Intelligent Tracking Control for a Class of Uncertain High-Order Nonlinear Systems.

This brief is concerned with the problem of intelligent tracking control for a class of high-order nonlinear systems with completely unknown nonlinearities. An intelligent adaptive control algorithm is presented by combining the adaptive backstepping technique with the neural networks' approximation ability. It is shown that the practical output tracking performance of the system is achieved using the proposed state-feedback controller under two mild assumptions.

Defining a Subgroup Treatable for Laparoscopic and Endoscopic Cooperative Surgery in Undifferentiated Early Gastric Cancer: the Role of Lymph Node Metastasis.

Background: Recently, the use of endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) and the development of laparoscopic and endoscopic cooperative surgery (LECS) have enabled either the preservation of the stomach or the minimization of the extent of partial resection. ESD has recently been practiced on a differentiated type of EGC. However, there is no clear evidence for endoscopic treatments of undifferentiated EGC.

Fuzzy Adaptive Control Design and Discretization for a Class of Nonlinear Uncertain Systems.

In this paper, tracking control problems are investigated for a class of uncertain nonlinear systems in lower triangular form. First, a state-feedback controller is designed by using adaptive backstepping technique and the universal approximation ability of fuzzy logic systems. During the design procedure, a developed method with less computation is proposed by constructing one maximum adaptive parameter.

[The application of extended supraglottic horizontal partial laryngectomy in advanced laryngeal carcinoma and vallecula carcinoma].

Objective: To discuss the function recovery and treatment effect of extended supraglottic orizontal-partial laryngectomy in the treatment of advanced laryngeal carcinoma and vallecula carcinoma.

Method: Forty-four patients who received extended supraglottic orizontal partial laryngectomy were followed up on the survival, breath function, pronunciation and swallowing function.

Result: The 2-year, 3-year survival rates of this group were 72.

A new application of high-efficient silver salts-based photocatalyst under natural indoor weak light for wastewater cleaning.

As a high-quantum-efficiency photocatalyst, the serious photo-corrosion of silver phosphate (Ag3PO4), limits the practical applications in water purification and challenges us. Herein, Ag3PO4 is found to have a high stability under natural indoor weak light irradiation, suggesting that we can employ it by adopting a new application strategy. In our studies, rhodamine B (RhB, cationic dye), methyl orange (MO, anionic dye) and RhB-MO mixture aqueous solutions are used as the probing reaction for the degradation of organic wastewater.

Adaptive Neural Control of MIMO Nonstrict-Feedback Nonlinear Systems With Time Delay.

In this paper, an adaptive neural output-feedback tracking controller is designed for a class of multiple-input and multiple-output nonstrict-feedback nonlinear systems with time delay. The system coefficient and uncertain functions of our considered systems are both unknown. By employing neural networks to approximate the unknown function entries, and constructing a new input-driven filter, a backstepping design method of tracking controller is developed for the systems under consideration.

Controllable synthesis of various kinds of copper sulfides (CuS, Cu7S4, Cu9S5) for high-performance supercapacitors.

Three types of copper sulfides including CuS, Cu7S4 and Cu9S5 were successfully synthesized at different concentrations of ethylenediamine in a liquid phase synthesis process. The whole shape evolution of Cu7S4 microstructures could be manipulated by adjusting the concentration of ethylenediamine. This study indicates that the coordination chemistry of ethylenediamine ligands and copper cations exerts vital effects on the formation of the dendritic structure.

Exploring the association between parental rearing styles and medical students' critical thinking disposition in China.

Background: Critical thinking is an essential ability for medical students. However, the relationship between parental rearing styles and medical students' critical thinking disposition has rarely been considered. The aim of this study was to investigate whether parental rearing styles were significant predictors of critical thinking disposition among Chinese medical students.

Family functioning, social support, and quality of life for patients with anxiety disorder.

Background: Few studies have examined the relationship between family functioning, social support and quality of life in patients with anxiety disorder. There is a paucity of research on anxiety disorders and their predictors in China.

Aims: This study aimed to explore family functioning, social support and quality of life for patients with anxiety disorder and examine the relationship between these elements.

[Determination of 11 industrial antioxidants in the aqueous simulants by ultra-performance liquid chromatography-tandem mass spectrometry].

An ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method has been developed to identify and determine 11 industrial antioxidants in the aqueous simulants. A ProElut PLS SPE column was used for the enrichment, and an ACQUITY UPLC BEH C18 UPLC column (100 mm x 2.1 mm, 1.

Prognostic value of ALDH1A3 promoter methylation in gliob;astoma: a single center experience in Western China.

Background: Aberrations in gene methylation patterns play important roles in gliomagenesis. However, whether the ALDH1A3 promoter methylation is related to prognoses of primary glioblastomas (GBMs) in Western China remains unclear.

Materials And Methods: Methylation levels of ALDH1A3 CpG island in 36 GBMs were identified by pyrophosphate sequencing, while ALDH1A3 expression was assessed with matched paraffin section immunohistochemistry.

Quality of doctor-patient relationship in patients with high somatic symptom severity in China.

Background: High somatic symptom severity (SSS) is associated with reduced health-related function and may affect doctor-patient interactions. This study aimed to explore the quality of the doctor-patient relationship (DPR) and its association with SSS in Chinese general hospitals outpatients.

Patients And Methods: This multicenter cross-sectional study assessed the quality of DPR from both the doctor's and patient's perspective in general outpatients (n=484) from 10 departments of Psychosomatic Medicine (PM), Traditional Chinese Medicine (TCM), and Biomedicine (BM).

