HUBUNGAN ANTARA STRES KERJA DENGAN KELELAHAN KERJA PADA PETUGAS LLAJ DINAS PERHUBUNGAN KOTA MANADO

Kelelahan kerja merupakan suatu masalah yang sering di temui di kalangan tenaga kerja. Stres kerja adalah salah satu faktor yang menyebabkan kelelahan kerja. Stres kerja disebabkan oleh beberapa faktor dorongan yaitu Perubahan pola kerja yang dialami dapat berupa peraturan kerja, deskripsi pekerjaan yang tidak jelas dan kemajuan teknologi yang digunakan dalam pekerjaan. Kondisi kerja yang berulang-ulang, membosankan, ketidakpastian tugas serta keterbatasan komunikasi dan umpan balik dapat menyebabkan kebingungan, putus asa dan stres bagi individu. LLAJ merupakan Dinas Perhubungan memiliki tugas dan fungsi untuk penetapan rencana umum lalu lintas dan angkutan jalan, manajemen rekayasa lalu lintas, perizinan angkutan umum, pembinaan sumber daya manusia penyelenggara sarana dan prasarana lalu lintas angkutan umum serta penyelidikan terhadap pelanggaran perizinan angkutan umum. Berdasarkan hasil observasi awal Ada beberapa petugas yang mengalami keluhan dalam bekerja seperti mudah emosi, nyeri punggung, panasnya terik matahari, kendaraan yang ramai, mengantuk, kurang berkonsentrasi, dan merasa nyeri pada bagian punggung. Penelitian ini dilakukan untuk mengetahui hubungan antara Stres kerja dengan Kelelahan Kerja pada Petugas LLAJ Dinas Perhubungan Kota Manado. Jenis Penelitian menggunakan penelitian Observasional Analitik dengan pendekatan studi potong lintang yang dilakukan pada bulan Juli - September 2020, dengan populasi dan sampel yaitu Petugas LLAJ berjumlah 45 Petugas. Instrumen penelitian yaitu menggunakan kuesioner yakni Alat ukur Perasaan Kelelahan Kerja (KAUPK2) dan Kuesioner Stres Kerja yang telah di uji validitas dan reliabilitasnya. Analisis data menggunakan uji korelasi fischer exact. Hasil penelitian Stres kerja dengan Kelelahan Kerja nilai rata-rata 11.11 dan nilai ρ= 0.049 (<0.05). Kesimpulan dari hasil penelitian tersebut terdapat Stres kerja berpengaruh terhadap Kelelahan Kerja pada pekerja, dan terdapat hubungan yang signifikan antara Stres Kerja dengan Kelelahan Kerja pada Petugas LLAJ Dinas Perhubungan Kota Manado Kata Kunci : Stres Kerja, Kelelahan kerja, Petugas LLAJ ABSTRACKFatigue from work is a problem that is often encountered in the workforce. Job stress is one of the factors that cause work fatigue. Job stress is caused by several encouraging factors, namely changes in work patterns experienced in the form of work regulations, unclear job descriptions and advances in technology used in work. Repetitive, tedious working conditions, uncertainty of tasks and limited communication and feedback can cause confusion, hopelessness and stress for individuals. LLAJ is the Department of Transportation which has the task and function of establishing a general plan for road traffic and transportation, traffic engineering management, licensing for public transport, fostering human resources for administering public transport traffic facilities and infrastructure as well as investigating violations of public transport licensing. Based on the results of preliminary observations, there are several officers who experience complaints at work such as emotional irritability, back pain, hot sun, busy vehicles, drowsiness, lack of concentration, and feeling pain in the back. This research was conducted to determine the relationship between work stress and work fatigue on road traffic officers at the Manado City Transportation Agency. This type of research used Analytical Observational research with a cross-sectional study approach which was carried out in July - September 2020, with a population and sample of 45 LLAJ officers. The research instrument used a questionnaire, namely the Work Fatigue Feeling Measurement Tool (KAUPK2) and the Job Stress Questionnaire which had been tested for validity and reliability. Data analysis used fischer exact correlation test. The results of the research work stress with Work Fatigue an average value of 11.11 and the value of ρ = 0.049 (<0.05). The conclusion from the results of this study is that work stress has an effect on Work Fatigue in workers, and there is a significant relationship between Job Stress and Work Fatigue in City Transportation Service Officers of the City Transportation Service. Keywords: Job Stress, Work Fatigue, LLAJ Office

