Results 101 to 110 of about 2,755,824 (346)

Spread of common native and invasive grasses and ruderal trees following anthropogenic disturbances in a tropical dry forest

Ecological Processes, 2017
Introduction A fundamental challenge to the integrity of tropical dry forest ecosystems is the invasion of non-native grass species. These grasses compete for resources and fuel anthropogenic wildfires.
Xavier A. Jaime, Skip J. Van Bloem, Frank H. Koch, Stacy A. C. Nelson   +3 more
doaj   +1 more source

Study of the combined effect of temperature, pH and water activity on the radial growth rate of the white-rot basidiomycete Physisporinus vitreus by using a hyphal growth model [PDF]

arXiv, 2011
The present work investigates environmental effects on the growth of fungal colonies of P. vitreus by using a lattice-free discrete modelling approach called FGM (Fuhr et al. (2010), arXiv:1101.1747), in which hyphae and nutrients are considered as discrete structures.
arxiv  

A pragmatic approach to sovereignty on Mars [PDF]

, 2015
Rising interest in Mars colonization from both private and public sectors necessitates a renewed discussion about sovereignty in space. The non-appropriation principle of the Outer Space Treaty currently prohibits any sovereign claims to celestial bodies, but it remains unclear how this principle should be applied to the peaceful colonization of Mars ...
arxiv   +1 more source

Engineering Bacterial Secretion Systems for Enhanced Tumor Imaging and Surgical Guidance

Advanced Materials, EarlyView.
This study presents a novel contrast agent platform, Streptavidin Associated Salmonella (SAS), for fluorescence image guided surgery. SAS selectively colonizes tumors and secretes streptavidin, enabling precise delineation of invasive tumor margins with prolonged signal retention.
Dohee Lee, Heung Jin Jeon, Dohyub Jang, Deukhee Lee, Solbi Kim, Minju Han, Sharon Jiyoon Jung, Jung‐Hyun Lee, Jia Choi, Dong Ha Kim, Dong June Ahn, Keri Kim, Sehoon Kim, Hyo‐Jin Lee, SeungBeum Suh   +14 more
wiley   +1 more source

Upper limits on the probability of an interstellar civilization arising in the local Solar neighborhood [PDF]

, 2015
At this point in time, there is very little empirical evidence on the likelihood of a space-faring species originating in the biosphere of a habitable world. However, there is a tension between the expectation that such a probability is relatively high (given our own origins on Earth), and the lack of any basis for believing the Solar System has ever ...
arxiv   +1 more source

Current Advances of Antibacterial Biomaterials for Bone Regeneration

Advanced Materials Interfaces, EarlyView.
Effective treatment of infectious bone defects requires not only robust bone regeneration, but also the elimination of bacterial infection. This review highlights current cutting‐edge concepts and innovations in synthetic bone repair biomaterials and antibacterial bone repair materials, aiming to promote clinical translation and inspire broader ...
Xueping Kong, Xue Zhang, Ying Wang, Ben Zhang   +3 more
wiley   +1 more source

Infection and colonization of rice seedlings by the plant growth-promoting bacterium Herbaspirillum seropedicae Z67.

Molecular Plant-Microbe Interactions, 2002
A beta-glucoronidase (GUS)-marked strain of Herbaspirillum seropedicae Z67 was inoculated onto rice seedling cvs. IR42 and IR72. Internal populations peaked at over 10(6) log CFU per gram of fresh weight by 5 to 7 days after inoculation (DAI) but ...
E. James, P. Gyaneshwar, N. Mathan, W. Barraquio, P. M. Reddy, P. Iannetta, F. Olivares, J. Ladha   +7 more
semanticscholar   +1 more source

Durable Bio‐Based Nanocomposite Coating on Urinary Catheters Prevents Early‐Stage CAUTI‐Associated Pathogenicity

Advanced Materials Interfaces, EarlyView.
A stable bio‐based nanocomposite coating for urinary catheters is developed using a simple, environmentally‐friendly sonochemical process. The coating, integrating antimicrobial, antibiofilm, and antioxidant properties, effectively tackled multiple early‐stage pathogenic factors associated with catheter‐associated urinary tract infections.
Antonio Puertas‐Segura, Kristina Ivanova, Leonardo Martín Pérez, Bzazou El Ouazzani Zine El Abidine, Aleksandra Ivanova, Barış Gökalsın, Gianluca Ciardelli, Tzanko Tzanov   +7 more
wiley   +1 more source

Challenges of Soft Tissue Integration Around Dental Implants and Strategies Based on Material Surface Modification

Advanced Materials Interfaces, EarlyView.
Peri‐implant soft tissue integration (STI), weaker than natural teeth, raises peri‐implant disease risk. Gingival‐region material surface properties critically modulate soft‐tissue responses, driving surface modifications to enhance STI. This review provides an in‐depth analysis of the challenges of STI around dental implants, comprehensively reviews ...
Shasha Jia, Hanqing Zhao, Yingliang Song, Yong Sun, Guowei Wang, Xiaojing Wang   +5 more
wiley   +1 more source

Antifouling Surface‐Attached Hydrogel Nanocoatings Redefined: Green Solvent‐Based, Degradable, and High‐Performance Protection Against Foulants

Advanced Materials Interfaces, EarlyView.
An ultrathin surface‐attached hydrogel coating is introduced that, unlike the best antifouling coatings so far, consists of hydrophilic, non‐charged, green solvent‐based monomers. It effectively renders the surfaces of medical devices stealth toward proteins, a clinical strain of MRSA and blood while offering on‐demand degradability to regenerate the ...
Jenny Englert, Marc Palà, Jonas Quandt, Hannah Sieben, Oliver Grottke, Bernd Marx, Gerard Lligadas, Cesar Rodriguez‐Emmenegger   +7 more
wiley   +1 more source