Literatura científica selecionada sobre o tema "SwCWa"

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Artigos de revistas sobre o assunto "SwCWa"

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Xiao, Hui-Hui, Yu-Xin Zhu, Lu Lu, Li-Ping Zhou, Christina Chui-Wa Poon, Chi-On Chan, Li-Jing Wang et al. "The Lignan-Rich Fraction from Sambucus williamsii Hance Exerts Bone Protective Effects via Altering Circulating Serotonin and Gut Microbiota in Rats". Nutrients 14, n.º 22 (8 de novembro de 2022): 4718. http://dx.doi.org/10.3390/nu14224718.

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Our previous study revealed that the bone anabolic effects of the lignan-rich fraction (SWCA) from Sambucus williamsii Hance was involved in modulating the metabolism of tryptophan in vivo and inhibiting serotonin (5-HT) synthesis in vitro. This study aimed to determine how SWCA modulates bone metabolism via serotonin in vivo. The effects of SWCA were evaluated by using 4-month-old Sprague-Dawley (SD) ovariectomized rats. The serum levels of 5-HT and kynurenine, the protein expressions of tryptophan hydroxylase 1 (TPH-1) and TPH-2, the genes and proteins related to the 5-HT signaling pathway as well as gut microbiota composition were determined. SWCA treatment alleviated bone loss and decreased serum levels of serotonin, which was negatively related to bone mineral density (BMD) in rats. It suppressed the protein expression of TPH-1 in the colon, and reversed the gene and protein expressions of FOXO1 and ATF4 in the femur in OVX rats, while it did not affect the TPH-2 protein expression in the cortex. SWCA treatment escalated the relative abundance of Antinobacteria and modulated several genera relating to BMD. These findings verified that the bone protective effects of lignans were mediated by serotonin, and provided evidence that lignans might be a good source of TPH-1 inhibitors.
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Feng, Juan, Jianping Li e Yun Li. "A Monsoon-Like Southwest Australian Circulation and Its Relation with Rainfall in Southwest Western Australia". Journal of Climate 23, n.º 6 (15 de março de 2010): 1334–53. http://dx.doi.org/10.1175/2009jcli2837.1.

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Abstract Using the NCEP–NCAR reanalysis, the 40-yr ECMWF Re-Analysis (ERA-40), and precipitation data from the Climate Prediction Center (CPC) Merged Analysis of Precipitation (CMAP) and the Australian Bureau of Meteorology, the variability and circulation features influencing southwest Western Australia (SWWA) winter rainfall are investigated. It is found that the climate of southwest Australia bears a strong seasonality in the annual cycle and exhibits a monsoon-like atmospheric circulation, which is called the southwest Australian circulation (SWAC) because of its several distinct features characterizing a monsoonal circulation: the seasonal reversal of winds, alternate wet and dry seasons, and an evident land–sea thermal contrast. The seasonal march of the SWAC in extended winter (May–October) is demonstrated by pentad data. An index based on the dynamics’ normalized seasonality was introduced to describe the behavior and variation of the winter SWAC. It is found that the winter rainfall over SWWA has a significant positive correlation with the SWAC index in both early (May–July) and late (August–October) winter. In weaker winter SWAC years, there is an anticyclonic anomaly over the southern Indian Ocean resulting in weaker westerlies and northerlies, which are not favorable for more rainfall over SWWA, and the opposite combination is true in the stronger winter SWAC years. The SWAC explains not only a large portion of the interannual variability of SWWA rainfall in both early and late winter but also the long-term drying trend over SWWA in early winter. The well-coupled SWAC–SWWA rainfall relationship seems to be largely independent of the well-known effects of large-scale atmospheric circulations such as the southern annular mode (SAM), El Niño–Southern Oscillation (ENSO), Indian Ocean dipole (IOD), and ENSO Modoki (EM). The result offers qualified support for the argument that the monsoon-like circulation may contribute to the rainfall decline in early winter over SWWA. The external forcing of the SWAC is also explored in this study.
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Cai, Shaowei, e Kaile Su. "Configuration Checking with Aspiration in Local Search for SAT". Proceedings of the AAAI Conference on Artificial Intelligence 26, n.º 1 (20 de setembro de 2021): 434–40. http://dx.doi.org/10.1609/aaai.v26i1.8133.

