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All Journal Animal Agricultural Journal JRPM (Jurnal Review Pembelajaran Matematika) Metalurgi National Journal of Occupational Health and Safety
Dita Mayasari
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Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Public Health

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KUALITAS HIJAUAN GAMAL (Gliricidia sepium) YANG DIBERI PUPUK ORGANIK CAIR (POC) DENGAN DOSIS BERBEDA Mayasari, Dita; Purbajanti, Endang Dwi; Sutarno, Sutarno
Animal Agriculture Journal Vol 1, No 2 (2012): Volume 1, Nomor 2, Tahun 2012
Publisher : Animal Agriculture Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.408 KB)

Abstract

Penelitian yang dilakukan bertujuan untuk mengetahui pengaruh pemberian pupuk organik cair dengan dosis berbeda terhadap kualitas hijauan gamal (Gliricidia sepium). Rancangan percobaan yang digunakan dalam penelitian adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 ulangan. Pemberian dosis pupuk organik cair pada perlakuan T0, T1, T2 dan T3 masing-masing adalah 0, 1, 3 dan 5%. Parameter yang diamati adalah kadar protein dan serat kasar hijauan gamal. Hasil penelitian menunjukkan adanya pengaruh pemberian pupuk organik cair yang paling baik terhadap kualitas hijauan gamal (G. sepium) yaitu pada perlakuan T2 (3% POC) yang memiliki nilai kualitas paling tinggi dari perlakuan T0, T1 dan T3. Nilai kadar protein dan serat kasar perlakuan T2 adalah 19,64% dan 42,29%.Kata kunci : Gliricidia sepium; pupuk organik cair; protein kasar; serat kasarABSTRACT The study was conducted aimed to determine the effect of liquid organic fertilizer with different doses of the forage quality gamal (G. sepium). Experimental design used in the study was completely randomized design (CRD) with 4 treatments and 5 replications. Liquid organic fertilizer dosing in treatments T0, T1, T2 and T3, respectively 0, 1, 3 and 5%. Parameters measured were protein and crude fiber content of forage gamal. The results showed the influence of liquid organic fertilizer on forage quality gamal is the treatment T2 (3% POC) that have the highest-quality value of treatments T0, T1 and T3. Value protein and crude fiber treatment T2 was 19,64% and 42,29%.Keyword : Gliricidia sepium; liquid organic fertilizer; crude protein; crude fiber
Comparative Studies Simulation Software for Bone Plate Compression Mayasari, Dita; Muhammad, Sirojuddin Kholil; Triwardono, Joko; Malau, Daniel Panghihutan; Utomo, Muhammad Satrio; Asmaria, Talitha
Metalurgi Vol 38, No 3 (2023): Metalurgi Vol. 38 No. 3 2023
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/metalurgi.2023.738

Abstract

Medical applications occasionally require PSI (patient-specific implant) designs to match the implant bone’s geometry. To verify and predict failures of the design as well as a treatment before the manufacturing process, FEA (finite element analysis) is employed to simulate when given a specific number of loads. Plenty of studies have done the FEA using a couple of types of software; however, to the best of our knowledge, there is no literature to compare those several FEA results with a comparable experiment. This study further analyzes material stress, particularly to compute the VMS (Von Misses stress) of the Ti6Al4V bone plate. Furthermore, this study proposes to examine and deliver a comprehensive understanding using the four most used software of COMSOL, Ansys, Abaqus, and Autodesk Inventor. The results of those four simulations are then compared with the stress test through the Hardness Vickers test. This study will contribute significantly as a novel comparison between VMS and hardness test as a stress prediction in an implant material.  
Analisis Berpikir Fungsional Siswa SMP dalam Generalisasi Pola Ditinjau dari Gaya Kognitif Taufik, Abdul Rachman; Mayasari, Dita; Natsir, Irmawanty; Dadi, Oswaldus
JRPM (Jurnal Review Pembelajaran Matematika) Vol. 8 No. 2 (2023)
Publisher : Department of Mathematics Education, Faculty of Tarbiyah and Teacher Training, UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15642/jrpm.2023.8.2.97-108

Abstract

This study focuses on the functional thinking activities of students in solving the task of generalization of patterns in terms of cognitive style. The research subjects consisted of 2 junior high school students in grade VIII consisting of one student with a field-dependent cognitive style and one student with a field-independent cognitive style determined by using the GEFT instrument. An interview based on a pattern generalization test was used to collect data on students' functional thinking. The results showed that at the stage of identifying patterns, both subjects used symbol representation in identifying patterns. At the stage of determining the relationship between two quantities, Field Independent uses trial and error rules to determine the relationship between two quantities, while Field Dependent lists all terms to determine the relationship between two quantities. At the stage of determining the general rule, Field Independent identifies the regularity of the pattern from the results of the relationship between two quantities, while Field Dependent determines the general rule by identifying the difference between two adjacent terms and then summing with the term in question.
Analisis Faktor Risiko Ergonomi terhadap Keluhan Gangguan Muskuloskeletal pada Pekerja UMKM Pengrajin Alas Kaki di Kecamatan Ciomas Mayasari, Dita; Susilowati, Indri Hapsari Hapsari
National Journal of Occupational Health and Safety Vol. 3, No. 1
Publisher : UI Scholars Hub

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Abstract

Work activity on footwear Micro, Small, and Medium Enterprises (MSMEs) such as sitting work position, bending down, neck bend, long duration of work and uncertain can cause pain that lead to musculoskeletal disorder complaint. This research aim to analyze individual risk factors, occupational risk factors, work environment risk factors, and work equipment risk factors against musculoskeletal disorder complaint on footwear MSMEs workers in Ciomas district. This research using cross sectional study design. The result of the research showed that 84,7% of respondent have a musculoskeletal disorder complaint. On some risk factors researched, there was a significant relationship between individual risk factors smoking behavior and musculoskeletal disorder complaint on shoulder also between occupational risk factors back risk exposure and musculoskeletal disorder complain on neck. On equipment risk factors measurement, show that are only a few workstations that comply with anthropometric standard, there are open’s table on 4th,5th, and 8th’s MSME, sewing machines, and finishing table’s at 8th MSME.
Co-Authors Asmaria, Talitha Dadi, Oswaldus Endang Dwi Purbajanti Malau, Daniel Panghihutan Muhammad, Sirojuddin Kholil Natsir, Irmawanty Susilowati, Indri Hapsari Hapsari Sutarno Sutarno Taufik, Abdul Rachman Triwardono, Joko Utomo, Muhammad Satrio