SULFONASI METIL ESTER BERBASIS CRUDE PALM OIL (CPO) PADA PEMBUATAN SURFAKTAN METHYL ESTER SULFONATE (MES) DENGAN VARIASI KONSENTRASI KATALIS CAO

Surfaktan metil ester sulfonat (MES) adalah surfaktan anionik yang saat ini sedang dikembangkan. Surfaktan ini dapat diproduksi menggunakan bahan baku metil ester dari minyak sawit. Surfaktan MES memiliki kelebihan yaitu ramah lingkungan (biodegradable), dan memiliki sifat detergensi yang baik. Tujuan dari penelitian ini untuk mengetahui kualitas surfaktan berdasarkan analisa bilangan asam, bilangan iod, dan tegangan permukaan. Konversi metil ester menjadi MES diawali dengan proses sulfonasi menggunakan agen pensulfonasi Na2S2O5 dan katalis CaO, dibleaching dengan H2O2 dan methanol, dinetralisasi dengan NaOH, dan dikeringkan dengan pompa vakum untuk menghilangkan sisa air dan methanol. Konsentrasi katalis pada proses sulfonasi divariasikan untuk mengetahui pengaruhnya terhadap kualitas MES yang dihasilkan. Variasi tersebut meliputi 1%, 1,5%, dan 2%. MES yang dihasilkan diuji kemampuannya dengan analisa bilangan asam, bilangan iod, serta uji penurunan tegangan permukaan. Hasil analisa bilangan asam menunjukkan angka bilangan asam terendah pada menit ke 90 dengan konsentrasi katalis 2%, sedangkan untuk analisa bilangan iod tertinggi pada menit ke 30 dengan konsentrasi katalis 2%, dan untuk hasil analisa bilangan iod yang dihasilkan menunjukkan kemampuan yang berbeda-beda dalam menurunkan tegangan permukaan

Rancang Bangun Prototipe Knowledge Management System Bahan Ajar Guru dengan Model Seci dan Mvc : Studi Kasus Sdit Al-hikmah Cipayung Depok

The ability of an educational institution in terms of science and technology became one of the very important factors. Despite those two things then it should be accompanied by a qualified human resources and competitive. SDIT Al-Hikmah Cipayung Depok is an Islamic educational institution where the transfer of knowledge is still limited in the forum work meetings there has been no documentation or technology that saves teachers 'knowledge and experience in teaching. Knowledge Management System is the most effective way in tackling the problem and solution sharing and transfer of knowledge teachers at Al-Hikmah SDIT Cipayung Depok. The research method used was the establishment of the SECI model of knowledge, architectural design model application with MVC (Model-View-Controller), testing validation by Focus Group Discussion (FGD) method using a questionnaire, software testing and black box testing and software quality testing with ISO 9126. The result of the research is a Knowledge Management System as the technology transfer of knowledge that is one of the efforts in reducing the use of paper (paperless office), making the efficiency of time, effort and cost, and better documentation management in the SDIT Al-Hikmah Cipayung Depok

Penerapan Metode Svm Berbasis Pso untuk Penentuan Kebangkrutan Perusahaan

Kebangkutan merupakan sebuah kondisi dari ketidakmampuan suatu Perusahan melakukan pengelolaan Perusahaan. Kebangkrutan berakibat sangat buruk bagi karyawan, Perusahaan dan ekonomi nasional. Untuk itu diperlukan suatu prediksi model akurasi yang tepat. Dalam melakukan prediksi model akurasi terdapat beberapa motode yang bisa digunakan dari metode pendekatan ilmu akuntansi dan metode pendekatan ilmu komputer. Dalam ilmu komputer telah diketahui bahwa data mining merupakan metode yang biasa digunakan dalam segala bidang untuk melakukan penilaian nilai akurasi. Data mining memiliki banyak tugas dan fungsi salah satunya mampu menghasilkan prediksi dan clustering sehingga dapat diperoleh prediksi mengenai data keuangan dan dapat mencegah suatu Perusahan dari kondisi kebangkrutan. Salah satu metode yang diketahui mampu menghasilkan nilai akurasi yang tinggi yaitu Support Vector Machine. Dalam penelitian ini akan dilakukan pengolahan data keuangan dengan menggunakan metode Support Vector Machine kemudian ditingkatan nilai akurasi dengan menggunakan metode optimasi yaitu PSO. Sehingga diperoleh nilai akurasi 99,6

