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All Journal Indonesian Journal of Chemical Science J-MAS (Jurnal Manajemen dan Sains) Adult Health Nursing Journal
Holifah, Siti
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Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Health Professions Medicine & Pharmacology Nursing Social Sciences

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ANALISIS PENAMBAHAN KOTORAN KAMBING DAN KUDA PADA PROSES BIOREMEDIASI OIL SLUDGE DI PERTAMBANGAN DESA WONOCOLO Holifah, Siti; Supartono, Tono; Harjono, Harjono
Indonesian Journal of Chemical Science Vol 7 No 1 (2018)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v7i1.19036

Abstract

Bojonegoro merupakan salah satu Kabupaten di Jawa Timur, yang memiliki kekayaan di bidang minyak dan gas bumi (migas) tepatnya di desa Wonocolo. Dalam proses penambangan minyak bumi akan terdapat limbah yang di hasilkan.. Bioremediasi merupakan suatu proses rehabilitasi lingkungan yang tercemar dengan memanfaatkan aktivitas mikroorganisme untuk menguraikan pencemar tersebut menjadi bentuk yang lebih sederhana, tidak berbahaya, dan memberikan nilai tambah bagi lingkungan. Kotoran hewan merupakan bahan organik yang mengandung banyak mikroba, kotoran hewan dengan kandungan nutrisi terbaik adalah kotoran kambing dan kuda. Penelitian ini bertujuan untuk menganalisis kemampuan konsorsium bakteri indigen lumpur minyak bumi dengan bakteri dari kotoran kambing dan kuda dalam mendegradasi limbah minyak bumi. Penelitian bioremediasi ini dilakukan secara bertahap yaitu isolasi, aplikasi, analisis parameter pH, TPH, TPC dan kadar air, serta analisis komponen hidrokarbon dengan Gas Chromatography (GC). Hasil penelitian ini diperoleh bahwa penggunaan kotoran kambing dan kuda pada bioremediasi limbah minyak bumi (oil sludge) mampu menjadi agen bioremediasi yang baik, dengan presentase penurunan kadar TPH tertinggi dengan proporsi limbah dalam reaktor 4:1:0 dengan presentase penurunan 68,83%. Pada waktu 5 minggu penelitian, TPH oil sludge terus mengalami penurunan Waktu remediasi yang dibutuhkan untuk menurunkan 100% kadar TPH pada limbah oil sludge dengan kotoran hewan kambing dan kuda adalah lebih dari 5 minggu, karena pada batas penelitian selama 5 minggu kadar penurunan TPH adalah sebesar 68,83%.
Pengaruh Rasio Profitabilitas & Solvabilitas terhadap Harga Saham Perusahaan SubSektor Makanan dan Minuman yang Terdaftar di BEI Periode 2017-2021 Holifah, Siti; Situngkir, Tiar Lina
J-MAS (Jurnal Manajemen dan Sains) Vol 9, No 2 (2024): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jmas.v9i2.1852

Abstract

The purpose of this study is to investigate how debt to equity ratio and return on equity affect the stock price of publicly traded food and beverage companies on the Indonesia Stock Exchange between 2017 and 2021. This research technique takes a quantitative approach. For this investigation, eight food and beverage companies listed on the Indonesia Stock Exchange were carefully selected using a purposeful selection technique. From 2017 to 2021, sampling was carried out every three months. SPSS 27 software, which consists of a number of tests including traditional assumption tests, was then used to evaluate the data. Normality, multicollinearity, autocorrelation, and heteroscedasticity of the data were assessed with this test. Furthermore, the coefficient of determination, partial test, simultaneous test, and descriptive statistical test were run. The results of this study indicate that in the period from 2017 to 2021, the variables Return on Equity and Debt to Equity Ratio will partially and simultaneously affect the stock price of food and beverage companies listed on the Indonesia Stock Exchange.
Relationship Between Level of Knowledge and Nurse Compliance in the Implementation of Standard Operational Procedures (SOP) for Infusing in the Emergency Installation Unit. Sholehah, Baitus; Holifah, Siti
Adult Health Nursing Journal Vol 1, No 1 (2024): Adult Health Nursing Journal
Publisher : Fakultas Kesehatan, Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/ahnj.v1i1.9339

Abstract

Introduction: Emergency Department is the main entry point for hospital services in providing first aid to patients. One of the common infections in hospitals is nosocomial infection. The success of controlling nosocomial infections in infusion procedures is not determined by advanced equipment but by the behavior of healthcare workers in properly caring for patients.. Objectives: This study aims to analyze the relationship between knowledge level and nurses' compliance with the Standard Operating Procedure (SOP) for Infusion Placement in the Emergency Department of RSU dr. H. Koesnadi Bondowoso.. Methods: The study was conducted in January 2016 at the Emergency Department of RSU dr. H. Koesnadi Bondowoso. A correlational design with a cross-sectional approach was used. The population consisted of all nurses in the Emergency Department, with a total sample of 18 participants, selected using total sampling technique. Data were collected through questionnaires and observation sheets, then analyzed using SPSS "Spearman Rho" with a significance level of 5%. Results: The Spearman Rho test results at a 5% significance level (α) showed a P value of 0.001, concluding that p ≤ 0.05, so H1 is accepted, and Ho is rejected. This indicates a significant relationship between knowledge level and nurses' compliance with the SOP for Infusion Placement in the Emergency Department of RSU dr. H. Koesnadi Bondowoso. Conclusions: The findings demonstrate that nurses' knowledge is fundamental in adhering to the SOP for Infusion Placement, thereby preventing nosocomial infections.
Co-Authors Harjono Harjono Sholehah, Baitus Situngkir, Tiar Lina Supartono, Tono