Results 101 to 110 of about 142,522 (303)

Concave and Non-concave metafrontiers in two-stage DEA framework.

open access: yes, 2018
Concave and Non-concave metafrontiers in two-stage DEA framework.
Jianhuan Huang (5811326)   +2 more
core   +1 more source

MECHANICAL PERFORMANCE OF NEGATIVE POISSON’S RATIO STRUCTURES BASED ON ROTATING CONCAVE HEXAGON (MT)

open access: yesJixie qiangdu, 2023
In order to improve the mechanical performance of the negative Poisson’s ratio structure, based on the deformation mechanism of rotating rigid body structure and concave polygon structure, conventional concave hexagon was rotated by a certain angle to ...
WANG Zhen   +3 more
doaj  

CDK4/6 Inhibition Induces CD8+ T Cell Antitumor Immunity via MIF‐Induced Functional Orchestration of Tumor‐Associated Macrophages

open access: yesAdvanced Science, EarlyView.
CDK4/6 inhibition promotes CD8+ T cell expansion through tumor‐macrophage crosstalk by activating HIF‐1α and enhancing MIF‐CD44/CD74 signaling. This reprograms TAMs to boost MHC‐I antigen presentation, and CDK4/6 inhibitor‐trained M1 TAM supernatant therapy synergizes with low‐dose PD‐1 blockade to restore antitumor immunity.
Lin He   +17 more
wiley   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

open access: yesAdvanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang   +11 more
wiley   +1 more source

Effects of concave thoracoplasty on chest circumference and ventilatory function in adolescence with idiopathic scoliosis

open access: yes
Introduction Adolescent idiopathic scoliosis (AIS) can reduce rib cage volume, which mechanically overloads the respiratory musculature. A current study examines the influences of concave thoracoplasty on pulmonary function and chest circumference ...
Youssry El Hawary   +5 more
core   +1 more source

A Bioinspired Three‐Dimensional High‐Curvature Nano‐Interface Integrated Microfluidic Chip for Small Extracellular Vesicles Enrichment and Machine Learning‐Assisted Prostate Cancer Precision Diagnosis

open access: yesAdvanced Science, EarlyView.
A biotin‐modified artificial insertion peptide functionalized three‐dimensional high‐curvature‐TiO2 nano‐interface was engineered in a microfluidic chip to improve the isolation efficiency of small extracellular vesicles (sEVs). This chip balanced affinity, releasability, and extendibility, enabling high‐throughput recovery of sEVs for downstream ...
Le Wang   +7 more
wiley   +1 more source

With Exhaustible Resources, Can A Developing Country Escape From The Poverty Trap? [PDF]

open access: yes
This paper studies the optimal growth of a developing non-renewable natural resource producer. It extracts the resource from its soil, and produces a single consumption good with man-made capital. More- over, it can sell the extracted resource abroad and
Katheline Schubert   +2 more
core   +2 more sources

CONVEXITY AND CONCAVITY OF MEANS

open access: yesInternational Journal of Research -GRANTHAALAYAH, 2017
In this paper, convexity and concavity among Greek means are discussed and the results are interpreted with Vander monde's determinant.
K. M. Nagaraja, Vimala.T
openaire   +3 more sources

Dumbbell‐Structured Plasmonic‐Enhanced Optical Nanoprobes Boosting Photo‐Magnetic‐Acoustic Multimodal Imaging‐Guided Photodynamic‐Photothermal Synergistic Treatment and Immunogenic Death in Nasopharyngeal Carcinoma

open access: yesAdvanced Science, EarlyView.
This study reports a novel rationally‐designed optical nanoprobe based on dumbbell‐shaped mesoporous silica‐coated gold nanorods, loaded with rare‐earth oxides, photosensitizers, and tumor‐targeted peptides, enabling plasmonic‐enhanced multimodal imaging and PTT‐PDT synergy.
Baikang Zhuang   +12 more
wiley   +1 more source

Sorted concave penalized regression

open access: yes, 2019
The Lasso is biased. Concave penalized least squares estimation (PLSE) takes advantage of signal strength to reduce this bias, leading to sharper error bounds in prediction, coefficient estimation and variable selection.
Zhang, Cun Hui, Feng, Long
core   +1 more source

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