Results 91 to 100 of about 143,524 (296)

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez   +6 more
wiley   +1 more source

Pessimism, Optimism and Credit Rationing [PDF]

open access: yes
In their celebrated contribution on credit rationing, Stiglitz and Weiss (1981) showed that the expected return to the borrower on a loan is increasing in the risk of the project it funds. In this paper, I show that their results do not necessarily carry
Jean-Louis Arcand
core   +3 more sources

A bleak outlook for the U.S. economy [PDF]

open access: yes
Economic activity in the United States has been growing more slowly than average for the past three years, and it is not likely to speed up soon. The slow growth has been due primarily to pessimism among consumers about their long-run personal income ...
David E. Runkle
core  

Change within the Mobile Communications Market - an initial assessment of the structural and organisational repercussions of 3G [PDF]

open access: yes, 2002
Over the last year or so the mobile telecommunications industry has undergone a complete sea change; the initial euphoria surrounding the German and UK licensing process, where widely optimistic claims about the array of possible services and uptake were
Whalley, Jason
core  

Climate‐driven intraspecific shifts in seed germination phenology: Consequences for native temperate woodland restoration and regeneration

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As climate change alters seasonal patterns, temperate tree populations face a growing risk of phenological mismatch, where seed dispersal and germination no longer align with favourable conditions for survival. This study predicted how warming by the end of the century will affect seed dormancy breaking and germination in populations of three UK tree ...
Roberta L. C. Dayrell   +8 more
wiley   +1 more source

Are Risk-Averse Agents more Optimistic? A Bayesian Estimation Approach. [PDF]

open access: yes
Our aim is to analyze the link between optimism and risk aversion in a subjective expected utility setting and to estimate the average level of optimism when weighted by risk tolerance. Its estimation leads to a non-trivial statistical problem.
Ben Mansour, Selima   +4 more
core   +3 more sources

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong   +13 more
wiley   +1 more source

A Review of Critics’ View Regarding Abd al-Rahman Shokry’s Pessimism [PDF]

open access: yesپژوهش‌های ترجمه در زبان و ادبیات عربی, 2012
As a sensitive and astute poet,Abd al-Rahman Shokry was very impressed by the events that took place around him. Researchers who have examined Shokry’s poems believe that his poetry has had several traces of pessimism, an attidude which made them believe
doaj  

Temporal stability of optimism and pessimism (LOT-R) over 6 years in the general population

open access: yesFrontiers in Psychology
ObjectiveThe aims of this study were to examine changes in habitual optimism over a six-year period and to analyze the relationship between changes in optimism and changes in other quality of life-related variables.MethodA randomly selected community ...
Andreas Hinz   +8 more
doaj   +1 more source

Optimism and Pessimism in Games [PDF]

open access: yes
This paper considers the impact of ambiguity in strategic situations. It extends the earlier literature by allowing for optimistic responses to ambiguity. Ambiguity is modelled by CEU preferences.
David Kelsey, Jurgen Eichberger
core  

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