bluuebunny/crossref_metadata_2025 huggingface dataset:
Weighted Centroid Localization Algorithm Based on MEA-BP Neural Network and DBSCAN Clustering
Authors: Li Yi
Published: November 2022

In order to overcome RSSI ranging error and improve the accuracy of positioning results, a weighted localization algorithm based on MEA-BP Neural Network and DBSCAN clustering is proposed in this paper. This algorithm uses MEA-BP Neural Network (MEA-BP NN) model to optimize ranging information firstly, then it uses trilateral measurement method to get multiple initial localization results about unknown node and form a set. After clustering the results by DBSCAN and eliminating noise points, the estimated coordinate of unknown node in each cluster is obtained by using the weighted centroid localization algorithm based on collinearity. Next the number of core points in each cluster is regarded as weight value, the weighted centroid localization algorithm is used again, thus the final coordinates of unknown node can be got. Simulation results show that the localization accuracy of wireless sensor network can be improved significantly by using this algorithm in two-dimensional scene.
Text Independent Writer Identification Based on Pre-training Model and Feature Fusion
Authors: Li Zhenjiang , Zhang Qianxue , Wang Yiqun
Published: November 2022

Handwriting is one of the natural biological characteristics of human beings. People have a high degree of acceptance of identity recognition technology based on handwriting. It has a wide application prospect in the fields of finance, government affairs, justice and so on. In this paper, firstly, the original document image is segmented into smaller regional samples by using the sliding window method. Secondly, multiple pre-training models are used to extract the sample features, and multiple features of the samples are fused. Finally, the euclidean distance is used to express the degree of difference between samples. Experiments show that this method has a high recognition rate and has a certain application value.
Spatial distribution analysis of lift net fishing device based on oceanographic features in Palabuhanratu Bay
Authors: Ikrimah H , Supriatna S , Shidiq I P A
Published: November 2022

The types of charting gear being utilized by fisher in Palabuhanratu Bay are improving over time. From the raft lift-nets to the boat charting equipment. According to local authorization in fish gathering or PPI, the number of chart fishing gear in Palabuhanratu Bay is around 500 pieces in 2019. The goals of this study are to analyze the spatial distribution of lift net fishing devices during the dry and rainy months and determine the oceanographic features that are might influencing the spread. Some oceanographic parameters being employed include sea surface salinity, sea surface temperature (SST), water current, water depth, and chlorophyll-a concentration. This study uses images from the Google Earth application to mark the location of the lift net fishing devices. Additional satellite imageries from Landsat 8 OLI-TIRS sensors were applied to generate sea surface salinity, SST, and chlorophyll-a maps. The lift net fishing devices are mostly distributed in shallow water (water depth between 40 to 100 meters). The chlorophyll-a concentration, sea surface salinity, SST, and water depth the most significant oceanographic features influencing the number of lift net fishing devices during both seasons (dry and rainy months).
Empirical modeling of the distribution of chlorophyll-a in riam kanan reservoir
Authors: Saputra A N , Arisanty D , Muhaimin M , Adyatma S
Published: November 2022

Monitoring inland water quality through remote sensing is an alternative method. Broad remote sensing image coverage has the potential to increase the scope of monitoring. Remote sensing imagery is very suitable for monitoring in the Riam Kanan Reservoir which has a normal water level of 3200 Ha. Community activities for fisheries and tourism have the potential to increase nutrients and water fertility. The impact is in the form of an explosion of algal micro population which has a negative effect on the aquatic ecosystem and the surrounding population. Landsat 8 OLI was used in this study to determine the level of chlorophyll-a content in reservoir waters. Empirical modeling is a method for modeling the distribution of chlorophyll-a content utilizing the results of field measurements. Through this method also can be known which spectral band has an influence in monitoring the chlorophyll-a so that it can be seen the level of water fertility in the Riam Kanan reservoir.
A spatial study of landscape patterns in landslide-prone areas at cikakak sub-district, west java
Authors: Aisyah S N , Supriatna S , Rustanto A
Published: November 2022

Landslides have a record of deadliest impact in Indonesia during 2015 – 2017. Landslide may be caused by human activities which deteriorate the environment condition such as by reconstructing the landscapes that may reduce the ecological functions. Therefore, mapping the landslide-prone area is necessary as one of the efforts to mitigate the disaster that could be following. The methods used in this study are the landscape metrics with FRAGSTATS 4.2. and Index Storie. Landscape metrics is useful to map the landscape pattern while the Index Storie can be used to map the landslide-prone area, both Indexes then being used for further analysis to determine the relationship between landscape patterns and landslide-prone areas in the study area. Deforestation in the study area is indicated by the values of PD, LPI, and IJI, the Index Storie shows that areas of moderate landslide-prone areas dominate the study area and have specific characteristics that trigger the landslides. A combination of landscape metrics and Index Storie show that the relationship between landscape patterns and landslide-prone areas can be one of the priorities determining tools used for monitoring and planning land cover as an effort to mitigate landslides.
The extraction and analysis of lineament density from digital elevation model (dem) in libungo geothermal area, gorontalo
Authors: Manyoe I N , Hutagalung R
Published: November 2022

