• Parasites, Hosts and Diseases
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• v.46 no.4
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• pp.229-234
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• 2008

The prevalence of Sarcocystis spp. was investigated by gross and histopathological examinations in 250 camels (Camelus dromedarius) slaughtered from 2002 to 2005 in the Mashhad Slaughterhouse, eastern Iran. Samples were taken from the diaphragm, heart, tongue, esophagus and masseter muscles for histopathological studies. No macroscopic sarcocysts were found in the samples at gross inspection. Sarcocysts were detected in 209 of 250 (83.6%) examined camels at histopathological level. The infection rate of the esophagus, heart, masseter muscles, diaphragm, and tongue was 58.8%, 48.0%, 46.8%, 41.6%, and 28.0%, respectively. There was no significant difference in the rate of infection between male (85.8%) and female (81.0%) camels. The tissue response to vital cysts was minimal; however, reaction to the degenerating cysts was severe and caused tissue damages resulting in hyperemia, hemorrhages, mononuclear cell infiltration, necrotic changes, and fibrosis. The wild and domestic carnivores especially dogs may be the final hosts of Sarcocystis spp. in this area.

• Korean Journal of Materials Research
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• v.15 no.7
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• pp.458-464
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• 2005

In microelectronics packaging, the reliability of the metal/polymer interfaces is an important issue because the adhesion strength between dissimilar materials is often inherently poor. The modification of polymer surfaces by ion beam irradiation and rf plasma is commonly used to enhance the adhesion strength of the interface. T-peel strengths were measured using a Cu/polyimide system under varying $N_2^+$ ion beam irradiation conditions for pretreatment. The measured T-peel strength showed reversed camel back shape regarding the fixed metal-layer thickness, which was quite different from the results of the 90° peel test. The elementary analysis suggests that the variation of the T-peel strength is a combined outcome of the plastic bending work of the metal and polymer strips. The results indicate that the peel strength increases with $N_2^+$ ion beam irradiation energy at the fixed metal-layer thickness.

• Korean Journal of Materials Research
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• v.15 no.1
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• pp.42-46
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• 2005

In microelectronics packaging, the reliability of the metal/polymer interfaces is an important issue because the adhesion strength between dissimilar materials is often inherently poor. The modification of polymer sufaces by ion beam irradiation and rf plasma are commonly used to enhance the adhesion strength of the interface. T-peel strengths were measured using a Cu/polyimide system under varying $Ar^+$ ion beam irradiation pretreatment conditions. The measured T-peel strength showed reversed camel back shape regarding the fixed metal-layer thickness, which was quite different from the results of the $90^{\circ}$ peel test. The elementary analysis suggests that the variation of the T-peel strength is a combined outcome of the plastic bending work of the metal and polymer strips. The results indicate that the peel strength increases with $Ar^+$ ion beam irradiation energy at the fixed metal-layer thickness.

• Asian-Australasian Journal of Animal Sciences
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• v.16 no.7
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• pp.1071-1086
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• 2003

Reproductive biotechnologies continue to be developed for genetic improvement of both river and swamp buffalo. Although artificial insemination using frozen semen emerged some decades back, there are still considerable limitations. The major problem appears to be the lack of efficient methods for estrus detection and timely insemination. Controlled breeding experiments in the buffalo had been limited and similar to those applied in cattle. Studies on multiple ovulation and embryo transfer are essentially a replica of those in cattle, however with inherent problems such as lower number of primordial follicles on the buffalo ovary, poor fertility and seasonality of reproduction, lower population of antral follicles at all stages of the estrous cycle, poor endocrine status and a high incidence of deep atresia in ovarian follicles, the response in terms of transferable embryo recovery has remained low with 0.51 to 3.0 per donor and pregnancy rates between 15 to 30%. In vitro production of buffalo embryos is a valid alternative to recovery of embryos by superovulation. This aspect received considerable attention during the past decade, however the proportion of embryos that develops to the blastocyst stage is still around 25-30% and hence the in vitro culture procedures need substantial improvement. Embryo cryopreservation procedures for direct transfer post thaw need to be developed for bubaline embryos. Nuclear transfer and embryo cloning is a technique that has received attention in various species during recent years and can be of immense value in buffaloes as they have a low rate of embryo recoveries by both in vitro and in vivo procedures. Gender pre-selection, genome analysis, gene mapping and gene transfer are a few of the techniques that have been studied to a limited extent during recent years and are likely to be included in future studies on buffaloes. Very recently, reproductive biotechnologies have been applied to feral buffaloes as well, but the results obtained so far are modest. When fully exploited they can play an important role in the preservation of endangered species.

