scholarly journals Principle component analysis applied to high resolution cross sectional STEM imaging: Quantitative analysis of 2D heterostructures

Author(s):  
Aidan Rooney ◽  
Aleksey Kozikov ◽  
Eric Prestat ◽  
Freddie Withers ◽  
Andre Geim ◽  
...  
2020 ◽  
Author(s):  
Abdilahi Yousuf ◽  
Ramli Musa ◽  
Muhammad Lokman Md. ◽  
SitiRoshaidai Mohd Arifin

Abstract Background: Perceived Social Support which referred to an individual's extent of satisfaction regarding his/her necessary support, information, and interactions. According to (Procidano, 1983), PSS is a key element for understanding supportive behavior and is assumed to determine its association with depression. This 12-item scale is considered a substantial component that influences the emotional well-being of chronic patients. Hence, this paper is intended to validate the English version of Perceived Social Support among WLHIV. Methods: A facility-based cross-sectional study was conducted in WLHIV who attends the ART treatment of selected hospitals. A total of 357 attendees were recruited for a broader mixed-method designed study. The English version of PSS was translated into a national Somali language. The internal consistency was measured to analyze the reliability and Principle Component Analysis (PCA) was used to determine the validity of the study.Results: The findings of this study reveals that the PSS has shown a good internal consistency with Cronbach alpha greater than 0.60. Based on the principle component analysis, the validity construct of the scale was also measured showing a Varimax rotation of the components was successfully loaded and eigenvalue was greater than 1. Conclusion: This version, Perceived Social Support (PSS) is fit to be introduced in the health institutions for screening the level of support of chronic patients particularly its suitability for applications in the ART treatment services.


2019 ◽  
Author(s):  
beti nurbaiti

Ketidakmerataan fasilitas pembangunan antara satu daerah dengan daerah lain dapat diindikasikan dengan adanya arus migrasi penduduk sebagai refleksi perbedaan pertumbuhan ekonomi dan fasilitas publik antar daerah. Demikian halnya dengan DKI Jakarta, yang secara absolut jumlah penduduknya terus meningkat meski angka migrasi netonya negatif. Jumlah absolout penduduk yang meningkat ini disebabkan oleh jumlah migrasi yang masuk ke DKI Jakarta dari berbagai daerah lain di luar DKI Jakarta.Penelitian ini bertujuan untuk menganalisis pola tingkat kesejahteraan pekerja di Provinsi DKI Jakarta yang kemudian dikaitkan dengan variabel-variabel determinannya (status migrasi dan sosiodemografi lainnya). Lebih khusus lagi, tujuan penelitian ini adalah: 1). Menganalisis pola status kesejahteraan pekerja di DKI Jakarta; 2) Menganalisis status migrasi yang dapat mempengaruhi pola status kesejahteraan pekerja; 3). Menganalisis variabel-variabel sosiodemografi lainnya dalam mempengaruhi pola status kesejahteraan pekerja; dan 4). Menganalisis variabel-variabel interaksi antara status migrasi dan sosiodemografi lainnya dalam mempengaruhi pola status kesejahteraan pekerja di Provinsi DKI Jakarta.Dengan menggunakan sumber data basis (raw data) Survei Sosial Ekonomi Nasional (Susenas) 2013, penelitian ini melakukan analisis dengan dua tahap: 1) Tahap pembentukan variabel tingkat kesejahteraan pekerja dengan menggunakan PCA (Principle Component Analysis) atau SEM 2) Tahap analisis tabulasi silang dan regresi multinomial logistik untuk melihat pengaruh migrasi dan variabel lainnya terhadap tingkat kesejahteraan pekerja di DKI Jakarta.Hasil analisis memperlihatkan bahwa status migrasi pekerja di DKI Jakarta dan variabel-variabel lainnya memiliki keragaman dalam memberikan kontribusi terhadap perbedaan pola tingkat kesejahteraan pekerja, namun secara umum variabel-variabel tersebut memberikan kontribusi yang signifikan. Sedangkan analisis inferensial dengan model interaksi menghasilkan kesimpulan bahwa pekerja migran berusia 25-34 tahun cenderung “sejahtera” 2,86 kali, dan cenderung menjadi “sangat sejahtera” 2,34 kali; Pekerja migran berstatus kawin cenderung “sejahtera” 2,6 kali; dan Pekerja migran berstatus formal cenderung menjadi “cukup sejahtera” 1,82 kali, menjadi “sejahtera” 2,5 kali, dan menjadi “sangat sejahtera” 6,14 kali.


Author(s):  
Basavaraj N Hiremath ◽  
Malini M Patilb

The voice recognition system is about cognizing the signals, by feature extraction and identification of related parameters. The whole process is referred to as voice analytics. The paper aims at analysing and synthesizing the phonetics of voice using a computer program called “PRAAT”. The work carried out in the paper also supports the analysis of voice segmentation labelling, analyse the unique features of voice cues, understanding physics of voice, further the process is carried out to recognize sarcasm. Different unique features identified in the work are, intensity, pitch, formants related to read, speak, interactive and declarative sentences by using principle component analysis.


2003 ◽  
Vol 26 (6) ◽  
pp. 681-682
Author(s):  
Harry Howard

Jackendoff's criticisms of the current state of theorization in cognitive neuroscience are defused by recent work on the computational complementarity of the hippocampus and neocortex. Such considerations lead to a grounding of Jackendoff's processing model in the complementary methods of pattern analysis effected by independent component analysis (ICA) and principle component analysis (PCA).


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