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Search Results: 1 - 10 of 25901 matches for " CAI Tao "
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Double-Lumen Needle Follicular Flushing System versus Single-Lumen Aspiration Needle in IVF/ICSI Patients with Poor Ovarian Response: A Meta-Analysis  [PDF]
Weijie Xing, Jianping Ou, Liuhong Cai, Xin Tao
Advances in Sexual Medicine (ASM) , 2017, DOI: 10.4236/asm.2017.74014
Abstract: Background: The present study performed a meta-analysis to comprehensively analyze existing randomized controlled trials (RCT) involving the use of double-lumen needle in patients with poor ovarian response to explore whether double-lumen needle was good for specific patients. Methods: The PubMed, EMBASE, Cochrane Library databases and two randomized controlled trials registration centers were thoroughly searched until April 2017. The clinical outcomes of IVF/ICSI cycles were compared between two groups with double-lumen needle and single-lumen needle. Results: Four RCT studies were included in this present meta-analysis. The oocytes yield was similar in two groups (OR 0.88, 95%CI 0.66 - 1.16; I2 = 4%). The procedure time with double-lumen needle was significantly longer than that with single-lumen needle (IV = 1.98, 95%CI 0.95 - 3.00; I2 = 86%). The fertilization rate with double-lumen needle was lower than that with single-lumen needle (OR 0.66, 95%CI 0.44 - 0.97; I2 = 0%). There was no significant difference of live birth rate in two groups (OR 0.76, 95%CI 0.32 - 1.76; I2 = 41%). Conclusion: Double-lumen needle could not benefit patients with a POR in terms of the number of oocytes retrieved, oocyte recovery rate, normal fertilization rate, clinical pregnancy rate, and live birth rate, compared with single-lumen needle.
Explore the Relationship between Insulin Resistance and PGC1α in PCOS Mice  [PDF]
Lei Chen, Xin Tao, Shuqi Ge, Lisi Cai, Xuanying Deng
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2018, DOI: 10.4236/ojemd.2018.83008
Abstract: Objective: To investigate the relationship between AMPKα, PGCα, insulin resistance and reproductive function in PCOS mice and to find out the molecular mechanisms and potential therapeutic molecular targets of pathogenesis of PCOS. Methods: The PCOS mouse model was established by DHEA administering with Balb/c mice. And after AMPK agonist AICAR and inhibitor Compound C intervention, Fasting blood glucose, fasting insulin and testosterone levels were observed. The HOMA index was calculated. The changes of PGCα expression in ovarian tissue were observed by western blot and immunohistochemistry to determine the relationship between insulin resistance and PGCα in PCOS mice. Results: Western blot and immunohistochemistry showed that PGC1α protein was expressed in the ovary of mice and the expression of PGC1α was negatively correlated with AMPKα in our study. Compared with the control group, the expression of PGC1α in the ovaries of the mice in PCOS group was significantly increased (P < 0.05), after intervention with AMPK agonist AICAR, the expression of PGC1α in PCOS + AICAR group was lower than that in PCOS group (P < 0.05). It is worth noting that the expression of PGC1α in PCOS mice exposed to AMPK inhibitor Compound C also decreased compared with PCOS group (P < 0.05). Conclusion: In ovarian tissue, the insulin resistance-related AMPKα pathway in PCOS mice may be negatively correlated with PGCα.
Analysis of Z-axis rigid of PCB CNC drilling machines
Liang-jin Cai,Chang-tao Cai
TELKOMNIKA : Indonesian Journal of Electrical Engineering , 2012, DOI: 10.11591/telkomnika.v10i6.1421
Abstract: This article for the printed circuit board (PCB) CNC drilling machine dynamic character and rigidity analysis of Z-axis, With ADAMS motion simulation of the Z-axis program, come to the bit offset of the rig during the drilling process in the X-axis and Y-axis direction, and then use the quadratic elements of the completed prototype data test, the measured data and simulation data compare validation to identify the impact of the motion parameters of accuracy of ultra-high-speed electric spindle drilling. Using ANSYS on the overall structure (in particular, the structure of Z-axis) to optimize the structure analysis, the optimal structural parameters. This article both specific theoretical analysis, but also the experimental verification, through theoretical analysis and experimental validation of the Z-axis structure play an important role to improve the ultra-high-speed electric spindle dynamic accuracy and rigidity in the drilling process.