• Korean Journal of Child Studies
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• v.38 no.1
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• pp.95-116
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• 2017

Objective: Middle school girls who belonged to the concerned group in their school assessment were treated by sandplay for relieving their emotional and behavioral difficulties. The purpose of this study was to explore the change of the internal world of the girls through sandplay. Methods: Analytical psychology and sandplay theories were used for this exploration, especially Turner's (2005) content themes in sandplay. The participants were four first-grade girls. Pre-test measures, a 12-session sandplay program, and post-test measures were administered. Results: For the first girl, the initial phase was 1-6 (time trip), the intermediate phase was 7-9 (seeking for an inner island), and the final phase was 10-12 (seeking for a real stone). For the second girl, the initial phase was 1-5 (my heart was like cold weather), the intermediate phase was 6-10 (fallen, sick, and risen), and the final phase was 11-12 (trophy given to me). For the third girl, the initial phase was 1-5 (seeking for oasis), the intermediate phase was 6-10 (difficult trip for climbing with camel), and the final phase was 11-12 (discovering oasis). For the fourth girl, the initial phase was 1-3 (an island drowning shortly ), the intermediate phase was 4-10 (my unknowable mind), and the final phase was 11-12 (a tree growing well). Conclusion: This study showed psychological phenomena in the sandplay of four girls such as opposites and the union of masculinity and femininity as they explored their own identity. Drawing tests and counselling objects indicated positive changes; thus, these findings support the effectiveness of sandplay therapy for transforming the psyche of middle school girls.

• Journal of Ecology and Environment
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• v.42 no.3
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• pp.103-110
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• 2018

Backgrounds: In arid grasslands, wells are subject to heavy trampling and grazing pressure, which can increase vulnerability to local land degradation. To investigate trampling and grazing, we surveyed plant communities at three well sites in the desert steppe of Mongolia, using 1600-m line transects from the wells. The sites (Bshrub, Sshrub, and shrubL) differed by concomitant shrub type (big shrub, small shrub, and shrub-limited) and livestock pressure (light, medium, and heavy). A plant classification scheme based on edibility and morphology (rosette or creeping type) was used to separate grazing and trampling effects on plant communities. Results: Edible plants were dominant at all sites but a fraction of grazing- and trampling-tolerant plants increased in the order Bshrub, Sshrub, and shrubL, following livestock pressure. Clear transition zones from inedible to edible plant groups were recognized but at different locations and ranges among the sites. Trampling-tolerant plants explained 90% of inedible plants at Sshrub with camels and horses, but grazing-tolerant plants prevailed (60%) at shrubL with the largest livestock number. Plant coverage increased significantly along the transects at Bshrub and Sshrub but showed no meaningful change at shrubL. Herbaceous plant biomass showed significant positive and negative trends at Bshrub and shrubL, respectively. Conclusions: Both grazing and trampling can produce larger fractions of inedible plants; in this, camel and horses can have considerable effects on desert-steppe plant communities through trampling.

• Korean Journal of Animal Reproduction
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• v.7 no.2
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• pp.8-26
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• 1983

Various early pregnancy diagnostic methods have been developed in order to improve the reproductive efficiency in cow, mare, mule, sow, sheep, goat, dog, cat, rabbit, buffalo, camel, elephant, monkey, deer, lion, coipus and guinea pig. These methods include abdominal swelling, abdominal palpation, esturs cylce detection, Lupin test, gonadotropin assay, colostrum injection test, sperm motility assessment, cervical mucus viscosity test, Kaber chromagens method, estrogen test, A Scheim-Zond다 test, spectrophotometric detection of estrogen in urine and feces, boric acid crystraline formation test in urine, oxytocin injection test, diamino-oxidase test, PMSG HA test, behaviour test, Simolus iodine detection test, detection of tryptophane in urine, x-ray method, Cuboni and Lunaas method, vaginal biopsy method, Friedmann Schneider diagnostic method, electrode method, barium chloride detection method, ECG, Doptone method, ultrasound method, ultrasound scanning method, LDH method, rectal palpation method, CL palpation method, radioautography, serum creatine test, serum globulin test, chlormadine method, CAP method, Medata Do, pp.ers method, body fluid test, Plasma oCS detection method, ERIA, LHRH method, negative latex cogulation test and oestrone sulphate detection method. The most reliable methods with high a, pp.icability to farm animals such as sheep, mare, sow and cow are rectal palpation, ultrasound method and hormonal assay in blood and milk. However, they require complicated laboratory works for the early diagnosis of pregnancy and in most cases, the simple and economical methods which are described up to now need a long period of time after conception. Generally, it is possible to detect pregnancy after one estrus cycle, even though it varies depending on the species of animals. For improvement of the reproductive efficiency, it is required to develop a more accurate, economical, simple and early detectable method. It is anticipated that the result of a study on the detection method of EPF(early pregnancy factor) would be a, pp.icable to various animals within 6 hours after conception.