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An interesting strategy called configuration checking (CC) was recently proposed to handle the cycling problem in local search for Minimum Vertex Cover. A natural question is whether this CC strategy also works for SAT. The direct application of CC did not result in stochastic local search (SLS) algorithms that can compete with the current best SLS algorithms for SAT. In this paper, we propose a new heuristic based on CC for SLS algorithms for SAT, which is called configuration checking with aspiration (CCA). It is used to develop a new SLS algorithm called Swcca. The experiments on random 3-SAT instances show that Swcca significantly outperforms Sparrow2011, the winner of the random satisfiable category of the SAT Competition 2011, which is considered to be the best local search solver for random 3-SAT instances. Moreover, the experiments on structured instances show that Swcca is competitive with Sattime, the best local search solver for the crafted benchmark in the SAT Competition 2011.
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Zheng, Yaowen, Lenneke M. Jong, Steven J. Phipps, Jason L. Roberts, Andrew D. Moy, Mark A. J. Curran e Tas D. van Ommen. "Extending and understanding the South West Western Australian rainfall record using a snowfall reconstruction from Law Dome, East Antarctica". Climate of the Past 17, n.º 5 (1 de outubro de 2021): 1973–87. http://dx.doi.org/10.5194/cp-17-1973-2021.

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Abstract. South West Western Australia (SWWA) has experienced a prolonged reduction in rainfall in recent decades, with associated reductions in regional water supply and residential and agricultural impacts. The cause of the reduction has been widely considered but remains unclear. The relatively short length of the instrumental record limits long-term investigation. A previous proxy-based study used a statistically negative correlation between SWWA rainfall and snowfall from the Dome Summit South (DSS) ice core drilling site, Law Dome, East Antarctica, and concluded that the anomaly of recent decades is unprecedented over the ∼ 750-year period of the study (1250–2004 CE). Here, we extend the snow accumulation record to cover the period from 22 BCE to 2015 CE and derive a rainfall reconstruction over this extended period. This extended record confirms that the recent anomaly is unique in the period since 1250 CE and unusual over the full ∼ 2000-year period, with just two other earlier droughts of similar duration and intensity. The reconstruction shows that SWWA rainfall started to decrease around 1971 CE. Ensembles of climate model simulations are used to investigate the potential roles of natural variability and external climate drivers in explaining changes in SWWA rainfall. We find that anthropogenic greenhouse gases are likely to have contributed towards the SWWA rainfall drying trend after 1971 CE. However, natural variability may also have played a role in determining the timing and magnitude of the reduction in rainfall.
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Jilani, Md Shariful Alam, Tang Thean Hock, Sraboni Mazumder, Fahmida Rahman, Md Mohiuddin, Chowdhury Rafiqul Ahsan e Jalaluddin Ashraful Haq. "Detection of antibodies to recombinant truncated flagellin and sonicated whole cell antigen of Burkholderia pseudomallei in acute melioidosis and in healthy Bangladeshi individuals". IMC Journal of Medical Science 14, n.º 1 (9 de junho de 2020): 47–52. http://dx.doi.org/10.3329/imcjms.v14i1.47455.

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Background and objectives: Several types of Burkholderia pseudomallei antigens have been used to determine the antibody response in acute and asymptomatic cases. In the present study, we have detected immunoglobulin G (IgG) antibody to recombinant truncated flagellin antigen (RTFA) of B. pseudomallei in the sera of acute melioidosis cases and healthy individuals from melioidosis endemic areas of Bangladesh by indirect enzyme-linked immunosorbent assay (ELISA). In parallel, IgG antibody to sonicated whole cell antigen (SWCA) of B. pseudomallei was determined to compare with anti-RTFA antibody. Methodology: Serum samples from culture confirmed melioidosis cases and from healthy individuals aged 21 years and above residing in melioidosis endemic rural areas were included in the study. Serum IgG antibody to RTFA and SWCA of B. pseudomallei was determined by indirect ELISA. Results: Out of 8 culture confirmed acute melioidosis cases, 7 (87.5%) and 8 (100%) were positive for anti-B. pseudomallei IgG antibodies by RTFA and SWCA methods respectively. Among 361 healthy individuals, the rate of seropositivity by RTFA-ELISA was significantly less than that of SWCA-ELISA (16.1% versus 26.8%; p = 0.001). The mean optical density (OD) of RTFA-ELISA of positive cases was significantly less than that of SWCA-ELISA in both melioidosis and healthy individuals (0.79±0.11 versus 2.4±0.08, p = 0.0001; 0.67±0.01 versus 1.27±0.02, p = 0.0001). The sensitivity and specificity of RTFA-ELISA were 88.9% and 100% respectively. Conclusion: Findings of the study suggest that multiple or combination of antigens should be used to study the seroprevalence of B. pseudomallei infection in a community. Also, prospective study is necessary to find out the duration of persistence of antibodies to different antigenic components of B. pseudomallei after exposure. Ibrahim Med. Coll. J. 2020; 14(1): 47-52
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England, Matthew H., Caroline C. Ummenhofer e Agus Santoso. "Interannual Rainfall Extremes over Southwest Western Australia Linked to Indian Ocean Climate Variability". Journal of Climate 19, n.º 10 (15 de maio de 2006): 1948–69. http://dx.doi.org/10.1175/jcli3700.1.

