Studies on the asian eupatoria

The examination of 1976 herbarium specimens ofEupatorium chinense subsp.sachalinense var.oppositifolium and 908 of var.sachalinense revealed their distinct geographical and ecologial distribution patterns. Var.oppositifolium includes two distinct groups: the diploid type and the polyploid one. The distribution of the diploid type is restricted to the “Sohayaki-Region”, and its habitat appears to be restricted to fragile gravitational slopes and rocky areas which lack tall competitors. In contrast, the polypoid type is widely distributed throughout the Japan Archipelago. The polyploids grow successfully in recently cleared dry habitats and in repeatedly disturbed tall grass and forb communities. Climatic warming after the last-glaciation combined with explosive agricultural developments and the polyploids rapid and tall growth habits with agamospermous reproduction seem to have facilitated their northward migration and distributional expansion. Karyotype analyses were made on 29 populations of var.oppositifolium which comprised eight cytotypes: 2x, 3x, 4x, 5x based on x=10, 3 chromosomally deficient polyploids and an aneuploid with 2n=39. Most populations exhibited various combinations of polyploid cytotypes. Different polyploid cytotypes show no apparent habitat preferences. None of the polyploid cytotypes appear to compete with each other in colonizing and exploiting newly disturbed habitats. This, together with their agamospermous propagation, rare sexuality and random association when colonizing, can result in an intricate mixture of various cytotypes within local populations.     

Lymphedema of the eyelids

Lymphedema of the eyelids is a relatively rare condition whose main effect is to obstruct vision, and it is unsightly. We present 3 cases in which the edema was treated by excision and skin grafting of the eyelid, with satisfactory functional and cosmetic results. It is suggested that a split-skin graft be used for the upper eyelid and a full-thickenss graft for the lower eyelid. The lower eyelid skin can be "de-fatted" and used as a graft, but in the more severe cases we suggest a postauricular skin graft be used.     

A comparative ecology of asian apes

Field sudies of orang-utans, gibbons, and siamangs in Borneo, Sumatra, and Malaya provide evidence to show that, irrespective of species feeding preferences, differences in body size guarantee sufficient ecological separation for different ape species to coexist.     

Laser blepharoplasty for making double eyelids in Asians

The double-eyelid operation is a cosmetic procedure performed primarily on Asians who have no supratarsal folds. The goal in Oriental blepharoplasty is to ensure a stable double-eyelid fold with predictable and long-lasting results. Candidates for this procedure desire attractive eyelids with a natural-looking fold. Today, the CO2 laser is used as a surgical tool by plastic surgeons, and its use in cosmetic surgery has recently been expanded to blepharoplasties.We used the high-power CO2 laser (UltraPulse; Coherent, Santa Clara, Calif.) in the double-eyelid operation. Between September of 1995 and September of 1999, a total of 241 patients underwent laser double-eyelid operations at Korea University Medical Center and Dr. Choi's Aesthetic Clinic, with an average follow-up of 18 months.By using the CO2 laser, we could create a stable double-eyelid fold with long-lasting results. The rate of fold release was 2 percent, which was less than the rate using the conventional scalpel incision method. The CO2 laser contributed to a reduction in pain or discomfort after the operation; therefore, patient comfort and early recovery could be enhanced after double-eyelid surgery. In the healing of the incision line, it showed mild redness for 3 weeks, but long-term follow-up showed the scar produced by the laser appeared to be equal in quality compared with the conventional method. Laser blepharoplasty is a useful and effective method to create a stable and attractive double eyelid for Asian patients.     

Digestive strategy of the asian colobine genusTrachypithecus

The Asian colobines,Trachypithecus obscurus andT. cirstantus, eat plant-based diets containing 55–80% leaves. The structural polysaccharides in leaves and other plant parts require microbial fermentation before they can be used as an energy source by the monkeys. The major compartments of the gastro-intestinal tract ofTrachypithecus are a voluminous haustrated stomach, a long small itnestine and capacious haustrated hindgut, all of which contribute to the digestive strategy of these two species. Results of digesta marker passage studies indicate there is prolonged retention of digesta for fermentation in both the stomach and haustrated colon. The digestive strategy of these colobines is defined as gastro-colic fermentation, unlike that of other forestomach fermenters in which the hindgut fermentation is of secondary importance.     

Reconstruction of both eyelids following electrical burn

A case of severe electrical burn of the unilateral upper and lower eyelids is reported, together with the surgical technique of reconstruction. A 25-year-old man suffered an electrical burn on his left eyelids. On admission, his left upper and lower eyelids were subtotally necrotic. Total eyelid reconstruction was performed 2 1/2 months later. A chondromucosal graft taken from the nasal septum was utilized as the deep layer of the upper eyelid, which was covered by sliding down the remaining levator muscle and connective tissues to maintain the blood supply to the composite graft. The outer layer of the upper lid was reconstructed with a free split-thickness skin graft. The lower lid was reconstructed with a local flap lined with a free mucosal graft. This sandwich method using the levator muscle as a core was found useful for reconstructing both the upper and lower eyelids.     

Freshwater finfish biodiversity and conservation: an asian perspective

Aspects on biodiversity and conservation of the ichthyofauna in the Asian region, in comparison to that of Africa, Europe and North America have been relatively less documented. This paper attempts to evaluate the above aspects in the East, and South and Southeast Asia based on available information in the literature. The familial diversity in inland waters in Asia (121 families) is considerably higher than in African and Latin American. Also, the finfish faunal diversity of 21 major river basins in East, and South and Southeast Asian indicate that species diversity is not necessarily related to familial diversity. The fish fauna in the region considered presently is highly diverse with an estimated cumulative total of 7447 species. Amongst the freshwater fishes the dominant groups are cyprinids (Cyprinidae, about 1000 species), loaches (about 400 species) of the families Balitoridae and Cobitiidae, gobids (Gobiidae, 300 species), catfishes (Bagridae, about 100 species), and the Osphronemidae (85 species). In the region, 462 freshwater finfish species are reckoned to be threatened, accounting for 17.5% of the all finfish species in this status in the world. In the region there are 66 species that are critically endangered and/or endangered, of which 32 are cyprinids, 14 of which are endemic to Lake Lanao, Mindano Island, Philippines. The diversity of freshwater fish species in the region was significantly related to the land area of the different countries in the following manner: