Formaldehyde Levels in Fabrics on the Ghanaian Market

2021 ◽  
Vol 15 ◽  
Author(s):  
Patience Danquah Monnie ◽  
Rachel Amanfu ◽  
Modesta Efua Gavor
Keyword(s):  
Analysis Of Variance ◽  
Face Mask ◽  
T Test ◽  
Formaldehyde Resin ◽  
Inferential Statistics ◽  
Textile Production ◽  
Paired Samples ◽  
Production Processes ◽  
Before And After ◽  
The Mean

Background: Formaldehyde is a chemical used in several textile production processes, such as hardening of fibers and antimold finishing. However, it has varying effects on humans, such as irritation of the eyes, nose, throat, wheezing, chest pains and bronchitis. In the midst of COVID-19, individuals are using various fabrics for face mask production, which may be containing levels of formaldehyde that can negatively affect their health. Methods: This study investigated formaldehyde levels in fabrics on the Ghanaian market to determine compliance to standards set by the Ghana Standards Authority (GSA) with the aid of experimental procedures. Thirty-two (32) different brands of fabrics were selected for the investigation. Formaldehyde levels were determined using a spectrophotometer (DR6000). Data were analyzed using the Statistical Product and Service Solutions (SPSS) for Windows version 22. The mean performance attributes and the formaldehyde levels of the sampled fabrics were determined before and after washing. Inferential statistics (Analysis of Variance and Paired Samples t-test) at 0.05 alpha levels were used to determine significant differences between and among the groups involved. Results: The fabric samples tested positive for formaldehyde before and after washing, with some exceeding the standard limits set by the GSA before washing. Significant differences existed between and among the samples with regard to formaldehyde levels as well as weight and weave types of the samples and formaldehyde levels. Conclusion: Washing significantly reduced the formaldehyde levels in the fabrics. It is recommended that Ghana standards authority takes a further look at the fabrics on the Ghanaian market to ensure manufacturers comply with set standards and consumers are also advised to wash their clothes at least once before use to reduce the level of impact formaldehyde resin may have on them.

scholarly journals Pemanfaatan Video Kehamilan Berkualitas Untuk Meningkatkan Pengetahuan Ibu Hamil Di Masa Pandemic Covid 19

2021 ◽  
Vol 4 (5) ◽  
pp. 1074-1080
Author(s):  
Irfan Irfan ◽  
Ririn Widyastuti ◽  
Fitri Handayani
Keyword(s):  
Pregnant Women ◽  
Community Service ◽  
Univariate Analysis ◽  
T Test ◽  
Bivariate Analysis ◽  
Paired Sample ◽  
Paired Samples ◽  
Knowledge Quality ◽  
Before And After ◽  
The Mean

ABSTRAK Ibu hamil lebih rentan terhadap morbiditas Covid 19 dikarenakan perubahan fisiologis dan imunologis selama masa kehamilan. Salah satu upaya asuhan pada masa pandemi covid untuk mencegah penularan dan penyebaran covid 19 adalah adalah dengan meningkatkan pengetahuan ibu hamil melalui promosi kesehatan tentang kehamilan berkualitas. Tujuan pengabdian masyarakat adalah untuk meningkatkan pengetahun ibu hamil melalui pemberian video kehamilan berkualitas pada masa pandemic covid 19. Pelaksanaan kegiatan pengabdian masyarakat dengan cara memberikan penyuluhan, konseling informasi dan edukasi (KIE) kepada ibu hamil dengan menggunakan media video kehamilan berkualitas di Puskesmas Oepoi Kota Kupang. Analisis univariate disajikan dalam bentuk tabel distribusi frekuensi. Analisis bivariate dengan menggunakan uji paired sample t – test untuk mengetahui perbedaan sebelum dan setelah pemberian penyuluhan dan KIE pada ibu hamil. Hasil Pengabdian masyarakat adalah terjadi  Peningkatan rerata pengetahuan ibu hamil sebelum perlakuan 64.25 dan setelah perlakuan meningkat menjadi 81.08. Hasil uji paired samples t-test menunjukkan bahwa ada perbedaan bermakna pengetahuan ibu hamil tentang kehamilan berkualitas pada masa covid 19 (p < 0,05); Saran: perlu pengembangan telemedicine untuk memberikan asuhan pada masa kehamilan di masa pandemic covid 19. Kata kunci: Ibu hamil, Pengetahuan, Kehamilan berkualitas, Covid 19  ABSTRACK Pregnant women are more prone to Covid 19 morbidity due to physiological and immunological changes during pregnancy. One of the care efforts during the Covid pandemic to prevent the transmission and spread of Covid 19 is to increase the knowledge of pregnant women through health promotion about quality pregnancies. The aim of community service is to increase the knowledge of pregnant women by providing quality pregnancy videos during the COVID-19 pandemic. Implementation of community service activities by giving counseling, information counseling, and education (IEC) to pregnant women using quality pregnancy video media at Oepoi Health Center, Kupang City. Univariate analysis is presented in the form of a frequency distribution table. Bivariate analysis using paired sample t-test to determine the differences before and after counseling and IEC for pregnant women. The result of community service was that there was an increase in the mean knowledge of pregnant women before treatment of 64.25 and after treatment increased to 81.08. The results of the paired samples t-test showed that there were significant differences in the knowledge of pregnant women about quality pregnancies during the Covid 19 period (p <0.05); Suggestion: it is necessary to develop telemedicine to provide care during pregnancy during the Covid pandemic 19. Keywords: Pregnant women, knowledge, quality pregnancy, Covid 19

Digital Literacy Education for the Development of Digital Literacy

2017 ◽  
pp. 1082-1097
Author(s):  
Seung-Hyun Lee
Keyword(s):  
Digital Literacy ◽  
Internet Use ◽  
Literacy Education ◽  
T Test ◽  
Performance Tests ◽  
Test Results ◽  
Paired Samples ◽  
Before And After ◽  
Informal Setting ◽  
The Mean

The primary purpose of this study is to examine the effect of digital literacy education (DLE) on the development of digital literacy through a local digital technology community center, particularly for those with a lack of digital literacy. This study focuses on measuring significant differences between before and after digital literacy education through pre- and post-performance tests and surveys. This study also measures the relationships between the DLE and computer and Internet use. The mean comparison of the paired-samples t test results of this study shows an increase in the mean from pretest to posttest, implying the enhancement of digital literacy as a result of the education. The ultimate goal of the digital literacy education in this study is to provide people, who are the digitally illiterate, with learning and digital opportunities to improve their digital literacy through education in an informal setting and to facilitate digital connection and inclusion.

scholarly journals KADAR KALIUM SERUM PADA LATIHAN FISIK INTENSITAS RINGAN MAHASISWA FAKULTAS KEDOKTERAN UNIVERSITAS SAM RATULANGI

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Yunita M. Umboh
Keyword(s):  
Light Intensity ◽  
Serum Potassium ◽  
Potassium Level ◽  
Sampling Method ◽  
Serum Potassium Level ◽  
T Test ◽  
Paired Samples ◽  
Study Results ◽  
Before And After ◽  
The Mean

