scholarly journals Applying geostatistical determine distribution map of upper pleistocene aquifer (qp3) in Hau Giang Province

2016 ◽  
Vol 19 (1) ◽  
pp. 106-115
Author(s):  
Viet Hoang Quoc Lam ◽  
Sang Thanh Tra ◽  
Dung Quoc Ta

Mapping the distribution aquifer is an urgent problem for the management agency and researchers about groundwater resources. Although the model of the aquifers have become common in the study and management of groundwater, but most of use the classic interpolation method with high reliability. Based on stratigraphic division by age and sedimentary origin and application of geostatistical theory, this study presents the process of selecting the most suitable interpolation method and given the predictive results distribution upper Pleistocene aquifer (qp3) of Hau Giang province with high reliability. The study results showed that geostatistical is a effective solutions and appropriate in the problem with the spatial information and the origin of the research subjects.

2019 ◽  
Vol 2 (4) ◽  
pp. 184-190
Author(s):  
Hai Hong Dao ◽  
Tu Dinh Nguyen

The impact of climate change and over exploitation reduced the quality and groundwater reserves of the Ca Mau peninsula. This study used the GALDIT index to assess the vulnerability of groundwater resources due to salinity intrusion under exploitation and sea level rise. The GALDIT index results showed that the damage caused by the salinity intrusion of the Middle - Upper Pleistocene aquifer (qp2-3)was from moderate to high. The most vulnerable areas were Ca Mau and Soc Trang, accounting for 54.52% of the studied area, the average vulnerabbe areas were Kien Giang and Bac Lieu. This result could be used as a basis for policy planning, exploitation and utilization of sustainable groundwater resources, and to develop appropriate recommendations for people in the studied area.


Assessment ◽  
2020 ◽  
pp. 107319112097338
Author(s):  
Naheed Ahmed

Background: Hate crimes against Muslim Americans have increased exponentially in the past 20 years, but there is currently no scale for measuring perceived anti-Muslim discrimination in the United States. To fill this gap, this study used a mixed-method approach to develop scales for measuring perceived anti-Muslim discrimination. Method: Qualitative data informed the development and validation of the 19-item Societal Anti-Muslim Discrimination Index and the 9-item Interpersonal Anti-Muslim Discrimination Index. Quantitative data ( N = 347) were collected from Muslim Americans using an online survey and used to assess the anti-Muslim indexes. Results: Qualitative data contributed to the refinement scale items. Quantitative results indicated one-component models and modest to high reliability of the Interpersonal Anti-Muslim Discrimination Index (.77) and Societal Anti-Muslim Discrimination Index (.88) scales. Discussion: Study results established the validity of these novel scales for measuring the distinct facets of anti-Muslim discrimination not captured by the Everyday Discrimination Index. These scales will facilitate research on anti-Muslim discrimination and the health implications of this form of religious-based discrimination.


Author(s):  
Chih-Wei Lin ◽  
Ching-Chi Wu ◽  
Jen-Wei Chen ◽  
Bo-Hao Lai ◽  
Su-Shiang Lee ◽  
...  

Objective - This study examines the relationship between perceived stress, athletic burnout and leisure amongst badminton players. Methodology/Technique - The research subjects were all first national ranking tournament badminton players in 2012. The study uses convenience sampling to conduct a questionnaire survey. 350 questionnaires were distrubuted, with 288 valid questionnaires being returned (male 195, female 93). The rate of effectiveness was 82%. All of the data collected was analyzed using descriptive statistic and hierarchical regression analysis. Findings – The research subjects were all first national ranking tournament badminton players in 2012. The study uses convenience sampling to conduct a questionnaire survey. 350 questionnaires were distrubuted, with 288 valid questionnaires being returned (male 195, female 93). The rate of effectiveness was 82%. All of the data collected was analyzed using descriptive statistic and hierarchical regression analysis. Novelty – The study highlights that badminton players who participate in leisure-based activities are able to effectively adjust their perception of pressure to a "reduced sense of accomplishment" which has an effect on athletic burnout. Additionally, the study results give rise to variety of proposed solutions or suggestions for dealing with burnout or stress. Type of Paper - Empirical Keywords: Hierarchical Regression Analysis; Sources of Stress; Leisure; Badminton Players. JEL Classification: M10, Z20.


