Entropy (Basel)
December 2024
Neural machine translation (NMT) systems have achieved outstanding performance and have been widely deployed in the real world. However, the undertranslation problem caused by the distribution of high-translation-entropy words in source sentences still exists, and can be aggravated by poisoning attacks. In this paper, we propose a new backdoor attack on NMT models by poisoning a small fraction of parallel training data.
View Article and Find Full Text PDFBackground: Thoracoscopic surgery is a primary treatment for lung cancer, with lobectomy and mediastinal lymph node dissection being the predominant surgical approaches for invasive lung cancer. While many thoracic surgeons can proficiently perform lobectomy, thorough and standardized lymph node dissection remains challenging. This study aimed to explore a safer and more efficient surgical method for mediastinal lymph node dissection in lung cancer.
View Article and Find Full Text PDFHepatocellular carcinoma (HCC) is a common malignant tumor originating from liver cells, characterized by complex pathogenesis and limited treatment options such as surgery, chemotherapy, and transplantation. Cisplatin, an effective chemotherapeutic agent, disrupts cancer cell DNA but is hindered by side effects and the need for controlled sustained release to optimize efficacy. Metal-organic frameworks (MOFs) have emerged as promising nanocarriers for precise local drug delivery, reducing required doses and mitigating side effects of chemotherapeutic drugs, thus offering a potential avenue for hepatocellular carcinoma (HCC) treatment.
View Article and Find Full Text PDFThe current study examines the mediating roles of self-efficacy and sleep disturbance and the moderating role of gender in the association between the duration of youth/parent communication on depression and anxiety during the COVID-19 isolation period in China. We used the self-designed demographic variable questionnaire, General Self-Efficacy Scale, the Pittsburgh Sleep Quality Index, the Self-Rating Depression Scale, and the Self-Rating Anxiety Scale with 1,772 youths aged 15-24 from 26 provinces in China during the COVID-19 lockdown. We performed demographic variable analysis, correlation analysis, mediation analysis, and moderated analysis.
View Article and Find Full Text PDFObjective: To offer new prognostic evaluations by exploring potentially distinctive genetic features of hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC).
Methods: There were 12 samples for gene expression profiling processes in this study. These included three HCC lesion samples and their matched adjacent nontumor liver tissues obtained from patients with HCC, as well as three ICC samples and their controls collected similarly.
Silibinin is widely utilized drug in various cancer treatments, though its application in cholangiocarcinoma has not yet been explored. For the first time, we evaluated the anticancer potential and underlying molecular mechanism of silibinin in treatment of cholangiocarcinoma treatment. HuCCT-1 and CCLP-1 cells were chosen to be an study model and were exposed to various concentrations of silibinin for indicated times.
View Article and Find Full Text PDFIn this paper, we propose panoramic annular simultaneous localization and mapping (PA-SLAM), a visual SLAM system based on a panoramic annular lens. A hybrid point selection strategy is put forward in the tracking front end, which ensures repeatability of key points and enables loop closure detection based on the bag-of-words approach. Every detected loop candidate is verified geometrically, and the (3) relative pose constraint is estimated to perform pose graph optimization and global bundle adjustment in the back end.
View Article and Find Full Text PDFScene sonification is a powerful technique to help Visually Impaired People (VIP) understand their surroundings. Existing methods usually perform sonification on the entire images of the surrounding scene acquired by a standard camera or on the priori static obstacles acquired by image processing algorithms on the RGB image of the surrounding scene. However, if all the information in the scene are delivered to VIP simultaneously, it will cause information redundancy.
View Article and Find Full Text PDFIn recent years, with the development of depth cameras and scene detection algorithms, a wide variety of electronic travel aids for visually impaired people have been proposed. However, it is still challenging to convey scene information to visually impaired people efficiently. In this paper, we propose three different auditory-based interaction methods, i.
View Article and Find Full Text PDFVisual odometry has received a great deal of attention during the past decade. However, being fragile to rapid motion and dynamic scenarios prevents it from practical use. Here, we present PALVO by applying panoramic annular lens to visual odometry, greatly increasing the robustness to both cases.
View Article and Find Full Text PDFIt is very difficult for visually impaired people to perceive and avoid obstacles at a distance. To address this problem, the unified framework of multiple target detection, recognition, and fusion is proposed based on the sensor fusion system comprising a low-power millimeter wave (MMW) radar and an RGB-Depth (RGB-D) sensor. In this paper, the Mask R-CNN and the single shot multibox detector network are utilized to detect and recognize the objects from color images.
View Article and Find Full Text PDFNavigational assistance aims to help visually-impaired people to ambulate the environment safely and independently. This topic becomes challenging as it requires detecting a wide variety of scenes to provide higher level assistive awareness. Vision-based technologies with monocular detectors or depth sensors have sprung up within several years of research.
