Pingdingshan City Research Articles

顶山市城市社区养老托育服务供给状况研究——基于QCA 方法的组态分析

Population ageing has always been a topic of great concern, and in recent years, with the emergence of the declining birthrate, China's population structure is also facing new challenges. With the national policy of intergenerational integration of old-age care and childcare, Pingdingshan City has also begun to face the problem of how to develop old-age care and childcare. Among them, the problems are mainly manifested in the insufficient supply of professionals, medical and health services, and early childhood enlightenment education services. In view of these problems, this paper puts forward a number of suggestions to strengthen the construction of talent team, publicize the advantages of urban community elderly care services, connect multiple resources to enhance sustainable development capacity, and increase government financial and policy support, so as to promote the sustainable development of elderly care in Pingdingshan City.

Prediction of Rear-Seat-Belt Use among Older Adults

The efficacy of rear seat belts in safeguarding both rear- and front-seat passengers is well established; however, the use of rear seat belts in China remains suboptimal. Furthermore, automotive transportation holds significant importance for seniors in China. Consequently, it is necessary to analyze the factors affecting intention to use rear seat belts among Chinese seniors. This study applies the hierarchical regression model to investigate the effects of sociodemographic characteristics and constructs on older adults’ backseat seat-belt use intentions. A questionnaire survey was conducted in Pingdingshan City and 551 valid questionnaires were obtained. Results show that sociodemographic characteristics exhibit a limited influence on the intention to use rear seat belts, accounting for only 16.7% of the variance in intention. However, the incorporation of additional constructs can substantially augment the model’s explanatory capacity. After incorporating the exogenous constructs of the theory of planned behavior, the model’s explanatory power for behavioral intention increased to 46.9%. Subsequently, on the inclusion of susceptibility, severity, perceived benefit, and perceived law enforcement as additional factors, the model’s capacity to account for variance in behavioral intention further improved to 62.7%. Attitude, subjective norm, perceived behavioral control, susceptibility, severity, and law enforcement have significant impact on behavioral intention.

Occurrence and genotyping of Enterocytozoon bieneusi in flying squirrels (Trogopterus xanthipes) from China.

Enterocytozoon bieneusi is an obligate intracellular microsporidian parasite with a worldwide distribution. As a zoonotic pathogen, E. bieneusi can infect a wide range of wildlife hosts through the fecal-oral route. Although the feces of flying squirrels (Trogopterus xanthipes) are considered a traditional Chinese medicine (as "faeces trogopterori"), no literature is available on E. bieneusi infection in flying squirrels to date. In this study, a total of 340 fresh flying squirrel fecal specimens from two captive populations were collected in Pingdingshan city, China, to detect the prevalence of E. bieneusi and assess their zoonotic potential. By nested PCR amplification of the ITS gene, six specimens tested positive, with positive samples from each farm, with an overall low infection rate of 1.8%. The ITS sequences revealed three genotypes, including known genotype D and two novel genotypes, HNFS01 and HNFS02. Genotype HNFS01 was the most prevalent (4/6, 66.7%). Phylogenetic analysis showed that all genotypes clustered into zoonotic Group 1, with the novel genotypes clustering into different subgroups. To our knowledge, this is the first report of E. bieneusi infection in flying squirrels, suggesting that flying squirrels could act as a potential reservoir and zoonotic threat for E. bieneusi transmission to humans in China.

A Study on the Correlation between Self-directed Learning and Classroom Psychological Climate among Undergraduate Nursing Students

Objective: To study the correlation between self-directed learning ability and the classroom psychological atmosphere of undergraduate nursing students. Methods One hundred and sixteen undergraduate nursing students from a college in Pingdingshan City, Henan Province, were selected, and the study was carried out through the Chinese version of the Self-Directed Learning Rating Scale and the Class Psychological Atmosphere Scale. Results The total score of nursing undergraduate interns' self-directed learning ability was (221.43±10.59). The score of the class psychological atmosphere was (151.17±7.92), and self-directed learning ability and class psychological atmosphere were positively correlated (rs=0.793, P=0.000). Conclusion Nursing undergraduates' self-directed learning ability is at a medium level, the class psychological atmosphere is at a medium-high level, and the two are strongly positively correlated, so it is recommended that colleges and universities take direct or indirect ways to improve the class psychological atmosphere and promote students' self-directed learning ability.

