Creation pressure

نویسنده

  • Nigel Williams
چکیده

The move to repatriate certain materials held in UK collections follows several years of discussions which ended in legislative changes and the Department for Culture, Media and Sport issuing guidelines on how claims should be handled. At the Natural History Museum this has led to the creation of a special panel to assess the merits of each request. Georgina Mace, a member of the panel, said the decision to allow three months of scientific tests on the Tasmanian remains before their repatriation represented a fair compromise between the desire of the Tasmanians to regain the materials and the wish of scientists to retain them for investigation. " Part of the compromise is that we will try to gain as much knowledge as possible but we are very pleased to be able to return these items to the people who feel very strongly that they shouldn't be here ". The data collection process, beginning this month, will include imaging, measurements, and DNA and isotopic analysis. Researchers say that by applying such techniques, they can use old bones to discern patterns of migration in human communities — who lived, who mixed with whom and when — and even follow the spread of disease. The chemistry of bones will often record how an individual lived — and died. For example, different isotopes of carbon and nitrogen in teeth reveal the diet of a person, with vegetarians displaying a very different isotopic signature to an individual who eats meat or fish. The NHM holds the British national collection of human remains, comprising almost 20,000 specimens. They represent a worldwide distribution of the human population and a timescale of 500,000 years. The majority of the collection (54%) is material from individuals in the UK. But there are hundreds of items which could, and almost certainly will, be subject to further claims for repatriation by indigenous groups in Australia, New Zealand and North America. Several schools in Darwin's home country are using creationist teaching materials condemned by the UK government as " not appropriate to support the science curriculum " , according to recent press reports. The pack sent to schools promotes the creationist alternative to Darwinian evolution in the form of 'intelligent design' and the group behind them said 59 schools are using the information as a " useful classroom resource ". A teacher at one of the schools said it intended to use the …

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Association between non-matured arterio-venus fistula and blood pressure in hemodialysis patients

  Background : Chronic Kidney Disease (CKD) is a complicated kidney problem causing permanent renal failure in progressive stages. The final stage of CKD is called ESRD in which most accepted management is Hemodialysis (HD). Arterio-Venus Fistula (AVF) is the most practical way of making proper access to the blood circulatory system however, maturation of the AVF is a challenge, since there are...

متن کامل

Numerical investigation the effect of accumulator on reducing the ‎pressure waves in a common rail fuel injection system of diesel engine

Pressure fluctuations during fuel injection are one of the factors that negative effect on performance of diesel engine. These fluctuations are caused by the rapid opening and closing of the nozzles and the creation of pressure waves in the fuel rail. One way to control these pressure fluctuations is to change the injector design and use an accumulator in the injector. This study is performed t...

متن کامل

Analytical analysis of ultimate ground pressure on tunnel support system

The ground reaction curve (GRC) is a vital component of the convergence-confinement method, which possesses many applications in the underground space designs. It defines a relation between the tunnel wall deformations and the ground pressure acting on the tunnel walls. Generally, GRC includes descending and ascending branches. According to many researchers, the descending branch trend for the ...

متن کامل

Effect of Stress on Creation of Defects in Annealed Czochralski Grown Silicon

The effect of stress (exerted by hydrostatic pressure of argon ambient enhanced up to 1.2 GPa) on the creation of oxygen-related defects in annealed Czochralski grown silicon (Cz-Si) was investigated. Concentrations of oxygen interstitials and of dislocations in Cz-Si samples with before-created nucleation centres for oxygen precipitation were markedly lower after pressure treatment at 1120 to ...

متن کامل

AIR PRESSURE SIMULATION IN CASTING MOLDS

During mold filling, molten metal can only advance as quickly as the air inside thecavity is expelled. In this work an analytical model describing air flow is developed based on aincompressible flow theory. Air pressure has serious effects upon the filling behaviour such assurface profile and filling time. In this work a new mathematical model is proposed for calculationthe air pressure during ...

متن کامل

The effect of void creation prior to vertebroplasty on intravertebral pressure and cement distribution in cadaveric spines with simulated metastases

BACKGROUND For osteoporosis or spinal metastases, percutaneous vertebroplasty is effective in pain relief and improvement of mobility. However, the complication rate (cement extravasation and fat embolisms) is relatively higher in the treatment of spinal metastases. The presence of tumor tissue plays a significant role in intravertebral pressure and cement distribution and thereby affects the o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Current Biology

دوره 17  شماره 

صفحات  -

تاریخ انتشار 2007