Location Map Research Articles

Nitrogen Dioxide Monitoring In Urban Areas of Lahore, Pakistan

Nitrogen dioxide (NO2) plays significant role in atmospheric chemistry mainly in secondary air pollutants formation which consequently result in environmental acidification. It has adverse impact on human health and considered as the second most harmful air pollutant after PM10 in major cities of Pakistan including Lahore. In this study, 15 major urban sites of Lahore with respect to vehicular flow were focused during rush hours from 1:30 pm to 9:30 pm for the monitoring of NO2 level. Chemiluminescence technique was applied to identify NO2 concentrations by using Horiba APNA-370 monitor. For sampling, four months of winter season November 2016 to February 2017 were selected and measured monthly average mean values; associated meteorological conditions like temperature, wind speed, rainfall and relative humidity were also monitored. A spatial distribution map of different locations for NO2 concentrations was developed by using geostatistical tool ArcGIS. The highest NO2 values near the main roads were mainly due to intense traffic flow and vehicular emissions unlike residential and commercial locations. Moreover, the NO2 level exceeded the NEQS standards at most of the sampling points during study. Therefore, it is mandatory to take desired steps in order to develop effective mechanism to control air pollution before it becomes a serious hazard for human beings living in urban areas.

A Machine-Learning Approach for the Reconstruction of Ground-Shaking Fields in Real Time

ABSTRACT Real-time seismic monitoring is of primary importance for rapid and targeted emergency operations after potentially destructive earthquakes. A key aspect in determining the impact of an earthquake is the reconstruction of the ground-shaking field, usually expressed as the ground-motion parameter. Traditional algorithms compute the ground-shaking field from the punctual data at the stations relying on ground-motion prediction equations computed on estimates of the earthquake location and magnitude when the instrumental data are missing. The results of such algorithms are then subordinate to the evaluation of location and magnitude, which can take several minutes. To fill the temporal gap between the arrival of the data and the estimate of these parameters, a new data-driven algorithm that exploits the information from the station data only is introduced. This algorithm, consisting of an ensemble of convolutional neural networks (CNNs) trained on a database of ground-shaking maps produced with traditional algorithms, can provide estimates of the ground-shaking maps and their associated uncertainties in real time. Because CNNs cannot handle sparse data, a Voronoi tessellation of a selected peak ground parameter recorded at the stations is computed and used as the input to the CNNs; site effects and network geometry are accounted for using a (normalized) VS30 map and a station location map, respectively. The developed method is robust to noise, can handle network geometry changes over time without the need for retraining, and can resolve multiple simultaneous events. Although having a lower resolution, the results obtained are statistically compatible with the ones from traditional methods. A fully operational version of the algorithm is running on the servers at the Department of Mathematics and Geosciences of the University of Trieste, showing real-time capabilities in handling stations from multiple Italian strong-motion networks and outputting results with a resolution of 0.05° × 0.05°.

A motional but temporally consistent physical video examples

Adversarial examples (AEs) attract extensive attention due to their inherent security-related properties of attacking Deep Neural Networks (DNNs) through carefully constructed modifications. Recently, they have been extended to video tasks. Human action recognition based on DNNs is a crucial task in video tasks. AEs of human action recognition models attract much focus and previous works demonstrated the vulnerability of AEs of human action recognition in the digital world. However, the adversarial videos for attacking human action recognition models in the physical world are still in the open stage. The design of physical adversarial videos is crucial for helping to evaluate the robustness of some critical applications based on human action recognition, e.g., surveillance and pedestrian detection. Unlike the digital attacks on action recognition models, the perturbations of physical adversarial videos should be motional but temporally consistent across each whole video. The attacks need to destroy the spatial interactions and temporal interactions in videos. Previously developed attacks for video models in the digital world are difficult to transfer to the physical world. In this paper, we close this gap, and we are the first to attack human action recognition models in the physical world. We first generate a dynamic mask via an improved object tracking method and then use the center location to construct a motion location map. Finally, gradient sharing method is used to generate temporally consistent perturbations and optimize the perturbations into robust patches. Experiments show that these patches can successfully attack a real-time human action recognition system, and the proposed approach has a 77.5% success rate in this setting.