Ultra-sensitive hexagonal wurtzite zinc oxide-based electrochemical sensor for specific recognition of environmental trace N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine

Emerging contaminant N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine has caused severe threats to ecosystems, necessitating the development of highly sensitive detection methods. Herein, a reliable and ultra-sensitive electrochemical sensor based on a carbon paste electrode modified by hexagonal wurtzite zinc oxide was developed for selective determination and degradation of N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine. Experimental results demonstrated the successful application of the sensor for detecting N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine in soil samples. The contaminant contents were found to be 1.46–24.68 nmol L−1 in Zhengzhou City and 1.99–11.3 nmol L−1 in Pingdingshan City, respectively, along with a satisfactory recovery rate. Density functional theory calculations revealed that the hexagonal wurtzite zinc oxide crystal significantly decreased the activation energy of catalytic conversion compared to cubic sphalerite, resulting in a notable improvement in sensor response. Cryogenic electron microscopy technique further confirmed that the electrocatalytic degradation product of N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine was not toxic N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone. Under optimal analysis conditions, the sensor achieved widely low as well as high linear ranges (0.1–800 nmol L−1 and 0.9–20 μmol L−1) with a low detection limitation (33 pmol L−1), indicating that such a highly sensitive and cost-effective electrochemical sensor has the potential for environmental pollutants monitoring.

系统仿真视角下平顶山市城市社区养老托育服务供给研究

With the increasing trend of aging and fewer children in society, China’s population structure is facing severe challenges. After the official implementation of the “Three Child Policy” in 2021, Pingdingshan City is facing the problems of how to provide effective community services, meet the needs of the elderly and children, and promote harmonious community development. In September 2022, Pingdingshan City formulated a comprehensive solution titled “one old and one little” to carry out supply side structural reform. The main content is to establish a bottom line through social security coordination, promote universal benefits, by mobilizing various forces from the government, market, and society to achieve a market-oriented coordinated development path. It has continuously made new progress in providing for the elderly and children. This article revolves around three dimensions: the supply and demand of urban community elderly care services, the factors that affect urban community elderly care, and policy suggestions. By studying literature and organizing data, a simulation model is established. Through model analysis, the influencing factors of the functional performance of the urban community elderly care service system are ultimately identified, and countermeasures and suggestions for improving the urban community elderly care service system are proposed. I hope it could ensure the supply and demand of future elderly care services, and find a balance between economic development and social security.

Development and experimental study of a long-time monitoring system for mine water damage electrical information

The change of mining stress often accompanies coal mining; these changes will affect the underground pressure water, destroy its original equilibrium state, increase the possibility of underground pressure water upward gushing, and then lead to the occurrence of mine water inrush accidents. A long-time monitoring system of mine water damage electrical information is developed to realize the long-time monitoring of mine underground pressure water. Based on the principle of resistivity tomography, this paper analyzes the method’s feasibility in inferring different geological distributions. Secondly, the long-time monitoring system of mine water damage electrical information is introduced. Finally, the stability and reliability of the instrument were proved by the simulation experiment, and the instrument was installed in the 17-33200 working face of Ping Coal No. 10 Mine, Pingdingshan City, Henan Province, China, for actual measurement to obtain the electrical information data of working face floor.

