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Thu Dec 02 23:26:59 AEDT 2021
From /weblog/science
body-hacks-life-is-trying-to-hide-from-you - http://list25.com[..]ife-is-trying-to-hide-from-you/?view=all why-we-stretch - https://www.zmescience.com/science/why-we-stretch-2853496 causes-dark-circles-eyes-sleeping-people-really-tired - http://www.todayifoundout.com[..]s-sleeping-people-really-tired/?view=all facts-about-the-human-body-you-may-not-be-aware-of - http://list25.com[..]n-body-you-may-not-be-aware-of/?view=all blood - http://list25.com[..]you-might-not-know-about-blood/?view=all misconceptions-about-your-body - http://list25.com[..]bout-your-body-that-arent-true/?view=all pregnancy - http://list25.com[..]nge-the-way-you-view-pregnancy/?view=all blindness - http://list25.com[..]you-didnt-know-about-blindness/?view=all happen-to-your-body-after-you-die - http://list25.com[..]pen-to-your-body-after-you-die/?view=all your-body-is-weirder-than-you-think - http://list25.com[..]body-is-weirder-than-you-think/?view=all http://list25.com[..]-that-make-absolutely-no-sense/?view=all 「人體農場」：聽屍體說話 - http://thestandnews.com[..]%BD%E5%B1%8D%E9%AB%94%E8%AA%AA%E8%A9%B1/ http://thestandnews.com[..]8%82%89%E9%AA%A8%E6%9F%A5-q-a-episode-4/ Albinism - http://list25.com/25-facts-about-people-with-albinism/?view=all 為什麼人類的耳朵長成這樣 - http://cn.wsj.com/big5/20161014/LIF115719.asp oxytocin - http://list25.com[..]us-facts-about-oxytocin-that-youll-love/ About vaginas - http://list25.com/25-things-you-are-ashamed-to-ask-about-vaginas/ http://list25.com/25-strange-things-your-body-says-about-you/ Almost everything we know about salt may be wrong. Eating salt actually makes you less thirsty but hungrier - http://www.zmescience.com[..]ence/salt-makes-you-less-thirsty-423432/ 從進化的角度來看，幼年就是一段專門為了學習而存在的時期。在成人的庇護下，幼兒唯一的任務就是學習，他們無需操心是否要真的做出點成就來。而成人更注重的則是利用現有知識，快速有效地行動。抑制性化學物質對這一趨勢可能是有利的。自然之道的運行自有其信條：“沒壞就不用修。”既然如此，那麼大腦工作得順順當當，自然也就沒必要去改變它。 - http://cn.wsj.com/big5/20170721/LIF150315.asp?source=rss According to scientists, these are the three kinds of smile - http://www.zmescience.com/science/types-of-science-31072017/ alleles - http://www.zmescience.com/medicine/genetic/alleles-make-us What will happen after getting shot? - http://list25.com/25-shocking-facts-about-getting-shot/ “What’s happening with the baby is that a lot of the information is escaping even as the baby is trying to get it organized and stabilized.” In early infancy, a lot of experiences never become memories—they slip away before they can be preserved. - http://www.zmescience.com[..]why-we-cant-remember-before-age-3-05435/ human-digestion-system - http://list25.com[..]igestion-system-you-probably-didnt-know/ “信息時代的到來似乎已經創造了感覺自己無所不知的一代人，”學者們得出結論，儘管“他們對周圍世界的了解之少可能達到了前所未有的程度”。 - http://cn.wsj.com/big5/20171103/OPN165757.asp?source=rss Human touch can feel molecule-thin differences, study reports - https://www.zmescience.com[..]-molecule-thin-differences-study-reports It is about smell - https://www.zmescience.com[..]ws-science/science-gut-feelings-08012017 Hypnosis - https://list25.com[..]facts-about-hypnosis-youll-want-to-know/ allergies - https://www.zmescience.com/other/feature-post/how-allergies-work/ 200 hours to make best friends - https://www.zmescience.com/science/hours-best-friend-042342 How body-heals-wound - https://www.zmescience.com/other/feature-post/body-heals-wound mummification - https://www.zmescience.com[..]ng-mummification-everything-wanted-know/ https://www.zmescience.com/science/cute-things-feature 無意識偏見會左右大腦認知，研究：人類沒有想像中那麼理性 - https://dq.yam.com/post.php?id=9284 timeline-human-evolution - https://www.zmescience.com/science/timeline-human-evolutio-423 https://www.zmescience.com[..]r/science-abc/how-fast-hair-grows-042394 在雙語轉換上，關閉舊語言比啟動新語言更需要大腦認知努力 - https://dq.yam.com/post.php?id=4241 https://www.zmescience.com[..]e/news-science/human-blink-why-25092018/ https://www.zmescience.com[..]an-handle-the-truth-more-than-you-think/ http://www.bbc.com[..]t-people-live-life-span-versus-longevity https://www.zmescience.com[..]ce/news-science/hugs-protect-mood-05423/ yawning - https://www.zmescience.com[..]post/yawning-science-contagious-01102019 https://www.zmescience.com[..]-a-greater-tendency-for-disorders-though https://www.zmescience.com[..]edicine/how-muscle-memory-works-24012019 Scientists link properties of individual brain cell size to intelligence - https://www.zmescience.com[..]cience/dendrite-size-intelligence-042394 A varied biome of gut bacteria is thought to have several benefits, even so far as improving our moods. New evidence suggests it could also have a physical effect – making you skinnier, or even heavier. - http://www.bbc.com[..]could-gut-bacteria-microbes-make-you-fat 疼痛難以形容？科學家開發出一種血液檢測原型，能客觀測量疼痛嚴重程度 - https://dq.yam.com/post.php?id=10770 前皮克斯總裁其實無法在腦中想像任何畫面 因為他有「心盲症」 - https://dq.yam.com/post.php?id=10958 http://www.bbc.com[..]y-cant-some-people-remember-their-dreams Cell phones might cause skull ‘horns’ - https://www.zmescience.com[..]ence/cell-phones-might-cause-skull-horns What is RNA? https://www.zmescience.com/science/what-is-rna 酒醉不是藉口！研究顯示道德判斷不因喝醉失準 - https://www.inside.com.tw[..]hol-really-is-no-excuse-for-bad-behavior Researchers finally figure out the protein that senses cold temperatures - https://www.zmescience.com/science/cold-neurons-sensation-243242/ 【Healthy點】飲食失調不止是精神障礙 研究：厭食症實為「代謝及精神失調」 - https://hk.news.appledaily.com[..]ional/realtime/article/20190916/59843333 “In simple terms, we argue that when people cannot see from birth, they rely more heavily on the context they extract from the other senses,” the researchers write. They also add that this can also explain the - https://www.zmescience.com[..]blind-schizophrenia-connection-14102019/ https://www.zmescience.com[..]e/four-categories-human-goals-913513634/ Soup is good for malaria? - https://www.zmescience.com[..]ion-medicine/soup-malaria-good-19112019/ https://www.zmescience.com[..]medicine/white-noise-enhance-sound-0423/ https://www.bbc.com[..]-might-be-counting-in-the-wrong-language https://www.zmescience.com[..]carbon-dioxide-mental-capacity-13542134/ https://www.newyorker.com[..]man-lungs-the-evolution-of-a-coronavirus magic-mushroom maybe good? https://www.zmescience.com[..]n/magic-mushroom-effects-one-month-0423/ https://www.zmescience.com[..]c-exercises-boost-brain-neuroplasticity/ https://elemental.medium.com[..]ystem-reacts-to-coronavirus-cbf5271e530e The pandemic has spawned a new way to study medical records - https://www.economist.com[..]awned-a-new-way-to-study-medical-records All About Your Lungs - https://www.webmd.com/lung/ss/slideshow-lung-facts-overview mess-up-your-biological-clock - time - http://list25.com[..]