Remote sensing often used in geothermal exploration because it was considered has many advantages. The aim of this research is to extract and analyze the lineament density in the Libungo geothermal area based on a Digital Elevation Model (DEM). Lineament is obtained from Digital Elevation Model (DEM) satellite image data downloaded from the Geospatial Information Agency (BIG) page. Digital Elevation Model (DEM) data processing uses Geomatica aplication to extract the lineament automatically. Extracted lineament is processed using Geographic Information System (GIS) aplication to produce a lineament density map and processed using Rockworks aplication to generate direction. Lineament density maps help identify permeability in the Libungo geothermal area. Based on the results of the extraction and lineament density analysis, it is interpreted that the Libungo geothermal area has a high-density value. High density values are associated with good permeability. A direction that affect lineaments in the Libungo geothermal area are northwest-southeast in the direction of Gorontalo’s main geological structure.
The susceptibility of landslide zone using weight of evidence method in nagari tanjung sani and nagari sungai batang, west sumatera.
Authors: Lestari S F , Suratman
Published: November 2022

Landslides naturally occur to create slope stability, especially in mountainous areas. Disaster management is needed to minimize the impact of losses incurred. Management of landslide is formed based on knowledge of characteristics, types, and processes of disaster occurrence. Map of landslide susceptibility was one of that. This research aims to determine and analyze the type, landslide density based on event control factors, and zonation of susceptibility. The method used was the statistical method of Weight of Evidence (WOE) and field observation. The results showed that Nagari Sungai Batang has a translational and rotational type of landslide with a medium density of landslide and medium susceptibility of landslide. Nagari Tanjung Sani has landslide type rockfall and topple with a high density of landslide and highest susceptibility. Based on these conditions there were some differences in type, the controlling factor, and susceptibility of landslide degree, although they were formed from the same geomorphological process as Caldera shape by Andesit Maninjau Formation.
The identification of soil moisture as a factor of drought in cilutung watershed during indian ocean dipole year
Authors: Arlan D S D , Kusratmoko E , Hernina R
Published: November 2022

The Indian Ocean Dipole event in 2019 has caused several drought events in the Cilutung Watershed. The information about the spatial and temporal soil moisture distribution along its changes is needed to identify soil moisture values as a drought factor in the Cilutung Watershed. The Landsat 8 OLI-TIRS data used to get the value of soil moisture based on Soil Moisture Index (SMI) method by applying the triangle method between Land Surface Temperature (LST) and Normalized Difference Vegetation Index (NDVI). This study analyses the spatial patterns of soil moisture and identifies physical characteristics that are forming in the areas with dry and very dry soil moisture values in the Cilutung Watershed during the dry period in 2019. The results showed that in the Cilutung Watershed during the dry month period in 2019, the Soil Moisture Index value would be higher on steep slopes, with the land-use consisting of shrubs, forests and mixed dryland agriculture, with the type of soils, red-yellow podzolic while the Soil Moisture Index value would be lower on the flat slopes, with the land-use consisting of residential land and open land, with the type of soils grumusol. Based on the K-Means grouping analysis method, the areas with dry and very dry soil moisture values in the Cilutung Watershed tends to have physical characteristics of flat slopes, the type of land use such as the settlement, mixed dryland agriculture, open land and rice fields, with the soil types grumusol, latosol and andosol.
identification of lithological characteristics using multispectral landsat 8 oli imagery in the cipatujah area, west java, indonesia
Authors: Aliyan S A , Bratanegara A S , Ihsan H M , Astari A J , Somantri L
Published: November 2022

The Cipatujah area is part of the Southern Mountains of West Java which has diverse and unevenly distributed lithology. The lithology that dominates the Cipatujah and surrounding areas originate from the volcanic activities such as lava, volcanic breccias, tuffs, and intrusions. While the sedimentary rocks that compose them are limestone and sandstone rocks. The lithology that dominates the southern region is carbonate sedimentary rocks, which are represented by sandstone units. In the northern part, the lithologies are dominated by deposition results volcanic activity consists of various materials originating from andesitic lava units that extend to the east of the research area, while the volcanic breccia deposited from north to the west of the research area. There is a tuff unit layer above the volcanic breccia to the south. In the eastern area deposited carbonate rock units that form the karst landscape. Lithology characterization and determination of rock units in the Cipatujah area were carried out using image processing techniques from color composite bands from Landsat-8 (OLI) data. Geological analysis using SWIR-2 (7), SWIR-1 (6), and blue (2) composite bands and lithology using near-infrared (5) composites SWIR-1 (6), and SWIR-2 (7) bands. Then the analysis results are examined with geological data from the mapping that has been done before. Approach to band composite analysis by verifying geological data taken directly to help improve the identification and validation of better and more measured lithological distribution.
Remote sensing-based vegetation indices for monitoring rice crop phenology and productivity in cikakak sub-district, sukabumi regency
Authors: Hisyam A K , Supriatna S , Shidiq I P A
Published: November 2022

