scholarly journals Determination of Water Quality Based on Diversity of Plankton in Krueng Daroy Aceh Province

2020 ◽  
Vol 11 (2) ◽  
pp. 34-38
Author(s):  
Arihsyah Putra Zai ◽  
M. Ali Sarong ◽  
Mimie Saputri
Keyword(s):  
Air Quality ◽  
Diversity Index ◽  
Sampling Technique ◽  
Qualitative Approaches ◽  
Wiener Diversity Index ◽  
Aceh Province ◽  
Plankton Diversity ◽  
Main Producer

Plankton has a very important role, especially from the feed chain (the main producer) and as a bioindicator of fertility levels, on the Krueng Daroy River. This study aims to determine the air quality of Krueng Daroy based on the level of information and to find out information in Krueng Daroy, Aceh Province. This research method is a survey with a purposive sampling technique with quantitative and qualitative approaches. Data collection was conducted for 3 sampling times, with an interval of 3 days for 9 days in 3 research locations with each location consisting of 3 stations. The usability level was analyzed by calculating the Shannon-Wiener Diversity Index, and determining the quality descriptively. The results obtained a plankton diversity index in Krueng Daroy between 2,274 to 2,565 with moderate polluted air quality. The results of the plankton process in the Krueng Daroy River are moderate, with moderate polluted air quality.

scholarly journals Developing instrument of academic potential test analogy verbal ability for undergraduate students

2021 ◽  
Vol 15 (2) ◽  
pp. 234-241
Author(s):  
Efi Septianingsih ◽  
Mohammad Adam Jerusalem
Keyword(s):  
Undergraduate Students ◽  
Verbal Ability ◽  
Sampling Technique ◽  
Test Reliability ◽  
Bartlett’S Test ◽  
Verbal Analogies ◽  
Academic Potential ◽  
Potential Test

The paper aims to develop the instrument about analogy test to measure the level of intelligence of undergraduate students. Determination of the number of samples is done by purposive sampling technique. This instrument is analyzed by factor analysis. Of the 15 items that will be used to develop the academic potential test instrument for verbal analogies, 4 analysis factors. The formation of these 4 factors is from Eigenvalues greater than 1 so that there are only 4 factors that fulfill the requirements. Furthermore, 15 items of the tested instrument to 91 undergraduate student respondents obtained 2 items of invalid instrument with correlation coefficient ≤0.3, Kaiser-Meyer-Olkin (KMO) and Bartlett's test amounted to 0.785 with p 0.05. Trial results from the results of the trial results obtained that the average validity of the questions is 96.8%. Test reliability was analyzed using the Alpha (α) formula of Cronbach. The calculation is done using the help of the IBM SPSS version 22.0 Windows program and the coefficient of 0.806 is obtained. Based on the results of the research, it can be concluded that the quality of the developed instrument items has been valid and reliable.

scholarly journals The diversity of plankton as bioindicators in Kakap River Estuary, West Kalimantan

DEPIK ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 174-179
Author(s):  
Widadi Padmarsari Soetignya ◽  
Patrisia Marniati ◽  
Mardan Adijaya ◽  
Yunita Magrima Anzani
Keyword(s):  
Relative Abundance ◽  
Environmental Changes ◽  
Diversity Index ◽  
River Estuary ◽  
West Kalimantan ◽  
Abundance And Diversity ◽  
Index Value ◽  
Plankton Diversity ◽  
Research Period