Incipient carbonate melting drives metal and sulfur mobilization in the mantle

We present results from high-pressure, high-temperature experiments that generate incipient carbonate melts at mantle conditions (~90 kilometers depth and temperatures between 750° and 1050°C). We show that these primitive carbonate melts can sequester sulfur in its oxidized form of sulfate, as well as base and precious metals from mantle lithologies of peridotite and pyroxenite. It is proposed that these carbonate sulfur–rich melts may be more widespread than previously thought and that they may play a first-order role in the metallogenic enhancement of localized lithospheric domains. They act as effective agents to dissolve, redistribute, and concentrate metals within discrete domains of the mantle and into shallower regions within Earth, where dynamic physicochemical processes can lead to ore genesis at various crustal depths

Deletion of Macrophage Vitamin D Receptor Promotes Insulin Resistance and Monocyte Cholesterol Transport to Accelerate Atherosclerosis in Mice

Intense effort has been devoted to understanding predisposition to chronic systemic inflammation because it contributes to cardiometabolic disease. We demonstrate that deletion of the macrophage vitamin D receptor (VDR) in mice (KODMAC) is sufficient to induce insulin resistance by promoting M2 macrophage accumulation in the liver as well as increasing cytokine secretion and hepatic glucose production. Moreover, VDR deletion increases atherosclerosis by enabling lipid-laden M2 monocytes to adhere, migrate, and carry cholesterol into the atherosclerotic plaque and by increasing macrophage cholesterol uptake and esterification. Increased foam cell formation results from lack of VDR-SERCA2b interaction, causing SERCA dysfunction, activation of ER stress-CaMKII-JNKp-PPARγ signaling, and induction of the scavenger receptors CD36 and SR-A1. Bone marrow transplant of VDR-expressing cells into KODMAC mice improved insulin sensitivity, suppressed atherosclerosis, and decreased foam cell formation. The immunomodulatory effects of vitamin D in macrophages are thus critical in diet-induced insulin resistance and atherosclerosis in mice

Pharmacological and non-pharmacological countermeasures to Space Motion Sickness: a systematic review

IntroductionSpace Motion Sickness (SMS) is a syndrome that affects around 70% of astronauts and includes symptoms of nausea, dizziness, fatigue, vertigo, headaches, vomiting, and cold sweating. Consequences range from discomfort to severe sensorimotor and cognitive incapacitation, which might cause potential problems for mission-critical tasks and astronauts and cosmonauts' well-being. Both pharmacological and non-pharmacological countermeasures have been proposed to mitigate SMS. However, their effectiveness has not been systematically evaluated. Here we present the first systematic review of published peer-reviewed research on the effectiveness of pharmacological and non-pharmacological countermeasures to SMS.MethodsWe performed a double-blind title and abstract screening using the online Rayyan collaboration tool for systematic reviews, followed by a full-text screening. Eventually, only 23 peer-reviewed studies underwent data extraction.ResultsBoth pharmacological and non-pharmacological countermeasures can help mitigate SMS symptoms.DiscussionNo definitive recommendation can be given regarding the superiority of any particular countermeasure approach. Importantly, there is considerable heterogeneity in the published research methods, lack of a standardized assessment approach, and small sample sizes. To allow for consistent comparisons between SMS countermeasures in the future, standardized testing protocols for spaceflight and ground-based analogs are needed. We believe that the data should be made openly available, given the uniqueness of the environment in which it is collected.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021244131

Islamic legal methodologies and Shariah screening standards: application in the Indonesian stock market

This article provides a framework for applying the principles of Islamic legal methodology to determine the optimal Shariah screening standards for Islamic equity markets. It is argued that using maslahah mursalah (unrestricted benefit) is an appropriate method for identifying appropriate financial standards and its principles stipulate that the benchmark that yields the best economic returns to investors should be chosen. The methodological framework is applied to the Indonesia equity market where the economic implications of the Islamic stock screening standards of the Indonesian Islamic Shariah Stock Index and four global indices are assessed. Portfolios are constructed by applying Islamic stock screening standards for each of the indices by using data on 377 stocks listed in the Indonesian stock market for 5 years. The performances measured by the Sharpe ratio, Treynor index, and Jensen alpha reveal that the Dow Jones Islamic Index screening criteria performs the best. Based on the method of maslahah mursalah, the article recommends using the screening standard of this index in the Indonesian stock market to maximize benefits to investors. While the approach used in this article is applied to Islamic equity markets, the methodological framework can also be used for other similar cases in Islamic finance