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  • 1
    Unknown
    Ecology of Anguilliform leptocephali: remarkable transparent fish larvae of the ocean surface layer (2009)
    Tokyo : TERRAPUB
    Details
    Keywords: leptocephali ; Anguilliformes ; eels ; fish larvae ; early life history ; larval ecology ; larval growth rates ; larval distribution ; metamorphosis ; recruitment
    Description / Table of Contents: 1. Introduction --- 2. Biology of leptocephali --- 2-1. Developmental stages --- 2-2. Morphological features --- 2-3. Sensory organs --- 2-4. Feeding ecology --- 2-5. Physiology and energetics --- 2-6. Growth of leptocephali --- 2-7. Metamorphosis --- 2-8. Swimming behavior --- 3. Zoogeography of leptocephali --- 3-1. Taxonomic groups of eels --- 3-2. Spawning areas of eels --- 3-3. Distribution and abundance of leptocephali --- 3-4. Seasonal occurrence of leptocephali --- 4. Ecology of leptocephali --- 4-1. Depth distribution and vertical migration --- 4-2. Survival and predation --- 4-3. Recruitment behavior --- 5. General discussion and future perspectives --- 5-1. Biology of leptocephali --- 5-2. Leptocephalus growth --- 5-3. Zoogeography and diversity of leptocephali --- 5-4. The leptocephalus larval strategy --- 5-5. Oceanic changes and leptocephalus recruitment --- 5-6. Ecological significance of leptocephali in the surface layer --- 5-7. Future research perspectives
    Pages: Online-Ressource (94 Seiten)
    ISBN: 1882322X
    URL: http://www.terrapub.co.jp/onlinemonographs/absm/abstract/02/0204.html
    Language: English
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  • 2
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    International Librarianship (2023)
    State University of New York Press | State University of New York Press
    Details
    Publication Date: 2024-03-29
    Description: International librarianship stems from a desire to bring about political change, transcultural understanding, collaboration, and mutual respect. Historically, librarians have been deeply involved with challenging issues of information sharing, equity in information access, and bridging the digital divide between different socioeconomic communities. This collection draws on case studies from American librarians who traveled to Central America, the Caribbean, Central Europe, Africa, the Mediterranean, and Asia to participate in librarian-initiated and sponsored projects. They united communities, promoted religious and cultural tolerance, developed new facilities, or enhanced existing libraries and archives, thereby enriching communities with resources, professional expertise, new partnerships, and sustainable development practices. 〈i>International Librarianship〈/i> offers insight into how these experiences might serve as templates and promote best practices in collaborations within the library profession in the United States and abroad, and it also demonstrates how international experiences can enliven home institutions upon return.
    Keywords: Education ; Teaching Methods & Materials ; Library Skills ; Language Arts & Disciplines ; Library & Information Science ; Collection Development ; bic Book Industry Communication::J Society & social sciences::JN Education::JNS Teaching of specific groups & persons with special educational needs::JNSV Teaching of students with English as a second language (TESOL) ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GL Library & information sciences::GLH Acquisitions & collection development ; thema EDItEUR::J Society and Social Sciences::JN Education::JNU Teaching of a specific subject ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GL Library and information sciences / Museology::GLH Acquisitions and collection development
    Language: English
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    Format: image/jpeg
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  • 3
    Electronic Resource
    Electronic Resource
    Potentiometric analysis of the purified cytochrome d terminal oxidase complex from Escherichia coli. (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 1051-1056 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00301a003
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  • 4
    Electronic Resource
    Electronic Resource
    Reconstitution of the membrane-bound, ubiquinone-dependent pyruvate oxidase respiratory chain of Escherichia coli with the cytochrome d terminal oxidase (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 445-453 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00298a008
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  • 5
    Electronic Resource
    Electronic Resource
    Allyl sulfones as synthons for 1,1- and 1,3-dipoles via organopalladium chemistry (1980)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 102 (1980), S. 5979-5981 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00538a079
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  • 6
    Electronic Resource
    Electronic Resource
    1,5-Disubstituted cyclooctatetraenes (1989)
    s.l. : American Chemical Society
    The @journal of organic chemistry 54 (1989), S. 2331-2335 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00271a017
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  • 7
    Electronic Resource
    Electronic Resource
    tert-Butyl-substituted cyclooctatetraenes (1981)
    s.l. : American Chemical Society
    The @journal of organic chemistry 46 (1981), S. 1977-1984 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00323a001
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  • 8
    Electronic Resource
    Electronic Resource
    Spawning ofConger oceanicus andConger triporiceps (Congridae) in the Sargasso Sea and subsequent distribution of leptocephali (1994)
    Springer
    Environmental biology of fishes 39 (1994), S. 339-355 
    Details
    ISSN: 1573-5133
