During the COVID-19 pandemic, the Universitas Indonesia (UI) implemented a work from home program (WFH) to curb the spread of the coronavirus, as the use of gadgets including mobile phones and tablets were becoming prolonged and more frequent. As a result, musculoskeletal symptoms in certain limbs due to awkward posture sprang up. Therefore, the aim of this study was to quantify the degree of the use of these devices among UI community during the WFH initiative, as well as to identify musculoskeletal complaints resulting from defective postures. Consequently, this cross-sectional survey employed an online-based questionnaire, and the minimum number of respondents was 1080, as calculated using Slovin Formula. Meanwhile, a total of 1083 individuals, including lecturers (118), students (709), and managerial staff (256), obtained from 14 faculties, three schools, as well as administrative centres, volunteered to respond to the online poll. Apparently, 95% of the scholars owned mobile phones while only 16% possessed tablets, and 56% had used phones for over 10 years. The typical posture when using mobile devices was a reclining position on a sofa or mattress for a duration of 1–3 h as recounted by 34.6%. Also, sitting at a table for less than 30 min was reported by 25.3% of the subjects who used tablets. Furthermore, 70.5% of the respondents complained of musculoskeletal discomfort, particularly in the neck (86.4%), lower back (75.9%), and right & left shoulders (76.2%). In addition, the postures significantly related to these grievances included sitting at a table, alongside a prone position whilst using a mobile phone, as well as a latent or floor-sitting posture when using a laptop, whether at a table or not. Therefore, it is essential to do stretching, limiting usage time, look away every 20 min at an object that is about 20 feet away for a full 20 s when using a gadget and having adequate rest time to reduce musculoskeletal complaints.

Online teaching and learning extend the duration of using gadgets such as mobile phones and tablets. A prolonged usage of these gadgets in a static position can lead to musculoskeletal disorders (MSD). Therefore, this study aims to identify the risk factors related to musculoskeletal symptoms while using gadgets during work from home due to the COVID-19 pandemic. A cross-sectional survey with online-based questionnaires was collected from the University of Indonesia, consisting of lecturers, students, and managerial staff. The minimum number of respondents was 1,080 and was defined by stratified random sampling. Furthermore, the dependent variable was musculoskeletal symptoms, while the independent were age, gender, job position, duration, activity when using gadgets, and how to hold them. Most of the respondents had mobile phones but only 16% had tablets. Furthermore, about 56.7% have used a mobile phone for more than 10 years, while about 89.7% have used a tablet for less than 10 years. A multivariate analysis found factors that were significantly associated with MSD symptoms while using a mobile phone, such as age, gender, web browsing activity, work, or college activities. These activities include doing assignments and holding the phone with two hands with two thumbs actively operating. The factors that were significantly associated with MSD symptoms when using tablets were gender, academic position, social media activity, and placing the tablet on a table with two actively working index fingers. Therefore, from the results of this study it is necessary to have WFH and e-learning policies to reduce MSD symptoms and enhance productivity at work.

Covid-19 merupakan penyakit infeksius dengan tingkat penularan yang tinggi dan sebagian besarnya menyerang sistem organ pernapasan. Pemerintah Indonesia menghimbau pekerja untuk bekerja dari rumah dan pembatasan ketat aktivitas perkantoran sebagai salah satu upaya dalam rangka pengendalian Covid-19. Sebelumnya, sistem kerja work from home atau telework belum diadopsi secara luas di Indonesia. Perubahan sistem kerja ini berdampak pada perubahan konteks pekerjaan yang menyebabkan bahaya psikososial. Penelitian ini bertujuan untuk menganalisis faktor psikososial (karakteristik individu, content of work, dan context to work) dan stres kerja di masa pandemi Covid-19 pada pekerja perkantoran di Jakarta. Penelitian ini merupakan penelitian kuantitatif dengan desain studi potong lintang. Penelitian dilakukan pada pekerja perkantoran yang bekerja dengan sistem telework di Provinsi DKI Jakarta pada bulan Desember 2020 sampai Februari 2021. Jumlah sampel pada penelitian ini adalah 110 responden yang diambil dengan teknik pengambilan snowball sampling. Pengumpulan data dilakukan secara daring. Kuesioner yang digunakan pada penelitian ini adalah Copenhagen Psychosocial Questionnaire versi III. Analisis data dilakukan dengan menggunakan uji statistik chi square.Hasil penelitian menunjukkan bahwa terdapat hubungan yang signifikan antara faktor psikososial context to work konflik peran (nilai p 0,014; OR 2,095), job insecurity (nilai p 0,023; OR 2,714), dan work life balance (nilai p 0,003; OR 3,715). Tidak ada hubungan yang signifikan antara karakteristik individu (umur dan jenis kelamin), content of work (beban kerja, durasi kerja WFH, Pola WFH), dan context to work (ketidakjelasan peran) dengan stres kerja.

Introduction: Mold may affect the Indoor Air Quality (IAQ) in workplace dormitories. This study aims to investigate indoor air factors that affect molds growth in a dormitory of an LNG Company in Indonesia. Several indoor air determinant factors, including relative humidity, general temperature, wet temperature, dry temperature, air velocity, illumination, particulate matter, and carbon dioxide concentration were assessed against the growth of microorganism colonies. Methods: This study was a cross-sectional study using a 2 (two)-stage Andersen sampler based on NIOSH 0800 Bioaerosol Sampling Method for Indoor Air Quality for viable bioaerosol sampling. Bioaerosol samples were collected from 50 indoor, corridor, and outdoor sampling points. The total colony count for bioaerosols (TCC) was then determined (CFU/m³). Ten indoor air quality parameters, i.e., relative humidity, general temperature, wet temperature, dry temperature, air velocity, illumination, particulate matter, and carbon dioxide concentration, were measured. Results: The average mold colony concentration in the dormitory rooms was higher (703.1 CFU/m³) than the maximum standard issued by the Ministry of Health of the Republic of Indonesia (< 700 CFU/m³) while the relative humidity was very high (84.4% RH on average), with a direct relation between the humidity and the mold colony concentration. A significant correlation was also identified between mold colony concentration, wet temperature, and CO₂ concentration. Conclusion: Significant correlations between bioaerosols, relative humidity, wet temperature, and indoor CO₂ concentration indicate insufficient ventilation and poor indoor air quality in the dormitory.

One of preventive action methods of hearing loss that number tend to increase is by using brick that made from Styrofoam which is expected to have the ability as a soundproof that can be used to control the noise. The aim of this research is to assess the use of sound absorption material in which utilizing Styrofoam to reduce the noise exposure. In this study, cement and find aggregate that contain the Styrofoam and sand are mixed with the composition 1:4 and 1:6 and also by adding the polystyrene waste as much as 0%, 20%, 40%, 60%, and 80%. To determine the acoustical property of the mixture, the sound absorbing coefficient (α) was determined by using Four Microphones Impedance Tube (ISO 140-3). The results showed that the highest absorption coefficient value was at frequency 800 Hz by adding 80% Styrofoam for the composition of 1:4 at 0.4100 dB and at the frequency 800 Hz by adding 40% Styrofoam for the composition 1:6 at 0.5870 dB. Based on the results of this research, further study to potentially use Styrofoam as noise barrier is suggested.

The Evidence of Sick Building Syndrome (Sbs) among Oil Gas Refinery Officers