Signals and signs in the nervous system: The dynamic anatomy of electrical activity is probably information-rich

The dichotomy between two groups of workers on neuroelectrical activity is retarding progress. To study the interrelations between neuronal unit spike activity and compound field potentials of cell populations is both unfashionable and technically challenging. Neither of the mutual disparagements is justified: that spikes are to higher functions as the alphabet is to Shakespeare and that slow field potentials are irrelevant epiphenomena. Spikes are not the basis of the neural code but of multiple codes that coexist with nonspike codes. Field potentials are mainly information-rich signs of underlying processes, but sometimes they are also signals for neighboring cells, that is, they exert influence. This paper concerns opportunities for new research with many channels of wide-band (spike and slow wave) recording. A wealth of structure in time and three-dimensional space is different at each scale—micro-, meso-, and macroactivity. The depth of our ignorance is emphasized to underline the opportunities for uncovering new principles. We cannot currently estimate the relative importance of spikes and synaptic communication vs. extrasynaptic graded signals. In spite of a preponderance of literature on the former, we must consider the latter as probably important. We are in a primitive stage of looking at the time series of wide-band voltages in the compound, local field, potentials and of choosing descriptors that discriminate appropriately among brain loci, states (functions), stages (ontogeny, senescence), and taxa (evolution). This is not surprising, since the brains in higher species are surely the most complex systems known. They must be the greatest reservoir of new discoveries in nature. The complexity should not deter us, but a dose of humility can stimulate the flow of imaginative juices.

Introduction to Coding Theory for Flow Equations of Complex Systems Models

The modeling of complex dynamic systems depends on the solution of a differential equations system. Some problems appear because we do not know the mathematical expressions of the said equations. Enough numerical data of the system variables are known. The authors, think that it is very important to establish a code between the different languages to let them codify and decodify information. Coding permits us to reduce the study of some objects to others. Mathematical expressions are used to model certain variables of the system are complex, so it is convenient to define an alphabet code determining the correspondence between these equations and words in the alphabet. In this paper the authors begin with the introduction to the coding and decoding of complex structural systems modeling.

A catalogue of books [donated by Jasper Mauduit] in the library of Harvard College [at]: Cambridge in New England, 1765

This leatherbound volume lists books donated to the Harvard College Library by Jasper Mauduit, who served as an agent in London on behalf of the Province of the Massachusetts Bay. Entries are arranged alphabetically and by format; i.e. the first page lists all folios whose author, title, or keyword begin with "A," the next page lists all quartos beginning with "A," and the following page lists all "octavo &ca" volumes beginning with "A." The volume continues in a similar manner for each letter of the alphabet. Following a devastating fire in 1764 which destroyed most of the books in the Harvard College Library, Mauduit donated books, as well as money for the purchase of books, to the College. He also acted as an agent of the Society for Propagating the Gospel in New England and Parts Adjacent, using the £300 they donated for the rebuilding of the College library to select and purchase a large number of books. It is not known if the books listed in this catalog are those donated by Mauduit himself, or if they are the donations he purchased on behalf of the Society. The creator of this volume is unknown; although all entries are made in the same hand, the identity of the writer has not been determined. The label attached to the front cover, which refers to the Lime Street address of Mauduit's business in London, suggests that the list might have been prepared by Mauduit himself.

Writings on Islamic divination : manuscript, [ca. 1592]

Title supplied by cataloger.

Ancient writing and its influence,

Bibliography: p. 231-234.

Elementary Chinese for American librarians: a simple manual,

Lesson 1, Where to find essential bibliographical data in a Chinese publication.--Lesson 2, A basic vocabulary for identifying or translating Chinese bibliographical data.--Lesson 3, How to use a Chinese dictionary.--Lesson 4, How to convert the new Chinese alphabet into the Wade-Giles romanization.

Zwei sprachvergleichende Abhandlungen.

l. Über die Anordnung und Verwandtschaft des Semitischen, Indischen, Äthiopischen, Alt-Persischen und Alt-Ägyptischen Alphabets.--2. Über den Ursprung und die Verwandtschaft der Zahlwörter in der Indogermanischen, Semitischen und der Koptischen Sprache.

Der Traumschlüssel des Jagaddeva, ein Beitrag zur indischen Mantik,

Text in Sanskrit (transliterated into Roman alphabet) with German translation.

The Queens : being passages from the lives of Elizabeth, queen of England, and Mary, queen of Scotland /

At head of title: "The first proofs," with words in an unknown alphabet. "We claim that this literary work is of the same mind that formerly composed and wrote the immortal works now known as those of William Shakespeare. Our Brotherhood has collected the most remote history of the world in the highest spiritual study, to satisfy the truth of immortality."--Introduction (translated.).

Povorotnyĭ punkt v istorīi Evreĭskago rabochago dvizhenīi͡a.

At head of title: Rossīĭskai͡a sotsīalʹdemokraticheskai͡a rabochai͡a partīi͡a.

The writings of Thomas Wentworth Higginson.

At head of title: Large-paper edition.

L'alfabeto della morte di Hans Holbein : attorniato di fregii incisi in legno ed accompagnato di sentenze latine e di quartine del XVIo secolo /

"Prefazione" signed: Luigi Odorici.

M.IU. Lermontov v iubileinoi literaturie 1914 goda : bibliograficheskii obzor s ukazatelem /

Includes index.

Histoire de l'écriture dans l'antiquité.

At head of title: Ministère de l'instruction publique et des beaux-arts.

Otiot de-Rabbi akiba.

Mode of access: Internet.