FACTORS INFLUENCING JOB SATISFACTION AND JOB COMMITMENT AMONG THE FOOD DELIVERY WORKERS DURING COVID-19 PANDEMIC

The purpose of this study is to identify the factors influencing job satisfaction and job commitment among the food delivery workers during the COVID-19 pandemic. This study is using a qualitative methodology and this research has been conducted among food delivery workers in Bintulu, Sarawak. A set of interview questions was used as the research instrument in this study. Moreover, five (5) informants has been interviewed by the researcher and the data was collected based on the interview session. Also, all the data collection has been analyzed and further discussed by the researcher. Based on the findings, it had shown that factors such as salary offered, customer’s attitude, responsibilities, and services were influencing the food delivery workers’ job satisfaction. Meanwhile, the findings show that factors influencing job commitment among food delivery workers were flexible time, knowledges, and colleagues. In additional, the findings also show food delivery workers face some issues and challenges like safety, weather conditions and strict standard operating procedures (SOP). Thus, from the findings that has been discussed and analyzed, the recommendations were made to the organization, HR practitioners, and future researchers

Influence of Key Environmental Conditions on Microbially Induced Cementation for Soil Stabilization

Microbially induced calcite precipitation (MICP) is a sustainable biological ground improvement technique that is capable of altering and improving soil mechanical and geotechnical engineering properties. In this paper, laboratory column studies were used to examine the effects of some key environmental parameters on ureolytic MICP mediated soils, including the impact of urease concentrations, temperature, rainwater flushing, oil contamination, and freeze–thaw cycling. The results indicate that an effective crystal precipitation pattern can be obtained at low urease activity and ambient temperature, resulting in high improvement in soil unconfined compressive strength (UCS). The microstructural images of such crystals showed agglomerated large clusters filling the gaps between the soil grains, leading to effective crystals formation. The rainwater flushing was detrimental to the biocementation process. The results also indicate that traditional MICP treatment by the two-phase injection method did not succeed in treatment of oil-contaminated soils, and the proposed premixing of bioflocs with soil can significantly improve UCS and stiffness of oil-contaminated soils. Finally, MICP-treated soils showed a high durability to the freeze–thaw erosion, which is attributed to the interparticle contact points and bridging of crystals formation

Biologically Induced Cementation for Soil Stabilisation

Soil bio-cementation via microbially induced calcite precipitation (MICP) process generates calcite in the soil matrix through ureolysis by bacteria. This research has successfully produced effective calcite crystals; relatively larger in size than previously reported ones, and are rhombohedral in shape that favours the strategic spots of soil pore throats for precipitation. These effective calcite crystals bind sand grains together, resulting in an increase in both the strength and stiffness of the otherwise uncemented soil

Microstructural and geo-mechanical study on bio-cemented sand for optimization of MICP process

Limited research has been reported on strength improvement of biocemented soils in relation to crystal patterns of microbially induced calcite (CaCO3) precipitation (MICP). In this study, sand samples were treated under the coeffect of different bacterial culture (BC) and cementation solution (CS) concentrations to evaluate the optimum BC and CS combination that yields the highest soil strength. It was found that for lower CS conditions (0.25 M), higher BC produced stronger samples, whereas for higher CS conditions (0.5 M or 1 M), lower BC was more dominant in improving the soil strength. This can be attributed to the effectively precipitated CaCO3 crystals, which were in rhombohedral shape and large size and were concentrated at the soil pore throat rather than deposited on the individual sand grain surface. This finding was confirmed with the scanning electron microscopy (SEM) analysis. The strength and permeability of the optimized biocemented samples were also compared with sand samples treated with ordinary portland cement (OPC). The optimized biocemented sand provided higher strength and permeability than those obtained from the samples treated with similar content of OPC at a curing period of 28 days

UPAYA GURU PENDIDIKAN AGAMA ISLAM DALAM MENANAMKAN KARAKTER TANGGUNG JAWAB MELALUI PEMBIASAAN METODE KERJA KELOMPOK SISWA KELAS VIII SEKOLAH MENEGAH PERTAMA (SMP) NEGERI 2 GEGESIK KECAMATAN GEGESIK KABUPATEN CIREBON

