Results 31 to 40 of about 87,772 (336)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Algoritma Super Enkripsi (Affine Cipher dan Cipher Transposisi Grup Simetri) untuk Mengamankan Pesan Teks

open access: yesKubik, 2022
Kriptografi adalah ilmu yang mempelajari teknik-teknik matematika yang berhubungan dengan aspek keamanan informasi. Metode kriptografi yang digunakan untuk mengamankan pesan diantaranya adalah affine cipher dan cipher transposisi grup simetri.
Ilfi Nur Diana
doaj   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

De novo variants of IRF2BPL result in developmental epileptic disorder

open access: yesOrphanet Journal of Rare Diseases
Background Pathogenic variants of the IRF2BPL gene have been reported to cause neurodevelopmental disorders; however, studies focused on IRF2BPL in zebrafish are limited.
Yong Wang   +8 more
doaj   +1 more source

Cows, clicks, ciphers, and satire

open access: yesNECSUS, 2015
The social network game Farmville, which allows players to grow crops, raise animals, and produce a variety of goods, proved enormously successful within a year of its launch in 2009, attracting 110 million Facebook users.
Tom Tyler
doaj   +1 more source

Authentication of data hiding using co-occurrence matrix [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2012
This research is considered one of the steps aiming to deal with one of the most important challenges facing communicators via Internet, as a means for ensuring information security and verifying the authenticity and credibility of the received message ...
Melad saeed, Ghada thanoon
doaj   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

open access: yesPopulation Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

PERBANDINGAN PLAYFAIR CIPHER DENGAN 3D PLAYFAIR CIPHER PADA PENGAMANAN CITRA

open access: yesMajalah Ilmiah Matematika dan Statistika, 2021
The development of sending messages that are increasingly easy and sophisticated makes it easier for third parties to access or sabotage the contents of the message, so we need a science called cryptography to secure the message.
Rika Ayu Sukmawati   +2 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

The new normal? Redaction bias in biomedical science

open access: yesRoyal Society Open Science, 2021
A concerning amount of biomedical research is not reproducible. Unreliable results impede empirical progress in medical science, ultimately putting patients at risk.
David Robert Grimes, James Heathers
doaj   +1 more source

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