Pengaruh Persepsi Lingkungan Sekolah dan Motivasi Belajar Siswa Terhadap Prestasi Belajar Ilmu Pengetahuan Sosial

Hal ini bertujuan menganalisis pengaruh simultan dan parsial persepsi lingkungan sekolah dan motivasi belajar terhadap prestasi belajar IPS siswa SMP Negeri di Jakarta Utara. Metode penelitian yang digunakan adalah survei dengan analisis korelasi dan regresi, menghubungkan data persepsi tentang lingkungan sekolah dan motivasi belajar dengan data yang menunjukkan prestasi belajar IPS. Data tentang variabel persepsi lingkungan sekolah dan motivasi belajar diperoleh melalui angket yang disusun oleh peneliti dalam mengukur hal yang berkaitan dengan kedua hal di atas. Sedangkan data prestasi belajar IPS diperoleh melalui dokumen sekolah. Melalui pengujian hipotesis diperoleh kesimpulan bahwa: (1) terdapat pengaruh yang signifikan antara persepsi lingkungan sekolah dan motivasi belajar secara bersama vff mt terhadap prestasi belajar IPS, hal ini dibuktikan dengan nilai Sig = 0,000 <0,05 dan Fhitung = 45,029; (2) terdapat pengaruh yang signifikan persepsi lingkungan sekolah terhadap prestasi belajar IPS, hal ini dibuktikan dengan hasil pengujian hipotesis diperoleh nilai Sig = 0,000 <0,05 dan thitung = 4,133; dan (3) terdapat pengaruh yang signifikan motivasi belajar terhadap prestasi belajar IPS, hal ini dibuktikan dengan hasil pengujian hipotesis diperoleh nilai Sig = 0,000 <0,05 dan thitung = 3,78

Investigation of Cell-Penetrating Peptide Transformation in Two Regenerable Tissue Culture Systems

The genetic engineering of plants allows for the modification of plant genomes, subsequently improving plant traits. There are, however, plants recalcitrant to established transformation methods, requiring the implementation of novel techniques. This study investigates the viability of cell-penetrating peptide (CPP) transformation using Tat2, a CPP with demonstrated transformation efficiency in plant and animal systems, in two regenerable tissue culture systems, soybean somatic embryos and Arabidopsis protoplasts. Assessments of complex formation, Tat2 cellular translocation, complex uptake, and CPP-mediated transformation were carried out. The results show the formation of a Tat2-plasmid complex and the uptake of Tat2 into Arabidopsis protoplast cells. However, CPP-cargo complex uptake and successful transformations were not observed in either system. As well, definitive Tat2 uptake into soybean somatic embryo cells was not detected. This study highlights the areas in each regenerable system where further study is needed for CPP-mediated transformation development

Consenting to servitude : a case study of restaurant workers in Gauteng.

Due to high levels of globalization and outsourcing of employment an important aspect emerges which is the concept of decent work. This concept is important in that the struggle for many companies to stay afloat under global competition requires the cutting of costs. The cost which is the most easy to manipulate is that of labour. Through global competitiveness companies often increase working hours, decrease wages and decrease benefits for employees. This has caused increased attention to the idea and concept of decent work. This leads to the problem of providing and assuring decent work on a global scale. Decent work is an objective of the International Labour Organization (ILO) which aims to provide equitable employment to people of all spheres. This goal is wide and deals with nine indicators which are quantitative in nature. However these aspects do not deal with the subjective measures which pertain to employment. These subjective measures are as important as the quantitative measures. To better attain the goal of decent work this report argues that there is a need for the incorporation of these subjective measures when determining the level of decent employment. For the purposes of this research report the subjective measures are collectively termed job satisfaction. However while this combination of objective and subjective indicators better reflects working conditions, there is a need for more comprehensive concepts in understanding vulnerable work. In order to develop this deeper understanding of vulnerable work. This research report utilizes various literature in in the sociology of work . The restaurant industry in Gauteng is used as the site for this research report as a means of illustrating the pitfalls to the narrowly defined concepts of decent work and job satisfaction. This industry is particularly interesting as it is very different from other sectors as it is marked by interactive service work that involves high levels of emotional labour. Tips play a large role in supplementing the workers income. Tips , the report argues, is a means of workers consenting to servitude as they actively participate in their exploitation through conforming to the enterprises interests. This is not merely done through the system of tipping but also through their performance of emotional labour which is often increased in order to play these “games “which allow for higher tips. Consenting to servitude is not only the acceptance of exploitation but also the creation of a submissive and subservient work force. The notion of consenting to servitude is what lacks in both concepts. Exploitation plays a large role in whether a job is deemed decent or not but it is largely ignored within both the concepts of decent work and job satisfaction. Instead it is necessary to go beyond these two concepts and draw on the body of social theory on the world of work such as Burawoy and Foucault, if one wants to explain the nature of work and workers responses in the hospitality industry in Gauteng. This illustrates that every workplace is different and requires differing sets of indicators. The concepts of job satisfaction and decent work although incomplete on their own carry various advantages and cannot merely be dismissed

