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Статті в журналах з теми "2017 h-270"
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Stachowiak, Dana M. "Heroes, Heroines and Everything in between: Challenging Gender and Sexuality Stereotypes in Children’s Entertainment Media, C. D. Reinhard and C. J. Olson (eds) (2017)." Queer Studies in Media & Popular Culture 5, no. 1 (March 1, 2020): 112–16. http://dx.doi.org/10.1386/qsmpc_00030_5.
Повний текст джерелаАнотація:
Review of: Heroes, Heroines and Everything in between: Challenging Gender and Sexuality Stereotypes in Children’s Entertainment Media, C. D. Reinhard and C. J. Olson (eds) (2017)Lanham, MD: Lexington Books, 270 pp.,ISBN 978-1-49853-957-9, h/bk, $105.00ISBN 978-1-49853-957-9, eBook, $99.00
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Pham, Thanh Binh, Thuy Van Nguyen, Thi Hong Cam Hoang, Huy Bui, Thanh Son Pham, Van Phu Nguyen, and Hoi Van Pham. "Synthesis and deposition of Silver nanostructures on the silica microsphere by laser-assisted photochemical method for SERS applications." Photonics Letters of Poland 12, no. 4 (December 17, 2020): 97. http://dx.doi.org/10.4302/plp.v12i4.1049.
Повний текст джерелаАнотація:
The homogeneous distribution of nano-metallic structures on the surface-enhanced Raman (SERS) substrates plays an important factor for high-sensitive Raman scattering measurement. In this paper, we present a low-cost laser-assisted photochemical method for making a SERS probe based on silver nanostructures, which are one-timely synthesized nano-silver structures, homogeneously deposited on silica microsphere surfaces. Achieved SERS-activity substrates with a homogeneous distribution of Ag-nanostructures are verified by a mapping technique on the surface of Ag-coated microsphere for the detection of low concentration of Rhodamine 6G in aqueous solutions in a range of 10-4-10-9M. The obtained results show that a SERS microsphere probe has a good repetition of SERS-activity in any space of sensing area, and large potential for application in a biochemical sensing technique. Full Text: PDF ReferencesY. Chen et al., "Interfacial reactions in lithium batteries", J. Phys. D: Appl. Phys. 50, 02510 (2017). CrossRef T.B. Pham, H. Bui, H.T. Le, V.H. Pham, "Characteristics of the Fiber Laser Sensor System Based on Etched-Bragg Grating Sensing Probe for Determination of the Low Nitrate Concentration in Water", Sensors 17, 0007 (2017). CrossRef X. Wang, O.S. Wolfbeis, "Fiber-Optic Chemical Sensors and Biosensors (2013–2015)", Anal. Chem. 88, 203 (2016). CrossRef R. Wang, K. Kim, N. Choi, X. Wang, J. Lee, J.H. Joen, G. Rhie, J. Choo, "Highly sensitive detection of high-risk bacterial pathogens using SERS-based lateral flow assay strips", Sens. Actuators B-Chem. 270, 72 (2018). CrossRef H. Zhang et al., "Determination of Pesticides by Surface-Enhanced Raman Spectroscopy on Gold-Nanoparticle-Modified Polymethacrylate", Anal. Let. 49, 2268 (2016). CrossRef L. Chen, H. Yan, X. Xue, D. Jiang, Y. Cai, D. Liang, Y.M. Jung, X.X. Han, B. Zhao, "Surface-Enhanced Raman Scattering (SERS) Active Gold Nanoparticles Decorated on a Porous Polymer Filter", Appl. Spectrosc. 71, 1543 (2017). CrossRef A. Matikainen, T. Nuutinen, P. Vahimaa, S. Honkanen, "A solution to the fabrication and tarnishing problems of surface-enhanced Raman spectroscopy (SERS) fiber probes", Sci. Rep. 5, 8320 (2015). CrossRef J. Zhang, S. Chen, T. Gong, X. Zhang, Y. Zhu, "Tapered Fiber Probe Modified by Ag Nanoparticles for SERS Detection", Plasm. 11, 743 (2016). CrossRef W. Xu et al., "A Dual-Butterfly Structure Gyroscope", Sensors 17, 467 (2017). CrossRef K. Setoura, S. Ito, M. Yamada, H. Yamauchi, H. Miyasaka, "Fabrication of silver nanoparticles from silver salt aqueous solution at water-glass interface by visible CW laser irradiation without reducing reagents", J. Photochem. Photobio. A: Chem. 344, 168 (2017). CrossRef K. Liu, Y. Bai, L. Zhang, Z. Yang, Q. Fan, H. Zheng, Y. Yin, C. Gao, "Porous Au–Ag Nanospheres with High-Density and Highly Accessible Hotspots for SERS Analysis", Nano Lett. 16, 3675 (2016). CrossRef Z. Huang, X. Lei, Y. Liu, Z. Wang, X. Wang, Z. Wang, Q. Mao, G. Meng, "Tapered Optical Fiber Probe Assembled with Plasmonic Nanostructures for Surface-Enhanced Raman Scattering Application", ACS Appl. Mater. Interfaces 7, 17247 (2015). CrossRef
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Negovan, Anca, Mihaela Iancu, Valeriu Moldovan, Simona Mocan, and Claudia Banescu. "The Interaction between GSTT1, GSTM1, and GSTP1 Ile105Val Gene Polymorphisms and Environmental Risk Factors in Premalignant Gastric Lesions Risk." BioMed Research International 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/7365080.
Повний текст джерелаАнотація:
The study investigated the possible influence of GSTM1, GSTT1, and GSTP1 gene polymorphisms as predisposing factors for premalignant gastric lesions as well as their interaction with H. pylori infection, gastrotoxic drugs, smoking, and alcohol consumption. In this study, 270 patients with a complet set of gastric biopsies and successfully genotyped were finally included. The GSTM1 gene polymorphism had significant contribution in mild/severe endoscopic lesions (p=0.01) as well as in premalignant lesions (p=0.01). The GSTM1 null genotype increased the risk for mucosal defects in H. pylori-negative patients (OR = 2.27, 95% CI: 1.20–4.37) and the risk for premalignant lesions in patients with no alcohol consumption (OR = 2.13, 95% CI: 1.19–3.83). The GSTT1 deleted polymorphism did not significantly increase the risk for premalignant lesions in the absence of gastrotoxic drugs (OR = 1.82, 95% CI: 0.72–4.74). The combined GSTT1T1 and GSTM1 null polymorphisms were borderline correlated with an increased risk for premalignant lesions (OR = 1.72, 95% CI: 1.00–2.97). The wild-type GSTP1 Ile/Ile genotype versus the variant genotypes Ile/Val + Val/Val was significantly associated with a decreased risk of gastric atrophy/intestinal metaplasia (OR = 0.60, 95% CI: 0.37–0.98). In conclusion, the GSTM1 and GSTT1 null genotypes increased the risk for premalignant and endoscopic gastric lesions, modulated by H. pylori, alcohol, or gastrotoxic drug consumption, while the presence of the GSTP1Val allele seemed to reduce the risk for premalignant lesions.
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Quach, Qui, Ahmed Elmekawy, and Tarek M. Abdel-Fattah. "Silver Modified Nanoporous Materials for Iodine Removal." ECS Meeting Abstracts MA2022-02, no. 8 (October 9, 2022): 674. http://dx.doi.org/10.1149/ma2022-028674mtgabs.