Determining the Tectonic Implication Derived from Geophysical Data of Bahr An-Najaf Basin, SW Iraq

Free-air gravity, magnetic and topographic data derived from satellite imagery are used to study the main geological structures and features in the Bahr An-Najaf Area SW Iraq. A comparison between this map and gravitational and magnetic maps along with two profiles, each one on a map for the same location and direction. Both profiles show a decrease in values in the eastward direction of the two maps. The total magnetic intensity data of the study area are converted to reduction to pole data and drawn as a magnetic map. It is clear from the reduction to pole map that the rates of uplift and subsidence that occurred in the basement rocks are due to the faults in the Bahr An-Najaf region. The location of the Bahr An-Najaf Depression coincided with the negative anomalies on both the free-air gravity map and the reduction to pole magnetic map. Both maps are also used to define the important faults in the area, especially the Abu Jir Fault.

Spatial modeling for the potential location of a rubber processing factory in East Ogan Komering Ulu (OKU) Regency, South Sumatra Province

This study uses spatial modeling to determine the potential location of a rubber processing factory in East Ogan Komering Ulu (OKU), South Sumatra, Indonesia. This descriptive study used the map overlay method. Besides, this study also used six parameters, namely number of population, rubber plantation area, land slope, land suitability, river flow availability, and road network availability. Those six parameters were overlaid and scored to generate a map of the potential location for the rubber processing factory in East OKU, South Sumatra, Indonesia. Our analysis results suggest that the most potential location was 27.412 ha (9 percent), while the area with medium and low potential was 267.952 ha (86 percent) and 15.155 ha (5 percent), respectively. Generally, the pattern of the most potential area followed the road network pattern and river network in East OKU because both road and river facilitate the provision of water resources, as well as distribution of raw materials and produced products. These results can be used as a reference for the government of East OKU Regency in constructing the factory. Besides, this study can also be used as a Geography learning material in the course of map and mapping, as well as Geography Information System.

Penentuan Tipe Akuifer Daerah Bulontala Kabupaten Bone Bolango Menggunakan Metode Geolistrik

Research area Geographically, the location is at 0ᵒ31'0''N - 0ᵒ31'30'' North Latitude 123ᵒ8'0'' - 123ᵒ8'30'' East Longitude with an area of ± 22.02 km. The research location is an andesite lava hill unit. because the type of rock found at that location is andesite igneous rock. The purpose of this study is to determine the type or type of aquifer. The method used is in the form of collecting surface and subsurface geological data. The method used is the geoelectric method with the Schlumberger configuration. The results of the research for geological mapping of the research location have morphology in the form of volcanic plains and hills with an altitude of 200 meters above sea level. The statigraphic sequence at the research site is sorted from easy to leader, old unit in the form of Andesite and easy unit in the form of alluvial. As for the geological structure that plays a role in the study, the dominant direction is from the north to the south.Groundwater at the research site follows the topography of the research location which flows from south to north where the water flows from upstream to downstream, from high to low elevation points. based on the results of geoelectric research and well water data collection that the aquifer at that location is shallow with alluvial material types, sand and andesite igneous rocks.The type of aquifer at the research site obtained from geoelectric research is a free aquifer type (not compressed) and only has 1 boundary layer, namely andesite igneous rock.

Geographical synthesis of the landscape in Vista Hermosa, Acapulco

Worldwide, human activity is becoming more frequent and intense, which brings with it changes in the vegetation cover and land use. Hence, the objective of the essay was to contribute to the existing literature on Vista Hermosa, Acapulco. Through, exposing the current characteristics of the elements of nature and their interrelation with land uses promoted by local residents. The methodology used was: consultation, review and selection of documentary, statistical-cartographic materials, both printed and digital, on the area under study and the method used was the integrated analysis of the landscape. Results: location map of the area and 2) a geographic-ecological diagnosis of the landscape. The conclusions obtained were: i) the site that shows a wide sustainable tourism potential and ii) high probability of local development based on its natural attributes to meet the expectations of economic progress in situ.

Multilayer Reversible Information Hiding with Prediction-Error Expansion and Dynamic Threshold Analysis.

The rapid development of internet and social media has driven the great requirement for information sharing and intelligent property protection. Therefore, reversible information embedding theory has marked some approaches for information security. Assuming reversibility, the original and embedded data must be completely restored. In this paper, a high-capacity and multilayer reversible information hiding technique for digital images was presented. First, the integer Haar wavelet transform scheme converted the cover image from the spatial into the frequency domain that was used. Furthermore, we applied dynamic threshold analysis, the parameters of the predicted model, the location map, and the multilayer embedding method to improve the quality of the stego image and restore the cover image. In comparison with current algorithms, the proposed algorithm often had better embedding capacity versus image quality performance.

