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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A Grammar of Faifi

Alfaife, Saleem Mohammed 20 June 2018 (has links)
<p> Faifi is an endangered Afroasiatic-Semitic speech form of southwestern Saudi Arabia along the border with Yemen, with roughly 50,000 speakers. This study is partially a comprehensive grammar of this speech form, written from a functional/ typological perspective that emphasizes that the key to comprehending linguistic processes comes from studying the functionality of language and its elements. </p><p> This thesis introduces the Faifi people, aspects of their culture, and history, and includes a comparative study between Faifi and Arabic, which consists of nineteen linguistic aspects. The thesis introduces the major aspects of Faifi, including: contrastive phonology, syllable structure, pronouns, demonstratives, clitics, nouns, verbs, adjectives, future stems, adverbs, NP and NP related operations, word order, alignments, tense and aspect, relative clause, complement clause and adverbial clause.</p><p>
2

Functional Morphology of the Mouth Parts of Pagurus longicarpus Say

Roberts, Morris H. 01 January 1965 (has links)
No description available.
3

Annulus formation and microstructure of hard clam (Mercenaria mercenaria) shells

Fritz, Lowell W. 01 January 1982 (has links)
No description available.
4

Sex-Related Morphological Differences in the Dentition of Anolis oculatus

Grierson, Kevin William 01 January 1989 (has links)
No description available.
5

Seasonal phenotypic change and its effect on some life-history characteristics in Daphnia retrocurva (Cladocera)

Bebak, Julie Anne 01 January 1983 (has links)
No description available.
6

The Ultrastructure of Chrysaora quinquecirrha Strobilae

Bynum, Mary Ann Ott 01 January 1972 (has links)
No description available.
7

Quantitative Analysis of Oral Movements in a Mouthbrooding Chichlid, Orcochromis esculentus

Van Lieu, Erin 01 January 2000 (has links)
No description available.
8

Ultrastructure of the Seminiferous Epithelium of Prairie Deer Mice (Peromyscus maniculatus Bairdii) from a Freely-Growing, Confined Population

Keller, Stephen Richard 01 January 1974 (has links)
No description available.
9

Respiratory structure anatomy of two marine annelids: Evidence for the respiratory role of the superior ligule in Nereis succinea and the gill of Arenicola cristata

Johnson, Jerome M. 01 January 1981 (has links)
No description available.
10

Studies On The Anatomy Of Teleosts

Bemis, Katherine Elliott 01 January 2020 (has links)
The Longnose Lancetfish, Alepisaurus ferox, is a pelagic marine fish that has a heterodont dentition, including large fangs on both the upper and lower jaws. Their diet is well documented and includes salps, hyperiid amphipods, pelagic polychaete worms, mesopelagic fishes, and cephalopods. However, the function of the heterodont dentition, the structure of the teeth, and replacement mode is largely unknown. We studied a series of A. ferox to describe their dentition and tooth replacement. All teeth are replaced extraosseously. Palatine and dentary fangs develop horizontally in the oral epithelium on the lingual surface of dentigerous bones. Developing fangs rotate into place and attach to the bone through a pedicel that forms at the base of each tooth on the lingual side of the dentigerous bone. We compare extraosseous horizontal tooth replacement and rotation of large fangs in A. ferox to examples of other teleosts rotation of fangs. Atlantic Cutlassfish, Trichiurus lepturus, have large, barbed premaxillary and dentary fangs and sharp, dagger-shaped teeth in their oral jaws. We used dry skeletons, histology, SEM, and micro-CT scanning to study T. lepturus to describe its dentition and tooth replacement. We identified and described three modes of intraosseous tooth replacement in T. lepturus depending on the location of the tooth in the jaw. Such distinct modes of tooth replacement in a teleostean species are unknown. We compared modes of replacement in T. lepturus to 20 species of scombroids to explore the phylogenetic distribution of these three replacement modes. Our study highlights the complexity and variability of intraosseous tooth replacement and that developmentally different tooth replacement processes can yield remarkably similar dentitions. We review literature on the comparative anatomy of Ocean Sunfishes (Molidae) and presents new findings based on our studies. We document similarities and differences among the three living genera, Ranzania, Masturus, and Mola using an organ system approach to examine: general body form and external anatomy; skeleton; integument; brain and sense organs; digestive organs; heart and circulation; respiratory system; excretory system; and endocrine organs. Molids have many anatomical specializations such as the formation of the clavus from dorsal- and anal-fin elements, enlarged gills with unusual skeletal supports, a heart with thick walls and more valves than other teleosts, ontogenetic loss of the swimbladder, enlarged kidneys and a well-developed urinary bladder, reduced otoliths, and a spinal cord contained completely within the braincase. Tagging studies on locomotion and diving behavior demonstrate that molids move efficiently over horizontal and vertical distances in the water column, and this new information helps to interpret the many unusual features of molid anatomy.

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