MicroRNA-221 accelerates the proliferation of laryngeal cancer cell line Hep-2 by suppressing Apaf-1.

Laryngeal cancer is one of the most commonly occurring malignant cancers of the head and neck region. In the present study, we investigated the roles of miR-221 in laryngeal squamous cell carcinoma cell line, Hep-2. We examined the function and mechanism of miR-221 in Hep-2 cells using techniques of cell biology and molecular pathology, such as western blotting, quantitative PCR, immunohistochemical staining and flow cytometry.

Validation of patient health questionnaire (PHQ) for major depression in Chinese outpatients with multiple somatic symptoms: a multicenter cross-sectional study.

Background: Despite the high co-morbidity of depressive symptoms in patients with multiple somatic symptoms, the validity of the 9-item Patient Health Questionnaire (PHQ-9) has not yet been investigated in Chinese patients with multiple somatic symptoms.

Methods: The multicenter cross-sectional study was conducted in ten outpatient departments located in four cities in China. The psychometric properties of the PHQ-9 were examined by confirmative factor analysis (CFA).

Dynamics of the lipid droplet proteome of the Oleaginous yeast rhodosporidium toruloides.

Lipid droplets (LDs) are ubiquitous organelles that serve as a neutral lipid reservoir and a hub for lipid metabolism. Manipulating LD formation, evolution, and mobilization in oleaginous species may lead to the production of fatty acid-derived biofuels and chemicals. However, key factors regulating LD dynamics remain poorly characterized.

RKKY interaction in graphene with a line defect.

A kind of extended line defect is currently an experimentally available one-dimensional topological structure in graphene lattice. It modifies the electronic properties of graphene in many aspects. For example, it induces an even-parity boundary state which has linear dispersion and breaks the electron-hole symmetry of the graphene electronic structure.

Prognostic factors predicting the postoperative survival period following treatment for primary retroperitoneal liposarcoma.

Background: Liposarcomas, which represent 20% of all adult sarcomas, are the most common histological type of malignant soft tissue tumors. The aim of this study was to define the prognostic factors that predict the postoperative survival period for patients with primary retroperitoneal liposarcoma.

Methods: The clinical data and prognoses of 71 patients with primary retroperitoneal liposarcoma who were treated in the General Hospital of the People's Liberation Army of China between January 1, 2000 and December 31, 2007 were retrospectively reviewed and analyzed.

Rhesus monkey brain development during late infancy and the effect of phencyclidine: a longitudinal MRI and DTI study.

Early brain development is a complex and rapid process, the disturbance of which may cause the onset of brain disorders. Based on longitudinal imaging data acquired from 6 to 16 months postnatal, we describe a systematic trajectory of monkey brain development during late infancy, and demonstrate the influence of phencyclidine (PCP) on this trajectory. Although the general developmental trajectory of the monkey brain was close to that of the human brain, the development in monkeys was faster and regionally specific.

CREPT expression correlates with poor prognosis in patients with retroperitoneal leiomyosarcoma.

Retroperitoneal leiomyosarcomas (LMSs) are rare gynecological malignancies that display poor prognosis and high mortality. Cell cycle-related and expression-elevated protein in tumor (CREPT) is an oncogene that is involved in the regulation of many cell cycle-related proteins. However, its distribution and clinical significance in retroperitoneal LMS remains poorly understood.

[Rapid determination of cyclamate in foods by capillary zone electrophoresis with indirect ultraviolet detection].

A new method for the rapid determination of cyclamate in foods by capillary zone electrophoresis (CZE) with indirect ultraviolet detection was developed. The separation was carried out with an uncoated fused-silica capillary (75 microm i.d.

Sense of coherence contributes to physical and mental health in general hospital patients in China.

The sense of coherence (SOC) may explain why some people become ill under stress whereas others remain healthy. SOC is strongly related to perceived health, particularly mental health. Little is known about the physical and mental health statuses associated with SOC among general hospital outpatients in China.

Dysfunctional illness perception and illness behaviour associated with high somatic symptom severity and low quality of life in general hospital outpatients in China.

Objective: In primary care populations in Western countries, high somatic symptom severity (SSS) and low quality of life (QoL) are associated with adverse psychobehavioural characteristics. This study assessed the relationship between SSS, QoL and psychobehavioural characteristics in Chinese general hospital outpatients.

Methods: This multicentre cross-sectional study enrolled 404 patients from 10 outpatient departments, including Neurology, Gastroenterology, Traditional Chinese Medicine [TCM] and Psychosomatic Medicine departments, in Beijing, Shanghai, Chengdu and Kunming.

Consensus of Euler-Lagrange systems networked by sampled-data information with probabilistic time delays.

This paper investigates the consensus problem of multiple Euler-Lagrange systems under directed topology. Unlike the common assumptions on continuous-time information exchanges, a more realistic sampled-data communication strategy is proposed with probabilistic occurrence of time-varying delays. Both of the sampling period and the delays are assumed to be time-varying, which is more general in some practical situations.

Opportunities and challenges for promoting psychotherapy in contemporary China.

China's first mental health law, which went into effect last year, envisages a world in which psychotherapy is an integral part of all levels of medical care. There are many obstacles to achieving this goal. The new law empowers psychiatrists to provide psychotherapy but few of them have the time or inclination to do so because of the lower incomes generated by non-biological treatments.