Spectroscopic Investigation, DFT Calculations, anti-Inflammatory Activity and Molecular Dynamic Simulation Study on Fagaramide Alkaloid

Fagaramide (FA) alkaloid was investigated experimentally using FT-IR, FT-Raman and NMR (1H and 13C) spectra, also theoretically studied using density functional theory (DFT) calculations. To obtain the ground state geometry and vibrational frequencies of FA molecule, DFT calculations were performed at the B3LYP/6-31++G(d,p) level. The potential energy distribution (PED) analysis of the title molecule was obtained with the help of normal co-ordinate analysis (NCA) and these assignments were compared with the experimental FT-IR and FT-Raman spectrum. The natural bond orbital (NBO), reduced density gradient (RDG) and Hirshfeld surface analysis were applied to evaluate the relative strength of hydrogen bond interaction and to represent their effect on the stabilization of molecular arrangements. Electron localization function (ELF) and localized orbital locator (LOL) maps were generated to show electron delocalization in the molecule. The reactivity of the molecule was studied by the investigation of frontier molecular orbital analysis, density of states (DOS), molecular electrostatic potential (MEP) and chemical reactivity descriptors. Furthermore, through molecular docking, the anti-inflammatory activity of FA was studied and discussed. A molecular dynamic simulation (MDS) was employed to explore biomolecular stability.

Imported tires; a potential source for the entry of Aedes invasive mosquitoes to Iran

IntroductionInternational trade of tires has been responsible for the introduction of invasive Aedes species into many countries. The present study aimed to determine the sources and volume of such trading in Iran and to establish and map points of entry for entomological surveillance. MethodA list of tire importers, type and number of tires and source of their shipment was compiled, and the map of the main location(s) of their depot in the country was produced from 2017 to 2018. Contamination of imported tires with mosquito eggs or larvae was also determined. The samples from all parts of the warehouse were taken randomly from 4 to 20 tires every 15 days. In tires with a trace of water inside, the existence of the egg and larva of Aedes mosquitoes was investigated by sticking the glue band to the hot spot of left water inside the unpacked tires. ResultsApproximately one-third of the annual tire requirements of Iran were imported from 15 countries, most of which were endemic to Aedes aegypti and or Ae. albopictus. It is obligatory to import only wrapped tires. About 10% of total country consumption is imported through informal markets and smuggled. However, the unofficially imported tires are usually not wrapped. The majority of tire imports were made through the southern ports of the country. The main sites for depots of imported tires were located in four Iranian provinces, namely Tehran, Isfahan, Fars, and Sistan and Baluchestan. The latter is extremely important given its border with Pakistan. Depot locations were mostly unstructured, and tires were kept in the open air. All these depot locations were at the edge of towns and residential areas. Priority areas for routine entomological surveillance were established. Such as the previous studies, surveillance of imported tires for the presence of Aedes eggs or larvae was negative in this study. DiscussionMapping the entry points of imported tires and their origin is crucial to determine and prioritize sites for entomological surveillance of invasive mosquito species. Strengthening collaboration with customs authorities and the association of tire importers is imperative in this effort. The development of national rules and regulations for tire import is necessary to minimize the danger of the introduction of invasive vector species into the country.