-mess-up-your-biological-clock/?view=all Best time to do everything - https://www.webmd.com/balance/ss/slideshow-best-time https://www.zmescience.com[..]science/what-happens-human-space-052523/ The Mandela effect: how groups of people can all remember the wrong thing - https://www.zmescience.com/science/mandela-effect-memory-groups/ History of heart surgery - https://www.bbc.com[..]ons-learned-to-operate-on-beating-hearts Neurogenesis: Are you the Master of your Mind? - https://medium.com[..]you-the-master-of-your-mind-8d66571f8e0d https://www.zmescience.com[..]ence/groupy-behavior-bias-people-179803/ https://www.zmescience.com[..]humans-arent-inherintly-selfish-0423432/ Immune system - https://www.webmd.com/cold-and-flu/ss/slideshow-immune-system What is hemoglobin, and should you worry that it’s in your blood? - https://www.zmescience.com/science/what-is-hemoglobin-feature/ How Colors Can Affect You - https://www.webmd.com/balance/ss/slideshow-colors-affect-you An Essay on the Mental Causation of Human Behavior: Does the Mind Matter? - https://www.zmescience.com[..]pieces/mental-causation-essays-05042021/ Why is humanity here? The stoned ape theory says: ‘drugs’ - https://www.zmescience.com/science/stoned-ape-theory-feature/ Muscles are important, but stiff tendons are the secret ingredient for high-speed performance - https://www.zmescience.com[..]t-ingredient-for-high-speed-performance/ The Olympian period — the effect of menstruation on female athletes performance - https://www.zmescience.com[..]truation-on-female-athletes-performance/ Why do beans make us gassy? - https://www.zmescience.com[..]ence/why-do-beans-make-us-gassy-feature/ An AI Finds Superbug-Killing Potential in Human Proteins - https://www.wired.com[..]bug-killing-potential-in-human-proteins/
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Thu Dec 02 12:03:52 AEDT 2021
From /weblog/java/performance
java -XX:+PrintFlagsFinal -version | findstr HeapSize , find out actual Xmx default in bytes - https://www.edureka.co[..]default-parameters-of-xms-and-xmx-in-jvm -XX:+PerfDisableSharedMem , prevent locking by sharedmem in linux - http://www.evanjones.ca/jvm-mmap-pause.html How linkedin turn the GC - http://engineering.linkedin.com[..]ughput-and-low-latency-java-applications Using generational & concurrent GC collector - http://www.javacodegeeks.com[..]/04/ibm-jvm-tuning-gencon-gc-policy.html Full VM option list : http://blogs.sun.com/roller/resources/watt/jvm-options-list.html, update for Java7 - http://nerds-central.blogspot.com[..]ot.com/2011/07/all-jvm-7-xx-options.html http://stas-blogspot.blogspot.com[..]ost-complete-list-of-xx-options-for.html A simplified list for some frequency use options - http://rdafbn.blogspot.com.au[..]rbage-collector-guidelines-and-tips.html HotSpot JVM garbage collection options cheat sheet - http://aragozin.blogspot.com[..]spot-jvm-garbage-collection-options.html http://www.oracle.com[..]va/javase/tech/vmoptions-jsp-140102.html An example and story about effect of difference VM parameter affecting the performance - http://www.javaspecialists.eu/archive/Issue191.html Clear the code cache automatically with -XX:+UseCodeCacheFlushing - http://blogs.amd.com[..]time-for-long-running-java-applications/ Discussion about -XX:MinHeapFreeRatio parameter - http://www.gossamer-threads.com[..]s.com/lists/lucene/java-user/44286#44286 The other detailed guide for VM parameters tuning - http://java.sun.com/j2se/1.5/pdf/jdk50_ts_guide.pdf Here is a more simple cookbook - http://java.sun.com/performance/reference/whitepapers/tuning.html A outdated (1.4) , compehensive but still not really too detailed, overview of various GC tuning - http://www.petefreitag.com/articles/gctuning/ Some say following VM parameter is good enough -server -Xmx -XX:+UseParallelGC http://blogs.sun.com[..]