期刊文献+
共找到4,634篇文章
< 1 2 232 >
每页显示 20 50 100
Integration of Mathematics History into Junior Middle School Education: A Pedagogical Approach to Enhance Mathematical Literacy
1
作者 Cheng Cheng 《Journal of Contemporary Educational Research》 2024年第3期69-72,共4页
The integration of the history of mathematics into junior middle school mathematics education represents a significant focus of international research in mathematics and education.The mathematics curriculum standards ... The integration of the history of mathematics into junior middle school mathematics education represents a significant focus of international research in mathematics and education.The mathematics curriculum standards for compulsory education have emphasized the importance of incorporating the history of mathematics,aiming to gradually integrate it into the mathematics classroom.However,in the practical implementation of junior middle school mathematics education,the effective combination of the history of mathematics with teaching methodologies remains largely unexplored.This article explores the integration of junior middle school mathematics education and the history of mathematics,aiming to provide classroom teaching recommendations for teachers and promote the formation of students’mathematical literacy. 展开更多
关键词 history of mathematics Junior middle school mathematics education Teaching methodologies
下载PDF
The Islamic Studies in China:Research in the Field of History
2
作者 Alimtohte Shiho 《Cultural and Religious Studies》 2024年第6期329-337,共9页
A history of the Islamic studies in China,not only includes studies on world Islam,it also includes research on Islam and Muslims in China.Before the Reform and Opening Up,China did not achieve much in this field,sinc... A history of the Islamic studies in China,not only includes studies on world Islam,it also includes research on Islam and Muslims in China.Before the Reform and Opening Up,China did not achieve much in this field,since then,the research field of Islam and Muslim in China has been expanding and the results have been published,forming a new trend.In this field,scholars such as Jin Yijiu,Li Xinghua,Qin Huibin,Zhou Guoli,Sha Qiuzhen,Zhou Xiefan,Wu Yungui,and Yang Huaizhong have made the most outstanding achievements.Especially in the collation of reference books and historical materials,in the past 20 years,The Encyclopedia of the history of Islam,The Chinese Encyclopedia of Islam have emerged,and the Chinese and World Encyclopedia of Islamic Law and other important historical books have been published.This paper focuses on the field of historical research and divided into academic research history at home and abroad,which is discussed from several fields such as general history,special history,national history,and regional history. 展开更多
关键词 Islamic studies China the field of history Chinese Islam world Islam
下载PDF
Combined Effects of Family History of Cardiovascular Disease and Serum C-reactive Protein Level on the Risk of Stroke: A 9.2-year Prospective Study among Mongolians in China 被引量:2
3
作者 ZHU Zheng Bao HUANGFU Xin Feng +8 位作者 ZHONG Chong Ke ZHOU Yi Peng TIAN Yun Fan BUREN Batu XU Tian WANG Ai Li LI Hong Mei ZHANG Ming Zhi ZHANG Yong Hong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2017年第9期632-640,共9页
Objective We aimed to evaluate the combined effect of a family history of cardiovascular disease(CVD) and high serum C‐reactive protein(CRP) on the stroke incidence in an Inner Mongolian population in China. Meth... Objective We aimed to evaluate the combined effect of a family history of cardiovascular disease(CVD) and high serum C‐reactive protein(CRP) on the stroke incidence in an Inner Mongolian population in China. Methods A prospective cohort study was conducted from June 2002 to July 2012, with 2,544 participants aged 20 years and over from Inner Mongolia, China. We categorized participants into four groups based on the family history of CVD and CRP levels. Results We adjusted for age; sex; smoking; drinking; hypertension; body mass index; waist circumference; and blood glucose, triglycerides, low‐density lipoprotein cholesterol, and high‐density lipoprotein cholesterol levels. Compared with the group with no family history of CVD/low CRP levels, the group with family history of CVD/high CRP levels had a hazard ratio(HR) of 1.78 [95% confidence interval(CI), 1.03‐3.07; P = 0.039] of stroke, and an HR of 2.14(95% CI, 1.09‐4.20; P = 0.027) of ischemic stroke. The HRs of hemorrhagic stroke for the other three groups were not statistically significant(all P 〉 0.05). Conclusion Participants with both a family history of CVD and high CRP levels had the highest stroke incidence, suggesting that high CRP levels may increase stroke risk, especially of ischemic stroke, among individuals with a family history of CVD. 展开更多
关键词 Family history of cardiovascular disease C‐reactive protein STROKE Prospective study
下载PDF
The Application of Geographic Information System(GIS) to the Study of Chinese History 被引量:1