Heterogeneous rock mass detection in the Goaf underlying the Yingbin substation

The existence of heterogeneous rock mass in the goaf easily causes surface deformation, subsidence, and even collapse, which restricts the development of urbanization of the buildings above the goaf. Because of the saturation of the city and the shortage of power supply, the idea of building the Yingbin substation was proposed on the old coal mine goaf in Xinhua District, Pingdingshan City, Henan Province, China. To ensure the safety and stability of the foundation of the proposed substation, the comprehensive detection method was proposed, which is mainly based on transient electromagnetic detection and supplemented via drilling detection. It was used to determine the spatial position and location of heterogeneous rock mass in the goaf underlying the proposed substation. The results show that 1) after eliminating the interference to the transient electromagnetic detection, it is found that there are low-resistance anomalies near the depth of −160 m at points 1 to 2 and point 8 of the X2 line and at points 1 to 3 of the Y3 line, which are preliminarily presumed to be the influence of the heterogeneous rock mass. 2) The apparent resistivity anomalous areas of −160 and −200 m depth are highly consistent, and the location and scope of the heterogeneous rock mass were basically determined. 3) The abnormal depth range of core rate obtained by drilling is in good agreement with the abnormal range of apparent resistivity at the same location obtained by transient electromagnetic, which indicates the reliability of the detection results. 4) Combining the detection results of the two methods, the location and scope of the heterogeneous rock mass were basically determined, which is located in the western part of the proposed area. The detection results can provide a basis for the safety and stability of the proposed substation foundation. To ensure the safe and stable operation of the proposed substation foundation, effective governance measures for the heterogeneous rock mass of the goaf should be taken.

Space Construction Based on Place Spirit—— A Case Study of Wangtang Village

With the “constructive destruction” of rural land and landscape, rural areas gradually lack of regional characteristics and humanistic care.This paper takes Wangtang Village of Pingdingshan City in Henan Province as an example.From respecting the spirit of the place and the historical context, we will create a space with a sense of belonging, diverse functions and public participation.Hope to provide people with a sense of happiness, security, belonging, with a human place.

AUTOMATIC IDENTIFICATION METHOD OF CONSTRUCTION AND DEMOLITION WASTE BASED ON DEEP LEARNING AND GAOFEN-2 DATA

Abstract. Due to the relatively complex construction and demolition waste (C&DW) spectrum and texture, it is difficult to identify C&DW by simply constructing a remote sensing index. Therefore, this study proposes an automatic identification method of C&DW based on deep learning and the Gaofen-2 (GF-2) Data. Pingdingshan City and Jining City in China were selected as the research areas in the study. The dataset used for deep learning training and testing in the study area was captured by the GF-2 Data. On the basis of this dataset, the deep learning model DeepLabv3+ is used to identify C&DW. The overall accuracy rate of the deep learning model for identifying C&DW is 82.02%, and the overall mIoU is 82.39%. The accuracy of the model for the identification of C&DW areas is further verified by ground verification. The results of this study are helpful for the survey and management of C&DW, which is beneficial to the study of spatial and temporal distribution of urban C&DW, resource utilization and environmental pollution risk reduction.

Quantifying the Spatial Fragmentation Pattern and Its Influencing Factors of Urban Land Use: A Case Study of Pingdingshan City, China

In the context of rapid urbanization, the phenomenon of spatial fragmentation in Chinese inland central cities is significant. The scientific measurement and evaluation of urban spatial fragmentation are conducive to its transformation, advancement, and sustainable development. Based on the fractal dimension index and Shannon index, this study measures urban spatial fragmentation in terms of form and function, respectively. In addition, multi-scale geographic weighted regression (MGWR) is used to study the influencing factors of spatial fragmentation. The conclusions are as follows: ① the measurement results of spatial form fragmentation and functional fragmentation of urban built-up areas are consistent. The fragmentation degree of the new urban area (new urban district and high-tech district) is higher than that of the old urban areas, and the urban space fragmentation degree around railways and rivers is high. The urban space fragmentation degree of coal resource concentrated distribution areas in the north is lower. The cold spot area of the fragmentation phenomenon appears in the old urban area, and the hot spot area is in the new urban area and along the railway. ② The positive influencing factors of urban spatial fragmentation in Pingdingshan city are the NDVI and the distance from CBD. The negative influencing factor is the number of bus stops per unit area. The DEM and population density have no significant impact on urban fragmentation in Pingdingshan city. ③ Among the variables with significance, its influence has a certain spatial heterogeneity. The spatial scale from small to large is the number of bus stops per unit area, NDVI, and the distance from CBD. The degree of urban fragmentation is very sensitive to the number of bus stops per unit area and the impact scale is quite small. The spatial impacts of the NDVI and the distance from CBD are relatively stable. This study provides a reference and basis for the spatial development of built-up areas of inland central cities and promotes the transformation, advancement, and sustainable development of inland central cities.

