Education policy-making in South Africa during COVID-19

Scholarship on the impact the COVID-19 pandemic has had on education has focused primarily on learners (Vaughn, Sayed and Cooper, 2021; Spaull et al., 2020) and the widening of existing educational inequalities (Schleicher, 2020). Few studies have considered the effects COVID-19 has had on teachers, which makes this study’s contribution relevant and essential (Sayed et al., 2021). The literature on teaching during times of crisis has demonstrated that teachers can act as a buffer and mitigate many of the adverse effects that result from conflict and crises-ridden contexts (INEE, 2020). However, teachers need to feel more valued, as this will contribute to their positive sense of well-being and their ability to persist. This paper illuminates the experiences of teachers who work in challenging contexts in the Western Cape province of South Africa. It contributes to the knowledge on teachers’ experiences of crisis and instability in the Global South. The paper suggests that teachers, as front-line workers in crisis situations, should be granted autonomy and agency in their education choices and delivery methods

DERAJAT PENETASAN TELUR IKAN LELE DUMBO (Clarias gariepinus) YANG DI INKUBASI PADA MEDIA AIR YANG BERBEDA

Penelitian ini bertujuan untuk mengetahui pengaruh media air yang berbeda yaitu air tanah, air gambut, air PDAM, dan air minum isi ulang (Ro) terhadap penetasan telur ikan lele dumbo (Clarias gariepinus). Penelitian ini dilaksanakan selama 1 (satu) bulan, pada bulan Juli sampai dengan Agustus 2020. Tempat pelaksanaan di Laboratorium Basah Jurusan Perikanan, Universitas Palangka Raya, Kalimantan Tengah. Hasil dari penelitian dapat disimpulkan sebagai berikut: Pemijahan ikan lele dengan perbandingan 1:1 menghasilkan jumlah pembuahan yang relatif tinggi mencapai 92 %. Presentase penetasan telur lele dumbo (Clarias gariepinus) terdapat pada perlakuan Air tanah (B) yaitu sebesar 69% dengan rata-rata pH sebesar 6,40 ± 0,20; diikuti perlakuan Air PDAM (C) sebesar 66,6% dengan rata-rata pH sebesar 6,43 ± 0,06; perlakuan Air isi Ulang Ro (D) sebesar 65,3% 6,83 dengan rata-rata pH ± 0,15 dan perlakuan Air Gambut (A) sebesar 63,3% dengan rata-rata pH 5,20 ± 0,20. Perlakuan berupa perbedaan media air yang terdiri dari Air Gambut, Air Tanah, Air PDAM dan Air isi ulang Ro yang digunakan untuk penetasan telur ikan lele (Clarias garphineus) menunjukkan tidak terdapat perbedaan yang nyata terhadap persentase telur lele dumbo (Clarias gariepinus) yang dihasilkan, dikarenakan presentase penetasan pada setiap perlakuan tidak terlalu berbeda jauh (63,3% - 69%) dan nilai Fhitung = 0.264 < Ftabel5% = 5.14, nilai Sig. = 0.774 > α = 0.05, karena nilai Sig. > α atau Fhitung< Ftabel maka disimpulkan bahwa H0 diterima atau ragam tidak berbeda nyata

ANALISIS POLA KOMUNIKASI HUMAN RESOURCES DEPARTMENT (HRD)

Penelitian ini bertujuan untuk mengetahui pola komunikasi yang digunakan Human Resources Department (HRD) PT X dalam berkomunikasi di perusahaan. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan metode pengumpulan data melalui observasi, wawancara dan dokumentasi. Populasi dalam penelitian ini adalah karyawan PT X dan sampel sebagai responden penelitian akan di ambil menggunakan teknik purposive sampling yaitu teknik penentuan sampel dengan pertimbangan tertentu dari peneliti, maka di peroleh tiga karyawan HRD yang dapat mewakili lainnya. Hasil penelitian menggambarkan bahwa pola komunikasi yang digunakan Human Resources Department (HRD) PT X ada tiga macam, yaitu pola roda dalam mengatasi pertanyaan karyawan, pola menyeluruh dalam mengurangi ketidakpastian, dan pola lingkaran dalam memotivasi karyawan

