Results 81 to 90 of about 42,232 (332)

PHYLOGENETICS OF POND AND LAKE LIFESTYLES IN CHAOBORUS MIDGE LARVAE [PDF]

open access: yesEvolution, 2003
Aquatic invertebrates experience strong trade-offs between habitats due to the selective effects of different predators. Diel vertical migration and small body size are thought to be effective strategies against fish predation in lakes. In the absence of fish in small ponds, migration is ineffective against invertebrate predators and large body size is
Berendonk, T.   +2 more
openaire   +3 more sources

Precise Control of Charge–Structure Coupling in Polyamide Membranes for Mono‐ and Divalent Ion Separation

open access: yesAdvanced Science, EarlyView.
A zwitterionic copolymer, Poly(2‐methacryloyloxyethyl phosphorylcholine‐co‐2‐aminoethyl methacrylate hydrochloride) (P(MPC‐co‐AEMA)) copolymers, with tunable MPC/AEMA ratios, is grafted onto the polyamide (PA) selective layer via secondary interfacial polymerization. Balancing reactive anchoring segments (AEMA) and zwitterionic segments (MPC) regulated
Shaofan Duan   +13 more
wiley   +1 more source

Regional variations in occupancy frequency distribution patterns between odonate assemblages in Fennoscandia

open access: yesEcosphere, 2018
Odonate (damselfly and dragonfly) species richness and species occupancy frequency distributions (SOFDs) were analyzed in relation to geographical location in standing waters (lakes and ponds) in Fennoscandia, from southern Sweden to central Finland.
Esa Korkeamäki   +4 more
doaj   +1 more source

Magnetically Guided Macrophage Immunobots Coordinate Iron‐Metabolic Cascades and Immunogenic Ferroptosis for Tumor Immunotherapy

open access: yesAdvanced Science, EarlyView.
Magnetically guided macrophage immunobots integrate active tumor targeting with immunometabolic therapy. After systemic administration, magnetic actuation enhances immunobot retention and tumor penetration, while LPS‐functionalized FePt microrollers sustain M1‐like polarization through inflammatory and iron‐amplified oxidative signaling and trigger ...
Xirui Zeng   +7 more
wiley   +1 more source

The stability of the water column in french ponds (limousin region) by the calculation of the wedderburn number [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2014
Oxygenation and biological life in lakes, reservoirs and ponds depend on the stability of the water column and on the rhythms of stratification and mixing periods.
TOUCHART L.   +5 more
doaj  

Waikato peat lakes sediment nutrient removal scoping exercise [PDF]

open access: yes, 2008
This report was commissioned by Environment Waikato to examine the available methods for internal (bottom sediment) nutrient removal and their suitability for application in the Waikato peat lakes.
Faithfull, Carolyn L.   +3 more
core  

The Effect of SNAP Purchasing Power on Diet Quality

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Supplemental Nutrition Assistance Program (SNAP) benefits millions of eligible low‐income Americans by increasing access to food, helping to reduce food insecurity. Previous studies have documented that the geographical variation in local food prices leads to significant differences in SNAP's purchasing power.
Farah Khan, Augustine Denteh
wiley   +1 more source

Kennebec Lakes Region The Playground of Central Maine 1939 [PDF]

open access: yes, 1939
A tourism brochure describing the communities and lakes in Central Maine in text and photographs. Communities included include Augusta, Manchester, West Gardiner, Lithfield, Winthrop, Readfield, Kents Hill, Monmouth, Mt Vernon, and Wayne.
Kennebec Lakes Association
core  

Multirobot Aerial Soft Manipulator for Floating Litter Collection

open access: yesAdvanced Intelligent Systems, EarlyView.
A multirobot aerial manipulator enables autonomous floating litter collection by controlling the shape of a flexible rope equipped with a hook‐based tool. Adaptive rope‐shape planning enhances grasping performance while reducing tension, demonstrating the potential of aerial robots for floating litter removal. Removing floating litter from water bodies
Antonio González‐Morgado   +8 more
wiley   +1 more source

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