Pendidikan memegang peran yang sangat penting dalam kehidupan suatu negara untuk menjamin kelangsungan hidup berbangsa dan bernegara, karena bagaimana pun juga, pendidikan merupakan sarana untuk mencetak sumber daya manusia (SDM) yang berkualitas. Sebagian siswa masih memiliki kurangnya karakter tanggung jawab saat kerja kelompok. Karakter tanggung jawab harus terus diterapkan dalam pembelajaran, karena karakter tanggung jawab siswa di SMP Negeri 2 Gegesik Kecamatan Gegesik Kabupaten Cirebon masih rendah. Tujuan penelitian ini pertama untuk mengetahui upaya guru PAI dalam menanamkan karakter tanggung jawab siswa kelas VIII SMP) Negeri 2 Gegesik, kedua untuk mengetahui metode kerja kelompok siswa kelas VIII SMP Negeri 2 Gegesik, ketiga untuk mengetahui faktor pendukung dan penghambat upaya guru PAI dalam menanamkan karakter tanggung jawab melalui pembiasaan metode kerja kelompok siswa kelas VIII SMP Negeri 2 Gegesik. Guru adalah semua orang yang berwenang dan bertanggung jawab terhadap pendidikan peserta didik, baik secara individual maupun secara klasikal, baik disekolah maupun di luar sekolah. Dalam Penelitian ini menggunakan jenis penelitian kualitatif deskriptif.Sumber data yang yang digunakan adalah sumber data primer dan sekunder.Dengan teknik pengumpulan data meliputi metode, observasi, wawancara dan dokumentasi. Sedangkan teknik analisis data yang digunakan dalam penelitian ini meliputi reduksi data, penyajian data dan penarikan kesimpulan. Upaya Guru Pendidikan Agama Islam Dalam Menanamkan Karakter Tanggung Jawab siswa kelas VIII Sekolah Menengah Pertama (SMP) Negeri 2 Gegesik kecamatan Gegesik Kabupaten Cirebon yaitu Mengembangkan kemampuan , berkembang nya potensi peserta didik agar menjadi manusia yang kreatif, dan mandiri untuk memotivasi siswa, untuk memiliki karakter tanggung jawab dengan selalu mengerjakan tugas dengan tepat waktu. Metode Kerja Kelompok siswa kelas VIII Sekolah Menengah Pertama (SMP) Negeri 2 Gegesik kecamatan Gegesik Kabupaten Cirebon Kerja Kelompok adalah suatu metode yang diterapkan oleh guru dalam rangka menciptakan situasi belajar yang di dalamnya para pelajar dapat belajar bersama-sama, sehingga mereka dapat mencapai hasil yang maksimal. faktor pendukung dan penghambat yaitu keluarga, lingkungan dan sekolah

The design method of slope stabilizing piles: A review

A comprehensive literature review was conducted to examine the current state of knowledge regarding passive piles which specifically focused on the recently adopted design methods for landslide prevention. Of all the publications compiled and reviewed for passive loading on piles, numerous efforts were found starting from over the last three decades, where major emphasis was placed on the various approaches ranging from theoretical and analytical to finite element methods. These methods have been adapted to predict the response of the piles, which also incorporates the influence of group interaction factors. Although research on passive piles subjected to lateral soil movement seems to berecent, there seemed to be a missing gap in research for pile groups used as landslide stabilizing piles. The authors believe that all of these state-of-the-art methods are widely accepted as it is supported by comparison with both field and laboratory data. Based on the review, the authors would like to highlight that further three dimensional (3D) modeling would offer another excellent alternative to study the response of those piles for landslide mitigation purposes

Numerical analysis of multirow arrangement of small diameter steel piles for landslide prevention

This paper intends to elucidate the prevention mechanism of small diameter steel piles (SDSP) and how multirow arrangement of the said piles affects the reinforced slope failure in landslide countermeasure. In this study, finite element analysis (FEA) employing Mohr-Coulomb’s elastic-perfectly plastic soil model was carried out to simulate the real condition in which, the effect of the varying ground densities (Dr=30% and Dr=80%) and cross sections (10 mm x 10 mm square and 3 mm in diameter piles) of the reinforcing rods in piles’ mechanism of landslide prevention were considered. Attempts also have been made to study the effect of introducing multiple rows arrangement of SDSP in terms of different cases of parametric study focusing on the effect of single, double and triple rows arrangements of those piles. Based on the results, it was observed that the shearing resistance in different pile cross sections is found to be significantly influenced by the variation of SDSP arrangement. However, irrespective of the piles arrangements, failure mode of a densely compacted ground is mainly governed by soil’s shearing resistance mobilized at a higher strain, while bending stiffness (EI) of the reinforcing material is more dominant in loose ground condition

Applications of microbial processes in geotechnical engineering

Over the last 10-15 years a new field of ‘biogeotechnics’ has emerged as geotechnical engineers seek to find ground improvement technologies which have the potential to be lower carbon, more ecologically friendly and more cost-effective than existing practices. This review summarizes the developments which have occurred in this new field, outlining in particular the microbial processes which have been shown to be most promising for altering the hydraulic and mechanical responses of soils and rocks. Much of the research effort in this new field has been focused on microbially induced carbonate precipitation via ureolysis (MICP); while a comprehensive review of MICP is presented here, the developments which have been made regarding other microbial processes, including microbially induced carbonate precipitation via denitrification and biogenic gas generation are also presented. Furthermore, this review outlines a new area of study: the potential deployment of fungi in geotechnical applications which has until now been unexplored

Numerical Modelling of the Consolidation Behavior of Peat Soil Improved by Sand Columns

This paper presents a ground improvement method using sand as material in columnar inclusion. The main focus of the study is to model the consolidation behavior of peat soil reinforced by sand columns. The effects of sand column length and column diameter were determined using numerical analysis. It was revealed that the final settlement strongly depends on the area replacement ratio. The numerical results showed that the installation of larger-diameter, fully penetrated columns reduced soil settlement. The settlement reduction results of our numerical analysis are in good agreement with the experimental results. In order to improve the confining stresses of sand, an alternative approach utilizing geogrid encasement was examined numerically. The increasing stiffness of geogrid effectively increased the load carrying capacity of the sand column. Based on the results, geogrid performs better in smaller-diameter columns