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Abstract Interannual rainfall extremes over southwest Western Australia (SWWA) are examined using observations, reanalysis data, and a long-term natural integration of the global coupled climate system. The authors reveal a characteristic dipole pattern of Indian Ocean sea surface temperature (SST) anomalies during extreme rainfall years, remarkably consistent between the reanalysis fields and the coupled climate model but different from most previous definitions of SST dipoles in the region. In particular, the dipole exhibits peak amplitudes in the eastern Indian Ocean adjacent to the west coast of Australia. During dry years, anomalously cool waters appear in the tropical/subtropical eastern Indian Ocean, adjacent to a region of unusually warm water in the subtropics off SWWA. This dipole of anomalous SST seesaws in sign between dry and wet years and appears to occur in phase with a large-scale reorganization of winds over the tropical/subtropical Indian Ocean. The wind field alters SST via anomalous Ekman transport in the tropical Indian Ocean and via anomalous air–sea heat fluxes in the subtropics. The winds also change the large-scale advection of moisture onto the SWWA coast. At the basin scale, the anomalous wind field can be interpreted as an acceleration (deceleration) of the Indian Ocean climatological mean anticyclone during dry (wet) years. In addition, dry (wet) years see a strengthening (weakening) and coinciding southward (northward) shift of the subpolar westerlies, which results in a similar southward (northward) shift of the rain-bearing fronts associated with the subpolar front. A link is also noted between extreme rainfall years and the Indian Ocean Dipole (IOD). Namely, in some years the IOD acts to reinforce the eastern tropical pole of SST described above, and to strengthen wind anomalies along the northern flank of the Indian Ocean anticyclone. In this manner, both tropical and extratropical processes in the Indian Ocean generate SST and wind anomalies off SWWA, which lead to moisture transport and rainfall extremes in the region. An analysis of the seasonal evolution of the climate extremes reveals a progressive amplification of anomalies in SST and atmospheric circulation toward a wintertime maximum, coinciding with the season of highest SWWA rainfall. The anomalies in SST can appear as early as the summertime months, however, which may have important implications for predictability of SWWA rainfall extremes.
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Li, Yun, Jianping Li e Juan Feng. "A Teleconnection between the Reduction of Rainfall in Southwest Western Australia and North China". Journal of Climate 25, n.º 24 (15 de dezembro de 2012): 8444–61. http://dx.doi.org/10.1175/jcli-d-11-00613.1.

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Abstract Rainfall in both southwest Western Australia (SWWA) and North China (NC) has been declining substantially since the mid-1960s, which has led to a series of droughts in both regions since then. Using observed rainfall datasets in China and Australia and the NCEP reanalysis dataset during 1951–2008, it is found that the decline of SWWA rainfall occurs in early austral winter [May–July (MJJ)] while the reduction of NC rainfall is in late boreal summer [July–September (JAS)]. The relationship between SWWA MJJ rainfall and NC JAS rainfall during 1951–2008 is then examined, and it is found that a significant link exists between these two rainfall series with a correlation of 0.43 and this link remains after the data are detrended. In particular, this relationship accounts for up to 62% variance on interdecadal time scales, and seems to be driven by the poleward shift of the southern subtropical high ridge (SSHR) and the northern subtropical high ridge (NSHR) over longitudes 110°–150°E. The poleward shift of the SSHR may induce an anomalous anticyclone centered near the south Australian coast, resulting in anomalous easterlies of dry air to SWWA, while the poleward shift of the NSHR is associated with an anomalous anticyclone in East Asia near NC causing anomalous northeasterlies of dry air to NC. The poleward shift of SSHR/NSHR may be linked to the warming sea surface temperatures (SSTs) in the tropical Indian-western Pacific. The results herein suggest that the poleward shifts of the SSHR and the NSHR instigated by the warming SSTs in the tropical Indian–western Pacific may have partially contributed to the rainfall reduction in both regions.
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Feng, Juan, Jianping Li e Yun Li. "Is There a Relationship between the SAM and Southwest Western Australian Winter Rainfall?" Journal of Climate 23, n.º 22 (15 de novembro de 2010): 6082–89. http://dx.doi.org/10.1175/2010jcli3667.1.

