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Journal articles on the topic 'Tests en cyclage'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Jankowska, Anna, and Jerzy B. Warchol. "Ca2+-modulated membrane guanylate cyclase in the testes." Molecular and Cellular Biochemistry 334, no. 1-2 (2009): 169–79. http://dx.doi.org/10.1007/s11010-009-0329-5.

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2

S. Ali Ahmed, S. Ali Ahmed, Syed Jahangir Badashah, and A. Farooq Hussain. "Logic Test of Single Cycle Access Structure." International Journal of Scientific Research 2, no. 11 (2012): 203–5. http://dx.doi.org/10.15373/22778179/nov2013/65.

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3

Afanas’ev, Yu O., G. S. Kozlova, A. R. Bogomolov, and V. S. Medyanik. "Tests of a cyclone reactor for firing high-ash fuel." Thermal Engineering 58, no. 12 (2011): 1022–27. http://dx.doi.org/10.1134/s0040601511120020.

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4

Pascolini, Rita, Antonio Spreca, Sergio Lorvik, Oliviero Fagioli, and Giorgio Fanó. "Ultracytochemical and biochemical evidence for guanylate cyclase in guinea pig testis." Anatomical Record 212, no. 3 (1985): 277–81. http://dx.doi.org/10.1002/ar.1092120309.

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5

Berman, M. I., Madhu B. Anand-Srivastava, and M. R. Sairam. "Characterization of gonadotropin-sensitive adenylate cyclase activity in human testis: uncoupling of the receptor-cyclase complex by specific hormonal antagonist." Molecular and Cellular Endocrinology 42, no. 1 (1985): 49–57. http://dx.doi.org/10.1016/0303-7207(85)90006-1.

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6

Smith, A. J., T. Jahnsen, and V. Hansson. "Membrane-Bound Adenylate Cyclase Activity in the Testis of the Blue Fox." Archives of Andrology 14, no. 1 (1985): 35–43. http://dx.doi.org/10.3109/01485018508987276.

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7

Shpakov, A. O., K. V. Derkach, D. V. Dar’in, and P. S. Lobanov. "Activation of adenylyl cyclase by thienopyrimidine derivatives in rat testes and ovaries." Cell and Tissue Biology 8, no. 5 (2014): 400–406. http://dx.doi.org/10.1134/s1990519x14050071.

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8

KUHN, Michaela, Chi Kin Domingos NG, Yueh-Hsing SU, et al. "Identification of an orphan guanylate cyclase receptor selectively expressed in mouse testis." Biochemical Journal 379, no. 2 (2004): 385–93. http://dx.doi.org/10.1042/bj20031624.

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We have identified a novel membrane form of guanylate cyclase (GC) from a mouse testis cDNA library and termed it mGC-G (mouse GC-G) based on its high sequence homology to rat GC-G. It encodes a potential type I transmembrane receptor, with the characteristic domain structure common to all members of the family of membrane GCs, including an extracellular, putative ligand-binding domain, a single membrane-spanning segment and cytoplasmic protein kinase-like and cyclase catalytic domains. Real-time quantitative reverse transcriptase–PCR and Northern-blot analyses showed that mGC-G is highly and selectively expressed in mouse testis. Phylogenetic analysis based on the extracellular protein sequence revealed that mGC-G is closely related to members of the subfamily of natriuretic peptide receptor GCs. When overexpressed in HEK-293T cells (human embryonic kidney 293T cells) or COS-7 cells, mGC-G manifests as a membrane-bound glycoprotein, which can form either homomeric or heteromeric complexes with the natriuretic peptide receptor GC-A. It exhibits marked cGMP-generating GC activity; however, notably, all ligands known to activate other receptor GCs failed to stimulate enzymic activity. The unique testis-enriched expression of mGC-G, which is completely different from the broader tissue distribution of rat GC-G, suggests the existence of as-yet-unidentified ligands and unappreciated species-specific physiological functions mediated through mGC-G/cGMP signalling in the testis.

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9

Wade, M. A., S. D. Roman, R. C. Jones, and R. J. Aitken. "Adenylyl cyclase isoforms in rat testis and spermatozoa from the cauda epididymidis." Cell and Tissue Research 314, no. 3 (2003): 411–19. http://dx.doi.org/10.1007/s00441-003-0801-6.

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10

Errico, R., R. Bampi, M. Riondato, A. Chimenz, O. Ferrando, and F. Foppiano. "A quality control protocol for routine tests on the phosphor imager Cyclone Plus." Physica Medica 32 (February 2016): 105. http://dx.doi.org/10.1016/j.ejmp.2016.01.363.

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11

Prisco, Marina, Luigi Rosati, Eliana Morgillo, et al. "Pituitary adenylate cyclase-activating peptide (PACAP) and its receptors in Mus musculus testis." General and Comparative Endocrinology 286 (January 2020): 113297. http://dx.doi.org/10.1016/j.ygcen.2019.113297.

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12

KOH, Phil-Ok, Chung-Kil WON, and Jae-Hyeon HO. "Ethanol Decreases the Expression of Pituitary Adenylate Cyclase Activating Polypeptide in Rat Testes." Journal of Veterinary Medical Science 68, no. 6 (2006): 635–37. http://dx.doi.org/10.1292/jvms.68.635.

