منابع مشابه
Whitehead Doubling Persists
Even though the (untwisted) Whitehead doubling operation kills all known abelian invariants of knots (and makes them topologically slice), we show that it does not kill the rational function that equals to the 2-loop part of the Kontsevich integral.
متن کاملMicrochimerism and Renal Transplantation: Doubt Still Persists
Background: The Presence of donor leukocytes in recipients of organ allograft has been shown even several years after transplantation. However, it remains unclear whether this donor cell microchimerism plays an effective role in allograft acceptance or is simply a consequence of immunosuppressive conditions in recipients. Objective: To study microchimerism in a group of kidney transplant recipi...
متن کاملMicrochimerism and renal transplantation: doubt still persists.
OBJECTIVE We sought to study microchimerism in a group of kidney transplant recipients. MATERIALS AND METHODS In this study, the peripheral blood microchimerism (PBM) after renal transplantation was retrospectively evaluated in 32 male-to-female recipients of living unrelated or cadaveric donor renal transplants. Using a nested polymerase chain reaction (PCR) amplification specific for SRY re...
متن کاملProtein synthesis persists during necrotic cell death
Cell death is an intrinsic part of metazoan development and mammalian immune regulation. Whereas the molecular events orchestrating apoptosis have been characterized extensively, little is known about the biochemistry of necrotic cell death. Here, we show that, in contrast to apoptosis, the induction of necrosis does not lead to the shut down of protein synthesis. The rapid drop in protein synt...
متن کاملSeparate and Unequal: Hukou, School Segregation, and Migrant Children’s Education in Urban China
This paper examines hukou-based school segregation (measured by both unevenness and exposure) and its impact on the gap in academic achievement between migrant and local students in urban China. Based on the analysis of data from a nationally representative school-based survey (the Chinese Educational Panel Survey), we show that, while migrant children perform significantly worse than urban loc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/343585a0