4
作者 Zhang Ping Wu Lingwei 《Contemporary Social Sciences》 2019年第3期14-33,共20页
Historical geographic information system construction echoes the call of academic development in the information era and demonstrates the in-depth advancement of history studies. In recent years, an increasing number ... Historical geographic information system construction echoes the call of academic development in the information era and demonstrates the in-depth advancement of history studies. In recent years, an increasing number of data platforms have been built to facilitate historical information storage, display, management and analysis. In such a context, the geographic information system(GIS) begins to contribute to the study of Chinese history. Its contribution is highlighted in nine areas: historical climate, fluvial landforms, town economies, rural settlements, hydraulic societies, environmental changes, ancient cities, ancient maps and HGIS-enabled research methods. The application of GIS to the study of Chinese history initiates a reform in research methods and at the same time upgrades the philosophy of history studies, facilitating the utilization of a diversity of historical data(documents, ancient maps, remote-sensing images, archaeological information, etc.) for dynamic tracing and multi-factor comprehensive research. At present, restricted by traditional disciplinary boundaries, the construction of HGIS platforms remains slow and insufficient, making it difficult to extensively apply GIS to the study of Chinese history. 展开更多
关键词 HISTORICAL GEOGRAPHIC information system (HGIS) study of Chinese history research and application
下载PDF
A Study of Students' Opinions About History Subjects in the Social Studies Curriculum
5
作者 Hamza AKENGiN Meltem Elif CENDEK 《Journal of Literature and Art Studies》 2017年第10期1347-1353,共7页
关键词 历史学科 社会科学 课程框架 学生 科研 社会研究 人文学科 历史教训
下载PDF
A Brief Analysis on the Early History of Chinese- Tibetan Translators of Mathematics "
6
作者 Sonam, Dawa Tashi 《西藏大学学报(藏文版)》 2012年第1期113-119,共7页
关键词 历史 翻译 数学 早期 中国 西藏 组成部分 年代
下载PDF
Risk factors for the occurrence of insulinoma: a case-control study 被引量:3
7
作者 Han-Xiang Zhan Lin Cong +2 位作者 Yu-Pei Zhao Tai-Ping Zhang Ge Chen 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2013年第3期324-328,共5页
BACKGROUND: The etiology of insulinoma is poorly understood. Few studies investigated the possible roles of environmental factors and lifestyle in the pathogenesis of insulinoma. The aim of this study is to identify r... BACKGROUND: The etiology of insulinoma is poorly understood. Few studies investigated the possible roles of environmental factors and lifestyle in the pathogenesis of insulinoma. The aim of this study is to identify risk factors associated with occurrence of insulinoma in the Chinese population. METHODS: This study consisted of 196 patients with insulinoma and 233 controls. Demographic information of the patients and controls and risk factors of the disease were analyzed. Univariate and unconditional multivariable logistic regression analyses were made to estimate odds ratios (ORs) and possible risk factors. RESULTS: Approximately 68.88% (135/196) of the patients were from rural areas in contrast to 10.30% (24/233) of the controls (P【0.0001). This difference was confirmed by the multivariate analysis (OR=4.950; 95% CI: 2.928-8.370). Family history of pancreatic endocrine tumor (OR=16.754; 95% CI: 2.125-132.057) and other cancers (OR=2.360; 95% CI: 1.052-5.291) was also related to a high-risk population of insulinoma. CONCLUSION: Rural residents or people who have a family history of pancreatic endocrine tumor and other cancers are a high-risk population of insulinoma. 展开更多
关键词 INSULINOMA risk factors case-control study family history
下载PDF
Experimental study of the movement of control fluid in compound perforation
8
作者 Zhao Xu Liu Gonghui +1 位作者 Li Jun Ding Qingxin 《Petroleum Science》 SCIE CAS CSCD 2009年第4期389-394,共6页
The interaction between the high pressure gas and the control fluid and the movement mechanism of the control fluid in compound perforation were studied by a series of large-scale experiments, where the movement behav... The interaction between the high pressure gas and the control fluid and the movement mechanism of the control fluid in compound perforation were studied by a series of large-scale experiments, where the movement behavior of the control fluid was observed. The curves of measured pressure were analyzed, a mathematical model for the rigid movement of the control fluid was established, and the movement velocity of control fluid was analyzed. Moreover, the velocity from experimental results and velocity from an analytical solution were contrasted. The movement of the control fluid in the initial stage was similar to the rigid movement; however, the propagation of the pressure wave in the control fluid should be taken into account. Experimental results are significant for research on the movement mechanism of control fluid in compound perforation. 展开更多
