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Falling sperm counts and global estrogenic pollution： what have we learned over 20 years？

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Asian journal of Andrology 2013年第2期15卷 159-161页

作者： david j Handelsman Trevor G Cooper ANZAC Research Institute Concord Hospital & University of Sydney Sydney New South Wales 2139 Australia Tuen Mun NT Hong Kong SAR PR ChinaGuest Editors for this special issue: Prof. DJ Handelsman

If scandal is the engine of progress in politics, and sensation is that of the media, while anti-modern panic is that of environmentalism, what is the dynamic of medical science？ Certainly discovery and invention represent the admirable high road, whereas competition and controversy represent the quotidian low road. This Special Issue is directed to reviewing the lessons learned from the most public, fervent and durable controversy in the short history of Andrology, the claims of world-wide falling sperm counts, due to global pollution by industrial estrogenic chemicals, published two decades ago.

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China Stroke Statistics 2019: a wealth of opportunities for stroke prevention

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Stroke & Vascular Neurology 2020年第3期5卷 240-241页

作者： j david Spence Stroke Prevention & Atherosclerosis Research Centre Western University Robarts Research Institute London Ontario Canada

The China Stroke Statistics published in this issue of the journal1 represent an enormous *** included data on 3010204 patients who had a stroke admitted in 2018 to 1853 tertiary care hospitals and compiled data from multiple sources on stroke and stroke risk factors in *** authors and the huge team of workers who must have compiled the statistics are to be commended on this enormous *** the report is a wealth of data on what is wrong in China to cause such a high risk of stroke but also a wealth of opportunity to make a *** reason this is so important is that~80%of strokes are preventable.

关键词： prevention admitted journal

Light scattering and surface plasmons on small spherical particles

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Light(Science & Applications) 2014年第1期3卷 182-195页

作者： Xiaofeng Fan Weitao Zheng david j Singh College of Materials Science and Engineering Jilin UniversityChangchun 130012China Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTennessee 37831-6056USA

Light scattering by small particles has a long and interesting history in ***,it continues to surprise with new insights and *** includes new discoveries,such as novel plasmonic effects,as well as exciting theoretical and experimental developments such as optical trapping,anomalous light scattering,optical tweezers,nanospasers,and novel aspects and realizations of Fano *** have led to important new applications,including several ones in the biomedical area and in sensing techniques at the single-molecule *** are additionally many potential future applications in optical devices and solar energy *** we review the fundamental aspects of light scattering by small spherical particles,emphasizing the phenomenological treatments and new developments in this field.

关键词： light scattering Mie theory nano-optics small particles surface plasmons

Ribozymes and the mechanisms that underlie RNA catalysis

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Frontiers of Chemical Science and Engineering 2016年第2期10卷 178-185页

作者： Timothy j. Wilson Yijin Liu david M. j. Lilley Cancer Research UK Nucleic Acid Structure Research Group MSI/WTB Complex The University of Dundee Dundee DD1 5EH UK

Ribozymes are widespread, and catalyze some extremely important reactions in the cell. Mechanistically most fall into one of two classes, using either metal ions or general acid-base catalysis. The nucleolytic ribozymes fall into the latter class, mostly using nucleobases. A sub-set of these use a combination of guanine base plus adenine acid to catalyze the cleavage reaction. New ribozymes are still being discovered at regular intervals and we can speculate on the potential existence of ribozymes that catalyze chemistry beyond phosphoryl transfer reactions, perhaps using small-molecule coenzymes.

关键词： RNA catalysis RNA structure catalytic mechanism

Agroecological management of a soil-dwelling orthopteran pest in vineyards

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Insect Science 2018年第3期25卷 475-486页

作者： jerry Asalma Nboyine Stephane Boyer david j. Saville Stephen david Wratten Bio-Protection Research Centre Lincoln University Christchurch New Zealand CSIR Savanna Agriculture Research Institute Tamale Ghana Environmental and Animal Sciences Unitec Institute of Technology Auckland New Zealand Saville Statistical Consulting Limited Lincoln New Zealand

The efficacy of different combinations of undervine and inter-row treatments for managing a soil-dwelling orthopteran pest, weta （Hemiandrus sp.）, in vineyards was investigated over 2 seasons. This insect damages vine buds, thus reducing subsequent grape yield. The undervine treatments comprised pea straw mulch, mussel shells, tick beans [Viciafaba Linn. var minor （Fab）], plastic sleeves on vine trunks （treated control） and control （no intervention）, while inter-rows contained either the existing vegetation or tick beans. Treatments were arranged in a randomized complete block design with 10 replicates. Data were collected on weta densities, damage to beans and components of yield. The latter were numbers of bud laid down per vine, shoots per bud, clusters per shoot, grape bunches per vine, bunch weight and yield. The undervine treatments significantly affected all variables except the number of shoots per bud. In contrast, none of the variables was significantly affected by the inter-row treatments or their interaction with undervine treatments, apart from weta density. At the end of the experiment, weta density in the shell treatment was about 58% lower than in the control. As a result, there was about 39% significant yield increase in that treatment compared to the control. Although the undervine beans and sleeves treatments increased yield, there were no reductions in weta density. With undervine beans, the insect fed on the bean plants instead of vine buds. Thus, yield in that treatment was approximately 28% higher than in the control. These results demonstrate that simple agroecological management approaches can reduce above-ground damage by soil-dwelling insects.

