Effects of Allogeneic Blood Transfusion in Patients with Stage II Colon Cancer

Meng, Jin,Lu, Xiao-Bo,Tang, Yuan-Xin,Sun, Gong-Ping,Li, Xin,Yan, Yi-Fei,Liang, Gao-Feng,Ma, Si-Ping,Li, Xiao-Xia Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1

The aim of the present study was to determine whether allogeneic red blood cell transfusions showed a deleterious effect and what might be preoperative risk factors for blood transfusion in patients with TNM stage II colon cancer. Total 470 patients who fulfilled inclusion criteria were selected for a further 10-year follow-up study. We found that there were statistical significance between non-transfused and transfused group in mortality (P=0.018), local recurrence (P=0.000) and distant metastasis (P=0.040). Local recurrence and distant metastasis between 1 to 3 units and more than 3 units group did not show any significant differences. There was no difference in survival rate between non-transfused and 1 to 3 units group (log rank=0.031, P=0.860). The difference between different blood transfusion volume in transfused patients was found (78.77% vs 63.83%, P=0.006). Meanwhile, the significant difference of survival rate was existed between non-transfused group and more than 3 units group (84.83% vs 63.83%, P=0.002 ). Univariate analysis showed the following 3 variables to be associated with an increased risk of allogeneic blood transfusions: preoperative CEA level (P<0.05), location of tumor (P<0.01) and diameter of tumor (P<0.01). Multivariate analysis revealed that location of tumor and diameter of tumor are two independent factors for requirement of perioperative transfusions. Therefore, allogeneic transfusion increase the postoperative tumor mortality, local recurrence and distant metastasis in patients with stage II colon cancer. The postoperative tumor mortality, local recurrence and distant metastasis were not associated with the blood transfusion volume. The blood transfusion volume was associated with the survival rate. Location of tumor and diameter of tumor were the independent preoperative risk factors for blood transfusion.

A MobileNet-SSD Model with FPN for Waste Detection

Meng Jing,Jiang Ping,Wang Jianmin,Wang Kai 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.2

Over the past few years, as environmental problems have been progressively deteriorating, waste classifi cation has also become a research hotspot. As an algorithm with better detection accuracy and speed, SSD (Single Shot MultiBox Detector) has made great progress in many aspects. However, it can’t achieve a good detection eff ect for small objects because it does not make full use of high-level semantic information. In this paper, we propose a MobileNet-SSD model with FPN to solve the problem of waste detection, which can reduce parameters, narrow internal space and improve performance for small objects compared with SSD model. Besides, Focal Loss is adopted to reduce the imbalance between foreground and background samples to enhance detector eff ect. To verify the eff ectiveness of the approach proposed here, a dataset for waste detection is collected and annotated. As revealed from the experimental results, the mAP of our method is 93.63% and the speed is 102 FPS, which can beat other methods.

Study on Nano-Metal Oxide and Carbon Nanotube Composites on Thermal Decomposition of Potassium Perchlorate

Ping-An Liu,Meng-Jun Wang,Lu Wang,Jun Wang,Ting Wang 대한화학회 2019 Bulletin of the Korean Chemical Society Vol.40 No.4

In this study, novel carbon nanotube (CNT) and transition-metal oxides (TMOs) nanoparticle catalysts were prepared and their effects on the thermal decomposition of potassium perchlorate (KP) were investigated. Nanocatalysts have been widely studied because of their excellent properties, such as the high surface energies of nanoparticles and their ease of agglomeration adversely affect their catalytic performances. Good dispersion is the key to good nanocatalytic activity. The composite catalysts were prepared by loading a nanocatalyst on CNTs; this improves nanoparticle dispersion, promotes electron transfer during the reaction, and increases the catalytic effect. Different types of CNT-based composite catalysts and their corresponding single nanocatalysts were each added to KP. The effects of the catalysts on the thermal decomposition of KP were studied using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The activity of each catalyst was evaluated on the basis of the changes in the thermal decomposition peaks and the apparent decomposition heats. The results show that the activity of a composite catalyst in KP thermal decomposition is much higher than that of its corresponding single nanocatalyst.