2021 ◽  
Vol 1 (1) ◽  
pp. 35
Author(s):  
Michaella Prawatya

<p>The Nursery Sunday School of GBI Tanah Abang was accustomed to share God’s words by story telling method. Nevertheless, the method raised issues, where the children easily got bored and their faith as well as social behavior were not improved. Based on those issues, the teacher was eager to look for improvement by carrying out classroom action research through active play method. This study aimed at: (1) describing the implementation of active playing method, (2) analyzing children’s faith and social behaviors, (3) identifying the obstacles of active-play method’s implementation. Prior to this study, seven children were chosen as research subjects to participate in three cycles. The data was obtained by observation, field notes, teacher’s interview, lesson plan documentation, and parents’ questionnaires. The study results: (1) improving actions are done according to the active playing method sequences with improvements on the next cycle (2) 86% of all students achieve high level of faith behavior (3) 71% of all students reach intermediate to high level of social behavior (4) arising obstacles are the limitations of students in communication, lack of knowledge and preparation of teachers regarding to playing method, learning time constraints, as well as the limitations of existing facilities.</p><p><strong>BAHASA INDONESIA ABSTRACT: </strong>Sekolah minggu GBI Tanah Abang memiliki kelas untuk anak usia Balita, di mana, firman Tuhan biasa dibagikan dengan menggunakan metode bercerita. Namun hal tersebut membuat anak-anak cepat bosan serta iman dan perilaku sosialnya tidak berkembang. Berdasarkan kerisauan guru tersebut maka dilakukan tindakan perbaikan berupa penelitian tindakan kelas dengan menerapkan metode bermain. Tujuan penelitian ini adalah: (1) mendeskripsikan penerapan metode bermain, (2) menganalisis perilaku iman dan sosial anak, (3) mengidentifikasi kendala-kendala dalam penerapan metode bermain. Penelitian ini dilaksanakan dalam tiga siklus, dengan subjek tujuh anak. Data didapat melalui  observasi, catatan lapangan, wawancara guru, dokumentasi RPP, dan kuesioner kepada orang tua. Setelah itu data dianalisis secara kualitatif deskriptif. Hasil dari penelitian ini menunjukkan: (1) tindakan perbaikan dilakukan sesuai dengan langkah metode bermain dengan penyempurnaan pada siklus berikutnya, (2) terlihat peningkatan perilaku iman hingga 86% siswa mencapai tingkat tinggi, (3) terlihat peningkatan perilaku sosial hingga 71% siswa mencapai tingkat sedang hingga tinggi, (4) kendala-kendala yang dihadapi antara lain keterbatasan siswa dalam berkomunikasi, kurangnya pengetahuan dan persiapan guru mengenai metode bermain, keterbatasan waktu pembelajaran, serta keterbatasan fasilitas yang ada.</p>


2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Pieter E. Stek

Portable water consumption in Kuala Lumpur and the surrounding area is expected to grow by 34% from 2005 to 2010. This increase in demand will be met by the construction of new reservoirs. However, reservoirs are dependent on rainfall and during prolonged periods of drought, as occurred in 1998, they could become empty. Therefore it is of great importance to develop alternative sources of water supply, including groundwater, to mitigate the effects of a serious water crisis. In this paper, results from a preliminary study on Kuala Lumpur's groundwater resources are presented. Modelling of the city's groundwater resources is extremely difficult given the limitations imposed by data availability and the karstic nature of some aquifers. Hence, the research presented here serves as a starting point for further studies rather than providing any definitive conclusions. In addition to the study results, the planning implications of groundwater extraction are discussed.


2020 ◽  
Vol 9 (4) ◽  
pp. 191 ◽  
Author(s):  
Juan José Ruiz-Lendínez

Several studies have demonstrated that farmland abandonment occurs not only in rural areas, but is also closely interlinked with urbanization processes. Therefore, the location of abandoned land and the registration of the spatial information referring to it play important roles in urban land management. However, mapping abandoned land or land in the process of abandonment is not an easy task because the limits between the different land uses are not clear and precise. It is therefore necessary to develop methods that allow estimating and mapping this type of land as accurately as possible. As an alternative to other geomatics methods such as satellite remote sensing, our approach proposes a framework for automatically locating abandoned farmland in urban landscapes using the textural characterization and segmentation of aerial imagery. Using the city of Poznań (Poland) as a case study, results demonstrated the feasibility of applying our approach, reducing processing time and workforce resources. Specifically and by comparing the results obtained with the data provided by CORINE Land Cover, 2275 ha (40.3%) of arable land within the city limits were abandoned, and the area of abandoned arable land was almost 9.2% of the city’s area. Finally, the reliability of the proposed methodology was assessed from two different focuses: (i) the accuracy of the segmentation results (from a positional point of view) and (ii) the efficiency of locating abandoned land (as a specific type of land use) in urban areas particularly affected by rapid urbanization.