关键词： cover crops grapevine yield pest management soil-dwelling insects vineyards yield loss

Performance of activated carbon coated graphite bipolar electrodes on capacitive deionization method for salinity reduction

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Frontiers of Environmental Science & Engineering 2020年第6期14卷 87-96页

作者： Hossein D.Atoufi Hasti Hasheminejad david j.Lampert School of Civil and Environmental Engineering Oklahoma State UniversityStillwaterOK 74078USA Department of Civil Engineering Isfahan University of TechnologyIsfahan 84156-83111Iran

This research investigates a capacitive deionization method for salinity reduction in a batch reactor as a new approach for *** of cost and energy compared with conventional desalination methods are the significant advantages of this *** this research,experiments were performed with a pair of graphite bipolar electrodes that were coated with a one-gram activated carbon *** completing preliminary tests,the impacts of four parameters on electrical conductivity reduction,including(1)the initial concentration of feed solution,(2)the duration of the tests,(3)the applied voltage,and(4)the pH of the solution,were *** results show that the maximum efficiency of electrical conductivity reduction in this laboratory-scale reactor is about 55%.Furthermore,the effects of the initial concentration of feed solution are more significant than the other ***,using the capacitive deionization method for water desalination with low and moderate salt concentrations(i.e.,brackish water)is proposed as an affordable *** with conventional desalination methods,capacitive deionization is not only more efficient but also potentially more environmentally friendly.

关键词： Capacitive deionization(CDI) Desalination Electrical conductivity(EC) Graphite bipolar electrode Activated carbon coated(ACC)

Search for potential K ion battery cathodes by first principles

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journal of Energy Chemistry 2021年第3期30卷 377-385页

作者： Kaining Li Xiaofeng Fan david j.Singh WTZheng Key Laboratory of Automobile Materials(jilin University) Ministry of Educationand College of Materials Science and EngineeringJilin UniversityChangchun 130012JilinChina Department of Physics and Astronomy University of MissouriColumbiaMO 65211-7010USA Department of Chemistry University of MissouriColumbiaMO 65211USA State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun 130012JilinChina

An important challenge facing K-ion batteries lies in exploring earth-abundant and safe cathode materials that can provide high capacity with high migration rate of K ***,we propose a simple and efficient method for searching potential K cathode materials with first principles *** screening is based on combinations of weight capacity,K ion occupation ratio,volume change per K,and valence *** this screening method we predicted a series of potential K ions cathodes with favorable electrochemical performance,such as K_(2)VPO_(4)CO_(3)-like structures with 1 D diffusion channels,3 D channel structures K_(2)CoSiO_(4),layered materials KCoO_(2),KCrO_(2),KVF_(4) and K_(5)V_(3)F_(14),and *** potential cathodes have small volume changes,suitable voltage,and high capacity,with small diffusion *** may be useful in K-ion batteries with high energy density and rate performance.

关键词： K ion battery Cathodes First principles calculations High capacity with high migration rate Diffusion barriers

Protecting Against Address Space Layout Randomisation (ASLR) Compromises and Return-to-Libc Attacks Using Network Intrusion Detection Systems

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International journal of Automation and computing 2011年第4期8卷 472-483页

作者： david j Day Zheng-Xu Zhao School of Computing and Mathematics University of Derby Derby UK Faculty of Information Science and Technology Shijiazhuang Tiedao University Shijiazhuang PRC

Writable XOR executable （W⊕X） and address space layout randomisation （ASLR） have elevated the understanding necessary to perpetrate buffer overflow exploits [1] . However, they have not proved to be a panacea [1 3] , and so other mechanisms, such as stack guards and prelinking, have been introduced. In this paper, we show that host-based protection still does not offer a complete solution. To demonstrate the protection inadequacies, we perform an over the network brute force return-to-libc attack against a preforking concurrent server to gain remote access to a shell. The attack defeats host protection including W⊕X and ASLR. We then demonstrate that deploying a network intrusion detection systems （NIDS） with appropriate signatures can detect this attack efficiently.

关键词： Buffer overflow stack overflow intrusion detection systems (IDS) signature rules return-to-libc attack pre-forking.

Penile reconstruction

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Asian journal of Andrology 2013年第1期15卷 16-19页

作者： Giulio Garaffa Salvatore Sansalone david j Ralph St Peter's Andrology London WIG 6B J UK Tor Vergata University Rome 00133 Italy

During the most recent years, a variety of new techniques of penile reconstruction have been described in the literature. This paper focuses on the most recent advances in male genital reconstruction after trauma, excision of benign and malignant disease, in gender reassignment surgery and aphallia with emphasis on surgical technique, cosmetic and functional outcome.

关键词： female to male transsexuals fibrosis free flaps glans reconstruction glans sculpture lichen sclerosus lymphoedema of the genitalia penile prosthesis Peyronie's disease phalloplasty scrotoplasty shaft reconstruction skin graft penile reconstruction