Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6     

Chollet M  Guerin L  Uchida N  Fukaya S  Shimoda H  Ishikawa T  Matsuda K  Hasegawa T  Ota A  Yamochi H  Saito G  Tazaki R  Adachi S  Koshihara SY 《Science (New York, N.Y.)》2005,307(5706):86-89

We report that the organic salt (EDO-TTF)2PF6 with 3/4-filled-band (1/4-filled in terms of holes), which forms an organic metal with strong electron and lattice correlation, shows a highly sensitive response to photoexcitation. An ultrafast, photoinduced phase transition from the insulator phase to the metal phase can be induced with very weak excitation intensity at near room temperature. This response makes the material attractive for applications in switching devices with room-temperature operation. The observed photo-induced spectroscopic change shows that this photoinduced phase transition process is caused by the cooperative melting of charge ordering assisted by coherent phonon generation.  相似文献   

Application of cycling index and input-output environs for interpretation of nutrient flows in mixed rice-beef production systems in Japan     

Yusuke TABATA  Kazato OISHI  Hajime KUMAGAI  Hiroyuki HIROOKA 《Animal Science Journal》2009,80(3):352-359

The objective of the present study was to apply two methods developed in ecology, the cycling index and input-output environs, to interpret nutrient flows in mixed rice-beef production systems. The cycling index (CI) was a quantitative measure of nutrient cycling. It was defined as the proportion of cycled nutrients to the total amount of nutrient flows. On the other hand, the input-output environs provide a quantitative distribution on a particular input or output. In this study, these methods were applied to the nutrient flows in the mixed rice-beef production systems in Japan. The results of CI provided information on the effects of nutrient cycling on the efficient conversion of nutrient imports to nutrient export. The results of input-output environs indicated that the indices represent indirect effects provided by the interaction between rice and beef production. In conclusion, these methods indicated new findings on nutrient utilization in the systems. The results of this study implied the further applicability of these two methods to the study of nutrient flows in mixed crop-animal production systems.  相似文献   

Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)     

M. Matsubara  P.M. Lokman  A. Senaha  Y. Kazeto  S. Ijiri  A. Kambegawa  T. Hirai  G. Young  T. Todo  S. Adachi  K. Yamauchi 《Fish physiology and biochemistry》2003,28(1-4):353-354

The control of 11-ketotestosterone (11-KT) biosynthesis and its physiological roles were examined in female Japanese eel (Anguilla japonica) and New Zealand longfinned eel (Anguilla dieffenbachii). 11-KT was detected in serum of female eels of both species. Among various tissues from Japanese eel, the ovary had the greatest capacity to synthesize 11-KT in vitro. In addition, the oocyte diameters of eels treated with 11-KT had increased significantly. Furthermore, these oocytes were found to have an increased number of oil droplets. These findings suggest that 11-KT in female eels may be mostly of ovarian origin and that this androgen appears to play an important role in controlling pre-vitellogenic oocyte growth.  相似文献   

Surgical outcomes in dogs with tracheal collapse treated with a novel cross-and-hook braided endoluminal stent     

Akiko Uemura  Yusuke Ozai  Lina Hamabe  Tomohiko Yoshida  Ryou Tanaka 《Journal of veterinary science (Suw?n-si, Korea)》2022,23(3)

BackgroundStenting is an effective treatment option for tracheal collapse in dogs. Cross-braided tracheal stents are currently the norm in veterinary medicine, but cross-and-hook braided stents have recently been adopted in human medicine. We examined whether stents manufactured using this novel braiding technique provided additional advantages for the treatment of tracheal collapse in dogs.ObjectivesTo evaluate the outcomes of cross-and-hook braided stent implantation in the treatment of tracheal collapse in dogs.MethodsThe medical records of 22 client-owned dogs that underwent luminal placement of cross-and-hook braided Fauna Stents for the treatment of tracheal collapse between January 2018 and July 2021 were examined and data on canine signalment, clinical signs, diagnostic test results, surgical outcomes, and postoperative complications were retrieved and analyzed statistically.ResultsTwenty-six stents were surgically implanted, with 20 dogs (90.9%) receiving one stent and the remaining two (9.1%) receiving two or more stents. All dogs survived the procedure. The median survival time at a median follow-up of 990 days was 879 days. At the final follow-up examination, loss or mild improvement of cough was observed in all dogs.ConclusionsCompared with conventional lumen stents, the cross-and-hook braided Fauna Stent offered a higher survival rate and improved clinical symptoms in all patients. The results of this study suggest that the Fauna Stent may be a promising treatment option for dogs with tracheal collapse.  相似文献   

Protein at 69 kDa Expressed During the Initial Maturation Stage of Buckwheat (Fagopyrum esculentum) Seed Development     

Arun Nair  Taiji Adachi 《Cereal Chemistry》1999,76(2):321-322

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