Synthesis and Structural Studies of an Organic Complex and its Association with BSA

Meng, Fa-Yan,Yu, Sheng-Rong,Liang, Li-Xi,Zhong, Xue-Ping,Wang, Li,Zhu, Jin-Mei,Lin, Cui-Wu Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.7

The self-assembly of one novel organic complex based on chlorogenic acid (HCA) and 2,2'-bipyridine (2,2'-bipy) has been synthesized and characterized. The complex achieved by hydrogen-bonding interactions, adopted a 1:1 stoichiometry in a solid state. The proton transfer occurred from the carboxyl oxygen to the aromatic nitrogen atom to form salts CA${\cdot}$(2,2'-Hbipy), the 2,2'-Hbipy molecule individually occupies the pseudo-tetragonum that is formed with CA. In this paper, the interactions of CA${\cdot}$(2,2'-Hbipy) with bovine serum albumin (BSA) were studied by fluorescence spectrometry. For CA${\cdot}$(2,2'-Hbipy), HCA and 2,2'-bipy, the average quenching constants for BSA were $2.4384{\times}10^4$, $4.653{\times}10^3$, and $3.059{\times}10^3\;L{\cdot}mol^{-1}$, respectively. The mechanism for protein fluorescence quenching is apparently governed by a static quenching process. The Stern-Volmer quenching constants and corresponding thermodynamic parameters ${\Delta}$H, ${\Delta}$G and ${\Delta}$S were calculated. The binding constants and the number of binding sites were also investigated. The conformational changes of BSA were observed from synchronous fluorescence spectra.

Protein Kinase C Mediates the Corticosterone-induced Sensitization of Dorsal Root Ganglion Neurons Innervating the Rat Stomach

( Meng Li ),( Lu Xue ),( Hong-yan Zhu ),( Hongjun Wang ),( Xue Xu ),( Ping-an Zhang ),( Geping Wu ),( Guang-yin Xu ) 대한소화기기능성질환·운동학회 2017 Journal of Neurogastroenterology and Motility (JNM Vol.23 No.3

Background/Aims Gastric hypersensitivity contributes to abdominal pain in patients with functional dyspepsia. Recent studies showed that hormones induced by stress are correlated with visceral hypersensitivity. However, the precise mechanisms underlying gastric hypersensitivity remain largely unknown. The aim of the present study was designed to investigate the roles of corticosterone (CORT) on excitability of dorsal root ganglion (DRG) neurons innervating the stomach. Methods DRG neurons innervating the stomach were labeled by DiI injection into the stomach wall. Patch clamp recordings were employed to examine neural excitability and voltage-gated sodium channel currents. Electromyograph technique was used to determine the responses of neck muscles to gastric distension. Results Incubation of acutely isolated DRG neurons with CORT significantly depolarized action potential threshold and enhanced the number of action potentials induced by current stimulation of the neuron. Under voltage-clamp mode, incubation of CORT enhanced voltage-gated sodium current density of the recorded neurons. Pre-incubation of GF109203X, an inhibitor of protein kinase C, blocked the CORT-induced hyperexcitability and potentiation of sodium currents. However, pre-incubation of H-89, an inhibitor of protein kinase A, did not alter the sodium current density. More importantly, intraperitoneal injection of CORT produced gastric hypersensitivity of healthy rats, which was blocked by pre-administration of GF109203X but not H-89. Conclusions Our data strongly suggest that CORT rapidly enhanced neuronal excitability and sodium channel functions, which is most likely mediated by protein kinase C but not protein kinase A signaling pathway in DRG neurons innervating the stomach, thus underlying the gastric hypersensitivity induced by CORT injection. (J Neurogastroenterol Motil 2017;23:464-476)

Enhanced Performances of Vertical-Structured Green-Band InGaN/GaN Multiple-Quantum-Well Solar Cells with Aluminum Reflectors

Meng-Hua Lai,Zhi-Wei Zheng,Jian Yu,Lei-Ying Ying,Bao-Ping Zhang 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.68 No.11

We demonstrated vertical-structured InGaN/GaN multiple-quantum-well (MQW) solar cells with enhanced performances at a wavelength of 510 nm. The enhancement was achieved by using a ptype ohmic mirror with a combined indium-tin-oxide film and an aluminum (Al) reflector inserted beneath the MQW absorption region. In addition, both good ohmic contact and high reflection were observed. The vertical-structured MQW solar cell with an Al reflector exhibited significant improvements in device performances as compared to that without the Al reflector, including a 49% increase in the short-circuit current density and a 56% increase in the power conversion efficiency.

