2,487 research outputs found
Coorong Dynamics Model ( C D M ) : Model description and performance assessment
No full textDescription of the Coorong Dynamics Model at v2.0 (June 2020)
Cite as:
Hipsey, M.R., Huang, P., Zhai, S., Busch, B.. Paraska, D., Sims, C., 2022. The Coorong Dynamics Model (CDM) : Model description and performance assessment. Zenodo: DOI: 10.5281/zenodo.777877
Esperienza ed evento della verità. Pratica filosofica e astrazione scientifica nel pensiero di A.N. Whitehead
No full textThis article analyzes the relationship between philosophy, experience and event in A.N. Whitehead’s thought. From the critics of the concept of object, the author retraces and describes the peculiar “abstract-concrete dialectic”, at the center of the researches concerning the perceptual experience.
Furthermore, according to Whitehead’s later works, she demonstrates how the philosophical practice is different from all other kinds of science, although it requires science itself because of the co-implication of object and event, abstraction and recognition
Il "Guerrin Meschino" di Gesualdo Bufalino : un'"opra" in versi
No full textGesualdo Bufalino first published Il Guerrin Meschino in 1991 in a non-commercial edition. In 1993, after a deep revision, he re-published his work with publisher Bompiani: the novel has a modified plot, and the author decided to insert three new poems in addition to the opening and closing poems, formerly present in 1991’s edition. This paper, in its entirety supported by handwritten material preserved at Fondazione Gesualdo Bufalino (Comiso), is divided in two parts: the first part illustrates the differences between the first and the second edition, the second part provides a critical edition of the five poems
A FEW WORDS ABOUT THE TEACHER. IN MEMORY OF THE EXCELLENT TEACHER AND SCIENTIST M.R. SAPIN
No full textM.R. Sapin (1925–2015) was a professor at I.M. Sechenov First Moscow State Medical University, honorary academician of Russian academy of medical sciences (1988), and an outstanding representative of the Moscow anatomical school of the middle of XX – early XXI century. From the very beginning of his medical training, Mikhail Romanovich got interested in anatomy, especially in angiology and lymphology, and later concentrated on its studying. The author of more than 30 text books and guidelines for schools, universities, and colleges, Mikhail Romanovich was the doctoral and thesis advisor of 51 Ph.D. and approximately 70 MD dissertations. M.R. Sapin made a significant contribution to the development of anatomical education providing the departments with a various range of dry and wet specimens. His stunning and effective work as a tutor was highly appreciated by his students and colleagues, Russian and foreign anatomists. M.R. Sapin was the leader of the Laboratory of Functional Anatomy since 1972, president of the International Association of Morphologists (1992–2006), chairman of the expert commission of Higher Attestation Commission (1959–1994), etc. A man of a great willpower, M.R. Sapin faced a lot of obstacles in his life and research work but overcame that all successfully. The article presents the most important facts of anatomist’s career and lifetime.</jats:p
Verslag van het voorgevallene tijdens het hooge opperwater op de Nederlandsche rivieren in den winter van 1919 op 1920
No full textNadat de Rijn op 20 December 1919 tot even beneden den middelbaren zomerstand 1901-1910 (M.R.) was gedaald vertoonde zich op die rivier een sterke en vrij snelle was, waardoor het water te Keulen tot 6m +M.R. bij het einde van het jaar steeg. In de daarop volgende 11 dagen daalde de waterstand tot 1.5m +M.R. om daarna in 5 dagen weder te rijzen tot den zeer hoogen stand van 7m +M.R. Door een aanvankelijk sterken later flauweren val liep de stand weder terug tot 1.5m +M.R. op 30 Januari. Ook op de Maas vertoonden zich twee dicht op elkaar volgende sterke wassen. Bij den aanvang van den eersten was op 19 december stond het water te Maastricht op ruim 1m +M.R. en steeg het in 6 dagen tot 4.37m +M.R.; in de daaropvolgende 9 dagen bleef de stand steeds hoger dan 4m +M.R. en daalde toen tot ongeveer 2m +M.R. op 10 Januari 1920. De tweede was trad op laatsgenoemde datum in waarbij het water oplied tot 4.94m +M.R. op 15 Januari. Het water daalde daarna dadelijk en was op 29 Januari tot ongeveer 2m +M.R. weggevallen. Bij den tweeden was op Rijn en Maas werden de hoogst bekende waterstanden bij open rivieren overtroffen te Keulen met 7 cm en te Maastricht met 2 cm. De rivieren waren ijsvrij.Hoogwaterversla
An ultrastructural study of vascular endothelial junctions in normal and tensioned rat periodontal ligament