Creating A Green Economic Ecosystem Through Lean Canvas Model: BIPV System Achieving Net Zero Emission

Green Economy is a sustainable economic activity to be able to improve people's welfare without neglecting the impact that causes damage to the environment. This concept prioritizes economic activities with low carbon emissions. Currently, the largest carbon emissions are caused by power plants that still use non-renewable natural resources. One of the efforts made to reduce carbon emissions is to use a solar power plant, known as PV Solarcell. However, with new developments and discoveries for solar power plants, BIPV is perfected. BIPV is a solar power plant where the existing solar panels are attached to buildings or buildings. The aim of this research is to be able to create a new green economy business model for BIPV power plants by using lean canvas tools. This research uses descriptive qualitative method. This research starts from May to October 2022. The results of this study using the lean canvas concept can create an integrated and sustainable green economy business model ecosystem to be able to create new value

The Effect of Cooling and Temperature in 3D Printing Process with Fused Deposition Modelling Technology on the Mechanical Properties with Polylactic Acid Recycled Material

3D printing is one of the most widely used manufacturing methods. However, its popularity also contributes to the worsening of the environment due to waste from leftover 3D print. Luckily, the usage of recycled filament has become more popular recently, but this recycled filament has lower mechanical properties. Because of that, their usage is less desirable. Therefore, this study aims to improve the mechanical properties of the recycled filament, especially Polylactic Acid (PLA), by one of the easiest methods controlling cooling factors on 3d print, such as fan cooling speed, extruder temperature, and bed temperature. This study uses a factorial design method to achieve the best combination level of fan cooling speed, extruder temperature, and bed temperature. From the study, the writers can conclude that the best factor combination based on both tests is fan cooling speed 100% (5 m/s), extruder temperature 190 °C, and bed temperature 50 °C, which is vastly different from the one recommended on PLA non-recycle. Furthermore, using this parameter, tensile strength has been improved as high as 37% and 5.3% on flexural strengt

Anniversary of a beekeeper’s discovery of thelytoky in Cape honey bees

Significance: The laying workers of the Cape honey bee continue to negatively affect the South African beekeeping industry, with more losses suffered in the northern regions of the country. The reproductive parasites enter susceptible host colonies, activate their ovaries, and lay diploid eggs, leading to colony dwindling and collapse. Diploidy in eggs produced by unmated laying workers arises from thelytokous parthenogenesis, first discovered in honey bees by a hobbyist beekeeper. We examine the consequences of thelytokous parthenogenesis and outline what is being done to understand and limit the spread of the laying workers of the Cape honey bee

Simultaneous Measurements of Dinitrogen Fixation and Denitrification Associated With Coral Reef Substrates : Advantages and Limitations of a Combined Acetylene Assay

Nitrogen (N) cycling in coral reefs is of key importance for these oligotrophic ecosystems, but knowledge about its pathways is limited. While dinitrogen (N-2) fixation is comparably well studied, the counteracting denitrification pathway is under-investigated, mainly because of expensive and relatively complex experimental techniques currently available. Here, we combined two established acetylene-based assays to one single setup to determine N-2-fixation and denitrification performed by microbes associated with coral reef substrates/organisms simultaneously. Accumulating target gases (ethylene for N-2-fixation, nitrous oxide for denitrification) were measured in gaseous headspace samples via gas chromatography. We measured N-2-fixation and denitrification rates of two Red Sea coral reef substrates (filamentous turf algae, coral rubble), and demonstrated, for the first time, the co-occurrence of both N-cycling processes in both substrates. N-2-fixation rates were up to eight times higher during the light compared to the dark, whereas denitrification rates during dark incubations were stimulated for turf algae and suppressed for coral rubble compared to light incubations. Our results highlight the importance of both substrates in fixing N, but their role in relieving N is potentially divergent. Absolute N-2-fixation rates of the present study correspond with rates reported previously, even though likely underestimated due to an initial lag phase. Denitrification is also presumably underestimated due to incomplete nitrous oxide inhibition and/or substrate limitation. Besides these inherent limitations, we show that a relative comparison of N-2-fixation and denitrification activity between functional groups is possible. Thus, our approach facilitates cost-efficient sample processing in studies interested in comparing relative rates of N-2-fixation and denitrification.Peer reviewe