ex
ex在名词和动词前面发音

ex在名词和动词前面发音
两种大情况:
1. 重音不落在第一个音节上,
a. 当ex后接一个元音字母,ex的发音为/igz/.如:example, exaggerate, executive.
b. 当ex后接一个辅音字母,ex读/iks/. 如:explain, express, expensive.
2、重音落在第一个音节上,ex的发音即为/eks/.如:exercise, execute, exit.
关于ex的发音:把e和x分开来看,先看e:ex为闭音节,若重读,则e发/e/;非重读,则e发/短i/。
再看x,在元音前发/gz/,在辅音前或词尾发/ks/,当然,有特殊的。
关于s在词中的发音:元音或浊辅音后发/z/,其他发/s/,同样有特殊的,问题中的俩就是。
多说一句:很多有多个发音的字母及字母组合,在单词中的发音往往是由它前后字母发音的强弱决定的。
ex的1个含义

ex的1个含义ex 的一个含义是“前”或“以前”。
这个词汇通常用在一些表示时间、地点或者顺序的搭配中,表达某个情况或者事件发生在现在或者叙述时之前的某个时间点或者位置。
首先,ex 可以表示时间上的“以前”。
当我们想要提到过去发生的事情或者某个时间点之前的时间时,可以使用ex 来表示。
比如,我们可以说:“我以前在这个城市住了两年。
”或者“他以前是我的同事,但是现在已经离职了。
”这些句子中的ex 就是指代过去的时间,表示在某个特定时间点之前的时期。
其次,ex 还可以表示地点上的“以前”。
当我们想要提到一个特定的地方或者位置之前的地方时,可以使用ex 来表达。
比如,我们可以说:“我们以前在纽约住过一段时间。
”或者“这个快餐店以前是一家咖啡馆。
”这些句子中的ex 就是指代在某个特定地点之前的位置。
此外,ex 还可以用于表示顺序上的“以前”。
当我们想要提到某个顺序中的先前事物或者事件时,可以使用ex 来表示。
比如,我们可以说:“这是我以前的手机,现在我有了新的。
”或者“这是第一期的杂志,下个月我们会有第二期。
”这些句子中的ex 就是指代前面一个或者一系列事物中的先前一个。
除了以上的用法之外,ex 还可以用来表示“举例”。
在这种情况下,ex 常常作为缩写形式表示“例如”或者“譬如”,用于列举一系列相似事物或者示例。
比如,我们可以说:“我喜欢很多运动,如足球、篮球、网球ex。
”或者“天气预报说明天会有很多雨,所以我要做好准备,带上雨伞ex。
”这些句子中的ex 就是表示列举例子的意思。
总而言之,ex 的一个含义是指前一个时间、地点或者顺序中的事物或者事件。
它可以表示过去的时间、地点或者顺序,或者用来举例说明。
在不同的语境中,ex 的具体含义可能会有所不同。
正因如此,我们需要根据上下文来理解和识别ex 的准确意义。
e的x次方运算法则

e的x次方运算法则本文将介绍e的x次方运算法则,包括定义、性质、证明和实际应用等方面。
e的x次方运算法则是数学中的一种重要的运算规律,具有广泛的应用价值。
一、定义e的x次方运算法则指数函数ey(x) = ex的简记。
由定义得知,当x为实数时,ey(x)表示实数e的x次方。
其中,e被称为自然常数,是一个无理数,约等于2.71828。
e的定义可以由方程 lim(1 + 1/n)n(n趋于无穷大)得到。
二、性质(1)指数函数具有幂运算的同样性质:ey(x+y) = ey(x)ey(y)(2)指数函数的零次幂等于1:ey(0) = 1(3)指数函数在x取负数时,等于指数函数的倒数:ey(-x) = 1/ey(x)三、证明(1)证明指数函数具有幂运算的同样性质:设y1 = ey(x+y),y2 = ey(x)ey(y),则y1/y2 =ey(x+y)/ey(x)ey(y) = e(x+y) - x - y = exexey - y = ex+y/ex 。
于是,只需证明ex+y = exey即可。
将y =0,x = z,得到ex+y = exey=exez=exex+zez = ey(x)ey(y)。
由此,证明了指数函数具有幂运算的同样性质。
(2)证明指数函数的零次幂等于1:设y = ey(0),则有y/y = ey(0)/ey(0) = e0 = 1。
所以y = 1。
由此,证明了指数函数的零次幂等于1。
(3)证明指数函数在x取负数时,等于指数函数的倒数:设y1 = ey(-x),y2 = 1/ey(x),则y1/y2 = ey(-x)ey(x) = e0 = 1。
于是,只需证明ey(-x)ey(x)=1即可。
证明方法一:因为ey(x) >0,所以1/ey(x) >0,故ey(-x)ey(x) = 1当且仅当ey(-x) = 1/ey(x)。
又由ex-y = 1/ey(x-y),当y = x 时,有ex-x = 1/ey(0) = 1,即ey(-x) = 1/ey(x),故得证。
ex函数求导公式

ex函数求导公式ex函数是一种常见的数学函数,用于求指数函数的导数。
它的导数公式可以用来求解很多实际问题,如物理、经济等领域的问题。
本文将介绍ex函数的导数公式及其应用。
ex函数的导数公式为:d/dx(ex) = ex。
这个公式表明,指数函数ex 的导数等于它本身。
这个公式非常简洁明了,但它却包含了很多重要的数学性质和应用。
我们来看一下这个公式的几何意义。
指数函数ex的图像是一条递增的曲线,它的斜率在每个点上等于这个点处的函数值。
也就是说,ex函数在每个点上的导数等于这个点处的函数值。
这个性质使得ex 函数在很多实际问题中有着重要的应用。
在物理学中,指数函数常常用来描述一些指数增长或指数衰减的现象。
比如,放射性元素的衰变过程、电容器的充放电过程等都可以用指数函数来描述。
而ex函数的导数公式就可以用来求解这些问题中的速率或变化率。
在经济学中,指数函数也有很多应用。
比如,复利计算中的利息增长、人口增长或衰退等都可以用指数函数来描述。
ex函数的导数公式可以用来求解这些问题中的增长率或变化率。
除了物理和经济领域,ex函数的导数公式还在其他领域有着广泛的应用。
比如,在生物学中,指数函数常常用来描述细胞的增殖过程;在计算机科学中,指数函数常常用来描述算法的复杂度等。
总结起来,ex函数的导数公式是一条非常重要的数学公式,它在各个领域都有着广泛的应用。
它的简洁性和几何意义使得它成为数学中的经典公式之一。
无论是在物理、经济还是其他领域,只要涉及到指数增长或指数衰减的问题,我们都可以利用ex函数的导数公式来求解。
通过理解和应用这个公式,我们可以更好地理解和解决实际问题。
在实际应用中,我们可以通过求导来求解ex函数在某个点上的斜率,进而得到函数在该点上的变化率。
这对于理解和分析指数增长或指数衰减的现象非常重要。
同时,ex函数的导数公式还可以应用于求解一些相关的问题,如求解函数的最大值、最小值等。
通过灵活运用这个公式,我们可以更好地解决各种实际问题。
ex气体允许范围

ex气体允许范围
EX气体(也称为可燃性气体)是指能够在特定条件下与空气或氧气发生燃烧反应的气体。
根据标准,EX气体的允许范围通常是指其浓度的上限和下限。
下限:EX气体的下限是指该气体能够形成可燃性混合物的最低浓度。
下限以下的浓度时,混合物中氧气的含量过多,无法燃烧。
上限:EX气体的上限是指该气体能够形成可燃性混合物的最高浓度。
上限以上的浓度时,混合物中氧气的含量过少,无法燃烧。
具体的允许范围取决于EX气体的种类和特性。
不同的气体具有不同的下限和上限浓度。
例如,甲烷的下限是5%,上限是15%;丙烷的下限是2.1%,上限是9.5%。
注意:对于一些特别易燃的气体,可能需要在更低的浓度下进行安全控制和预防措施。
因此,在使用或处理EX气体时,应遵循相关的安全规范和操作指引。
ex啥意思

ex啥意思
1、ex:英语词根
ex是英语词根,意思是前妻或前夫;以前的男朋友或女朋友;以前的性伴侣,如前妻。
2、ex:网络用语
ex,网络用语,意思是指前任,如前妻、前夫或者是以前的男朋友、女朋友,通常用语生活交流。
其实ex这个词在我们生活中大多数情况下是用来表述前任的意思。
因为这样的表述比较含蓄、方便,又不会让人感到尴尬,毕竟这是一个敏感话题。
3、ex:文件格式
ex文件是未知文件,一般应用在下载软件时,为了防止杀毒软件特别查杀,把原来的“exe”改为“ex”,改回exe就能用了。
或者ex文件为光盘文件,用虚拟光驱打开。
ex的读音规则

ex-的读音规则1. 以ex开头的词,无论ex后跟着什么字母,只要重音(包括次重音)落在第一个音节上,则ex的发音即为/eks/。
例:exercise,expert(专家,能手),extra(额外的),exhibition2. 以ex开头的词,若ex后接一个元音字母,且重音不落在第一个音节上,则ex的发音为/igz/。
例如:exact,exam,example,exist。