Abstract: Potassium is one of the three highest concentration electrolytes in sweat. This is defined as the greater the rate of sweat excreation is, the greater the rate of potassium lost will be. Lossing sweat may occur while doing physical activity. The purpose of this study is to find differences in serum potassium levels before and after light intensity exercise in the student year 2010 in Faculty of Medicine Sam Ratulangi University. Thirty students, taken by purposive sampling method, were participate as samples in this study. Results showed the mean serum potassium levels before exercise was 4,0933 mEq/L and after exercise was 4,3267 mEq/L. Analysis using paired-samples t-test showed significant result (p = 0,001). Based from results, it can be concluded that there is a significant different between serum potassium level before and after light intensity exercise. Key Words: Serum potassium, light intensity physical exercise, students     Abstrak:Kalium adalah salah satu dari tiga elektrolit dalam keringat dengan konsentrasi terbesar. Hal ini berarti semakin besar laju pengeluaran keringat maka laju kehilangan kalium juga akan semakin besar. Kehilangan keringat dapat terjadi antara lain saat melakukan aktifitas fisik. Penelitian ini dilakukan untuk mengetahui apakah ada perbedaan kadar kalium serum sebelum dan sesudah latihan fisik intensitas ringan pada mahasiswa Fakultas Kedokteran Universitas Sam Ratulangi angkatan 2010. Sampel dalam penelitian ini berjumlah 30 orang yang diambil menggunakan metodepurposive sampling. Hasil penelitian menunjukkan nilai rata-rata kadar kalium serum sebelum aktifitas fisik adalah 4,0933 dan sesudah adalah 4,3267. Hasil analisis menggunakan paired-samples t-test menunjukkan nilai hasil yang signifikan (p = 0,001). Berdasarkan hasil analisis dapat ditarik kesimpulan terdapat perbedaan yang signifikan antara kadar kalium serum sebelum dan sesudah latihan fisik intensitas ringan. Kata Kunci: Kadar kalium serum, latihan fisik intensitas ringan, mahasiswa

scholarly journals Learning The Strategy of Reasoning Through Marzano Dimensional Mastery Learning Model Among Form Four Students for The Topic Of Differentiation

2017 ◽  
Vol 9 (1-4) ◽  
Author(s):  
Mohamad Nizam Arshad ◽  
Noor Azean Atan ◽  
Abdul Halim Abdullah ◽  
Mahani Mokhtar ◽  
Mohd Salleh Abu
Keyword(s):  
Teaching And Learning ◽  
Learning Strategy ◽  
Implementation Process ◽  
T Test ◽  
Education Development ◽  
Paired Samples ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
Reasoning Skills

Reasoning skills are very important in encouraging students to think more critically and logically, as depicted in the Malaysian Education Development Plan (2013-2025). Therefore, this study looked into improving the Differentiation Reasoning Level (DRL) of reasoning skills among students for a topic in the Additional Mathematics subject,  known as Differentiation, through reasoning learning strategy. The study participants consisted of a total of 31 students from a secondary boarding school in Johor, selected through a purposive sampling method. A pre-test was carried out for the participants, from the advanced level, followed by a number of repetition tests, before the post-test assessment was conducted. The data collection for this study employed a set of Reasoning Test on Differentiation (RTD) and 10 sets of learning activities on Differentiation based on modified Marzano Rubric for Specific Task of Situations (1992). This dimension involved four types of reasoning skills, namely,  comparison, classification, inductive, and deductive. The survey data, through paired samples t-test, revealed a significant difference between the mean scores in pre-test and post-test (p <0.05). In addition, the paired sample t-test showed a significant difference on the level of reasoning among students from each construct in the reasoning skills before and after using this module. In conclusion, the Marzano Model of Dimensional Learning (1992) is a thinking skill model that can help improve students' reasoning skills. The model covers analysis aspects of what has been learned by implementing the process of identifying reasons, which will help students to add and expand their knowledge. The findings also implied that, the processes of teaching and learning play an important role in ensuring students’ capability to emphasize on the implementation process of reasoning skills

scholarly journals THE EFFECT OF APPLYING DICTOGLOSS TECHNIQUE ON UPGRADING STUDENTS’ COMPETENCE IN WRITING NARRATIVE TEXT AT GRADE XI OF SMAN 4 KENDARI

2020 ◽  
Vol 5 (1) ◽  
pp. 10
Author(s):  
Sarni Gita Mustika ◽  
Asrun Lio ◽  
Muhammad Khusnun Muhsin
Keyword(s):  
Hypothesis Testing ◽  
Learning Process ◽  
Teaching And Learning ◽  
T Test ◽  
Narrative Text ◽  
Paired Samples ◽  
Post Test ◽  
The Mean ◽  
Writing Competence