Paddy is the main food crop consumed by most of the Indonesian daily. It is supported by the fact that rice consumption reached up to 1.55 tons in 2018, and Sukabumi Regency is among the five largest rice producer in Indonesia. The goal of this study is to determine the rice crop phenology and estimate rice productivity in one year of the planting season. The rice crop phenology was analyzed by comparing vegetation indices such as NDVI, ARVI, and MSAVI in different temporal situations. Vegetation indices derived from Sentinel-2 imageries via Google Earth Engine. A rice crop productivity model developed from the statistical relationship between in-situ-based productivity data and vegetation indices applied to estimate productivity per each paddy field at a sub-district level. Also, the estimation will be associated with elevation data. The results of this study are the pattern of the rice crop phenology and the number of harvesting time in one year-planting season. The rice productivity in the Cikakak sub-district estimates at the range between 6.50 to 8.87 tonnes per hectare. Estimation models utilizing NDVI and MSAVI are showing similar results, which averagely at 8.89 and 8.87 tonnes per hectare, respectively. Rice fields with high productivity are mostly located at 250 to 500 meters above sea level.
Gis network analysis to optimize zoning system implementation for public junior high schools in yogyakarta city
Authors: Utami R K S , Khakhim N , Jatmiko R H , Kurniawan A , Halengkara L
Published: November 2022

Schools availability as public facilities is the government duty and responsibility. Recently, the government implemented a policy of school zoning system to increase society access to education. This policy requires children to choose school closest to their home. However, facts denoted that many problems occur with this system. School zoning techniques with buffer system become an obstacle due to the emergence of ‘blankspot area’. This study aims to provide an alternative solution of blankspot area problem in the school zoning system. This study applies network analysis using the p-median model (location-allocation analysis) and service area analysis. The network analysis used impendace modification as a standard for zoning based. ArcGIS is used as a spatial analysis tool to provide better illustration of this network analysis. The results indicated that the service area analysis was more effective in solving zoning technique problems compared to the p-median model analysis because it provided a higher percentage of demand coverage when using the same impedance constraints. However, the p-median analysis technique is able to provide a more realitic picture of the allocation for each demand (without impendance). This research emphasizes the importance of adding schools in order to optimize the school services.
Land use change as one of the indicators to formulate the gentrification phase at the diponegoro university semarang
Authors: Ariani N M , Priambudi B N , Wijaya M I H
Published: November 2022

Campus as an educational area is one of the areas with the most potential for gentrification. It happened in the Diponegoro University area which first began in 1980 until now. The occurrence of gentrification in the Diponegoro University area has been proven by previous research which shows that this area shows the characteristics of gentrification seen from the physical, social and economic aspects. However, the exact stages / phases of gentrification in the region are not known. Many factors can be used to assess the development of the gentrification phase, such as land cover and changes. The main aim of the present research is to formulate the phase of gentrification occurred in the Diponegoro University based on land use changes from 2006 to the present. The method used is a spatial analysis of image processing in series. The satellite imagery used is the GeoEye-1 type in 2007, 2012 and 2019. The results show that the gentrification phase starts with the entry of immigrants, which is followed by an increase in land values, changes in the face of the area and the migration of indigenous people to other areas. Changes in the area can be seen from the reduced agricultural land area, to the increase number of housing clusters and the emergence of city-scale commercial facilities. The total addition of built-in land in the study area from 2007 to 2019 was 301,171 Ha, with the urban village having the largest increase being Meteseh with the addition of a total built land of 66,913 Ha.
Tour guide level of understanding on geodiversity, biodiversity, and culture diversity - study at ciletuh pelabuhanratu global geopark
Authors: Yani A , Mulyadi A , Rosita
Published: November 2022

One of the competencies that guides must be mastered is communicating ideas and information about physical, social, and cultural conditions at tourist sites. The views and data that need to be shared in the geopark area are three elements, namely Geodiversity, Biodiversity, and Culture Diversity. Also, it must be able to communicate in an exciting and communicative language. This study wants to find out the level of understanding of guides on these three aspects. The research method used was a survey and thorough testing of research subjects, namely members of the Indonesian Tour Guides Association in Sukabumi Regency, especially those serving tourists in the Ciletuh Palabuhanratu Global Geopark. The results showed that the material’s average mastery was still lacking, and the distribution of the material under its control was uneven. Thus, it is considered necessary to increase competence, especially regarding the knowledge and understanding of the geopark’s three aspects.
The demographic dynamics of bandung city in the early 20th century in haryoto kunto’s view
Authors: Fauzi W I , Santosa A B , Tarunasena  , Yulianti I
Published: November 2022