No full textUltrastructural changes in the microvascular bed of the periodontal ligament (PDL) incident to the applied forces have rarely been reported. Clark (1986) and Lew (1986) demonstrated changes in the fenestrae populations and Cooper (1988) established there was an increase of tissue channels when a tensile load was applied to the PDL. However, there are no published data on the effects on the endothelial junctions or their dimensions where there is an applied loading to the PDL. The purpose of this investigation was to morphologically study and quantitatively compare the dimensions of endothelial junctions in the microvascular bed of the normal PDL with those of the tensioned PDL. The rat maxillary molar specimen blocks were from Cooper's study (1988). Twelve week old male Porton rats were used as the experimental animal model. A 1.0 N. extrusive load was applied continuously, for a period of 30 minutes, to the right first molar. The contralateral left first molar served as the experimental control. The tissue r4as demineralized in a solution of 0.1 M. EDTA in O.06 M. cacodylate buffer and 2.5% glutaraldehyde for 8-12 weeks. Then the tissue was post-fixed in 2% osmium tetroxide, dehydrated through a graded ethanol series, infiltrated with propylene oxide and Agar® 100, and embedded in Agar® 100. Four matching pairs of experimental and control blocks from four animals were selected for this investigation. The silver sections were prepared using a Reichert-Jung OM-U4 ultramicrotome. The sections were stained with uranyl acetate and Reynolds' lead solution. The area to be examined was the PDL at the most mesial side of the first molar. The tissue was examined at levels 250 microns apart from the cervical to apical region. A minimal number of 150 complete junctions from the normal PDL and 150 complete junctions from tensioned PDL were selected randomly for the examination. A transmission electron microscope, JEM -2OOO FX, was used to examine and photograph the sections. The goniometer was used to explore the junctions so that the narrowest opposing membranes could be studied and measured. Measurements were made of the various widths and depths along the junctions. Five types of brood vessels were encountered in the investigation, i.e., venous capillaries, arterial capillaries, postcapillary-sized venules, terminal arterioles and small collecting venules. The morphology of the junctions was found to be related to the type of blood vessel. There were three types of junction found in the PDL microvasculature, i.e., close junctions, tight junctions and open junctions. No gap junctions were found. There were no significant differences in the numbers of each junction type between normal and tensioned PDL. A chi-square analysis also indicated that the proportion of tight junctions was not significantly different among different types of blood vessels. However, a significant change in the dimensions of junctions was found. Close junctions were in the majority forming 80% of all the junctions investigated. The width of the close region was approximately 5-6 nm. The junction width of the close junctions at the non-close/tight region increased (9.4%) as a result of extrusive -loads (p˂0.01). Since the close junctions comprise the majority of junctions in the PDL, the increase in the junction width could imply that the fluid and substrate exchange through the junctions also increased incident to the extrusive load. It is therefore possible that close junctions are one of the major exchange pathways i n the PDL microvasculature. Tight .junctions were found in approximately 16% of junction population. The tight regions where the opposing membranes fused were commonly found in the luminal third (87.5%). The tight regions appeared to be ‘spot-fusion’, rather than 'zone-fusion'. There was no significant change in the junction width of the tight junctions. Open .junctions were rarely found (4%). They were found only in the venous capillaries and postcapillary-sized venules where the walls were relatively thin. The pore sizes ranged from 136 nm. to 1231 nm. The junction depth was found to have a strong positive correlation to the endothelial walI thickness across the middle of the junction (p<0.001 ). The organization of the endothelial junctions in three dimensions could not be determined by thin section technique in this study. Since the three-dimensional reconstruction of tight junctions requires a series of ultrathin sections. Further investigation of junctions by freeze-fracture replicas is suggested.Thesis (MDS) -- University of Adelaide, Department of Dentistry, 199
An evaluation of elastic and oxytalan staining fibres in the temporomandibular joint and knee joint of the rabbit
No full textThesis (M.D.S.) -- University of Adelaide, Adelaide Dental School, 197
The role of complexing agents in the flotation of pentlandite-pyroxene mixtures
No full textBibliography: leaves 137-146.This study examines the role complexing agents play in pentlandite-pyroxene flotation and focuses on the surface chemistry and interaction between valuable and gangue minerals as well as the interaction of complexing agents and reagents (xanthate, copper sulphate) in the system at pH 9. Microflotation, zeta potential measurements, ToF-SIMS analyses (time of flight secondary ion mass spectrometry) and X-ray photoelectron spectroscopy (XPS) were used as tools in determining the extent of surface alteration
An evaluation of orthodontic services in South Australia
No full textThesis (M.D.S.) -- University of Adelaide, Dept. of Dental Health, 197
Seismic prevention and rahabilitation of nonstructural elements. Criteria to define a post-seismic damage analysis procedure
No full textIt reports very briefly the research work, developed by the author during her Doctorate course, about a post-seismic damage analysis procedure for nonstructural elements of framed structure building system
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