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13

Onoda, James M., Theodor Braun, and Simeon M. Wrenn. "Characterization of the purine-reactive site of the rat testis cytosolic adenylate cyclase." Biochemical Pharmacology 36, no. 12 (1987): 1907–12. http://dx.doi.org/10.1016/0006-2952(87)90487-4.

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14

Piñeros, Miguel F., Elizabeth A. Ritchie, and J. Scott Tyo. "Estimating Tropical Cyclone Intensity from Infrared Image Data." Weather and Forecasting 26, no. 5 (2011): 690–98. http://dx.doi.org/10.1175/waf-d-10-05062.1.

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Abstract This paper describes results from a near-real-time objective technique for estimating the intensity of tropical cyclones from satellite infrared imagery in the North Atlantic Ocean basin. The technique quantifies the level of organization or axisymmetry of the infrared cloud signature of a tropical cyclone as an indirect measurement of its maximum wind speed. The final maximum wind speed calculated by the technique is an independent estimate of tropical cyclone intensity. Seventy-eight tropical cyclones from the 2004–09 seasons are used both to train and to test independently the intensity estimation technique. Two independent tests are performed to test the ability of the technique to estimate tropical cyclone intensity accurately. The best results from these tests have a root-mean-square intensity error of between 13 and 15 kt (where 1 kt ≈ 0.5 m s−1) for the two test sets.

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15

Smith, A. J., T. Jahnsen, and V. Hansson. "Physicochemical Properties of the Soluble Mn2+-Dependent Adenylate Cyclase in the Blue Fox Testis." Archives of Andrology 15, no. 1 (1985): 53–57. http://dx.doi.org/10.3109/01485018508986892.

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16

Longwic, Rafał, Grzegorz Litak, and Asok K. Sen. "Recurrence Plots for Diesel Engine Variability Tests." Zeitschrift für Naturforschung A 64, no. 1-2 (2009): 96–102. http://dx.doi.org/10.1515/zna-2009-1-214.

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Cycle-to-cycle variations of maximum pressure in a diesel engine are studied by using the methods of recurrence plots and recurrence quantification analysis. The pressure variations are found to exhibit strong periodicities in low frequency bands and intermittent oscillations at higher frequencies. The results are confirmed by wavelet analysis.

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17

Middelhaufe, Sabine, Martina Leipelt, Lonny R. Levin, Jochen Buck, and Clemens Steegborn. "Identification of a haem domain in human soluble adenylate cyclase." Bioscience Reports 32, no. 5 (2012): 491–99. http://dx.doi.org/10.1042/bsr20120051.

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The second messengers cAMP and cGMP mediate a multitude of physiological processes. In mammals, these cyclic nucleotides are formed by related Class III nucleotidyl cyclases, and both ACs (adenylate cyclases) and GCs (guanylate cyclases) comprise transmembrane receptors as well as soluble isoforms. Whereas sGC (soluble GC) has a well-characterized regulatory HD (haem domain) that acts as a receptor for the activator NO (nitric oxide), very little is known about the regulatory domains of the ubiquitous signalling enzyme sAC (soluble AC). In the present study, we identify a unique type of HD as a regulatory domain in sAC. The sAC-HD (sAC haem domain) forms a larger oligomer and binds, non-covalently, one haem cofactor per monomer. Spectral analyses and mutagenesis reveal a 6-fold co-ordinated haem iron atom, probably with non-typical axial ligands, which can bind both NO and CO (carbon monoxide). Splice variants of sAC comprising this domain are expressed in testis and skeletal muscle, and the HD displays an activating effect on the sAC catalytic core. Our results reveal a novel mechanism for regulation of cAMP signalling and suggest a need for reanalysis of previous studies on mechanisms of haem ligand effects on cyclic nucleotide signalling, particularly in testis and skeletal muscle.

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18

Lindsey, Laramie L., Roy N. Platt, Caleb D. Phillips, David A. Ray, and Robert D. Bradley. "Differential Expression in Testis and Liver Transcriptomes from Four Species of Peromyscus (Rodentia: Cricetidae)." Genome Biology and Evolution 12, no. 1 (2020): 3698–709. http://dx.doi.org/10.1093/gbe/evz280.

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Abstract The genus Peromyscus represents a rapidly diverged clade of Cricetid rodents that contains multiple cryptic species and has a propensity for morphologic conservation across its members. The unresolved relationships in previously proposed phylogenies reflect a suspected rapid adaptive radiation. To identify functional groups of genes that may be important in reproductive isolation in a reoccurring fashion across the Peromyscus phylogeny, liver and testis transcriptomes from four species (P. attwateri, P. boylii, P. leucopus, and P. maniculatus) were generated and differential expression (DE) tests were conducted. Taxa were selected to represent members diverged from a common ancestor: P. attwateri + P. boylii (clade A), and P. leucopus + P. maniculatus (clade B). Comparison of clades (A vs. B) suggested that 252 transcripts had significant DE in the liver data set, whereas significant DE was identified for 657 transcripts in the testis data set. Further, 45 genes had DE isoforms in the 657 testis transcripts and most of these functioned in major reproductive roles such as acrosome assembly, spermatogenesis, and cell cycle processes (meiosis). DE transcripts in the liver mapped to more broad gene ontology terms (metabolic processes, catabolic processes, response to chemical, and regulatory processes), and DE transcripts in the testis mapped to gene ontology terms associated with reproductive processes, such as meiosis, sperm motility, acrosome assembly, and sperm–egg fusion. These results suggest that a suite of genes that conduct similar functions in the testes may be responsible for the adaptive radiation events and potential reoccurring speciation of Peromyscus in terms of reproduction through varying expression levels.