Kakap River Estuary plays an essential role in the life organisms, but it is vulnerable to environmental changes and pollution caused by human activities. This study aims to assess the presence of plankton species, their abundance and diversity as aquatic ecological bio-indicators in Kakap River Estuary. Plankton and water samples were taken for three months, with a frequency of one sample per month, viz. in March, April and June 2020 from four sampling stations in Kakap River Estuary, West Kalimantan. A total of 34 species of plankton were observed from all sampling sites, and identified to belong to 18 classes. Chlorophyceae had the highest relative abundance among the phytoplanktons (40.10%), followed by Bacillariophyceae (21.86%) and Cyanophyceae (19.28%). Oscillatoria sp. and Hydrodictyon sp. were the most dominant phytoplankton species. There were 8 classes of zooplankton identified from all sampling stations throughout the research period. Hexanauplia had the highest relative abundance among the zooplanktons (36.56%) followed by Euglenophyceae (24.37%). The plankton diversity index (H ′) values ranged between 2.33 -3.11. The plankton evenness index value ranged from 0.79 to 0.89 which indicates high plankton evenness at all samping stations, and this is supported by a low dominance index value at all stations ranging from 0.06-0.16. Station 1 had high Shannon-Wienner diversity index score, while for station 2, 3, 4, their scores were in the moderate level. Overall. the diversity index of the plankton from all sampling sites indicated that the quality of the water had no pollution to light pollution level.Keywords:PhytoplanktonZooplanktonWater quality

scholarly journals Respon Guru Terhadap Flip Book Pembelajaran Bioteknologi Berbasis Fermentasi Khas Kalimantan Barat Di SMA Kubu Raya

2019 ◽  
Vol 3 (1) ◽  
pp. 24-28
Author(s):  
Mutia ulyanti Mutia ◽  
Hanum Mukti Rahayu ◽  
Mahwar Qurbaniyah
Keyword(s):  
High School ◽  
Data Collection ◽  
Sampling Technique ◽  
Average Response ◽  
Data Collection Tool ◽  
Validation Process ◽  
The West ◽  
West Kalimantan ◽  
Qualitative Approaches

The learning process of biotechnology material in SMA and MA Kubu Raya still has problems such as the lack of learning media that only textbooks and LKS. The textbooks and LKS have drawbacks, including only showing a few images, too much writing and material that does not yet contain the potential of local West Kalimantan biotechnology. So that development is carried out, namely the flip book that has gone through a validation process. However, the untrue response to the flip book is unknown, so the purpose of this study was to determine the teacher's response to the West Kalimantan-based biotechnology flip book learning typical of the Kubu Raya High School. The method used is descriptive with quantitative and qualitative approaches. The data collection tool in this study was using a closed questionnaire. Determination of the sample using purposive sampling technique with consideration of the area and school accreditation. The results showed that the average response of teachers of SMA and MA Kubu Raya to flip books in aspects of attraction was 84.99%, material aspects 82.34%, language aspects 84.73%, and media aspects 74.73%. Based on the results of the research conducted, it can be concluded that the teacher's response to the West Kalimantan-based biotechnology flip book learning typical of SMA Kubu Raya has positive criteria based on aspects of interest, material aspects, language aspects and media aspects.

Pengaruh Kualitas Layanan Terhadap Tingkat Kepuasan Masyarakat Pada Kantor Imigrasi Bengkalis

2020 ◽  
Vol 9 (1) ◽  
pp. 102-114
Author(s):  
Muhammad Fadhil Junery ◽  
Nur Asyira
Keyword(s):  
Data Collection ◽  
Service Quality ◽  
Quantitative Method ◽  
Central Government ◽  
Sampling Technique ◽  
Community Satisfaction ◽  
Convenience Sampling

This research aims to determine the immigration office services providing services to the community and how much influence the quality of immigration office services on the level of community satisfaction. This research uses a descriptive quantitative method. The population in this research amounted to 21613 people. While sampling uses the Slovin formula with convenience sampling technique so that a sample of 100 people is obtained. Data collection techniques used were observation, interviews, documentation, questionnaires and literature studies. The results of this research are that the service at the Bengkalis Immigration Office has been well fulfilled based on the determination of the central government. Then the service quality of Bengkalis Immigration Office has a significant effect on the level of community satisfaction with a percentage of influence of 68.6% and the remaining 31.4% is influenced by other variables.

