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其实比饶毅更牛的回复是 Upenn 的 LAI JIANG5 A z$ q6 g) w' R5 X- i6 O% g
如果是中国长大的,英语能到这种程度真是很不简单。5 E! G9 p" C2 q k6 E i
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http://www.sas.upenn.edu/rappegroup/htdocs/People/LJ.html6 \' U; m+ X; b% T" V/ g+ R
$ d$ V4 q0 s& g. _6 BFROM LAI JIANG, Department of Chemistry, University of Pennsylvania* [1 k, O5 O6 j7 [; E- F
3 G3 I; n/ ?8 m2 g3 Y/ A. oIt is a shame to see Nature — which nearly all scientists, including myself
! E. ?0 \% S \ r( \3 V$ k; Z, regard as one of the most prestigious and influential physical-science; {: |. [4 p8 [ H1 V
magazines — publish a thinly veiled biased article like this. Granted, this& D2 m) {( I: t% [1 m# P2 p: J
is not a peer-reviewed scientific article and did not go through the$ ~: }$ o3 M6 R2 ?" p9 P
scrutiny of picking referees. But to serve as a channel for the general- U! N: n& I `- F: O5 ~$ k0 ?
populace to be in touch with and appreciate science, the authors and editors
9 s$ ~9 E: W; O9 L# ^) X# Lshould at least present the readers with facts within the proper context,
8 {# r6 ~+ x5 V: Kwhich they blatantly failed to do." u* E% Y9 |+ W" ~- T
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First, to identify Ye’s performance increase, Ewen Callaway compared her
8 k9 @6 }5 Y7 |; D. S6 e& B0 y* YOlympic 400-metre IM time with her performance at the World Championships in/ y# ^1 T) u: r' j
2011 (4:28.43 and 4:35.15, respectively) and concluded that she had an “
6 Q0 }8 k( A* A/ V. Eanomalous” improvement of around 7 seconds (6.72 s). In fact, her previous
; e3 u2 m2 Z/ Z9 k$ ipersonal best was 4:33.79 at the Asian Games in 2010. This leads to an9 o( W7 U* C- b4 }* h. Y
improvement of 5.38 seconds. In a sporting event in which 0.1 s can be the
+ m* K( Z2 U+ G5 Zdifference between the gold and silver medal, I see no reason for 5.38 s to
. }$ m/ ^. ~7 F; G' k0 hbe treated as 7 s.
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Second, as previously pointed out, Ye is only 16 years old and her body is
3 j6 k+ }0 T7 w/ G. M# q7 }! dstill developing. Bettering oneself by 5 seconds over two years may seem
. p) o3 q* y3 z/ ^impossible for an adult swimmer, but it certainly happens among youngsters.
7 @( h2 O) Z u+ Q3 i" ]An interview with Australian gold medallist Ian Thorpe revealed that his 400
+ J% W, i2 v! ^! |8 ~, Y-metre freestyle time improved by 5 seconds between the ages of 15 and 16." f8 M9 m+ w7 P$ B2 m1 Z% q( b
For regular people, including Callaway, it may be hard to imagine what an& G* S6 D5 K3 g8 Y6 ~, y$ K# y
elite swimmer can achieve as he or she matures and undergoes scientific and
2 s: h' R0 B2 Y1 p5 Apersistent training. But jumping to the conclusion that it is “anomalous”" N/ e7 Y z% T; p( \
based on ‘Oh that’s so tough I cannot imagine it is real’ is hardly sound.. d' j; {- h* x8 n+ k$ l! Y" }
$ R% L: o) h0 i; H% d7 QThird, to compare Ryan Lochte’s last 50 metres to Ye’s is a textbook
5 e, t' }4 C7 H3 Texample of ‘cherry-picking’ your data. Yes, Lochte was slower than Ye in! K$ e, E) ^4 ~2 o$ x
the last 50 metres, but Lochte had a huge lead in the first 300 metres, so
6 X/ P% w7 {& B+ `he chose not to push himself too hard and to conserve his energy for later
6 `% c. A F& L. c7 W9 y; Levents (whether this conforms to the Olympic spirit and the ‘use one’s% f8 f! {, ` V/ o: `
best efforts to win a match’ requirement that the Badminton World
