Results 141 to 150 of about 6,627,879 (323)

Systemic Lipid Peroxidation and Colorectal Cancer Risk: A Time‐Varying Relationship

open access: yesInternational Journal of Cancer, EarlyView.
Experimental studies in animals suggest that oxidative stress (OxS) declines as cancer progresses. Whether this occurs in humans, however, remains unclear. The authors of the present study addressed this question by analyzing lipid, DNA, and RNA oxidation biomarkers in relation to colorectal cancer (CRC) risk in patients from Shanghai and the United ...
Gong Yang   +8 more
wiley   +1 more source

An Introduction to Knot Theory

open access: yes, 2014
Knot theory is an active area of study in topology, an area of mathematics studying shapes and surfaces. The study of knots was motivated by an attempt to classify the elements, but has become its own area of mathematical interest. A primary method is to
Bosman, Anthony
core  

Geometric knot theory. [PDF]

open access: yes, 2004
Hui, Wing San.Thesis submitted in: November 2003.Thesis (M.Phil.)--Chinese University of Hong Kong, 2004.Includes bibliographical references (leaves 58-60).Abstracts in English and Chinese.Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Introduction --

core  

Operating Capacity, Pricing and Supply Elasticity in Container Shipping Markets

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT We investigate the channels through which changes in operating capacity influence freight rates in the container shipping market using a novel dataset to create an operating capacity index at the shipping‐route level. Our analysis reveals that when supply elasticity is low, an increase in operating capacity tends to drive freight rates upward,
Cong Sui   +3 more
wiley   +1 more source

Temperature and heat‐load exposure effects on preterm births: Insights from a population‐based study using distributed lag non‐linear models

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective Preterm birth presents a substantial health, psychological, and economic burden worldwide. Environmental factors, including temperature fluctuations, are known to influence the risk of preterm birth. This study aimed to investigate the association between high temperatures and heat load and preterm births. Methods Using a time‐series
Bernard Barzilay   +4 more
wiley   +1 more source

Knot Invariants and Topological Quantum Field Theory

open access: yes, 2022
An elementary introduction to knot theory and its link to quantum field theory is presented with an intention to provide details of some basic calculations in the subject, which are not easily found in texts. Study of Chern-Simons theory with gauge group
Akhtar, Shoaib
core  

The Association Between Stress‐Induced Hyperglycemia Ratio and Increased Urinary Albumin Excretion in Patients With Hypertension: A Population‐Based Study

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT The stress hyperglycemia ratio (SHR), a novel marker reflecting relative hyperglycemia, has been increasingly recognized for its prognostic value in cardiovascular and metabolic diseases. However, its association with early renal damage in hypertensive patients remains underexplored.
Kai‐Jun Zhang   +5 more
wiley   +1 more source

Additional lateral meniscus centralization reduces residual anterolateral rotatory instability after anterior cruciate ligament reconstruction and lateral meniscus repair

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose This study aimed to examine the effects of lateral meniscus (LM) centralization on anterolateral rotational stability in patients with anterior cruciate ligament (ACL) and LM injuries. The hypothesis was that performing LM repair and centralization on knees with LM lesions would control anterolateral rotatory instability (ALRI ...
Ryota Seki   +8 more
wiley   +1 more source

Tutte polynomial in knot theory

open access: yes, 2007
This thesis reviews the history of knot theory with an emphasis on the diagrammatic approach to studying knots. Also covered are the basic concepts and notions of graph theory and how these two fields are related with an example of a knot diagram and how
Petersen, David Alan
core  

Perturbative and Non-perturbative Aspects of the Chern-Simons-Witten Theory [PDF]

open access: yes, 2008
We investigate a relation between non-perturbative and perturbative cases in the 2+1 dimensional Chern-Simons- Witten (CSW) theory for G = E6 gauge group.
Yoyo Wardaya, Asep   +3 more
core  

Home - About - Disclaimer - Privacy