This research aims to find out whether or not any significant effect of the Dictogloss technique on upgrading students’ competence in writing narrative text. The subjects of this research were all students in class XI MIA 5 of SMAN 4 Kendari which consisted of 34 students, but only 32 students who were participated in the pre-test and post-test. The researcher collected data by given pre-test to know students’ writing competence. The treatment conducted in teaching and learning process by applying Dictogloss technique. The post-test to know students’ writing competence after being taught by applying Dictogloss technique. The data were analyzed by using paired samples t test. The result showed that the use of Dictogloss technique is significantly influenced students’ writing competence which is reflected by the enhanmcement of students mean score from pre-test to post-test. It can be seen from the mean score of post-test is 77,78, while the mean score of pre-test is 53,19. Furthermore, the result of hypothesis testing showed that the value of Sig.(2 tailed) was 0,000 while the significance ρ value is 0,05, means that (H0) is rejected and (H1) is accepted. Therefore, it can be concluded that there is a significant effect of applying Dictogloss technique on upgrading students’ competence in writing narrative test of SMAN 4 Kendari.

scholarly journals Efektivitas Mendengarkan Murotal Al-Qur’an terhadap Derajat Insomnia pada Lansia di Selter Dongkelsari Sleman Yogyakarta

2016 ◽  
Vol 3 (1) ◽  
pp. 20
Author(s):  
Fatma Siti Fatimah ◽  
Zulkhah Noor
Keyword(s):  
Rating Scale ◽  
Intervention Group ◽  
Relaxation Effect ◽  
Psychological Problem ◽  
T Test ◽  
Control Group ◽  
Paired Samples ◽  
Post Test ◽  
The Mean ◽  
Traumatic Effect

<p>Merapi eruption in 2010 in Yogyakarta caused people losing their homes and triggering traumatic effect. Elderly is one of victims that vulnerable to psychological problem. The common psychological late respons due to disaster is insomnia. The impacts of insomnia are decrease the level of immunity, increase mortality and decrease quality of life, thus it needs to be solved. One of the solution is by listening murotal Al-Qur’an that will give relaxation effect. The study was aimed to know the effectiveness of listening murotal Al-Qur’an to the changing of elderly insomnia level in shelter Dongkelsari, Sleman, Yogyakarta.The design of study was a quasy experimental pre post test with control group. Technique of taking sample was probability sampling and it was found that there were 37 elderly who live in shelter Dongkelsari Sleman Yogyakarta that fulfilled the inclusion criteria. Research instrument which was used to measure insomnia level is KSPBJ questionnaire rating scale and to listen for murotal Al-Qur’an (Ar-Rahmaan) was used laptop and speaker. The duration of listening murotal Al-Qur’an was 8 days with 12 minutes for each day. Data analysis was used paired samples t test and independent samples t test. The level of insomnia for control group pre test and post test is in moderate insomnia by the mean ± SD each of them is 9.3 ± 3.7 and 10.3 ± 3.4 (p&gt;0.05) and for intervention group there was a changing from moderate insomnia to mild insomnia by the mean ± SD each of them is 10.9 ± 3.6 and 8.2 ± 4.2 (p&lt;0.05). There was a significant differences between the intervention group and control group by the mean ± SD each of them is -2.8 ± 3.0 and 0.9 ± 3.5 (p&lt;0.05). In conclusion, listening murotal Al-Qur’an was effective to reduce elderly insomnia level in shelter Dongkelsari Sleman Yogyakarta.</p>

PENGARUH KOMUNIKASI TERAPEUTIK TERHADAP PENURUNAN TINGKAT KECEMASAN PASIEN PRE-OPERATIF DI IBS BLU RSUP Prof. Dr. R.D. KANDOU MANADO

e-NERS ◽  
2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Reychie Janis Sanggel ◽  
Jeavery Bawotong ◽  
Gresty Masi
Keyword(s):  
Null Hypothesis ◽  
T Test ◽  
Patient Anxiety ◽  
Therapeutic Communication ◽  
Significance Level ◽  
Paired Samples ◽  
Before And After ◽  
Independent Variable ◽  
Keywords Anxiety ◽  
Different Levels

