1. Bertina RM, Koeleman BP, Koster T, Rosendaal FR, Dirven RJ, De Ronde H, Van der Velden PA, Reitsma PH: Mutation in blood coagulation factor V associated with resistance to activated protein C. Nature 369:64, 1994 2. Poort SR, Rosendaal FR, Reitsma PH, Bertina RM: A common genetic variation in the 38-untranslated region of the prothrombin gene is associated with elevated plasma prothrombin le...

The relation between facets of Rees cones of clutters and irreducible b-vertex covers is examined. Let G be a simple graph and let Ic(G) be its ideal of vertex covers. We give a graph theoretical description of the irreducible bvertex covers of G, i.e., we describe the minimal generators of the symbolic Rees algebra of Ic(G). As an application we recover an explicit description of the edge cone...

Under the context of reserve depletion, recovering rare earth elements (REEs) from secondary resources is essential which assists to strengthen circular economy. Contaminated biomass growing brownfield lands a potential material for REE recovery. However, prior extraction stage, polluted plants need be lessened manageable volume. In this study, contaminated gathered an abandoned mining area was...

This study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (REE) recoveries from iron mine waste. The electron microprobe showed that high amoun...

Access to critical metals required for high-performance technologies, particularly, the light rare earth elements (REEs = La, Ce, Nd, Pr), has become a major challenge import-dependent economies such as European Union. In this regard, recycling of spent nickel metal hydride (Ni-MH) batteries by hydrometallurgical processes can serve an attractive secondary source REEs. processes, precipitation ...

A flowsheet was developed to extract mixed Rare Earth Elements (REEs) from an aqueous solution generated by nitric acid leaching of apatite concentrate. In this study, Platanus orientalis (P. orientalis) leaf powder employed in the biosorption process purify pregnant leach solution. The sorption and desorption processes were investigated optimized. results demonstrated successful extraction REE...

Changes in respiration in aging carrot slices are correlated with a characteristic sequence of activation of the irreversible reactions of the glycolytic pathway. The induced "wound" respiration increases in two stages; these appear to correspond to a period of active synthesis, when ADP, produced in the cytoplasm from synthetic reactions, activates pyruvate kinase, and a period of readjustment...

Extensive red/brown precipitates of unknown origin and composition have caused ecological degradation a wetland nature reserve (the Water Kingdom Biosphere Reserve) in the hemiboreal zone south Sweden. Chemical analyses samples containing showed strong dominates Fe elevated levels rare earth elements (REEs), Be, U. In addition, synchrotron-based indicated that these was bound largely akageneite...

Clay mineral authigenesis at continental margins plays an important role in global marine element cycles. However, despite being increasingly used as tracers for both modern and past oceanographic conditions, the behavior of rare earth elements (REEs) their isotopes during clay still remains poorly known. In this study, we report on a detailed geochemical investigation glauconite from West Afri...