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2022 ◽  
Author(s):  
Attila Zsolnai ◽  
Adrienn Csókás ◽  
László Szabó ◽  
László Patkó ◽  
Sándor Csányi ◽  
...  

AbstractStudies of wild boar, Sus scrofa Linnaeus 1758, in urban and suburban areas of Budapest, Hungary, have indicated that these populations do not have continuous contact. Based on the assumption that the city has a discrete population, we hypothesized that the urban wild boar would differ genetically from those in suburban areas. Analysis of single-nucleotide polymorphism (SNP) data using the GeneSeek Genomic Profiler (GGP) Porcine 50 K system (Neogen, Scotland, UK) differentiated three populations: Buda (B) from the Western bank of the Danube; Buda Surrounding (BS); and Valkó (V) from the Eastern bank of the Danube. The coefficient of genetic differentiation (FST) for the B and BS populations was low. The inbreeding coefficients of the populations BS and V were close to zero, while population B had a high positive value reflecting the influence of founders and the inbreeding of the continuous urban population. The genome regions that were most differentiated between the B and BS populations were analyzed based on the FST values of the SNP markers using a mixed linear multi-locus model and BayeScan software. The most differentiated marker, WU_10.2_18_56278226, was found on chromosome 18. The surrounding region contained several candidate genes that could play important roles in adaptations related to human-induced stress. Two of these, encoding the adenylate cyclase 1 (ADCY1) and inhibin beta A chain precursor (INHBA) genes, were sequenced. While IHBA gene did not display variation, the allele distribution of the ADCY1 gene in the B population was significantly different from that of the BS population supporting the parapatric differentiation of wild boar.


Author(s):  
Angga Prasetiya

<p><em>The term suburban school emerged as a result of the polarization between schools located in cities and suburban areas. Negative stigma is often attached to suburban schools, with all their limitations.Therefore, the skills of the principal as a leader are highly demanded in school administration in order to create a golden generation in 2045. The eight values of Astha Brata's leadership are ideal values that must be possessed by a leader. The actualization of Astha Brata's leadership values by the principal in suburban schools is absolutely necessary, because of the peculiarities of the problem. This study describes the form of actualization of Astha Brata's values on the leadership management of the principal at a suburban school in Central Aceh. Data collection techniques come from written sources such as books, as well as scientific articles, as well as photos from documentation of school activities. The form of actualization is analyzed based on the problem and the solution to the problem is proven by school documentation in the form of photographs, so that an overview of the actualization of the value of Astha Brata's leadership in the leadership management of school principals in suburban schools can be comprehensively summarized.</em></p>


2021 ◽  
Author(s):  
Ibraheem Shayea ◽  
Marwan Azmi ◽  
Mustafa Ergen

<p>This paper analysis and investigate the performance of Mobile Broadband (MBB) cellular networks based on the drive tests for suburban areas (at four states) in Malaysia. The data were collected from three main national Mobile Network Operators (MNOs) by using unbranded Samsung Galaxy S6 smartphone handsets, while the period of data collection was between January and February. Two MBB services were considered which are the video streaming and web browsing. For each MNO, the performance data of one MBB service was collected through one a dedicated smartphone. One smartphone was used to browse three different webpages, and One smartphone was employed to stream two YouTube videos with two different resolutions. The study considered four MBB Key Performance Indicators (KPIs), namely: latency, coverage, speed and satisfaction. As per the results, the performance of Fourth Generation (4G) is found superior than that of Third Generation (3G) networks. For instance, a vMOS score of above 3.3 was achieved by 4G networks for MBB video-streaming service, while, score of below 2.6 was attained by 3G networks across all the four studied areas. In addition, it was observed that an enhancement factor of up to 2.86 and 2.83 in download speed was presented by 4G technology in case of video streaming and web page browsing respectively as compared to 3G technology. Examining the performance of current MBB networks is supportive before the deployment of the 5G network. The efficient development of 5G networks in Malaysia can be realized through these study findings, where the existing 4G infrastructures will contribute to supporting the 5G and 6G networks.</p>


