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Experiences of a Foreign Teaching Couple

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China Today 2003年第2期52卷 52-55页

作者： By john & WENDY preston

THE Chinese government has made serious efforts in recent years to upgrade the standard of English language learning (a core subject) in its high schools. One measure has been to invite native speakers to China to teach oral English. Here is the story -along with a few thoughts and reflections- of a married teaching couple partway through a 12-month teaching contract in western Hunan Province.

关键词：中国英语教学外国教师高等院校张家界旅游

An Induced Demand Model for High Speed 1 in UK

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Journal of Transportation Technologies 2013年第1期3卷 44-51页

作者： Francesca Pagliara john preston 不详

Induced travel is an important component of travel demand and increasing attention has been paid to building analytical model to get more precise travel demand forecasting. In general, induced demand can be defined in terms of additional trips that would be made if travel conditions improved (less congested, lower vehicle costs or tolls). In this paper the induced demand resulting from higher design speeds and, therefore by less travel time, for the High Speed 1 in UK will be modelled on the basis of the relationship between existing High Speed Rail demand (dependent variable) to existing High Speed Rail travel times and costs. The covariates include socioeconomic variables related to population and employment in the zones connected by the High Speed Rail services. This model has been calibrated by mean of a before and after study carried on the corridor, when the new High Speed Rail services was introduced. Elasticities of induced travel (trips and VMT) have been computed with respect to fares, travel time and service frequency.

关键词： High Speed Rail Induced Demand Regression Models Elasticities

哲学学习与维特根斯坦--雷丁大学哲学系普雷斯顿教授访谈录

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广西大学学报（哲学社会科学版） 2018年第6期40卷 1-7页

作者：约翰·普雷斯顿惠丽云宋琦冯潇雷丁大学哲学系办公室不详

雷丁大学哲学系教授约翰·普雷斯顿(john preston)曾是英国雷丁大学哲学系主任,是2015年华侨大学承办的中英美暑期哲学校的英方负责人,其专业领域是科学哲学、维特根斯坦哲学等。2017年4月,他再次访问华侨大学哲学与社会发展学院,开展... 详细信息

雷丁大学哲学系教授约翰·普雷斯顿(john preston)曾是英国雷丁大学哲学系主任,是2015年华侨大学承办的中英美暑期哲学校的英方负责人,其专业领域是科学哲学、维特根斯坦哲学等。2017年4月,他再次访问华侨大学哲学与社会发展学院,开展学术活动,几位三年级的哲学本科生用英文对他做了为期一个半小时的访谈,现翻译整理成中文。

关键词：普雷斯顿哲学史哲学写作比较哲学维特根斯坦

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选择铁路方式出行的阻碍因素综述

城市交通 2013年第6期11卷 80-94,65页

作者： Simon Blainey Adrian Hickford john preston 伍拾煤裴玉龙南安普顿大学交通研究小组哈尔滨工业大学交通科学与工程学院黑龙江哈尔滨150090

研究表明,即使铁路出行是最具有成本效益的出行方式,许多出行者仍然会选择其他出行方式。这表明选择铁路出行方式存在一些与费用无关的阻碍因素。本文对有关这些阻碍因素重要性的文献进行了综述,这些研究主要来自英国,但也有一部分来自... 详细信息

研究表明,即使铁路出行是最具有成本效益的出行方式,许多出行者仍然会选择其他出行方式。这表明选择铁路出行方式存在一些与费用无关的阻碍因素。本文对有关这些阻碍因素重要性的文献进行了综述,这些研究主要来自英国,但也有一部分来自于其他国家。共确认了37种不同的阻碍因素,它们可以被划分为"刚性因素"、"柔性因素"与"互补性因素"。出行者通常不会只考虑其中的单一阻碍因素,而是将这些阻碍因素看成一个整体,由此使得对最重要阻碍因素的确认十分困难。很多情况下,对于某一出行者来说,所有存在的阻碍因素都需要在出行方式转移之前解决。在思考不同阻碍因素的相对重要性后,对克服它们并实现其他出行方式向铁路转移的最有效措施提出了建议。这涉及主要的交通政策,因为它能够为有限的可利用资金确定目标市场,从而影响出行行为并提高出行方式的可持续性。