Current Situation and Influencing Factors of Traditional Chinese Medicine Nursing Clinic in Henan Province.

Objective To explore the current situation and influencing factors of traditional Chinese medicine (TCM) nursing clinic in Henan Province. A self-made questionnaire was made and entered into the questionnaire star. In August 2020, through “the snowball sampling method,” the nursing branch of Henan Society of Traditional Chinese Medicine was used to calculate the sample size that would be further used for this study. Results Of the 370 medical institutions in 17 district-level cities in our province, 47 have set up TCM nursing clinics, accounting for 12.70%. From the perspective of regional distribution, there are 14 TCM nursing clinics in Zhengzhou, 8 in Luoyang, 6 in Kaifeng, 4 in Shangqiu, 3 in Jiyuan, and 3 in Zhoukou. The number of TCM nursing clinics in Jiaozuo City, Xinxiang City, Anyang City, Hebi City, Puyang City, Zhumadian City, and Nanyang City is relatively small, and there are no TCM nursing clinics in Pingdingshan City, Sanmenxia City, and Xinyang City. Among the 47 medical institutions offering TCM nursing clinics, there are 38 TCM hospitals, 5 integrated traditional Chinese and Western medicine hospitals, 3 Western medicine hospitals, and 1 ethnic medicine hospital. Among them, 31 medical institutions are tertiary care hospitals and 16 are secondary care hospitals. First-class and undetermined medical institutions do not set up TCM nursing clinics. (1) Management mode: among the 47 medical institutions, 26 medical institutions have separate nursing units, which are managed by the nursing department head nurse, and 13 medical institutions are managed by the director head nurse of the department. (2) Performance management: of the 47 medical institutions that set up TCM nursing clinics, 18 adopted independent accounting, 21 adopted secondary distribution of departmental performance, and 7 adopted average awards and other methods. (3) The process of seeing a doctor: there are three kinds of medical procedures: 124 medical institutions are treated by TCM nursing outpatients by hanging the consultation number of doctors in various departments. 210 medical institutions are treated by traditional Chinese medicine nursing outpatient nurses by hanging the consultation number of traditional Chinese medicine nursing outpatient doctors. Thirty-five medical institutions are retreated by hanging the number of nurses in the nursing clinic of TCM. (4) Allocation of human resources: in the survey of the total number of nurses in TCM nursing clinics in 74 medical institutions, the largest number of nurses was 46 in one of the TCM nursing clinics. In terms of personnel qualification requirements, 43 medical institutions put forward requirements for nurses' qualifications. Among them, 39 medical institutions have requirements for nurses' professional titles, 38 medical institutions have requirements for nurses working years, and 22 medical institutions have more specific requirements for nurses. For example, nurses are required to be the backbone of TCM nursing that includes specialist nurses, nurses who graduated from TCM colleges, and nurses who have obtained hospital assessment and certification. In terms of working years, 87.96% of medical institutions require nursing service of more than 5 years. The average number of TCM nursing technical projects offered by 47 medical institutions is about 10, a maximum of 34 and a minimum of 1. The commonly carried out TCM nursing techniques include scraping, auricular point pressing, cupping, moxibustion, and ear tip bloodletting, and among all of them, scraping technology is most important and 40 medical institutions offer this technology, followed by auricular point pressing technique, cupping, and moxibustion. Conclusion The construction of TCM nursing clinics in Henan Province has initially formed a scale, and all kinds of medical institutions at all levels should further strengthen the construction of TCM nursing clinics in all other provinces.