This article discusses the demographic development of Bandung City from 1907-1996 which was recorded in the works of “Kuncen Bandung” Haryoto Kunto. Haryoto Kunto explored the history of Bandung from old books and arranged in such a way to get a general description of Bandung from time to time. His works use very loose language, almost the same as the colloquial language used in daily conversation. However, his works have important information regarding Bandung’s demographic change, especially in terms of the emergence of immigrants. This study uses a qualitative content analysis method to describe and analyze in detail the description of the demographic dynamics of Bandung in 1907-1996 in Haryoto Kunto’s books, such as Wajah Bandoeng Tempo Doeloe (1984), Semerbak Bunga di Bandung Raya (1986), and Ramadhan di Priangan (1996). Haryoto Kunto describes the history of the city of Bandung in a very interesting way of telling stories using the perspective of city history and the approach of planalogy. Factors that accelerate population development in the city of Bandung are the policy of relocating the capital city of Bandung, relocating the Priangan residency capital, infrastructure development, urbanization, and plantation development. The development of other city infrastructure has added to the heterogeneity of the population of Bandung City. The immigrants in the city of Bandung can be seen from the naming of places and roads, such as Babakan Bogor, Babakan Surabaya, Kampung Jawa, Jalan Naripan (Betawi), Asep Berlian (Palembang), Alketiri Alley, and Aljabri Gang (Arabic), and Chinatown (Ethnic Chinese).
Demographic issues in local area: insight from kretek sub district, regency of bantul, yogyakarta special region, indonesia
Authors: Sukamdi  , Putri R F , Alfana M A F , Aryati S , Dewi R P , Aditya B , Budiman L S , Ningrum S K
Published: November 2022

So far, the issue of demographic conditions with development has been more discussed at the national and provincial levels. There has not been much discussion at the administrative level below, the regency, and at the sub district level. In line with decentralization, demographic issues at the local level have become very important. Because it will be a consideration in the preparation of development programs at the local level. This study aims to identify demographic conditions, including their potential and challenges, at the sub district level. The research will emphasize the use of available secondary data obtained from various related sources. The results have shown that the potential of human resources in the Kretek Sub District was huge. It can see from the number of productive age populations, which is three times the population of non-productive age. This research conclude that the demographic bonus and window of opportunity will win by the Kretek Sub District. The challenge ahead is, of course, how to take advantage of this large amount. The goal is that the productive population can access the economy well, which leads to the welfare of the people.
Spatial relationship of horticultural farming with household welfare in rancabali district, bandung, west java
Authors: Naser A F , Setiadi H , Rizqihandari N , Indratmoko S
Published: November 2022

Agriculture is one of the important sectors for economic development in West Java. Unfortunately, agricultural land continues to decrease. This trend is also seen in the Ciwidey Agropolitan Area, Bandung. Horticultural farmers are forced to manage crops on a narrow land. The purpose of this study is to explain the spatial relationship between horticultural patterns and household welfare in Rancabali District, which is part of Ciwidey Agropolitan Area. This study is a descriptive study using map interpretation and cross tabulation. Data comes from systematic interview, field observation, and secondary sources. For analysis purposes, this study uses land conditions and accessibility as a spatial framework. The results show that most of the horticultural farming is a monoculture that is cultivated independently by farmers without involving labor. Labor involvement is only found on agricultural lands with a lower accessibility. This spatial pattern is closely related to the welfare of farmers. The better the accessibility, the higher the welfare of the farmer household. However, in areas with a lower accessibility, the level of welfare will only increase if they have a more spacious land.
Construction of spatial & tourism perspective for wali nagari, custom leader, and community figure in nagari batuhampar, limapuluh kota district
Authors: Susetyo B B , Wijayanto B , Sutriani W , Ferdian F
Published: November 2022

Minangkabau community is a society that highly upholds customary values, like in Nagari Batuhampar administrative area. This Nagari (village level area) in Limapuluh Kota District has dynamic social and physical conditions. Minangkabau community hold the values of “Adat Basandi Syara, Syara Basandi Kitabullah” (Custom jointed with Sharia, Sharia jointed with the Quran) in life. It is also colored the administrative aspects of regional development, like implementation of tourism policies in Nagari Batuhampar. Wali Nagari, custom leader, and community figure believe that sustainable tourism and culture can go hand in hand. It is caused Minangkabau culture is currently under pressure from influence of technology, information, and communication nowadays. Young generation is starting to be faced with various kinds of information flows and foreign cultural exchanges, and some of which are not suitable with Minangkabau culture. This research is qualitative construction research. The purpose is to understand the meaning constructed by individuals at certain times. The results state that spatial perspective in Minangkabau culture has three meanings, namely darek (high area), pasisia (west and central coastal areas of Sumatra Island) and rantau (eastern area of the river estuary-Malacca Strait) used in identifying the location of the village for regional development, such as: tourism. The tourism that will be developed is not only to improve the economic level, but also will be utilized by Wali Nagari to focus on Minangkabau culture in Nagari Batuhampar such as studying in surau and so on.
Zoning based on the functions of the geography education field laboratory in the galunggung mountain area, west java-indonesia
Authors: As’ari R , Rohmat D , Ningrum E , Yani A
Published: November 2022