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Abstract Previous studies have raised the possibility that the recent decline in winter rainfall over southwest Western Australia (SWWA) is related to the concurrent upward trend in the southern annular mode (SAM). On the basis of an analysis of 60-yr (1948–2007) reanalysis and observed data, the authors suggest that the apparent inverse relationship between the SAM and SWWA winter rainfall (SWR) is caused by a single extreme year—1964. It is shown that both the negative and positive phases of the SAM have little impact on SWR in the case that data for 1964 are excluded from the analysis. In addition, for periods prior to and after 1964 in the case that data for 1964 are excluded, the apparent relationship between the SAM and SWR becomes insignificant, and the circulation anomalies with respect to SWR appear to be an SAM-like pattern for which the anomalies at high latitudes are not significant. The result indicates that the SAM does not significantly influence the winter rainfall over SWWA. Instead, the variation of SWR would be more closely linked to the variability in regional circulations.
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Philip, P., e B. Yu. "Temporal Variations in Rainfall Volume in the Southwest of Western Australia". Journal of Applied Meteorology and Climatology 60, n.º 1 (janeiro de 2021): 23–32. http://dx.doi.org/10.1175/jamc-d-20-0034.1.

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AbstractRainfall in the southwest of Western Australia (SWWA) has decreased significantly over recent decades. Previous studies documented this decrease in terms of the change in rainfall depth or decrease in the frequency of rainfall events for selected sites. Although rainfall volume is of vital importance to determine water resources availability for a given region, no study has yet been undertaken to examine the change in rainfall volume in SWWA. The aim of this study is to examine the spatiotemporal changes in rainfall volume and to attribute this change to the changes in wet area and rainfall depth. Gridded daily rainfall data at 0.05° resolution for the period from 1911 to 2018 were used for an area of 265 952 km2 in SWWA. For the whole region and most zones, rainfall volume decreased, which was mostly due to a decrease in the wet area, despite an increase in the mean rain depth. In the regions near the coast with mean annual rainfall ≥ 600 mm, 84% of the decrease in rainfall volume could be attributed to a decrease in the wet area, whereas the decrease in rainfall depth only played a minor role. The regions near the coast with a higher number of rain days showed a decreasing trend in wet area, and the regions farther inland with a lower number of rain days showed an increasing trend in wet area. On the coast, the rate of decrease in rainfall has been reduced, and heavy rainfall, in fact, has increased over the past 30 years, although there was no concurrent change in the southern annular mode (SAM). This suggests that the relationship between SAM and rainfall could have changed and that other climate drivers could also be responsible for the recent rainfall trend and variations in the coastal regions of SWWA.
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Frederiksen, Jorgen S., e Stacey L. Osbrough. "Tipping Points and Changes in Australian Climate and Extremes". Climate 10, n.º 5 (19 de maio de 2022): 73. http://dx.doi.org/10.3390/cli10050073.

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Systematic changes, since the beginning of the 20th century, in average and extreme Australian rainfall and temperatures indicate that Southern Australian climate has undergone regime transitions into a drier and warmer state. South-west Western Australia (SWWA) experienced the most dramatic drying trend with average streamflow into Perth dams, in the last decade, just 20% of that before the 1960s and extreme, decile 10, rainfall reduced to near zero. In south-eastern Australia (SEA) systematic decreases in average and extreme cool season rainfall became evident in the late 1990s with a halving of the area experiencing average decile 10 rainfall in the early 21st century compared with that for the 20th century. The shift in annual surface temperatures over SWWA and SEA, and indeed for Australia as a whole, has occurred primarily over the last 20 years with the percentage area experiencing extreme maximum temperatures in decile 10 increasing to an average of more than 45% since the start of the 21st century compared with less than 3% for the 20th century mean. Average maximum temperatures have also increased by circa 1 °C for SWWA and SEA over the last 20 years. The climate changes in rainfall an d temperatures are associated with atmospheric circulation shifts.
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Teses / dissertações sobre o assunto "SwCWa"

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Lin, Ru-Ping, e 林如萍. "An Adaptive Load Shedding Scheme Based on SWCA Data Stream Mining Algorithm". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30157804334343395006.

