简介：二部件的CamassaHolm和HunterSaxton系统是，这被显示出几何上integrable，也就是，他们描述伪spherical表面。作为后果，他们能量守恒定律的无限的数字直接被构造。另外，取决于伪潜力的非局部的对称的一个班被获得。

简介：10月25日,HartreeMaritimePartnersLLC表示,该公司与HunterGroupASA建立了一个新的已安装洗涤器的VLCC联营池。该联营池中的船队由11艘环保VLCC组成。其成立将有助于最大限度地降低运营成本,同时实现收益的最大化。

简介：Background:Investigationsofrunninggaitamongbarefootandpopulationshaverevealedadiversityoffootstrikebehaviors,withsomepreferentiallyemployingarearfootstrike(RFS)asthefoottouchesdownwhileothersemployamidfootstrike(MFS)orforefootstrike(FFS).Here,wereportfootstrikebehaviorandjointanglesamongtraditionalHadzahunter-gathererslivinginNorthernTanzania.Methods:Hadzaadults(n=26)andjuveniles(n=14)ranatarangeofspeeds(adults:mean3.4±0.7m/s,juveniles:mean3.2±0.5m/s)overanoutdoortrackwaywhilebeingrecordedviahigh-speeddigitalvideo.Footstriketype(RFS.MFS.orFFS)andhindlimbsegmentanglesatfootstrikewererecorded.Results:HadzamenpreferentiallyemployedMFS(86.7%ofmen),whileHadzawomenandjuvenilespreferentiallyemployedRFS(90.9%and85.7%ofwomenandjuveniles,respectively).NoFFSwasrecorded.Speed,thepresenceoffootwear(sandalsvs.barefoot),andtrialdurationhadnoeffectonfootstriketype.Conclusion:UnlikeotherhabituallybarefootpopulationswhichpreferFFSwhilerunning.HadzamenpreferredMFS.andHadzawomenandjuvenilespreferredRFS.SexandagedifferencesinfootstrikebehavioramongHadzaadultsmayreflectdifferencesinrunningexperience,withmenlearningtopreferMFSastheyaccumulatemorerunningexperience.