Open space offers opportunities that are not found indoors in the learning process. The physical environment contributes to students’ learning by exploring their abilities. This requires the world community to be aware of the location, understand the relationship between locations, cause-effect (analysis), and the consequences caused internally and externally. The need for a comprehensive geographic study model is needed, so that it can show the public a geographical solution to certain environmental problems. Geography Education field laboratory can be used as a support for learning in the classroom. The method of zoning for the analysis of needs for field laboratory studies in the Mount Galunggung area is carried out by identifying needs, by referring to the learning outcome program and course learning. Types of integrated laboratories located in faculty or university study centers, or technical implementing units that provide education and / or training with supporting equipment for categories I, II, and III, and managed materials are general and special category materials to serve research activities, and community service, students and lecturers. Based on the results of field surveys and satellite image analysis which refers to suitability indicators for the development of potential Geography education field laboratories, the Gunung Galunggung area has 5 stations/ zones to be used as a Geography Education Field Laboratory.
Effectiveness of ginger supply chains in rural communities as a form of farming sustainability (study case in Cianjur district)
Authors: Khotimah S R H , Gunawan W , Dwiartama A
Published: November 2022

Ginger has a high economic value. It has benefits for health and doesn’t require complicated processing. But, ginger required a long period to cultivate. It makes farmer’s interest in cultivating ginger decrease and ginger production continues to decline every year. Aside from that, ginger certified seeds are also limited. Meanwhile, demand for ginger continues to rise. To meet these demands, an effective and efficient supply chain management is needed. One of the largest ginger productions in West Java is located on Cianjur. So the purpose of this research is to determine an efficient ginger supply chain of farming sustainability in Cianjur. The method used is descriptive analysis use framework of the Asian Productivity Organization (APO). Then develop it as a strategy use SWOT-AHP method. The results showed ginger supply chain’s members in Cianjur consisted of farmers, collectors, wholesale market, local market, and consumers. Ginger supply chain management in Cianjur isn’t effective because there are still some obstacles in each member. The strategy chosen is to improve productivity and product quality for a better supply chain. There is also a need for mutual awareness between each chain in increasing the productivity and quality of ginger so that producers are more enthusiastic about cultivating ginger in the future. So that farming activities remain sustainable.
Effect of climate change on the geographical distribution of leptospirosis risk in western Java, Indonesia
Authors: Dhewantara P W , Riandi M U , Wahono T
Published: November 2022

Climate change is known to have a significant impact on public health as it could speed the spread of zoonotic infections. The purpose of this study is to estimate the potential geographical distribution of the risk of leptospirosis – a bacterial infection caused by Leptospira spp and transmitted by rodents, in Western Java islands. The possible distribution of Leptospira was modelled by using MaxEnt ecological niche (EN) framework under various climate scenarios. Data for elevation and nineteen bioclimatic variables associated with temperature and precipitation were obtained from climate database. In general, the shift in the geographical distribution in leptospirosis occurrence is evident. The model shows that the probability of the leptospirosis occurrence is predicted to be high in the northern and central part of the islands. The annual mean temperature, annual precipitation, and precipitation of wettest quarter were the more significant contributors to the dynamic of leptospirosis emergence. The study reveals that climate change will likely increase the probability for leptospirosis emergence over the islands, suggesting the importance of substantial mitigation efforts towards improving sanitation, hygiene and flood management, in addition to strengthening public health preventive and surveillance strategies at a local level.
Spatial-ecological approach in cirebon’s peri-urban regionalization
Authors: Dede M , Asdak C , Setiawan I
Published: November 2022

The environmental transformation from rural into urban is a regional development process, it usually happens to industrial countries and formed a peri-urban region. Understanding the peri-urban development is an attempt to analyze the potential changes in environmental quality due to landscape changes in Cirebon Regency. The method of determining a peri-urban region is based on the spatial-ecological approach that is not only to use administrative boundaries. This study aims to analyze the regionalization of Cirebon’s peri-urban using spatial-ecological approach. Parameters to determine the region based on built-up area, road density, distance from Cirebon City, and residential population density. The Cirebon’s peri-urban was obtained from overlay analysis and defined interval reclassification. This study shows that the Cirebon’s peri-urban has an area of 76.83 km2 which is divided into five sub-districts and 48 villages surrounding Cirebon City. This peri-urban is mostly in the western of Cirebon Regency. This phenomenon shows the development direction of Cirebon City (urban sprawl) is more dominant towards the western and northwest because of massive development in industries, services, and transportations.
Sustainable development from the view of village development index implementation at landslide prone area in kulonprogo
Authors: Retnowati A , Maulya G D , Fajar K I D
Published: November 2022