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19

Braun, T. "Inhibition of the Soluble Form of Testis Adenylate Cyclase by Catechol Estrogens and Other Catechols." Experimental Biology and Medicine 194, no. 1 (1990): 58–63. http://dx.doi.org/10.3181/00379727-194-43055.

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20

Jankowska, A., B. Burczynska, T. Duda, J. B. Warchol, and R. K. Sharma. "Calcium-Modulated Rod Outer Segment Membrane Guanylate Cyclase Type 1 Transduction Machinery in the Testes." Journal of Andrology 28, no. 1 (2006): 50–58. http://dx.doi.org/10.2164/jandrol.106.000182.

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21

Li, Min, Kazuhisa Nakayama, Yujin Shuto, Aniko Somogyvari-Vigh, and Akira Arimura. "Testis-Specific Prohormone Convertase PC4 Processes the Precursor of Pituitary Adenylate Cyclase-activating Polypeptide (PACAP)." Peptides 19, no. 2 (1998): 259–68. http://dx.doi.org/10.1016/s0196-9781(97)00293-3.

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22

Marala, R. B., and R. K. Sharma. "Characterization of atrial-natriuretic-factor-receptor-coupled membrane guanylate cyclase from rat and mouse testes." Biochemical Journal 251, no. 1 (1988): 301–4. http://dx.doi.org/10.1042/bj2510301.

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Studies with isolated adrenal cells and mouse testicular cells have supported a mediatory role of cyclic GMP in ANF (atrial natriuretic factor)-dependent steroidogenic signal transduction. This concept has been strengthened by the purification and biochemical characterization of a 180 kDa protein, which appears to contain both ANF receptor and guanylate cyclase activities, from rat adrenocortical carcinoma cells. Utilizing the antibody to 180 kDa membrane guanylate cyclase as a probe, we now demonstrate the direct presence of ANF-dependent membrane guanylate cyclase in mouse and rat testes. The antibody blocks the ANF-dependent guanylate cyclase activity in isolated membranes, and Western-blot analysis of the partially purified enzyme reveals a single 180 kDa protein. The presence of this enzyme in mouse and rat testes, together with its previous demonstration in rat adrenocortical carcinoma, represent an important potential biochemical role for this enzyme in receptor-mediated steroidogenic signal transduction.

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23

Pascolini, Rita, Giorgio Fanò, and Sergio Lorvik. "Guanylate cyclase in the testis ofEsox luciusL. at time of spermiation: Histochemical and biochemical evidence." Bolletino di zoologia 53, no. 4 (1986): 373–76. http://dx.doi.org/10.1080/11250008609355525.

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24

Huang, Yen-Hua, Chih-Chun Wei, Yueh-Hsing Su, et al. "Localization and Characterization of an Orphan Receptor, Guanylyl Cyclase-G, in Mouse Testis and Sperm." Endocrinology 147, no. 10 (2006): 4792–800. http://dx.doi.org/10.1210/en.2005-1476.

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We recently identified a novel testis-enriched receptor guanylyl cyclase (GC) in the mouse, designated mGC-G. To further investigate its protein expression and function, we generated a neutralizing antibody specifically against the extracellular domain of this receptor. RT-PCR and immunohistochemical analyses show that mGC-G is predominantly expressed from round spermatids to spermatozoa in mouse testis at both the mRNA and protein levels. Flow cytometry and confocal immunofluorescence reveal that mGC-G is a cell surface protein restricted to the plasma membrane overlying the acrosome and midpiece of the flagellum in mature sperm. Interestingly, Western blot analysis demonstrates that testicular mGC-G is approximately 180 kDa but is subject to limited proteolysis during epididymal sperm transport, resulting in a smaller fragment tethered on the mature sperm surface. On Fluo-3 cytometrical analysis and computer-assisted sperm assay, we found that serum albumin-induced elevation of sperm intracellular Ca2+ concentration, protein tyrosine phosphorylation, and progressive motility associated with capacitation are markedly reduced by preincubation of the anti-mGC-G neutralizing antibody. Together, these results indicate that mGC-G is proteolytically modified in mature sperm membrane and suggest that mGC-G-mediated signaling may play a critical role in gamete/reproductive biology.

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25

Shuto, Yujin, Anikó Somogyvári-Vigh, Seiji Shioda, Haruo Onda, and Akira Arimura. "Effect of hypophysectomy on pituitary adenylate cyclase-activating polypeptide gene expression in the rat testis." Peptides 16, no. 6 (1995): 1039–44. http://dx.doi.org/10.1016/0196-9781(95)00080-4.

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26

SALTARELLI, Danièle, M. Paloma DE LA LLOSA-HERMIER, and C. HERMIER. "Properties of an LH-stimulable adenylate cyclase in plasma membranes of interstitial cells from rat testis." Reproduction Nutrition Développement 26, no. 2A (1986): 487–501. http://dx.doi.org/10.1051/rnd:19860309.