Primary Lymphoma of the Seminal Vesicles Presented with Acute Renal Failure: PET-CT Findings  [PDF]
Baoyi Zhu, Yi Cai, Ruihan Chen, Chunwei Ye, Yiran Tao, Xingqiao Wen
Open Journal of Urology (OJU) , 2012, DOI: 10.4236/oju.2012.23024
Abstract: A 63-year-old male presented with lower abdominal pain and oliguria due to a large mass in the seminal vesicles. Positron emission tomography/CT (PET/CT) examination showed multiple lesions in the seminal Vesicles, parapharyngeal space, mediastinum and spermatic cord. The result of transrectal ultrasound (TRUS)-guided biopsy indicated a diffuse, large, B-cell lymphoma of the seminal vesicles. PET-CT and TRUS guided biopsy were very helpful to make the correct diagnosis of this unique case.
A Comparison between Laparoendoscopic Single-Site and Conventional Laparoscopic Renal Stone Removal Surgery: A Study of Application in Two Cases  [PDF]
Xingqiao Wen, Yi Cai, Yiran Tao, Baoyi Zhu, Chunwei Ye, Cheng Hu, Yu Wang
Open Journal of Urology (OJU) , 2012, DOI: 10.4236/oju.2012.23027
Abstract: Aim: To present our initial experience of applying laparoendoscopic single-site surgery (LESS) nephrolithotomy in the treatment of renal calculi. Methods: In August 2010 and April 2012, the LESS nephrolithotomy technique was applied to treat two patients with a renal calculus. One patient had a calculus measuring 5 × 3 cm, and the second patient's measured 3 × 3 cm. Both patients underwent general anesthesia. The operations were performed through a retroperitoneal approach with a single-port instrument inserted through the retroperitoneal incision. The standard laparoscopic retroperitoneal technique was performed, and the calculi were removed by incising the area of the thin renal cortex and the renal pelvis, respectively. The operating time, estimated blood loss, intraoperative complications, other complications, drainage time, and post-operative hospital stay were recorded. Results: Both procedures were completed successfully. No additional trocars were added. No conversion to standard laparoscopic or open surgery was needed. The operating times were 130 min and 120 min, and the estimated blood losses were 40 mL and 30 mL. There were no intraoperative complications. The wound drainage times were 3 d and 2 d, respectively and the post-operative hospital stays were 8 d and 7 d, respectively. There was no secondary bleeding or wound infection. Follow-up times were 2 years and 3 months, respectively. No incidence of hydronephrosis was recorded. Conclusions: LESS nephrolithotomy is safe and feasible for treating kidney calculi. It can be applied in patients with large renal calculi and regionally thin renal parenchyma.
Isolation and Identification of Ammonia Nitrogen Degradation Strains from Industrial Wastewater  [PDF]
Cai-Hong Yu, Ya Wang, Tao Guo, Wan-Xin Shen, Ming-Xin Gu
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.411101
Abstract: Nine strains of ammonia nitrogen degradation strains from C1 to C9 were isolated from industrial wastewater to study their degradation and conversion of ammonia nitrogen. The results showed that C2 strain with a high degradation activiity of ammonia nitrogen, and the ammonia nitrogen degradation rate of the activated C2 strain was 93% within 24 h when the initial concentration of ammonia nitrogen was 200 mg/L under the conditions of inoculation 10%, temperature 35?C, pH 7.0, rotation 200 r/min. And C2 was identified as Bacillus amyloliquefaciens.