Disaster has two folded sides, the destructive and the early stage of development. A disaster prone area can be seen as an evaluation of planning and program implemented. The National Government through Ministry of Villages, Development of Disadvantaged Areas, and Transmigration allocates annual budget for villages to enhance and improve their regional development. Two villages, namely Pendowoharjo and Pagerharjo at landslide disaster prone area in KulonProgo are depicted as study area in the implementation village development index (Indeks Desa Membangun/IDM). The two villages are at high risk landslide area but show different progress of development based on The village budget application in accordance to the IDM. Desk study and online interview revealed that collaboration between village government with academia and private sectors play significant role to enhance village development progress. Pendoworejo Village turn to be a developing village, while Pagerharjo Village become a developed village. Spatial approach supports the spatial analysis in this study and show that anthropogenic parameter is the constraints factors for development progress and the sustainability.
An analysis of settlement development areas in 2010-2020 in blambangan umpu, way kanan regency, lampung province
Authors: Sari R M , Ahmad  , Rindarjono M G
Published: November 2022

One of the land use changes is affected by population growth in a particular area since human needs a place to live and settle. Land use in each region is a form of meeting the needs of the community. Changes in land that are used for settlements can occur in certain area such as in Blambangan Umpu District, Way Kanan Regency, Lampung Province. Meanwhile, the purpose of this study is to analyse the development of settlements in Blambangan Umpu District in 2010-2020. The method used in this study is descriptive method with qualitative approach. The data were collected by several techniques including field observations, literature study, and documentation study. The data were then analysed by using descriptive analysis technique. The results of the study which are based on the map published in 2010, 2015, 2017, and 2020 show that the land use changes for settlements have occurred in Blambangan Umpu District. The results of the analysis show the distribution of settlements towards the northern and southern parts of Blambangan Umpu District, Way Kanan Regency, Lampung Province within 10 years. The implication of this research is that local government needs to consider in regional spatial planning for the future.
Using Google Street View Panoramas to evaluate the environmental aesthetics quality of blue spaces in urban area
Authors: Luo S , Xie J , Furuya K
Published: November 2022

The water environment is considered an important element of the urban landscape. In this study, panoramas of the Google Street Map were used to evaluate the aesthetics quality of three blue spaces environment in the Tokyo, and discussed factors affecting these aesthetic qualities. The founding of the paper: 1) the environmental characteristics of the three selected UBSs are different; 2) three UBS with different environmental visual factors (SVF, BVF, and TVF); 3) the Google Street View panoramas used in the study enable viewers to perceive the differences in the aesthetic quality of different environments; 4) the most significant preference predictor for three UBS is Mystery, and “Multisensority & Nature” and “Sublimity” are two significant preference predictor for urban canal. The results of the study have practical and managerial implications for improving the environmental aesthetic quality of urban blue spaces.
Analysis of Green Infrastructure Development Policy in Indonesia: An Adaptive Strategy for Sustainable Landscape Development
Authors: Faisal B , Dahlan M Z , Chaeriyah S , Hutriani I W , Amelia M
Published: November 2022

Urban areas as the center of regional growth face various challenges in the future. Environmental degradation, natural disasters, and climate change result in a declining quality of life in urban areas. In response to the global challenges, various cities have developed the concept of Green Infrastructure through an ecological approach and achieved environmental sustainability. Green infrastructure is an interconnected green space network planned to manage natural resources conservation and urban utilities based on urban ecology. Green infrastructure is considered a sustainable and resilient infrastructure that also provides ecological, economic, and social benefits through natural solutions. The Green City Roadmap in 2015 has initiated the development of the Green Infrastructure Concept in Indonesia, which developed from a contextual paradigm shift of Green Open Space. In 2018, the Ministry of Public Works had proposed a guideline for Planning Green Space and Infrastructure as a follow-up to the Green City Roadmap. However, primarily Indonesia’s major cities have not optimized green infrastructure planning until now. This short communication aims to analyze the development policy of green infrastructure planning, also to determine challenges and ideas for policy implementation. Method used in this study is document analysis of the proposed guideline for Planning Green Space and Infrastructure. The study showed the critical role of green space and infrastructure planning policy in Indonesia as a connected and accessible strategic network of green spaces with multifunctionality in response to environmental and socio-economic issues. However, this study found varying, overlapping and unseated development policies. Conducting a further analysis to determine the critical components of national and regional policy development related to green infrastructure planning is strongly recommended.
Landscape Engineering Adjustment for Designing the Public Green Open Space of the ex-Kacangan Market, Boyolali Regency
Authors: Sukirman V , Nuryanti P
Published: November 2022

