Increase of productivity of process urgently requires application of more and technical advance. As is known for deriving of isobutylene, being raw material at development of polyisobutylene and butyl rubbers widely use process of dehydrogenation of isobutylene in pseudoliquid catalyst bed, circulating in reactor-regenerative system. Opportunities of this process in the production conditions co...

A cohort study was conducted in order to measure the effect of the chronic indurative lymphocytic mastitis caused by the South African strain of maedi visna virus (MVV) on the pre-weaning growth of lambs born either of naturally infected or uninfected ewes kept under similar conditions. Fifty naturally infected ewes as well as another 40 from a maedi-visna-free source to be used as control anim...

The total factor productivity (TFP) of a multiple-output multiple-input firm can be defined as the ratio of an aggregate output to an aggregate input. With this definition, index numbers that measure changes in TFP can be expressed as the ratio of an output quantity index to an input quantity index. This paper uses the term multiplicatively complete to describe TFP index numbers that are constr...

Recent studies have investigated the relationship between a country’s overall measure of economic freedom and its economic performance over time. On the one hand, institutions promoting economic freedoms are thought to increase productivity (Dawson 1998) and investment opportunities (Besley 1995). However, while economic freedom may be certainly desirable from a normative perspective, De Hann a...

Root-knot nematodes (Meloidogyne spp) are destructive agricultural pests that reduce the productivity of cultivated vegetables worldwide, especially when vegetables are cropped continuously in greenhouses. Cucumbers (Cucumis sativus L.), in particular, suffer extensive damage due to root-knot nematodes, and only a few wild species are known to be resistant. Grafting of cultivated plants to root...

OBJECTIVES The study updates Schloman's 1997 study, "Mapping the Literature of Health Education." The authors identify an updated list of core health education journals and determine the coverage of these journals by electronic indexes. METHODS Citations from four source journals for the years 2006 to 2008 were analyzed using the established methodology of the "Mapping the Literature of Allie...

The concept of Genealogical Sorting Indexes (GSIs) was first introduced by Cummings et al. [1]. Given a set of observations belonging to different groups (represented in the form of a hierarchial tree), the Genealogical Sorting Index (GSI) value obtained for a particular group provides a quantitative measure of how closely the observations belonging to this group have clustered in the given tre...

ABSTRACT The equilibrium and nutritional balance of plants are known to be utmost importance evaluate their yield potential comprehend the dynamics nutrients in soil-plant system. Hence, present study determined reference values for evaluating status ‘Gigante’ cactus pear cultivated with organic fertilization semiarid conditions by Diagnosis Recommendation Integrated System (DRIS) Balanced Inde...