Elements of Hebrew syntax by an inductive method /

Mode of access: Internet.

The elements of general method based on the principles of Herbart.

Mode of access: Internet.

Elements of logic : comprising the doctrine of the laws and products of thought, and the doctrine of method, together with a logical praxis /

Mode of access: Internet.

An introductory New Testament Greek method : together with a manual, containing text and vocabulary of Gospel of John and lists of words, and the elements of New Testament Greek grammar /

Mode of access: Internet.

The incomparable game of chess, developed after a new method of the greatest facility, from the first elements to the most scientific artifices of the game.

Ponziani's work is here erroneously attributed to E. del Rio. cf. Antonius v.d. Linde, Quellenstudien zur geschichte des schachspiels; und Anton Schmid, Literatur des schachspiels.

The child's arithmetick; or, The elements of calculation, in the spirit of Pestalozzi's method ...

Mode of access: Internet.

An Easy method of learning the elements of the French pronunciation : in a few lessons.

Not in Shaw & Shoemaker.

Elements of Hebrew syntax by an inductive method.

Mode of access: Internet.

The philosophy of mathematics, with special reference to the elements of geometry and the infinitesimal method,

Mode of access: Internet.

Elements of algebra : being an abridgement of Day's Algebra, adapted to the capacities of the young, and the method of instruction, in schools and academies /

Mode of access: Internet.

Elements of algebra, being an abridgment of Day's Algebra, adapted to the capacities of the young, and the method of instruction, in schools and academies.

Mode of access: Internet.

The Ciceronian; or, The Prussian method of teaching the elements of the Latin language. Adapted to the use of American schools.

Mode of access: Internet.

Elements of the differential and integral calculus, by a new method, founded on the true system of Sir Isaac Newton, without the use of infinitesimals or limits.

Mode of access: Internet.

Method for cadmium and lead longitudinal profiles determination in hair by solid sampling graphite furnace atomic absorption spectrometry

This paper describes methods for the direct determination of Cd and Pb in hair segments (c.a. 5 mm similar to 80 mu g) by solid sampling graphite furnace atomic absorption spectrometry, becoming possible longitudinal profiles in a single strand of hair. To distinguish endogenous and exogenous content. strands of hair were washed by using two different procedures: IAEA protocol (acetone + water + acetone) and the combination of IAEA protocol with HCl washing (acetone + water + acetone + 0.1 mol l(-1) HCl). The concentration of Cd and Pb increased from the root Until the tip of hair washed according to IAEA protocol. However, when the strand of hair was washed using the combination of IAEA protocol and 0.1 mol l(-1) HCl, Cd concentrations decreased in all segments, and Pb concentrations decreased drastically near to the root (5 to 12 mm) and was systematically higher ill the end. The proposed method showed to be useful to assess the temporal variation to Cd and Pb exposure and call be Used for toxicological and environmental investigations. The limits of detection were 2.8 ng g(-1) for Cd and 40 ng g(-1) for Pb. The characteristic masses based oil integrated absorbance were 2.4 pg for Cd and 22 pg for Pb.

k(0)-INAA for determining chemical elements in bird feathers

The k(0)-method instrumental neutron activation analysis (k(0)-INAA) was employed for determining chemical elements in bird feathers. A collection was obtained taking into account several bird species from wet ecosystems in diverse regions of Brazil. For comparison reason, feathers were actively sampled in a riparian forest from the Marins Stream, Piracicaba, Sao Paulo State, using mist nets specific for capturing birds. Biological certified reference materials were used for assessing the quality of analytical procedure. Quantification of chemical elements was performed using the k(0)-INAA Quantu Software. Sixteen chemical elements, including macro and micronutrients, and trace elements, have been quantified in feathers, in which analytical uncertainties varied from 2% to 40% depending on the chemical element mass fraction. Results indicated high mass fractions of Br (max=7.9 mgkg(-1)), Co (max= 0.47 mg kg(-1)), Cr (max =68 mg kg(-1)), Hg (max =2.79 mg kg(-1)), Sb (max= 0.20 mg kg(-1)), Se (max=1.3 mg kg(-1)) and Zn (max =192 mg kg(-1)) in bird feathers, probably associated with the degree of pollution of the areas evaluated. In order to corroborate the use of k(0)-INAA results in biomonitoring studies using avian community, different factor analysis methods were used to check chemical element source apportionment and locality clustering based on feather chemical composition. (C) 2010 Elsevier B.V. All rights reserved.