Research on the Protection and Reuse of Industrial Heritage from the Perspective of Public Participation—A Case Study of Northern Mining Area of Pingdingshan, China

With the decline of the big industrial period, many industrial cities in China are facing the problem of urban transformation. Post-industrial economic activities and social life often replace the demand for land and population growth, and the particular type of cultural heritage of industrial heritage is often abandoned and decayed. Recent domestic and foreign research has responded to this problem and sought to provide solutions for the protection and reuse of industrial heritage. Despite some progress, the advice and feelings of ordinary citizens are often rarely considered, or how local urban characteristics become the core of urban reconstruction. To solve this problem, the focus of this study is the case study of Pingdingshan City. Pingdingshan is an industrial city with coal as its core industry. Shortly, the problem of industrial heritage will be a severe problem facing the city. The study included research designs and methods for collecting data from field observations, questionnaires, interviews, and literature studies. In the process, researchers have critically considered the importance and implications of public participation in exploring the way in which they are protected and reused through the protection and reuse of industrial heritage. It is particularly worth mentioning that in the reconstruction of the protection and reuse of industrial heritage in Pingdingshan, government officials and enterprises lack sensitivity to local conditions and the views of residents. The study concluded that the protection and reuse of industrial heritage require public participation and that the public’s demands can guide and determine the way industrial heritage is protected and reused.

Comparative Analysis of Three Governance Modes for Resource-Based Urban Sustainability in China Based on Residents’ Perception: An Empirical Study of Pingdingshan City, Henan Province, China

With the continuous improvement and deepened reform of institutional mechanisms in resource-based cities (RBCs) in China, mining areas have become significant urban brownfields with typical geological hazards that cause serious pollution and other disasters like landslides and subsidence. Therefore, the governance of mining areas becomes a grant challenge for local governments to sustain urban development, and different governance approaches could result in diverse effects on urban sustainability, which have not been studied in current research. In the last twenty years, the governance model of mining areas in RBCs in China can be classified into government governance model (GGM), joint governance model (JGM), and market governance model (MGM). Based on the traditional theories, we innovatively propose a structural measurement and mechanism analysis of mine management efficiency from the perspective of residents’ perceptions by designing structural equation modeling (SEM) for spatial distribution issues. The main objective is to disclose the comparative advantages of three different mine governance models and the prerequisites and considerations for the application of the three governance models in the institutional environment with Chinese characteristics, in addition to the answers of pros and cons of the three types of governance models. We find: (1) the GGM plays a necessary, positive, and effective role in guiding the governance process, and has a high level of resident satisfaction in relation to the public interest of the masses, but a problem is that the favorable groups in the implementation process mainly include the middle and senior officers. (2) The JGM as a transition and supplement to the GGM, and many large serious governance problems that cannot be solved by the GGM are reasonably solved by JGM. Lastly (3), the MGM is very different from the above two governance models, as it just concentrates on the governance of storage, transportation, and public lands within mining areas that are directly relevant to enterprises’ benefits. It indicates the urgent reforming needs of current governance models for efficient governance by integrating government, enterprise, and local communities.

Distribution of diabetic retinopathy in diabetes mellitus patients and its association rules with other eye diseases

The study aims to explore the distribution characteristics and influencing factors of diabetic retinopathy (DR) in diabetes mellitus (DM) patients and association rules of eye diseases in these patients. Data were obtained from 1284 DM patients at Henan Provincial People’s Hospital. Association rules were employed to calculate the probability of the common occurrence of eye-related diseases in DM patients. A web visualization network diagram was used to display the association rules of the eye-related diseases in DM patients. DR prevalence in people aged < 40 years (≥ 58.5%) was higher than that in those aged 50–60 years (≤ 43.7%). Patients with DM in rural areas were more likely to have DR than those in urban areas (56.2% vs. 35.6%, P < 0.001). DR prevalence in Pingdingshan City (68.4%) was significantly higher than in other cities. The prevalence of DR in patients who had DM for ≥ 5 years was higher than in other groups (P < 0.001). About 33.07% of DM patients had both diabetic maculopathy and DR, and 36.02% had both diabetic maculopathy and cataracts. The number of strong rules in patients ≥ 60 years old was more than those in people under 60 in age, and those in rural areas had more strong rules than those in urban areas. DM patients with one or more eye diseases are at higher risks of other eye diseases than general DM patients. These association rules are affected by factors such as age, region, disease duration, and DR severity.