6 `. s2 J& P$ K5 aFederation recently invoked to disqualify four badminton pairs is another
6 Y# z/ y3 A. Y* L8 u, Ftopic worth discussing, though probably not in Nature). Ye, on the other
! a: S) o! a7 u: x( q. ?. W5 g8 Rhand, was trailing behind after the first 300 metres and relied on freestyle4 W' c% a6 ~& t
, in which she has an edge, to win the race. Failing to mention this; ?; t0 f, t3 p, ?0 R5 V. O0 ]% B4 L
strategic difference, as well as the fact that Lochte is 23.25 seconds
/ H4 O2 Y$ ~# i, S6 A% vfaster (4:05.18) than Ye overall, creates the illusion that a woman swam
! ?6 H% ]8 O/ A! L% pfaster than the best man in the same sport, which sounds impossible. Putting
. ^4 a; h4 r6 t3 W' @ ^aside the gender argument, I believe this is still a leading question that6 x" P4 Z( Z% N
implies to the reader that there is something fishy going on.1 ?; u2 p3 r: B4 B
]" m$ v3 a0 J( H+ q& a9 AFourth is another example of cherry-picking. In the same event, there are
3 Y3 v8 _( [% v; Nfour male swimmers who swam faster than both Lochter (29.10 s) and Ye (28.93) }2 P& X' ]* A4 t1 \2 P4 O1 o
s) in the final 50 metres: Kosuke Hagino (28.52 s), Michael Phelps (28.44 s
# X4 l; t/ ^/ D$ S% f), Yuya Horihata (27.87 s) and Thomas Fraser-Holmes (28.35 s). As it turns
8 q; T, N- L+ \% t% w, Lout, if we are just talking about the last 50 metres in a 400-metre IM,0 _. ~0 I, Z2 J. D/ s. u
Lochter is not the example I would have used if I were the author. What kind
* l3 Z7 L& A4 y. Mof scientific rigorousness is Callaway trying to demonstrate here? Is it" V( S l z0 J% V1 a6 D; t
logical that if Lochter is the champion, we should assume that he leads in
& \+ H$ F3 E3 w# J- J* T0 Vevery split? That would be a terrible way to teach the public how science% Z; O. k+ r1 ]% [5 W
works.
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5 d8 ~; Z( O) g/ n0 uFifth is the issue I oppose the most. Callaway quotes Ross Tucker and
/ i: Y/ c$ R) T" ^" Pimplies that a drug test cannot rule out the possibility of doping. Is this( S' p9 i+ G; b% e% T$ m
kind of agnosticism what Nature really wants to teach its readers? By that/ Z* g: m) G9 \, h2 v1 n& |
standard, I estimate that at least half of the peer-reviewed scientific
$ Z0 u1 h4 r8 q& G/ C# w: M6 |papers in Nature should be retracted. How can one convince the editors and9 ^/ b0 a; Q% p+ r+ L U
reviewers that their proposed theory works for every possible case? One' D F4 m3 L! j' m
cannot. One chooses to apply the theory to typical examples and to
9 w9 j' ]3 M5 i! K- s8 idemonstrate that in (hopefully) all scenarios considered, the theory works
4 x/ c; [' k3 Y$ v" _6 W$ |to a degree, and that that should warrant publication until a counterexample, z- {2 [6 G* E3 k
is found. I could imagine that Callaway has a sceptical mind, which is; V' c8 D; c, G6 L5 `" w
crucial to scientific thinking, but that would be put to better use if he* r7 R9 p( p. U$ e: _" [: V
wrote a peer-reviewed paper that discussed the odds of Ye doping on a highly
1 S+ W7 h% m- y8 S+ o+ Tadvanced, non-detectable drug that the Chinese have come up with in the% ?$ O- R" b' @% U7 u
past 4 years (they obviously did not have it in Beijing, otherwise why not
( Z0 a$ h' w$ T0 e. H1 ^use it and woo the audience at home?), based on data and rational derivation0 U% i8 k/ e: x( Q7 h; t) b. D
. This article, however, can be interpreted as saying that all athletes are( g1 N# J$ X! {; L4 I