关键词 Compound perforation experimental study control fluid gas and liquid interaction mathematical model
下载PDF
The History of the Derivation of Euler’s Number
9
作者 Mohsen Aghaeiboorkheili John Giuna Kawagle 《Journal of Applied Mathematics and Physics》 2022年第9期2780-2795,共16页
This paper summarizes the works of numerous inspiring hard-working mathematicians in chronological order who have toiled the fields of mathematics to bring forward the harvest of Eulers number, also known as Napiers n... This paper summarizes the works of numerous inspiring hard-working mathematicians in chronological order who have toiled the fields of mathematics to bring forward the harvest of Eulers number, also known as Napiers number or more infamously, e. 展开更多
关键词 Euler Number Napier Number history of mathematics
下载PDF
On the Combination of “The Textual Research on Historical Documents” and “The Comparative Study of Historical Data” —— and a Discussion on “The Law of Quan-ma and Gui-mei” in Chinese Language Studies
10
作者 Lu Guoyao 《宏观语言学》 2007年第1期46-59,共14页
In Chinese language studies, both “The Textual Research on Historical Documents” and “The Comparative Study of Historical Data” are traditional in methodology and they both deserve being treasured, passed on, and ... In Chinese language studies, both “The Textual Research on Historical Documents” and “The Comparative Study of Historical Data” are traditional in methodology and they both deserve being treasured, passed on, and further developed. It will certainly do harm to the development of academic research if any of the two methods is given unreasonable priority. The author claims that the best or one of the best methodologies of the historical study of Chinese language is the combination of the two, hence a new interpretation of “The Double-proof Method”. Meanwhile, this essay is also an attempt to put forward “The Law of Quan-ma and Gui-mei” in Chinese language studies, in which the author believes that it is not advisable to either treat Gui-mei as Quan-ma or vice versa in linguistic research. It is crucial for us to respect always the language facts first, which is considered the very soul of linguistics. 展开更多
关键词 the history of Chinese language methodology the Textual Research on HISTORICAL Documents the Comparative study of HISTORICAL Data Double-proof method the LAW of Quan-ma and Gui-mei
下载PDF
Is the Leader Effective in the Survival of the Managed Organization-a Case Study From the 20th Century
11
作者 Gábor Kertész 《Chinese Business Review》 2021年第6期189-195,共7页
We can find many cases in the scientific literature,where the leader(CEO)of a political or business organisation is being declared a"hero"or"damned"in the"court of history"upon his/her ac... We can find many cases in the scientific literature,where the leader(CEO)of a political or business organisation is being declared a"hero"or"damned"in the"court of history"upon his/her action(s).The case study presented here analyses a politician who was active in the first half of the 20th century,examining if his activity was ended with success or failure for the state he led.The analysis focuses only on the decisions taken in the two world wars that were relevant for the'survival'of the organization he led.I examine his decisions that were made in a non'business-as-usual'situation from the view if they helped or threatened the survival of the state he led in the short and long term.In a particular situation,the decision has to be taken by the leader there and then,and it may not be possible to change or improve the decision later on. 展开更多
关键词 CEO handling extreme situation consequence of the decision history case study
下载PDF
Study Tour of Chinese History and Culture
12
作者 By staff reporter FU ZHIBIN 《China Today》 1999年第10期46-49,共4页
关键词 study Tour of Chinese history and Culture
下载PDF
Studies on the History of Pangda Family in Markham
13
作者 Tugya 《China's Tibet》 2008年第6期20-26,共7页
The famous female writer Ma Lihua in her well- known book The Red Mountain Ranges in East Tibet described the social status and influence of the Pangda family.She wrote:"The famous Pangda family in Tibetan pre-mo... The famous female writer Ma Lihua in her well- known book The Red Mountain Ranges in East Tibet described the social status and influence of the Pangda family.She wrote:"The famous Pangda family in Tibetan pre-modern society stands on both 展开更多
关键词 Studies on the history of Pangda Family in Markham
下载PDF
Experimental and Numerical Study of Wave-Induced Long-Shore Currents on A Mild Slope Beach 被引量:14
14
作者 孙涛 陶建华 《China Ocean Engineering》 SCIE EI 2005年第3期469-484,共16页
