Analysis of Variation Characteristics of Precipitation Series from 1970 to 2019 in Qingyuan City by LIU Xuanxuan

“…In order to understand the variation characteristics of precipitation in Qingyuan City in recent decades,and realize the scientific management and utilization of water resources,based on the measured precipitation data of six representative hydrologic stations in Qingyuan from 1970 to 2019,this paper analyzes and studies the trend change,sudden change and periodic characteristics of annual precipitation in Qingyuan by moving average method,Mann-Kendall test method and Morlet wavelet analysis method.The results show that:The annual precipitation of Qingyuan Station and Zhukeng Station showed a decreasing trend,while that of Damiaoxia Station,Yingde Station,Yangshan Station and Lianxian Station showed an increasing trend,but the change was not significant.The sudden drop occurred around 1975 for Qingyuan Station and Yingde Station,around 2015 for Damiaoxia Station and Lianxian Station,around 1982 for Zhukeng Station.and around 1973 and 2015 for Yangshan Station.The precipitation series of each station has obvious alternation of wet and dry seasons.There are 3 to 4 main periods of precipitation at each station.The first and second main periods are generally 22 or 15 years,and the third and fourth main periods are generally 7 or 3 years.After 2015,the annual precipitation at each station turned into a decreasing trend.Currently,Qingyuan is in a period of low precipitation.…”
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Biogenic nanoparticles as a promising drug delivery system by Rehab M. Abdel-Megeed

“…Nanotechnology has significantly influenced the worldwide medical services sector during the past few decades. Biological collection approaches for nanoparticles are economical, non-toxic, and ecologically benign. …”
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Midair Gestural Techniques for Translation Tasks in Large-Display Interaction by Vera Remizova, Yulia Gizatdinova, Veikko Surakka

“…Midair gestural interaction has gained a lot of attention over the past decades, with numerous attempts to apply midair gestural interfaces with large displays (and TVs), interactive walls, and smart meeting rooms. …”
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The Form and Content of Ọbasa’s Weekly Newspaper: The Yorùbá News by Clement Adeniyi Akangbe

“…Published weekly, Obasa – the Editor and Proprietor – successfully edited ̣ The Yorubà News ́ for over two decades from 1924 – 1945 when he died. Adopting the Diffusion of Innovations theory, this study examines the form and content of the newspaper. …”
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Review on Molecular and Chemopreventive Potential of Nimbolide in Cancer by Perumal Elumalai, Jagadeesan Arunakaran

“…The previous studies carried out over the decades have shown that nimbolide inhibits cell proliferation and metastasis of cancer cells. …”
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Dödsstraffet i USA by Martin Bergqvist

“…The number of executions per year has increased substan­tially during the last decade, and there is reason to believe that the excessive use of the death penalty will continue. …”
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Arbuscular mycorrhizal fungi and salinity stress mitigation in plants by Mohammad Reza Boorboori, Lenka Lackóová

“…In recent decades, climate change has caused a decrease in rainfall, increasing sea levels, temperatures rising, and as a result, an expansion in salt marshes across the globe. …”
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Depression and anxiety symptoms among Afghan war widows and their associated factors: A cross-sectional analytical study by Naqib Ahmad Dost, Muhammad Haroon Stanikzai, Massoma Jafari

“…Background: The 4 decades of conflict have particularly exacerbated the mental health of Afghan war widows, a population that has not been extensively studied in this context. …”
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GREAT EURASIAN POWER IN THE WHIRLWIND OF CHANGE: RUSSIA’S MISSION IN THE 21st CENTURY by A. V. Torkunov

“…Moreover, the author believes that the main reason for that approach is the relatively stable international position of Russia (in terms of centuries, rather than decades).…”
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Coastal environmental changes in Ninh Thuan Province, South-Central Vietnam. by Bijeesh Kozhikkodan Veettil, Siham Acharki, Vikram Puri, Vanna Teck

“…The country's mangrove vegetation spans its entire coastline and has been depleted for decades in many regions. Notably, Vietnam's proactive stance on climate change mitigation received significant recognition during the 26th Conference of the Parties (COP26) to the United Nations Framework Convention on Climate Change. …”
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Militanza, “impegno” e critica sociale dell’antropologia sulla base di intense etnografie. Le intenzioni trasformative e i giudizi politici dell’antropologo by Antonino Colajanni

“…A following analysis is devoted to the intensive debate, diffused in Italy in the last decade, on an essay by Fabio Dei on the objections to the “radical critics to the State as an example of diffused and constrictive power”; and a specific attention is dedicated to an interesting book on the “militant anthropology”. …”
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Unknown presentation attack detection against rational attackers by Ali Khodabakhsh, Zahid Akhtar

“…Abstract Despite the impressive progress in the field of presentation attack detection and multimedia forensics over the last decade, these systems are still vulnerable to attacks in real‐life settings. …”
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Identification of Damage in a Beam Structure by Using Mode Shape Curvature Squares by S. Rucevskis, M. Wesolowski

“…During the last decades a great variety of methods have been proposed for damage detection by using the dynamic structure characteristics, however, most of them require modal data of the structure for the healthy state as a reference. …”
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Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil by Natacha Cíntia Regina Aleixo, João Cândido André da Silva Neto

“…It is concluded that the rainfall trend in the Middle Solimões did not demonstrate a predominant spatial pattern in the period analyzed except in a few individual seasons, but it demonstrated the greater presence in the last decade of standard dry and dry years…”
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Barriers and facilitators to implementing comprehensive sex education in Texas public schools: A qualitative study. by Lauren Holt, Sarah Janek, Gavin Yamey

“…<h4>Introduction</h4>In Texas, the adolescent birth rate is higher than the national average and STIs have steadily increased over the last decade. Sex education is not mandated in Texas and the majority of public schools provide an abstinence-based sex education. …”
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Colonoscopy ‘My Way’: Preparation, Anticoagulants, Antibiotics and Sedation by Jerome D Waye

“…In spite of this, physician attitudes concerning colonoscopy have changed little over the past several decades. The diet for precolonoscopic preparation has not been altered for 30 years. …”
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The evolution of marketing communication by Dalmé Mulder

“…However, the advent of technology and research, among other reasons, has made the marketing communication process increasingly sophisticated in recent decades and has given rise to integrated marketing communication (IMC) and the integrated communication phenomenon. …”
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A systematic review of research on pre-service TESOL teachers’ emotions by Saadet Korucu Kış

“…Concerning the demographic trends, the findings revealed that there has been an increase in the number of research articles within the last decade. Turkey and China are among the major contributing countries and the most frequently used research methodology is qualitative method. …”
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Seismic Fragility Assessment of an Isolated Multipylon Cable-Stayed Bridge Using Shaking Table Tests by Yutao Pang

“…In recent decades, cable-stayed bridges have been widely built around the world due to the appealing aesthetics and efficient and fast mode of construction. …”
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Integrated FEM-Multibody Co-Simulation of Additively Manufactured Hip Prosthesis containing cracks by Roberto Di Bona, Domenico Gentile, Giuseppe Peter Vanoli, Gabriel Testa, Sara Ricci

“…The increase in life expectancy and attention to the quality of life of elderly people spurred the need, in the last decades, to increase the capabilities of medical and surgical techniques. …”
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