Peranan Dimetil Sulfoksida Sebagai Krioprotektan Dalam Mempertahankan Kualitas Spermatozoa Ikan Gurami, Osphronemus Goramy Lacepede, 1801, Dua Puluh Empat Jam Pascakriopreservasi

Penelitian dilakukan dengan tujuan mengetahui pengaruh berbegai konsentrasi DMSO (0%, 5%, 7%, 10%, 13%, 15%, dan 17%) sebagai krioprotektan terhadap kualitas spermatozoa ikan gurami, Osphronemus goramy Lacepede, 1801, dua puluh empat jam pascakriopreservasi. Penelitian dilakukan di Balai Besar Pengembangan Budidaya Air Tawar (BBPBAT), Sukabumi. Semen dikoleksi dengan cara pengurutan (stripping) dan dievaluasi secara makroskopis (warna, pH, dan volume) dan mikroskopis (persentase motilitas, viabilitas, abnormalitas, dan konsentrasi spermatozoa) baik sebelum maupun sesudah kriopreservasi. Semen diencerkan dengan pengencer yang mengandung ekstender 189M dan krioprotektan DMSO (0%, 5%, 7%, 10%, 13%, 15%, dan 17%), disimpan pada cryotube 2 ml dan dikriopreservasi selama 24 jam. Peningkatan konsentrasi DMSO memengaruhi kualitas spermatozoa ikan gurami pascakriopresevasi. Konsentrasi DMSO yang terbaik berdasarkan hasil pengamatan adalah DMSO konsentrasi 13% (P > 0,05) dengan persentase motilitas sebesar 68,58%; abnormalitas sebesar 29%; dan viabilitas sebesar 63,5%

Mortality among healthcare workers in Indonesia during 18 months of COVID-19

The impact of SARS-CoV-2 infections upon Indonesian health care workers (HCWs) is unknown due to the lack of systematic collection and analysis of mortality data specific to HCWs in this setting. This report details the results of a systematic compilation, abstraction and analysis of HCW fatalities in Indonesia during the first 18 months of COVID-19. HCW who passed away between March 2020 and July 2021 were identified using Pusara Digital, a community-based digital cemetery database dedicated to HCW. We calculated the mortality rates and death risk ratio of HCWs versus the general population. The analysis indicates that at least 1,545 HCWs died during the study period. Death rates among males and females HCWs were nearly equivalent (51% vs. 49%). The majority were physicians and specialists (535, 35%), nurses (428, 28%), and midwives (359, 23%). Most deaths occurred between the ages of 40 to 59 years old, with the median age being 50 years (IQR: 39–59). At least 322 deaths (21%) occurred with pre-existing conditions, including 45 pregnant women. During the first 18 months of COVID-19 in Indonesia, we estimated a minimum HCW mortality rate of 1.707 deaths per 1,000 HCWs. The provincial rates of HCW mortality ranged from 0.136 (West Sulawesi) to 5.32 HCW deaths per 1,000 HCWs (East Java). The HCW mortality rate was significantly higher than that of the general population (RR = 4.92, 95% CI 4.67–5.17). The COVID-19 pandemic in Indonesia resulted in the loss of many hundreds of HCWs, the majority of whom were senior healthcare workers. The HCW mortality rate is five times that of the general population. A national systematic surveillance of occupational mortality is urgently needed in this setting