scholarly journals Audit Lag Criteria Report as a Determination of the Reliability and Quality of Auditor's Report in Indonesia

2020 ◽  
Vol 11 (6) ◽  
pp. 96
Author(s):  
Iskandar Muda ◽  
Karina Valisia Davis ◽  
Erlina Erlina ◽  
Azizul Kholis ◽  
Gusnardi Gusnardi
Keyword(s):  
Sampling Technique ◽  
Financial Statements ◽  
Company Size ◽  
The Public ◽  
Ex Post ◽  
Analysis Technique ◽  
Ex Post Facto ◽  
A Company

This paperaims to knowthe quality indicatorsof the financial statements which consist of profitability, solvency and reputation of Registered Public Accountant (KAP)to the audit lagwith company size as a moderation variable either partially or simultaneously in LQ45 companies. This research is a comparative causal research with ex post facto approach. Purposive sampling technique is used in this research and there are 18 samples collected by this technique from LQ45 in Indonesia Company Issueryear 2010-2016. The data analyzed research is 126. Data analysis technique used Moderated Regression Analysis (MRA) with the Application ofEviews Software. The study concluded thatstudy showed that solvency, reputation of the public accounting firm and company size had a significant effect on Audit Lag, while profitability had no significant effect on Audit Lag. The size of a company able to moderate the effect of independent variablesto the Audit Lag and not haveto moderate the effect of the profitability to the Audit Lag.

scholarly journals Method for Estimation of CO2 Gains from Persons in Builidings

Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1309 ◽  
Author(s):  
Antonio Rodero ◽  
Dorota Anna Krawczyk
Keyword(s):  
Carbon Dioxide ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Carbon Dioxide Concentration ◽  
Co2 Concentration ◽  
Males And Females ◽  
Sources Of Co2

Carbon dioxide concentration is an important parameter to know Indoor Air Quality of a building. One of the most important sources of CO2 in poor ventilated building is human activity. This work presents a method for experimental determination of human CO2 generation rate based on measuring of time evolution of indoor CO2 concentration. The method is applied to 5 rooms of an educational building from Bialystok (Poland). Similar carbon dioxide gains were obtained in all rooms, around 0.0046 L/s, which correspond to theoretical CO2 generation rates of a sedentary activity for persons, males and females, between 21–30 years old, characteristics of occupants of analyzed rooms.

Determination of indoor air quality of a phytosanitary plant

2011 ◽  
Vol 694 (1-2) ◽  
pp. 67-74 ◽  
Author(s):  
Daniel Sanjuán-Herráez ◽  
Yelko Rodríguez-Carrasco ◽  
Luis Juan-Peiró ◽  
Agustín Pastor ◽  
Miguel de la Guardia
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air

scholarly journals KEANEKARAGAMAN JENIS GASTROPODA DI KAWASAN HUTAN MANGROVE DI KELURAHAN SETAPUK BESAR KOTA SINGKAWANG

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
. Mardi ◽  
M Sofwan Anwari ◽  
. Burhanuddin
Keyword(s):  
Mangrove Forest ◽  
Positive Impact ◽  
Diversity Index ◽  
Sampling Technique ◽  
Forest Area ◽  
Survey Method ◽  
Environmental Damage ◽  
High Level ◽  
Coarse To Fine

Mangrove Surya Perdana Mandiri is a conservation forest area that has a positive impact on the environment and fauna habitat. The main purpose of planting or reforestation in the Surya Perdana Mandiri mangrove forest area is that there are concerns about the high level of abrasion and environmental damage, so mangrove planting in the coastal area, especially the Setapuk Besar Village, Singkawang North Subdistrict. Gastropods is a group of shelled invertebrates and has the main characteristic of using its legs to walk. Gastropoda is a group of animals from mollusc phyla that can live on the type of substrate from coarse to fine. This study aims to examine the diversity of gastropods in the Surya Perdana Mandiri mangrove forest in Setapuk Besar Village, Singkawang Utara Subdistrict. The research method used the survey method. Determination of the location of gastropod research was carried out based on Purposive sampling technique. The results of observations carried out were 8 species consisting of 5 families. Line 1 consists of 63 individuals in line 2 consisting of 86 individuals and line 3 consists of 74 with individual totals of 223. Diversity index of line 1 with value H ̅ = 0.52, line 2 with value H ̅ = 0.56 and path 3 with the value H ̅ = 0.62. Based on these values, species diversity (H ̅) in each research line is categorized as having low diversity.Keywords: Diversity, Gastropods, Surya Perdana Mandiri Mangrove