Pengaruh Debt to Asset Ratio dan Debt to Equity Ratio terhadap Return on Asset Pada Perusahaan yang terdaftar di Indeks Saham Syariah Indonesia (ISSI) : Studi di PT. Pabrik Kertas Tjiwi Kimia Tbk periode 2012-2021

Penelitian ini dilatarbelakangi oleh kebutuhan perusahaan untuk meningkatkan keuntungan. Perusahaan yang mampu mengelola sumber daya yang dimiliki secara efektif serta efisien akan mampu juga menghasilkan laba yang tinggi dan maksimal untuk kebutuhan operasional perusahaannya. Rasio Return on Asset dapat mengukur efektivitas perusahaan dalam menghasilkan laba dengan memafaatkan aktiva secara menyeluruh. Laporan keuangan yang baik, dapat menarik para investor untuk menanamkan modalnya. Dengan melihat laporan keuangan, dapat diketahui Return on Asset (ROA) serta faktor yang dapat mempengaruhi yaitu, Debt to Asset Ratio dan Debt to Equity Ratio (DER). Tujuan penelitian ini untuk mengetahui bagaimana pengaruh Debt to Asset Ratio (DAR) secara parsial terhadap Return on Asset (ROA), untuk mengetahui bagaimana pengaruh Debt to Equity Ratio (DER) secara parsial terhadap Return on Asset (ROA), serta untuk mengetahui bagaimana pengaruh Debt to Asset Ratio (DAR) dan Debt to Equity Ratio (DER) secara simultan terhadap Return on Asset (ROA) pada PT. Pabrik Kertas Tjiwi Kimia Tbk, Periode 2012-2021. Kerangka pemikiran pada penelitian ini yaitu Debt to Asset Ratio (DAR) dan Debt to Equity Ratio (DER) berpengaruh negatif terhadap Return on Asset (ROA), dimana apabila kedua variabel tersebut mengalami kenaikan maka dapat menurunkan tingkat Return on Asset (ROA) dan begitu pun sebaliknya. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kuantitatif. Dalam penelitian ini menggunakan teknik analisis data yaitu analisis deskriptif, analisis asumsi klasik, analisis asosiatif, dan analisis uji hipotesis yaitu uji t dan uji f. Jenis data yang digunakan yaitu data sekunder dari laporan keuangan tahunan dari PT. Pabrik Kertas Tjiwi Kimia Tbk pada Periode 2012-2021. Pada penelitian ini, pengolahan data menggunakan program SPSS versi 20. Hasil penelitian ini menunjukan bahwa secara parsial DAR berpengaruh tidak signifikan terhadap ROA dengan nilai t hitung 0,05. DER secara parsial berpengaruh tidak signifikan terhadap ROA, dengan nilai t hitung dan t tabel yaitu (-0,416 0,05. Dan untuk hasil penelitian secara simultan adalah DAR dan DER berpengaruh tidak signifikan terhadap ROA, dengan nilai F hitung dan F tabel yaitu 0,322 0,05. Besarnya nilai koefisien determinasi adalah 6,2% dan sisanya 93,8% dijelaskan variabel lain yang tidak terdapat dalam model

A review of contemporary techniques for measuring ergonomic wear comfort of protective and sport clothing

Protective and sport clothing is governed by protection requirements, performance, and comfort of the user. The comfort and impact performance of protective and sport clothing are typically subjectively measured, and this is a multifactorial and dynamic process. The aim of this review paper is to review the contemporary methodologies and approaches for measuring ergonomic wear comfort, including objective and subjective techniques. Special emphasis is given to the discussion of different methods, such as objective techniques, subjective techniques, and a combination of techniques, as well as a new biomechanical approach called modeling of skin. Literature indicates that there are four main techniques to measure wear comfort: subjective evaluation, objective measurements, a combination of subjective and objective techniques, and computer modeling of human–textile interaction. In objective measurement methods, the repeatability of results is excellent, and quantified results are obtained, but in some cases, such quantified results are quite different from the real perception of human comfort. Studies indicate that subjective analysis of comfort is less reliable than objective analysis because human subjects vary among themselves. Therefore, it can be concluded that a combination of objective and subjective measuring techniques could be the valid approach to model the comfort of textile materials

Assessment of fabric comfort based on finger sensitivity

Assessment of fabric tactile comfort by humans is subjected to many influencing factors including finger sensitivity of the assessors. In previous research, a group of panel members with finger sensitivity between 0.60 to 1.80 mm discrimination performance were selected to perform a fabric handle measurement. A tool called JVP Domes was employed for the measurement of finger sensitivity. In this work, we aim to analyze the influence of the range of finger sensitivity towards the fabric handle assessment. Three groups of assessors based on their finger sensitivity were formed i.e. 0.60-1.00, 1.01-1.20, and 1.21-1.50 mm, in order to investigate the consistency of the results for the measurement of smoothness, softness and warmth attributes. No significant differences were found between the scores from the three groups. This proves that sensitivity up to 1.50 mm is acceptable for assessors. We propose that the selection of panel members based on finger sensitivity is the best way to select people for tactile related assessment, as opposed to other methods