Role of Claudin-1 on diagnostic cut-off value and multiple tests in patients with papillary thyroid carcinoma

Objective: To explore the diagnostic cut-off value of Claudin-1 (Cla-1) in papillary thyroid carcinoma (PTC) and the efficacy of the multiple test. Methods: Clinical and pathological data were collected from 295 patients with PTC and 137 patients with benign thyroid lesions (BTL) admitted to two hospitals in Pingdingshan City, Henan Province from January 2015 to June 2020. The expression index of Cla-1, the positive expression rate of high molecular weight cytokeratin (HMW-CK) and the negative expression rate of leukocyte differentiation antigen 56 (CD56) were calculated according to the results of immunohistochemistry. Receiver operating characteristic (ROC) curve was used to determine the cut-off value of Cla-1 for diagnosing PTC. Cla-1+HMW-CK, Cla-1+CD56, HMW-CK+CD56 and Cla-1+HMW-CK+CD56 were tested in series, and the diagnostic efficacy was evaluated by sensitivity, specificity and accuracy. Results: The age of PTC patients M (P25, P75) was 48.0 (41.0, 55.0) years old, among which 230 cases were male (78.0%). The age of BTL patients M (P25, P75) was 53.0 (46.0, 61.0) years old, including 34 males (24.8%). Cla-1 detection was conducted in all PTC and BTL patients, whereas only 198 and 97 cases conducted HMW-CK detection, 242 and 136 cases conducted CD56 detection, respectively. The M (P25, P75) of Cla-1 expression index in PTC was 80.0% (45.0%, 90.0%), which was higher than that in BTL [0.0 (0.0, 2.0%)] (P<0.001). The positive expression rate of HMW-CK was 93.9% (186/198) in PTC, and was negative in all BTL. The negative expression rate of D56 was 89.7% (217/242) in PTC, higher than that of BTL [1.5% (2/136)] (P<0.001). When expression index 19.0% was set as the cut-off value of Cla-1 for diagnosing PTC, the area under the ROC curve (AUC) was the maximum [AUC (95%CI): 0.981 (0.969, 0.994)], and the sensitivity, specificity and accuracy were 92.2% (272/295), 98.5% (135/137) and 94.2% (407/432), respectively. In multiple tests for diagnosis of PTC, the sensitivity ranged from 89.3% to 94.7%, specificity were all 100.0% and accuracy ranged from 93.1% to 96.9%. Conclusion: Cla-1 expression index ≥19.0% could be set as a cut-off value for the diagnosis of PTC and serial test of Cla-1 combined with HMW-CK(CD56) improves diagnostic specificity.

Intellectualization of the urban and rural bus: The arrival time prediction method

Abstract To improve the intelligence of urban and rural buses, it is necessary to realize the accurate prediction of bus arrival time. This paper first introduced urban and rural buses. Then, the arrival time prediction was divided into two parts: road travel time and stop time, and they were predicted by the support vector regression method and k-nearest neighbor (KNN) method. A section of a bus route in Pingdingshan city of Henan province was taken as an example for analysis. The results showed that the method designed in this study had better accuracy, and the result was closer to the actual value, with a maximum error of 84 s, a minimum error of 10 s, an average error of 42.5 s, and an average relative error of 5.74%, which could meet the needs of passengers. The results verify the reliability of the designed method in predicting the arrival time of urban and rural buses, which can be popularized and applied in practice.

Classification of Pore-fracture Combination Types in Tectonic Coal Based on Mercury Intrusion Porosimetry and Nuclear Magnetic Resonance.