3. 以ex开头的词,若ex后接一个辅音字母,且重音不落在第一个音节上,则ex读/iks/。
例:excuse,expect,exchange,except,experience,experiment,explain,expose,express,expression_r_r_r,expensive,extend,extraordinary4. 读多了,这些发音规则就没有用了!!!1. 以字母组合ex开头的词,若ex后接一个元音字母(a, e, i, o, u)或不发音字母h,且重音不落在第一个音节上,则ex的发音为 /iɡz/。
例如:exact /ɪg'zækt/ 精确的,确实的;exam /ɪg'zæm/ 考试,测验;example /ɪg'zæmpl/ 例子,榜样;exist /ɪɡ'zɪst/ 存在,生存;exhibit /ɪɡ'zɪbɪt/ 陈列,展览;exhaust/ɪɡ'zɔst/ 竭尽,耗尽。
2. 以字母组合ex开头的词,若ex后接一个辅音字母,且重音不落在第一个音节上,则ex的发音为 /iks/。
例如:exchange /ɪks'tʃendʒ / 交换,交易;excuse / ɪk'skju/ 原谅,借口;expect / ɪk'spɛkt/ 预期,期望;except /ɪk'sɛpt / 除……外;experience /ɪk'sp ɪərɪəns/ 经历,经验;experiment /ɛk'spɛrɪmɛnt/ 实验;explain /ɪk'sple ɪn/ 解释,说明;expose /ɪk'spoz/ 使暴露,揭露;express /ɪk'spres/ 表达;expression /ɪk'spreʃ(ə)n/ 表达法,表情;extend /ɪk'stend/ 延展,伸展;expense /ɪk'spens/ 费用;expensive /ɪk'spensɪv/ 昂贵的;extraordinary /ɪk'strɔːd(ə)n(ə)rɪ/ 突出的,特别的。
ex和dx的运算公式

ex和dx的运算公式在数学的世界里,ex 和 dx 这两个概念可是相当重要的哟!咱们先来说说 ex ,这其实是指自然指数函数 e 的 x 次方。
e 这个数啊,可是个非常神奇的存在,它的值约等于 2.71828 。
那ex 这个函数呢,有着很多独特的性质。
比如说,它的导数还是它本身,这可太厉害了!再来讲讲 dx ,dx 通常在微积分里出现,代表着自变量 x 的微小变化量。
比如说,当我们计算一个函数的导数时,dx 就派上大用场啦。
就像我之前教过的一个学生小明,他一开始对 ex 和 dx 的运算公式那叫一个头疼。
有一次做练习题,遇到一个关于 ex 求导的题目,他愣是盯着题目看了半天,毫无头绪。
我就引导他一步一步来,先回忆 ex的导数还是 ex ,再结合题目中的条件去分析。
经过一番努力,小明终于搞明白了。
从那以后,他对这方面的知识越来越熟练,学习的劲头也更足了。
咱们接着说 ex 和 dx 的运算公式。
在求导运算中,如果函数是 y =ex ,那么它的导数就是 y' = ex 。
而对于复合函数,比如 y = ef(x) ,那就要用到链式法则啦,先对外面的 ex 求导,还是 ex ,再乘以里面 f(x) 的导数 f'(x) 。
在积分运算中,如果要对 ex 进行积分,那结果就是 ex + C ,这里的 C 是常数哟。
当涉及到 dx 时,如果是简单的函数 f(x)dx 的积分,那就要找到 f(x) 的原函数 F(x) ,积分的结果就是 F(x) + C 。
比如说,对于函数 f(x) = 2x ,它的原函数是 F(x) = x²,那么∫ 2xdx 就等于 x² + C 。
再复杂一点,如果是形如∫ f(x)g'(x)dx 的式子,可能就要用到分部积分法啦。
就像我们在生活中解决各种问题一样,有时候需要一步一步来,有时候需要换个思路。
学习 ex 和 dx 的运算公式也是这样,得多练习,多琢磨。
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If more than one paper has been published by the same author(s), in the same year, references to each should distinguished with letters following the year (Smith and Jones 2001a, b). The list of references appears alphabetically by primary author‟s last name. Examples:Journal: Iyengar BS, Dorr RT, Remers WA. (2004). Chemical basis for the biological activity of Imexon and related Cyanaziridines. J Med Chem 47:218-23.Book: Vyas SP, Khar RK. (2001). Targeted and controlled drug delivery. New Delhi,India: CBS Publisher and Distributor.Contribution to a Book: Chandrasekaran SK, Benson H, Urquhart J. (1978). Methodsto achieve controlled drug delivery: The biomedical engineering approach. In: Robinson JR, ed. Sustained and Controlled Release Drug Delivery Systems. NewYork: Marcel Dekker, 557-93Electronic Resources:Lin A-S, Shibano M, Nakagawa-Goto K, Tokuda H, Itokawa H, Morris-Natschke, SL, Lee K-H, (2007). Cancer Preventive Agents. 7. Antitumor-Promoting Effects of Seven Active Flavonolignans from Milk Thistle (Silybummarianum) on Epstein-Barr Virus Activation. Pharm Biol[Online] Available at: /doi/abs/10.1080/13880200701585592.Accessed on 12 April 2009.Abbreviations of journal titles should follow the style given by Index Medicus.TablesTables should be used only when they can present information more efficiently than running text. Care should be taken to avoid any arrangement that unduly increases the depth of a table, and the column heads should be made as brief as possible, using abbreviations liberally; abbreviations should be defined in the legends. Columns should not contain only one or two entries, nor should the same entry be repeated numerous times consecutively. Tables should be grouped at the end of the manuscript on separate pages.IllustrationsIllustrations (line drawings, halftones, photos, photomicrographs, etc.) should be submitted as digital files for highest quality reproduction and should follow these guidelines: 300 dpi or higherSized to fit on journal pageEPS, JPG, TIFF, or PSD