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Journal articles on the topic 'Ordered Cluster Sampling'

Author: Grafiati

Published: 8 September 2023

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1

Barua, Prabal, and Syed Hafizur Rahman. "LIVELIHOOD SECURITY DETERMINANTS OF THE ORGANIC FARM HOUSEHOLD IN SOUTH-EASTERN COAST OF BANGLADESH." Food & Agribusiness Management 2, no. 1 (2020): 01–05. http://dx.doi.org/10.26480/fabm.01.2021.01.05.

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Organic farming is a method of crop and livestock production that that sustains the demands of production of healthy and safe food for the community. Bangladesh is now highly productive area for agriculture production in the world with large varieties of agriculture crops are vultivating here. The study employed ordered logistic regression to assessed the determinants of livelihood security of the organic farm households in the south-eastern coast of Bangladesh. The study was conducted in three upazilas of Chattogram district like Banskhali, Anwara and Sitakund. Multistage sampling technique w

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2

Pallanca, Cristina, Silvia Leanza, Francesco R. Ferraro, et al. "Internal Kinematics and Structure of the Bulge Globular Cluster NGC 6569 ^∗." Astrophysical Journal 950, no. 2 (2023): 138. http://dx.doi.org/10.3847/1538-4357/accce9.

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Abstract In the context of a project aimed at characterizing the properties of star clusters in the Galactic bulge, here we present the determination of the internal kinematics and structure of the massive globular cluster NGC 6569. The kinematics has been studied by means of an unprecedented spectroscopic data set acquired in the context of the ESO-VLT Multi-Instrument Kinematic Survey of Galactic globular clusters, combining the observations from four different spectrographs. We measured the line-of-sight velocity of a sample of almost 1300 stars distributed between ∼0.″8 and 770″ from the c

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3

Treml, Leonardo De Marino, Anadia Cattarin, Renato Marques, Franklin Galvão, Lucas Batista Crivellari, and Vinicius Morais Coutinho. "FLORISTIC SIMILARITY IN A FOREST-SAVANNAH ECOTONE IN WESTERN BAHIA STATE, BRAZIL." FLORESTA 52, no. 4 (2022): 475. http://dx.doi.org/10.5380/rf.v52i4.80286.

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This study aimed to generate knowledge about transition areas between phytophysiognomies for the understanding and conservation of these unique environments. Thus, the existence of different floristic groups was analyzed in a spatial gradient of an ecotone in the municipality of São Desidério, state of Bahia, Brazil. To this end, a transect of approximately 4.7 km, with orientation from Northeast to Southwest, was established along a spatial gradient. Twelve (12) 10x50 m sampling plots (500 m² each) were distributed throughout this transect. The following methodology was employed: First, the f

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4

Rabbi, Mohammad Fazle, Judit Oláh, József Popp, Domicián Máté, and Sándor Kovács. "Food Security and the COVID-19 Crisis from a Consumer Buying Behaviour Perspective—The Case of Bangladesh." Foods 10, no. 12 (2021): 3073. http://dx.doi.org/10.3390/foods10123073.

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Since COVID-19 was confirmed in Bangladesh in March 2020, the government have enacted stringent measures to prevent the spread of the coronavirus, which has had a significant impact on people’s lives. Food consumption habits of consumers have shifted as a result of declining grocery shopping frequency, negative income shock, and food prices shooting up. This paper aims to explore Bangladeshi consumers’ buying behaviour in association with the stress generated from a food supply shortage during the COVID-19 pandemic and the post-outbreak perception of the food industry, using a dataset with 540

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5

Bernacki, Katarzyna, Chakrapani Kalyanaraman, and Matthew P. Jacobson. "Virtual Ligand Screening against Escherichia coli Dihydrofolate Reductase: Improving Docking Enrichment Using Physics-Based Methods." Journal of Biomolecular Screening 10, no. 7 (2005): 675–81. http://dx.doi.org/10.1177/1087057105281220.

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Motivated by their participation in the McMaster Data-Mining and Docking Competition, the authors developed 2 new computational technologies and applied them to docking against Escherichia coli dihydrofolate reductase: a receptor preparation procedure that incorporates rotamer optimization of side chains and a physics-based rescoring procedure for estimating relative binding affinities of the protein-ligand complexes. Both methods use the same energy function, consisting of the all-atom OPLS-AA force field and a generalized Born solvent model, which treats the protein receptor and small-molecu

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Zakka, Kaku, and Romy O. Okoye. "COMPARISON OF RELIABILITY COEFFICIENTS OF TESTS CONSTRUCTED USING DIFFERENT ORDERINGS OF DIFFICULTY OF TEST ITEMS." International Journal of Education and Social Science Research 06, no. 03 (2023): 248–55. http://dx.doi.org/10.37500/ijessr.2023.6321.

