“A High Place Is No Better Than a Low Place”: The City in the Making of Modern China

Author(s):  
Strand David
Keyword(s):  
The City ◽  
Author(s):  
Yiying Pan

Abstract This article investigates the collective responsibility organizations among boatmen in nineteenth-century Chongqing, when the city became one of the most important metropolises on the southwest Qing frontier. It also introduces two successive turning points in self-organization that were associated with two different classes of boatmen – skippers and sailors. First, in 1803, skippers gained the authority to institutionalize their organizations through their negotiations with the local state regarding official services and service fees. Second, when similar service and fiscal tensions emerged between skippers and sailors in the mid-nineteenth century, the skippers facilitated and supervised the institutionalization of collective responsibility organizations that were run by the sailors themselves. By contextualizing this expansion of collective responsibility organizations within the multilayered interactions between skippers and sailors, this article proposes that the perspective of interclass networks is crucial for deepening the study of state−society interactions, the capital−labor relationship, as well as the tension between imperial integration and regional diversity in early modern China.


2013 ◽  
Vol 10 (2) ◽  
pp. 24-31
Author(s):  
Saša I. Mašić

AbstractThe aim of this paper is to determine operating performance of hotel companies in Serbia. The analysis was conducted on a sample that included approximately 31.35% of the total available hotel capacity in Serbia for the period from 2004 to 2011. The sample was designed to be representative of the hotel distribution by territory and category. Business performance of hotel companies was analyzed using TREVPAR and GOPPAR indicators both at the national level, for tourism clusters and the largest Serbian cities. The results show that hotel companies in Serbia, on average, achieved low TREVPAR and GOPPAR values. In 2011, the average TREVPAR of companies in Serbia was 28 EUR, and GOPPAR approximately 3.7 EUR. The study registered a significant decline in the value of these indicators for the period from 2008 to 2011, primarily as a result of the economic crisis. Results significantly better than the national average were achieved by hotel companies from Belgrade that had a mean TREVPAR value of 46.2 EUR and GOPPAR value of 8.6 EUR. During the analyzed period, the largest increase in the value of the analyzed indicators was registered in the city of Kragujevac as a result of significant investments made by the car manufacturer “Fiat” and its sub-contractors. These investments have led to a significant increase in the number of foreign tourist arrivals and consequently to an increase in business performance of hotel companies in Kragujevac.


2020 ◽  
Vol 12 (6) ◽  
pp. 2121
Author(s):  
Rosiberto Salustiano Silva Junior ◽  
Bruno César Teixeira Cardoso ◽  
Hugo Cainã Ferreira Monteiro ◽  
Ewerton Hallan de Lima Silva

Sendo as diferentes atividades econômicas fortemente influenciadas pela condição do tempo, faz-se necessário antever com dias de antecedência a situação meteorológica favorável ou não para o cotidiano da sociedade. E os modelos atmosféricos são ferramentas amplamente utilizados para avaliar o estado futuro da atmosfera, neste contexto, avaliar a precisão das previsões realizadas por estas ferramentas, tem sido cada fez mais recorrente. Neste trabalho foi utilizado o modelo atmosférico WRF (Weather Research and Forecasting) para realizar previsões diárias com duração de 72h, durante o período de 10 a 19 de julho de 2017 para a cidade de Maceió/AL. Para validar as previsões foram utilizados os dados observados da estação meteorológica automática do INMET (Instituto Nacional de Meteorologia). Para este estudo também foi proposto a atualização da topografia e uso do solo da área de estudo em questão, que gerou melhorias nas comparações realizadas para todas as variáveis analisadas, em destaque a previsão da variável pressão atmosférica, quando atualizada a topografia houve sensíveis melhorias nos indicadores estatísticos em comparação aos demais testes que não contaram com mesma atualização. Além disso, as análises estatísticas e os gráficos apresentados comprovam que o modelo previu melhor para 24h do que para 48h e nesta sequência melhor que 72h, ou seja, existiu a depreciação das previsões com o aumento da duração das previsões. Study of the Efficiency of the Short-Term Numerical Forecast for the City of Maceió / Al, Using the WRF ModelA B S T R A C TThe different economic activities are strongly influenced by the condition of the weather, it is necessary to forecast with days in advance the meteorological situation favorable or not for the daily life of the society. The atmospheric models are tools widely used to assess the future state of the atmosphere, in this context, assess the accuracy of the forecasts made by these tools, has been each made more recurrent. In this work the atmospheric model WRF (Weather Research and Forecasting) was used to make daily forecasts with a duration of 72h during the period from July 10 to 19, 2017 for the city of Maceió / AL, to validate the forecasts were used the observed data of the INMET (National Meteorological Institute) automatic weather station. For this study it was also proposed to update the topography and land user of the study area, which generated improvements in the comparisons made for all variables analyzed, in particular the prediction of the variable atmospheric pressure, when updated the topography there were sensible improvements in statistical indicators compared to the other tests that did not have the same update. In addition, the statistical analyzes and the graphs presented show that the model predicted better for 24h than for 48h and in this sequence better than 72h, that is, there was depreciation of the forecasts with the increase of the forecast duration.Keywords: Weather Forecast, Atmospheric Model, Topography, Land User.


