The high population in Pekanbaru City requires a statistical control process on the number
of traffic accidents that occur. Controlling of the number of accidents is carried out to
monitor the level of accidents that ...
Nypa leaves (Nypa fruticans Wurmb) can be use as activated carbon due to cellulose,
hemicellulose and protein content. The purpose of this study was to optimize the
activation time of nypa leaves carbon. In this study, ...
Mangrove forest is one of the unique coastal ecosystems. The ecological
function of the mangrove forest is to prevent sea water intrusion, protect the coastline,
and provide a feeding ground. In general, the severity of ...
This study aims to determine the capacity and efficiency of activated carbon after going
through the regeneration process. The activated carbon was used to adsorb metallic
mercury (II) and then rinsed with HNO3 solution. ...
One of the oil palms harvesting processes is to determine the maturity level of Fresh Fruit
Bunches (FFB). FFB maturity is one of the determinants quality productions of palm oil
processing materials. In general, FFB ...
Fungi strain LBKURCC304 is a thermophilic fungi isolated from Bukik Gadang hot
spring, West Sumatera, can produce amylase enzyme based on semi-quantitatively and
quantitatively analysis. Morphological characteristics ...
Providing assistance to underprivileged families is carried out by collecting data for
each family head according to the type of assistance provided. In every village and area
there are many offers of assistance to every ...
The Covid-19 pandemic entered Indonesia in March 2020, so the government imposed
restrictions on people's movement in various regencies. The imposition of restrictions
on people's movement will have an impact on the ...
Water is one of the most valuable natural resources subsequent to the air. The utilization
of water can’t be separated from the quality of the water, where poor water conditions are not
only an indicator of environmental ...
The increase in the concentration of pollutants in the soil due to human activities is increasingly
worrying. Soil management requires soil pollution measurement technology due to heavy metal
contamination. Metal ...
This article discusses the properties of BP-algebra and its relation to BP-algebra
with BF-algebra, BH-algebra, and B-algebra 0 commutative. Their relationship is
proven by showing that the properties of BP-algebra, ...
This article discusses a new approach to evaluate the cubic roots of a quadratic
matrix order 2 by using the Cayley-Hamilton’s theorem. In addition, this article
also aims to show how the Cayley-Hamilton’s theorem can ...
This paper discusses about the nonparametric regression model based on local polynomial
estimators on gold prices in Indonesia. Local polynomial estimators can be obtained by
minimizing Weighted Least Square (WLS). Optimal ...
Quinazolines are aromatic heterocyclics with a bicyclic structure consisting of two sixmembered
aromatic rings fused between a benzene ring and a pyrimidine ring. Quinazoline has
various bioactivities such as antimalarial, ...
Kitolod (Hippobroma longiflora (L.) G. Don) is a plant group of
Campanulaceae. This plant is classified as a medicinal plant that is considered to
have antioxidant properties. Secondary metabolite compounds are ...
Trichoderma asperellum LBKURCC1 is one of the biocontrol agents capable of
producing the enzyme laccase. Laccase (EC 1.10.3.2) is an extracellular enzyme that
contains copper ions and catalyzes the four-electron oxidation ...
Determining the characteristics of each region before carrying out development is a step
or strategy that can be applied. The characteristics are based on indicators of the public
welfare of regencies and cities in the ...
Diversity of rambutan in Indonesia is one of the important aspects of germplasm and
their existance should be maintained. This study aimed to examine the morphological
variations of rambutan (Nephelium lappaceum) in ...
This article discusses the interactions among three population consisting of prey 1,
prey 2, and predator population. The model described involves the prey 1 population
influenced by Allee effect. Prey 1 and prey 2 ...
This article discusses of the multi-item inventory problem with backorder using
assignment model as mixed integer linear programming problem with branch-and-
bound method. This model aims to determine optimal policy of ...