P624: CHROMOTHRIPSIS IN PATIENTS WITH CLL AND COMPLEX KARYOTYPE: PATTERNS OF ABERRATIONS AND PROGNOSTIC VALUE

Background: Chromothripsis is a unique catastrophic event found in 1-5% of chronic lymphocytic leukemia (CLL) patients, associated with poor prognostic factors and short survival (Edelmann et al, 2012; Puente et al, 2015; Leeksma et al, 2021). It is characterized by the presence of multiple genomic rearrangements in one chromosome, resulting in oscillating switches between 2-3 copy number states by chromosomal microarrays (CMA) or next-generation sequencing (Stephens et al, 2011). Optical genome mapping (OGM) is a new method based on the imaging of long DNA molecules (>250kb) labelled at specific motifs, generating a unique pattern. This allows mapping of the genomic location of each molecule and detection of structural and numerical chromosomal abnormalities with high resolution and sensitivity. Aims: 1. To analyze the genome complexity associated with chromothripsis and the patterns of rearrangements detected by OGM; 2. To determine the prognostic impact of chromothripsis in a cohort of CLL patients enriched in complex karyotypes (CK). Methods: A total of 33 patients with chromothripsis detected by CMA were included: 11 with chromothripsis-like patterns (≥7 switches), 22 with classical chromothripsis (≥10 switches). Nine of the cases were studied with OGM (Bionano Genomics). Clinico-biological features and time to first treatment (TTFT) were analyzed. Results were compared with a cohort of 129 patients showing CK without chromothripsis (control group) (Ramos-Campoy et al, 2021). Results: All patients with chromothripsis showed a high genomic complexity (30/33 with CK by chromosome banding analysis and 3/33 classified as complex by CMA [range: 10-24 CNV, being at least three of them >5Mb (range: 3-6)]. Forty-six chromothriptic events were identified. These affected 1-4 chr/patient, but a single chromosome was involved in 25/33 patients (76%). Chromothripsis was distributed throughout all chromosomes, most frequently affecting 3 (n=5), 6 (n=5) and 13 (n=5). The events were mainly multiple losses (25/46) or alternated gains and losses (19/46). Size and coordinates of CNVs detected by OGM and CMA were highly concordant. OGM detected multiple rearrangements cryptic by CMA (median: 9/chromothriptic event). Two patterns of chromothripsis-related rearrangements were identified: one clustered in the chromothriptic region (3/9) and the other involving both chromothriptic and non-chromothriptic chromosomes (range: 1-6 chr) (6/9). One patient showed 36 rearrangements throughout the genome, suggesting the coexistence of chromothripsis and chromoplexy, characterized by the presence of multiple chained translocations (Figure). Patients with chromothripsis showed a higher frequency of TP53del/mut (70% vs 39%; p=0.001) and a shorter TTFT (15m vs 2m; p=0.013) than the control group. No differences were observed for IGHV and del(11q) status. When stratifying patients based on TP53 status, the presence of chromothripsis was not associated with shorter TTFT. In the multivariate analysis including TP53, genomic complexity by CMA and chromothripsis, only TP53 was statistically significant (HR=1.6; p=0.029). Image:Summary/Conclusion: 1. Chromothriptic events involve multiple loci in CLL patients; 2. OGM allows not only the detection of CNV but also the identification of two rearrangement patterns associated with chromothripsis (clustered or involving non-chromothriptic chromosomes) whose clinical impact should be further explored. 3. In CLL patients with CK, the adverse prognosis of chromothripsis is associated with a higher frequency of TP53del/mut.

Elucidating macular structure–function correlations in glaucoma

Correlation between structural data from optical coherence tomography and functional data from the visual field may be suboptimal because of poor mapping of OCT measurement locations to VF stimuli. We tested the hypothesis that stronger structure–function correlations in the macula can be achieved with fundus-tracking perimetery, by precisely mapping OCT measurements to VF sensitivity at the same location. The conventional 64 superpixel (3° × 3°) OCT grid was mapped to VF sensitivities averaged in 40 corresponding VF units with standard automated perimetry (conventional mapped approach, CMA) in 38 glaucoma patients and 10 healthy subjects. Similarly, a 144 superpixel (2° × 2°) OCT grid was mapped to each of the 68 locations with fundus-tracking perimetry (localized mapped approach, LMA). For each approach, the correlation between sensitivity at each VF unit and OCT superpixel was computed. Vector maps showing the maximum correlation between each VF unit and OCT pixel was generated. CMA yielded significantly higher structure–function correlations compared to LMA. Only 20% of the vectors with CMA and < 5% with LMA were within corresponding mapped OCT superpixels, while most were directed towards loci with structural damage. Measurement variability and patterns of structural damage more likely impact correlations compared to precise mapping of VF stimuli.