A Detector Generating Algorithm Based on Interval Partition
Huifen Xia,Shiguang Ju,Tao Cai
International Journal of Distributed Sensor Networks , 2009, DOI: 10.1080/15501320802520605
Abstract: Based on the functions and some relevant theories of the biological immune system, an artificial immune system is established to solve the practical problems for computing systems. At present, the artificial immune system includes two major categories: the mechanism of non-self recognition and immune network, the most important of which is negative selection algorithm. The negative selection algorithm is proposed to simulate the formation and running mechanism of T cells for the immune system in 1994. In this algorithm, one of the key steps is the detector generation. Unfortunately, the current detector generating algorithms have detector generation inefficiencies, holes area, and redundant detector problems to some degree. In this paper, from the perspective of one dimension, a novel detector generating algorithm that is based on interval partition is proposed. At the beginning of this algorithm, we make the maximal interval be the initial detector; second, this detector should experience the training of self-tolerance. According to the matching rule, we let this detector match the given collection of selves; then we remove the points from the interval detector which matches the selves. At the same time, we divide the interval into two parts at this point and have the candidate detectors optimized by the corresponding interval collations and amalgamations. That is to say, the initial detector interval is divided recursively according to the spatial locations of selves. At last, we can get a set of excellent mature detectors, which can be used to protect the system security. To illustrate the advantage of this algorithm, we have given an example. From this example, we can declare that the algorithm improves the current detector generations and matching rules greatly. It also helps to remove the holes area and redundant detectors. Therefore, both the detector generation efficiency and the detecting efficiency are well improved. By the theoretical analysis and comparison, the system can detect a large number of non-self antigens only using a small quantity of detectors. Obviously, the algorithm achieves the high non-self identification system.
4-Methyl-N-[(5-nitrothiophen-2-yl)methylidene]aniline
Mingjian Cai,Xiuge Wang,Tao Sun
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811030297
Abstract: The title compound, C12H10N2O2S, is a Schiff base formed from p-toluidine and 5-nitrothiophene-2-carbaldehyde. The C=N bond adopts an E configuration. The benzene and thiophene rings form a dihedral angle of 9.2 (1)°.
Synthesis and Characterization of Novel Soluble Aromatic Polyesters with Pendant Cyano Groups
Yikai Yu,Mingzhong Cai,Tao Wang
Modern Applied Science , 2009, DOI: 10.5539/mas.v3n4p131
Abstract: 2, 6-Bis (4-carboxyphenoxy) benzonitrile was first synthesized by condensation of 2, 6-difluorobenzonitrile with p-Hydroxybenzoic acid in the presence of KOH and DMSO. And then the reaction of 2, 6-bis (4-carboxyphenoxy) benzonitrile with sulfur oxychloride yieded 2, 6-bis (4-chloroformylphenoxy) benzonitrile (BClPOBN). A series of novel soluble aromatic polyesters with pendant cyano groups were prepared by polycondensation of different aromatic diphenols and 2,6-bis (4-chloroformylphenoxy) benzonitrile (BClPOBN) using 1,2-dichoroethane (DCE) as solvent and pyridine as the absorbent of HCl. The resulting polymers were characterized by different physico-chemical techniques, such as FT-IR, Thermogravimetric analysis (TGA), Wide angle X-ray diffraction (WAXD), and so on. All the polymers had the proposed structure and were amorphous. Thermogravimetric studies showed that the thermal decomposition temperatures (Tds) at 5% weight loss of polymers were 391~406 ? in N2 atmosphere, indicating they had good thermal stabilities. The prepared polyesters exhibited good solubility in some common solvents, such as CHCl3, ethylene dichloride (DCE), CH2Cl2, tetrahydrofuran (THF) as well as aprotic polar organic solvents such as N-methyl pyrrolidone (NMP), N, N-dimethylacetamide (DMAC) and N, N-dimethylformamide (DMF), and so on.
Isolation and expression characterization of CBF2 in vitis amurensis with stress  [PDF]
Chang Dong, Jianmin Tao, Meng Zhang, Zhiying Yu, Bailin Wang, Binhua Cai, Zhen Zhang, Yang Qin
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.49062
Abstract:

The transcription factor VaCBF2, which interacts with C-repeat/DRE and its promoter, was isolated from Vitis amurensis. The VaCBF2 amino acid sequence contained a conserved AP2 domain of 56 amino acids and a potential nuclear localization sequence. The sequence of VaCBF2 showed a high level of homology with other CBF2 family members. Phylogenetic analysis showed that the amino acid sequences may be CBF2 proteins with evolutionary relationship. Quantitative reverse-transcription polymerase chain reaction analysis indicated that the expression of VaCBF2 gene in tissues (roots, stems, leaves, and petioles) was induced by low temperature, high salinity, and application of abscisic acid and salicylic acid in a time-dependent manner but to different extents in the cold-hardy V. amurensis and the less cold-hardy Vitis vinifera. The presence of cis-elements such as MYC and ABRE in VaCBF2 promoter further confirmed that this promoter was a component of the CBF transduction pathway involved in plant response to multiple stresses.

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