2021 ◽  
Vol 331 ◽  
pp. 06006
Author(s):  
Yossyafra ◽  
Anyta Ramadhani ◽  
Vina Gusman ◽  
Monica Herimarni

The COVID-19 pandemic has changed the world in various sectors and human activities. Limiting human activity and mobility also has an impact on transportation and traffic. This study aims to calculate the capacity and performance of roads under normal pandemic conditions before PSBB (Large-Scale Social Restrictions) in April 2020 and New Normal in July 2002, as well as predict traffic conditions if the Tsunami disaster hits the city during both periods. Tsunami Evacuation roads in Padang City were selected for analysis. The Indonesian Road Capacity Manual 1997 on urban roads is used as a reference for analyzing road performance indicators. The results showed that; road performance during the PSBB period was better than the New Normal period. The effect of volume and side traffic disturbance factors in the New Normal period makes a significant decrease in performance. Through prediction simulations, if a Tsunami occurs in the two study periods, the analyzed roads can relatively serve evacuation movements. However, the capacity needs to be increased for normal conditions.


2017 ◽  
Vol 26 (1) ◽  
pp. 30-49 ◽  
Author(s):  
Gregory A. Houseman

Istanbul and Bucharest are major European cities that face a continuing threat of large earthquakes. The geological contexts for these two case studies enable us to understand the nature of the threat and to predict more precisely the consequences of future earthquakes, although we remain unable to predict the time of those events with any precision better than multi-decadal. These two cities face contrasting threats: Istanbul is located on a major geological boundary, the North Anatolian Fault, which separates a westward moving Anatolia from the stable European landmass. Bucharest is located within the stable European continent, but large-scale mass movements in the upper mantle beneath the lithosphere cause relatively frequent large earthquakes that represent a serious threat to the city and surrounding regions.


1994 ◽  
Vol 21 (1) ◽  
pp. 173-209 ◽  
Author(s):  
John J. Kim ◽  
Gary F. Marcus ◽  
Steven Pinker ◽  
Michelle Hollander ◽  
Marie Coppola

ABSTRACTWhat is the input to the mental System that computes inflected forms likewalked, came, dogs, andmen? Recent connectionist models feed a word's phonological features into a single network, allowing it to generalize both regular and irregular phonological patterns, likestop-stopped, step-steppedandfling-flung, cling-clung. But for adults, phonological input is insufficient: verbs derived from nouns likering the cityalways have regular past tense forms (ringed), even if they are phonologically identical to irregular verbs (ring the bell). Similarly, nouns based on names, liketwo Mickey Mouses, and compounds based on possessing rather than being their root morpheme, such astwo sabertooths, take regular plurals, even when they are homophonous with irregular nouns likemiceandteeth. In four experiments, testing 70 three- to ten-year-old children, we found that children are sensitive to such nonphonological information: they were more likely to produce regular inflected forms for forms liketo ring(‘to put a ring on’) andsnaggletooth(a kind of animal doll with big teeth) than for their homophonous irregular counterparts, even when these counterparts were also extended in meaning. Children's inflectional Systems thus seem to be like adults': irregular forms are tied to the lexicon but regular forms are computed by a default rule, and words are represented as morphological tree structures reflecting their derivation from basic word roots. Such structures, which determine how novel complex words are derived and interpreted, also govern whether words with irregular sound patterns will be regularized: a word can be irregular only if its structure contains an irregular root in ‘head’ position, allowing the lexically stored irregular information to percolate up to apply to the word as a whole. In all other cases, the inflected form is computed by a default regular rule. This proposal fits the facts better than alternatives appealing to ambiguity reduction or semantic similarity to a word's central sense. The results, together with an analysis of adult speech to children, suggest that morphological structure and a distinction between mechanisms for regular and irregular inflection may be inherent to the design of children's language Systems.


