Could it be possible to replace DERIVE with MAXIMA?

In recent years, a considerable number of teachers in Spain have been using DERIVE to teach math subjects in High Schools and Universities. This software has been used by the authors of this work as a support tool in Mathematics courses for Engineering. Since Texas Instruments does not support DERIVE, we were faced with finding an alternative software product, and considering the possibility of using a public-domain software such as MAXIMA. Here we make a comparative study of DERIVE and MAXIMA as support tools for a Calculus course for first year Engineering students.

An example of Learning based on competences: Use of Maxima in Linear Algebra for Engineers

This paper analyzes the role of Computer Algebra Systems (CAS) in a model of learning based on competences. The proposal is an e-learning model Linear Algebra course for Engineering, which includes the use of a CAS (Maxima) and focuses on problem solving. A reference model has been taken from the Spanish Open University. The proper use of CAS is defined as an indicator of the generic ompetence: Use of Technology. Additionally, we show that using CAS could help to enhance the following generic competences: Self Learning, Planning and Organization, Communication and Writing, Mathematical and Technical Writing, Information Management and Critical Thinking.

Quartus scripti Oxoniensis super sententias / [editum a fratre Joa[n]ne Duns ordinis fratrum minorum ... per ... Mauritium de Portu hiberni cum eiusdem ordinis fratrum minorum ... maxima xum diligentia emendatum].

Marca tip. xil. en colofón en 4E6r

Quartus scripti Oxoniensis super sententias / [editum a fratre Joa[n]ne Duns ordinis fratrum minorum ... per ... Mauritium de Portu hiberni cum eiusdem ordinis fratrum minorum ... maxima xum diligentia emendatum].

Marca tip. xil. en colofón en 4E6r

Explicit summa Angelica de casib[us] [con]sci[enti]e / p[er] fratre[m] Angelu[m] d[e] clauasio co[m]pilata ; maxima cu[m] dilige[n]tia reuisa, [et] fideli studio emendata ; sicut ip[sum] op[us] p[er] se sat[is] attestabit[ur].

Huecos para iniciales

Polydori Vergilii vrbinatis adagiorum liber ; eiusdem de inuentoribus rerum libri octo / ex accurata autoris castigatione, locupletationeq[ue] non vulgari, adeo vt maxima ferè pars primae ante hac vtriusq[ue] voluminis aeditioni accesserit.

Pie de imp. tomado del colofón

Characterization of an allotriploid strawberry Fragaria × bifera Duchesne (Rosaceae) from Europe

Peer reviewed

Do principio da probidade administrativa e de sua maxima efetivação

Inclui notas explicativas e bibliograficas

Phloem sap proteins from Cucurbita maxima and Ricinus communis have the capacity to traffic cell to cell through plasmodesmata

In angiosperms, the functional enucleate sieve tube system of the phloem appears to be maintained by the surrounding companion cells. In this study, we tested the hypothesis that polypeptides present within the phloem sap traffic cell to cell from the companion cells, where they are synthesized, into the sieve tube via plasmodesmata. Coinjection of fluorescently labeled dextrans along with size-fractionated Cucurbita maxima phloem proteins, ranging in size from 10 to 200 kDa, as well as injection of individual fluorescently labeled phloem proteins, provided unambiguous evidence that these proteins have the capacity to interact with mesophyll plasmodesmata in cucurbit cotyledons to induce an increase in size exclusion limit and traffic cell to cell. Plasmodesmal size exclusion limit increased to greater than 20 kDa, but less than 40 kDa, irrespective of the size of the injected protein, indicating that partial protein unfolding may be a requirement for transport. A threshold concentration in the 20–100 nM range was required for cell-to-cell transport indicating that phloem proteins have a high affinity for the mesophyll plasmodesmal binding site(s). Parallel experiments with glutaredoxin and cystatin, phloem sap proteins from Ricinus communis, established that these proteins can also traffic through cucurbit mesophyll plasmodesmata. These results are discussed in terms of the requirements for regulated protein trafficking between companion cells and the sieve tube system. As the threshold value for plasmodesmal transport of phloem sap proteins falls within the same range as many plant hormones, the possibility is discussed that some of these proteins may act as long-distance signaling molecules.

A new Pareumys (Rodentia: cylindrodontidae) from the Duchesne River Formation, Utah / [by] Craig C. Black --

v.16:no.17(1970)

Terrae Yemen maxima Pars. seu Imperii Imami, Principatus Kaukebân, nec non ditionum Haschid U Bekîl, Nehhm, Chaulân, Abu Arîsch Et Aden Tabula: ex observationibus astronomicis et hodometricis jussu et suntibus Potentissimor: Daniae Regnum Friderici V et Christiani VII institutis

delineata Auctore C. Niebuhr ; Gustav Conrad Lotter Sculps.

Description des objects d'arts qui composent le cabinet de le Baron V. Denon. Estampes et ouvrages a figures par Duchesne Ainé.

Mode of access: Internet.

Q. Asco. Pediani In Ciceronis orationes commentarii atq[ue] Georgius Trapezuntius, De artificio Ciceroniae orationis Pro. Q. Ligario : nuper maxima diligentia excuti.

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