format onlyLegends or captions for figures should be listed on a separate page, double spacedFor information on submitting animations, movie files and sound files or any additionalinformation including indexes and calendars please click here.For information on colour figures and charges please click here.Notes on StyleGeneral StyleAuthors are asked to take into account the diverse audience of the journal. Please avoid the use of terms that might be meaningful only to a local or national audience, or provide a clear explanation where this is unavoidable. However, papers that reflect the particularities of a social and cultural system are acceptable. Some specific points on style follow:1. Authors should write in clear, concise UK English. Language and grammar should beconsistent with Fowler's English Usage; spelling and meaning of words should conform to Webster's Dictionary.2. If English is not your native language please ensure the manuscript has beenreviewed by a native speaker. Please note: extensive rewriting of the text will not be undertaken by the editorial staff. Details of language editing services that can help non-native English speakers prepare their scientific paper can be found by clicking here.3. Latin terminology, including microbiological and species nomenclature, should beitalicised.4. Use standard convention for human and animal genes and proteins: italics for genesand regular font for proteins, and upper case for human products and lower case for animal products.5. “US” is preferred to “American”, “USA” to “United States”, and “UK” to “UnitedKingdom”.6. Double quotation marks rather than single are used unless the “quotation is …within‟another”.7. Punctuation of common abbreviations should adhere to the following conventions:“e.g.”; “i.e.”; “cf.”. Note that such abbreviations should not generally be followed by a comma or a (double) point/period.8. Upper case characters in headings and references should be used sparingly, e.g.only the first word of paper titles, subheadings and any proper nouns begin upper case; similarly for the titles of papers from journals in the references and elsewhere.9. Apostrophes should be used sparingly. Thus, decades should be referred to asfollows: “The 1980s [not the 1980‟s] saw …”. Possessives associated with acronyms(e.g. APU), should be written as follows: “The APU‟s findings that …” but note that theplural is “APUs”.10. All acronyms for national agencies, etc., should be spelled out the first time they areintroduced in text or references. Thereafter the acronym can be used if appropriate,e.g. “The work of the Assessment of Performance Unit (APU) in the early 1980s …”and subsequently, “The APU studies of achievement …”, in a reference“(Department of Education and Science [DES] 1989a)”.11. Brief biographical details of significant national figures should be outlined in the textunless it is quite clear that the person concerned would be known internationally.Some suggested editorial comments in a typical text are indicated in the following with square brackets: “From the time of H. E. Armstrong [in the 19th century] to the curriculum development work associated with the Nuffield Foundation [in the 1960s], there has been a shift from constructivism to heurism in the design of [British] science courses”.12. The preferred local (national) usage for ethnic and other minorities should be used inall papers. For the USA, “African-American”, “Hispanic” and “Native American” are used, e.g. “The Afr ican-American presidential candidate, Jesse Jackson …”; for the UK, “Afro-Caribbean” (not “West Indian”), etc.13. Material to be emphasised by italicisation in the printed version should be italicised inthe typescript rather than underlined. Please use such emphasis