Повний текст джерелаАнотація:
Radioactive elements such as iodine (e.g., 129I or 131I isotopes), which is discharged into the environment as a result of nuclear detonations and reactor accidents, has a negative impact on human health and the ecosystem [1-3]. Radioactive iodine can be discharged as a direct aqueous pollutant when nuclear fission reactors are cooled with water. Both the Chernobyl and Fukushima nuclear disasters resulted in huge amounts of radioactive iodine being released into the atmosphere (the majority of which was subsequently deposited on the soil, where it leached into water), as well as directly into water bodies [1-3]. Medical is a secondary source of radioactive iodine, as radioactive isotopes are commonly employed for diagnostic and therapeutic purposes. Also, seawater is a natural source of iodine, due to that, the iodine can move into drinking water aquifers, causing increased iodine levels. The removal of radioactive elements such as iodine have been the target of numerus studies using different adsorption methods. However, most of the research to far has concentrated on the adsorption of iodine gas or iodine from organic solvents. There have been few cases of iodine removal from water at room temperature [1-3]. Nanotechnology have been widely used in many research projects related to environmental issues such as suitable energy and remediations [4-21]. The major goal of this research is to synthesize and investigate different nanoporous silicates with different pore size based on synthetic and naturally occurring materials such as zeolites modified with silver to remove iodine from water with high selectivity. The resultant materials are thoroughly investigated, via numerous characterization techniques such as XRD, XRF, SEM/EDX, TEM, and BET surface area measurements. The adsorption study shows a great promises for the resultant composites. For example, iodine was removed from aqueous solutions using synthetic zeolite-13X-Ag (Ag-13X) nanocomposites. The Ag-13X composites results revealed a high removal efficiency (up to 84% removal of iodine from aqueous media) compared to 13X that remove only 22% of iodine under the same adsorption conditions. References Steinhauser, A. Brandl , T.E. Johnson, 470–47, 800-817 (2014) Zhao, X., Han, X., Li, Z., Huang, H., Liu, D., Zhong, C., Appl. Surf. Sci. 351, 760–764 (2015). Tauanov, V.J. Inglezakis, Science of The Total Environment, 682, 259-270 (2019.). W.Chapman, P.J Chupas., T.M Nenoff. J. Am. Chem. Soc., 132, 8897–8899 (2010). ME Mahmoud, SS Haggag, MA Rafea, TM Abdel-Fattah, Polyhedron 28 (16), 3407-3414 (2009) C Huff, JM Long, A Aboulatta, A Heyman, TM Abdel-Fattah, ECS Journal of Solid State Science and Technology 6 (10), M115 (2017) A Wixtrom, J Buhler, T Abdel-Fattah, Journal of Chemical Education 91 (8), 1232-1235 (2014) ME Mahmoud, SS Haggag, TM Abdel-Fattah, Polyhedron 26 (14), 3956-3962 (2007) C Huff, T Dushatinski, A Barzanji, N Abdel-Fattah, K Barzanji, ECS Journal of Solid State Science and Technology 6 (5), M69 (2017) TM Abdel-Fattah, B Bishop, Journal of Environmental Science and Health, Part A 39 (11-12), 2855-2866 (2014) TM Abdel-Fattah, ME Mahmoud, MM Osmam, SB Ahmed, Journal of Environmental Science and health, part A 49 (9), 1064-1076 (2014) ME Mahmoud, TM Abdel-Fattah, MM Osman, SB Ahmed, Journal of Environmental Science and Health, Part A 47 (1), 130-141 (2012) C Huff, E Biehler, Q Quach, JM Long, TM Abdel-Fattah, Colloids and Surfaces A: Physicochemical and Engineering Aspects 610 (5), 125734 (2021) M Abdel-Fattah, A Wixtrom, K Zhang, W Cao, H Baumgart, ECS Journal of Solid State Science and Technology 3 (10), M61 (2014) M. Abdel-Fattah, M.E Mahmoud, M. M. Osmam, S.B. Ahmed, Journal of Environmental Science and health part A, 49, 1064-1076 (2014) C Huff, T Dushatinski, TM Abdel-Fattah, International Journal of Hydrogen Energy 42 (30), 18985-18990 (2017) C Huff, JM Long, A Heyman, TM Abdel-Fattah, ACS Applied Energy Materials 1 (9), 4635-4640 (2018) A Mahapatro, TD Matos Negrón, C Bonner, TM Abdel-Fattah, Journal of Biomaterials and Tissue Engineering 3 (2), 196-204 (2013) T Dushatinski, C Huff, TM Abdel-Fattah, Applied Surface Science 385, 282-288 (2016) ME Mahmoud, MM Osman, SB Ahmed, TM Abdel-Fattah, Chemical engineering journal 175, 84-94 (2011) TM Abdel-Fattah, ME Mahmoud, Chemical engineering journal 172 (1), 177-183 (2011) R Bhure, TM Abdel-Fattah, C Bonner, JC Hall, A Mahapatro, Journal of biomedical nanotechnology 6 (2), 117-128 (2010) TM Abdel-Fattah, D Loftis, A Mahapatro, Journal of biomedical nanotechnology 7 (6), 794-800 (2011) OH Elsayed-Ali, T Abdel-Fattah, HE Elsayed-Ali, Journal of hazardous materials 185 (2-3), 1550-1557 (2011) R Bhure, A Mahapatro, C Bonner, TM Abdel-Fattah, Materials Science and Engineering: C 33 (4), 2050-2058 (2013) BE Bishop, BA Savitzky, T Abdel-Fattah, Ecotoxicology and Environmental Safety 73 (4), 565-571 (2010)
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Wong, K. C., S. W. Armfield, and N. Williamson. "Numerical investigation and modelling of the venous injection of sclerosant foam." ANZIAM Journal 60 (November 29, 2019): C261—C278. http://dx.doi.org/10.21914/anziamj.v60i0.14099.
Повний текст джерелаАнотація:
Sclerosant foam, a mixture of a surfactant liquid and air, is injected directly into varicose veins as a treatment that causes the vein to collapse. This investigation develops a model that will allow the medical specialist to visualise how the sclerosant foam will interact with the blood and behave within the vein. The process is simulated using a multiphase computational fluid dynamics model with the sclerosant foam considered as a two-phase non-Newtonian power law viscosity liquid. The governing multiphase equations are solved using an Eulerianâ –â Eulerian approach coupled with a population balance model to predict the bubble size distribution within the flow field. The computational results demonstrate similar flow characteristics and flow features to an available set of experimental results. The model predicts the mixing layers between the sclerosant foam and the ambient fluid, and the sclerosant liquid and the ambient fluid, as well as the sclerosant liquid coverage on the vein wall and the bubble size distribution within the vein. These quantities are of interest to medical specialists allowing them to assess the treatment feasibility and safety before treating the patients.
References S. Ali Mirjalili, J. C. Muirhead, and M. D. Stringer. Redefining the surface anatomy of the saphenofemoral junction in vivo. Clin. Anat., 27(6):915–919, 2014. doi:10.1002/ca.22386. E. Cameron, T. Chen, D. E. Connor, M. Behnia, and K. Parsi. Sclerosant foam structure is strongly influenced by liquid air fraction. Eur. J. Vasc. Endo. Surg., 46:488–494, 2013. doi:10.1016/j.ejvs.2013.07.013. P. Coleridge-Smith. Saphenous ablation: Sclerosant or sclerofoam? Semin. Vasc. Surg., 18:19–24, 2005. doi:10.1053/j.semvascsurg.2004.12.007. J.-J. Guex. Complications and side-effects of foam sclerotherapy. Phlebology, 24:270–274, 2009. doi:10.1258/phleb.2009.009049. Ansys Inc. ANSYS FLUENT 12.0 population balance module manual. ANSYS, 2010. URL https://www.afs.enea.it/project/neptunius/docs/fluent/html/popbal/main_pre.htm. F. Ren, N. A. Noda, T. Ueda, Y. Sano, Y. Takase, T. Umekage, Y. Yonezawa, and H. Tanaka. CFD-PMB coupled simulation of a nanobubble generator with honeycomb structure. volume 372 of IOP Conference Series: Materials Science and Engineering, page 012012, June 2018. doi:10.1088/1757-899X/372/1/012012. P. Souroullas, R. Barnes, G. Smith, S. Nandhra, D. Carradice, and I. Chetter. The classic saphenofemoral junction and its anatomical variations. Phlebology, 32(3):172–178, 2017. doi:10.1177/0268355516635960. A. H. Syed, M. Boulet, T. Melchiori, and J. M. Lavoie. CFD simulations of an air-water bubble column: Effect of Luo coalescence parameter and breakup kernels. Front. Chem., 5(68):1–16, 2017. doi:10.3389/fchem.2017.00068. T. Wang and J. Wang. Numerical simulation of gas-liquid mass transfer in bubble column with a CFD-PBM coupled model. Chem. Eng. Sci., 62:7107–7118, 2007. doi:10.1016/j.ces.2007.08.033. M. R. Watkins. Deactivation of sodium tetradecyl sulphate injection by blood proteins. Euro. J. Vasc. Endo. Surg., 41(4): 521–525, 2011. doi:10.1016/j.ejvs.2010.12.012. K. Wong. Experimental and numerical investigation and modelling of sclerosant foam. PhD thesis, University of Sydney, 2018. K. Wong, T. Chen, D. E. Connor, M. Behnia, and K. Parsi. Basic physiochemical and rheological properties of detergent sclerosants. Phlebology, 30(5):339–349, 2015. doi:10.1177/0268355514529271. K. C. Wong, T. Chen, D. E. Connor, M. Behnia, and K. Parsi. Computational fluid dynamics of liquid and foam sclerosant injection in a vein model. Appl. Mech. Mater., 553:293–298, 2014. doi:10.4028/www.scientific.net/AMM.553.293.
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AlAli, Musaed, Yaser AlKulaib, Ahmad Bash, Hamed AlDhuaina, Ibraheem AlAskar, and Nabi AlDuwaila. "DIVIDEND POLICY EFFECT ON SHARE PRICES: A COMPARISON STUDY BETWEEN ISLAMIC AND CONVENTIONAL BANKS IN KUWAIT." International Journal of Professional Business Review 9, no. 5 (May 15, 2024): e04608. http://dx.doi.org/10.26668/businessreview/2024.v9i5.4608.
Повний текст джерелаАнотація:
Ahmad, A., & Hassan, M. (2007). Regulation and performance of Islamic banking in Bangladesh. Thunderbird International Business Review, 492, 251-277. Ahmed, F., Rafay, A., & Ahmed, A. (2018). Dividend Payout Policy of Conventional Banking and Islamic Banking in Pakistan. Al-Iqtishad: Jurnal Ilmu Ekonomi Syariah (Journal of Islamic Economics), 10(1), 135–152. doi: http//dx.doi.org/10.15408/aiq.v10i1.6103 Alasfour, F., Jaara, B., & Abusaleem, K. (2024). Dividend Payout Policy of the Islamic and Conventional Banks in the Gulf Cooperation Council (GCC) Countries. Migration Letters, 21(4), 908-925. Al-Amin, A. (2009). Dividend distribution and its impact on public share prices of shares, the case of the Sudane French Bank. Unpublished Master Thesis, University of Sudan and Technology, Sudan. Al-Ammar. Baker, H., & Weigand, R. (2015). Corporate dividend policy revisited. Managerial Finance, 41(2), 126-144. Bhattacharya, S. (1979). Imperfect Information, Dividend Policy, and 'The Bird In The Hand. Fallacy”. Bell Journal of Economics, 10(1), 259-270 Black, F. (1976). The dividend puzzle. Journal of portfolio management, 2(2), 5-8. Brealey, R. A. & Myers, S. C. (2003). Principles of corporate finance (7th ed.). New York: McGraw Hill. Chang, R., & Rhee, S. (1990). The impact of personal taxes on corporate dividend policy and capital structure decisions. Financial Management, 19(2), 21-31. Dhaliwal, D. S., Erickson, M., & Trezevant, R. (1999). A test of the theory of tax Clienteles for dividend policies. National Tax Journal, 52, 179-194. Donald, K. (2011). International accounting IFRS. John Wiley & Son. 783-784. Doumpos, M., Hasan, I., & Pasiouras, F. (2017). Bank overall financial strength: Islamic versus conventional banks. Economic Modelling, 64, 513-523. Elmagrhi, M., Ntim, C., Crossley, R., Malagila, J., Fosu, S., & Vu, T. (2017). Corporate governance and dividend pay-out policy in UK listed SMEs: The effects of corporate board characteristics. International Journal of Accounting & Information Management, 25(4), 459-483. Eng, S.H., Yahya, M. H., & Hadi, A. R. (2013). The dividend payout policy–a comparison on Malaysian Islamic and conventional financial institutions. Journal of WEI Business and Economics, 2(2), 12-20. Fink, C., & Theissen, E. (2014). Dividend taxation and DAX futures prices (No. 14-08). CFR Working Paper. Hafeez, A. & Attiya, Y. (2009). The Determinants Of Dividend Policy In Pakistan. International Research Journal of Finance Economics, 25, 148-171. Hafsi, R. (2016). Study and analysis of the effect of the dividend policy on the performance of shares of listed companies in the financial market, the case of the Dubai Financial Market for the period 2011-2014, University of Qasdah Murbah and Oqlala. Algerian Journal of Accounting and Financial Studies, 15(2), 39-49. Huda, F., & T. Farah. (2011). Determinants of Dividend Decision: A Focus on Banking Sector in Bangladesh. International Research Journal of Finance and Economics, 77, 33-46. Jaara, O., Jaara, O., Shamieh, J., & Fendi, U. (2017). Liquidity risk exposure in Islamic and Conventional banks. International Journal of Economics and Financial Issues, 7(6), 16-26. Mashkour, S., & Sadiq, Z. (2018). The relationship between the dividend policy and the market value of the stock and its impact on determining the value of the company. Applied research in a sample of banks registered in the Iraqi market for securities. Journal of the Kufa Studies Center, 50, 221-248. Miletkov, M., Moskalev, S., & Wintoki, M. B. (2015). Corporate boards and acquirer returns: international evidence. Managerial Finance, 41(3), 244-266. Nissim, D. & Ziv, A. (2001). Dividend changes and future profitability. The Journal of Finance, 56(6), 2111-2133. Pal, K., & Goyal, P. (2007). Leading Determinants of Dividend Policy: A Case Study of the Indian Banking Industry. Decision (0304-0941), 34(2), 87-98. Petit, R. (1977). Taxes, transactions costs and the Clientele effect of dividends. Journal of Financial Economics, 5, 419-436. Pruitt, S., & Gitman, L. (1991). The interactions between the investment, financing, and dividend decisions of major US firms. Financial Review, 26(33), 409-430. Rafique, M. (2012). Factors affecting dividend payout: Evidence from listed non-financial firms of Karachi stock exchange. Business Management Dynamics, 1(11), 76-92.
