The improvement in current processes and in new processes triggers the search for materials and practices that can enable such advancement. However, in order to suit these improvements, it is relevant to consider sustainable issues. This paper presents sustainable approaches for processes and product development. From these approaches it was possible to derive guidelines that may be used as cri...

the author conducted 1-year study investigating the causation and management of eye trauma at farabi eye' center. all patients sustaining eye injuries who were evaluated by ophthalmology service over one year interval were included.. a formal questionnaire was completed with details of the injuiy being obtained. an ophthalmologic examination was performed on each patient, and examination f...

Geothermal energy can be useful after extraction from geothermal wells, borehole heat exchangers and/or natural sources. Types of boreholes are wells (for water production and injection) exchange with the ground without mass transfer). The purpose is to harvest present in aquifer. They often involve a pumping chamber. injection used for injecting back produced into aquifer, having harvested con...

One brand-new colloidal ensemble of single-sized CdTe nanocrystals, exhibiting a sharp first excitonic absorption peak at 427 nm and bright bandgap photoluminescence at 427 nm with narrow full width at half maximum (FWHM) of only ca. 10 nm, was synthesized in 1-octadecene (ODE) via a non-injection one-pot approach which features high synthetic reproducibility with potential for industrial scale...

WHIGHAII, D., and R. SIIIPSON. (Biol. Dept., Rider Coll., Lawrenceville, Ne:v Jersey 08648). Growth, mortality, and biomass partitioning in freshwater t idal wetlmd populations of wild rice (Zizania aquatica Tar. aquatica). Bull. Torrey Bot. Club 104: 347-351. 1977.-Wild rice is a common annual in Delaware River tidal ~retlands. Net production was as high as 20.9 g m" day-I and varied seasonall...

Using correlated photons from spontaneous parametric downconversion, we have measured both the absolute quantum efficiencies and the time responses of four single-photon detectors. Efficiencies as high as (76.4 ± 2.3)% (at 702 nm) were seen, which to our knowledge are the highest reported single-photon detection efficiencies. An auxiliary retroreflection mirror was found to increase the net det...

Considered as a social contract, a financial safety net imposes duties and confers rights on different sectors of the economy. Within a nation, elements of incompleteness inherent in this contract generate principal-agent conflicts that are mitigated by formal agreements, norms, laws, and the principle of democratic accountability. Across nations, additional gaps emerge that are hard to bridge....

Back ground: With a view to explore the possibilities of finding new molecules with proven therapeutic efficacy for human use with potent sperm attenuating activity and lower side effect profile than nonoxynol9 (N-9). the present study was designed to investigate spermicidal activity in Xestospongia officinalis. Material and Methods: The extract, fractions followed by isolation and characteriza...