The long-shore current distribution on a mild slope beach is studied by combining the numerical model and the physical experiment. The experiments of long-shore currents under the action of regular and irregular waves... The long-shore current distribution on a mild slope beach is studied by combining the numerical model and the physical experiment. The experiments of long-shore currents under the action of regular and irregular waves are conducted on mild beaches with different slopes in a wave basin. A numerical model is established, which includes a wave propagation model, a wave breaking model and a long-shore current model. The validity of the numerical model is proved by the comparison of its results with the results of the experimental model. It is concluded that the wave-ioduced long-shore current is influenced significantly by the incident wave height, the wave angle and the beach slope. Its application to the Bohai Bay indicates that the wave-induced currents have the same order of magnitude as the tide currents in the near-shore zone of mill slope beach. In the design of wastewater ouffall locations on a mild-slope beach with shallow water of the Bohai Bay, the position of the outfall should be 10 km away from the shoreline, which is outside of the surf-zone. 展开更多
关键词 wave-induced long-shore current experimental study mathematical model regular and irregular waves
下载PDF
Past and Future of Mathematical Geology 被引量:2
15
作者 Frederik P Agterberg 《Journal of China University of Geosciences》 SCIE CSCD 2003年第3期191-198,共8页
This is a brief review of alternative methods of problem-solving in geoscience with emphasis on the role of mathematical geology. It is desirable to maintain a clear-cut distinction between reliable facts which can be... This is a brief review of alternative methods of problem-solving in geoscience with emphasis on the role of mathematical geology. It is desirable to maintain a clear-cut distinction between reliable facts which can be stored in data banks and concepts that can be incorporated in the specifications of statistical models designed for specific purposes. If possible, subjective probabilities should be incorporated in hypotheses that are to be tested by statistical inference. 展开更多
关键词 mathematical geology history of geoscience use of computers conceptual models PROBABILITY STATISTICS
下载PDF
Characteristics of the Function of Ice Force on Vertical Cylindrical Piles 被引量:2
16
作者 史庆增 宋安 佟建峰 《China Ocean Engineering》 SCIE EI 2001年第3期437-443,共7页
A lot of tests on ice forces on vertical cylindrical piles are conducted in the ice basin of ice laboratory in Tianjin University to identify the characteristics of ice forces on fixed platforms in the Bohai Gulf. A f... A lot of tests on ice forces on vertical cylindrical piles are conducted in the ice basin of ice laboratory in Tianjin University to identify the characteristics of ice forces on fixed platforms in the Bohai Gulf. A function of ice forces is simplified on basis of test data, and the characteristics of the ice forces including the amplitude of the force and the breaking frequency of the ice sheet is detailed by use of the Fast-Fourier-Transform method, The results show that the ice breaking frequency presents a linear relationship with the ratio of ice moving velocity to ice thickness at low velocities. At high velocities, the frequency remains constant with the increase of the ratio of ice moving velocity to ice thickness. These conclusions are compared those published in literature. 展开更多
关键词 experimental study time history of ice force function of ice force ice breaking frequency AMPLITUDE
下载PDF
Prevalence of Family History of Cancer among Gastric Cancer Patients at Brazilian National Cancer Institute 被引量:1
17
作者 Tamara Figueiredo Maria Teresa Santos Guedes +5 位作者 Luis Paulo Souza e Souza Antonio Abílio Santa Rosa Antonio Carlos Accetta Maria Aparecida de Luca Nascimento Lais Santiago Deivite Danilo Ferreira Alcantara 《Health》 2017年第1期25-37,共13页
Background: Gastric cancer is the third most incident malignancy and the fifth leading cause of death in the world. In Brazil, it is the fourth most common tumour in men and the fifth in women. Familial aggregation of... Background: Gastric cancer is the third most incident malignancy and the fifth leading cause of death in the world. In Brazil, it is the fourth most common tumour in men and the fifth in women. Familial aggregation of this tumour is being studied and discussed by experts. Aim: Determine the frequency of family history of cancer in patients with gastric cancer, suggesting familial aggregation or increased risk for hereditary cancer syndromes. Methods: This is a retrospective cross-sectional study carried out from January 2011 to March 2015 at the Department of Abdominal and Pelvic Surgery of the Brazilian National Cancer Institute (INCA). Data were collected from electronic medical records and analyzed using SPSS Statistics? version 20. Results: 873 patients with gastric adenocarcinoma were analyzed. A family history of cancer was reported by 451 patients (51.6%), which reported cancer in 878 relatives, of which 110 (12.6%), reported having more than three relatives with any type of cancer. The most prevalent malignancies among these relatives were gastric cancer (21.3%) and breast cancer (9.5%). Conclusion: Most of the patients had cancer family history, being gastric cancer the most common. The high percentage of cancer family history confirms the importance of collecting this information, whose lack reflects professional negligence, as family history study can serve as a low-cost tool, favoring prevention and early diagnosis, situations where morbidity and mortality are smaller, thus reducing health costs and assistance and preserving lives. 展开更多