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Dhini, Debby R., Hermansyah Hermansyah, and Supanjani Supanjani. "Rootstock Incision Type and the Origin of Bud on the Scion Influence the Success Rate of Budding Propagation of “Rimau Gerga Lebong” Tangerine." Akta Agrosia 21, no. 2 (December 31, 2018): 13–18. http://dx.doi.org/10.31186/aa.21.2.13-18.
Повний текст джерелаАнотація:
The development of citrus crops is directed to produce tangerine plants that lead to substitute imported fruits by the development of budding seedlings technique using local varieties citrus. This research was conducted in November 2016 until March 2017 in citrus nursery of Horticultural Seed Center of Pematang Donok Village, Kabawetan Sub-district, Kepahiang Regency, Bengkulu Province. The research was arranged in a Completely Random Design with combination of two treatments, the first treatment was the origin of bud on the scion plant, they were E1 (upper part of the shoot scion), E2 (middle part of the shoot scion), E3 (basal of the shoot scion). The second treatment was cut type on the rootstock, they were J1 (H type), J2 (Forkert slice), J3 (T wedge). The treatment was repeated three times, so there were 27 experimental units. Each experimental unit consisted of 10 liners, so there were 270 liners of the experiment. The result of this research showed that incision types of H model and Forkert model, as well as the bud originated from the middle and the basal part of shoot scion were good to support the success rate of budding propagation of Rimau Gerga Lebong (RGL) tangerine.
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Russell, Thomas D., Richard L. White, Knox S. Long, William P. Blair, Roberto Soria, and P. Frank Winkler. "A new radio catalogue for M83: supernova remnants and H ii regions." Monthly Notices of the Royal Astronomical Society 495, no. 1 (May 5, 2020): 479–501. http://dx.doi.org/10.1093/mnras/staa1177.
Повний текст джерелаАнотація:
ABSTRACT We present a new catalogue of radio sources in the face-on spiral galaxy M83. Radio observations taken in 2011, 2015, and 2017 with the Australia Telescope Compact Array at 5.5 and 9 GHz have detected 270 radio sources. Although a small number of these sources are background extragalactic sources, most are either H ii regions or supernova remnants (SNRs) within M83 itself. Three of the six historical supernovae are detected, as is the very young remnant that had been identified in a recent study, which is likely the result of a supernova that exploded in the last ∼100 yr but was missed. All of these objects are generally fading with time. Confusion limits our ability to measure the radio emission from a number of the SNRs in M83, but 64 were detected in unconfused regions, and these have the approximate power-law luminosity function that has been observed in other galaxies. The SNRs in M83 are systematically smaller in diameter and brighter than those that have been detected at radio wavelengths in M33. A number of the radio sources are coincident with X-ray sources in M83; most of these coincident sources turn out to be SNRs. Our dual frequency observations are among the most sensitive to date for a spiral galaxy outside the Local Group; despite this we were not able to place realistic constraints on the spectral indices, and as a result, it was not possible to search for SNRs based on their radio properties alone.
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Aytar, Oktay, Ali Tangel, and Engin Afacan. "A 10 GS/s time-interleaved ADC in 0.25 micrometer CMOS technology." Journal of Electrical Engineering 68, no. 6 (November 1, 2017): 415–24. http://dx.doi.org/10.1515/jee-2017-0076.
Повний текст джерелаАнотація:
Abstract This paper presents design and simulation of a 4-bit 10 GS/s time interleaved ADC in 0.25 micrometer CMOS technology. The designed TI-ADC has 4 channels including 4-bit flash ADC in each channel, in which area and power efficiency are targeted. Therefore, basic standard cell logic gates are preferred. Meanwhile, the aspect ratios in the gate designs are kept as small as possible considering the speed performance. In the literature, design details of the timing control circuits have not been provided, whereas the proposed timing control process is comprehensively explained and design details of the proposed timing control process are clearly presented in this study. The proposed circuits producing consecutive pulses for timing control of the input S/H switches (ie the analog demultiplexer front-end circuitry) and the very fast digital multiplexer unit at the output are the main contributions of this study. The simulation results include +0.26/−0.22 LSB of DNL and +0.01/−0.44 LSB of INL, layout area of 0.27 mm2, and power consumption of 270 mW. The provided power consumption, DNL and INL measures are observed at 100 MHz input with 10 GS/s sampling rate.
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Brossaud, Julie, Monique Leban, Jean-Benoit Corcuff, Florence Boux de Casson, Anne-Gaëlle Leloupp, Damien Masson, Valérie Moal, and Kalyane Bach-Ngohou. "LC-MSMS assays of urinary cortisol, a comparison between four in-house assays." Clinical Chemistry and Laboratory Medicine (CCLM) 56, no. 7 (June 27, 2018): 1109–16. http://dx.doi.org/10.1515/cclm-2017-0806.
Повний текст джерелаАнотація:
Abstract Background: Twenty-four hour urinary free cortisol (UFC) determination can be used for screening and follow-up of Cushing syndrome (CS). As immunoassay methods lack specificity for UFC measurement, the use of high-performance liquid chromatography coupled to mass spectrometer (LC-MSMS) is recommended. The aim of our study was to compare UFC results using four LC-MSMS methods performed in four independent laboratories in order to evaluate interlaboratory agreement. Methods: Frozen aliquots of 24-h urine samples (78 healthy volunteers and 20 patients with CS) were sent to four different laboratories for analysis. Following liquid-liquid or solid-liquid extraction, UFC were determined using four different LC-MSMS assay. Results: UFC intra- and interassays variation coefficients were lower than 10% for each centre. External quality control results were not significantly different. UFC normal ranges (established from healthy volunteers) were 17–126, 15–134, 12–118 and 27–157 nmol/day, respectively. Classification of UFC from healthy volunteers and patients with CS using a 95th percentile threshold was similar. However, for extreme UFC values (<50 or >270 nmol/day), negative or positive bias was noted. Conclusions: Even for highly specific methods such as LC-MSMS, variations of results can be found depending on analytical process. Validation of LC-MSMS methods including determination of the reference range is essential.
Книги з теми "2017 h-270"
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Relations, United States Congress House Committee on International. Requesting the President to submit to the House the report prepared for the Joint Chiefs of Staff and documents on reconstruction-security of post-war Iraq ; amending the Foreign Assistance Act of 1961 to reauthorize OPIC ; commending the National Endowment for Democracy ; authorizing appropriations for FY 2004-2005 to carry out the Congo Basin Forest Partnership ; condolences in response to the murder of Swedish Foreign Minister Lindh ; and expressing the sense of the House regarding the Ukraine man-made famine in 1932-1933: Markup before the Committee on International Relations, House of Representatives, One Hundred Eighth Congress, first session, on H. Res. 364, H.R. 3145, H. Con. Res. 274, H.R. 2264, H. Res. 372, and H. Res. 356, September 25, 2003. Washington, D.C: U.S. G.P.O., 2003.
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United States. Congress. House. Committee on Rules. Providing for consideration of the bill (H.R. 2701) to authorize appropriations for fiscal year 2010 for intelligence and intelligence-related activities of the United States government, the Community Management Account, and the Central Intelligence Agency Retirement and Disability System, and for other purposes: Report (to accompany H. Res. 618). Washington, D.C: U.S. G.P.O., 2009.
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United, States Congress House Committee on Foreign Affairs Subcommittee on Africa Global Health Global Human Rights and International Organizations. Vietnam Human Rights Act of 2013; concerning the ongoing conflict in the Democratic Republic of the Congo; expressing the sense of the House that the President should nominate a qualified and independent individual for the position of Inspector General of the Department of State and Broadband Board of Governors; and recognizing the long-term partnership and friendship between the United States and the Hashemite Kingdom of Jordan: Markup before the Committee on Foreign Affairs, House of Representatives, One Hundred Thirteenth Congress, first session on H.R. 1897, H. Res. 131, H. Res. 273 and H. Res. 222, June 27, 2013. Washington: U.S. Government Printing Office, 2013.
