Using cohort change ratios to estimate life expectancy in populations with negligible migration: A new approach

Census survival methods are the oldest and most widely applicable methods of estimating adult mortality, and for populations with negligible migration they can provide excellent results. The reason for this ubiquity is threefold: (1) their data requirements are minimal in that only two successive age distributions are needed; (2) the two successive age distributions are usually easily obtained from census counts; and (3) the method is straightforward in that it requires neither a great deal of judgment nor “data-fitting” techniques to implement. This ubiquity is in contrast to other methods, which require more data, as well as judgment and, often, data fitting. In this short note, the new approach we demonstrate is that life expectancy at birth can be computed by using census survival rates in combination with an identity whereby the radix of a life table is equal to 1 (l0 = 1.00). We point out that our suggested method is less involved than the existing approach. We compare estimates using our approach against other estimates, and find it works reasonably well. As well as some nuances and cautions, we discuss the benefits of using this approach to estimate life expectancy, including the ability to develop estimates of average remaining life at any age. We believe that the technique is worthy of consideration for use in estimating life expectancy in populations that experience negligible migration

Epidemiological Profile of Twice Per Week Hemodialysis Patients of Top Referral National Hospital in Indonesia

Data regarding the epidemiology and laboratory test results of end-stage renal disease (ESRD) patients on twice per week hemodialysis in Indonesia remain limited. This study was conducted to describe the epidemiological and laboratory profiles of ESRD patients undergoing hemodialysis twice a week. This was a cross-sectional study in which the medical records data of all ESRD patients on hemodialysis at Cipto Mangunkusumo Hospital in 2017. Of 145 subjects, 51% were male. The mean age was 50.1 (SD 13.5) years and the mean body mass index (BMI) was 23.1 kg/m2 (SD 4.8). The aetiology of ESRD in these patients was primarily hypertension (40.7%). There was a significant difference in systolic blood pressure (SBP) and diastolic blood pressure (DBP) before and after hemodialysis (p=0.001 and p<0.001) The mean estimated glomerular filtration rate (eGFR) was 4.3 mL/min/1.73 m2 (SD 2.2) and significantly different between those <60 years old and ≥60 years old (p=0.004). In addition, there was an association between uric acid and post-hemodialysis SBP (p = 0.02). It is concluded that age and sex distribution played a significant role in determining epidemiological profile patients undergoing twice per week hemodialysis

Uncertainties quantification and modelling of different rheological models in estimation of pressure losses during drilling operation

The determination of pressure losses in the drill pipe and annulus with a very high degree of precision and accuracy is sacrosanct for proper pump operating conditions and correct bit nozzle sizes for maximum jet impact and forestalling of possible kicks and eventual blow outs during drilling operation. The two major uncertainties in pump pressure estimation that are being addressed in this research work are the flow behavior index (n) and the consistency index factor (k). It is in this light that the accuracy of various rheological models in predicting pump pressure losses as well as the uncertainties associated with each model was investigated. In order to come by with a decisive conclusion, two synthetic based drilling fluids were used to form synthetic muds known as sample A and B respectively. Inference from results shows that the Newtonian model underestimated the pump pressure by 78.27% for sample A and 82.961% by for sample B. While the Bingham plastic model overestimated the total pump pressure by 100.70% for sample A and 48.17% for sample B. Three different power law rheological model approaches were used to obtain the flow behavior index and consistency factor of the drilling fluids. For the power law rheological model approaches, an underestimation error of 23.5743% was encountered for the Formular method for sample A while the proposed consistency index averaging method reduces the error to 14.9306%. The Graphical method showed a reasonable degree of accuracy with underestimation error of 5.6435%. Sample B showed an underestimation error of 47.8234% by using the power law formula method while the Consistency averaging method reduced the error to 20.7508. The graphical method showed an underestimation error of 0.4318%

Experimental investigation of fluid loss and cake thickness control ability of zirconium (IV) oxide (

A major technical and economical concern of the oil well drilling industry is the potential damage to productive formations because of excessive drilling fluid filtration and its multiplier effect on cake thickness. High fluid loss (high cake permeability) results in thick filter cake which reduces the effective diameter of the hole (tight holes) and causes various problems such as excessive torque when rotating the pipe, excessive drag when pulling it and high swab and surge pressures due to reduced hole diameter and differential pipe sticking due to increase in pipe contact. It is in this light that the potential of Zirconium (IV) oxide (Z_r O_2) nanoparticles in combating excessive filtration problem in Water Based Mud was investigated. Preliminary results show that addition of 0.50g (Z_r O_2) nanoparticle concentration brought about 19.10% reduction in fluid loss and 14.29 % reduction in cake thickness for the High Temperature/ High Pressure (HPHT) filtration test at 500psi and 250 OF. Similarly, the highest reduction of 48.31% and 38.10% in fluid loss and cake thickness respectively was achieved with addition of an optimum concentration of 2.0g of (Z_r O_2) nanoparticles for the HTHP filtration test at the same temperature and pressure