Abstrak: Dalam menyiapkan pasien yang akan dioperasi, maka perawat dituntut mampu menyiapkan pasien untuk siap menjalani tindakan pembedahan. Sehingga komunikasi terapeutik dapat diterapkan oleh perawat untuk mengurangi kecemasannya. Penelitian ini bertujuan untuk mengetahui pengaruh komunikasi terapeutik terhadap penurunan tingkat kecemasan pasien pre-operatif di IBS BLU RSUP Prof.Dr.R.D.Kandou Manado. Desain dalam penelitian ini adalah pra-eksperiment one group pretest-posttest design. Sampel adalah pasien yang akan menjalani operasi di IBS BLU RSUP Prof.Dr.R.D.Kandou Manado yang mempunyai kecemasan. Variabel independen adalah komunikasi terapeutik dan variabel dependen adalah tingkat kecemasan pasien pre-operatif. Analisa data menggunakan uji-T sampel berpasangan pada tingkat kemaknaan 95% (α ≤0,05) dengan bantuan program SPSS versi 20. Hasil analisa didapatkan nilai p=0,000, artinya p <α. Hal ini berarti hipotesis nol (H0) ditolak. Dengan kata lain terdapat perbedaan tingkat kecemasan sebelum dan sesudah dilakukan komunikasi terapeutik pada pasien pre-operatif di IBS BLU RSUP Prof.Dr.R.D.Kandou Manado. Kata kunci: kecemasan, komunikasi terapeutik, pasien pre-operatif.     Abstract: In preparing the patient to be operated, the nurses are able to prepare patients to readily undergo surgery. So that therapeutic communication can be applied by nurses to reduce anxiety. This study aimed to determine the effect of therapeutic communication to the decline in the level of patient pre-operative anxiety in IBS BLU Dr Prof.Dr.RDKandou Manado. The design in this study were pre-experimental one group pretest-posttest design. Samples are patients who will undergo surgery in the department of Prof.Dr.RDKandou Manado BLU IBS who have anxiety. The independent variable was therapeutic communication and the dependent variable is the level of pre-operative patient anxiety. Analysis of data using paired samples T-test at 95% significance level (α ≤ 0.05) with SPSS version 20. Analysis results obtained p=0.000, meaning that p <α. This means that the null hypothesis (H0) is rejected. In other words, there are different levels of anxiety before and after therapeutic communication in pre-operative patients in the IBS BLU Dr Prof.Dr.RD. Kandou Manado. Keywords: anxiety, therapeutic communication, pre-operative patients.

scholarly journals A Study of Executive Function in Patients with Chronic Kidney Disease before and after a Single Session of Hemodialysis

2020 ◽  
Vol 11 (02) ◽  
pp. 250-255
Author(s):  
Vasantmeghna S. Murthy ◽  
Vedant S. Shukla
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Statistical Tests ◽  
T Test ◽  
Emotional States ◽  
Single Session ◽  
Dialysis Unit ◽  
Before And After ◽  
The Mean ◽  
The Impact

Abstract Background Executive functions (EFs) are critical to daily life and sensitive to our physiological functioning and emotional states. The number of people living with chronic kidney disease (CKD) on hemodialysis (HD) globally is increasing steadily. We aimed to determine the impact of a single session of HD on EFs in patients with CKD receiving maintenance HD (MHD). Methods This was a quasi-experimental study conducted at the department of psychiatry and dialysis unit of a tertiary hospital. Patients undergoing MHD underwent screening to rule out delirium, using the Confusion Assessment Method prior to EF testing. The tests of EF used were the Trail-Making Test—Part B (TMT-B) and Frontal Assessment Battery (FAB), both of which were administered before and after a session of HD. Statistical tests used were Wilcoxon matched pairs signed ranks test, paired t-test, single sample t-test, and correlation analyses. Results The mean time taken on TMT-B before HD was 195.36 seconds and after HD, 171.1 seconds; difference is significant (p = 0.0001). The mean FAB score was 13.19 before HD and 14.83 after HD; the difference is significant (p < 0.0001). Significant differences were observed on similarities (p = 0.003), lexical fluency (p = 0.02), and go–no go (p = 0.003) subtests of FAB. Mean TMT-B scores before and after HD differed significantly from that of a reference study (reference TMT-B 150.69 seconds), p = 0.0002 and 0.04, respectively. Conclusion We conclude that patients with CKD on MHD, in general, have worse executive cognitive functioning compared with healthy populations. A session of HD results in significant improvement in these functions.