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United States. Congress. House. Committee on Rules. Providing for further consideration of the bill (H.R. 2701) to authorize appropriations for fiscal year 2010 for intelligence and intelligence-related activities of the United States government, the Community Management Account, and the Central Intelligence Agency retirement and disability system, and for other purposes: Report (to accompany H. Res. 1113). Washington, D.C: U.S. G.P.O., 2010.
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Affairs, United States Congress House Committee on Foreign. Calling on the League of Arab States to acknowledge the genocide in the Darfur Region of Sudan and to step up their efforts to stop the genocide in Darfur; calling on the government of the Socialist Republic of Vietnam to immediately and unconditionally release Father Nguyen Van Ly, Nguyen Van Dai, Le Thi Cong Nhan, and other political prisoners and prisoners of conscience, and for other purposes; and commemorating the 200th anniversary of the abolition of the transatlantic slave trade: Markup before the Committee on Foreign Affairs, House of Representatives, One Hundred Tenth Congress, first session, on H. Con. Res. 7, H. Res. 243 and H. Res. 272, April 19, 2007. Washington: U.S. G.P.O., 2007.
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United States. Congress. House. Committee on Rules. Providing for consideration of the bill (H.R. 2701) to authorize appropriations for fiscal year 2010 for intelligence and intelligence-related activities of the United States government, the Community Management Account, and the Central Intelligence Agency retirement and disability system, and for other purposes, waiving a requirement of clause 6(a) of rule XIII with respect to consideration of certain resolutions reported from the Committee on Rules, and providing for consideration of motions to suspend the rules: Report (to accompany H. Res. 1105). Washington, D.C: U.S. G.P.O., 2010.
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United States. Congress. House. Committee on Rules. Providing for consideration of bill (H.R. 847) to amend the Health Service Act to extend and improve protections and services to individuals directly impacted by the terrorist attack in New York City on September 11, 2001, and for other purposes; providing for consideration of bill (H.R. 2378) to amend title VII of the Tariff Act of 1930 to clarify that fundamental exchange-rate misalignment by any foreign nation is actionable under United States countervailing and antidumping duty laws, and for other purposes; and providing for consideration of the Senate amendment to the bill (H.R. 2701) to authorize appropriations for fiscal year 2010 for intelligence and intelligence-related activities of the United States government, the Community Management Account, and the Central Intelligence Agency retirement and disability system, and for other purposes: Report (to accompany H. Res. 1674). Washington, D.C: U.S. G.P.O., 2010.
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Neligan, Peter. Plastic Surgery : Volume 4: Trunk and Lower Extremity. Elsevier, 2023.
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Committee On Education and Labor, United States House of Representatives, and United States United States Congress. H. R. 2703: The Private Security Officer Employment Act Of 2007. Independently Published, 2019.
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Lenz, Hans Peter, ed. 38. Internationales Wiener Motorensymposium 27.-28. April 2017. VDI Verlag, 2017. http://dx.doi.org/10.51202/9783186802125.
Повний текст джерелаАнотація:
Dieser zweibändige Bericht macht die Vorträge des 38. Internationalen Wiener Motorensymposiums (27./28. April 2017) einer breiten Öffentlichkeit zugänglich. Ziel der Wiener Motorensymposien ist es, Themen von besonderer Aktualität auf dem Gebiet des Verbrennungsmotors zu behandeln. Das Werk befasst sich u. a. mit den oben angeführten Themen. Der beiliegende USB-Stick enthält die Vorträge sowohl in der Originalversion als auch auf Englisch. Herausgeber: Univ.-Prof. Dr. techn. Dipl.-Ing. H. P. Lenz, Vorsitzender des Österreichischen Vereins für / Kraftfahrzeugtechnik (ÖVK), Wien. ...
Частини книг з теми "2017 h-270"
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Parasuraman, Malathy, and Priyantha Weerasinghe. "Application of mutation breeding techniques in the development of green crop varieties in Sri Lanka: the way forward." In Mutation breeding, genetic diversity and crop adaptation to climate change, 76–82. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249095.0008.
Повний текст джерелаАнотація:
Abstract The Department of Agriculture (DOA) in Sri Lanka initiated mutation breeding in the 1960s with the introduction of a cobalt-60 source. The first rice mutant variety, MI 273, was released for general cultivation in 1971. M1 273, derived from irradiation of the H-4 variety, was identified as a drought-tolerant variety. An indirect rice mutant variety, developed by crossing the short mutant line BW267-3 with a highly adaptable variety, was released as BW 372 in 2013. It is moderately tolerant to blast, bacterial leaf blight, brown plant hopper, gall midge and iron toxicity, and thus increases productivity to 3-4 t/ha on lands prone to iron toxicity. The most popular groundnut variety cultivated in the country, 'Tissa', is a mutant developed by irradiation with gamma-rays at 200 Gy. It showed attributes of high yield, medium maturity (90-100 days) and high oil content (42%). 'Tissa' presently covers 80% of the groundnut cultivated area in Sri Lanka. A sesame mutant line, derived from the variety MI-3 irradiated at 200 Gy with 60Co gamma-rays, was released as 'Malee' (ANK-S2) in 1993. It is a high-yielding variety (1.1-1.8 t/ha) resistant to Phytophthora blight. A cherry-type mutant tomato variety, developed by irradiation of seeds with gamma-rays (320 Gy), was released as 'Lanka Cherry' in 2010. Improved attributes are pear-shaped fruits and bacterial wilt resistance. Narrow genetic variability in many crops is a constraint to the development of new varieties adapted to the changing climate. Hence, the DOA is emphasizing integration of induced mutagenesis in conventional breeding programmes to develop resistant/tolerant varieties having high yield, quality and health-promoting functional properties in field and horticultural crops. The newly installed gamma irradiation chamber facilitates the creation of genetic variability in food crops, thus paving the way for the development of greener varieties.
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Lima, Ana Teresa Macas, Ida Maria Gieysztor Bertelsen, Lisbeth Mølgaard Ottosen, and Neil A. James. "The Effect of Fishing Nets Aging on Metal Uptake." In Marine Plastics: Innovative Solutions to Tackling Waste, 189–210. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-31058-4_11.
Повний текст джерелаАнотація:
AbstractFishing nets are mainly constituted of Polyethylene (PE), Polyamide, Polyethylene terephthalate (PET), Polypropylene (PP), and Nylon. While new, these plastics exhibit pristine mechanical performance but lose it as they age. But what about their metal adsorptive performance? Literature finds that plastics like PET and PVC accumulate Al, Cr, Mg, Fe, Co, Ni, Zn, Cd, and Pb, even when exposed to very low concentrations. This is mainly true for aged PVC (Kedzierski et al. Adsorption/desorption of Micropollutants. Mar Pollut Bull. 127:684–694, 2018). In this study, we look at the effect of age on the properties of fishing nets, including their capacity to adsorb metals. Because fishnets are in great part constituted by PE, we used standardized PE pellets as our reference. In calorimeter signaling, we observed that end-of-life fishing nets display a very different differential scanning calorimetry (DSC) pattern; both new and old fishing nets are very different from standardized PE polymer. Preliminary results show that Cr, Cu, Pb, and Se adsorption onto fishing nets occurs in the first 10 min to 6 h of exposure (24 h for Se). The maximum uptake was registered at 11 mg Cr kg‒1, 38 mg Cu kg‒1, 27 mg Pb kg‒1, and 15 mg Se kg‒1. All these concentrations refer to old end-of-life PE fishing nets, where new, unused PE fishing nets adsorb 2–20 times less (Old in this chapter refers to used fishing nets. The term is not attempting to attribute a particular life span/age to the nets). A comparison to different EU directives that regulate metal content in plastics for different end-uses shows that the old end-of-life PE fishing nets, after exposure to heavy metals, do not meet the regulations for hazardous waste. We believe that Greenlandic old waste fishing nets can be used to clean the wastewater, or metal-contaminated water, in Greenland and eventually, the rest of the world.
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Gibbs, Paul. "The Marketingisation of Higher Education." In Evaluating Education: Normative Systems and Institutional Practices, 221–33. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7598-3_13.
Повний текст джерелаАнотація:
AbstractThis chapter does not stress the marketisation of higher education rather focuses upon the way in which this is done; the marketingisation of higher education. I do not deny that widening access to skills that can fuel growth is a logical extension of a consumerist ideology. What follows acknowledges these structural changes and then focuses on how marketing is a consequence and reinforce of such structural change. Indeed there is a substantial literature which addresses it (e.g. Molesworth et al. Having, being and higher education: The marketization of the university and the transformation of the student into consumer. Teaching in Higher Education, 14(3), 277–287, 2009; Brown R, Carasso H, Everything for sale? The marketisation of UK higher education. Routledge, London, 2013). Nor does it support that marketingation has brought no or only limited contributions to higher education. The expansion of the privileges of higher education to the many from the few, the greater governance and transparency of the process and practices of higher education institutions in their compact with society and a clearer ways to evaluate these activities have, to varying degrees, enhanced higher education. These interventions have opened the market for world class universities (WCUs) allowing them global as well as local reach. Yet it is strange that these improvements are consequences of market interventions by Governments, by publishers in terms of league tables, and by employers in terms of preferred (mythical?) skill sets and not for educative purposes. The emergent practices encouraged by these interventions increase the influence of marketing and facilitate a metamorphosis of institutions from educational entities to market responsive service providers whose intent focuses on impact and enhanced return on capital. This leads WCUs into the endless and Sisyphusan striving, often devoid of any ultimate worthy end but ends which are an inevitable consequence of managing rapidly increasing competition and shifting demands effectively rather than educative priorities. The chapter describes and discusses the consequences.
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Taber, Douglass F. "Heteroaromatic Construction: The Li Synthesis of Mycoleptodiscin A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0068.