关键词：铁路出行方式转移认知一揽子政策小汽车依赖性

Scalable nanomanufacturing of surfactant-free carbon nanotube inks for spray coatings with high conductivity

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Nano Research 2015年第7期8卷 2242-2250页

作者： Colin preston Da Song Jaiqi Dai Zois Tsinas john Bavier john Cumings Vince Ballarotto Liangbing Hu Department of Materials Science and Engineering University of Maryland College Park College Park Maryland 20742 USA Department of Bioengineering University of Maryland College Park College Park Maryland 20742 USA Laboratory for Physical Sciences 8050 Greenmead Drive College Park Maryland 20740 USA

Spray-coated carbon nanotube films offer a simple and printable solution for fabricating low cost, lightweight, and flexible thin-film electronics. However, current nanotube spray inks require either a disruptive surfactant or destructive surface functionalization to stabilize dispersions at the cost of the electrical properties of the deposited film. We demonstrate that high-purity few-walled carbon nanotubes may be stabilized in isopropanol after surface functionalization and that optimizing the ink stability dramatically enhances the conductivity of subsequent spray-coated thin films. We consequently report a surfactant-free carbon nanotube ink for spray-coated thin films with conductivities reaching 2,100 S/cm. Zeta-potential measurements, used to quantify the nanotube ink dispersion quality, directly demonstrate a positive correlation with the spray- coated film conductivity, which is the key metric for high-performance printed electronics.

关键词： carbon nanotubes, surfactant-free ink spray coaing, high conductivity, zeta potential

Timing of percutaneous endoscopic gastrostomy tube placement in post-stroke patients does not impact mortality, complications, or outcomes

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2022年第5期13卷 77-87页

作者： Kavya M Reddy preston Lee Parul J Gor Antonio Cheesman Noor Al-Hammadi David john Westrich Jason Taylor Vatche and Tamar Manoukian Division of Digestive Diseases David Geffen School of Medicine at University of California Los AngelesLos AngelesCA 90095United States Department of Internal Medicine Santa Clara Valley Medical CenterSan JoseCA 95128United States Division of Gastroenterology and Hepatology Mercy HospitalSaint LouisMO 63141United States David john Westrich Jason TaylorDivision of Gastroenterology and HepatologySaint Louis University School of MedicineSaint LouisMO 63104United States Saint Louis University Center for Health Outcomes Research Saint Louis UniversitySaint LouisMO 63104United States

BACKGROUND Percutaneous Endoscopic Gastrostomy(PEG)tubes are often placed for dysphagia following a stroke in order to maintain sufficient caloric *** 2011 ASGE guidelines recommend delaying PEG tube placement for two weeks,as half of patients with dysphagia improve within 2 *** are few studies comparing outcomes based on timing of PEG tube placement,and there is increasing demand for early PEG tube placement to meet requirements for timely discharge to rehab and skilled nursing *** To assess the safety of early(≤7 d post stroke)vs late(>7 d post stroke)PEG tube placement and evaluate whether pre-procedural risk factors could predict mortality or *** We performed a retrospective study of patients undergoing PEG tube placement for dysphagia following a stroke at two hospitals in Saint Louis,MO between January 2011 and December *** were identified by keyword search of endoscopy ***,peri-procedural complication rates,and post-procedural complication rates were compared in both *** of morbidity and mortality such as protein-calorie malnutrition,presence of an independent cardiovascular risk equivalent,and presence of Systemic inflammatory response syndrome(SIRS)criteria or documented infection were evaluated by multivariate logistic *** 154 patients had a PEG tube placed for dysphagia following a stroke,92 in the late group and 62 in the early *** were 32 observed deaths,with 8 occurring within 30 d of the *** was an increase in peri-procedural and post-procedural complications with delayed PEG placement which was not statistically *** length of stay was significantly less in patients with early PEG tube placement(12.9 vs 22.34 d,P<0.001).Protein calorie malnutrition,presence of SIRS criteria and/or documented infection prior to procedure or having a cardiovascular disease risk equivalent did not significantly predict mortality or complicati

关键词： Percutaneous endoscopic gastrostomy tube Dysphagia Stroke Enteral nutrition Gastrostomy/adverse effect