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27

HABBERFIELD, ALAN D., CLIVE J. DIX, and BRIAN A. COOKE. "Lutropin-induced desensitization of adenylate cyclase, internalization and recycling of lutropin receptors in testis Leydig cells." Biochemical Society Transactions 13, no. 6 (1985): 1129–30. http://dx.doi.org/10.1042/bst0131129.

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28

Shpakov, A. O., D. V. Dar’in, K. V. Derkach, and P. S. Lobanov. "The stimulating influence of thienopyrimidine compounds on the adenylyl cyclase signaling systems in the rat testes." Doklady Biochemistry and Biophysics 456, no. 1 (2014): 104–7. http://dx.doi.org/10.1134/s1607672914030065.

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29

Shpakov, A. O., K. V. Derkach, O. V. Chistyakova, and V. M. Bondareva. "Functional state of adenylyl cyclase signaling system in rat testis and ovary under conditions of fasting." Journal of Evolutionary Biochemistry and Physiology 47, no. 1 (2011): 43–52. http://dx.doi.org/10.1134/s0022093011010063.

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30

El-Hefnawy, Talal, Sergey Ioffe, and Martin Dym. "Expression of the Leptin Receptor during Germ Cell Development in the Mouse Testis*." Endocrinology 141, no. 7 (2000): 2624–30. http://dx.doi.org/10.1210/endo.141.7.7542.

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Leptin, a recently identified hormonal product of the ob gene, is known to regulate appetite, body metabolism, and reproductive functions. We investigated the expression of the leptin receptor (Ob-R) in testes from different age groups. The messenger RNA for Ob-R was found in testes from all age groups using RT-PCR. Using immunohistochemistry, we observed age- and stage-dependent distribution of the Ob-R in mouse testis. In testis of 5-day-old mice, its expression was mainly in type A spermatogonia. In the 20- and 30-day-old testis, Ob-R expression was in the spermatocytes; in the adult testis, it was specific to spermatocytes in stages IX and X of the cycle of the seminiferous epithelium. Five main immunoreactive proteins were detected using Western blot (220, 120, 90, 66, and 46 kDa). The 120-kDa protein was evident only in 20-day-old and older testes, whereas the 90-kDa band was present only in the 5- and 10-day-old testis. Leptin treatment induced phosphorylation of signal transducer and activator of transcription-3 in cultured seminiferous tubules from adult and 5-day-old testes. Our results show for the first time age- and stage-specific localization of a functional Ob-R in testicular germ cells. We hypothesize a direct role for leptin, through phosphorylation of signal transducer and activator of transcription-3, in proliferation and differentiation of germ cells, which may partially explain the infertility observed in leptin-deficient mice.

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31

O'Doherty, T., D. J. Morgan, and N. Syred. "A Multi Fuelled Cyclone Combustor." Energy & Environment 3, no. 4 (1992): 401–16. http://dx.doi.org/10.1177/0958305x9200300405.

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The paper outlines a series of tests carried out on a prototype 1.5 MW vertical cyclone combustor with integral ash removal which removes in excess of 80% of the ash. For high calorific value fuels such as coal the system is run fuel rich to avoid slagging. The low calorific value exhaust gases are passed via a transfer duct into an inverted swirl burner/furnace arrangement where final burnout of the gasified products occur. The sytem, designed to utilise a wide range of solid fuels was evaluated for a range of biomass materials and coal. The coal work investigated the effects of crushed (dm ≃ 250 μm) and pulverised (dm ≃ 70–80 μm) bituminous coals on system performance whilst biomass trials investigated the effects of chopped straw, chicken litter, shredded paper and refuse derived fuels. The fuel and air were premixed and fired tangentially in all cases into the primary combustor. The combustor was operated over a range of mixture ratios (φ) from fuel rich (φ = 0.5) to fuel lean (φ = 2.0) with temperatures in the order of 1250°C, hence operated in a non-slagging mode. The whole system was operated with a minimum of secondary air, required only to burn the gasified products from the primary chamber. The trials included monitoring of exhaust gases for a range of emissions. In addition, isokinetic sampling of the exhaust gases was carried out to determine particulate emission levels. Results show that best fuel burnout is achieved with biomass material levels better than 99% being achieved. Satisfactory performance was achieved with coal, (ash retention emissions) with fuel burnout in the order of 80%. Ash retention values for the biomass materials was in excess of 80% up to 98%. Coal ash retention levels were lower when analysed on a mass balance basis but of the same order when considering particulate emissions.

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32

Koper, Artur. "Tests of Selected Properties of Aggregates on Ceramic Wastes." Key Engineering Materials 677 (January 2016): 246–53. http://dx.doi.org/10.4028/www.scientific.net/kem.677.246.

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The article analysed the results of comparative sampling of selected properties of concretes with addition of aggregates from sanitary ceramic wastes. For the need of the analyses there were created concretes of various w/c coefficients (0,35, 0,50, 0,75) and with diverse percentage participation of ceramic wastes aggregates (exchange of 50% and 100% coarse aggregates into ceramic). The range of performed samples and analyses included sampling of mechanical and physical properties of concretes and the aggregates used. What was under analysis: for aggregates – sampling of bulk density, absorbency, resistance to crushing; for concretes from ceramic wastes – sampling of density, absorbency, compressive strength, tensile strength and compressive strength after roasting. Roasting was performed according to defined temperature cycles: cycle I - from 0 to 150OC (vaporisation of free water), cycle II - from 150 to 550OC (separation of chemically combined water), cycle III - beyond 550OC (change of hydraulic combination into ceramic, sintering).

