Respons Pertumbuhan Bibit Pinang (Areca catechu L.) Terhadap Aplikasi Limbah Solid Kelapa Sawit

Penelitian ini bertujuan Untuk melihat pengaruh pemberian dosis limbah solid kelapa sawit terhadap pertumbuhan bibit pinang dan untuk mendapatkan dosis limbah solid kelapa sawit yang memberikan pertumbuhan bibit pinang terbaik. Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Jambi yang terletak di Desa Mendalo Darat Kecamatan Jambi Luar Kota Kabupaten Muaro Jambi dengan ketinggian tempat ± 35 meter dpl dari bulan Maret sampai Juni 2021. Rancangan yang digunakan yaitu Rancangan Acak Kelompok (RAK) yang dikelompokkan berdasarkan tinggi bibit dengan 6 taraf perlakuan dosis limbah solid kelapa sawit (d) yaitu: Tanpa perlakuaan/Kontrol (d0), 100 g/Tanaman (d1), 150 g/Tanaman (d2), 200 g /Tanaman (d3), 250 g/Tanaman (d4), 300 g/Tanaman (d5). Variabel yang diamati yaitu Pertambahan tinggi bibit, pertambahan diameter batang, jumlah daun, berat kering tajuk, berat kering akar, dan rasio tajuk akar bibit pinang. Hasil penelitian menunjukkan bahwa Pemberian limbah solid kelapa sawit berpengaruh nyata terhadap pertumbuhan bibit pinang, yaitu pada variabel pertambahan tinggi bibit, pertambahan diameter batang, berat kering tajuk, dan rasio tajuk akar bibit pinang. Namun, tidak berpengaruh nyata terhadap jumlah daun dan berat kering akar bibit pinang. Dosis limbah solid kelapa sawit yang memberikan pertumbuhan bibit pinang terbaik dalam penelitian ini yaitu 100 g/tanaman

Respons Pertumbuhan Bibit Kopi Liberika (Coffea liberic W. Bull Ex Hiern) Terhadap Aplikasi Pupuk Kandang Sapi Di Polybag

Fluktuasi produksi dan produktivitas kopi Liberika di Provinsi Jambi disebabkan oleh beberapa hal salah satunya adalah umur tanaman kopi Liberika yang sudah tua mencapai kurang lebih 40 - 50 tahun sedangkan umur ekonomis tanaman kopi Liberika hanya berkisar 30 tahun. Oleh karena itu perlu upaya peremajaan tanaman kopi menggunakan bibit unggul. Untuk menyediakan bibit yang unggul diperlukan masukan yang dapat mempengaruhi pertumbuhan bibit dan satu diantara masukan tersebut adalah pemberikan pupuk organik. Penelitian ini bertujuan untuk mengetahui pengaruh dosis pupuk kandang sapi terhadap pertumbuhan bibit kopi Liberika di polybag dan memperoleh dosis pupuk kandang sapi yang memberikan pertumbuhan terbaik pada bibit kopi Liberika di polybag. Penelitian dilaksanakan di Teaching and Research Farm Fakultas Pertanian Universitas Jambi, Kampus Unja Mendalo. Waktu pelaksanakan selama kurang lebih tiga bulan, yaitu pada bulan Februari sampai bulan Mei 2020. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK), dengan 1 faktor yaitu pupuk kandang sapi (p) yang terdiri dari 5 perlakuan yaitu 0 g/tanaman, 160 g/tanaman, 190 g/tanaman, 220 g/tanaman dan 250 g/tanaman. Hasil penelitian menunjukkan bahwa pemberian pupuk kandang sapi dosis 0 g/tanaman sampai 250 g/tanaman pada bibit kopi Liberika umur 5 – 8 bulan belum mampu meningkatkan pertambahan tinggi tanaman, pertambahan diameter batang, pertambahan jumlah daun, umur muncul tunas, bobot kering tajuk, bobot kering akar sampai rasio tajuk akar. Tidak terdapat dosis pupuk kandang sapi yang mampu meningkatkan pertumbuhan bibit kopi Liberika di polybag

