Results 61 to 70 of about 9,141 (240)

Collapsibility of contingency tables based on conditional models

, 2010
Strict collapsibility and model collapsibility are two important concepts associated with the dimension reduction of a multidimensional contingency table, without losing the relevant information, In this paper, we obtain some necessary and sufficient ...
VIJAY, V, VELLAISAMY, P
core   +1 more source

Collapsibility and Z-Compactifications of CAT(0) Cube Complexes [PDF]

, 2023
We extend the notion of collapsibility to non-compact complexes and prove collapsibility of locally-finite CAT(0) cube complexes. Namely, we construct such a cube complex $X$ out of nested convex compact subcomplexes $\{C_i\}_{i=0}^\infty$ with the ...
Gulbrandsen, Daniel L
core   +1 more source

A Multi‐Method Approach to Assessing Barrier Effectiveness in Preventing the Spread of Invasive Signal Crayfish (Pacifastacus leniusculus)

River Research and Applications, EarlyView.
ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood, Andrew W. Bray, Karis A. Woolfenden, Paul D. Stebbing, Alison M. Dunn, Josie South   +5 more
wiley   +1 more source

Experimental Research on Collapsibility of Xi’an Loess Improved by Calcium Lignosulfonate

, 2023
To improve the problem of collapsibility of loess, adding industrial materials such as cement is common engineering treatment, but this seriously damages the reclamation performance of soil. Calcium lignosulfonate (CLS) from paper plant waste fluids is a
Dongbo Li, Dong Zhao, Zhentao Bai, Jiaping Liu, Wei Lu   +4 more
core   +1 more source

Predictability of obstructive sleep apnea with a somesthetic screening score: Development and preliminary validation in a prospective study

Sleep Research, EarlyView.
This prospective study developed a two‐step clinical scoring system for obstructive sleep apnea (OSA) screening based on patients’ somesthetic perception of oropharyngeal airflow. The Intermediate Score (IS ≥ 7.5) achieved 73% sensitivity and 77% specificity (AUC = 0.7754; OR = 8.96).
Cédric Garcion, Alain Piron, Alain Lacroix, Bassam Chakar, Christophe Di Piazza   +4 more
wiley   +1 more source

Collapsibility to a Subcomplex of a Given Dimension is NP-Complete [PDF]

, 2017
In this paper we extend the works of Tancer, Malgouyres and Francés, showing that (d, k) -Collapsibility is NP-complete for d≥ k+ 2 except (2, 0).
Giovanni Paolini, Paolini, Giovanni
core   +1 more source

A longitudinal analysis of collapsibility with predictions over the southeastern Loess Plateau in China

Scientific Reports, 2021
Loess presents very unique collapsible behaviour due to its special under-compactness, weak cementation and porousness. Many environmental issues and geological hazards including subgrade subsidences, slope collapses or failures, building cracking and so
Ziyu Zheng, Xi-an Li, Li Wang
doaj   +1 more source

Therapeutic Efficacy of Endoscope‐Guided Coblation for Tongue Base Reduction as Part of Multilevel Surgery in Moderate to Severe OSA Patients

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objective Obstructive sleep apnea (OSA) frequently results from multilevel upper airway obstruction involving the palate, lateral walls, and tongue base. Among various techniques, endoscope‐guided coblation for tongue base reduction (TBR) provides precise resection with excellent hemostasis and minimal morbidity.
Minju Kim, Siyeon Jin, Eun Hyun Cho, Dongyoung Kim, Doo Hee Han, Hyun Jik Kim   +5 more
wiley   +1 more source

Research on the Prediction Model of Loess Collapsibility in Xinyuan County, Ili River Valley Area

, 2023
Collapsibility is a unique engineering geological property of loess. Choosing appropriate parameters to build the prediction model of loess collapsibility is an essential step toward solving the loess collapsibility problem.
Zhiqi Liu, Genyi He, Lifeng Chen, Kai Chen   +3 more
core   +1 more source

Experimental study on collapsible and structural characteristics of artificially prepared loess material

Scientific Reports, 2023
Collapsibility and structural are two of the typical characteristics of natural undisturbed loess. It is of great significance to effectively simulate the collapsibility and structural of natural loess by preparing artificially loess.
Yuwei Zhang, Zhanping Song, Haochun Chen, Lei Ruan, Shimei He   +4 more
doaj   +1 more source