Late Holocene Heavy Metals Record of Jakarta Bay Sediments

Zuraida, Rina

doi:10.32693/bomg.33.2.2018.569

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…Implementation is significantly influenced by the organizational structure of the organization. The fundamental Standard Operating Procedure (SOP) of an organization is one of the most basic structural components (Zuraida, 2012). In both public and private companies, procedures are used to deal with situations that occur frequently.…”

Section: Human Resourcesmentioning

confidence: 99%

Agility Governance in Implementing Child Friendly Cities in Pekanbaru City in the Special Protection Cluster

Chika Amellia,

Geovani Meiwanda

2023

SJIIPS

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Through the Child Friendly City (KLA) program in the special protection cluster, this study sought to assess the function and agility of the Pekanbaru City government from the perspective of agility governance. It also sought to identify the factors that support the Child Friendly City (KLA) program's implementation in the special protection cluster. In this study, the methods for gathering data were observation, interviews, and documentation. The research was qualitative with a descriptive approach, which involved explaining the research's findings, delving into them to determine how they were arrived at, and drawing conclusions. According to Dowdy & Rieckhoff, the indicators of agile governance theory are Strategy, Structure, Process, and Human Resources, and they are used to provide answers to issue formulation. Because the output of this program is awards, the researchers also looked at the supporting factors for the operation of the program and determined that all indicators on program dexterity measurement have been met. The results of the analysis based on each of the program's dexterity measurement indicators show that the results obtained from the agility governance of the implementation of the Child Friendly Cities program for special protection are agile in their implementation

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Section: Human Resourcesmentioning

confidence: 99%

Agility Governance in Implementing Child Friendly Cities in Pekanbaru City in the Special Protection Cluster

Chika Amellia,

Geovani Meiwanda

2023

SJIIPS

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“…However, taxpayer compliance in paying taxes has fluctuated in recent years; therefore, local governments must perform optimization. The vehicle in question in this research is an all-wheel-drive vehicle used on the road and driven by technical equipment such as motors or other equipment that serves to change certain energy into kinetic energy of motor vehicles, including heavy equipment and large appliances that operate using a motor and wheels and are not permanent, as well as motor vehicles, operated (Zuraida, 2011). Jaklelana, until now, taxpayers of 480 thousand people tend to pay when netted raids.…”

Section: Introductionmentioning

confidence: 99%

The effect of the awareness of taxpayer and tax socialization on taxpayer compliance for motor vehicles

Ramdhan,

Rachman

2023

IJFAM

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Purpose: This study aimed to determine whether taxpayer awareness and tax socialization affect taxpayer compliance at the SAMSAT Office of Cianjur Regency. Research methodology: This study used a simple random sampling technique and the Slovin method using Statistical Program for Society Science (SPSS) software. Primary data were obtained by distributing the questionnaires. Results: Based on the results, it can be concluded that the variable awareness of taxpayers and tax socialization partially have a positive and significant effect on taxpayer compliance. Limitations: This study's limitation is the use of a questionnaire to obtain data, which allows the respondent to translate the questionnaire items differently from what the author intended. The questionnaire was distributed only to the taxpayer of a motor vehicle at the SAMSAT Office of Cianjur Regency. Contribution: Author, SAMSAT Office, and Public.

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“…Waste that enters marine waters reduces water quality and causes pollution. Heavy metals that enter the waters experience dilution and are distributed by turbulence and ocean currents (Zuraida et al, 2018). Environmental pollution from heavy metal contamination is a serious problem and is receiving great attention because of the adverse effects it causes throughout the world (Briffa et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

Budi Wahyono,

Muslim,

Suseno

et al. 2023

Marit. Technol. Res.

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Zinc (Zn) is an essential trace metal, but also a potential toxicant to aquatic organisms. Zinc is one of the toxicants from various industrial and domestic activities whose waste is directly discharged into water. One of the marine organisms used as an indicator of pollution is the blue swimming crab (Portunus pelagicus). Bioaccumulation studies of Zn in Portunus pelagicus from Jakarta Bay were conducted in a radiotracer laboratory. Laboratory experiments were done to study the uptake and release of 65Zn radioisotope in Portunus pelagicus. The experiments conducted were biota collection, acclimatization, bioaccumulation, and elimination. This study was to determine the relationship between the amount of 65Zn released into the aquatic environment and its effect on Zn bioaccumulation ability and radiation dose received by Portunus pelagicus. Biokinetics parameters, such as concentration factors CF, uptake rate constant ku, elimination rate constant ke, and concentration factor steady state (CFss) were investigated. The results showed that an increase in concentration would decrease the rate of absorption and rate of elimination, and that the concentration factor CF values varied from 7.82 - 60.62 ml.g-1 in Portunus pelagicus. The concentration factor at steady-state Zn was 25.55-59.47 ml.g–1, which is influenced by the concentration after 6 days of exposure. The depuration rate was observed to be high, with a value of retention 34.33 - 78.88 % of 65Zn absorbed by Portunus pelagicus, which was absent 7 days after exposure. Highlights Laboratory experiments lasting 14 days showed that Portunus pelagicus has the ability to accumulate the heavy metal zinc (Zn) from the environment and release it back into the water The highest bioaccumulation kinetics of zinc (Zn) metal in Portunus pelagicus during the 7-day experiment occurred at a contaminant concentration of 0.5 ppm with an absorption constant (ku) value of 0.7838 d-1 and a release constant value (ke) of 0.0892 d-1 Portunus pelagicus concentration factor (CF) has a moderate value and the smallest uptake constant (ku) and elimination constant (ke) value compared to other biota

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Late Holocene Heavy Metals Record of Jakarta Bay Sediments

Cited by 3 publications

References 32 publications

Agility Governance in Implementing Child Friendly Cities in Pekanbaru City in the Special Protection Cluster

Agility Governance in Implementing Child Friendly Cities in Pekanbaru City in the Special Protection Cluster

The effect of the awareness of taxpayer and tax socialization on taxpayer compliance for motor vehicles

Bioaccumulation of zinc by Portunus pelagicus: Nuclear application techniques that use radiotracer 65Zn to study influence of concentration of Zn in seawater

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