scholarly journals The first records of Capniella (Plecoptera: Capniidae) from northeast China

2021 ◽  
Vol 48 ◽  
pp. 49-61
Author(s):  
Zhishan Cao ◽  
Ding Yang ◽  
Weihai Li
Keyword(s):  
Northeast China ◽  
Liaoning Province ◽  
Heilongjiang Province ◽  
First Time

The genus Capniella Klapálek, 1920 is recorded from China for the first time: C. gibba Hwang, Li & Murányi, 2021 was collected from Liaoning Province, and C. nodosa Klapálek, 1920 from Heilongjiang Province. Both species are redescribed from both sexes, including the unknown female of the recently described C. gibba.

scholarly journals Prevalence and time trends of spina bifida in fourteen cities located in the Liaoning province of northeast China, 2006-2015

Oncotarget ◽  
2017 ◽  
Vol 8 (12) ◽  
pp. 18943-18948
Author(s):  
Gen Ba ◽  
Qi-Jun Wu ◽  
Yan-Ling Chen ◽  
Yan-Hong Huang ◽  
Ting-Ting Gong
Keyword(s):  
Spina Bifida ◽  
Northeast China ◽  
Time Trends ◽  
Liaoning Province

scholarly journals Completely preserved cockroaches of the family Mesoblattinidae from the Upper Jurassic-Lower Cretaceous Yixian Formation (Liaoning Province, NE China)

2013 ◽  
Vol 64 (4) ◽  
pp. 291-304 ◽  
Author(s):  
Dandan Wei ◽  
Dong Ren
Keyword(s):  
Lower Cretaceous ◽  
Hind Wing ◽  
Upper Jurassic ◽  
Morphological Characters ◽  
Yixian Formation ◽  
Liaoning Province ◽  
Tergal Glands ◽  
The Family ◽  
Left And Right ◽  
First Time

Abstract Although cockroaches were the dominant insects in various Paleozoic and Mesozoic insect assemblages, their general morphology was extremely conservative. One of the most common of them, the Jurassic-Cretaceous family Mesoblattinidae, is described here for the first time on the basis of completely preserved specimens. Ninety-two specimens of Perlucipecta aurea gen. et sp. n. reveal details of head, mandible, male tergal glands and terminal hook; cercal, leg and antennal sensilla. Its congener, P. vrsanskyi is described from the same sediments of the Yixian Formation (Upper Jurassic-Lower Cretaceous). The forewing venation variability of P. aurea, analysed for the first time in this family is nearly identical (CV = 6.23 %) with variability of two species of family Blattulidae that occur at the same locality (CV = 6.22 %; 5.72 %). The transitional nature of morphological characters represented by asymmetry between left and right wings (simple/branched forewing SC and hind wing M) in P. aurea documents the phylogenetic relation between the families Mesoblattinidae and Ectobiidae

scholarly journals Optimal Design of Bioenergy Supply Chains Considering Social Benefits: A Case Study in Northeast China

Processes ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 437 ◽  
Author(s):  
Cong Gao ◽  
Daogang Qu ◽  
Yang Yang
Keyword(s):  
Supply Chain ◽  
Optimal Design ◽  
Supply Chains ◽  
Northeast China ◽  
Liaoning Province ◽  
Mixed Integer ◽  
Social Benefits ◽  
Economic Activities ◽  
The Social ◽  
The Government

Bioenergy supply chains can offer social benefits. In most related research, the total number of created jobs is used as the indicator of social benefits. Only a few of them quantify social benefits considering the different impact of economic activities in different locations. In this paper, a new method of measuring the social benefits of bioethanol supply chains is proposed that considers job creation, biomass purchase, and the different impacts of economic activities in different locations. A multi-objective mixed integer linear programming (MILP) model is developed to address the optimal design of a bioethanol supply chain that maximizes both economic and social benefits. The ε-constraint method is employed to solve the model and a set of Pareto-optimal solutions is obtained that shows the relationship between the two objectives. The developed model is applied to case studies in Liaoning Province in Northeast China. Actual data are collected as practical as possible for the feasibility and effectiveness of the results. The results show that the bioethanol supply chain can bring about both economic and social benefits in the given area and offers governments a better and more efficient way to create social benefits. The effect of the government subsidy on enterprises’ decisions about economic and social benefits is discussed.

scholarly journals Relationship between Urban Economic Connections and Geoeconomic Relations in Northeast China

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Zhenghui Zhu ◽  
Li Wang ◽  
Wanbo Liu ◽  
Dewei Qi
Keyword(s):  
Northeast China ◽  
Research Area ◽  
Liaoning Province ◽  
Distance Method ◽  
Central Cities ◽  
Economic Relations ◽  
Urban Economic ◽  
Cooperative Community ◽  
Economic Ties

Using Northeast China as the research area and three time nodes (2007, 2012, and 2017), the gravitational model and Euclidean distance method were used to measure the spatial economic connections and geoeconomic relations between four regional central cities and other small- and medium-sized cities. The complexity of urban economic relations was systematically analyzed based on matching urban economic connections and geoeconomic relations. This paper provides suggestions on how to strengthen and build a benign and sustainable urban economic relations system in Northeast China. The results of the study show that, from 2007 to 2017, the economic links between the four central cities and other cities continued to strengthen. Shenyang had the highest total of economic links, and Changchun, the fastest growth rate. From 2007 to 2017, the geoeconomic relations between the four central and other cities generally improved, shifting from competitiveness to complementarity. Competition intensified for Shenyang and Dalian with cities in Liaoning province, and their complementarity strengthened with cities outside the province. The relationship between the four central cities with other cities is to strengthen cooperation and complementarity. Therefore, the cities in Northeast China need to strengthen economic ties and the complementarity of geoeconomic relations and optimize the matching relationship. They should focus on the role of regional central cities in promoting the economic integration of the entire Northeast China and jointly promote the orderly urban niche system and full coordination. The formation and stability of the developing regional cooperative community are discussed.

