Results 91 to 100 of about 1,208,864 (273)
A calibration method of robot kinematic parameters by drawstring displacement sensor
International Journal of Advanced Robotic Systems, 2019 Calibration of robot kinematic parameters can effectively improve the absolute positioning accuracy of the end-effector for industrial robots. This article proposes a calibration method for robot kinematic parameters based on the drawstring displacement ...
Yahui Gan, Jinjun Duan, Xianzhong Dai
doaj +1 more source
The impact of teachers’ wages on students’ performance in the presence of heterogeneity and endogeneity. Evidence from Brazil. [PDF]
In this paper we estimate the effect of teachers’ wages on students’ achievement in a developing country. We use test scores of pupils enrolled in the 8th grade of primary school, surveyed in 2001 in Brazil.
Fabio, WALTENBERG, Maresa, SPRIETSMA
core
FEBS Open Bio, EarlyView.This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso +4 more
wiley +1 more source
Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276
FEBS Open Bio, EarlyView.Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig +7 more
wiley +1 more source
Selection of target function in optical coatings synthesis problems
Sistemnì Doslìdženâ ta Informacìjnì TehnologìïThe article presents general information on the use of optical coatings in various industries and analyzes the main approaches to optimizing optical filter structures.
Oleksandr Mitsa +5 more
doaj +1 more source
Achieving the oracle property of OEM with nonconvex penalties
Statistical Theory and Related Fields, 2017 Thepenalised least square estimator of non-convex penalties such as the smoothly clipped absolute deviation (SCAD) and the minimax concave penalty (MCP) is highly nonlinear and has many local optima.
Shifeng Xiong, Bin Dai, Peter Z. G. Qian
doaj +1 more source
CALCULATION METHOD FOR NONLINEAR DYNAMIC LEAST-ABSOLUTE DEVIATIONS ESTIMATOR
JOURNAL OF THE JAPAN STATISTICAL SOCIETY, 2001 Summary: In a nonlinear dynamic model, the consistency and asymptotic normality of the Nonlinear Least-Absolute Deviations (NLAD) estimator were proved by \textit{A. A. Weiss} [Econ. Theory 7, 46-68 (1991)], even though they are difficult to compute in practice.
Hitomi, Kohtaro, Kagihara, Masato
openaire +3 more sources
Estimation of multiple-regime regressions with least absolutes deviation [PDF]
This paper considers least absolute deviations estimation of a regression model with multiple change points occurring at unknown times. Some asymptotic results, including rates of convergence and asymptotic distributions, for the estimated change points ...
Jushan, Bai
core +1 more source
Outlier detection using distributionally robust optimization under the Wasserstein metric [PDF]
, 2017 We present a Distributionally Robust Optimization (DRO) approach to outlier detection in a linear regression setting, where the closeness of probability distributions is measured using the Wasserstein metric.
Chen, Ruidi, Paschalidis, Ioannis Ch.
core
FEBS Open Bio, EarlyView.KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani +6 more
wiley +1 more source