scholarly journals An inventory of Tortoise Beetles (Cassidinae) in Post Harvest Rice Field Ecosystem Area, Serdang Menang Village, Sirah Pulau Padang Sub-District.

2018 ◽  
Author(s):  
Ari Sugiarto
Keyword(s):  
Sampling Method ◽  
Rice Field ◽  
Sampling Location ◽  
Post Harvest ◽  
Major Threat ◽  
Field Ecosystem

Abstract Diversity of plants species in post harvest rice field ecosystem area tends to be higher compared to before harvest. Tortoise beetles can be a threat to plants species that exist in rice field ecosystem area. Serdang Menang Village has a fairly extensive rice field ecosystem area. An inventory of tortoise beetles in rice field ecosystem area, Serdang Menang Village will be very helpful in potential estimating of tortoise beetles to plants that exist in rice field ecosystem area, Serdang Menang Village. Determination of this sampling location was done randomly in post harvest rice field ecosystem area, Serdang Menang Village. The sampling method uses small insecting net and hand picking methods. Species of tortoise beetles found were 5 species (Aspidomorpha miliaris, Cassida subreticulata, Cassida circumdata, Cassida sp., dan Doloyala sp.) of a total 3 genera. Cassida circumdata and Aspidomorpha miliaris is tortoise beetles species that easiest to be found in this rice field ecosystem area which indicates that population is more than any species of tortoise beetles found. Cassida circumdata and Aspidomorpha miliaris can be major threat in rice field ecosystem area compared any species of tortoise beetles that found because a population is estimated to be more.

scholarly journals POPULATION DENSITY AND DISTRIBUTION PATTERNS OF KALAMBODO MUSSEL (Anodonta woodiana) IN THE SUB WATERSHED OF LAHOMBUTI RIVER, LAHOTUTU VILLAGE, KONAWE DISTRICT SOUTH EAST SULAWESI

AQUASAINS ◽  
2017 ◽  
Vol 8 (1) ◽  
pp. 759
Author(s):  
Muhammad Fajar Purnama ◽  
Abdullah Abdullah ◽  
Alfi Kusuma Admaja ◽  
La Ode Alirman Afu
Keyword(s):  
Population Density ◽  
Random Sampling ◽  
Sampling Method ◽  
Rice Field ◽  
Distribution Patterns ◽  
Average Density ◽  
Sampling Location ◽  
Channel Diameter ◽  
Irrigation Channel ◽  
Anodonta Woodiana

Abstrak The research was conducted in November 2018 - February 2019 in the Sub-watershed of the Lahombuti River in Lahotutu Village, Konawe Regency. The purpose of this study was to determine aspects of population density and distribution patterns of the Kalambodo (A. woodiana) in the Sub watershed of the Lahombuti tributary in Lahotutu Village, Wonggeduku District, Konawe Regency. The sampling location was determined using the purposive random sampling method. Sampling of Kalambodo (A. woodiana) was carried out at the location with the greatest abundance of A. woodiana, in the Sub watershed of the Lahombuti tributary of Lahotutu Village, on the "Main Rice Field Irrigation Channel" (diameter: ± 1,75 m, length: ± 4500 m, depth: ± 110 cm). Sampling of A. Woodiana was carried out at the same station with different spot sampling points. The Kalambodo samples were taken using a 1x1 m2 sized transect on 3 randomly assigned plots. The range of A. woodiana density per sub station is November 2018 amounting to 67-95 ind/m2, December 2018 is 41-61 ind/m2, January 2019 is 41-148 ind/m2 and February 2019 is 101- 114 ind/m2. The average density based on the period from the highest to the lowest is obtained in February 2019, January 2019, November 2018, and December 2018, which is 106.67 ind/m2, 81.33 ind/m2, 78 ind/m2, and 53 ind/m2, respectively. The distribution pattern of A. woodiana in the Sub-watershed of the Lahombuti River Basin generally shows a uniform category (Id <1), with a range of morisitha index values of 0.65-0.87.