关键词 Stomach Neoplasms Family history HEREDITARY AGGREGATION Hospital Records Cross-Sectional Studies
下载PDF
Developing a Computer Program for Detailed Study of Planing Hull's Spray Based on Morabito's Approach 被引量:2
18
作者 Parviz Ghadimi Sasan Tavakoli +1 位作者 Abbas Dashtimanesh Arya Pirooz 《Journal of Marine Science and Application》 2014年第4期402-415,共14页
Recently, Morabito(2010) has studied the water spray phenomena in planing hulls and presented new analytical equations. However, these equations have not been used for detailed parametric studies of water spray around... Recently, Morabito(2010) has studied the water spray phenomena in planing hulls and presented new analytical equations. However, these equations have not been used for detailed parametric studies of water spray around planing hulls. In this paper, a straight forward analysis is conducted to apply these analytical equations for finding the spray geometry profile by developing a computer program based on presented computational process. The obtained results of the developed computer program are compared against existing data in the literature and favorable accuracy is achieved. Parametric studies have been conducted for different physical parameters. Positions of spray apex are computed and three dimensional profiles of spray are examined. It is concluded that spray height increases by an increase in the speed coefficient or the deadrise angle. Ultimately, a computational process is added to Savitsky's method and variations of spray apex are computed for different velocities. It is shown that vertical, lateral, and longitudinal positions of spray increase as the craft speed increases. On the other hand, two new angles are defined in top view and it is concluded that they have direct relation with the trim angle. However, they show inverse relation with the deadrise angle. 展开更多
关键词 计算机程序 研究开发 喷雾 速度系数 计算过程 三维轮廓 位置计算 喷射高度
下载PDF
A family history of diabetes is not associated with arterial stiffness in non-diabetic Japanese population
19
作者 Hirokazu Uemura Sakurako Katsuura-Kamano +4 位作者 Miwa Yamaguchi Mariko Nakamoto Mineyoshi Hiyoshi Fusakazu Sawachika Kokichi Arisawa 《Open Journal of Epidemiology》 2013年第4期177-183,共7页
Prevalent diabetes is at high risk for cardiovascular diseases and has a high familial inheritance. However, little is known whether a non-diabetic subject with a family history of diabetes is at high risk for vascula... Prevalent diabetes is at high risk for cardiovascular diseases and has a high familial inheritance. However, little is known whether a non-diabetic subject with a family history of diabetes is at high risk for vascular damage or not. The purpose of this study was to evaluate the association between a family history of diabetes and arterial stiffness in adult non-diabetic Japanese population. We analyzed eligible 787 non-diabetic subjects (502 men and 285 women) aged 35-69 years who enrolled in the baseline survey of a cohort study in Tokushima Prefecture, Japan and who underwent a brachial-ankle pulse wave velocity (ba-PWV) measurement. Information on individual life-style characteristics including medical history and treatment for diseases and a first-degree family history of diabetes was obtained through a structured self-administered questionnaire. Analysis of covariance and logistic regression analyses were used to evaluate the association between a family history of diabetes and ba-PWV. We found no differences in age-and-systolic blood pressure-adjusted and multivariate-adjusted means of ba-PWVs between subjects of both sexes with and without a family history of diabetes. Logistic regression analyses including both sexes also revealed that subjects with a family history of diabetes showed no differences in age-and-systolic blood pressure-adjusted and multivariate-adjusted odds ratios for high ba-PWV compared to those without that trait. Our results suggest that a family history of diabetes itself is not associated with arterial stiffness in adult non-diabetic Japanese population. 展开更多
关键词 ARTERIAL STIFFNESS Brachial-Ankle Pulse Wave Velocity Family history of Diabetes CROSS-SECTIONAL study
下载PDF
Open Approach-Based Subject Matter: A New Aspect of Mathematical Activity Fostering Students' Creativity 被引量:1
20
作者 Wipaporn Suttiamporn Suladda Loipha +1 位作者 Maitree Inprasitha Nongkhran Sasom 《Journal of Sociology Study》 2012年第5期386-396,共11页
关键词 数学活动 学生 创新能力 数学创造力 培养 序列分析 课堂学习 发散性思维
下载PDF
上一页 1 2 232 下一页 到第
使用帮助 返回顶部