Results 51 to 60 of about 994 (259)

The Role of Chemotherapy in Pediatric Myoepithelial Carcinoma: A Systematic Review of the Literature

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Myoepithelial carcinoma (MEC) in pediatric patients is a rare and aggressive malignancy characterized by heterogeneous morphology and variable molecular features. The optimal role of chemotherapy remains unclear. We conducted a systematic review according to PRISMA 2020 guidelines to evaluate chemotherapy in pediatric and young‐adult patients ...
Marco Salvi   +7 more
wiley   +1 more source

Dual-Quaternion Julia Fractals

open access: yes, 2023
Fractals offer the ability to generate fascinating geometric shapes with all sorts of unique characteristics (for instance, fractal geometry provides a basis for modelling infinite detail found in nature). While fractals are non-euclidean mathematical objects which possess an assortment of properties (e.g., attractivity and symmetry), they are also ...
openaire   +2 more sources

Determining Parental Factors for Clinical Trial Attrition in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Despite high enrollment rates on Children's Oncology Group (COG) protocols, attrition after initial consent is challenging, introducing bias and prolonging trial completion. While adult oncology literature has identified predictors of withdrawal, little is known about caregiver decision‐making for child participation in ...
Kimberly L. Stathas   +3 more
wiley   +1 more source

Dual-quaternion-based iterative algorithm of the three dimensional coordinate transformation

open access: yesEarth, Planets and Space
Nowadays a unit quaternion is widely employed to represent the three-dimensional (3D) rotation matrix and then applied to the 3D similarity coordinate transformation.
Huaien Zeng   +5 more
doaj   +1 more source

Helmert Transformation Problem. From Euler Angles Method to Quaternion Algebra

open access: yesISPRS International Journal of Geo-Information, 2020
The three-dimensional coordinate’s transformation from one system to another, and more specifically, the Helmert transformation problem, is one of the most well-known transformations in the field of engineering.
Stefania Ioannidou, George Pantazis
doaj   +1 more source

Administering Blinatumomab via Continuous Intravenous Infusion in Pediatric Patients—A Single‐Institution Retrospective Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Blinatumomab, a CD19xCD3 bispecific T‐cell engager, has become standard therapy for children with de novo B‐cell acute lymphoblastic leukemia (B‐ALL). This retrospective review describes the experience of blinatumomab administration in pediatric patients.
Julia M. Hurley   +6 more
wiley   +1 more source

Comment on: “dual-quaternion-based iterative algorithm of the three dimensional coordinate transformation” by Zeng et al. (2024)

open access: yesEarth, Planets and Space
A recent paper by (Zeng et al., Earth Planets Sp 76:20, 2024) Dual-quaternion-based iterative algorithm of the three dimensional coordinate transformation. Earth Planets Space 76, 20.
Sebahattin Bektas
doaj   +1 more source

Research on the rigid body pose estimation using dual quaternions

open access: yesAdvances in Mechanical Engineering, 2019
The dual quaternion is the simplest and most effective mathematical tool to describe the translational and rotational motion of a general rigid body. Its computation and updating require screw vector. The relative pose information need to be updated when
Jing Li
doaj   +1 more source

Simultaneous Calibration of the Hand-Eye, Flange-Tool and Robot-Robot Relationship in Dual-Robot Collaboration Systems

open access: yesSensors, 2022
A multi-robot collaboration system can complete more complex tasks than a single robot system. Ensuring the calibration accuracy between robots in the system is a prerequisite for the effective inter-robot cooperation.
Yanding Qin   +5 more
doaj   +1 more source

Modelling rigid origami with quaternions and dual quaternions

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
This paper examines the mathematical modelling of rigid origami, a type of origami where all the panels are rigid and can only rotate about crease lines. The rotating vector model is proposed, which establishes the loop-closure conditions among a group of characteristic vectors.
Wu, W, You, Z
openaire   +3 more sources

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