Повний текст джерелаАнотація:
Kyungsoo Oh of Chung-Ang University cyclized (Org. Lett. 2015, 17, 450) the chloro enone 1 with NBS to the furan 2. Hongwei Zhou of Zhejiang University acylated (Adv. Synth. Catal. 2015, 357, 389) the imine 3, leading to the furan 4. H. Surya Prakash Rao of Pondicherry University found (Synlett 2014, 26, 1059) that under Blaise conditions, exposure of 5 to three equivalents of 6 led to the pyrrole 7. Yoshiaki Nishibayashi of the University of Tokyo and Yoshihiro Miyake, now at Nagoya University, prepared (Chem. Commun. 2014, 50, 8900) the pyrrole 10 by adding the silane 9 to the enone 8. Barry M. Trost of Stanford University developed (Org. Lett. 2015, 17, 1433) the phosphine-mediated cyclization of 11 to an intermediate that on brief exposure to a Pd catalyst was converted to the pyridine 12. Nagatoshi Nishiwaki of the Kochi University of Technology added (Chem. Lett. 2015, 44, 776) the dinitrolactam 14 to the enone 13 to give the pyridine 15. Metin Balci of the Middle East Technical University assembled (Org. Lett. 2015, 17, 964) the tricyclic pyridine 18 by adding propargyl amine 17 to the aldehyde 16. Chada Raji Reddy of the Indian Institute of Chemical Technology cyclized (Org. Lett. 2015, 17, 896) the azido enyne 19 to the pyridine 20 by simple exposure to I2. Björn C. G. Söderberg of West Virginia University used (J. Org. Chem. 2015, 80, 4783) a Pd catalyst to simultaneously reduce and cyclize 21 to the indole 22. Ranjan Jana of the Indian Institute of Chemical Biology effected (Org. Lett. 2015, 17, 672) sequential ortho C–H activation and cyclization, adding 23 to 24 to give the 2-substituted indole 25. In a complementary approach, Debabrata Maiti of the Indian Institute of Technology Bombay added (Chem. Eur. J. 2015, 21, 8723) 27 to 26 to give the 3-substituted indole 28. In a Type 8 construction, Nobutaka Fujii and Hiroaki Ohno of Kyoto University employed (Chem. Eur. J. 2015, 21, 1463) a gold catalyst to add 30 to 29, leading to 31.
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Taber, Douglass F. "Organocatalyzed Carbocyclic Construction: (+)-Roseophilin (Flynn) and (+)-Galbulin (Hong)." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0071.
Повний текст джерелаАнотація:
Armido Studer of Wilhems-University Münster effected (Chem. Commun. 2012, 48, 5190) the enantioselective conjugate addition of 2 to 1, leading to the cyclopropane 3. Karl Anker Jørgensen of Aarhus University devised (J. Am. Chem. Soc. 2012, 134, 2543) a route to cyclobutanes based on the enantioselective addition of 5 to the nitroalkene 4. Jose L. Vicario of the Universidad del País Vasco reported (Angew. Chem. Int. Ed. 2012, 51, 4104) a similar procedure. Benjamin List of the Max-Planck-Institute Mülheim epoxidized (Adv. Synth. Catal. 2012, 354, 1701) cyclopentenones such as 7 with high ee. Lutz H. Gade of the Universität Heidelberg observed (J. Am. Chem. Soc. 2012, 134, 2946) high ee in the benzylation of 9. Cheng Ma of Zhejiang University formylated (J. Org. Chem. 2012, 77, 2959) cyclopentanone, then condensed the resulting aldehyde 12 with 13 to give 14. Hao Xu of Georgia State University cyclized (Org. Lett. 2012, 14, 858) 15 to the cyclopentenone 16. (+)-Rosephilin 19 inhibits several phosphatases. Bernard L. Flynn of Monash University prepared (Org. Lett. 2012, 14, 1740) the carbocyclic core of 19 by cyclizing 17 to the cyclopentenone 18. Masanori Yoshida of Hokkaido University designed (J. Org. Chem. 2011, 76, 8513) a very simple organocatalyst for the enantioselective conjugate addition of 21 to 20. Samuel H. Gellman of the University of Wisconsin showed (Org. Lett. 2012, 14, 2582) that nitromethane could be added to 23 with high ee. Hiroaki Sasai of Osaka University effected (Angew. Chem. Int. Ed. 2012, 51, 5423) the enantioselective cyclization of the prochiral 25. Ying-Chun Chen of Sichuan University found (Angew. Chem. Int. Ed. 2012, 51, 4401) that the diene 27 could be converted to 29 by way of the intermediate trienamine. Bor-Cherng Hong of the National Chung Cheng University observed (Chem. Commun. 2012, 48, 2385) that under organocatalysis, only one enantiomer of 31 would add to 30, delivering 32 in high ee. Aromatization of 32 led to (+)-galbulin 33.
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Taber, Douglass F. "C–C Bond Construction: The Galano Synthesis of 8-F3t-Isoprostane." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0025.
Повний текст джерелаАнотація:
Nobuaki Kambe of Osaka University devised (Synthesis 2014, 46, 1583) simple conditions for coupling an alkyl halide 1 with a Grignard reagent 2, leading to 3. Michael J. Chetcuti and Vincent Ritleng of the Université de Strasbourg arylated (Chem. Commun. 2014, 50, 4624) the ketone 4 with 5 to give 6. Ilhyong Ryu of Osaka Prefecture University effected (J. Org. Chem. 2014, 79, 3999) net conjugate acylation of the enone 8 to give 9 by reducing 7 in the presence of carbon monoxide. Yasushi Obora of Kansai University employed (Chem. Commun. 2014, 50, 2491) a borrowed hydrogen strategy to effect the net methylation of 10 to 11. There have been many examples of the alkylation of ketones using variations on this strategy. Robert H. Grubbs and Brian M. Stoltz of Caltech decarboxylated (Adv. Synth. Catal. 2014, 356, 130) an acid 12 to the corresponding alpha olefin 13. Lindsey O. Davis of Berry College combined (Tetrahedron Lett. 2014, 55, 3100) the imine 14 with the aldehyde 15 in the presence of 16 to give the enone 17. Masahiro Miyazawa of the University of Toyoma maintained (Synlett 2014, 25, 531) the geometric purity of 18 while coupling it with Me₃Al to give the diene 19. Naoki Kanoh of Tohoku University used (Eur. J. Org. Chem. 2014, 1376) the Micalizio protocol to add 22 with 21 to 20 to give the triene 23. Xile Hu of the Ecole Polytechnique Fédérale de Lausanne coupled (Org. Lett. 2014, 16, 2566) 25 with the iodide 24 to give the alkyne 26. Keiji Tanino of Hokkaido University prepared (Tetrahedron Lett. 2014, 55, 1097) the α-quaternary alkyne 29 by 1,2-addition of 28 to the ketone 27 followed by pinacol rearrangement. Zhaoguo Zhang of Shanghai Jiao Tong University and Tahar Ayad and Virginie Ratovelomanana-Vidal of Chimie ParisTech coupled (ACS Catal. 2014, 4, 44) 31 with the dienyl bromide 30 to deliver the disubstituted allene 32 in high ee. Amir H. Hoveyda of Boston College developed (Angew. Chem. Int. Ed. 2013, 52, 7694) a procedure for the preparation of alkynes such as 33 in substantial ee.
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Taber, Douglass. "Enantioselective Construction of Alkylated Stereogenic Centers." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0038.
Повний текст джерелаАнотація:
The enantioselectivity of alkene reduction usually depends on the geometric purity of the alkene. Bruce H. Lipshutz of the University of California, Santa Barbara used ( Organic Lett. 2007, 9, 4713) carboalumination of the alkyne 1 to prepare 2, which was selectively reduced to 3 in high ee. André B. Charette of the Université de Montréal reported ( Angew. Chem. Int. Ed. 2007, 46, 5955) a related reduction of unsaturated sulfones such as 4. Juan C. Carretero of the Universidad Autónoma de Madrid has developed ( J. Org. Chem. 2007, 72, 9924) a complementary route to enantiomerically-enriched sulfones, by conjugate addition to the unsaturated pyridyl sulfone 6 . Specifically for styrene derivatives, Hans-Günther Schmalz of the University of Cologne has shown (Organic Lett. 2007, 9, 3555) that the product 11 from enantioselective Rh-catalyzed hydroboration can be homologated to 13. Conjugate addition of stabilized carbanions can also be carried out with high enantiocontrol. David A. Evans of Harvard University has described (J. Am. Chem. Soc. 2007, 129, 11583) the Ni-catalyzed addition of malonate 15 to nitroalkenes such as 14. Claudio Palomo of the Universidad de País Vasco (Angew. Chem. Int. Ed. 2007, 46, 8431) and concurrently Yujiro Hayashi of the Tokyo University of Science (Organic Lett. 2007, 9, 5307) have developed organocatalytic protocols for the addition of nitromethane 18 to unsaturated aldehydes such as 17. J. Michael Chong of the University of Waterloo has found (J. Am. Chem. Soc. 2007, 129, 4908) that the Binol-mediated enantioselective conjugate addition of alkenylboronic acids such as 22 required the additional activation of the aryl ketone. Shun-Jun Li of Suzhou University and Teck-Peng Loh of Nanyang Technical University have extended (J. Am. Chem. Soc. 2007, 129, 276) enantioselective conjugate to unsaturated esters such as 24 to more highly substituted Grignard reagents. Alexandre Alexakis of the University of Geneva has demonstrated (Tetrahedron Lett. 2007, 48, 7408) that Ac2O is compatible with Et2 Zn conjugate addition conditions, leading directly to the trapped enolate 27. Selective cleavage of 27 can then be used to prepare acyclic derivatives.
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Taber, Douglass F. "C–H Functionalization: The Ono/Kato/Dairi Synthesis of Fusiocca-1,10(14)-diene-3,8β,16-triol." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0018.
