‐mediated SNAREs Complex Formation in Bronchopulmonary Dysplasia

Advanced Science, EarlyView.
This study aims to evaluate the impact of the tryptophan‐derived metabolite indole‐3‐propionic acid (IPA) on lung development and autophagic flux. IPA alleviates hyperoxia‐induced alveolar arrest by promoting autophagosome‐lysosome fusion via inhibition of VAMP8 phosphorylation, which is suggestive of a promising therapeutic target of BPD.
Beibei Wang, Xu Chen, Haowei Xu, Zhiqi Zeng, Keyu Lu, Yu Mao, Qianru Lv, Hui Shi, Song Liu, Xian Shen, Chunyu Yin, Yang Yang, Yan Guo, Xingyun Wang, Rui Cheng   +14 more
wiley   +1 more source

Integrative Description of Temnothorax siculus sp. n.: A New Ant Species from Sicily, Italy (Hymenoptera, Formicidae)

Diversity
The mostly Holarctic genus Temnothorax (Hymenoptera, Formicidae) is the most diverse ant genus in temperate regions. The Mediterranean, a biodiversity hotspot of rare ant species, hosts over 150 Temnothorax taxa, including several short-range endemics ...
Enrico Schifani, Antonio Alicata, Matthew M. Prebus, Sándor Csősz   +3 more
doaj   +1 more source

Parallel‐laser photogrammetry to estimate body size in free‐ranging mammals

Wildlife Society Bulletin, 2015
It is not always practical to hand‐measure body size of free‐ranging animals. In recent years, parallel‐laser photogrammetry has become increasingly common for obtaining remote estimates of body size.
Jordan N. Weisgerber, Sarah A. Medill, Philip D. McLoughlin   +2 more
doaj   +1 more source

The urban ecology of Iron Age Tel Megiddo: using microvertebrate remains as ancient bio-indicators [PDF]

, 2012
Peer ...
Bar_Oz, Guy, Cucchi, Thomas, Finkenstein, I., Weissbrod, Lior   +3 more
core   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Morphological Analysis of Size and Shape (MASS): An integrative software program for morphometric analyses of leaves

Applications in Plant Sciences, 2019
Premise Morphometric analysis is a common approach for comparing and categorizing botanical samples; however, completing a suite of analyses using existing tools may require a multi‐stage, multi‐program process.
Tya S. Chuanromanee, James I. Cohen, Gillian L. Ryan   +2 more
doaj   +1 more source

Wings of Coenagrion puella vary in shape at the northern range margin (Odonata: Coenagrionidae) [PDF]

, 2008
A previous study has shown that wing size in Coenagrion puella varied considerably along a latitudinal gradient in the UK. Using landmark data from wing images, patterns of shape variation were also determined along the same transect by geometric ...
Harvey, IF, Hassall, C, Thompson, DJ
core   +1 more source

Gut Microbiota‐Derived Anandamide Mediates the Therapeutic Effects of Urolithin A on Alcohol‐Induced Cognitive and Social Dysfunction via CB1R‐DRD2‐RAP1 Signaling Axis

Advanced Science, EarlyView.
This study reveals that Urolithin A (UA) counteracts alcohol‐induced cognitive and social dysfunction (AICSD) via a gut microbiome‐dependent mechanism. UA‐enriched Bacteroids sartorii and Parabacteroids distasonis elevate anandamide (AEA), which activates the CB1R‐DRD2‐Rap1 signaling cascade to drive synaptic repair and reduce neuroinflammation ...
Hongbo Zhang, Zibin Li, Yao Xiao, Ji Bian, Caian He, Chao Liu, Lan Gong, Lin Han, Zhigang Liu, Min Wang   +9 more
wiley   +1 more source