Ex-Kacangan market is one of the focuses for the development of green open space in Boyolali. The site is currently an empty land that is filled with demolition waste. As a result, the site’s characteristics have changed. The slope of the land makes the site threatened by various disasters such as floods, landslides, or erosion. The purpose of this research is to make recommendations for the design of the ex-Kacangan Market land as a public green open space that can maximize potential and minimize existing constraints. The research was conducted using a qualitative descriptive method referring to the landscape design process of Booth (1999) accompanied by an analysis of the effect of demolition waste on the quality of the site as the design basis. The basic concept of “urban retrofitting” is the basis used in the landscape design of this research. The concept is applied to the design concept through the interpretation of Mount Merbabu as an icon of the Boyolali landscape. The design is in the form of adjusting the slope of the land through site grading, making drainage channels according to the amount of runoff, and selecting efficient and economic materials on the site.
Reinforced cathode-garnet interface for high-capacity all-solid-state batteries
Authors: Zheng Chenxi , Tang Shijun , Wen Fangmei , Peng Jinxue , Yang Wu , Lv Zhongwei , Wu Yongmin , Tang Weiping , Gong Zhengliang , Yang Yong
Published: November 2022

Garnet-type solid-state electrolytes (SSEs) are particularly attractive in the construction of all-solid-state lithium (Li) batteries due to their high ionic conductivity, wide electrochemical window and remarkable (electro)chemical stability. However, the intractable issues of poor cathode/garnet interface and general low cathode loading hinder their practical application. Herein, we demonstrate the construction of a reinforced cathode/garnet interface by spark plasma sintering, via co-sintering Li6.5La3Zr1.5Ta0.5O12 (LLZTO) electrolyte powder and LiCoO2/LLZTO composite cathode powder directly into a dense dual-layer with 5 wt% Li3BO3 as sintering additive. The bulk composite cathode with LiCoO2/LLZTO cross-linked structure is firmly welded to the LLZTO layer, which optimizes both Li-ion and electron transport. Therefore, the one-step integrated sintering process implements an ultra-low cathode/garnet interfacial resistance of 3.9 Ω cm2 (100 °C) and a high cathode loading up to 2.02 mAh cm−2. Moreover, the Li3BO3 reinforced LiCoO2/LLZTO interface also effectively mitigates the strain/stress of LiCoO2, which facilitates the achieving of superior cycling stability. The bulk-type Li|LLZTO|LiCoO2-LLZTO full cell with areal capacity of 0.73 mAh cm−2 delivers capacity retention of 81.7% after 50 cycles at 100 μA cm−2. Furthermore, we reveal that non-uniform Li plating/stripping leads to the formation of gaps and finally results in the separation of Li and LLZTO electrolyte during long-term cycling, which becomes the dominant capacity decay mechanism in high-capacity full cells. This work provides insight into the degradation of Li/SSE interface and a strategy to radically improve the electrochemical performance of garnet-based all-solid-state Li batteries.
CoMutDB: the landscape of somatic mutation co-occurrence in cancers
Authors: Jiang Limin , Yu Hui , Tang Jijun , Guo Yan
Published: November 2022

Motivation

Somatic mutation co-occurrence has been proven to have a profound effect on tumorigenesis. While some studies have been conducted on co-mutations, a centralized resource dedicated to co-mutations in cancer is still lacking.

Results

Using multi-omics data from over 30 000 subjects and 1747 cancer cell lines, we present the Cancer co-mutation database (CoMutDB), the most comprehensive resource devoted to describing cancer co-mutations and their characteristics.

Availability and implementation

The data underlying this article are available in the online database CoMutDB: http://www.innovebioinfo.com/Database/CoMutDB/Home.php.
Neurotensin expression, regulation, and function during the ovulatory period in the mouse ovary
Authors: Shrestha Ketan , Al-Alem Linah , Garcia Priscilla , Wynn Michelle A A , Hannon Patrick R , Jo Misung , Drnevich Jenny , Duffy Diane M , Curry Jr Thomas E
Published: November 2022

The luteinizing hormone (LH) surge induces paracrine mediators within the ovarian follicle that promote ovulation. The present study explores neurotensin (NTS), a neuropeptide, as a potential ovulatory mediator in the mouse ovary. Ovaries and granulosa cells (GCs) were collected from immature 23-day-old pregnant mare serum gonadotropin primed mice before (0 h) and after administration of human chorionic gonadotropin (hCG; an LH analog) across the periovulatory period (4, 8, 12, and 24 h). In response to hCG, Nts expression rapidly increased 250-fold at 4 h, remained elevated until 8 h, and decreased until 24 h. Expression of Nts receptors for Ntsr1 remained unchanged across the periovulatory period, Ntsr2 was undetectable, whereas Sort1 expression (also called Ntsr3) gradually decreased in both the ovary and GCs after hCG administration. To better understand Nts regulation, inhibitors of the LH/CG signaling pathways were utilized. Our data revealed that hCG regulated Nts expression through the protein kinase A (PKA) and p38 mitogen-activated protein kinase (p38MAPK) signaling pathways. Additionally, epidermal-like-growth factor (EGF) receptor signaling also mediated Nts induction in GCs. To elucidate the role of NTS in the ovulatory process, we used a Nts silencing approach (si-Nts) followed by RNA-sequencing (RNA-seq). RNA-seq analysis of GCs collected after hCG with or without si-Nts identified and qPCR confirmed Ell2, Rsad2, Vps37a, and Smtnl2 as genes downstream of Nts. In summary, these findings demonstrate that hCG induces Nts and that Nts expression is mediated by PKA, p38MAPK, and EGF receptor signaling pathways. Additionally, NTS regulates several novel genes that could potentially impact the ovulatory process.
Characterization of Viruses in Phase 3 and Phase 3b Trials (the Ring Study and the Dapivirine Ring Extended Access and Monitoring Trial) of the Dapivirine Vaginal Ring for Human Immunodeficiency Virus Type 1 Infection Risk Reduction
Authors: Steytler John , Craig Charles , van der Ryst Elna , Van Baelen Ben , Nuttall Jeremy , van Niekerk Neliëtte , Mellors John , Parikh Urvi , Wallis Carole ,   for the Ring Study and the DREAM Trial Study Teams
Published: November 2022