    Keywords: Anguilla ; Caribbean Sea ; Florida Current ; Fronts ; Gulf of Mexico ; Migration ; North Atlantic Ocean ; Subtropical Convergence Zone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis Distribution of leptocephali ofConger in the Western North Atlantic Ocean was studied using specimens from our collections, specimens from other collections, and various existing collection records. The presence of leptocephali ofConger oceanicus andConger triporiceps 〈 30 mm long over deep water in the southwestern Sargasso Sea in autumn and winter implies a protracted spawning period there. The subtropical convergence zone, meandering east-west across the Sargasso Sea, is probably the northern limit of spawning of both species. Spawning may also occur close to the Bahamas and Antilles.C. triporiceps may spawn also in the Caribbean Sea judging by the capture of small leptocephali in the western Caribbean and of the more southerly continental distribution of its juveniles. The claim of Johannes Schmidt in 1931 that the EuropeanC. conger spawns across the North Atlantic into the western Sargasso Sea is probably incorrect, because leptocephali ofConger are rare in the eastern Sargasso Sea and becauseC. triporiceps, with myomere numbers overlapping those ofC. conger, was recently described in the western North Atlantic. With increasing size, leptocephali ofC. oceanicus and a portion ofC. triporiceps spread westward and northward in the Florida Current and Gulf Stream, but larger leptocephali especially ofC. triporiceps are found also in the Caribbean and Gulf of Mexico. Spawning ofC. oceanicus in the Sargasso Sea indicates that adults cross the Florida Current-Gulf Stream, and successful leptocephali cross the current in the opposite direction to colonize juvenile habitat on the continental shelf, a migratory pattern similar to that of the American eelAnguilla rostrata (Anguillidae).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00004803
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  • 9
    Electronic Resource
    Electronic Resource
    Bone formation by three-dimensional stromal osteoblast culture in biodegradable polymer scaffolds (1997)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 36 (1997), S. 17-28 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Bone formation was investigated in vitro by culturing stromal osteoblasts in three-dimensional (3-D), biodegradable poly(DL-lactic-co-glycolic acid) foams. Three polymer foam pore sizes, ranging from 150-300, 300-500, and 500-710 μm, and two different cell seeding densities, 6.83 × 105 cells/cm2 and 22.1 × 105 cells/cm2, were examined over a 56-day culture period. The polymer foams supported the proliferation of seeded osteoblasts as well as their differentiated function, as demonstrated by high alkaline phosphatase activity and deposition of a mineralized matrix by the cells. Cell number, alkaline phosphatase activity, and mineral deposition increased significantly over time for all the polymer foams. Osteoblast foam constructs created by seeding 6.83 × 105 cells/cm2 on foams with 300-500 μm pores resulted in a cell density of 4.63 × 105 cells/cm2 after 1 day in culture; they had alkaline phosphatase activities of 4.28 × 10-7 and 2.91 × 10-6 μmol/cell/min on Days 7 and 28, respectively; and they had a cell density that increased to 18.7 × 105 cells/cm2 by Day 56. For the same constructs, the mineralized matrix reached a maximum penetration depth of 240 μm from the top surface of the foam and a value of 0.083 mm for mineralized tissue volume per unit of cross sectional area. Seeding density was an important parameter for the constructs, but pore size over the range tested did not affect cell proliferation or function. This study suggests the feasibility of using poly(α-hydroxy ester) foams as scaffolding materials for the transplantation of autogenous osteoblasts to regenerate bone tissue. © 1997 John Wiley & Sons, Inc.
    Additional Material: 7 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Student research award in the doctoral degree candidate category, Society for Biomaterials 23rd Annual Meeting, New Orleans, LA, April 30-May 4, 1997: Ectopic bone formation by marrow stromal osteoblast transplantation using poly(DL-lactic-co-glycolic acid) foams implanted into the rat mesentery (1997)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 36 (1997), S. 1-8 
    Details
    ISSN: 0021-9304
    Keywords: poly(α-hydroxy esters) ; biodegradable polymer scaffolds ; osteoblast transplantation ; boye tissue engineering ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Porous biodegradable poly(DL-lactic-co-glycolic acid) foams were seeded with rat marrow stromal cells and implanted into the rat mesentery to investigate in vivo bone formation at an ectopic site. Cells were seeded at a density of 6.83 × 105 cells/cm2 onto polymer foams having pore sizes ranging from either 150 to 300 or 500 to 710 μm and cultured for 7 days in vitro prior to implantation. The polymer/cell constructs were harvested after 1, 7, 28, or 49 days in vivo and processed for histology and gel permeation chromatography. Visual observation of hematoxylin and eosin-stained sections and von Kossa-stained sections revealed the formation of mineralized bonelike tissue in the constructs within 7 days postimplantation. Ingrowth of vascular tissue was also found adjacent to the islands of bone, supplying the necessary metabolic requirements to the newly formed tissue. Mineralization and bone tissue formation were investigated by histomorphometry. The average penetration depth of mineralized tissue in the construct ranged from 190 ± 50 μm for foams with 500-710-μm pores to 370 ± 160 μm for foams with 150-300-μm pores after 49 days in vivo. The mineralized bone volume per surface area and total bone volume per surface area had maximal values of 0.028 ± 0.021 mm (500-710-μm pore size, day 28) and 0.038 ± 0.024 mm (150-300-μm, day 28), respectively. As much as 11% of the foam volume penetrated by bone tissue was filled with mineralized tissue. No significant trends over time were observed for any of the measured values (penetration depth, bone volume/surface area, or percent mineralized bone volume). These results suggest the feasibility of bone formation by osteoblast transplantation in an orthotopic site where not only bone formation from transplanted cells but also ingrowth from adjacent bone may occur. © 1997 John Wiley & Sons, Inc. J Biomed Mater Res, 36, 1-8 1997.
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