Повний текст джерелаАнотація:
Theodore A. Betley of Harvard University devised (J. Am. Chem. Soc. 2011, 133, 4917) an iron catalyst for inserting the nitrene from 2 into the C–H of 1 to give 3. Bernhard Breit of the Freiburg Institute for Advanced Studies uncovered (J. Am. Chem. Soc. 2011, 133, 2386) a Rh catalyst that effected the intriguing hydration of a terminal alkyne 4 to the allylic ester 5. Yian Shi of Colorado State University specifically oxidized (Org. Lett. 2011, 13, 1548) one of the two allylic sites of 6 to give 7. Kálmán J. Szabó of Stockholm University optimized (J. Org. Chem. 2011, 76, 1503) the allylic oxidation of 9 to 10, using the inexpensive sodium perborate. Masayuki Inoue of the University of Tokyo specifically carbamoylated (Tetrahedron Lett. 2011, 52, 2885) the acetonide 12 to give 14. Stephen Caddick of University College London added (Tetrahedron Lett. 2011, 52, 1067) the formyl radical from 15 to 16 to give 17. Ilhyong Ryu of Osaka Prefecture University and Maurizio Fagnoni of the University of Pavia employed (Angew. Chem. Int. Ed. 2011, 50, 1869) a related strategy to effect the net transformation of 18 to 20. There are many examples of the oxidation of ethers and amines to reactive intermediates that can go on to carbon–carbon bond formation. Ram A. Vishwakarma of the Indian Institute of Integrative Medicine observed (Chem. Commun. 2011, 47, 5852) that with an iron catalyst, the aryl Grignard 22 smoothly coupled with THF 21 to give 23. Gong Chen of Pennsylvania State University effected (Angew. Chem. Int. Ed. 2011, 50, 5192) specific remote C–H arylation of 24, leading to 26. Takahiko Akiyama of Gakushuin University established (J. Am. Chem. Soc. 2011, 133, 2424) conditions for intramolecular hydride abstraction, effecting the conversion of 27 to 28. C–H functionalization in nature is often mediated by cytochrome P450 oxidation. Zhi Li of the National University of Singapore showed (Chem. Commun. 2011, 47, 3284) that a particular cytochrome P450 selectively oxidized 29 to the alcohol 30, leaving the chemically more reactive benzylic position intact.
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Wilcox, Sara, Olha Huzo, Annu Minhas, Nicole Walters, Joel Ehis Adada, Mary Pennington, Luckner Roseme, Denelle Mohammed, Aleksandar Dusic, and Rana Zeine. "The Impact of Medical or Health-Related Internet Searches on Patient Compliance." In Advances in Media, Entertainment, and the Arts, 72–97. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-8630-3.ch005.
Повний текст джерелаАнотація:
Health-related Internet searches have been associated with cyberchondria and can impact how patients receive and react to medical advice. The purpose of this study was to analyze the relationships between patient compliance and the experiences of 191 Internet information seekers from >12 countries and 27 occupations, surveyed online between 2015 and 2016 using the ‘Dr. Net' questionnaire. After Internet search, 75% agreed with the diagnosis given by their doctor and 83% remained compliant with their doctor's orders. Statistical analysis using Kruskal-Wallis H test (“one-way ANOVA on ranks”) and Spearman correlation coefficient revealed strong positive correlations (p < 0.001) between compliance and each of the following: finding the search helpful (86%), being satisfied with Internet information (71%), becoming more cautious about health (60%), finding the information provided by their doctor comprehensible (71%), and agreement with physician. Recommendations are discussed for increasing ehealth literacy and patient-physician trust with improved online medical information.
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Mauricio Espinel Pérez, Nelson. "Synthesis of thermophosphate fertilizers by a plasma torch." In Organic Fertilizers - New Advances and Applications [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1001352.
Повний текст джерелаАнотація:
Phosphoric rock (PR) is the basic building block to produce animal feed, fertilizers, and industrial phosphates. Global demand for PR is estimated to grow from 207 Mtons in 2018 to 263 Mtons in 2035, of which Colombia contributes approximately 0.06 Mtons per year. A novel technology to carry out calcination is the plasma torch, where the electrical resistivity of the system is increased and ionized gas is produced that can reach temperatures above 10,000 °C, which facilitates the transformation of PR into thermophosphates. Two samples of PR from the region central of the Boyacá department, Colombia, were subjected to calcination through a plasma torch and as a result, showed a maximum concentration of total phosphorus between 27 – 33 % of P2O5 and assimilable phosphorus corresponding to the range 3.0 – 4.8 % of P2O5 respectively. Finally, the energy consumption for calcination is ≤ 1.14 kW-h/Kg, respectively.
Тези доповідей конференцій з теми "2017 h-270"
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Lee, Yeongbin, Jin-sung Paik, Minho Kwak, Jinsun Yoo, Kyu Hong Kim, Dongho Lee, and Hyeok-Bin Kwon. "Analysis and Comparison of Experimental Results Both of Wind Tunnel Test and Running Test for HEMU-400X Pantograph." In 2012 Joint Rail Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/jrc2012-74026.
Повний текст джерелаАнотація:
In this paper, experimental results both of wind tunnel test and running test for HEMU-400X pantograph were compared and were analyzed. In wind tunnel test, 1/4scale pantograph for HEMU-400X which is being developed for the maximum speed of 400km/h in Korea were tested to investigate the vertical lift force of pantograph at the operational speed of 250, 270, 300, 330, 360 and 400km/h using lift estimation from 1/4 scaled model results. In the running test of train, the contacting force of pantograph was measured to current operational speed of 300km/h. Finally, the results of vertical lift force of pantograph in wind tunnel test and contacting force for the running test were compared to analyze the aerodynamic characteristics of the pantograph for HEMU-400X.
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Santiago Gutiérrez, Luz Goretti, Mª Teresa Santana Rodríguez, and Cristina Mª Cabrera Hernández. "TRASTORNO POR USO DE ALCOHOL Y TRASTORNO MENTAL. INFLUENCIA DE LA CONCOMITANCIA EN LA EFECTIVIDAD DE LA INTERVENCIÓN AMBULATORIA." In 23° Congreso de la Sociedad Española de Patología Dual (SEPD) 2021. SEPD, 2021. http://dx.doi.org/10.17579/sepd2021o023.
Повний текст джерелаАнотація:
INTRODUCCION La Patología Dual (PD) en el consumo de alcohol condiciona el pronóstico, adherencia y retención en la intervención ambulatoria. OBJETIVOS Conocer prevalencia de patología dual. Determina tasas de adherencia a consulta y tratamiento. Analizar correlación PD cumplimiento y efectividad terapéutica. METODO Estudio descriptivo observacional longitudinal. Referencia muestral: 77 pacientes con TUA de 472 incluidos en Plan de Microeliminación del VHC de San Miguel Adicciones (2017 a 2020). Variables de estudio: sociodemográficas, clínicas y de consumo e indicadores de cumplimiento y retención. RESULTADOS Muestra: 62% hombres y 38% mujeres (34 y 70 años). 52% Patología Dual (69%M; 42%H). Patologías psiquiátricas: 22% trastorno depresivo (53%H;47%M), 7% ansiedad (60%H;40%M), 8% síndrome ansioso depresivo (34%H;66%M). Tentativas autolíticas 16%, (42%H;58%M), 7% más de un trastorno psiquiátrico. Acuden por Iniciativa Propia 49%, derivación MAP (25%), Especializada 9%. La retención es superior en los pacientes que no tienen PD (>12 meses). Menor índice de retención en pacientes con trastorno psiquiátrico 40%. Trastorno Depresivo: 82% de adherencia a consulta (AC), 47% de retención (R) > 6 meses, 29% abandona (A) y 24% alta terapéutica (AT). Trastorno de Ansiedad: 20%(AC), 60% (R) >6 meses, 40% (A), 0% (AT). Trastorno Ansioso-Depresivo: 10% (AC), 67%(R) > 6 meses, 50% (A) y 33% (AT). CONCLUSIONES Predominio de trastornos afectivos: depresión, ansiedad. Diferencia en el factor género en TUA y PD. Prevalencia de más de un Trastorno Mental superior en mujeres. Escasa derivación desde los Servicios Especializados. La concurrencia PD-TUA incide de manera desfavorable en pronóstico, evolución y efectividad terapéutica. References 1. Corrêa Filho JM, Baltieri DA. Psychosocial and clinical predictors of retention in outpatient alcoholism treatment. Braz J Psychiatry. 2012 -12;34(4):413-21. 2. Graff FS, Morgan TJ, Epstein EE, McCrady BS, Cook SM, Jensen NK, et al. Engagement and retention in outpatient alcoholism treatment for women. Am J Addict. 2009 Jul-Aug;18(4):277-88.
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Jin, Fei. "Lancang River Railway Arch Bridge with stiffened skeleton of Concrete-filled Steel Tubes." In IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0940.
Повний текст джерелаАнотація:
<p>The Lancang River railway arch bridge, a key project, is located on Dali~Ruili Railway with a design speed of 140 km/h. The bridge spans over the Lancang River, with the max slope angle of the mountain body on both sides of the river being more than 80 degrees. The distance between the bridge deck and the river surface exceeds 270 m. The whole bridge is 528.1 m long and the main span is 342 m. The x-style arch rib is a deck-type concrete-filled steel tube stiffened skeleton, which becomes the main arch structure of single-box single-cell box section after swing erection, by means of filling the inner space and covering the outer face with concrete.</p>
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"TRASTORNO POR USO DE ALCOHOL Y TRASTORNO MENTAL. LA COMORBILIDAD COMO FACTOR PREDICTOR DE LA EVOLUCIÓN TERAPÉUTICA." In 23° Congreso de la Sociedad Española de Patología Dual (SEPD) 2021. SEPD, 2021. http://dx.doi.org/10.17579/sepd2021p145v.