ANALISIS PERHITUNGAN HARGA POKOK PRODUKSI DAN PENENTUAN HARGA JUAL ATAS PRODUK (Studi Kasus Pada PT Dasa Windu Agung)

2016 ◽  
Vol 1 (2) ◽  
pp. 183-190
Author(s):  
Dwi Urip Wardoyo
Keyword(s):  
Manufacturing Industry ◽  
Sampling Method ◽  
Manufacturing Companies ◽  
Test Analysis ◽  
Automotive Components ◽  
Convenience Sampling ◽  
Cost Of Production ◽  
The Cost ◽  
Keywords Cost

This study aims to determine the determination of the cost of production for products produced by PT. DWA. The Company is engaged in the manufacturing industry specialized in automotive components. Its activity is carried out through a series of production processes, so that expenses spent in the production will be calculated into the cost of the production sold. The population in this study were all manufacturing companies in Jakarta. Convenience sampling method selected one of the companies that get the confidence to assemble three national car project in Indonesia, namely Timor, Bakrie and Maleo. Test analysis used in this study is to test the calculation of full costing with job order costing. This study shows that (a) determination of the cost elements associated with the cost of production and (b) determining the cost of production on a product-based job costing with full costing approach. Keywords: cost of production, full costing

scholarly journals Cyanobacterial Toxins and Peptides in Lake Vegoritis, Greece

Toxins ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 394
Author(s):  
Sevasti-Kiriaki Zervou ◽  
Kimon Moschandreou ◽  
Aikaterina Paraskevopoulou ◽  
Christophoros Christophoridis ◽  
Elpida Grigoriadou ◽  
...  
Keyword(s):  
Public Health ◽  
Risk Assessment ◽  
Simultaneous Determination ◽  
Aquatic Ecosystems ◽  
Human Exposure ◽  
Bioactive Metabolites ◽  
Cyanobacterial Toxins ◽  
Major Threat ◽  
Almost All

Cyanotoxins (CTs) produced by cyanobacteria in surface freshwater are a major threat for public health and aquatic ecosystems. Cyanobacteria can also produce a wide variety of other understudied bioactive metabolites such as oligopeptides microginins (MGs), aeruginosins (AERs), aeruginosamides (AEGs) and anabaenopeptins (APs). This study reports on the co-occurrence of CTs and cyanopeptides (CPs) in Lake Vegoritis, Greece and presents their variant-specific profiles obtained during 3-years of monitoring (2018–2020). Fifteen CTs (cylindrospermopsin (CYN), anatoxin (ATX), nodularin (NOD), and 12 microcystins (MCs)) and ten CPs (3 APs, 4 MGs, 2 AERs and aeruginosamide (AEG A)) were targeted using an extended and validated LC-MS/MS protocol for the simultaneous determination of multi-class CTs and CPs. Results showed the presence of MCs (MC-LR, MC-RR, MC-YR, dmMC-LR, dmMC-RR, MC-HtyR, and MC-HilR) and CYN at concentrations of <1 μg/L, with MC-LR (79%) and CYN (71%) being the most frequently occurring. Anabaenopeptins B (AP B) and F (AP F) were detected in almost all samples and microginin T1 (MG T1) was the most abundant CP, reaching 47.0 μg/L. This is the first report of the co-occurrence of CTs and CPs in Lake Vegoritis, which is used for irrigation, fishing and recreational activities. The findings support the need for further investigations of the occurrence of CTs and the less studied cyanobacterial metabolites in lakes, to promote risk assessment with relevance to human exposure.

ANALISA LOGAM BESI (Fe) DI SUNGAI PASAR DAERAH BELANGWETAN KLATEN DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM

2017 ◽  
Vol 2 (1) ◽  
pp. 39
Author(s):  
Rahmi Nurhaini ◽  
Arief Affandi
Keyword(s):  
Heavy Metals ◽  
Sampling Method ◽  
Research Result ◽  
The Body ◽  
Clean Water ◽  
Observational Method ◽  
The Mean ◽  
The Republic

