Results 141 to 150 of about 9,114,126 (253)

Refugia, but Not for Everyone: Genetic Structure Differentiates Shallow and Mesophotic Populations of the Brooder Sponge Ircinia variabilis. [PDF]

open access: yesMol Ecol
Morav T   +10 more
europepmc   +1 more source

The political economy of shallow lakes [PDF]

open access: yes
Shallow lakes display hysteresis in their response to phosphorous loading. Gradual increases in the nutrient content of the lake can appear to have little effect on the oligotrophic state of the lake until a point at which the lake suddenly flips to a ...
McDonald, Stuart   +2 more
core  

The Structure Performance Hypothesis and The Efficient Structure Performance Hypothesis-Revisited: The Case of Agribusiness Commodity and Food Products Truck Carriers in the South [PDF]

open access: yes
Two competing hypotheses on market structure and performance of firms are the traditional structure-conduct-performance (SCP) paradigm and the efficiency structure hypothesis.
Allen, Albert J.   +3 more
core  

Advanced Mathematical Extensions of Data Field Theory: Hyperbolic Geometry, Gauge Theory, and Higher Structures

open access: yesAdvanced Physics Research, EarlyView.
This graphical abstract illustrates the unified framework of Data Field Theory (DFT), integrating hyperbolic geometry for hierarchical embedding, gauge theory for internal symmetries, renormalization group for multi‐scale dynamics, Lévy processes for heavy‐tailed fluctuations, noncommutative geometry for quantum‐inspired cognition, and higher ...
Mohammadreza Nehzati
wiley   +1 more source

Community structure of planktonic copepoda in a shallow, macrophytic lake, Lake Biandantang

open access: yes, 1998
Community structure of copepods, including species composition, population dynamics and standing crops, was studied in a shallow, macrophytic lake, lake Biandantang (Hubei, China).
Xie Ping   +1 more
core  

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