• Title/Summary/Keyword: zhanjiang

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Prevalence of Toxoplasma gondii in Dogs in Zhanjiang, Southern China

  • Jiang, Hai-Hai;Li, Ming-Wei;Xu, Min-Jun;Cong, Wei;Zhu, Xing-Quan
    • Parasites, Hosts and Diseases
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    • v.53 no.4
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    • pp.493-496
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    • 2015
  • Toxoplasmosis, caused by Toxoplasma gondii, is a parasitic zoonosis with worldwide distribution. The present study investigated the prevalence of T. gondii in dogs in Zhanjiang city, southern China, using both serological and molecular detection. A total of 364 serum samples and 432 liver tissue samples were collected from the slaughter house between December 2012 and January 2013 and were examined for T. gondii IgG antibody by ELISA and T. gondii DNA by semi-nested PCR based on B1 gene, respectively. The overall seroprevalence of T. gondii IgG antibody was 51.9%, and T. gondii DNA was detected in 37 of 432 (8.6%) liver tissue samples. These positive DNA samples were analyzed by PCR-RFLP at 3'- and 5'-SAG2. Only 8 samples gave the PCR-RFLP data, and they were all classified as type I, which may suggest that the T. gondii isolates from dogs in Zhanjiang city may represent type I or type I variant. This study revealed the high prevalence of T. gondii infection in dogs in Zhanjiang city, southern China. Integrated measures should be taken to prevent and control toxoplasmosis in dogs in this area for public health concern.

ON n-HYPONOHRMALITY FOR BACKWARD EXTENSIONS OF BERGMAN WEIGHTED SHIFTS

  • DONG, YANWU;ZHENG, GUIJUN;LI, CHUNJI
    • Journal of applied mathematics & informatics
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    • v.39 no.3_4
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    • pp.443-454
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    • 2021
  • In this paper, we discuss the backward extensions of Bergman shifts Wα(m), where $${\alpha}(m)\;:\;\sqrt{\frac{m}{m+1}},\;{\sqrt{\frac{m+1}{m+2}}},\;{\cdots},\;(m{\in}\mathbb{N})$$. We obtained a complete description of the n-hynonormality for backward one, two and three step extensions.

Facile Preparation of Water Dispersible Red Fluorescent Organic Nanoparticles for Cell Imaging

  • Luo, Miao
    • Bulletin of the Korean Chemical Society
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    • v.35 no.6
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    • pp.1732-1736
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    • 2014
  • Red fluorescent organic nanopaticles (FONs) based on a diarylacrylonitrile derivative conjugated molecule were facilely prepared by surfactant modification. Such red FONs showed excellent water solubility and biocompatibility, making them promising for cell imaging applications.

Studies on Genetic Variation of Different Chinese Duck Populations with Random Amplified Polymorphic DNA Analysis

  • Su, Y.;Liu, C.W.;Liu, L.;Ye, C.H.;Cao, W.Q.;Huang, Y.Q.;Zheng, J.;Cai, D.Y.;Olowofeso, O.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.4
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    • pp.475-481
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    • 2006
  • The genetic polymorphism and relationships of Muscovy, Cherry Valley Meat ducks, Partridge ducks and their crossbreds $F_1$ and $F_2$, respectively, were studied using a random amplified polymorphic DNA (RAPD) technique. The results showed that RAPD markers were effective for the analysis of genetic relationships among ducks. Amplification with 20-primers gave 760 reproducible amplified fragments. The percentage of polymorphic marker band was 74.70%, which indicates that the RAPD technique had higher efficiency of polymorphism detection and sensitivity in studying the genetic variations among ducks and showed that the genetic polymorphism was abundant between two species of duck populations. The average index of genetic distance in hybrid $F_2$ was 0.2341 and higher than that of its parents, which indicates that the genetic diversity was improved by crossbreeding with Muscovy.

Synthesis and Properties of Novel Rhodamine 6G Fluorescent Dye Compound

  • Kim, Hyung-Joo;Wang, Sheng;Son, Young-A
    • Textile Coloration and Finishing
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    • v.24 no.3
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    • pp.153-157
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    • 2012
  • One of organic dye materials which have been long lasting investigated is rhodamine 6G dye series. This dye has been attracted with considerable interests due to the reason of its promising photochemical properties. In this study, a novel fluorescent dye compound based on rhodamine 6G derivative was synthesized through the reaction of rhodamine 6G hydrazide and indole-3-carboxaldehdyde. Absorption and fluorescent emission spectra of this dye were determined with the properties of solvatofluorochromism. Related electron energy states of the dye compound were also characterized by computational calculations.

湛江地名文化的考究

  • Jwa, Gak-Jeong;Mo, Jeong-Yeol
    • 중국학논총
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    • no.70
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    • pp.239-260
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    • 2021
  • In this paper, a total of 4413 place names are collected to analyze the origin and structure of place names from the two categories of nature and humanity. In this collection, there are slightly more natural place-names than humanistic ones, and hydrological ones account for the largest proportion of natural place-names, reflecting the geographical characteristics of Leizhou Peninsula surrounded by sea on three sides. Most of the place names handed down from the feudal period were natural ones. In addition, most of the place names produced after the founding of the People's Republic of China are mainly humanistic place names. In the phonetic aspect of place names, there are still quite a few ancient Vietnamese place names that can be remembered because of oral transmission. With the progress of cultural and economic development, the further development of place names will be dominated by humanistic place names.

Global Post-epidemic Recovery: The Impact of Role Modeling on Employees' Proactive Behavior

  • Wenjie Yang;Xiaoteng Wang;Myeong-Cheol Choi;Hannearl Kim
    • International Journal of Advanced Culture Technology
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    • v.11 no.4
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    • pp.193-201
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    • 2023
  • With the end of global COVID-19 epidemic, hospital staff are likely to be "physically and mentally exhausted" after three years of grueling work in the fight against the epidemic. At this point, it is especially important to enable them to continue to maintain their previous proactive work behavior. This study focuses on 400 employees of various types in three-A grade hospitals in Zhanjiang, Guangdong Province, through the proactive motivation model. Statistical software SPSS 25.0 and AOMS 22.0 were used to analyze the survey data to test whether role modeling in hospital management can have an impact on employees' proactive behaviors, in addition to verifying the mediating role of transactional psychological contract. The results of this study show that: First, role modeling of hospital leaders has a positive effect on employees' proactive behavior and a negative effect on their transactional psychological contract; Second, transactional psychological contract has a negative effect on employees' proactive behavior; Third, the transactional psychological contract mediates the effect between role modeling of leaders and employees' proactive behavior. The results of this research add to the F-path of proactive motivation model, and provide enlightenments and implications for hospital management.