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33

Srokosz, Piotr, Ireneusz Dyka, and Marcin Bujko. "Interpretation of shear modulus degradation tests." Studia Geotechnica et Mechanica 40, no. 2 (2018): 125–32. http://dx.doi.org/10.2478/sgem-2018-0015.

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AbstractThe problem is a continuation of the research conducted at the University of Warmia and Mazury in Olsztyn, Institute of Building Engineering. It concerns the development of methods for the interpretation of the shear modulus measurements based on the tests conducted on a torsional shear (TS) apparatus. The issue has significant importance in determining the deformation parameters, essential to perform numerical simulations of the interaction between a geotechnical structure and the subsoil. The purpose of this study was to conduct a comparative analysis of the various methods of interpretation of research results based on direct and reverse analysis, as well as automated classification of the first cycle of the relationship between the shear stress and the shear strain components obtained from the TS test. The methodology for verification of the presented interpretative methods consists in carrying out a series of laboratory tests on non-cohesive and cohesive samples of different granulation and state parameters. The course of the research includes the following steps: elaboration of the granulometric composition of several samples of soil, determination of soil index properties and execution of TS tests. Various methods of interpretation of obtained results were taken into account, in addition to conducting a comparative analysis. The study used a non-standard interpretation approach consisting of analysing one-fourth of the hysteresis loop of the first load–unload cycle of the tested samples. The obtained results confirmed the hypothesis that it is possible to estimate the degradation value of the shear modulus based on a part of the TS test results carried out under quasi-monotonic load conditions. The proposed methods of interpreting test results have confirmed their high usefulness, which is devoid of the uncertainty associated with standardised resonant column/TS testing.

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34

Hutchinson, T. H., H. Yokota, S. Hagino, and K. Ozato. "Development of fish tests for endocrine disruptors." Pure and Applied Chemistry 75, no. 11-12 (2003): 2343–53. http://dx.doi.org/10.1351/pac200375112343.

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International concern over endocrine active substances (EASs) has led to intensive research programmes to establish fish reproductive and developmental toxicity tests for use in environmental (ecological) risk assessment. This chapter gives an overview of key themes of in vivo ecotoxicology research, including fish screening assays, partial life-cycle tests (the draft OECD fish reproduction test and the new fish development test) and fish full life-cycle tests. In the context of the OECD test guidelines program, fish species of primary interest include fathead minnow, medaka and zebrafish, while guppy, rainbow trout, sheepshead minnow, and three-spined stickleback are also of scientific importance. Critical factors for evaluation include baseline reproductive biology and definition of EAS sensitive life-stages. For regulatory applications, a critical review of existing fish EAS data suggests that apical adverse effect endpoints, namely development, growth and reproduction (e.g., fecundity, fertilization rates, and hatching success) should be used to derive predicted no-effect concentrations (PNECs) for the environmental risk assessment of EASs. In support of these apical adverse effect endpoints, biomarker responses (e.g., vitellogenin, gonadal-somatic index, and gonad histopathology) should be used to provide mechanistic data, compare species (e.g., cyprinids vs. salmonids), and allow extrapolation between laboratory and field studies.

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35

Ramm, Steven A., and Paula Stockley. "Sperm competition and sperm length influence the rate of mammalian spermatogenesis." Biology Letters 6, no. 2 (2009): 219–21. http://dx.doi.org/10.1098/rsbl.2009.0635.

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Sperm competition typically favours an increased investment in testes, because larger testes can produce more sperm to provide a numerical advantage in competition with rival ejaculates. However, interspecific variation in testis size cannot be equated directly with variation in sperm production rate—which is the trait ultimately selected under sperm competition—because there are also differences between species in the proportion of spermatogenic tissue contained within the testis and in the time it takes to produce each sperm. Focusing on the latter source of variation, we provide phylogenetically controlled evidence for mammals that species with relatively large testes (and hence a high level of sperm competition) have a shorter duration of the cycle of the seminiferous epithelium and consequently a faster rate of spermatogenesis, enabling males to produce more sperm per unit testis per unit time. Moreover, we identify an independent negative relationship between sperm length and the rate of spermatogenesis, such that spermatogenesis takes longer in species with longer sperm. We conclude that sperm competition selects for both larger testes and a faster rate of spermatogenesis to increase overall sperm production, and that an evolutionary trade-off between sperm size and numbers may be mediated via constraints on the rate of spermatogenesis imposed by selection for longer sperm.

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36

Sehgal, Sanjay, and Meenakshi Gupta. "Tests of Technical Analysis in India." Vision: The Journal of Business Perspective 11, no. 3 (2007): 11–23. http://dx.doi.org/10.1177/097226290701100303.

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The study evaluates the economic feasibility of technical analysis in the Indian stock market. It discusses that technical indicators do not outperform Simple Buy and Hold strategy on net return basis for individual stocks. Technical indicators seem to do better during market upturns compared to market downturns. However, technical based trading strategies are not feasible vis-à-vis passive strategy irrespective of market cycle conditions. Technical indicators also do not provide economically significant profit for industry as well as economy based data. Combining fundamentals with technical information, we find, that technical indicators are more profitable for small stocks compared to big stocks and for high value stocks compared to low value stocks. However, the economic feasibility of fundamentals' based technical strategies is still questionable. Our results seem to confirm with the efficient market hypothesis.

