Results 51 to 60 of about 43,005,439 (390)

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

Payment Information System Administration Course in Lpk Information [PDF]

open access: yes, 1996
Because the old system is still done manually it will require a long time. whereas with this new system, where the process is done by computerized hence requires only a relatively short time.
KOM, D. I. (Dra), Nasori, A. (Ade)
core  

Database resources of the National Center for Biotechnology Information

open access: yesNucleic Acids Res., 2017
The National Center for Biotechnology Information (NCBI) provides a large suite of online resources for biological information and data, including the GenBank® nucleic acid sequence database and the PubMed database of citations and abstracts for ...
Richa Tanya Jeff Dennis A Colleen Evan Devon J Rodney St Agarwala Barrett Beck Benson Bollin Bolton Bourexi   +73 more
semanticscholar   +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

A deep learning algorithm for joint direct tracking and classification of manoeuvring sources

open access: yesIET Radar, Sonar & Navigation, 2022
The remarkable success of deep learning technologies has provided new ideas for solving complex tracking problems. It is difficult for traditional algorithms to directly estimate the trajectory vector and target class from the received signal due to the ...
Wanting Yu   +4 more
doaj   +1 more source

PubChem: a public information system for analyzing bioactivities of small molecules

open access: yesNucleic Acids Res., 2009
PubChem (http://pubchem.ncbi.nlm.nih.gov) is a public repository for biological properties of small molecules hosted by the US National Institutes of Health (NIH). PubChem BioAssay database currently contains biological test results for more than 700 000
Yanli Wang   +5 more
semanticscholar   +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

Computer & Network Equipment Management System (CNEMAS) Application Measurement

open access: yesInternational Journal of Informatics, Information System and Computer Engineering, 2020
ABC is one of the state-owned enterprises in Indonesia. PT. ABC has policy to give some equipment for employees to rent. Application use to control all equipment that rent by employee named as CNEMAS (Computer & Network Equipment Management System ...
Imelda Pangaribuan   +2 more
doaj   +1 more source

Administrative Information System Design in Cash Sales PT. ABC [PDF]

open access: yes, 2007
Information System of cash sales administration is an information system intendedfor the company as a tool to facilitate the handling of cash sales in a procedure whichis managed by the sales manual.
Young, Y. D. (Yudhi)   +1 more
core  

Risk Assessment of Information System

open access: yes, 2015
The main purpose of the paper is to scale back the risks in data systems. associate system is any organized system for the gathering, organization, storage and communication of knowledge. System is an instructional study of systems with a selected regard
Mounica Durba
semanticscholar   +1 more source

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