10 research outputs found
Synthesis and Photophysical Properties of Luminescent Compounds Containing Chalcogen Atoms Incorporated Bulky and Rigid Skeletons
学位記号番号 : 博理工甲第901号博士の専攻分野の名称 : 博士(理学)
学位授与年月日 : 平成25年3月22日textapplication/pdfthesi
PTA活動及びその発展的活動の可能性と課題 ー家庭と地域とをつなぐ学校の役割に特に注目してー
text紀要論文 / Departmental Bulletin Paperdepartmental bulletin pape
Effect of Intravaginal PRID Insert on Uterine Involution and Conception Rate in Early Postpartum Japanese Black Cows
Effect of progesterone-releasing intra vaginal device (PRID) with estrogen (E2) capsule on postpartum uterine involution and conception rate with timed artificial insemination (TAl) were investigated in Japanese Black Cows. On the day when GnRH-B (GnRH-Buserelin) or PGF2α (Prostaglandin F2α) analog was administered on Day 0 (30 days after parturition), the ratio of cows possessing functional corpus luteum (CL) and plasma progesterone concentrations on Day 7 were significantly increased (P < 0.01) as compared on Day O. From Day 7 to Day 16, PRID was inserted into the vagina of cows. At the time of the PRID removal, PGF2α analog was administered, and E2 at 24 h or GnRH-F (GnRH-Fertirelin) at 48 h after PRID removal was treated, and TAl was performed at 56 h after PRID removal. The conception rate by TAl was increased in the cows that possessing functional CL compared in the cows without CL on Day 7. Also, the uterus significantly involuted with their diameter from 40.5 ± 6.2 mm on Day 0 to 33.4 ± 3.2 mm on Day 28 (P < 0.01), and the viable bacterial count in the external uterine orifice (CFU) showed a tendency to decrease from 2.6 ± 3.5 CFU on Day 0 to 1.0 ± 1.2 CFU on Day 28 (P = 0.63). In conclusion, the activation of folliculogenesis with PRID insertion in early postpartum have promoted the uterine involution, and contributed the increase of the conception rate by TAl.黒毛和種牛において, 分娩後の子宮修復や定時人工授精(定時AI) に対するエストロジェン(E2)カプセルのついたプロジェステロン(P4)徐放剤(PRID)の効果を調べた. その結果, Day 0(分娩後30日)にGnRH-B(酢酸ブセレリン10μg) か, PGF2α(クロプロステノール500μg)を投与すると, Day 7で卵巣に機能的な黄体のある牛が増加し, 血中P4濃度もDay 0 と比較し有意に上昇した(P<0.01). 今回, Day 7からDay 16まで腟内にPRIDを挿入, 抜去時にPGF2αを投与, その後24時間に安息香酸エストラジオール1mgまたは48時間にGnRH-F(酢酸フェルチレリン100μg)を筋肉内投与して, 56時間に定時AIを行った. その結果, 定時AIの受胎率はDay 7に黄体がない牛よりもある牛で高い傾向にあった. また, Day 0からDay 8にかけ, 左右子宮角の長さは有意に短くなり(P<0.01), 同時に外子宮口の細菌数も減少する傾向にあった. 結論として, 分娩後早期からの卵巣賦活とPRID処置は, 子宮修復を促し, 受胎率の向上に寄与することが示された.departmental bulletin pape
CFD simulation of flow in model pump sumps for detection of vortices
application/pdfDemand is high for reducing the size of sumps to reduce construction costs of urban drainage pump stations. As a result of the reduction in size, undesirable vortices like air-entrained and submerged vortices are apt to appear in the sumps because of increases in flow velocities. Based on criteria in the JSME Standard, the appearance of such vortices is not permissible for conventional sumps, experiments with scale models usually have been done to assess the performance of these sumps. However, those tests are expensive and time-consuming, and therefore, alternative CFD methods for evaluating sump performance have been expected. The JSME Standard "Standard Method for Model Testing the performance of a Pump Sump" was revised in March 2005 by a committee of the Turbomachinery Society of Japan. The committee also established a benchmark for flows in model sumps applying ten CFD codes. The calculated results were compared for flow patterns, locations of vortices, and their vorticity. Although the simulated flow patterns near the bell are almost all the same, the calculated values of the local vorticity were much more different among the various codes. It was confirmed that the existence of air-entrained and submerged vortices could be predicted by applying a newly developed identification method for vortices.8th Asian International Fluid Machinery Conference October 12-15, 2005・Yichang, Chinaconference pape
Cobalt(III) complexes with (±)-1,3-pentanediamine-<i>N,N,N’,N’</i>-tetraacetate. The influence of nature of alkali and alkaline earth metal counter cations on the supramolecular association of the complex