The Effects of Nurse Retention by a Supportive Group in New Graduate Nurses

Meng-Ru Tseng,H L Huang,Tsui-Ping Chu,Bih-O Lee 한국간호과학회 2015 한국간호과학회 학술대회 Vol.2015 No.10

A Diffusion Filter for Discontinuous Surface Measured by High Definition Metrology

Meng Wang,Yi-Ping Shao,Shi-Chang Du,Li-feng Xi 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.

High definition metrology can measure three-dimensional surface topography of discontinuous surfaces that have holes and grooves with large field of field and high lateral resolution. However, when separating discontinuous surfaces in to various scale-limited surface such as form, waviness and roughness, filtering techniques such as Gaussian filters cause “boundary distortion problems. This is because the discontinuous surfaces do not have large enough continuous evaluation area for Gaussian filtering. Therefore, this research proposes a modified anisotropic diffusion filter, which is formulated in terms of heat diffusion, to separate discontinuous surfaces into various scale-limited surfaces. An edge detector is proposed to ensure that the diffusion process only takes place inside the surface but not blur the surface boundaries. In addition, the diffusion time is specified considering the linkage with the cutoff wavelength of Gaussian filters. The performance of the proposed filter is validated by simulated and practical discontinuous surfaces. Moreover, the three dimensional areal surface texture features specified in ISO 25178 can be evaluated from the filtered scale-limited surfaces. Results have demonstrated that the proposed approach is an effective tool for separating and evaluating areal surface texture for discontinuous surfaces regardless of the continuity of the evaluation surface.

Synthesis and Electrochemical Characteristics of Fe-P Alloy Prepared by Electrothermal Reduction Method

Meng Zhao,Gui-Xin Wang,Xiu-Li Li,Rui Liu,Kang-Ping Yan 대한금속·재료학회 2010 METALS AND MATERIALS International Vol.16 No.6

Microscale Fe-P alloy was prepared using Ca3(PO4)2 and Fe2O3 in an electrothermal reduction process, and the electrochemical performance was investigated in detail. The initial discharge capacity could reach ~566.8mAh/g at 0.3 C rate, and the fade trend was so slight that the normalized capacities from 1.0 to 2.0 C rate were adjacent. The energy density and the power density could reach ~1133.6 Wh/kg and ~912.4 W/kg,respectively. The rate capability and the cycle performance were comparable to those of the Fe-P alloy synthesized using zerovalent iron and phosphorus. At 0.5 mV/s scan rate, the oxidation peak and the reduction peak for the reaction of lithium ions with P were positioned at ~1.3 and ~0.5 V, respectively. The reaction occurred under diffusion control, and the lithium ion diffusion efficient was ~1.5×10−9 cm2/s.

Differential equations related to family [문자]

Ping Li,Yong Meng 대한수학회 2011 대한수학회보 Vol.48 No.2

Let h be a meromorphic function with few poles and zeros. By Nevanlinna's value distribution theory we prove some new properties on the polynomials in h with the coefficients being small functions of h. We prove that if f is a meromorphic function and if f^m is identically a polynomial in h with the constant term not vanish identically, then f is a polynomial in h. As an application, we are able to find the entire solutions of the differential equation of the type f^n+P(f)=be^sz+Q(e^z), where P(f) is a differential polynomial in f of degree at most n-1, and Q(e^z) is a polynomial in e^z of degree k ≤max{n-1,s(n-1)/n} with small functions of e^z as its coefficients.