/page/binublog?entry=java_tuning_for_xml Some say is useful if you have huge memory -XX:+UseLargePages http://blogs.sun.com[..]dagastine?entry=java_se_tuning_tip_large Some say below parameter keep GC in low pause -XX:MaxGCPauseMillis=5000 Some say below parameter are very optimal -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:NewSize=1200m -XX:SurvivorRatio=16 http://www.theserverside.com[..]d.tss?thread_id=41258&ASRC=EM_NNL_347804 Some say those parameter is good -XX:+UseConcMarkSweepGC -XX:ParallelCMSThreads=1 -XX:+CMSIncrementalMode -XX:+CMSIncrementalPacing -XX:CMSIncrementalDutyCycleMin=0 -XX:CMSIncrementalDutyCycle=10 http://blog.mikiobraun.de/2010/08/cassandra-gc-tuning.html Just in case anyone is curious, the flags enabled by -XX:+AggressiveOpts in JDK 1.6.0_25 are: -XX:+EliminateAutoBox -XX:AutoBoxCacheMax=20000 -XX:BiasedLockingStartupDelay=500 -XX:+DoEscapeAnalysis -XX:+OptimizeStringConcat -XX:+OptimizeFill Generate dump with OOME - -XX:+HeapDumpOnOutOfMemoryError GC log sample of -XX:+UseConcMarkSweepGC -XX:PrintFLSStatistics=1 -XX:+PrintGCDetails - https://gist.github.com/1329783 A case study of tuning VM GC parameters - http://plumbr.eu[..]ld-you-trust-the-default-settings-in-jvm Explanation for few performance related VM parameters - http://www.techpaste.com[..]ine-options-jvm-performance-improvement/ Show the exact vm flag that java using - http://matthewkwilliams.com[..]/looking-inside-a-jvm-xxprintflagsfinal/ For G1GC - https://dzone.com[..]e-first-garbage-collector-tuning-flags-1 https://ionutbalosin.com[..]otspot-jvm-performance-tuning-guidelines
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Mon Nov 29 00:29:43 AEDT 2021
From /weblog/business
P2P filesharing can actually helping music sell, according to this article, if there is large amount of people download, this is a very good marketing tools - https://theecommmanager.com/what-happened-long-tail/ After you spend so much effort of promoting your product, may be you miss promoting your product to YOU?? And there are millions of YOU all over the earth? http://software.ericsink.com/entries/Note_to_self.html promotion, mix with free service and love - http://blogs.zdnet.com/ip-telephony/?p=1588 Name is important - http://www.goodproductmanager.com[..]4/pick-the-right-name-for-your-projects/ Sometime, it would be a nice promotion of comment your product in negative way, some how - http://www.codinghorror.com/blog/archives/000971.html?r=11182 The official definition is that marketing creates demand, while sales fulfils demand, how Joel demo software - http://www.joelonsoftware.com/items/2007/11/16.html First to release may be worst than the 2nd one - http://www.goodproductmanager.com[..]window-as-part-of-your-product-strategy/ Timing is VERY important Guessing if we have short and frequency release, we don't need to save any features. However, in case if our release cycle still long and big, this may be a good idea. - http://www.goodproductmanager.com[..]2009/11/10/save-some-features-for-later/ Learning US. style of marketing - http://cn.wsj.com/big5/20131204/eoe072653.asp?source=rss Analysis why ice-bucket-challenge can be so popular - http://www.inside.com.tw[..]/26/ice-bucket-challenge-viral-marketing 【台積電成功之道】B2B 的公司，都應像孵化器一樣，賦能自己的客戶！- https://www.inside.com.tw/article/25731-learn-from-tsm
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