The coordination of hexadentate (±)-1,3-pentanediamine-N,N,N’,N’-tetraacetate (1,3-pndta) ligand with Co(III) has been investigated. Four octahedral [Co(1,3-pndta)]− complexes containing different counter cations, Li[Co(1,3-pndta)]⋅4H2O (1a), Li[Co(1,3-pndta)]⋅2H2O (1b), K[Co(1,3-pndta)]⋅H2O (1c) and Ca[Co(1,3-pndta)]2⋅5H2O (1d), were synthesized and structurally characterized. Single-crystal X-ray diffraction analysis, IR, NMR (1H and 13C) and electronic absorption spectroscopy were used for characterization of 1a − d. The influence of the ethyl substituent of 1,3-propanediamine chain in 1,3-pndta and the nature of metal counter cation on the structural modalities of carboxylate bridging groups in 1a − d were established by comparing with the analogous [M(1,3-pdta)]n− (1,3-pdta = 1,3-propanediamine-N,N,N’,N’-tetraacetate) and [M(1,3-pndta)]n− complexes (M = Co(III), Cr(III) and Ni(II)). Our studies have shown that the supramolecular association of the complexes is primarily governed by the size of the alkali or alkaline earth metal counter cation and its templating ability, while ethyl substituents, in most cases, prevent the formation of 3D polymeric frameworks.</p
Effect of GnRH-A Treatment at Weaning on Follicular Growth Monitored by Transrectal Ultrasonography in Sows
Therapeutic effect of GnRH-A (Buserelin 10 μg) treatment at weaning on follicular growth was monitored by transrectal ultrasonography in sows. After GnRH-A treatment, plasma concentrations of estradiol-17β and IGF-1 have increased, and the diameter of ovulatory follicles has enlarged compared to those in the controls. There was neither difference in the interval to the estrus after weaning nor litter size between GnRH-A treatment and controls. GnRH-A treatment stimulates the ovarian function after weaning and enhances conception rates in sows.離乳後の種雌豚の卵巣所見を経直腸超音波検査法により観察するとともに, 離乳時に酢酸プセレリン10μg (GnRH-A) を投与し, その後の卵胞発育に対する影響を検討した. その結果, GnRH-Aの投与群では, 発情時の血中E2濃度や投与後のIGF-1濃度が無処置群に比べ増加し, 排卵卵胞の直径が増加した. 一方, 離乳後発情回帰までの間隔や産子数には無処置群との問に違いはみられなかった. 今回, GnRH-Aの授与で離乳後の種雌豚の卵巣機能が賦活され, 高い受胎率が得られた.departmental bulletin pape
Effect of hormone mixture (PG600®) treatment at weaning on ovarian findings and reproductive performance in the first farrowing gilts
Hormone mixture (PG600® : combination of eCG 400IU and hCG 2001U) treatment at weaning increased service rates within seven days post-weaning, shortened interval to the first insemination and increased total farrowing rates in the first farrowing gilts (n=108) compared to the saline treated controls (n=184). Ovarian findings in PG600® treated gilts (n=11) and saline treated controls (n=12) were monitored with transrectal ultrasonography and that revealed the increments of follicular populations in a diameter of 5-7 mm, diameter of the largest follicle and number of ovulations. Plasma concentrations of estradiol and progesterone in luteal phase were increased in PG600® treated gilts.離乳時の初産豚108頭に, PG600®(eCG400IUとhCG200IUの合剤)を投与したところ, 無投与の対照群(n=181)に比べて離乳から7日以内の交配率が増加し, また初回交配までの日数の短縮, 並びに離乳した母豚に対する総分娩率の増加がみられた. 同様に初産豚にPG600®を投与した処置群(n=11)と生理食塩液を投与した対照群(n=12)について, 離乳後の卵巣所見を経直腸超音波検査法により観察したところ, 処置群で離乳後2~3日における直径5~7mmの卵胞数と最大卵胞直径の増加があり, 排卵数が増加した. また, 発情後の処置群では, 血中E2濃度と黄体期における血中P4濃度の上昇がみられた.departmental bulletin pape
Effect of CIDR Treatment on Ovarian Cyst Diagnosed with a Week Interval after First Examination in Japanese Black Cows
黒毛和種の繁殖雌牛459頭のうち、卵巣嚢種の発生率は9.4%(43/459頭)であり、うち再診した1週間以内の自然治癒率は16.3%(7/43頭)であった。これらに対し、CIDR処置とGnRH投与を行い、CIDR群では、処置開始から平均9.7日後に初回AIが可能となり、初回AI率は66%(19/29頭)、初回AI受胎率は79%(15/19頭)であった。GnRH群では、同様に、平均9.3日後に初回AIが可能で、初回AI率は71%(5/7頭)、初回AI受胎率は40%(2/5頭)であった。CIDR挿入中、嚢種卵胞の発育の抑制と新しい卵胞の発育がみられ、CIDR除去後、発情時にAIが実施でき、高い受胎率が得られた。CIDRの7日間挿入と除去時のPGF2α投与は、卵巣嚢種(卵胞嚢種、黄体嚢種)に対し、従来のGnRH投与よりも治療効果が高かった。Out of 459 cows surveyd, incidence of ovarian cyst was 9.4% (43/459) and natural recovery rate within a week was 16.3% (7/43) in Japanese black cows. For the treatment of cysts, Controlled Internal Drug Releasing device (CIDR) insertion and GnRH treatment were conducted. In CIDR group, first artificial insemination (AI) became practicable in 66% (12/29 cows) with an average of 9.7 days after CIDR removal, and conceptin rate following first AI was 79% (15/19). In GnRH group, likewise, first AI became practicable in 71% (5/7) after 9.3 days on an average, and conception rate following first AI was 40% (2/5). During CIDR insertion, suppression to the development of cystic follicles followed with the growth of new folliciles were observed, and after CIDR removal, AI was conducted at estrus and conception rate was obtained with higher level. Seven days insertion of CIDR and administration of PGF2α at the removal of CIDR showed greater effect on ovarian cyst (follicular cyst and luteal cyst) than administration of GnRH in a conventional way.departmental bulletin pape