Iron (Fe) is one of many heavy metals that is corrosive resistant, dense, and has a low melting point. If accumulated in the body, the metal can cause some medical conditions, such as irritation to skin and eyes, breathing problems, and in the long term, cancer. This research aims to know generally the spread of metallic iron (Fe) in the river Pasar in Belangwetan, Klaten. This study was conducted using an observational method in which researchers did not examine the effects of interventions. Sampling was done using purposive sampling method taken from three points, namely the upper, middle, lower. Determination of iron levels by Atomic Absorption Spectrophotometer (AAS) obtained a positive result, and the data was processed using SPSS to determine the Mean and Standard Deviation. Of the research result, it could be known the Mean score was 2.33 ppm and SD was 0.0352. The result of this research indicated that the levels of iron in the river Pasar in Belangwetan were 2.33 ppm. It means that the levels violate the regulation of the Minister of Health of the Republic of Indonesia, which is not more than 1mg/L (1ppm) in the clean water

scholarly journals Analisis Hubungan Kelimpahan Plankton di Permukaan Terhadap Hasil Tangkapan Ikan Lemuru (Sardinella lemuru) di Selat Bali

2017 ◽  
Vol 4 (1) ◽  
pp. 151
Author(s):  
Hasanuddin Parulian Sihombing ◽  
I Gede Hendrawan ◽  
Yulianto Suteja
Keyword(s):  
Sampling Method ◽  
Strong Relationship ◽  
Zooplankton Abundance ◽  
Sampling Point ◽  
Water Sampling ◽  
Phytoplankton Abundance ◽  
Fish Food ◽  
Area Sampling ◽  
The Relationship

Lemuru fish is one of fishery commodity that has high economical value and one of fish that most catched by fisherman in Bali Strait. Lemuru fish had been caught in Bali Strait was fluctuating every month and every years. This condition was related with food source of Lemuru fish such as phytoplankton and zooplankton. So this research was conducted to explained the relationship phytoplankton and zooplankton abundance with Lemuru fish catched  in Bali strait. This study focus in Bali strait during March until May 2017. Determination of sampling point used area sampling method while water sampling occured in surface water with pouring method. Total of phytoplankton and zooplankton abundance in Bali strait in March until May had formed the sinusoidal model with their abundance ranged 301 ind/L – 604 ind/L and 7 ind/L – 12 ind/L. Plankton abundance in Bali strait in March until May (transisonal season 1) was categorized low abundance if compared with plankton abundance in another season. The low value of phytoplankton abundance caused by non upwelling phenomenon and grazing process and the low abundance of zooplankton caused by low rate of zooplankton and predation by Lemuru fish. Phytoplankton and zooplankton abundance had  strong relationship with Lemuru fish catched with correlation coefficient value 0.76 and 0.69. This condition caused by phytoplankton and zooplankton are source of Lemuru fish food.

scholarly journals Reputasi Auditor sebagai Pemoderasi Pengaruh Opini Audit dan Pergantian Manajemen pada Auditor Switching

2020 ◽  
Vol 30 (10) ◽  
pp. 2456
Author(s):  
Nyoman Ratna Candradewi ◽  
Gayatri Gayatri
Keyword(s):  
Regression Analysis ◽  
Sampling Method ◽  
Significant Positive Effect ◽  
Audit Opinion ◽  
Management Change ◽  
Analysis Techniques ◽  
Opinion Change ◽  
Auditor Switching ◽  
Positive Effect

Auditor turnover is a behavior that the client company does to transfer the auditor. This reaserch aims to obtain empirical evidence of the effect of audit opinion and management change on auditor switching and how the auditor's reputation is able to moderate the influence of audit opinion and management change on auditor switching. Determination of the research sample using purposive sampling method with a sample of 145 companies. Data analysis techniques used are logistic regression analysis and Moderated Regression Analysis (MRA). Based on the results of this study indicate that audit opinion and management change have a significant positive effect on auditor switching. However, the auditor's reputation is unable to moderate the effect of audit opinion and management change on auditor switching. Keywords: Audit Opinion; Change of Management; Auditor Switching; Auditor’s Reputation.

scholarly journals Implementation study of Good Agricultural Practices (GAP) of Red Fruit (Pandanus conoideus Lamk.)