sparingly.14. Numbers in text should take the following forms: 300, 3000, 30 000 (not 30,000).Spell out numbers under 10 unless used with a unit of measure, e.g. nine pupils but 9 mm (do not use full stops (periods) within units). For decimals, use the form 0.05 (not .05, × 05 or 0× 05). “%” (not “per cent”) should be used in typescripts.15. Appendices should appear before the references section and after anyacknowledgements section. The style of the title is shown by the following example:“Appendix C: The random network generator”.Figures and tables within appendices should continue the sequence of numbering from the main body of the text. Sections within appendices should be numbered, for example, C.1, C.2. Equations in appendices should be numbered, for example, (C 1),(C 2). If there is only one appendix, it is referred to as “the appendix” and not called“Appendix A”.Abbreviations and nomenclatureFor abbreviations and nomenclature, authors should consult the latest edition of the CSE Style Manual available from the Council of Science Editors, 60 Revue Drive, Suite 500 Northbrook, IL, 60062, USA.MathematicsPlease click here for more information on the presentation of mathematical text.FootnotesFootnotes are not to be used except for designation of the corresponding author of the paper or current address information for an author (if different from that shown in the affiliation). Information concerning grant support of research should appear in a separate Declaration of interest section at the end of the paper. Acknowledgements of the assistance of colleagues or similar notes of appreciation belong in a separate Acknowledgements section.Footnotes to tables should be typed directly below the table and are indicated by the following symbols: * (asterisk or star), † (dagger), ‡ (double dagger), ¶ (paragraph mark), § (section mark), || (parallels), # (number sign). Reinitialise symbol sequence within tables.Editorial PoliciesAuthorshipAccording to the International Committee on Medical Journal Ethics (ICMJE), an author is defined as one who has made substantial contributions to the conception and development of a manuscript. Informa Healthcare adheres to the ICMJE guidelines (/#author), which state that “authorship credit should be based on all of the following: 1) substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data; 2) drafting the article or advising it critically for important intellectual content; and 3) final approval of the version to be published”1. All other contributors should be listed in the Acknowledgements section.All submissions are expected to comply with the above definition. Changes to the authorship list after submission will result in a query from the publisher requesting written explanation. Redundant publications and plagiarismXenobiotica considers all manuscripts on the strict condition that they have not been published already, nor are they under consideration for publication or in press elsewhere. Xenobiotica will not consider, in general, redundant publications, i.e. “publication of a paper that overlaps substantially with one already published in print or electronic media” (International Committee on Publication Ethics: /publishing_4overlap.html). This rule applies whether the overlapping papers are from the same authors or not.In addition, Informa has a strict policy against plagiarism. We define plagiarism as the use of extracts from another person's work that are not placed in quotation marks, without the permission of that person, and without acknowledgement to that person (using the appropriate reference style), with the result that your article presents these extracts as original to you. By submitting your work to an Informa Healthcare journal, you warrant that it