View Article and Find Full Text PDFThe use of RGB-Depth (RGB-D) sensors for assisting visually impaired people (VIP) has been widely reported as they offer portability, function-diversity and cost-effectiveness. However, polarization cues to assist traversability awareness without precautions against stepping into water areas are weak. In this paper, a polarized RGB-Depth (pRGB-D) framework is proposed to detect traversable area and water hazards simultaneously with polarization-color-depth-attitude information to enhance safety during navigation.
View Article and Find Full Text PDFSensors (Basel)
November 2016
The introduction of RGB-Depth (RGB-D) sensors into the visually impaired people (VIP)-assisting area has stirred great interest of many researchers. However, the detection range of RGB-D sensors is limited by narrow depth field angle and sparse depth map in the distance, which hampers broader and longer traversability awareness. This paper proposes an effective approach to expand the detection of traversable area based on a RGB-D sensor, the Intel RealSense R200, which is compatible with both indoor and outdoor environments.
View Article and Find Full Text PDFBackground & Aims: BCAT1 initiates the catabolism of branched-chain amino acids. Here, we investigated the function of BCAT1 and its transcriptional regulatory mechanism in hepatocellular carcinoma (HCC).
Methods: RNASeq was used to evaluate BCAT1 mRNA levels in HCC and normal matched specimens.
MicroRNA (miR)-145-5p has been reported to function as a suppressor of cancer and plays an important role in cancer invasiveness. Epithelial-mesenchymal transition (EMT) is an important process in cancer invasion and migration. However, the involvement of miR-145-5p in EMT in human gastric cancer (GC) remains unclear.
View Article and Find Full Text PDFInt J Clin Exp Pathol
October 2016
Peripheral blood-derived inflammation-based scores such as the neutrophil-lymphocyte ratio (NLR) have recently been proposed as prognostic markers in ulcerative colitis. In some previous serological markers are commonly used to detect the severity of the Crohn's disease (CD), but their sensitivity and specificity are relatively low. So we want to use simple indicators which are easy to obtain to predict disease severity.
View Article and Find Full Text PDFBackground: Sarcopenia is closely associated with poor performance status and high mortality in cancer patients. The present study is to determine the correlation between sarcopenia and prognosis of hepatectomy for hepatolithiasis-associated intrahepatic cholangiocarcinoma (IHHCC).
Methods: Sixty-seven eligible IHHCC patients who underwent hepatectomy, between January 2000 and August 2014 were retrospectively evaluated.
Int J Clin Exp Pathol
September 2016
Xantogranulomatous pyelonephritis (XGP) is a rare and chronic variant of pyelonephritis typically associated with obstruction and infection. Xantogranulomatous pyelonephritis can infiltrate liver and connect with hepatic dysfunction. Here we report on a 52-year-old female with a liver mass and a left renal mass detected by uitrasonography and magnetic resonance imaging.
View Article and Find Full Text PDFBackground: Persistent Helicobacter pylori infection confers an increased risk for serious illnesses such as peptic ulcers and gastric cancer. Various cytokines are involved in the regulation of inflammatory immune response in H. pylori-infected gastric mucosa.
View Article and Find Full Text PDFWorld J Surg Oncol
February 2015
Background: Bone marrow-derived stem cells (BMSCs) are locally adjacent to the tumor tissues and may interact with tumor cells directly. The purpose of this study was to explore the effects of BMSCs on the proliferation and invasion of osteosarcoma cells in vitro and the possible mechanism involved.
Methods: BMSCs were co-cultured with osteosarcoma cells, and CCK-8 assay was used to measure cell proliferation.
Objective: To observe the relationship between changes in renin-angiotensin-aldosterone system (RAAS) activity and blood plasma glucose after administration of hydrochlorothiazide (HCTZ) for one year in patients with hypertension.
Methods: 108 hypertensive patients were given 12.5 mg HCTZ per day for one year.
Objectives: To conclude experience and lessons from emergency medical rescue after Wenchuan Earthquake from national and overall review for consideration on worldwide catastrophe rescue in the future.
Methods: To systematically collect huge amount of primary data, and to make analysis, draw conclusions and lessons in terms of five aspects respectively as quake-damage conditions, command system, emergency medical rescue, prevention and control over infectious diseases as well as pairing-assistance for medical system and service reconstruction.
Results: 1.
Objective: To verify the clinical outcomes of applying water swallowing to MR esophagography.
Methods: Thirty patients confirmed postoperatively or histopathologically with thoracic esophageal carcinoma by endoscopic biopsy and 10 healthy volunteers with normal esophagus underwent respectively conventional magnetic resonance imaging (MRI) detection and water swallowing MR esophagography. Of those patients, 4 underwent second examination after radiotherapy.