Results 91 to 100 of about 25,644,253 (316)

Semi-nonparametric IV estimation of shape-invariant Engel curves [PDF]

open access: yes, 2007
This paper studies a shape-invariant Engel curve system with endogenous total expenditure, in which the shape-invariant specification involves a common shift parameter for each demographic group in a pooled system of nonparametric Engel curves.
Blundell, R., Chen, X., Kristensen, D.
core  

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Almost Prime Coordinates for Anisotropic and Thin Pythagorean Orbits [PDF]

open access: yes, 2014
We make an observation which doubles the exponent of distribution in certain Affine Sieve problems, such as those considered by Liu-Sarnak, Kontorovich, and Kontorovich-Oh. As a consequence, we decrease the known bounds on the saturation numbers in these
Hong, Jiuzu, Kontorovich, Alex
core  

Lateral Separation of Macromolecules and Polyelectrolytes in Microlithographic Arrays

open access: yes, 1997
A new approach to separation of a variety of microscopic and mesoscopic objects in dilute solution is presented. The approach takes advantage of unique properties of a specially designed separation device (sieve), which can be readily built using already
A. Ajdari   +17 more
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Vortex Cleaning Device for Rice Harvester: Design and Bench Test

open access: yesAgriculture
To solve the problem of increased grain impurity rate and grain loss rate caused by clogging of sieve holes during the cleaning process of ratooning rice, a spiral step cleaning device was designed, which disturbed the flow field at the sieve holes ...
Weijian Liu, Shan Zeng, Xuegeng Chen
doaj   +1 more source

Bootstrap Unit Root Tests: Comparison and Extensions [PDF]

open access: yes
In this paper we study and compare the properties of several bootstrap unit root tests recently proposed in the literature. The tests are Dickey-Fuller or Augmented DF-tests, either based on residuals from an autoregression and the use of the block ...
Palm, Franz C.   +2 more
core   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

Comparison of the effectiveness of selected medical segregation systems - START, SIEVE, CAREFLIGHT

open access: yesCritical Care Innovations, 2019
INTRODUCTION: In the face of sudden events with many victims, various types of medical segregation systems were created. Their aim is to set the treatment and transport priority of patients by giving them appropriate urgency codes considering their ...
Monika Klepacka   +3 more
doaj   +1 more source

Quasi-Bayesian analysis of nonparametric instrumental variables models

open access: yes, 2013
This paper aims at developing a quasi-Bayesian analysis of the nonparametric instrumental variables model, with a focus on the asymptotic properties of quasi-posterior distributions.
Kato, Kengo
core   +1 more source

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