Results 101 to 110 of about 111,073 (310)

Contingent Valuation and Random Utility Model Estimates of the Recreational Value of King Mackerel [PDF]

open access: yes
This paper estimates the value of king mackerel bag limit changes with both stated and revealed preference methods. The 1997 Marine Recreational Fishery Statistical Survey allows estimation of the value of avoiding bag limit reductions with the random ...
John C. Whitehead
core  

Highly Efficient Extraction of 212 Pb/212Bi from the Decay Chain of 232Th‐Based on Anion Exchange in Bromide Medium

open access: yesAdvanced Science, EarlyView.
This work provides an effective strategy for selectively extracting 212Pb and 212Bi from the decay chain of 232Th as well as its mechanism illustration. Using the novel strategy, 2.07 MBq of 212Pb is successfully separated from 232Th and its daughters, which enables the supply of 212Pb/212Bi directly from the abundant natural thorium resource to be ...
Lifeng Chen   +11 more
wiley   +1 more source

Valuation of lake ecosystems of Central Pomerania by young people using the contingent valuation method

open access: yesEconomics and Environment, 2019
The article presents the results of the survey using the Contingent Valuation Method. The aim of the research was to estimate the value of selected lake ecosystems of Central Pomerania by determining the willingness to pay for recreational use of the ...
Małgorzata Cichoń
doaj  

The Computer Generation's Willingness to Pay for Originals when Pirates are Present – A CV study [PDF]

open access: yes
A contingent valuation method is applied to study subjects' willingness to pay for originals when illegal copies are freely available. The subjects consisted of 234 Swedish undergraduate students from the "computer generation".
Holm, Håkan
core  

Distinct Biotypes of Visual Perception in Major Depressive Disorder

open access: yesAdvanced Science, EarlyView.
In a discover dataset (272 acute MDD patients), this work identifies a novel depression biotype characterized by impaired visual motion perception, using machine learning clustering. An independent dataset confirms the robustness of this biotype through cross‐validation and demonstrates its generalizability.
Zhuoran Cai   +13 more
wiley   +1 more source

Social ex-post evaluation of local development programs: application of a contingent valuation approach to the Guadix-Marquesado LEADER area (Spain) [PDF]

open access: yes
As part of the evaluation of the activity of a district’s local development group (LAG), valuation by local society could be a potential element of interest.
Calatrava-Requena, Javier   +1 more
core   +1 more source

TopCas: Topology‐Gated Cas12a via DNA‐RNA Chimeric Circular crRNA for Amplification‐Free Nucleic Acid Detection and Conditional Gene Editing

open access: yesAdvanced Science, EarlyView.
The TopCas platform utilizes an engineered DNA‐RNA chimeric circular crRNA to establish topology‐gated control over CRISPR‐Cas12a activity, enabling target‐triggered self‐catalytic amplification (preamplification‐free). This system seamlessly integrates highly sensitive molecular diagnostics with conditionally controlled gene editing, demonstrating ...
Shun Zhang   +7 more
wiley   +1 more source

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