Epidemiology of atrial fibrillation in northeast China: a cross-sectional study, 2017–2019

Heart ◽  
2019 ◽  
Vol 106 (8) ◽  
pp. 590-595 ◽  
Author(s):  
Liying Xing ◽  
Min Lin ◽  
Zhi Du ◽  
Li Jing ◽  
Yuanmeng Tian ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Rural Areas ◽  
Northeast China ◽  
Management Strategies ◽  
Cross Sectional Study ◽  
Liaoning Province ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
The Difference ◽  
Urban And Rural Areas

ObjectiveTo evaluate the epidemiology of atrial fibrillation (AF) in northeast China.MethodsThis cross-sectional survey using a multistage, stratified and cluster random sampling method was conducted in Liaoning Province between September 2017 and March 2019. A total of 18 796 participants (28.9% urban, 71.1% rural) aged ≥40 years were included. All participants completed a questionnaire and underwent a physical examination and ECG. AF was diagnosed according to history and ECG findings.ResultsThe overall AF prevalence was 1.1%; it increased steeply with age. AF was more prevalent in men than in women (1.5% vs 0.9%, p<0.001); however, the difference between urban and rural areas was not significant (1.3% vs 1.1%, p=0.228). Among the AF population, the overall AF awareness rate was 52.6%, higher in women than in men (61.5% vs 44.1%, p=0.011); however, the difference between areas was not statistically significant (60.0% vs 49.0%, p=0.129). According to the CHA2DS-VASc score, almost all (90.2%, 194/215) of our subjects required oral anticoagulant (OAC) therapy; however, only 4.1% actually received it. Moreover, hypertension (66.5%), dyslipidaemia (32.6%) and diabetes (24.2%) were highly prevalent in patients with AF, but their control rates were unacceptably low (7.0%, 8.6% and 28.8%, respectively).ConclusionsThe burden of AF in northeast China was substantial. Underuse of OAC therapy and uncontrolled comorbidities will likely contribute to the cardiovascular outcomes of patients with AF in the coming decades. Long-term management strategies for AF and related risk factors are required in northeast China.

scholarly journals Spatiotemporal Pattern and Aggregation Effects of Poplar Canker in Northeast China

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 454
Author(s):  
He Yan ◽  
Liyuan Chen ◽  
Quansheng Ge ◽  
Chengming Tian ◽  
Jixia Huang
Keyword(s):  
Incidence Rate ◽  
Northeast China ◽  
Large Scale ◽  
Predisposing Factors ◽  
Scan Statistics ◽  
Liaoning Province ◽  
Economic Losses ◽  
Spatiotemporal Pattern ◽  
Spatiotemporal Aggregation ◽  
Primary Cluster

Research Highlights: This study looks at poplar canker caused by Cytospora chrysosperma as a geographical phenomenon, and it applies spatial statistics to reveal the pattern and aggregation effects of the disease on a large scale in time and space. The incidence area of poplar canker in Northeast China has spatial (spatiotemporal) aggregation effects, which emphasize the importance of coordinated prevention. The results of spatial and spatiotemporal clusters can guide specific regional prevention and indicate the possible predisposing factors, respectively. Background and Objectives: Poplar canker, a harmful forest biological disease that is widespread throughout Northeast China, brings enormous ecological and economic losses. The limited cognition of its spatiotemporal pattern and aggregation effects restricts the decision-making for regional prevention and the identification of disease-inducing conditions. This study aims to explore the spatiotemporal pattern and to detect the aggregation effects of the disease, trying to provide references for prevention. Materials and Methods: According to the incidence data of poplar canker reported by each county in Northeast China from 2002 to 2015, we mapped the distribution of the incidence rate in ArcGIS and performed retrospective scan statistics in SaTScan to detect the spatial and spatiotemporal aggregation effects of the incidence area. Results: The spatiotemporal pattern of poplar canker’s incidence rate presents the characteristic of “outbreak-aggregation-spread-stability.” The incidence area of the disease when we performed spatial aggregation scan statistics showed the primary cluster covering Liaoning province (LLR = 86469.86, p < 0.001). The annual spatial scan statistics detected a total of 14 primary clusters and 37 secondary clusters, indicating three phases of aggregation. The incidence area of disease also shows spatiotemporal aggregation effects with the primary cluster located around Liaoning province, appearing from 2009 to 2015 (LLR = 64182.00, p < 0.001). Conclusions: The incidence area of poplar canker presents significant characteristics of spatial and spatiotemporal aggregation, and we suggest attaching importance to the clues provided by the aggregation effects in disease prevention and identification of predisposing factors.

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