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The study compared reliability coefficients of tests constructed using different orderings of difficulties of test items for English language and Mathematics in the North-East, Nigeria. Experimental research design was adopted. The population of the study comprised all the 5,403 JSS 3 students of 2021/2022 academic session in the fifteen Unity schools of the zone. The sample used for experimental study consisted of three hundred and seventy-five students obtained through a combination of multi-stage and cluster sampling techniques. Two instruments (one for each of the subjects) were used for t

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7

Harsej, Zahra, Nasrin Mokhtari Lakeh, Farzaneh Sheikholeslami, and Ehsan KazemnezhadLeili. "Internet Addiction and Its Relationship with Family Functioning in High School Students." Journal of Holistic Nursing And Midwifery 31, no. 1 (2021): 44–52. http://dx.doi.org/10.32598/jhnm.31.1.2025.

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Introduction: Family-related factors play an important role in adolescent’s addiction to the Internet. Objective: The aim of this study was to examine the relationship between Internet addiction and family functioning in high school students. Materials and Methods: This is an analytical study with a cross-sectional design conducted on 796 high school students in Rasht city, Iran who were selected using multi-stage cluster random sampling method. Data collection tools were a demographic form, the Young’s Internet Addiction Test, and the Family Assessment Device. Chi-Square test and rank-ordered

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8

Kaveh, Sepideh, Abbas Assari Arani, Sajjad Faraji Dizaji, and Seyed Hasan Hoseini. "Determinants of Subjective Well-being: Do we Really Know What Makes People Happy? A Study on Rasht Metropolis, North of Iran." Journal of Research & Health 11, no. 1 (2021): 11–20. http://dx.doi.org/10.32598/jrh.11.1.1691.1.

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Background: Background: Recently, along with traditional economic indicators, policymakers are increasingly dealing with Subjective Well-Being (SWB) as an evaluation criterion of their performance and as an index for the population’s psychology health. This was done to define different determinants of SWB with a focus on some specific aspects of the living area. Also, this article investigateed the effect of urban and outskirts area on SWB. Method: This study is a cross-sectional study based on a structured interview and the samples (219 people ) were selected by a two-stage cluster sampling m

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9

Bergendahl, M., A. Iranmanesh, W. S. Evans, and J. D. Veldhuis. "Short-Term Fasting Selectively Suppresses Leptin Pulse Mass and 24-Hour Rhythmic Leptin Release in Healthy Midluteal Phase Women without Disturbing Leptin Pulse Frequency or Its Entropy Control (Pattern Orderliness)1." Journal of Clinical Endocrinology & Metabolism 85, no. 1 (2000): 207–13. http://dx.doi.org/10.1210/jcem.85.1.6325.

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Nutritional signals strongly regulate neuroendocrine axes, such as those subserving release of LH, GH, and TSH, presumptively in part via the adipocyte-derived neuroactive peptide leptin. In turn, leptin release is controlled by both acute (fasting) and long-term (adipose store) nutrient status. Here, we investigate the neuroendocrine impact of short-term (2.5-day) fasting on leptin release in healthy young women studied in the steroid-replete midluteal phase of the normal menstrual cycle. Eight women each underwent 24-h blood sampling at 10-min intervals during a randomly ordered 2.5-day fast

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10

Marwiya, Arfatul, Zulkifli Zulkifli, Sugito Sugito, and Muslim Muslim. "ANALISIS ESTETIS KARYA KERAJINAN KAIN PERCA SISWA KELAS VII SMP NEGERI 1 BERINGIN KABUPATEN DELI SERDANG." Gorga : Jurnal Seni Rupa 7, no. 2 (2018): 267. http://dx.doi.org/10.24114/gr.v7i2.11894.

