Periodic motions with impact chatters in an impact Duffing oscillator.

The periodic motions of discontinuous nonlinear dynamical systems are very difficult problems to solve in engineering and physics. Until now, except for numerical studies, one cannot find a better way to solve such problems. In fact, one still has difficulty obtaining periodic motions in continuous nonlinear dynamical systems.

Effect of gut microbiota in the colorectal cancer and potential target therapy.

The symbiotic interaction between gut microbiota and the digestive tract is an important factor in maintaining the intestinal environment balance. Colorectal cancer (CRC) is a complex disease involving the interaction between tumour cells and a large number of microorganisms. The microbiota is involved in the occurrence, development and prognosis of colorectal cancer.

Prognostic Value of Tumor-Stroma Ratio in Rectal Cancer: A Systematic Review and Meta-analysis.

Background: Tumor-stroma ratio (TSR) is a promising new prognostic predictor for patients with rectal cancer (RC). Although several studies focused on this pathologic feature, results from those studies were still inconsistent.

Methods: This research aimed to estimate the prognostic values of TSR for RC.

Radiomics of rectal cancer for predicting distant metastasis and overall survival.

Background: Rectal cancer (RC) patient stratification by different factors may yield variable results. Therefore, more efficient prognostic biomarkers are needed for improved risk stratification, personalized treatment, and prognostication of RC patients.

Aim: To build a novel model for predicting the presence of distant metastases and 3-year overall survival (OS) in RC patients.

The efficacy of Raman spectroscopy in the diagnosis of esophageal cancer: a systematic review and meta-analysis.

Background: Esophageal cancer is characterized by its high occurrence rate and difficulty to treat successfully, therefore early diagnosis is extremely important. Our article is aimed to comprehensively analyze the relative effectiveness of Raman spectroscopy (RS) in the diagnosis of suspected esophageal cancer.

Methods: We performed a systemic search in PubMed, EMBASE, CNKI and Web of science from 2007 to 2020.

Diagnostic performance of various liquid biopsy methods in detecting colorectal cancer: A meta-analysis.

Liquid biopsy is a promising method in detecting colorectal cancer (CRC). However, previous meta-analyses only focused on the diagnostic performance of cell-free DNA (cfDNA). Therefore, we firstly evaluated the overall performance of all liquid biopsy methods.

Prognostic Value of Pre-Treatment Prognostic Nutritional Index in Esophageal Cancer: A Systematic Review and Meta-Analysis.

Prognostic nutritional index (PNI), combining albumin and lymphocyte counts, which represent the nutritional and immune status, was considered as an effective predictor for the patient's prognosis after surgery. To comprehensively analyze the relative effectiveness of prognostic performance of pretreatment PNI in esophageal cancer (EC), we performed this meta-analysis. We performed a systematic search in PubMed, Embase, CNKI, and Web of Science.

Diagnostic value of various liquid biopsy methods for pancreatic cancer: A systematic review and meta-analysis.

Background: Liquid biopsy is a novel method for cancer diagnosis, which has been applied in lung and breast cancers, demonstrating high diagnostic value. However, clinical value of it in pancreatic cancer (PC) remains to be verified. The aim of this meta-analysis was to evaluate overall diagnostic value of various liquid biopsy methods (circulating tumor DNA, circulating tumor cells and exosomes) in detecting PC.