• Journal of Animal Science and Technology
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• v.59 no.5
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• pp.12.1-12.7
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• 2017

Background: Despite the widespread use of dexamethasone in veterinary and human medicine, it is reported to cause some severe pregnancy related side effects like abortion in some animals. The mechanism of the response is not clear but seems to be related to interspecies and/or breed difference in response which may involve alterations in the concentrations of some reproductive hormones. Methods: Twenty Sahel goats comprising 18 does and 2 bucks were used for this study. Pregnancies were achieved by natural mating after synchronization. Repeated dexamethasone injections were given at 0.25 mg/kg body weight. Blood samples were collected biweekly for hormonal assay. Uterine biopsies were harvested at days 28 and day 78 of gestation through caesarean section for immunohistochemical analysis using 3 pregnant does randomly selected from each group at each instant. Data were expressed as Means ${\pm}$ Standard Deviations and analyzed using statistical soft ware package, GraphPad Instant, version 3.0 (2003) and progesterone receptor (PR) were scored semi-quantitatively. Results: Dexamethasone treatments had no significant (p > 0.05) effect on progesterone and estrogen concentrations in pregnant Sahel goats but up regulated PR from 2+ to 3+ in second trimester. Conclusion: As dexamethasone adverse effect on placenta is an established fact, the lack of effect on progesterone level in this study may be due to the fact that unlike other species whose progesterone production during pregnancy is placenta - dependent, in goats is corpus luteum - dependent. Consequently dexamethasone adverse effect on placenta reported in literatures did not influence progesterone levels during pregnancy in Sahel goat. The up regulation of progesterone receptor (PR) in Sahel goat gravid uterus is a beneficial effects and that dexamethasone can safely be used in corpus luteum - dependent progesterone secreting pregnant animal species like Sahel goat and camel. Therefore source of progesterone secretions during pregnancy should be considered in clinical application of dexamethasone in pregnancy.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.7
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• pp.21-29
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• 2004

Hot carrier degradation characteristics of Nano-scale CMOSFETs with dual gate oxide have been analyzed in depth. It is shown that, PMOSFET lifetime dominate the device lifetime than NMOSFET In Nano-scale CMOSFETs, that is, PMOSFET lifetime under CHC (Channel Hot Carrier) stress is much lower than NMOSFET lifetime under DAHC (Dram Avalanche Hot Carrier) stress. (In case of thin MOSFET, CHC stress showed severe degradation than DAHC for PMOSFET and DAHC than CHC for NMOSFET as well known.) Therefore, the interface trap generation due to enhanced hot hole injection will become a dominant degradation factor in upcoming Nano-scale CMOSFET technology. In case of PMOSFETs, CHC shows enhanced degradation than DAHC regardless of thin and thick PMOSFETs. However, what is important is that hot hole injection rather than hot electron injection play a important role in PMOSFET degradation i.e. threshold voltage increases and saturation drain current decreases due to the hot carrier stresses for both thin and thick PMOSFET. In case of thick MOSFET, the degradation by hot carrier is confirmed using charge pumping current method. Therefore, suppression of PMOSFET hot carrier degradation or hot hole injection is highly necessary to enhance overall device lifetime or circuit lifetime in Nano-scale CMOSFET technology

• Journal of the Korean Society of Costume
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• v.45
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• pp.85-102
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• 1999

The purpose of this study is reviewing and researching the origins of knitwear the history of patterned knits. Aithough historians know little about the origins of knitting many believe it was practiced as early as the 4th century by nomads roaming North Africa. later Arab raders adopted the craft which helped then while away the hours as they traveled across deserts in camel carabans, Its origins lie in the need for close-fitting and elasticated covering for the body in particular the head hand and feet. it first developed in the Mediterranean countries and later in Central and particularly Northern Europe. Early evidence of multicolored knitting is said to date back to the Egyptian Copts of 600-800 A.D. medieval knitting is developed through the Church and monastery. The increasing demand for knitted products already observable in the fourteenth and fifteenth centries and the number of preserved knitted articles increases inexcavated materialos from Europe. The improvements in technique stimulated the developement of the hand knitting industry in the early sixteenth century. The best-known source of production is the guild organization and their mass production consisted of the carpets cushion coverings and other small items for furnishing interiors but mainly of clothing. The demand for knitted goods was such that in the late sixteenth century it was mechanised, The knitting frame invented in 1589 by William Lee English priest was the most perfect machine of this period. The mass production of fully-fashioned and seamless garments in the late nineteenth and twentieth century was dangerously competitve to traditionally woven and sewn cloth in. As fashions changed knitwear has had an almost continuous ruse in public favour and the popularity of sports has encourage the fashion for flexible easy-fitting and absorbent garments.