Crafts and Folk Art Tourism Development in Chiang Mai Towards UNESCO Creative Cities Network Membership

The purposes of research were 1) to survey resources and to create a location map of crafts and folk art communities in Chiang Mai Province; 2) to assess tourism potential and readiness of community capital as creative tourist attractions in Chiang Mai Province; 3) to propose the guidelines for the model craft community development in Chiang Mai towards UNESCO creative cities network membership for supporting creative tourism; and 4) to propose the guidelines for the development of community and network management towards UNESCO creative cities network membership for supporting creative tourism. This research was a mixed method study by using the qualitative study method for collecting the data from interview, focused group, and participatory and non-participatory observation; and the quantitative method for collecting the data from a questionnaire according to the study objectives. The study results are presented in a descriptive form and are summarized as follows.&#x0D; &#x0D; 1) Survey on resources and creation of a location map of crafts and folk art communities in Chiang Mai Province: The distinctive resources in crafts and local art of each community are classified into 7 categories: 1) pottery and casting work, 2) fabric and embroidery, 3) wood carving and products, 4) basketry, 5 paperwork, 6) metal embossment, and 7) lacquerware. The locations of the craft communities in Chiang Mai are in 3 areas: 1) location in Chiang Mai City (inner area of the city wall), 2) location near Chiang Mai City (outer area of the city wall), and location far from Chiang Mai City (outer area of Mueang District). &#x0D; &#x0D; 2) Assessment on tourism potential and readiness of community capital for being creative tourist attractions in Chiang Mai Province: The overall result of all 4 aspects in tourism potential and readiness of community capital as creative tourist attractions in Chiang Mai Province was found at the high level (x &amp;nbsp;= 3.69). In each aspect, the highest mean was in management (x &amp;nbsp;= 3.79), followed by cultural identity (x &amp;nbsp;= 3.78), creative entrepreneurs (x &amp;nbsp;= 3.62), and space and facility (x &amp;nbsp;= 3.56) respectively. &#x0D; &#x0D; 3) Proposed guidelines for the model craft community development in Chiang Mai Province towards UNESCO creative cities network membership for supporting creative tourism: The guidelines for the model craft community development towards UNESCO creative cities network membership for supporting creative tourism consist of 4 factors. &#x0D; &#x0D; 4) Proposed guidelines for the development of community and network management towards UNESCO creative cities network membership for supporting creative tourism: The model for the development of community and network management towards UNESCO creative cities network membership for supporting creative tourism is known as &amp;ldquo;POLC of CM CREATION Model&amp;rdquo;.

Understanding the difference in combustion and flame propagation characteristics between ammonia and methane using an optical SI engine

As a carbon-free hydrogen-carrier fuel with a high content of hydrogen, ammonia (NH3) exhibits unfavorable combustion properties such as low flammability and large cyclic variations, requiring further investigation in actual engines. In this work, for the first time, using a single-cylinder optical spark ignition (SI) engine with a high compression ratio, engine performance as well as combustion and flame propagation characteristics were investigated. Synchronization measurement of in-cylinder pressure and high-speed photography was performed, and the combustion characteristics were compared between ammonia and methane under the same operating conditions. The results show that the combustion stability and power capability of ammonia are significantly lower than that of methane. Further analysis combining combustion phasing and flame propagation characteristics indicates that the burning time loss mainly comes from the initial flame development process rather than the main combustion duration which results in a deficit in engine performance. The average probability maps of the flame location indicate that the flame front propagation of the two fuels emerges with obviously different characteristics. Quantitative flame solving shows that NH3 flame propagation features a higher flame stretch sensitivity which is macroscopically reflected in the cyclic variations. Furthermore, the quantification of flame response to turbulence was solved and observed much higher effects for NH3 flame than methane, which indicates NH3 flame propagation is mainly driven by the flame response to turbulence while the flame propagation of methane exhibits higher sensitivity to temperature than ammonia. The current study shall provide insights into the application of ammonia in the internal combustion engine.

EFEKTIFITAS KINERJA SIMPANG TAK BERSINYAL BUNDARAN KELAPA GADING DENGAN SIMPANG BERSINYAL

The Kelapa Gading roundabout junction, North Jakarta is one of the unsignalized intersections with the roundabout. Traffic conditions that have a density in every arm, trigger traffic jams during rush hours. In this study, an analysis of the performance of the Kelapa Gading roundabout will be presented.Primary data includes geometric, environmental conditions, traffic flow and location maps. While secondary data includes population and vehicle growth in DKI Jakarta Province. The research method uses the formula contained in the 1997 MKJI and modeling using the Vissim Student Version softwareAfter evaluating the performance of the roundabout, it is found that the capacity, degree of saturation, delays and opportunities for queuing roundabouts. If the degree of saturation DS&gt;0.75 in one or several parts of the road can be changed to a signalized intersection. Key words: Kelapa Gading Roundabout, Signalized intersection, MKJI,

Study of suitability location of eel (Anguilla sp) culture in Sukabumi region, West Java province

The research objective is to evaluate the suitability status of the Sukabumi region to produce eel. The output is a spatial distribution map of suitable locations ecologically to develop Anguilla sp grow out. Spatial overlay and weighting methods were used to process the data of contour map, soil map, weather map, diurnal temperature map, season temperature map, and watershed map. Almost all of the Sukabumi region is 80% suitable relatively for developing Anguilla sp culture or 3.620 Km2. Very suitable location 873 Km2, suitable 1.926 Km2, marginal 821 Km2, and not suitable 541 Km2.