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AbstrakPenelitian ini bertujuan untuk meningkatkan hasil belajar siswa pada pelajaran prakarya, khususnya pada materi pelajaran kerajinan limbah kain perca dan mengetahui pemanfaatan limbah kain perca menjadi produk kerajinan tangan kain perca sarung kotak tisu dan mengetahui kualitas estetis karya kerajinan tangan kain perca sarung kotak tisu yang dihasilkan siswa kelas VII SMP Negeri 1 Beringin Kabupaten Deli Serdang. Penelitian ini menggunakan metode penelitian kualitatif dengan sampel 20 karya kerajinan kain perca sarung kotak tisu siswa kelas VII yang diambil menggunakn teknik Cluster Ran

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11

Liu, Minshi, Yi Long, Ling Zhang, and Guifang He. "A Method for extracting multi-scale stay feature of trajectory based on OPTICS." Abstracts of the ICA 1 (July 15, 2019): 1. http://dx.doi.org/10.5194/ica-abs-1-222-2019.

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<p><strong>Abstract.</strong> With the popularity of mobile positioning devices, mobile trajectory data is rapidly increasing. The trajectory stay feature extraction is to find the staying part of the moving object from the moving trajectory, which is the basis of the semantic matching of the staying segment. The trajectory stay segment extraction can be used to analyze tourist visit recommendation and mode, special landmark extraction such as gas station, destination prediction, rental car passenger advice, and even traffic guidance. Most existing researches extract the sing

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12

Ding, Yao, Yin Wang, Shuming Yang, Xiaolong Zhao, Lili Ouyang, and Chengyue Lai. "Evaluating Surface Water Nitrogen Pollution via Visual Clustering in Megacity Chengdu." Water 15, no. 11 (2023): 2113. http://dx.doi.org/10.3390/w15112113.

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The current standards used for nitrogen pollution evaluation are lacking, and scientific classification methods are needed for nitrogen pollution to improve water quality management capabilities. This study addresses the important issue of assessing surface water nitrogen pollution by utilizing two advanced multivariate statistical techniques: self-organizing maps (SOMs) obtained using the K-means algorithm and the Hasse diagram technique (HDT). The research targets of this study are the rivers of the megacity Chengdu, China. Samples were collected on a monthly basis in 2017–2020 from differen

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13

Jones, Laurel, Michael Tynes, and Paul Smith. "Prediction of models for ordered solvent in macromolecular structures by a classifier based upon resolution-independent projections of local feature data." Acta Crystallographica Section D Structural Biology 75, no. 8 (2019): 696–717. http://dx.doi.org/10.1107/s2059798319008933.

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Current software tools for the automated building of models for macromolecular X-ray crystal structures are capable of assembling high-quality models for ordered macromolecule and small-molecule scattering components with minimal or no user supervision. Many of these tools also incorporate robust functionality for modelling the ordered water molecules that are found in nearly all macromolecular crystal structures. However, no current tools focus on differentiating these ubiquitous water molecules from other frequently occurring multi-atom solvent species, such as sulfate, or the automated buil

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14

Chandra, Girish, Neeraj Tiwari, and Raman Nautiyal. "Two stage adaptive cluster sampling based on ordered statistics." Advances in Methodology and Statistics 16, no. 1 (2019). http://dx.doi.org/10.51936/wuqh7533.

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The estimation problem on sparsely distributed populations using adaptive cluster sampling (ACS) is discussed. In the first phase of ACS, two stage sampling is used in which primary and secondary sampling units are selected using simple random sampling without replacement. The idea of Thompson (1996) is introduced in order to choose an appropriate fixed value of pre-specified condition, which might represent the number of rare species, before conducting the survey by the use of order statistics. Different estimators of the population mean under the two possible schemes (open and closed boundar

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15

Mimar, Sayat, and Gourab Ghoshal. "A sampling-guided unsupervised learning method to capture percolation in complex networks." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-07921-x.

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AbstractThe use of machine learning methods in classical and quantum systems has led to novel techniques to classify ordered and disordered phases, as well as uncover transition points in critical phenomena. Efforts to extend these methods to dynamical processes in complex networks is a field of active research. Network-percolation, a measure of resilience and robustness to structural failures, as well as a proxy for spreading processes, has numerous applications in social, technological, and infrastructural systems. A particular challenge is to identify the existence of a percolation cluster

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16

Rana Ejaz Ali Khan, Tusawar Iftikhar Ahmad, Sara Noreen, and Aymen Ejaz. "Factors associated with the quality of antenatal care (ANC) services use in Bahawalpur." Journal of the Pakistan Medical Association, October 14, 2020, 1–8. http://dx.doi.org/10.47391/jpma.645.