Повний текст джерелаАнотація:
INTRODUCCION El pronóstico y evolución en el Trastorno por Uso de Alcohol (TUA) y Trastorno Mental (TM) está condicionada por la multifactorialidad: falta de adherencia, recaídas, y complicaciones orgánicas. OBJETIVOS Identificar patología psiquiátrica concomitante. Analizar las tasas de adherencia a consulta y tratamiento. Correlacionar patología psiquiátrica con índices de retención. METODO Estudio descriptivo observacional longitudinal. Referencia muestral: 77 pacientes con TUA de 472 incluidos en Plan de Microeliminación del VHC de San Miguel Adicciones (2017 a 2020). Variables de estudio: sociodemográficas, clínicas y de consumo e indicadores de cumplimiento y retención. RESULTADOS Muestra: 62% hombres y 38% mujeres (34 y 70 años). Inicio del consumo de alcohol entre 15 y 18 años. Presentan Patología Dual 69% mujeres y 42% hombres. 85% de pacientes con TUA presentan un solo TM concomitante (95% hombres, 80% mujeres). Patología psiquiátrica predominante: Trastorno Depresivo 22% (H:53%;M:47%), Trastorno de Ansiedad 7% (H:60%;M:40%), Trastorno Ansioso Depresivo 8% (H:34%;M:66%). Destacar la prevalencia de un 18% de mujeres con Trastorno Psicótico. El 58% de mujeres han realizado uno o más Gesto Autolítico. Acuden por Iniciativa Propia 49%, derivación MAP (25%), Especializada 9%. Trastorno Depresivo: 82% de adherencia a consulta, 47% de retención superior a 6 meses. Trastorno de Ansiedad (20%) y 60% de retención entre 6 y 12 meses. CONCLUSIONES Mujeres con TUA presentan más comorbilidad psiquiátrica. La prevalencia de más de un Trastorno Mental es superior en mujeres. El Trastorno Depresivo es el de mayor incidencia con TUA. Escasa derivación desde los Servicios Especializados. References 1. Corrêa Filho JM, Baltieri DA. Psychosocial and clinical predictors of retention in outpatient alcoholism treatment. Braz J Psychiatry. 2012 -12;34(4):413-21. 2. Graff FS, Morgan TJ, Epstein EE, McCrady BS, Cook SM, Jensen NK, et al. Engagement and retention in outpatient alcoholism treatment for women. Am J Addict. 2009 Jul-Aug;18(4):277-88.
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Mehtani, Moksh, Ikhlaq Hussain, Maulik Kandpal, and Bhim Singh. "Integration of multiple source SPV grid tied system using 27-level cascaded H-bridge converter." In 2016 IEEE 7th Power India International Conference (PIICON). IEEE, 2016. http://dx.doi.org/10.1109/poweri.2016.8077298.
Повний текст джерела
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Li, Zhong, Yuan Fu, Jianyu Zhang, Liancheng Lin, Jianping Huang, Wenyu Mao, Dongsheng Yang, Dandan Zhao, and Xiao Wang. "Design and Test for a High-Temperature Molten Salt Pump." In ASME/NRC 2014 12th Valves, Pumps, and Inservice Testing Symposium. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/nrc2014-5024.
Повний текст джерелаАнотація:
A high-temperature molten salt pump, described as mechanical, free-surface, centrifugal, vertical-shaft, sump type, working at 500°C [932°F] to 600°C [1112°F], has been developed for the Thorium-Based Molten Salt Reactor (TMSR). Flow passage components of the pump are made of Hastelloy C-276 to ensure sufficient strength and corrosion resistance at high temperature. Also, a heat shield plug with air-cooled channels was designed to separate the drive motor, seal elements, and bearings from intense radioactivity and to keep the temperature of the flange seal below 150°C [302°F] and the temperature of the bearing below 80°C [176°F]. A dry gas seal was used so that there is zero leakage. Furthermore, some analysis of hydraulics characteristics, temperature field, thermal stress, and strain was performed to research the pump’s performance, and then the temperature field and the hydraulics were measured to validate the analysis results. The results show that the hydraulics, thermal stress, and strain meet the design value very well. The pump has been successfully operated on a LiF-NaF-KF test loop for over 250 hr. at temperatures of 500°C [932°F] to 600°C [1112°F], speeds of 1050 to 1450rpm, and flows of 15 m3/h [66 gpm] to 25 m3/h [110 gpm]. Paper published with permission.
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Akbari, M. H., S. A. Asaee, and R. Roohi. "Modeling of a Micro-Channel Water-Gas Shift Reactor." In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30241.
Повний текст джерелаАнотація:
Hydrogen purification through water-gas shift (WGS) is a favored option in fuel processing for hydrogen fuel cells. A three-dimensional single channel model is developed to simulate the behavior of a water-gas shift micro reactor. The flow regime is assumed to be steady and laminar; furthermore, it is presumed that the walls are isothermal. A water-gas shift reaction rate model is utilized to simulate the surface reaction on Pt/TiO2 catalyst. The gas feed composition is taken as the efflux of a typical auto-thermal reforming (ATR) reactor. A parametric study is conducted to investigate the effect of gas feed temperature, gas space velocity and channel length on water-gas shift micro reactor performance. The study resulted in an optimum water-gas shift micro reactor design. It should be noted that a water-gas shift micro reactor is an essential part of a reactor train to remove carbon monoxide from a hydrogen rich mixture. Such a mixture can be used as fuel for a PEM fuel cell in portable devices. The results of these simulations revealed that the optimum reactor consists of a square cross section channel with 100 μm hydraulic diameter, 20 mm length, space velocity of 1000 h−1 and gas feed temperature of 270°C. The carbon monoxide mole fraction in the efflux is in a range suitable for a typical preferential oxidation (PROX) reactor.
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Bilik, Vladimir. "Automatic Measurement of Magnetron Rieke Diagrams." In Ampere 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9782.
Повний текст джерелаАнотація:
A Rieke diagram [1] is a magnetron characteristic that visualizes the dependence of the generated frequency fg and the net delivered power PL on the load reflection coefficient GR. GR is defined in a specific magnetron-to-waveguide coupling structure called the standard or reference launcher (Fig. 1). The diagram is plotted as a family of isolines of constant fg and of constant PL in the polar diagram of GR. Rieke diagrams are essential in the design of applications without isolators, such as domestic or professional microwave ovens. Constructing Rieke diagrams is tedious, time-consuming and equipment-demanding [2], [3], preventing systematic studies of their dependence on operating conditions, such as anode voltage and its ripple, filament current, mounting repeatability, etc. We have devised a procedure, centering around a high-power automatic impedance matching device (autotuner), which enables fully automatic measurement and plotting of the stated dependences. A block diagram of the setup is shown in Fig. 1. The autotuner, when terminated in a match (waterload), can accomplish a task inverse to impedance matching: realizing any desired reflection coefficient GR. The measurement consists of stepping through a grid of n suitably chosen reflection coefficients GR = xR + jyR, covering a desired area of the polar diagram. Each GR is measured accurately by the autotuner, along with the corresponding fg and PL. Thus, raw data for constructing a Rieke diagram are obtained, the data consisting of a collection of n points {GR, fg, PL}i, i = 1…n, with GR, in general, irregularly scattered in the complex plane. A dedicated MATLAB routine then reads the data, sorts them out to create tabulated functions fg = f(xR, yR), PL = f(xR, yR), approximates these by a 2D spline, and uses the splines to plot smoothed isocontours for chosen constant values of fg and PL, completing thus the desired Rieke diagram construction. We will present details of this procedure as well as real-life examples. Fig. 1. Rieke diagram measurement setup. References Meredith, R. J., Engineers' Handbook of Industrial Microwave Heating, London: The IEE, 1998, 250–270. Takahashi, H., I. Namba, K. Akiyama, J. Microwave Power, 1979, 14, 261–267.Yixue, W., Z. Zhaotang, Proc. ICMMT'98, 1998, 795–798.
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Haase, Tina, Thu Ha Claudia Vuong, and Julia C Arlinghaus. "A case stucy on technology selection and didactical design for immersive learning and dialog spaces." In 15th International Conference on Applied Human Factors and Ergonomics (AHFE 2024). AHFE International, 2024. http://dx.doi.org/10.54941/ahfe1005385.
Повний текст джерелаАнотація:
Increasingly automated work environments lead to changes in the tasks and activities of humans in these work systems. On the one hand, activities have an increasingly controlling and monitoring character (Dregger et al. 2018) and, on the other hand, require rapid and competent human intervention in case of errors. On the other hand, there is a lack of learning opportunities to build up the necessary knowledge and experience, a phenomenon known as the ironies of automation. (Bainbridge 1983)Learning processes are therefore increasingly being transferred to virtual worlds. Learning situations that are rare, dangerous or difficult to access in practice can also be simulated here. When designing virtual learning applications, the main focus is usually on technical feasibility, while the didactic design of the learning content and the learning setting tend to be neglected. This also explains why many lighthouse projects are still being created, but are not successfully established in practice. A systematic approach to technology selection and design is required. (Haase et al. 2020)The Elbedome is a mixed-reality laboratory for the large-scale presentation of interactive visualizations on a 360° panorama and floor projection surface. It enables the collaborative reception, design and discussion of learning content in a hybrid setting. Compared to virtual reality glasses, the Elbedome allows a number of people to come together physically and simultaneously in an immersive learning and dialog space (Keller & Haase 2019).The submitted paper presents the unique large-scale projection system "Elbedome" and uses selected examples to underline the special features of this technology compared to common solutions such as mobile devices or VR glasses. In particular, the special potential of the Elbedome for collaborative learning processes as well as participatory design and decision-making processes of interdisciplinary stakeholders is highlighted. In addition, the article provides insights into the scalability of the technology, which is essential for the successful use of such a solution (Scavarelli et al. 2021), and makes recommendations for practical use by various target groups based on systematic criteria.References:Bainbridge, L. (1983). Ironies of automation. In Analysis, design and evaluation of man–machine systems (pp. 129-135). Pergamon.Dregger, J., Niehaus, J., Ittermann, P., Hirsch-Kreinsen, H., & Ten Hompel, M. (2018). Challenges for the future of industrial labor in manufacturing and logistics using the example of order picking systems. Procedia cirp, 67, 140-143.Haase, T., Radde, J., Keller, A., Berndt, D., & Dick, M. (2020). Integrated Learning and Assistive Systems for Manual Work in Production-Proposal for a Systematic Approach to Technology Selection and Design. In International Conference on Applied Human Factors and Ergonomics (pp. 853-859). Springer, Cham.Keller, A., & Haase, T. (2019). Lernen und kreativ planen in einem 360-Projektionsraum. In: Digitalisierung und Fachkräftesicherung: Herausforderung für die gewerblich-technischen Wissenschaften und ihre Didaktiken, 53, 63.Scavarelli, A., Arya, A., & Teather, R. J. (2021). Virtual reality and augmented reality in social learning spaces: a literature review. Virtual Reality, 25, 257-277.