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37

Arum, Ida Anjar. "UPAYA MENINGKATKAN MINAT DAN HASIL BELAJAR MATEMATIKA DENGAN MODEL CONTEXTUAL TEACHING AND LEARNING." UNION: Jurnal Ilmiah Pendidikan Matematika 5, no. 1 (2017): 49. http://dx.doi.org/10.30738/.v5i1.932.

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The purpose of the study are (1) to describe the learning process by using Contextual Teaching and Learning (CTL) and (2) to increase students’ interest and learning of math achievement for class X / AK2 at SMK Muhammadiyah Wonosari. The type of research was a Classroom Action Research (CAR) which was conducted in two cycles. The subjects of the study were the students of class X / AK2. It was consisted 29 students. The object of the study was students’ interest and the results of math achievement. The data collection techniques were conducted by questionnaires and tests. The average percentage of students’ interest in the results of the questionnaire pre-cycle of 69.30%, in the cycle 1 increased 73.06% with the average percentage of 67.04%. In the cycle 2 increased 84.69% with the average percentage of 78.88%. At the beginning of the test's ability to use the average value of the daily tests of students in the second semester were 53.45 with the percentage of 17.24% KKM achievement. In the first cycle an average of 19.31 points increase in the amount of 72.76 with a percentage of 51.72%. In the cycle 2 increased 6.55 percentage points to 79.31 with 62.07% from minimum completeness criteria. Based on the result, the researcher conclude that Contextual model in Teaching and Learning (CTL) could apply in the teaching and learning process in math lesson.

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Goel, H. S., and Satish Chand. "A Fatigue Crack Growth Model for Single Overload Tests." Journal of Engineering Materials and Technology 116, no. 2 (1994): 168–72. http://dx.doi.org/10.1115/1.2904268.

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Crack growth rate experiments are conducted by applying an intermediate single overload cycle in constant amplitude load (CAL) tests. For a particular overload ratio, three to four tests are conducted by applying the overload cycle at different crack lengths. The loads are selected in such a way that for a given overload ratio, the size of the overload and CAL monotonic plastic zones are the same at each crack length. A functional form for the crack growth during the retardation was developed that accurately describes all the tests. For comparison, the corresponding CA-load tests are also conducted separately. Finally, a crack growth rate model is developed.

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Loir, Maurice. "Adenosine receptor-adenylate cyclase system in the trout testis: Involvement in the regulation of germ cell proliferation." Molecular Reproduction and Development 58, no. 3 (2001): 307–17. http://dx.doi.org/10.1002/1098-2795(200103)58:3<307::aid-mrd9>3.0.co;2-f.

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Stenger, B. A. A., S. A. A. Al-Kendi, A. F. F. Al-Ameri, and A. B. B. Al-Katheeri. "Interpretation of Immiscible WAG Repeat Pressure-Falloff Tests." SPE Reservoir Evaluation & Engineering 14, no. 06 (2011): 687–701. http://dx.doi.org/10.2118/137062-pa.

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Summary This paper reviewed the interpretation of repeat pressure-falloff (PFO) tests acquired in two vertical pattern injectors operating in a carbonate reservoir undergoing full-field development. Enhanced vertical-sweep conformance through phase mobility control in the presence of strong reservoir heterogeneity was the major expected benefit from an immiscible water-alternating-gas (WAG) displacement mechanism. PFO tests were carried out during the monophasic injection phase to determine well injectivity and reservoir properties, and were subsequently acquired at the end of each 3-month injection cycle. Analytical falloff-test interpretation relied on the use of the two zone radial composite model. Multiple falloff-test interpretations indicated that the two pattern vertical injectors behaved differently even though both had been fractured. The difference in behavior was linked to different perforated intervals and reservoir properties. Gas- and water-injection rates were showing differences between both pattern injectors as a consequence. Injected gas banks had a small inner radius and were almost undetectable at the end of the subsequent water cycle. Changes in the pressure-derivative slope at the end of the subsequent water-injection cycle indicated most likely the creation of an effective mixing zone of injected gas and water in the reservoir. Numerical finite-volume simulation was required to account for potential injected-fluid segregation and the heterogeneous multilayered nature of the reservoir. Repeat saturation logs acquired in observation wells monitored the saturation distribution away from the injection wells. Fluid saturations derived from the simulation model were showing a good agreement with the analytical results in general, although the need to account for gas trapping was confirmed. Eight planned development WAG injectors were repositioned as a consequence of WAG 1 and WAG 2 pattern performance.

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Ikeda, K., T. Sakurada, Y. Sasaki, T. Takasaka, and Y. Furukawa. "Clinical investigation of olfactory and auditory function in type I pseudohypoparathyroidism: participation of adenylate cyclase system." Journal of Laryngology & Otology 102, no. 12 (1988): 1111–14. http://dx.doi.org/10.1017/s0022215100107467.

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AbstractOlfactory and auditory function was examined in five patient with type I pseudohyppoarathyroidism; in two patient the activity of stimulatory guanine nucleotide-binding protein was examined and found to have low values. The olfactory tests were performed by T & T olfactometer and intravenous injection of thiamine propyl disulphide. The four patients receiving olfactory test showed a disturbance in recoginzation of the odorants. All five patients had normal hearing at frequencies with the normal range. An adenylate cyclase system is thought to play an important role in olfactory transduction, whereas cochlear function may be unaffected by this system in the normal state.

