Results 71 to 80 of about 46,328 (287)

Multiple Approaches to Absenteeism Analysis [PDF]

open access: yes, 1996
Absenteeism research has often been criticized for using inappropriate analysis. Characteristics of absence data, notably that it is usually truncated and skewed, violate assumptions of OLS regression; however, OLS and correlation analysis remain the ...
Sturman, Michael C.
core   +1 more source

Ch‐Ch‐Ch‐Ch‐Changes: The Impact of Supply Base Growth, Contraction, and Turnover on Firm Innovation

open access: yesJournal of Operations Management, EarlyView.
ABSTRACT Modern supply chains are experiencing more disturbances due to regulatory shifts, rising sustainability standards, emerging or declining markets, and disruption to critical inputs. Some firms react by strengthening existing supplier partnerships to resist changes, while others reconfigure relationships with suppliers to embrace changes ...
Jordan M. Barker   +3 more
wiley   +1 more source

Functional tooth unit, periodontal status, and association with weight change in older adults

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Literature reports that having fewer teeth is associated with reduced chewing capacity, which in turn may lead to weight changes due to diminished oral functionality. This study aims to assess the association between functional tooth units (FTU) and periodontal status and weight change among older adults participating in the Health,
Mariana S. Muñoz   +6 more
wiley   +1 more source

An empirical method to estimate the effect of soil on the rate for transmission of damping‐off disease

open access: yes, 2004
The ability of some soils to suppress soil-borne diseases has been long recognised, but the underlying epidemiological mechanisms by which this occurs are largely unknown.• Using damping-off disease caused by Rhizoctonia solani, spreading through ...
Alabouvette C   +19 more
core   +1 more source

Association between serum bicarbonate and low mid‐upper arm circumference in patients with non‐dialysis‐dependent chronic kidney disease: A cross‐sectional study

open access: yesNutrition in Clinical Practice, EarlyView.
Abstract Background Although previous experimental studies showed that metabolic acidosis promoted muscle catabolism and impaired protein synthesis, few epidemiological studies reported an independent association between serum bicarbonate levels and muscle atrophy in patients with chronic kidney disease (CKD).
Nobuhisa Morimoto   +13 more
wiley   +1 more source

Conditional Heteroskedasticity in Count Data Regression: Self-Feeding Activity in Fish [PDF]

open access: yes
The paper introduces a new approach to incorporating time dependent overdispersion for Poisson related regression models. To handle the added flexibility in conditional heteroskedasticity in time series count data some wellknown estimators are adapted ...
Brännäs, Eva, Brännäs, Kurt
core   +1 more source

Simplifying species‐interaction models by grouping parameters: optimal groupings differ between effects and responses

open access: yesOikos, EarlyView.
Most ecological models of species interactions require many parameters, making them expensive to fit to experimental or observational data. To reduce the number of parameters, species are often divided into groups a priori, for example on the basis of functional or phylogenetic similarity, and species within these groups are assumed to behave ...
Christopher R. P. Brown   +1 more
wiley   +1 more source

Recreation Demand Analysis under Truncation, Overdispersion, and Endogenous Stratification: An Application to Gros Morne National Park [PDF]

open access: yes
Using on-site survey data from Gros Morne National Park in Newfoundland, this paper estimates and compares several truncated count data models of recreation demand.
Joe Amoako-Tuffour   +1 more
core  

Functional diversity in agricultural landscapes: evidence of long‐term clustering and multi‐scale effects of land use on avian communities

open access: yesOikos, EarlyView.
Functional diversity (FD) is an essential community property connecting biodiversity, ecosystem functioning, and conservation objectives. In agricultural landscapes, avian communities, which play key functional roles, are facing large‐scale biodiversity erosion, largely due to land‐use changes.
Pietro Tirozzi   +3 more
wiley   +1 more source

Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe

open access: yesBiodiversity Data Journal, 2013
Echinorhynchus truttae and the E. bothniensis species complex are common parasites of salmoniform and other fishes in northern Europe. E. bothniensis and its sibling species E. 'bothniensis' are thought to be closely related to the Nearctic E. leidyi Van
Matthew Wayland
doaj   +1 more source

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