Results 71 to 80 of about 90,394 (222)

Incomplete Bivariate Fibonacci and Lucas 𝑝-Polynomials

open access: yesDiscrete Dynamics in Nature and Society, 2012
We define the incomplete bivariate Fibonacci and Lucas 𝑝-polynomials. In the case 𝑥=1, 𝑦=1, we obtain the incomplete Fibonacci and Lucas 𝑝-numbers. If 𝑥=2, 𝑦=1, we have the incomplete Pell and Pell-Lucas 𝑝-numbers.
Dursun Tasci   +2 more
doaj   +1 more source

From the predator to the prey: a case study of the vulnerability of Harmonia axyridis to aggressive competitors

open access: yesInsect Science, EarlyView.
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer   +3 more
wiley   +1 more source

Agroecology and Transformative Adaptation to Climate Change

open access: yesAsia Pacific Viewpoint, EarlyView.
ABSTRACT This paper examines transformative adaptation to climate change through the EFICAS Project (Eco‐Friendly Intensification and Climate‐resilient Agricultural Systems) implemented across 12 upland communities in northern Laos from 2014 to 2020.
Jean‐Christophe Castella
wiley   +1 more source

Getting With the Program: Community College Students Need Access to Federal Loans [PDF]

open access: yes, 2009
Examines the availability of federal loans to community college students by race/ethnicity and state, default rates, borrowing trends, and reasons why colleges opt out of federal programs.

core  

From Loss to Transformation? Towards Pluralistic and Politicised Agrarian‐Climate Futures

open access: yesAsia Pacific Viewpoint, EarlyView.
ABSTRACT Understanding how actors perceive and anticipate future states of the world is gaining traction in climate change governance scholarship and related calls for sustainability transformations. However, smallholder farmers, indigenous groups, and local communities, who are expected to bear disproportionate burdens of loss and damage from climate ...
Joel Persson   +4 more
wiley   +1 more source

Solution of an odds inversion problem [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
Consider the problem of determining the possible numbers of balls of two different colors in an urn such that if two are drawn out at random, the odds that they are different colors are a given value. We present a general solution of this problem for all
Robert K. Moniot
doaj   +1 more source

Trends in Student Aid 2016 [PDF]

open access: yes, 2016
Data on student aid for 2015-16 confirm that the dramatic increases in aid awarded in 2009-10 and 2010-11 were products of extreme economic circumstances, not harbingers of long-run changes in financing for postsecondary education.

core  

Adaptive Spaces and Rural Futures: Climate Change, Agrarian Dynamics, and Knowledge Politics in Southeast Asian Socioecological Transformations

open access: yesAsia Pacific Viewpoint, EarlyView.
ABSTRACT Contemporary rural change in Southeast Asia is shaped by complex, intersecting forces that defy simplistic narratives. Researchers must therefore develop new ways to grasp nuanced, non‐linear, and locally specific processes to understand how transformational shifts may occur (or not) in the region.
John F. McCarthy   +2 more
wiley   +1 more source

Proof in C17 Algebra

open access: yesPhilosophia Scientiæ, 2005
This paper considers the birth of algebraic proof by looking at the works of Cardano, Viète, Harriot and Pell. The transition from geometric to algebraic proof was mediated by appeals to the Eudoxan theory of proportions in book V of Euclid.
Brendan Larvor
doaj   +1 more source

Crafting A Class: The Trade Off Between Merit Scholarships and Enrolling Lower-Income Students [PDF]

open access: yes
Our paper uses institutional-level panel data to testwhether an increase in the number of institutionally funded National Merit Scholarship (NMS) winners at an institution isassociated with a reduction in the number of Pell Grant recipients at the ...
Jared Levin   +2 more
core  

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