E-Commerce to Improve Homemaker Productivity (Women Entrepreneur Empowerment at Meruya Utara, Kembangan District, West Jakarta, Indonesia)

Saat ini banyak ibu rumah tangga memiliki bisnis sampingan yang sesuai dengan keterampilan dan hobi mereka. Adapun tujuan dari bisnis sampingan tersebut adalah untuk membantu kebutuhan keuangan rumah tangga mereka. Penelitian sebelumnya telah menunjukkan bahwa ibu rumah tangga yang juga pengusaha perempuan memiliki kontribusi yang signifikan terhadap kesejahteraan keluarga. Namun demikian, terdapat kesulitan dari ibu rumah tangga dalam memasarkan produk dan layanan mereka. Pengabdian ini melaksanakan sosialisasi terkait cara membuat akun e-commerce dan menggunakannya sebagai alternatif untuk menjual produk dan layanan mereka. Selain itu, hasil dari kegiatan layanan masyarakat Internasional ini adalah bahwa ibu rumah tangga dapat menjual produk dan layanan mereka melalui e-commerce. Menurut hasil survei pada kegiatan sosialisasi ini, diketahui bahwa hambatan bagi ibu rumah tangga adalah masih rendahnya pendidikan mereka dimana 65% dari mereka memiliki pendidikan sekolah menengah. Juga, kepemilikan aplikasi internet banking dan mobile banking masih rendah, yaitu 35%. Dengan demikian, kepemilikan yang rendah atas aplikasi internet banking dan mobile banking membuat mereka kesulitan untuk menjual produk dan layanannya melalui e-commerce. Semua peserta sosialisasi menyatakan bahwa kegiatan ini bermanfaat dan menambah pengetahuan mereka. Selanjutnya untuk dapat meningkatkan omset penjualan mereka adalah melalui perbaikan kemasan produk dan layanan mereka untuk membuatnya lebih menarik bagi pembeli.  Kata kunci: Ibu Rumah Tangga, Pengusaha Wanita, Mobile Banking, Internet Banking, E-Commerce. &nbsp

Hubungan Beban Kerja Perawat Dengan Caring Perawat Di Instalasi Gawat Darurat Medik Prof. Dr. R. D. Kandou Manado

Beban kerja perawat adalah kemampuan tubuh seorang perawat dalam menerima tanggung jawab untuk mengerjakan suatu pekerjaan. Caring perawat adalah sikap/tindakan yang diberikan perawat kepada pasien berbentuk asuhan fisik dalam memperhatikan emosi, serta meningkatkan rasa aman dan keselamatan pasien. Tujuan Penelitian untuk mengetahui apakah terdapat hubungan antara beban kerja perawat dengan caring perawat di Instalasi Gawat Darurat Medik Prof. Dr. R. D. Kandou Manado. Desain Penelitian ini menggunakan survei analitik cross sectional. Teknik pengambilan sampel menggunakan total sampling. Sampel 30 responden. Teknik analisa data dilakukan dengan analisis univariat dan bivariat menggunakan uji chi square pada program computer. Hasil penelitian diperoleh nilai ρ= 0.025 yang menunjukan bahwa nilai ρ lebih kecil dari nilai α =0,05. Kesimpulan penelitian ini yaitu terdapat hubungan beban kerja perawat dengan caring perawat. Rekomendasi untuk menambah jumlah perawat pelaksana yang bekerja di instalasi gawat darurat medik

Upaya Memacu Pertumbuhan Tunas Mikro Kentang Kultivar Granola dengan Jenis dan Konsentrasi Sitokinin Berbeda

Micro-shoot growth is the first step in the potato microtuber formation. The main factors were known controlling microtuber formation including the media type, the concentration of sucrose, the type and concentration of plant growth regulators, temperature, and photoperiodicity. This research aimed to determine the influence of the t of cytokinin and its concentration on the micro-shoot formation of Granola cultivar of potato (Solanum tuberosum L.), as well as to determine the best cytokinin type and its concentration on micro-shoot formation of Granola cultivar potato (Solanum tuberosum L.). The research was experimental in a split-plot design. The main plot was the type of cytokinin (BAP and Kinetin), and the subplot was cytokinin concentration at five levels of concentrations, i.e., 0, 5, 10, 15 and 20 µM. This study replicated each treatment three times which resulted in obtaining 30 experimental units. The data obtained were then analyzed using an analysis of variance, followed by honest significant difference test at 95 and 99% levels of confidence. The results showed that the formation of micro-shoot of Granola cultivar of potato was controlled by the type and concentration of cytokinin used. The addition of 5‒15 μM of BAP was found to be the best treatments to stimulate micro-shoot formation of Granola cultivar of potato