Prior information improves resolution

Statistical parameter estimation (1) has enabled nearly two decades of localization-based superresolution microscopy: fluorescent probes are imaged one by one, yielding estimates of molecular positions by fitting point spread function (PSF) models to the data. The map of fluorescent probe locations comprises an image in its own right, with resolution set by the precision of the molecular position estimates (2). A newer generation of superresolution techniques improve the resolution by augmenting image data with prior information on the likely positions of fluorescent molecules (3,4).

Determination of Empirical Environmental Indices for the Location of Cemeteries—An Innovative Proposal for Worldwide Use

Cemeteries are a source of environmental contamination, as they hold hundreds of human corpses in different stages of decomposition. Therefore, the current research developed a new tool, which is easily applied, to determine the potential environmental contamination generated by current cemeteries within their ecosystems. The linear equations developed, with a number of variables between 10 and 3, allow for obtaining empirical indices to evaluate the suitability of a site, regardless of the geographical area in which it is located, through a variety of sources. In order to obtain the equations and, therefore, the indices, a hierarchy was performed using the Saaty matrix. With such a matrix, different ranges of affectation were established for each variable and relative values were assigned that cover all probabilities quantitatively, from the least probable to the most likely. With the linear equations, three verification runs were conducted, obtaining satisfactory results compared with the location map of cemeteries obtained in previous studies. These equations will constitute a tool of fundamental use for local governments, which will allow for the evaluation of existing cemeteries and use of the methodology described in preliminary analysis, to save resources and have a starting point for an efficient land use plan.

Nineteenth- and twentieth-century brain maps relating to locations and constructions of brain functions

ABSTRACT This article is an outline of the transition in “brain maps” used to illustrate locations of cortical “centers” associated with movements, sensations, and language beginning with images from Gall and Spurzheim in the nineteenth century through those of functional magnetic resonance imaging in the twenty-first century. During the intervening years, new approaches required new brain maps to illustrate them, and brain maps helped to objectify and naturalize mental processes. One approach, electrical stimulation of the cerebral cortex—exemplified by Fritsch and Hitzig in 1870, Ferrier in 1873, and Penfield by 1937—required brain maps showing functional centers with expanded and overlapping boundaries. In another approach, brain maps that linked cortical centers to account for the complex syndromes of aphasia, apraxia, alexia, and agraphia were initially constructed by Baginsky in 1871, Wernicke in 1874, and Lichtheim in 1885, then later by Lissauer in 1890, Dejerine in 1892, and Liepmann in 1920, and eventually by Geschwind in 1965 and others through the late twentieth century. Over that intervening time, brain maps changed from illustrations of points on the cerebral cortex where movements and sensations were elicited to illustrations of areas (centers) associated with recognizable functions to illustrations of connections between those areas that account for complex symptoms occurring in clinical patients. By the end of this period, advancements in physics, mathematics, and cognitive science resulted in inventions that allowed brain maps of cortical locations derived from cognitive manipulations rather than from the usual electrical or ablative manipulations. “Mental” dependent variables became “cognitive” independent variables.

Penerapan GIS (Geographic Information System) Penunjuk Arah Lokasi Sekolah Terdekat Menggunakan Metode Haversine

Geographic information system is a location mapping information to find out the distance between one area to another. The system to be designed is implemented with computer software and hardware that is used for data verification, data storage, updating and changing data and analyzing data. The system will be designed to search for the location of the nearest school by applying GIS (Geographic Information System) and utilizing an Android smartphone. So far, this is still done manually by using maps in hard copy form or by asking other people directly. However, information about the location of the nearest school is very ineffective when asked to the nearest community. For this reason, it is necessary to have a system designed to find digital-based school locations. The application is designed using android studio and a database used by mysql to store information about schools. The application to be implemented must use an internet connection so that the GPS (Global Positioning System) can run properly.