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ANDRYCH-ZALEWSKA, Monika, Zdzisław CHŁOPEK, Jerzy MERKISZ, and Jacek PIELECHA. "Static internal combustion engine operating states in vehicle driving tests." Combustion Engines 177, no. 2 (2019): 50–54. http://dx.doi.org/10.19206/ce-2019-209.

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The article presents the compression-ignition engine test results of static operating states in driving tests: NEDC (New European Driving Cycle), RDE (Real Driving Emissions) and the Malta custom test cycle, developed at the Poznan University of Technology. The NEDC and Malta tests were carried out as drive cycle simulations on the engine test bench, the RDE test was carried out in the real driving conditions. The engine operating states are described by the physical quantities of speed and torque. For each of the tests, zero- -dimensional characteristics of the values describing the engine operation states were determined, including: mean value and average standard deviation and coefficient of variation. Histograms of quantities describing the engines operating states for considered tests and driving conditions were also determined. A large diversity of zero-dimensional characteristics of the quantities describing the engines operating states for the considered driving tests and driving conditions was found.

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Lie, Pearl P. Y., Weiliang Xia, Claire Q. F. Wang, et al. "Dynamin II interacts with the cadherin- and occludin-based protein complexes at the blood–testis barrier in adult rat testes." Journal of Endocrinology 191, no. 3 (2006): 571–86. http://dx.doi.org/10.1677/joe.1.06996.

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In adult rat testes, blood–testis barrier (BTB) restructuring facilitates the migration of preleptotene spermatocytes from the basal to the adluminal compartment that occurs at stage VIII of the epithelial cycle. Structural proteins at the BTB must utilize an efficient mechanism (e.g. endocytosis) to facilitate its transient ‘opening’. Dynamin II, a large GTPase known to be involved in endocytosis, was shown to be a product of Sertoli and germ cells in the testis. It was also localized to the BTB, as well as the apical ectoplasmic specialization (apical ES), during virtually all stages of the epithelial cycle. By co-immunoprecipitation, dynamin II was shown to associate with occludin, N-cadherin, zonula occludens-1 (ZO-1), β-catenin, junctional adhesion molecule-A, and p130Cas, but not nectin-3. An in vivo model in rats previously characterized for studying adherens junction (AJ) dynamics in the testes by adjudin (formerly called AF-2364, 1-(2,4-dichlorobenzyl)-1H-indazole-3-car-hohydrizide) treatment was used in our studies. At the time of germ cell loss from the seminiferous epithelium as a result of adjudin-induced AJ restructuring without disrupting the BTB integrity, a significant decline in the steady-state dynamin II protein level was detected. This change was associated with a concomitant increase in the levels of two protein complexes at the BTB, namely occludin/ZO-1 and N-cadherin/β-catenin. Interestingly, these changes were also accompanied by a significant increase in the structural interaction of dynamin II with β-catenin and ZO-1. β-Catenin and ZO-1 are adaptors that structurally link the cadherin- and occludin-based protein complexes together at the BTB in an ‘engaged’state to reinforce the barrier function in normal testes. However, β-catenin and ZO-1 were ‘disengaged’ from each other but bound to dynamin II during adjudin-induced AJ restructuring in the testis. The data reported herein suggest that dynamin II may assist the ‘disengagement’ of β-catenin from ZO-1 during BTB restructuring. Thus, this may permit the occludin/ZO-1 complexes to maintain the BTB integrity when the cadherin/catenin complexes are dissociated to facilitate germ cell movement.

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Wang, En Liang, Bin Zhang, and Jun De Chang. "Freeze-Thaw Cycle under the Conditions of Creep Tests of Plastics Geogrid." Applied Mechanics and Materials 170-173 (May 2012): 317–21. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.317.

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Through testing the creep characteristics of plastic geogrid under the temperature of 20°C，10°C，0°C and -20°C, we obtained the creep characteristics curve under the different temperature.In order to obtioning the creep regulations of plastic geogrid by freezing and thawing cycle , we made the plastic geogrid for10 times freezing and thawing cycle at -20°C - 20°C, the one which was tested under the temperature of 20°C until its deformation became stable. Conclusions: (1) The creep of the plastic geogrid under different temperatures is quite different, it is greatly influenced by temperature and the lower the temperature the smaller the creep value; freezing and thawing cycle have influence in creep characteristics,In the condition of freezing and thawing cycle,while the creep value get stable at the normal temperature, the creep value also increasing with the temperature getting high and decreasing with temperature getting low; (2) According to the creep regulations under low temperature and freezing and thawing cycle condition,we advance the counting method of impact factor of freezing and thawing cycle, DR and creep impact factor of low temperature FcR.

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Baltrėnas, Pranas, Petras Vaitiekūnas, and Inga Jakštonienė. "STUDY OF GAS–SOLID FLOW IN A MULTICHANNEL CYCLONE / ORO IR KIETŲJŲ DALELIŲ SRAUTO DAUGIAKANALIAME CIKLONE TYRIMAS." Journal of Environmental Engineering and Landscape Management 20, no. 2 (2012): 129–37. http://dx.doi.org/10.3846/16486897.2011.645825.