2021 ◽  
Author(s):  
Ibraheem Shayea ◽  
Marwan Azmi ◽  
Mustafa Ergen

<p>This paper analysis and investigate the performance of Mobile Broadband (MBB) cellular networks based on the drive tests for suburban areas (at four states) in Malaysia. The data were collected from three main national Mobile Network Operators (MNOs) by using unbranded Samsung Galaxy S6 smartphone handsets, while the period of data collection was between January and February. Two MBB services were considered which are the video streaming and web browsing. For each MNO, the performance data of one MBB service was collected through one a dedicated smartphone. One smartphone was used to browse three different webpages, and One smartphone was employed to stream two YouTube videos with two different resolutions. The study considered four MBB Key Performance Indicators (KPIs), namely: latency, coverage, speed and satisfaction. As per the results, the performance of Fourth Generation (4G) is found superior than that of Third Generation (3G) networks. For instance, a vMOS score of above 3.3 was achieved by 4G networks for MBB video-streaming service, while, score of below 2.6 was attained by 3G networks across all the four studied areas. In addition, it was observed that an enhancement factor of up to 2.86 and 2.83 in download speed was presented by 4G technology in case of video streaming and web page browsing respectively as compared to 3G technology. Examining the performance of current MBB networks is supportive before the deployment of the 5G network. The efficient development of 5G networks in Malaysia can be realized through these study findings, where the existing 4G infrastructures will contribute to supporting the 5G and 6G networks.</p>


Author(s):  
Feng Sun ◽  
Jinhe Zhang ◽  
Jingxuan Ma ◽  
Chang Wang ◽  
Senlin Hu ◽  
...  

The study of the spatial-temporal pattern and social performance of urban public services is a basic task for achieving urban fairness and justice. Through spatial analysis and social performance evaluation, this study explores the evolution of spatial-temporal patterns and the social performance of community sports and fitness venues in Shanghai from 1982 to 2019. The results show that the construction of Shanghai’s community sports and fitness venues presents the evolution pattern of “urbanization-suburbanization-reurbanization”. The center of construction has always been in the urban area and first moved toward the south and then toward the north. Government investment was the main source of funds for the construction of venues, and social investment has been steadily growing. The number and area of multiple types of venues has increased significantly, including trails, gymnasiums, and courts. The overall service coverage radius of Shanghai’s community sports and fitness venues has been significantly increased, and the regional equality between the core and peripheral areas has been obviously improved. The overall per capita service location entropy has not been significantly improved. The old city center and the peripheral area have always been the low-value areas, and the old city center is surrounded by high-value areas. The “low-high-low” three-circle spatial structure continues to exist, but around the old city center, the scope of the high-value area has expanded markedly. There was a significant optimization of social performance from 1999 to 2009. The social performance of the community sports and fitness venues in urban areas is better than that in suburban areas, but the optimization of social performance in suburban areas is greater than that in urban areas. The above analysis is expected to provide references for rationally arranging urban sports and fitness spaces, enhancing the fairness of urban public services, improving the quality of residents’ lives, and assisting the implementation of the “Healthy China” national strategy.


2021 ◽  
Vol 13 (14) ◽  
pp. 20209-20217
Author(s):  
Foram P. Patel ◽  
Pravinsang P. Dodia

The House Sparrow Passer domesticus is widely distributed across the world, and local alarming declines in sparrow populations have prompted studies focused on this species. An understanding of fundamental life history aspects such as roosting patterns is necessary for the development of efficient conservation strategies. This study examined House Sparrow roosting patterns in urban, suburban and rural areas of Bhavnagar during 2017–2018. Potential roosting sites were identified, and peak arrival/ departure times and roosting duration of sparrows were recorded. We found that peak arrival and departure times were correlated with solar timings, indicating a strong influence of photoperiod on sparrow behaviour. Little variation was observed in sparrow arrival and departure times across the urban, suburban and rural gradient. However, arrival duration was significantly larger in urban and suburban areas. This may be due to the restricted availability of suitable patches within these habitats, requiring birds to spend more time foraging. House Sparrows mostly preferred thick vegetation for pre-roosting activities and roosting, and the loss of thick vegetation poses a threat to sparrow populations worldwide. In addition to increasing nesting opportunities by providing artificial nest sites, the importance of retaining appropriate habitats should be a major focus of conservation strategies.


2021 ◽  
Author(s):  
Chante Barnwell

<div>This Major Research Paper (MRP) examines the disproportionate designation of Heritage Conservation Districts (HCDs) within the City of Toronto, which are predominantly located in the City's downtown core, compared to the City's inner suburban areas. To illustrate the discrepancies in HCD designation, two potential HCDs in Scarborough, one of three inner suburbs in Toronto, are chronologically examined. Both Agincourt and Midland Park’s HCD represent the most recent examples of heritage designation in the inner suburb, which stands as the only area in the City that has zero HCDs. Before the case studies are discussed, the effects of Toronto's 1998 amalgamation, select timeframes of the City's planning history and recent changes to Provincial planning legislation that govern municipalities' heritage approach are examined. It is determined that a series of factors contribute to the disproportionate designation of HCDs in the City of Toronto. These factors include the incremental designation of heritage properties post amalgamation, the lengthy heritage designation process, the intergovernmental nature of municipal heritage policies, the lack of public education on the benefits of heritage and a complex HCD prioritization process all contribute to the disproportionate designation of HCD’s in the City of Toronto. Four key recommendations are offered to help resolve the heritage designation issue in the City of Toronto.</div><div><br></div><div>Keywords: Heritage Conservation Districts; Toronto; Urban Planning, Urban Policy, Heritage Urbanism.</div>