2021 ◽  
Vol 883 (1) ◽  
pp. 012047
Author(s):  
M H Makaruku ◽  
A Y Wattimena ◽  
A S Mahulette ◽  
E Kembauw
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Agricultural Practices ◽  
Land Ownership ◽  
Survey Method ◽  
Implementation Study ◽  
Good Agricultural Practices ◽  
Post Harvest ◽  
Plant Cultivation ◽  
Fruit Plants

Abstract This study aims to determine and analyze the GAP components that have implemented by red fruit farmers. The method used in the study was a survey method of plant cultivation. The multistage random sampling method used to taking sampling sampling. The area selected for the study area uses the land ownership startification. Each village was randomly sampled as many as 10 farmers, the total number of which was 30 sampled farmers. The results showed that the farmers in the Taniwel District had not fully implemented the GAP guidelines in the cultivation of red fruit plants which included seeding methods, maintenance and post-harvest processing. This is due to the absence of outreach or counseling from the relevant Dinas regarding the GAP guidelines for red fruit plants.

scholarly journals The Effect of Corporate Social Responsibility, Profitability, and Leverage toward Tax Aggressiveness with Size of Company as Moderating Variable

2018 ◽  
Vol 9 (1) ◽  
pp. 63
Author(s):  
Riza Aulia Fitri ◽  
Agus Munandar
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Sampling Method ◽  
Stock Exchange ◽  
Corporate Tax ◽  
Tax Aggressiveness ◽  
Analysis Technique ◽  
Negative Effect ◽  
Corporate Social

This research aimed to examine the influence of Corporate Social Responsibility (CSR), profitability, and leverage toward tax aggressiveness by considering the size of the company as the moderating variable. The population was 111 companies listed on the Indonesian Stock Exchange (BEI) from 2010 to 2015. Determination of the sample used purposive sampling method, and it obtained a sample of 36 manufacturing based on certain criteria. The analysis technique used was the multiple regression analysis. The results show that CSR and leverage have a significant and negative effect influence on the tax aggressiveness of the corporate tax. Meanwhile, profitability does not significantly influence the tax aggressiveness in corporate taxes, and the size of company cannot moderate the influence of CSR, the profitability, and leverage on tax aggressiveness.

scholarly journals Karakteristik Kewirausahaan Petani Muda Skala Kecil Berorientasi Pasar

2020 ◽  
Vol 8 (2) ◽  
pp. 106
Author(s):  
Gema Wibawa Mukti ◽  
Rani Andriani Budi Kusumo ◽  
Yosini Deliana
Keyword(s):  
Rural Areas ◽  
Random Sampling ◽  
Sampling Method ◽  
Business Processes ◽  
Land Ownership ◽  
Small Scale ◽  
Managerial Skills ◽  
Entrepreneurial Characteristics ◽  
Object Of Study

This study aims to identify entrepreneurial characteristics possessed by young farmers. Young farmers who are the object of study are horticulture farmers in Kabupaten Bandung Barat. This study tries to explain the characteristics of farmers in terms of entrepreneurship. This study focuses on young farmers in Cisarua, Parongpong, and Lembang Subdistricts, with land ownership of no more than two hectares (small scale). The determination of the sample is done by a stratified random sampling method. The strata in this study are young farmers under the age of 40 and farming in the sub-sector of horticulture products in Kabupaten Bandung Barat. The next step is to determine the sample in the study as many as 120 farmers. Farmers who play a role as entrepreneurs are not only experts in the production process, but they have visionary results-oriented business managerial skills. The results of the study show that the majority of respondents have moderate (moderate) entrepreneurial characteristics. This is more due to the farming climate in rural areas which is still moderate, not oriented to professionalism and entrepreneurship. However, young farmers have a desire to develop, so that their business processes are different from those of farmers in general, where young farmers are starting to implement professional work methods in their gardens. The entrepreneurial approach has been seen in the way they do business, where they always want to be better, always look for the latest information, create innovations in the garden, apply management in their farming and take risks.

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