Author(s):  
Billie Louise (Beezy) Bentzen ◽  
Alan C. Scott ◽  
Linda Myers

The City and County of San Francisco sponsored research to identify a delineator for separated bicycle lanes at sidewalk level that is at least as detectable as truncated-dome detectable warning surface (DWS) by pedestrians with visual impairments, and that is not a barrier to pedestrians with mobility impairments. Tested as potential delineators were a 12-in. wide continuous raised trapezoid (0.75 in. high), and 12- and 24-in. wide installations of relatively wide flat-top bars (FTBs) and of a “corduroy” surface of narrower bars spaced more closely together (both 0.2 in. high). Thirty-one visually-impaired participants detected all five surfaces in addition to DWS, a total of six times each, from 90° and 25° approaches, with mean detection accuracies better than 90% for all surfaces (no significant differences). The long white cane intruded into the cycle track significantly less frequently with 24-in. wide surfaces. In a counterbalanced manner, participants also briefly stepped onto each surface eight times, each time identifying it as “domes,”“bars,” or “trapezoid.” They identified the trapezoid significantly better (mean rate of correct identification = 98.8%) than all other surfaces. A majority of participants with vision disabilities preferred the trapezoid. Thirty participants with a variety of mobility impairments, using a variety of aids, crossed each surface four times with little significant difference from the DWS in effort, instability, and discomfort or pain. No surface was found to be a barrier to crossing. The trapezoidal surface was recommended as the delineator, although the 24-in. FTBs also performed very well.


Atmosphere ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 42 ◽  
Author(s):  
Wei Sun ◽  
Zhihong Liu ◽  
Yang Zhang ◽  
Weixin Xu ◽  
Xiaotong Lv ◽  
...  

The expansion of urban areas and the increase in the number of buildings and urbanization characteristics, such as roads, affect the meteorological environment in urban areas, resulting in weakened pollutant dispersion. First, this paper uses GIS (geographic information system) spatial analysis technology and landscape ecology analysis methods to analyze the dynamic changes in land cover and landscape patterns in Chengdu as a result of urban development. Second, the most appropriate WRF (Weather Research and Forecasting) model parameterization scheme is selected and screened. Land-use data from different development stages in the city are included in the model, and the wind speed and temperature results simulated using new and old land-use data (1980 and 2015) are evaluated and compared. Finally, the results of the numerical simulations by the WRF-Chem air quality model using new and old land-use data are coupled with 0.25° × 0.25°-resolution MEIC (Multi-resolution Emission Inventory for China) emission source data from Tsinghua University. The results of the sensitivity experiments using the WRF-Chem model for the city under different development conditions and during different periods are discussed. The meteorological conditions and pollution sources remained unchanged as the land-use data changed, which revealed the impact of urban land-use changes on the simulation results of PM2.5 atmospheric pollutants. The results show the following. (1) From 1980 to 2015, the land-use changes in Chengdu were obvious, and cultivated land exhibited the greatest changes, followed by forestland. Under the influence of urban land-use dynamics and human activities, both the richness and evenness of the landscape in Chengdu increased. (2) The microphysical scheme WSM3 (WRF Single–Moment 3 class) and land-surface scheme SLAB (5-layer diffusion scheme) were the most suitable for simulating temperatures and wind speeds in the WRF model. The wind speed and temperature simulation results using the 2015 land-use data were better than those using the 1980 land-use data when assessed according to the coincidence index and correlation coefficient. (3) The WRF-Chem simulation results obtained for PM2.5 using the 2015 land-use data were better than those obtained using the 1980 land-use data in terms of the correlation coefficient and standard deviation. The concentration of PM2.5 in urban areas was higher than that in the suburbs, and the concentration of PM2.5 was lower on Longquan Mountain in Chengdu than in the surrounding areas.


2020 ◽  
Vol 39 (01) ◽  
pp. 001-004
Author(s):  
Luiza Maria Dias Abboud Hanna ◽  
Sarah Eloisa Biguelini ◽  
Francisco Alves de Araujo Junior ◽  
Anderson Matsubara ◽  
Pedro Helo dos Santos Neto

Abstract Objective To analyze the population and the early mortality rate (up to thirty days) of patients victim of spontaneous subarachnoid hemorrhage (SAH) according to the Hunt-Hess clinical scale and the Fisher and modified Fisher radiological scales. Materials and Methods We analyzed 46 medical records and skull computed tomography (CT) scans of patients with spontaneous SAH admitted between February 2014 and December 2017 at Hospital Universitário Evangélico Mackenzie, in the city of Curitiba, state of Paraná, Brazil. The method of the study was exploratory-descriptive, transversal and retrospective, with a quantitative approach. We analyzed epidemiological (gender, age), clinical (life habits, pathologies, Glasgow coma scale and Hunt-Hess scale) and radiological (Fisher and modified Fisher scales) variables, and the Hunt-Hess and the Fisher scales were correlated with risk of death. The data was submitted to statistical analysis considering values of p < 0.05. Result There was a higher prevalence of spontaneous SAH among women (69.5%), as well as among patients aged between 51 and 60 years (34.7%). Regarding the grades on the scales, there was higher prevalence of Fisher 4, Modified Fisher 4 and Hunt-Hess 2. Evolution to death was higher among women (76.4%) and patients aged between 61 and 70 years (35,2%). Conclusion Mortality was higher among patients classified as Fisher 3, Modified Fisher 4 and Hunt-Hess ≥ 3. The Fisher scale is better than the modified Fisher scale to assess the risk of mortality.


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