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Livros sobre o assunto "SwCWa"

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R, Meersman, Tari Zahir e HCI-SWWA (2003 : Catania, Sicily), eds. On the move to meaningful Internet systems 2003: OTM 2003 workshops : OTM confederated international workshops : HCI-SWWA, IPW, JTRES, WORM, WMS, and WSRM 2003, Catania, Sicily, November 3-7, 2003 : proceedings. New York: Springer-Verlag, 2003.

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Prehistory In West Prescott, Arizona (Swca Research Paper). University of Arizona Press, 2004.

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AnimasLa Plata Project, Volume III: Blue Mesa Excavations (Swca Anthroplolgical Research Papers). SWCA Environmental Consultants, 2007.

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Perry, Elizabeth M., e James M. Potter. Animas-La Plata Project, Volume II: Cultural Affiliation Study (Swca Anthropological Research Paper). SWCA Environmental Consultants, 2007.

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Potter, James M. Animas-La Plata Project: Cultural Resources Research and Sampling Design (Swca Anthropological Research Paper). University of Arizona Press, 2006.

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(Editor), David A. Phillips, e John A. Ware (Editor), eds. Culture and Environment in the American Southwest: Essays in Honor of Robert C. Euler (Swca Anthropological Research Paper). University of Arizona Press, 2003.

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Colorado River Basin Study, Final Report, Dale Pontius, Principal Investigator in conjunction with SWCA, Inc., Environmental Consultants Tucson, Arizona, August 1997. [S.l: s.n., 1997.

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(Editor), Robert Meersman, e Zahir Tari (Editor), eds. On The Move to Meaningful Internet Systems 2003: OTM 2003 Workshops: OTM Confederated International Workshops, HCI-SWWA, IPW, JTRES, WORM, WMS, and WRSM ... (Lecture Notes in Computer Science). Springer, 2004.

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Tari, Zahir. On the Move to Meaningful Internet Systems 2003 : OTM 2003 Workshops: OTM Confederated International Workshops, HCI-SWWA, IPW, JTRES, WORM, WMS, and WRSM 2003, Catania, Sicily, Italy, November 3-7, 2003, Proceedings. Springer London, Limited, 2003.

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Capítulos de livros sobre o assunto "SwCWa"

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Rahou, Meriem Ait, e Abderrahim Hasbi. "SWCA Secure Weighted Clusterhead Election in Mobile Ad Hoc Network". In Lecture Notes in Networks and Systems, 259–65. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33103-0_26.

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Atkinson, LaKela. "Practicing What We Preach: Anti-racist Approaches in SWCA". In Writing Centers and Racial Justice: A Guidebook for Critical Praxis, 237–47. Utah State University Press, 2023. http://dx.doi.org/10.7330/9781646424573.c014.

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Trabalhos de conferências sobre o assunto "SwCWa"

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Cassidy, Derek, John Healy e John Sheridan. "Transposing two optical wavelengths across SWCW and measuring response". In Integrated Photonics Research, Silicon and Nanophotonics. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/iprsn.2023.jtu4a.23.

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We create two separate self-written waveguides (SWW) within photopolymer material. The coupling of these two self-written waveguides into a self-written coupling waveguide (SWCW), which are produced through the convergence of two self-written waveguides SWWs.
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Cassidy, Derek, e John Sheridan. "Coupling Self-Written Waveguides within Photopolymer Material". In Digital Holography and Three-Dimensional Imaging. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/dh.2022.w2a.2.

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We create two separate self-written waveguides (SWW) within photopolymer material. The coupling of these two self-written waveguides into a self-written coupling waveguide (SWCW), which are produced through the convergence of two self-written waveguides SWWs.
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Zeng, Yingpei, Jiannong Cao, Shanqing Guo, Kai Yang e Li Xie. "SWCA: A Secure Weighted Clustering Algorithm in Wireless Ad Hoc Networks". In 2009 IEEE Wireless Communications and Networking Conference. IEEE, 2009. http://dx.doi.org/10.1109/wcnc.2009.4917979.

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