Results 31 to 40 of about 5,104,201 (298)

Multiple positive periodic solutions of a Gause-type predator-prey model with Allee effect and functional responses

open access: yesAIMS Mathematics, 2020
This paper deals with a Gause-type predator-prey model with Allee effect and Holling type III functional response. We also consider the influence of predator competition and the artificial harvesting on predator-prey system.
Shanshan Yu, Jiang Liu, Xiaojie Lin
doaj   +1 more source

New Information Response Functions [PDF]

open access: yesSSRN Electronic Journal, 2009
We propose a new methodology for the analysis of impulse response functions in VAR or VARMA models. More precisely, we build our results on the non ambiguous notion of innovation of a stochastic process and we consider the impact of any kind of new information at a given date $t$ on the future values of the process. This methodology allows to take into
Jardet, C., Monfort, A., Pegoraro, F.
openaire   +2 more sources

Statistik demografi kumbang predator Stethorus punctillum Weise (Coleoptera: Coccinellidae) pada Tetranychus kanzawai Kishida (Acari: Tetranychidae)

open access: yesJurnal Entomologi Indonesia, 2021
Tetranychus kanzawai Kishida adalah spesies tungau yang dapat menyebabkan kehilangan hasil pada tanaman pertanian sekitar 60–90%. Salah satu cara untuk mengendalikan tungau hama yang ramah lingkungan adalah dengan menggunakan kumbang ...
Nirma Septia Ramlan Anjas   +2 more
doaj   +1 more source

Space race functional responses [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2015
We derive functional responses under the assumption that predators and prey are engaged in a space race in which prey avoid patches with many predators and predators avoid patches with few or no prey. The resulting functional response models have a simple structure and include functions describing how the emigration of prey and predators depend on ...
Sjödin, H.   +2 more
openaire   +4 more sources

Comparability of Functional MRI Response in Young and Old During Inhibition [PDF]

open access: yes, 2004
When using fMRI to study age-related cognitive changes, it is important to establish the integrity of the hemodynamic response because, potentially, it can be affected by age and disease.
Garavan, Hugh   +5 more
core   +2 more sources

The metabolic underpinnings of temperature-dependent predation in a key marine predator

open access: yesFrontiers in Marine Science, 2023
IntroductionChanges in temperature can fundamentally transform how species interact, causing wholesale shifts in ecosystem dynamics and stability. Yet we still have a limited understanding of how temperature-dependence in physiology drives temperature ...
Samantha R. Csik   +8 more
doaj   +1 more source

Synthesis and Quantitative Structure–Activity Relationship of Imidazotetrazine Prodrugs with Activity Independent of O6-Methylguanine-DNA-methyltransferase, DNA Mismatch Repair and p53. [PDF]

open access: yes, 2013
The antitumor prodrug Temozolomide is compromised by its dependence for activity on DNA mismatch repair (MMR) and the repair of the chemosensitive DNA lesion, O6-methylguanine (O6-MeG), by O6-methylguanine-DNA-methyltransferase (EC 2.1.1.63, MGMT). Tumor
Arris C. E.   +42 more
core   +1 more source

Wavelet-Based Linear-Response Time-Dependent Density-Functional Theory

open access: yes, 2011
Linear-response time-dependent (TD) density-functional theory (DFT) has been implemented in the pseudopotential wavelet-based electronic structure program BigDFT and results are compared against those obtained with the all-electron Gaussian-type orbital ...
Abe   +91 more
core   +1 more source

Preferensi dan tanggap fungsional Neoseiulus californicus McGregor (Acari: Phytoseiidae) sebagai predator Tetranychus kanzawai Kishida (Acari: Tetranychidae)

open access: yesJurnal Entomologi Indonesia, 2015
Kanzawa spider mite (KSM), Tetranychus kanzawai Kishida (Acari: Tetranychidae) is an important pest on many crops in Indonesia. Generally, farmers use acaricide to control this mite, which may cause negative side effects.
Sugeng Santoso, Edwin Iswella
doaj   +1 more source

Fast computation of the Kohn-Sham susceptibility of large systems [PDF]

open access: yes, 2005
For hybrid systems, such as molecules grafted onto solid surfaces, the calculation of linear response in time dependent density functional theory is slowed down by the need to calculate, in N^4 operations, the susceptibility of N non interacting Kohn ...
D. Foerster   +5 more
core   +2 more sources

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