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

Correction to: Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

The original version of this article unfortunately contained a mistake

Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

Rancangan Animasi Pembelajaran Interaktif Alfabet pada Pendidikan Anak Usia Dini

– An early age is the golden age for children inreceiving and caught a novelty. From an early age to begiven the knowledge that is beneficial to the development ofthe mindset that would be useful for him and thesurrounding environment. The introduction of the alphabetis learning introduction letters that are the basis for earlychildhood. Teachers in providing an introduction to thealphabet to his disciples is to pronounce each letter of thealphabet and wrote the alphabet on a Blackboard, it provedless effective for pupils in the following and accept theintroduction of the alphabet. Animation serves as a mediumof learning that is interesting because in visual form themove accompanied audio which can be used to explain thedifficult subject matter presented. In facilitating theintroduction of the alphabet in an interesting then designedan interactive animation of the introduction of the alphabetfor the pupils in the OLD. This research uses the method ofcollecting the data of observation, interview, and the study ofthe literature. While the model of development system with awaterfall and applications using Macromedia FlashProfessional 8. The results of this research in the form ofstoryboards, design of state transition diagrams,implementation design and testing with interface blackboxand white box testing. The presence of interactive animatedintroduction to the alphabet is expected to help pupilsunderstand, recognize letters and words with interestinglearning media.Intisari - Usia dini merupakan usia emas bagi anak dalammenerima dan menangkap hal yang baru. Sejak usia diniperlu diberikan pengetahuan yang bermanfaat bagiperkembangan pola pikir yang nantinya bisa bergunauntuk dirinya dan lingkungan di sekitarnya. Pengenalanalfabet adalah pembelajaran pengenalan huruf-hurufyang dasar bagi anak usia dini.Guru dalam memberikan pengenalan alfabet kepadasiswa adalah mengucapkan masing-masing huruf alfabetdan menulis huruf alfabet di papan tulis, cara ini dirasakurang efektif bagi siswa dalam mengikuti dan menerimapengenalan alfabet. Animasi berperan sebagai mediapembelajaran yang menarik karena dalam bentuk visualbergerak disertai audio yang dapat di manfaatkan untukmenjelaskan materi pelajaran yang sulit disampaikan.Dalam memudahkan pengenalan alfabet secara menarikmaka dirancang sebuah animasi interaktif pengenalanalfabet untuk siswa di PAUD. Penelitian ini menggunakanmetode pengumpulan data observasi, wawancara, dansdteundgia np uwsatatekraf.a lSl eddaann gakpalink amsi omdeeln gpgeunngaekmabna nMgaacnr osmisetedmiaFlash Profesional 8. Hasil dari penelitian ini beruparancangan storyboard, state transition diagram,implementasi rancangan antar muka dan pengujiandengan blackbox dan white box testing. Kehadiran animasiinteraktif pengenalan alfabet ini diharapkan dapatmembantu siswa memahami, mengenal huruf dan katadengan media pembelajaran yang menarik.Kata Kunci – Usia Dini, Alfabet, Animasi Interaktif, Flas

Penerimaan Teknologi Zoom Cloud Meeting terhadap Minat Belajar Siswa dari Rumah dengan TAM

Pandemik covid-19 mengakibatkan di sektor pendidikan menjadi terhambat sehingga pembelajaran tatap muka tidak dapat dilakukan guna mencegah penyebaran virus. Oleh karena hal tersebut pembelajaran bagi peserta didik dilakukan dari rumah dan institusi pendidikan menyelenggarakan kegiatan pembelajarannya secara virtual dengan berbagai macam media pembelajaran online. Zoom Cloud Meeting merupakan salah satu media pembelajaran online dengan video conference yang paling banyak digunakan termasuk di SDIT Al Hikmah Cipayung Depok untuk KBM online. Pihak sekolah ingin mengetahui dan mengukur seberapa besar pengaruh teknologi zoom terhadap minat siswa belajar dari rumah (BDR) dari persepsi kemudahan dan kemanfaatan. Solusinya melakukan penelitian dengan model TAM, pengujian instrumen, pengolahan data memakai aplikasi SPSS versi 25 dengan jumlah sampel 61. Hasil yang diperoleh terdapat hubungan linier antara variabel kemudahan dan kemanfaatan dengan minat perilaku siswa dalam menggunakan teknologi yaitu nilai sig. deviation linearity sebesar 0,102. Kemudahan penggunaan dan manfaat terhadap minat belajar siswa ini berpengaruh positif dimana t hitung sebesar 6,016 lebih besar dari t tabel sebesar 2,001. Adanya hubungan atau korelasi kuat antara variabel kemudahan dan manfaat penggunaan terhadap minat perilaku siswa dengan koefisien korelasi sebesar 0,617 dengan demikian penerimaan teknologi zoom memiliki pengaruh positif pada persepsi kemudahan dan kemanfaatan terhadap minat belajar siswa dari rumah