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This paper aims to analyse the problem of the gas–solid particle (SP) flow in the multichannel cyclone (three rings) with tangential inlet (KDG – equipment for separation of solid particles from gaseous fluid flow). It provides a review of experimental and theoretical papers that describe cyclones with a very complex swirling flow. The paper describes the experimental study and numerical modelling of the flow in the multichannel cyclone, the height of which is 0.72 m and the diameter – 0.50 m; with the height of the cylindrical part amounting to 0.29 m, the height of the conical part – 0.43 m, and the inlet area – 0.29×0.034 m2. The multi-functional measuring instrument Testo 400, intended for measuring the flow velocity in the inlet and outlet of the multichannel cyclone was used in experimental studies of the cyclone. Three-dimensional transport differential equations (Reynolds) for incompressible turbulent flow inside a cyclone are solved numerically using finite volume-based numerical method and turbulence models, namely the Standard k-ϵ model, the RNG k-ϵ model. According to results obtained during the experiments with quartz sand and quartz sand dust pollutants, the highest SP treatment efficiency as regards these pollutants, reaching 85.8-90.4%, was obtained. Modelling results obtained from the numerical tests with the inlet velocity of 6.27–10.78 m/s and, the flow rate of 0.111–0.190 m3/s have demonstrated a reasonable agreement with experimental and theoretical results. The average relative error was ± 4.3%. Santrauka Nagrinėjama dujų ir kietųjų dalelių aerodinamika daugiakanaliame (trijų žiedų) išcentriniame ciklone-filtre (keturkanalis dulkių gaudytuvas – KDG). Srauto įtekėjimas tangentinis. Apžvelgti eksperimentiniai ir teoriniai procesų tokiuose ciklonuose, kuriuose susidaro ypač sudėtingas sūkurinis srautas, tyrimo darbai. Atliktas eksperimentinis tyrimas ir skaitinis oro srauto judėjimo KDG ciklone modeliavimas (ciklonas 0,72 m aukščio ir 0,50 m skersmens, cilindrinės dalies aukštis −0,29 m, kūginės (dulkių rinktuvo) −0,43 m, įtekėjimo angos plotas −0,29×0,034 m2). Ciklono eksperimentiniams tyrimams naudota Testo 400 daugiafunkcis matuoklis, skirtas oro srauto greičiui matuoti daugiakanalio ciklono įtekėjimo ir ištekėjimo angose. Pateiktosios pernašos trimatės diferencialinės lygtys (Reinoldso) atvejo, kai turbulentinis srautas ciklono viduje nespūdusis, skaitiškai spręstos baigtinių tūrių metodu, taikant standartinį k-ϵ, ir RNG k-ϵ turbulencijos modelius. Remiantis tyrimų rezultatais, didžiausiasis ciklono su kvarcinio smėlio ir kvarcinio smėlio dulkių teršalais valymo efektyvumas siekė 85,8–90,4%. Modeliavimo rezultatai, kai įtekėjimo greitis 6,27–10,78 m/s ir debitas −0,111–0,190 m3/s, atitinkamai neblogai sutapo su eksperimentų duomenimis. Vidutinė santykinė paklaida siekė ±4,3 proc.

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Skury, Ana Lúcia Diegues, Sérgio Neves Monteiro, Marcia G. de Azevedo, Laís B. Motta, and Guerold Sergueevitch Bobrovinitchii. "Performance of Nanostructured Diamond Composites in Wear Tests." Materials Science Forum 727-728 (August 2012): 919–23. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.919.

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Diamond-Si nanostructured composites were obtained by cyclic high pressure and high temperature sintering with different processing conditions to examine the dominant microstructural factors and the abrasive wear resistance. The microstructure of the composites was characterized by scanning electron microscopy. The abrasive wear behavior of the composites was evaluated by weight loss in abrasion tests. It was found that improved nanostructured composite properties and denser structures were obtained for sintering performed with more than one cycle of pressure and temperature.

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Agnese, Marisa, Salvatore Valiante, Francesco Angelini, Vincenza Laforgia, Piero Andreuccetti, and Marina Prisco. "Pituitary adenylate cyclase-activating polypeptide and its receptor PAC1 in the testis of Triturus carnifex and Podarcis sicula." General and Comparative Endocrinology 168, no. 2 (2010): 256–61. http://dx.doi.org/10.1016/j.ygcen.2010.03.016.

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Prisco, Marina, Luigi Rosati, Marisa Agnese, Serena Aceto, Piero Andreuccetti, and Salvatore Valiante. "Pituitary adenylate cyclase‐activating polypeptide in the testis of the quail Coturnix coturnix : Expression, localization, and phylogenetic analysis." Evolution & Development 21, no. 3 (2019): 145–56. http://dx.doi.org/10.1111/ede.12285.

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49

Daniel, Philip B., and Joel F. Habener. "Pituitary Adenylate Cyclase-Activating Polypeptide Gene Expression Regulated by a Testis-Specific Promoter in Germ Cells during Spermatogenesis*." Endocrinology 141, no. 3 (2000): 1218–27. http://dx.doi.org/10.1210/endo.141.3.7347.

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50

Nakamura, K., T. Nakamachi, K. Endo, et al. "Distribution of pituitary adenylate cyclase-activating polypeptide (PACAP) in the human testis and in testicular germ cell tumors." Andrologia 46, no. 5 (2013): 465–71. http://dx.doi.org/10.1111/and.12102.

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