2021 ◽  
Author(s):  
Chante Barnwell

<div>This Major Research Paper (MRP) examines the disproportionate designation of Heritage Conservation Districts (HCDs) within the City of Toronto, which are predominantly located in the City's downtown core, compared to the City's inner suburban areas. To illustrate the discrepancies in HCD designation, two potential HCDs in Scarborough, one of three inner suburbs in Toronto, are chronologically examined. Both Agincourt and Midland Park’s HCD represent the most recent examples of heritage designation in the inner suburb, which stands as the only area in the City that has zero HCDs. Before the case studies are discussed, the effects of Toronto's 1998 amalgamation, select timeframes of the City's planning history and recent changes to Provincial planning legislation that govern municipalities' heritage approach are examined. It is determined that a series of factors contribute to the disproportionate designation of HCDs in the City of Toronto. These factors include the incremental designation of heritage properties post amalgamation, the lengthy heritage designation process, the intergovernmental nature of municipal heritage policies, the lack of public education on the benefits of heritage and a complex HCD prioritization process all contribute to the disproportionate designation of HCD’s in the City of Toronto. Four key recommendations are offered to help resolve the heritage designation issue in the City of Toronto.</div><div><br></div><div>Keywords: Heritage Conservation Districts; Toronto; Urban Planning, Urban Policy, Heritage Urbanism.</div>


MAUSAM ◽  
2021 ◽  
Vol 63 (4) ◽  
pp. 615-622
Author(s):  
G.K. DAS ◽  
S.N. ROY ◽  
S.K. MIDYA

In this paper an attempt has been made to study climatological characteristics and forecasting aspects of heavy rainfall over Kolkata for data of 34 years of period from 1974 to 2007. Total 184 events has been found out and the data set has been subjected to various types of analysis along with favourable synoptic system and critical index for occurrence of heavy rainfall over Kolkata. Average occurrence is found as 5.4 events per year. Monthly distribution shows maximum of 26% events in July followed by September 20%, August17% and June as 14%. Seasonal distribution naturally indicates maximum of 77% occurrence during monsoon followed by post-monsoon with 14% and pre-monsoon with 09 %. Synoptic analysis revealed that majority of heavy rainfall events occurred due to low pressure system (LPS). Study of 167 cases (during June to October) suggests that when any one of the favourable synoptic condition prevailed over the region and DPD-Wind-PW-WS index reaches a critical value, heavy to very heavy rain occurred over Kolkata and suburban areas.


2021 ◽  
Vol 9 (12) ◽  
pp. 2588
Author(s):  
Phirabhat Saengsawang ◽  
Serge Morand ◽  
Marc Desquesnes ◽  
Sarawut Yangtara ◽  
Tawin Inpankaew

Bartonella spp. are Gram-negative zoonotic bacteria transmitted to humans via various blood-sucking arthropods. Rodents have been identified as reservoir hosts of several zoonotic pathogens, including Bartonella spp. In Thailand, studies of Bartonella spp. in rodents from urban areas are limited; thus, a study in this area is necessary. The objectives of this study were to detect Bartonella spp. in rodents in Thailand and to compare the species’ distribution across different areas. In total, 70 blood samples from rodents in urban and suburban areas were tested for Bartonella spp. using a conventional polymerase chain reaction that targeted the citrate synthase (gltA) gene. All Bartonella-positive sequences were analyzed using polymorphism in order to build a phylogenetic tree. Approximately 38% of the rodents studied contained Bartonella DNA. Both Rattus exulans (Pacific rat) and R. tanezumi (Asian house rat) contained Bartonella spp. Four species of Bartonella were detected in blood samples: B. tribocorum, B. phoceensis, B. grahamii, and B. rattimassiliensis. In addition, eight Pacific rats contained the B. kosoyi–B. tribocorum complex. Bartonella phoceensis and B. tribocorum–B. kosoyi complexes were found in a specific habitat (p < 0.05). Interestingly, only seven haplotypes were identified in the sequences analyzed, and only haplotype A was found in both rodent species. Finally, a monitoring program for zoonotic Bartonella infection, especially the B. kosoyi–B. tribocorum complex, B. phoceensis, B. grahamii, and B. rattimassiliensis should be established, especially in high-risk areas.


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