The Impact of Building Information Modelling (BIM) Strategies in Energy Sustainability Elements to Sustainable Campus Using PLS-SEM Approach

This paper establishes a structural relationship between BIM strategies in eleven (11) energy sustainability elements divided into management and technical aspects that impact a sustainable campus. The work established thirteen (13) benchmarks for independent variables and one (1) dependent variable. The exploratory research design used in this study led to the structural model development being the central focus of the study. A judgmental sampling technique was used to distribute a questionnaire survey among local engineers, assistant engineers, and technicians in Kota Kinabalu, Sabah, Malaysia. The research population survey employed 78 returned questionnaires. The analysis used Partial Least Squares Structural Equation Modelling (PLS-SEM) to test the hypotheses. The result indicate that the management and technical aspects of Energy Sustainability Elements (ESE) have a significant impact on sustainable campus with path coefficients of 2.447 and 5.032, respectively. The findings have revealed that hypothesis 1 and hypothesis 2 were all positive and significant at the 0.05 level, indicating that these two hypotheses are valid and supported. This study provides valuable information and insights for Malaysian universities to achieve a sustainable campus by adopting building information modelling (BIM) strategies in the context of energy efficiency

Anisotropic Pair Correlations and Structure Factors of Confined Hard-Sphere Fluids: An Experimental and Theoretical Study

We address the fundamental question: how are pair correlations and structure factors of hard-sphere fluids affected by confinement between hard planar walls at close distance? For this purpose, we combine x-ray scattering from colloid-filled nanofluidic channel arrays and first-principles inhomogeneous liquid-state theory within the anisotropic Percus-Yevick approximation. The experimental and theoretical data are in remarkable agreement at the pair-correlation level, providing the first quantitative experimental verification of the theoretically predicted confinement-induced anisotropy of the pair-correlation functions for the fluid. The description of confined fluids at this level provides, in the general case, important insights into the mechanisms of particle-particle interactions in dense fluids under confinement

Lyapunov Exponent Pairing for a Thermostatted Hard-Sphere Gas under Shear in the Thermodynamic Limit

We demonstrate why for a sheared gas of hard spheres, described by the SLLOD equations with an iso-kinetic Gaussian thermostat in between collisions, deviations of the conjugate pairing rule for the Lyapunov spectrum are to be expected, employing a previous result that for a large number of particles $N$, the iso-kinetic Gaussian thermostat is equivalent to a constant friction thermostat, up to $1/\sqrt{N}$ fluctuations. We also show that these deviations are at most of the order of the fourth power in the shear rate.Comment: 4 pages, to appear in Rapid Comm., Phys. Rev.

Seroprevalence of HIV in pregnant women in North India: a tertiary care hospital based study

Abstract Background Estimating the seroprevalence of HIV in a low risk population such as pregnant women provides essential information for an effective implementation of AIDS control programmes, and also for the monitoring of HIV spread within a country. Very few studies are available from north India showing the current trend in HIV prevalence in the antenatal population;which led us to carry outthis study at a tertiary care hospital in north India Methods Blood samples from pregnant women attending antenatal clinics at the All India Institute of Medical Sciences, New Delhi were collected after informed consent and pre-test counseling. The samples were tested for HIV antibodies as per the WHO guidelines, over a period of four years from January 2003 to December 2006. Results Of the 3529 pregnant women tested in four years, 0.88% (CI 0.5 – 1.24) women were found to be HIV seroreactive. Majority of the seroreactive pregnant women (41.9%) were in the age group of 20–24 years followed by the 30–34 yrs (25.8%) and 25–29 years (22.6%) age group. The mean age of the HIV positive women was 24.9 years (SD ± 1.49 yrs). The HIV seroprevalence rates showed an increasing trend from 0.7% (CI 0.14 – 2.04) in 2003–2004 to 0.9% (CI 0.49 – 1.5) in 2005–2006. This prevalence rate indicates concern, as Delhi and its adjoining states are otherwise considered as 'low prevalence states'. Conclusion Seroprevalence of HIV infection was found to be increasing in the last four years amongst pregnant women of North India. These findings are in contrast to the national projections.</p