Author(s):  
Rebecca Dresser

This chapter focuses on subject-centered developments in genetic research. Modern genetic research requires scientists to collect, store, and study DNA samples and health information from thousands of people. In the past, researchers have been allowed to use DNA samples and information without consent. Researchers have not been required to explain study results to subjects, nor have they been required to compensate people who contribute samples and health information to genetic studies. Experts developed these practices without input from the people whose contributions are essential to the genetic research enterprise. A growing amount of evidence shows that many research subjects and prospective subjects disagree with these traditional approaches. For ethical and practical reasons, subjects should have a greater role in determining how genetic research is conducted.


Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1573 ◽  
Author(s):  
Haojie Liu ◽  
Kang Liao ◽  
Chunyu Lin ◽  
Yao Zhao ◽  
Meiqin Liu

LiDAR sensors can provide dependable 3D spatial information at a low frequency (around 10 Hz) and have been widely applied in the field of autonomous driving and unmanned aerial vehicle (UAV). However, the camera with a higher frequency (around 20 Hz) has to be decreased so as to match with LiDAR in a multi-sensor system. In this paper, we propose a novel Pseudo-LiDAR interpolation network (PLIN) to increase the frequency of LiDAR sensor data. PLIN can generate temporally and spatially high-quality point cloud sequences to match the high frequency of cameras. To achieve this goal, we design a coarse interpolation stage guided by consecutive sparse depth maps and motion relationship. We also propose a refined interpolation stage guided by the realistic scene. Using this coarse-to-fine cascade structure, our method can progressively perceive multi-modal information and generate accurate intermediate point clouds. To the best of our knowledge, this is the first deep framework for Pseudo-LiDAR point cloud interpolation, which shows appealing applications in navigation systems equipped with LiDAR and cameras. Experimental results demonstrate that PLIN achieves promising performance on the KITTI dataset, significantly outperforming the traditional interpolation method and the state-of-the-art video interpolation technique.


2020 ◽  
Vol 3 (2) ◽  
pp. 87-93
Author(s):  
Siti Dwi Ifa Rochmawati ◽  
Junarti Junarti ◽  
Ifa Khoiria Ningrum

This article aims to determine the extent of the mathematical connection ability of the linear equations system of two variables in terms of the connection representation and procedural connections. This type of research uses a qualitative approach. This study's subjects were the students of class X MIPA 1 MA P2K Al Hidayah Lajukidul, which numbered 24 students. However, only six subjects were taken based on the level of mathematical connection ability high, medium, and low that had been selected by mathematics subject teachers based on students' ability to solve math story problems. The research instrument consisted of tests and interview questions. Data analysis techniques using the model of Miles and Huberman include data reduction, data presentation, and concluding. The study results showed that in question no. 1, all research subjects can represent connections and procedural connections, students can write mathematical symbols and answer questions using formulas correctly. In problem no.2, only the subject of high mathematical connection ability can connect representation and procedural connections. The other subject is not quite right in writing mathematical symbols. In question no.3, only subjects with low mathematical connection ability do not have representation and procedural connection skills; students only write what is known but is incomplete. In conclusion, the two-variable linear equation system's mathematical connection ability in terms of the connection representation and procedural connections are not evenly distributed.   Artikel ini bertujuan untuk mengetahui sejauhmana kemampuan koneksi matematis materi sistem persamaan linear dua variabel ditinjau dari koneksi representasi dan koneksi prosedural. Jenis penelitian ini menggunakan pendekatan kualitatif. Subjek penelitian ini adalah siswa kelas X MIPA 1 MA P2K Al Hidayah Lajukidul yang berjumlah 24 siswa tetapi hanya diambil 6 subjek berdasarkan tingkat kemampuan koneksi matematis tinggi, sedang, dan rendah yang telah dipilih oleh guru mata pelajaran matematika berdasarkan kemampuan siswa dalam menyelesaikan soal cerita matematika. Instrumen penelitian terdiri dari soal tes dan wawancara. Teknik analisis data menggunakan model Miles dan Huberman meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa pada soal  no. 1 semua subjek penelitian mempunyai kemampuan koneksi representasi dan koneksi prosedural, siswa mampu menuliskan simbol matematika dan menjawab soal menggunakan rumus dengan benar. Pada soal no.2 hanya subjek kemampuan koneksi matematis tinggi yang mempunyai kemampuan koneksi representasi dan koneksi prosedural, subjek yang lain kurang tepat dalam menuliskan simbol matematika. Pada soal no.3 hanya subjek kemampuan koneksi matematis rendah yang belum mempunyai kemampuan koneksi representasi dan prosedural, siswa hanya menuliskan apa yang diketahui tetapi tidak lengkap. Kesimpulannya kemampuan koneksi matematis materi sistem persamaan linear dua variabel ditinjau dari koneksi representasi dan koneksi prosedural belum merata.


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