scholarly journals Short Communication: Species composition and diversity of vegetation in dryland agricultural landscape

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Ida Ardiyaningrum ◽  
MARIA THERESIA SRI BUDIASTUTI ◽  
KOMARIAH KOMARIAH
Keyword(s):  
Species Composition ◽  
Agricultural Landscape ◽  
Short Communication ◽  
Diversity Index ◽  
Sampling Technique ◽  
Terrestrial Ecosystems ◽  
Importance Value Index ◽  
Importance Value ◽  
Vegetation Diversity ◽  
Wiener Diversity Index

Abstract. Ardiyaningrum I, Budiastuti MTS, Komariah. 2021. Short Communication: Species composition and diversity of vegetation in dryland agricultural landscape. Biodiversitas 22: 65-71. Drylands are a part of the terrestrial ecosystems with a relatively larger area compared to wetlands. Selo has dryland with steep slopes and high rainfall, resulting in relatively high soil erosion. The land use in this sub-district is dominated by plantations and agriculture, with conditions that have not been fully balanced by trees as a means of controlling erosion and supporting vegetation diversity. Therefore, studies on biodiversity are important as an indicator of dryland sustainability, especially in terms of soil and water conservations. This research aimed to study the species composition and diversity of vegetation in the dryland agricultural landscape in Selo Sub-district, Boyolali District, Central Java Province, Indonesia. Vegetation analysis was performed by using the quadratic sampling technique for tree category, pole category, sapling category, and seedling categories. The results indicated that Fabaceae had the highest number of species. Tree species with the highest Importance Value Index were Toona sureni, Artocarpus heterophyllus, and Casuarina junghuhniana, respectively. The Shanon-Wiener Diversity Index showed that the vegetation at tree, pole, and sapling stages had a moderate diversity, and seedling-stage vegetation had a low diversity.

scholarly journals Caféiculture Et Accès Aux Soins De Santé Au Burundi : Analyse De La Dynamique Des Mutuelles De Santé Des Caféiculteurs De La Province Kayanza Au Nord Du Burundi

2018 ◽  
Vol 14 (3) ◽  
pp. 427
Author(s):  
Ndabarushimana Alexis
Keyword(s):  
Health Care ◽  
Health Care Quality ◽  
Care Quality ◽  
Accès Aux Soins ◽  
Qualitative Approaches ◽  
Interview Guide ◽  
Coffee Farmers ◽  
Coffee Sector

This article highlights the dynamics of health mutuals of coffee farmers in Kayanza province. It shows the factors related to difficulties in accessing health care for coffee growers in Kayanza province. These factors are fundamentally linked to the socio-economic environment that structures the living conditions of coffee growers in a world where the Burundian government has opted a ‘‘laissez-faire’’ and ‘‘laissez-aller’’ policy in the coffee sector. In order to do this, we opted for qualitative approaches with the use of the interview guide and quantitative with the use of a questionnaire administered directly to the coffee growers of Kayanza province. In this situation of self-determination of coffee growers, this article highlights the constraints faced by mutual health organizations in their mission to be able to access health care quality of coffee farmers after having shown the role played by mutuals and FEMUSCABU in promoting the solidarity of coffee farmers in Kayanza province. This article also highlights how mutualists behave with their social vulnerability.

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