Results 61 to 70 of about 254,056 (303)

Civic Engagement Programs and Youth Development: A Synthesis [PDF]

open access: yes, 2002
Focuses on the role that civic engagement plays in helping young people develop a broad array of strengths and capacities, including educational achievement, health and safety, social and emotional well-being, and self ...
Elizabeth C. Hair   +2 more
core   +1 more source

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko   +6 more
wiley   +1 more source

Identification of Bicarbonate as a Trigger and Genes Involved with Extracellular DNA Export in Mycobacterial Biofilms

open access: yesmBio, 2016
Extracellular DNA (eDNA) is an integral biofilm matrix component of numerous pathogens, including nontuberculous mycobacteria (NTM). Cell lysis is the source of eDNA in certain bacteria, but the source of eDNA remains unidentified for NTM, as well as for
Sasha J. Rose, Luiz E. Bermudez
doaj   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer   +6 more
wiley   +1 more source

Edna McConnell Clark Foundation - 1999 Annual Report [PDF]

open access: yes, 2000
Contains president's message, program information, grants list, financial statements, grant guidelines, and lists of advisors, board members, and ...

core  

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

open access: yesOikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin   +4 more
wiley   +1 more source

Environmental DNA profiling for detecting plant-insect interactions in endangered and native flora

open access: yesFolia Oecologica
Environmental DNA (eDNA) is an established technique for studying plant-insect interactions, that has so far had very limited use in exploring flower-visiting insect communities.
Pugh Andrew   +5 more
doaj   +1 more source

The Works of Edna Staebler: Using Literary Journalism to Celebrate the Lives of Ordinary Canadians [PDF]

open access: yes, 2015
Edna Staebler’s legacy as one of Canada’s early, mainstream literary journalists has been overshadowed by her later success as a cookbook writer and philanthropist.
Gillespie, Bruce
core   +1 more source

Digitalising biodiversity: Exploring perceptions on risks and opportunities

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Digitalisation is transforming biodiversity conservation, offering new opportunities for research, governance and public engagement. Herbarium digitisation, for example, enables large‐scale access to plant data, supporting conservation, restoration and sustainable use.
Björn‐Ola Linnér   +9 more
wiley   +1 more source

Presence of extracellular DNA in candida albicans biofilm matrix and its role in biofilm structure and antifungal susceptibility [PDF]

open access: yes, 2010
Biofilms are structurally complex microconsortia of surface adhering cells embedded within an extracellular matrix (ECM) composed of substances produced and secreted by cells or derived from cell lysis. One of the recently discovered bacterial biofilms
Cleary, Ian A.   +6 more
core  

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