Results 21 to 30 of about 7,782 (241)

Bias in Random Forest Variable Importance Measures: Illustrations, Sources and a Solution [PDF]

open access: yes, 2006
Variable importance measures for random forests have been receiving increased attention as a means of variable selection in many classification tasks in bioinformatics and related scientific fields, for instance to select a subset of genetic markers ...
Zeileis, Achim   +11 more
core   +1 more source

Image Encryption Algorithm Based on Novel Chaotic System and Binary Block CompressedSensing [PDF]

open access: yesJisuanji kexue
An image encryption scheme based on novel integer chaotic system and block compressed sensing(BCS) is proposed for embedded devices.Firstly,an integer chaotic system is designed by perturbing one-dimensional variable parameters.Then,in the compressed ...
FAN Haiju, YUE Shuang, DOU Yuqiang, LI Ming, ZHANG Mingzhu
doaj   +1 more source

The microbial community structure of the Dupnisa cave in Kırklareli, Turkey

open access: yesActa Carsologica, 2020
Cave ecosystems count to be extreme environments due to their stable temperature, darkness, high humidity rates, and limited organic materials. In this context, these ecosystems represent invaluable laboratories for microbiological studies.
Nihal Doğruöz-Güngör
doaj   +1 more source

The Wiener index in iterated line graphs [PDF]

open access: yes, 2012
For a graph G, denote by Li(G) its i-iterated line graph and denote by W(G) its Wiener index. We prove that the function W(Li(G)) is convex in variable i.
Potočnik, P., Knor, M., Škrekovski, R.
core   +1 more source

Evaluation the Distribution of Effective Factors on Habitat Diversity in Kermanshah Protected Areas

open access: yesجغرافیا و پایداری محیط, 2020
Destruction and habitat fragmentation are considered as the most challenging issues of biodiversity and establishment of protected areas is one of preventive methods to reduce biodiversity. Therefore, there are different criteria to choose it. Kermanshah
Peyman Karami   +2 more
doaj   +1 more source

Relationship of Edentulism, Sleep Disordered Breathing and Cardiovascular Disease: NHANES, 2007-2008 [PDF]

open access: yes, 2015
Background Edentulism, though declining in younger adults, remains prevalent in the U.S. older adult population. Poorer health outcomes, including cardiovascular outcomes have been associated with edentulism.
Wiener, R Constance, Wiener, R C
core   +2 more sources

Macroinvertebrate variable least square means for the treatment by reach effect [PDF]

open access: yes, 2011
Bars represent mean average conditions across streams. Errors bars are standard errors. Variable codes are: Biom, Biomass; Shann, Shannon-Wiener diversity index; Total, Total taxa richness; Ephem, Ephemerellidae; Elmid, Elmidae; and Brachy ...
AMANDA RUGENSKI (75319)   +2 more
core   +1 more source

Inventory Of Predatory Insects In Banana Germplasm Umbulharjo Yogyakarta [PDF]

open access: yes, 2023
One  of  the  beneficial  insects  in  agriculture  and  plantations  is a predator. Using natural predators  to  control pests and diseases certainly has advantages.
Putra, Ichsan, Sahnan, Hastin Nur Samsia
core   +2 more sources

Cross-Sectional Association between the Number of Missing Teeth and Cardiovascular Disease among Adults Aged 50 or Older: BRFSS 2010 [PDF]

open access: yes, 2014
Objective. The relationship between oral health and cardiovascular disease is an emerging area of research. The objective of the current study is to evaluate the association of cardiovascular disease and the number of missing teeth as a risk indicator ...
Sambamoorthi, U   +3 more
core   +4 more sources

Noncrop features and heterogeneity mediate overwintering bird diversity in agricultural landscapes of southwest China

open access: yesEcology and Evolution, 2020
Farmland birds are of conservation concerns around the world. In China, conservation management has focused primarily on natural habitats, whereas little attention has been given to agricultural landscapes.
Depin Li   +4 more
doaj   +1 more source

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