is your original work, and that you have secured the necessary written permission from the appropriate copyright owner or authority for the reproduction of any illustration or other material.Paraphrasing, defined as “t aking portions of text from one or more sources, crediting the author/s, but only changing one or two words or simply rearranging the order, voice (i.e.,1 Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Writing and Editing for Biomedical Publication. Available at: /active vs. passive) and/or tense of the sentences” by the US Office on Research Integrity (/education/products/plagiarism/7.shtml), will not be accepted if found to be used extensively and to make up large sections of the manuscript. Extensive paraphrasing will not be deemed original work and will be viewed as redundant publication and/or plagiarism.Informa Healthcare adheres to the Code of Conduct and Best Practice Guidelines set forth by the Committee on Publication Ethics (COPE). As per these guidelines, failure to adhere to the above conditions will result in the editor and Informa publishing an appropriate correction, a statement of retraction, or enacting a withdrawal of the article. In extreme cases (e.g. when an article is retracted), offending authors will be reported to their institutio n‟s Ethics committee and may be banned from submitting to Informa Healthcare journals in the future. Please refer to the COPE website for the detailed workflows for handling allegations of plagiarism or redundant publication (/resources/flowcharts).Peer ReviewAll manuscripts will be subjected to confidential, anonymous peer review by experts in the field and, on the basis of reviewers‟ feedback, papers will be accepted unconditionally, accepted subject to revision or rejected.Ethics and ConsentDo not use patients' names, initials, or hospital numbers, especially in illustrative material. Identifying information should not be published in written descriptions, photographs, and pedigrees unless the information is essential for scientific purposesand the patient (or parent or guardian) gives written informed consent for publication.Informed consent for this purpose requires that the patient be shown the manuscript to be published.Papers including animal experiments or clinical trials must be conducted with approval by the local animal care or human subject committees, respectively (see below).To comply with FDAAA legislation, Informa Healthcare requires trial registration as a condition of publication for all studies involving clinical trials. Trial registration numbers should be included in the abstract, with full details provided in the methodssection.All manuscripts, except reviews, must include a statement in the Introduction or Materials and Methods section that the study was approved by an Investigational Review Board (Human Studies Committee or Ethics Committee or Animal Care andUse Committee), if applicable. Authors who do not have formal ethics review committees should include a statement that their study followed the principles stated in the Declaration of Helsinki (/e/policy/b3.htm).When a product has not yet been approved by an appropriate regulatory body for the use described in the manuscript, the author must specify that the product is not approved for the use under discussion or that the product is still under investigation.Further information on Ethics and Consent can be found by clicking hereCopyright and PermissionsIt is a condition of publication that authors assign copyright or license the publication rights in their articles, including abstracts, to Informa UK Ltd. This enables us to ensure full copyright protection and to disseminate the article, and the Journal, to the widest possible readership in print and