scholarly journals Training Badminton Footwork Ten Repetitions Two Sets Better Than Five Repetitions Four Sets for The Improvement of Leg Muscle Strength

2021 ◽  
Vol 2 (1) ◽  
pp. 10-15
Author(s):  
I Putu Astrawan ◽  
I Putu Prisa Jaya
Keyword(s):  
Muscle Strength ◽  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Before And After ◽  
The Mean ◽  
Leg Muscle ◽  
Group 2 ◽  
Better Than ◽  
Group 1

Background: Footwork training is important in coaching basic movements in badminton. This research aims to learn about the influence of footwork training on improving leg muscles strength. Methods: The study used a randomized pretest-posttest control group design. The participants consisted of 42 male badminton players of Universitas Pendidikan Ganesha, Bali, Indonesia, who split into two groups of footwork training (ten repetitions two sets (group 1) and five repetitions with four sets (group 2)). The coach gave the footwork exercise three times per week for 6 weeks to each group and measured the leg muscle strength using the dynamometer test. Results: The result of the within-group paired T-test before and after the training shows group 1 and group 2 (p<0.05). For group 1, the mean of leg muscle strength was 114.19±33.13 kg before the training and 183.19±33.56 kg after the training, with an increase of 60% (69 kg). On the other hand, for group 2, the mean score of leg muscle strength before the training was 113.05±31.30 kg and after the training was 141.10±34.91, with an increase of 25% (28 kg). The leg muscle strength difference between the groups before and after the training was tested using the independent T-test with a significant α=0.05. Comparing the differences of leg muscle strength for both the groups before the training was p= 0.90, and after the training was p=0.00. Conclusion: The conclusion is training badminton footwork ten repetition two sets better than five repetitions four sets to improve leg muscle strength.

scholarly journals Do Regional Election and Presidential Election Affect Stock Exchange? An Event Study in the Indonesian Stock Exchange

2021 ◽  
Vol 7 (1) ◽  
pp. 71-80
Author(s):  
Khanifah Khanifah ◽  
Agus Triyani ◽  
Suhita Whini Setyahuni
Keyword(s):  
Event Study ◽  
Capital Market ◽  
Trading Volume ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
T Test ◽  
Democratic Politics ◽  
Paired Samples ◽  
Before And After ◽  
Regional Elections

The 2018 simultaneous regional election in Indonesia is something new in the events of democratic politics in Indonesia. The events of the 2018 simultaneous regional election is one of the important events in 2018 that can cause a reaction of capital market to these events. This study aims to examine how the capital market reacts to the simultaneous regional elections in 2018 and presidential elections in 2019, by looking at the differences in the preceding and following periods based on 2 variables, namely abnormal return and trading volume activity. The sample in this study were 30 companies listed in the Indonesian Stock Exchange during 30 periods from February through July 2018. Research Methode This study used an event study. One paired samples T test was used as a technique analysis. The means of each variable within eleven days period was compared. The period of observation is five days before the event, five days after the event, and one day on event day. Based on the results of the parametric statistical calculations, the paired sample t-test showed that there was no difference between the level of abnormal returns before and after the 2018 simultaneous regional elections. On the other hand, there was a difference between trading volume of activity before and after the 2018 simultaneous regional elections.

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