SUMMARY IBM's Microkernel, named Workplace OS microkernel 18], was the core component of Workplace OS, a portable successor of OS/2. The basic premise of Workplace OS work was: 1) IBM would adopt and improve the CMU Mach 3.0 microkernel for use on PDAs, the desktop, workstations, and massively parallel machines, and 2) that several operating system personalities would execute on the microkernel...

There is a continuous demand for new scheduling policies to address specific requirements of modern OSes. However, the implementation of such policies within an existing OS kernel raises many problems, mainly because optimizations within schedulers hinder code maintenance and implementation of existing schedulers is spread over the kernel. In this paper we motivate that schedulers form an aspec...

Introduction: We have continued study of the chemical nature of late accreted materials to the Earth-Moon system by examining the highly sidero-phile elements (HSE: Ru, Pd, Re, Os, Ir, Pt) contained in lunar impact-melt rocks. The HSE contained in melt rocks were largely added to the Moon during the period of time from the origin of the lunar highlands crust (4.4-4.5 Ga) to the end of the late ...

Re-Os isotopic analyses of a single organic-rich sedimentary rock unit (ORS) of known depositional age, and at three levels of regional hydrocarbon maturity, show that hydrocarbon maturation does not affect the ability the Re-Os chronometer to yield a depositional age for such rocks. We present Re-Os isotope analyses from the Late Devonian Exshaw Formation in the subsurface of the Western Canad...

Osteosarcoma (OS) is the most common primary malignant bone tumor in childhood and adolescence with poor prognosis. The mechanism underlying tumorigenesis and development of OS is largely unknown. ALDH1B1 has been reported to involve in many kinds of human cancers and functions as an oncogene, but the role of ALDH1B1 in OS has not been investigated comprehensively. In the present study, we aime...

Os and Os-C are two novel antimicrobial peptides, derived from a tick defensin, which have been shown to have a larger range of antimicrobial activity than the parent peptide, OsDef2. The aim of this study was to determine whether the peptides Os and Os-C are mainly membrane acting, or if these peptides have possible additional intracellular targets in Escherichia coli and Bacillus subtilis. Tr...

Os-, Nd-, and Pb-isotope measurements were performed on a suite of eleven Kamchatka peridotite mantle xenoliths in volcanics from the southern (Avachinsky) and central (Sheveluch and Kharchinsky) segments of the Kamchatka peninsula. Peridotites with higher Os content (1.3–5.2 ppb) show a narrow Os / Os range between 0.1182 and 0.1272 while the xenoliths with lower Os content (b1 ppb) show a wid...

Progression-free survival (PFS) and overall survival (OS) are two common endpoints in cancer trials. OS is usually preferred, because it is reliable, precise, meaningful, and can easily be documented. However, subsequent lines of therapy might confound the effects of first-line treatment on OS. Whether PFS or OS is the more appropriate endpoint in clinical trials of metastatic cancer remains co...