electronic formats as appropriate. Authors may, of course, use the article elsewhere after publication without prior permission from Informa UK Ltd., provided that acknowledgement is given to the Journal as the original source of publication, and that Informa Healthcare is notified so that our records show that its use is properly authorised. Authors retain a number of other rights under the Informa UK Ltd. rights policies documents.Authors are required to sign an agreement for the transfer of copyright to the publisher. All accepted manuscripts, artwork, and photographs become the property of the publisher. A copyright agreement form can be downloaded by corresponding authors of accepted manuscripts on receipt of the proofs. This should be signed and returned to Informa Healthcare.Authors are themselves responsible for obtaining permission to reproduce copyright material from other sources.Further information on Permissions can be found by clicking here.Declaration of InterestIt is the policy of all Informa Healthcare, to adhere in principle to the Conflict of Interest policy recommended by the ICMJE. All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. It is the sole responsibility of authors to disclose any affiliation with any organization with a financial interest, direct or indirect, in the subject matter or materials discussed in the manuscript (such as consultancies, employment, paid expert testimony, honoraria, speakers bureaus, retainers, stock options or ownership, patents or patent applications or travel grants) that may affect the conduct or reporting of the work submitted. All sources of funding for research are to be explicitly stated. If uncertain as to what might be considered a potential conflict of interest, authors should err on the side of full disclosure.If there are no declarations, authors should explicitly state that there are none. This must be stated at the point of submission (within the manuscript, after the main text, under a subheading "Declaration of interest", and within the appropriate field on the journal's ScholarOne Manuscripts site). Manuscript submission cannot be completed unless a declaration of interest statement (either stating the disclosures or reporting that there are none) is included.This will be made available to reviewers and will appear in the published article. If any potential conflicts of interest are found to have been withheld following publication, the journal will proceed according to COPE guidance.The intent of this policy is not to prevent authors with any particular relationship or interest from publishing their work, but rather to adopt transparency such that reviewers, editors, the publisher, and most importantly, readers can make objective judgements concerning the work product.NIH/Wellcome Public and Open Access PoliciesIn consideration of the National Institutes of Health (NIH) and Wellcome Public and Open Access Policies, Informa Healthcare acknowledges that the broad and open dissemination of NIH/Wellcome-funded research results may benefit future scientific and medical research. Because we value the current and future contributions our journals make to the scientific body of knowledge, we have made certain that our policies accommodate those authors who wish to submit to PubMed Central.NIH policyNIH-funded authors must submit to PMC, at the point of acceptance, their peer-reviewed author manuscripts, to appear on PMC no later than 12 months after final publication.Click here or more information.Wellcome Trust policyWellcome-funded authors must submit to UKPMC, or have submitted on their behalf, at the point of acceptance, their peer-reviewed author manuscripts, to appear on UKPMC no later than 6 months after final publication.。