Differences in content, distribution, and connectivity of pores and fractures with different sizes in coal lead to different modes of gas migration. An accurate classification of pore–fracture combination types in coal can lay a foundation for studying gas migration. High-pressure mercury intrusion and nuclear magnetic resonance (NMR) experiments were conducted on coal samples collected from the Changping coal mine in Jincheng City, Shanxi Province, and Pingdingshan no. 4 mine in Pingdingshan City, Henan Province, China. The fractal dimensions of pores with different sizes were calculated using the Menger model. By combining the data with T2 spectra obtained by NMR, critical values for distinguishing diffusion pores from seepage pores–microfractures were determined. In addition, the main parameters affecting development of diffusion pores and seepage pores–microfractures and pore–fracture connectivity were analyzed, and a comprehensive evaluation index system for pores and fractures was established by selecting eight indices. Based on the method combining the analytical hierarchy process with multiparameter superposition, a method for determining critical values, establishing the evaluation index system, and classifying pore–fracture combination types was formed. The pore–fracture combination types in the test coal samples were classified according to the experimental data. The results indicate that the critical values for distinguishing diffusion pores from seepage pores–microfractures based on fractal dimensions obtained through mercury intrusion porosimetry and T2 spectra obtained by NMR are 72 nm and 2.5 ms, respectively. The studied coal samples can be classified into three combination types, separately characterized by high diffusivity and permeability and poor pore–fracture connectivity; low diffusivity, high permeability, and good pore–fracture connectivity; and low diffusivity and permeability and good pore–fracture connectivity. In the coal samples from the Changping coal mine, diffusion pores and seepage pores–microfractures are developed, while the connectivity between pores and fractures is poor. The coal samples from Pingdingshan no. 4 mine have undeveloped diffusion pores and seepage pores–microfractures but good connectivity between pores and fractures. The research results provide a method for classifying pore–fracture combination types in coal samples taken from different regions.

Clinical analysis of 12 cases of acute myeloid leukemia complicated with synchronous primary solid tumor

Objective: To explore the clinical characteristics of acute myeloid leukemia (AML) complicated with simultaneous multiple primary cancer (SMPC). Methods: The data of 12 AML patients with SMPC hospitalized in the Affiliated Cancer Hospital of Zhengzhou University, the First Affiliated Hospital of Nanyang Medical College, the Xinhua District Hospital of Pingdingshan City and the First People's Hospital of Pingdingshan City from March 2014 to July 2019 were analyzed retrospectively, and their clinical features, treatment and prognosis were summarized. Results: Among the 12 patients, there were 6 males and 6 females, with a median age of 58 years (39-70 years). AML classification: according to French-American-British (FAB) classification, the 12 AML patients were classified as M0 1, M1 1, M2a 5, M2b 1, M3 2, M5 2; according to National Comprehensive Cancer Network (NCCN) prognosis stratified, low risk group 1 case, medium risk group 4 cases, high risk group 7 cases; classification of solid tumors: 3 cases of lung cancer, 1 case of breast cancer, 2 cases of gastric cancer, 3 cases of esophageal cancer, 1 case of rectal neuroendocrine tumor, 1 case of invasive hydatidiform mole and 1 case of sigmoid colon cancer. The median time interval for the diagnosis of two primary malignant tumors was 4 (from 2.6 to 5.6) months. Results of gene mutation detection: AML prognostic gene detection results: a total of 12 kinds of gene abnormalities including ASXL1, JAK2, TET2, U2AF1, ABCB1, FLT3-ITD, RUNX1, SETBPIT, TET2 (single nucleotide polymorphism, SNP), p53, IKZF1 and IDH2 were detected, and solid tumor related genes were detected: a total of 4 kinds of gene abnormalities including Her-2, EGFR, K-RAS and MSI were detected. Survival: among the 12 patients, 1 case was lost during follow-up, 2 cases were still in treatment, 3 cases ended treatment and the condition was stable, 6 cases died. The median overall survival of 12 patients was 12.5 (from 3.8 to 48.0) months. Conclusions: It is not clear whether there is a certain correlation between the simultaneous occurrence of AML and solid tumors. Patients with AML and synchronous solid tumors are not unusual. Both tumors should be treated aggressively at the same time.

Establishment of Water Quality Prediction Model in Pingdingshan Region Based on Stochastic Theory - Markov Process

The stochastic theory - Markov process is used to predict the water quality of Zhan River in Pingdingshan City, and the water quality monitoring data of Zhan River in Pingdingshan City over the past ten years are used to verify the reliability of the model, which has provided some theoretical basis for the management decision team in the Pingdingshan region to make the water quality clear in Huai River Basin in 2010.