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Abstract A cross sectional study was conducted from October 2016 to February 2017 with the aim to examine the factors affecting the quality of antenatal care (ANC) services being used in Bahawalpur district. Data was collected using the Stratified cluster sampling technique from 1,650 married women of reproductive age (15-49 years) who had given birth to at least one child in four preceding years. Information regarding socioeconomic aspects and the ANC services used during pregnancy were recorded through interviews. The quality of ANC services being used was measured through constr

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17

Cheng, Minghui, Wenli Su, Huiju Li, et al. "Factors influencing the social participation ability of rural older adults in China: A cross-sectional study." Frontiers in Public Health 10 (January 4, 2023). http://dx.doi.org/10.3389/fpubh.2022.1001948.

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ObjectiveTo investigate the epidemiology and influencing factors of social participation ability of rural older adults in China.MethodsFrom March to April 2021, 3450 older adults in poverty aged 60 and above registered in Jishishan County (J County) were selected by cluster sampling for a cross-sectional questionnaire survey and their social participation ability was assessed using the Ability Assessment of older adults (MZ/T039-2013). The results were statistically analyzed and an ordered multi-category logistic regression analysis was used to analyze the effect of influencing factors on the

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18

Wang, Shuhong, Hongjun Zhao, and Zesheng Sun. "Working intentions of medical students in response to healthcare workplace violence and descending resources reform in China." BMC Medical Education 22, no. 1 (2022). http://dx.doi.org/10.1186/s12909-022-03428-1.

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Abstract Background In order to curb healthcare workplace violence (WPV) and better allocate healthcare resources, China launched the descending resources reform in 2013 and tightened the anti-violence legal environment simultaneously. Medical students are expected to reconsider their working intentions of entering the medical market (inter-market effect) and choosing high- or low-level hospitals (intra-market effect) in response to the evolving WPV. The goal of this study was to explore the link between the perceived WPV incidence and medical students’ willingness to practice medicine in the

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19

Onyemma, Juliet Ogadinma, Koko Michael Tertsea, Nkem Kelechi Ogbonna, and Nwafor Solomon Chimela. "Level of Adoption of Improved Cassava Technologies in Benue State." Journal of Applied Life Sciences International, June 14, 2019, 1–13. http://dx.doi.org/10.9734/jalsi/2019/v21i230099.

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Aims: The study aimed to determine the level of adoption of improved cassava technologies in Benue State. Study Design: The Survey design was adopted for the study. Place and Duration of Study: The study was carried out in Benue State, between September 2018 and March 2019. Methodology: Cluster and simple random sampling techniques were used to select 336 respondents for the study. Primary data were collected using Semi-structured questionnaire. The objectives were achieved using descriptive statistics such as percentages, frequencies and means and Rank ordered analysis.&#x0D

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20

Shahbaz, Pomi, Shamsheerul Haq, Azhar Abbas, et al. "Role of farmers’ entrepreneurial orientation, women’s participation, and information and communication technology use in responsible farm production: a step towards sustainable food production." Frontiers in Sustainable Food Systems 7 (August 29, 2023). http://dx.doi.org/10.3389/fsufs.2023.1248889.

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Responsible production is essential for sustainable development and for ensuring global food security. The concept of responsible production has been well studied in other sectors of the economy, but has yet to gain recognition in the agricultural sector. Therefore, this study examined responsible production in the context of agriculture and the factors affecting responsible farm production in the developing country of Pakistan. Face-to-face interviews were conducted to collect data from 196 farmers selected using the multistage random sampling method. An independent sample t-test, chi-square

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21

Huang, Feifei, Wenxiu Sun, Yonglin Li, Lin Zhang, and Wei-Ti Chen. "Modification and validation of the COVID-19 stigma instrument in nurses: A cross-sectional survey." Frontiers in Psychology 14 (August 18, 2023). http://dx.doi.org/10.3389/fpsyg.2023.1084152.

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BackgroundNurses taking care of patients with infectious diseases have suffered from noticeable societal stigma, however currently, there is no validated scale to measure such stigma. This study aimed to revise and validate the COVID-19 Stigma Instrument-Nurse-Version 3 (CSI-N-3) by using item response theory (IRT) as well as classical test theory analysis.MethodsIn phase I, the Chinese CSI-N-3 was modified from the English version of HIV/AIDS Stigma Instrument-Nurse based on standard cross-cultural procedures, including modifications, translation/back translations, pilot testing, and psychome

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