Background

The Ring Study demonstrated 35.1% human immunodeficiency virus type 1 (HIV-1) infection risk reduction among participants who used the Dapivirine vaginal ring-004 (DVR), whereas the Dapivirine Ring Extended Access and Monitoring (DREAM) trial, approximated a 62% risk reduction. The observed non-nucleoside reverse-transcriptase inhibitor (NNRTI) resistance-associated mutations (RAMs) and effects on viral susceptibility are described here.

Methods

Population-based genotyping on plasma samples collected longitudinally, and next-generation sequencing (NGS) and phenotypic susceptibility testing were done on plasma collected at seroconversion. Retrospective HIV-1 RNA testing was used to more accurately establish the time of infection.

Results

In the Ring Study, NNRTI RAMs were not observed in most viruses at seroconversion (population-based genotyping: DVR: 71 of 84, 84.5%; placebo: 50 of 58, 86.2%). However, more E138A was found in the DVR group (E138A DVR: 9 of 84, 10.7%; placebo: 2 of 58, 3.4%; P = .2, Fisher exact test). NGS detected 1 additional mutation in each group (DVR: G190A; placebo: G190A and G190E). Marginal dapivirine susceptibility reduction was found with NNRTI RAMs at seroconversion (geometric mean fold-change, range: DVR, 3.1, 1.3–5.1; placebo, 5.8, 0.9–120). NNRTI RAMs were not emergent between first detectable HIV-1 RNA and seroconversion when these visits differed (paired samples, mean ring use: DVR, n = 52, 35 days; placebo, n = 26, 31 days). After stopping DVR, 2 of 63 viruses had emergent G190G/A or K103K/N with V106V/M at final study visit. Resistance profiles from the DREAM trial were consistent with the Ring Study.

Conclusions

DVR showed little potential for selection of NNRTI-resistant variants.

Clinical Trials Registration

NCT01539226 and NCT02862171.
Convergent ablation for persistent atrial fibrillation: outcomes from a single-centre real-world experience
Authors: Mannakkara Nilanka N , Porter Bradley , Child Nicholas , Sidhu Baldeep S , Mehta Vishal S , Elliott Mark K , Gould Justin , Ahmed Shahada , Razavi Reza , Rinaldi Christopher A , Blauth Christopher , Gill Jaswinder S
Published: November 2022

OBJECTIVES

Atrial fibrillation (AF) is common and can cause significant morbidity and detriment to quality of life. Success rates for conventional catheter ablation are suboptimal in persistent AF (PsAF), especially when longstanding. Convergent hybrid ablation combines endoscopic surgical epicardial and endocardial catheter ablation. It offers promise in treating PsAF. We aimed to evaluate outcomes at our centre following convergent ablation.

METHODS

We conducted an observational study of patients undergoing ablation from 2012 to 2019 at a London cardiac centre. Sixty-seven patients underwent convergent ablation entailing epicardial ablation, mostly via sub-xiphoid access, followed by endocardial left atrial catheter ablation. Baseline and follow-up data were obtained retrospectively from clinical records. Primary outcome was freedom from AF on/off anti-arrhythmic drugs after 12-month follow-up. Secondary outcomes included freedom from AF over the entire follow-up, freedom from anti-arrhythmic drugs, freedom from atrial arrhythmias, symptom status, repeat ablation and complications.

RESULTS

At baseline, 80.6% had PsAF >1 year (80.6%), 49.3% had body mass index >30 kg/m2 at baseline and 19.4% had left ventricular ejection fraction of 40% or less. The median follow-up was 2.3 (1.4–3.7) years. Freedom from AF recurrence was 81.3% at 1 year and 61.5% over overall follow-up. Eleven patients (16.4%) required redo AF ablation. Prolonged AF duration was associated with increased recurrence at 12 months and duration >5 years with a shorter time to recurrence on Kaplan–Meier analysis, but this and other factors did not significantly impact the AF recurrence during the overall follow-up period.

CONCLUSIONS

Convergent ablation had good 1-year and overall success rates for treating PsAF. Our results in a diverse, real-world population support the potential of convergent ablation in patients with challenging to treat PsAF.