doping and the authorities are just not good enough to catch them. That may
5 U4 S* Q B) d1 ?8 |be true, logically, but definitely will not make the case if there is ever a
# V/ q0 O( K- g0 N2 Y/ k8 yhearing by the governing body for water sports, FINA, to determine if Ye% E t- w+ q' A0 E% H/ h
has doped. To ask whether it is possible to obtain a false negative in a
$ _1 r: S; \5 h- V ^) Z( udrug test looks like a rigged question to me. Of course it is possible:* H0 {: |0 o9 c' s
other than the athlete taking a drug that the test is not designed to detect: D+ K7 P5 }, h$ b# R# m) w) d0 y
, anyone who has taken quantum 101 will tell you that everything is
" g# K( G3 p6 N! v% H3 o% F! Aprobabilistic in nature, and so there is a probability that the drug in an
4 c& @$ ~# v: w4 c" p' U% l; U, Yathlete’s system could tunnel out right at the moment of the test. A slight: s6 a$ u% }7 {1 y* I
chance it may be, but should we disregard all test results because of it?- p) I! B6 L0 u E$ l
Let’s be practical and reasonable, and accept that the World Anti-Doping
+ ~: T7 k( @% B, c6 m Cagency (WADA) is competent at its job. Ye’s urine sample will be stored for3 A4 P, y! c5 ?0 s* `/ k; _0 C3 S# C" }
eight years after the contest for future testing as technology advances.* y- h7 v# d/ u: p& T1 S
Innocent until proven guilty, shouldn’t it be?
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Sixth, and the last point I would like to make, is that the out-of-: l& I! o5 g+ g- g" H$ l* g
competition drug test is already in effect, which Callaway failed to mention
! K; ~ z i4 T3 z1 A2 y. X# B. As noted in the president of WADA’s press release, drug testing for& z% ?/ i4 N; D0 `5 R& u
Olympians began at least six months before the opening of the London7 H. i' N7 W" Y0 E6 E1 H. \0 V; ~3 f
Olympics. Furthermore, 107 athletes have been banned from this Olympics for
/ K( q+ I; _% n( W8 ndoping. That may be the reason that “everyone will pass at the Olympic
* U# g' v8 i' E0 S) u6 tgames. Hardly anyone fails in competition testing” — those who did dope
& v3 V7 `: h% f+ j* u. g+ }' {have already been caught and sanctioned. Callaway is free to suggest that a
, X. g8 M2 q+ l$ ]' ^4 [player could have doped beforehand and fooled the test at the game, but this
0 C, H# f* D- s: V6 ^8 `possibility is certainly ruled out for Ye.
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, Y7 P2 S9 x7 [8 W$ E0 q+ N# _Over all, even though Callaway did not falsify any data, he did (3 t1 ~8 L4 ^# g1 q* d; a& H
intentionally or not) cherry-pick data that, in my view, are far too# D" O1 M' d8 c% z4 X5 z2 S+ j
suggestive to be fair and unbiased. If you want to cover a story of a
+ u5 X+ h! Z& W7 M' q% lsuspected doping from a scientific point of view, be impartial and provide# @6 n% m& t# n! P7 o. y! j# a
all the facts for the reader to judge. You are entitled to your
3 u6 q) W$ ?4 A* b: R5 Minterpretation of the facts, and the expression thereof in your piece,
9 d- o! f; {" m3 A' Q8 }9 ~# Eexplicitly or otherwise, but showing only evidence that favours your2 o9 m) [2 b; E, `+ z, l, d0 U; B
argument is hardly good science or journalism. Such an article in a journal
@. [8 P/ [5 {. [: I- R4 Ysuch as Nature is not an appropriate example of how scientific research or
) W# I9 P l3 D! A# kreporting should be done. |
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