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Nie, Jianhu, Yitung Chen, Robert F. Boehm, and Hsuan-Tsung Hsieh. "Parametric Study of Turbulent Separated Convection Flow Over a Backward-Facing Step in a Duct." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37315.
Повний текст джерелаАнотація:
Simulations of turbulent convection flow adjacent to a two dimensional backward-facing step are presented to explore the effects of step height, step inclination angle, a mounted rib and Prandtl number on velocity field and heat transfer. Reynolds number and duct’s height downstream from the step are kept constant at Re0 = 28000 and H = 0.19m, respectively. Uniform and constant heat flux of qw = 270W/m2 is specified at the stepped wall downstream from the step, while other walls are treated as adiabatic. The selection of the values for these parameters is motivated by the fact that measurements are available for this geometry and they can be used to validate the flow and heat transfer simulation code. The simulated results compare very well the measurements. The primary and secondary recirculation regions increase in size as the step height increases. The friction coefficient becomes smaller in magnitude with the increase of the step height. The peak Stanton number becomes smaller as the step height increases. The reattachment location becomes longer as the step inclination angle increases. With increase of the step inclination angle, the secondary recirculation region disappears. The peak friction coefficient inside the primary recirculation region becomes smaller as the step inclination angle decreases. Installation of a baffle on the upper wall causes the primary recirculation region to become smaller. The Stanton number decreases as the Prandtl number increases.
Звіти організацій з теми "2017 h-270"
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O'Connell, Kelly, David Burdick, Melissa Vaccarino, Colin Lock, Greg Zimmerman, and Yakuta Bhagat. Coral species inventory at War in the Pacific National Historical Park: Final report. National Park Service, 2024. http://dx.doi.org/10.36967/2302040.
Повний текст джерелаАнотація:
The War in the Pacific National Historical Park (WAPA), a protected area managed by the National Park Service (NPS), was established "to commemorate the bravery and sacrifice of those participating in the campaigns of the Pacific Theater of World War II and to conserve and interpret outstanding natural, scenic, and historic values on the island of Guam." Coral reef systems present in the park represent a vital element of Guam?s cultural, traditional, and economical heritage, and as such, are precious and in need of conservation. To facilitate the management of these resources, NPS determined that a scleractinian (stony coral) species survey was necessary to establish a baseline for existing coral communities and other important factors for conservation. EnviroScience, Inc. performed a survey of stony coral species, coral habitat, and current evidence of stressors at WAPA?s H?gat and Asan Units in 2022. This report summarizes these findings from a management perspective and compares its findings to previous survey data from 1977 and 1999 (Eldridge et al. 1977; Amesbury et al. 1999). WAPA is located on the tropical island of Guam, located on the west-central coast of the island, and encompasses 2,037 acres. Underwater resources are a significant component of the park, as 1,002 acres consists of water acres. The park is comprised of seven units, of which two of these, the H?gat and Asan Beach Units, include all the oceanic water acres for the park. The H?gat Beach Unit (local spelling, formerly known as ?Agat?) is located at the south-west portion of the park and consists of 38 land acres and 557 water acres (NPS 2003). The Asan Beach Unit consists of 109 acres of land and 445 water acres (NPS 2003). A current baseline for existing coral communities and other important factors for conservation necessitates the need for up-to-date data on the location, presence, relative abundance, and present health of corals. Park managers need this updated data to determine where and how to best focus conservation priorities and identify restoration opportunities. Management actions in park reef areas informed by this inventory included identifying locations where there were: high rates of sedimentation; high coral biomass; rare or threatened species, with a priority given to species endemic to Guam and listed as ?threatened? under the U.S. Endangered Species Act (ESA; Acropora globiceps, A. retusa, A. speciosa, and Seriatopora aculeata); coral persistence and decline, disease and/or nuisance species, including the crown-of-thorns starfish (Acanthaster cf. solaris, ?COTS?) and the sponge Terpios hoshinota; and bleached areas. All work carried out was in accordance with the NPS statement of work (SOW) requirements, which involved a quantitative inventory using both new and pre-existing transects. The resulting transects totaled 61 (including the four from the 1999 study), each measuring 50 meters in length and distributed across depths of up to 50 feet. Divers took photo-quadrat samples covering an area of approximately 9 m?, encompassing 50 photo-quadrats of dimensions 0.50 m x 0.36 m (n=50). The collective area surveyed across all 61 transects amounted to ~549 m?. Additionally, a qualitative search was conducted to enhance documentation of coral species that have limited distribution and might not be captured by transects, along with identifying harmful species and stressors. Timed roving diver coral diversity surveys were carried out at a total of 20 sites occurring within the waters of WAPA, including eight sites at the H?gat unit and 12 sites at the Asan unit. The findings from this report reveal significant disparities in benthic cover compositions between H?gat and Asan units. The H?gat unit exhibits high abundances of turf algae and unconsolidated sediment while the Asan beach unit presents a different scenario, with hard coral as the dominant benthic cover, followed closely by crustose coralline algae (CCA). The Asan unit is also more difficult to access from shore or boat relative to H?gat which provides that unit some protection from human influences. The Asan beach unit's prevalence of hard coral, CCA, and colonizable substrate suggests a more favorable environment for reef growth and the potential benefits of maintaining robust coral cover in the area. These distinct differences in benthic communities highlight the contrasting ecological dynamics and habitats of the two study areas. Across both H?gat and Asan beach unit transects, a total of 56 hard coral species were recorded from 27 genera, with 44 species recorded from the H?gat unit and 48 species recorded from the Asan unit. Of the four historical transects surveyed in the Asan unit from 1999, three experienced declines in percent coral cover (17.38-78.72%), while the fourth had an increase (10.98%). During the timed roving diver coral diversity surveys, a total of 245 hard coral species, including 241 scleractinian coral species representing 49 genera and 4 non-scleractinian coral species representing 4 genera were recorded. Uncertainties related to coral identification, unresolved boundaries between morphospecies, differences in taxonomists' perspectives, and the rapidly evolving state of coral taxonomy have significant implications for species determinations during coral diversity surveys. While the recent surveys have provided valuable insights into coral diversity in WAPA waters, ongoing taxonomic research and collaboration among experts will be essential to obtain a more comprehensive and accurate understanding of coral biodiversity in the region. Of the several ESA coral species that were searched for among the H?gat and Asan beach units, Acropora retusa was the only coral species found among quantitative transects (n=2) and A. globiceps was observed during coral diversity surveys. Acropora speciosa, which was dominant in the upper seaward slopes in 1977, is now conspicuously absent from all the surveys conducted in 2022 (Eldredge et al., 1977). The disappearance and reduction of these once-dominant species underscores the urgency of implementing conservation measures to safeguard the delicate balance of Guam's coral reefs and preserve the diversity and ecological integrity of these invaluable marine ecosystems. Other formerly common or locally abundant species were infrequently encountered during the diversity surveys, including Acropora monticulosa, A. sp. ?obtusicaulis?, A. palmerae, Stylophora sp. ?mordax?, Montipora sp. ?pagoensis?, and Millepora dichotoma. Significant bleaching-associated mortality was recorded for these species, most of which are restricted to reef front/margin zones exposed to moderate-to-high levels of wave energy. Sedimentation was present in both H?gat and the Asan units, though it was more commonly encountered in H?gat transects. While significant portions of the reef area within the WAPA H?gat unit are in poor condition due to a variety of stressors, some areas still hosted notable coral communities, which should be a potential focus for park management to prevent further degradation. There is a need for more effective management of point source pollution concerns, particularly when subpar wastewater treatment or runoff from areas with potential pollution or sediment-laden water is flowing from nearby terrestrial environments. Future monitoring efforts should aim to establish a framework that facilitates a deeper understanding of potential point source pollution incidents. This would empower park managers to collaborate with adjacent communities, both within and outside of park boundaries, to mitigate the localized impacts of pollution (McCutcheon and McKenna, 2021). COTS were encountered during transect surveys as well as in coral diversity surveys. including along the upper reef front/reef margin at site Agat-CS-2. The frequency of these observations, particularly in the WAPA H?gat unit and where stress-susceptible corals are already uncommonly encountered, raise concern about the ability of the populations of these coral species to recover following acute disturbance events, and calls in to question the ability of some of these species to persist in WAPA waters, and in Guam?s waters more broadly. More frequent crown-of-thorns control efforts, even if only a handful of sea stars are removed during a single effort, may be required to prevent further loss to vulnerable species. There were several documented incidents of Terpios hoshinota covering large sections of branching coral in the reef flat along transects, but it is still unclear how detrimental this sponge is to the overall reef system. There is a concern that elevated levels of organic matter and nutrients in the water, such as those resulting from sewage discharge or stormwater runoff, could lead to increased Terpios populations (De Voogd et al. 2013). Consequently, it is important to track populations in known areas of sedimentation and poor water quality. The presence of unique species at single survey sites within the study areas underscores the ecological importance of certain locations. Some species are known to occur in other locations in Guam, while a few may be limited to specific sites within WAPA waters. These differences are likely influenced by environmental and biological factors such as poor water quality, severe heat stress events, chronic predation by crown-of-thorns sea stars, disease, and reduced herbivore populations. These factors collectively shape the condition of the benthic community, leading to variations in species distribution and abundance across the study sites. Documenting coral stress and identifying potentially harmful species allows for proactive management strategies to prevent the establishment of nuisance or detrimental species while populations are still manageable. Updated data on the location, presence, relative abundance, and health of corals is essential for park managers to prioritize conservation efforts and identify restoration opportunities effectively. Observations from this report raise concerns about the health and resilience of coral ecosystems in the H?gat unit and emphasize the need for knowledge of local factors that shape benthic community structure. Understanding the drivers responsible for these variations is crucial for effective conservation and management strategies to preserve the ecological balance and overall health of coral reefs in both units. Continued monitoring efforts will be critical in assessing long-term trends and changes in benthic cover and enabling adaptive management approaches to safeguard these valuable marine ecosystems in the face of ongoing environmental challenges.