Prognostic factors associated with worse outcomes following chemoradiation therapy in patients with anal carcinoma.

Aim: Chemoradiation therapy (CRT) is considered as the first line of treatment for patients with squamous cell carcinoma of the anal canal. Following initial CRT, patients who present with either persistent or locally recurrent disease are treated by surgical intervention. The aim of our study is to determine the prognostic factors associated with failure of CRT and overall mortality in patients with anal squamous cell carcinoma (SCC).

RECIST 1.1 Target Lesion Categorical Response in Metastatic Renal Cell Carcinoma: A Comparison of Conventional versus Volumetric Assessment.

Purpose To investigate Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) approximations of target lesion tumor burden by comparing categorical treatment response according to conventional RECIST versus actual tumor volume measurements of RECIST target lesions.

The effect of activity and face masks on exhaled particles in children.

Importance: Despite the high burden of respiratory infections among children, the production of exhaled particles during common activities and the efficacy of face masks in children have not been sufficiently studied.

Objective: To determine the effect of type of activity and mask usage on exhaled particle production in children.

Methods: Healthy children were asked to perform activities that ranged in intensity (breathing quietly, speaking, singing, coughing, and sneezing) while wearing no mask, a cloth mask, or a surgical mask.

Early-Onset Colorectal Cancer.

Colorectal cancer (CRC) is the third leading cause of cancer-related deaths in the United States, and the incidence of early-onset CRC (EOCRC, <50 years old) has been steadily increasing over the past 30 years. This article provides a comprehensive review of EOCRC traits, including incidence rates and patterns, tumor biologic differences compared to late-onset CRC, dietary risk factors, relationship between CRC and the microbiome, and patient survival outcomes associated with EOCRC. These factors carry importance in determining diagnostic, prognostic, disease monitoring, and treatment planning practices for EOCRC in the future.

Evidence for a delocalization quantum phase transition without symmetry breaking in CeCoIn.

The study of quantum phase transitions that are not clearly associated with broken symmetry is a major effort in condensed matter physics, particularly in regard to the problem of high-temperature superconductivity, for which such transitions are thought to underlie the mechanism of superconductivity itself. Here we argue that the putative quantum critical point in the prototypical unconventional superconductor CeCoIn is characterized by the delocalization of electrons in a transition that connects two Fermi surfaces of different volumes, with no apparent broken symmetry. Drawing on established theory of f-electron metals, we discuss an interpretation for such a transition that involves the fractionalization of spin and charge, a model that effectively describes the anomalous transport behavior we measured for the Hall effect.