IMPLEMENTATION OF PRECAUTIONARY PRINCIPLE IN COAL MINING LICENSES IN CENTRAL BENGKULU REGENCY OF BENGKULU PROVINCE

Coal mining license is a juridical instrument for businessmen to carry out coal mining activities. Coal mining license is also a preventive instrument to prevent coal mining activities from causing environmental damage and pollution. In the process of issuing and implementing coal mining licenses according to Law Number 32 of 2009 concerning Environmental Protection and Management, one must consider the precautionary principle, which is implemented by integrating environmental considerations, in making coal mining licenses decisions. However, coal mining activities carried out by 9 coal mining companies in the Watershed of Air Bengkulu, showed that there was environmental destruction and pollution seen along the Watershed of Air Bengkulu. This study aimed to determine the application of the precautionary principle to coal mining licenses and the legal consequences of coal mining license decisions that did not apply the precautionary principle. This research was conducted using juridical empirical/socio-legal research, and data analysis was carried out using a qualitative juridical approach. The results of this research showed that the government of Bengkulu Province has not applied the precautionary principle in the process and implementation of coal mining license in the Watershed of Air Bengkulu of Central Bengkulu Regency. The legal consequence of not applying the precautionary principle in the decision to issue 9 (nine) coal mining licenses which was an essential and material requirement in a decision to issue a permit was null and void (nietig van rechtwege) and could be canceled (vernietig baar), the government of Bengkulu Province has the authority to cancel the licenses decision because it is a State Administration official.

DEVELOPMENT OF MANUFACTURING INVENTORY MANAGEMENT SYSTEM USING MATERIAL REQUIREMENT PLANNING METHOD

Inventory has an important role in business activities. This is because inventory has an effect on changes in the production market and anticipates price changes in the demand for many goods. PT. Barkah Jaya Mandiri is a company engaged in manufacturing where the management of inventory at the company is still done conventionally. This causes various problems such as the occurrence of discrepancies in the stock of goods, discrepancies in data and final reports as well as obstacles in the production process in the event of a shortage or excess of raw materials. (Material Requirement Planning) in order to overcome the problems that occur in the company. The combination of the SDLC model and data collection techniques including observation, interviews and literature study were also carried out in this study in order to achieve the system that will be built to suit the targeted needs. With this system, the management of inventory data at this company can be done easily and accurately and save time compared to the previous system, so that the procurement of manufacturing raw materials is optimal and employee performance is better.

DEVELOPING AN E-BOOK BASED INTRODUCTION TO ECONOMICS LEARNING MATERIALS USING ALDIKO CLASSIC APPLICATION FOR SOCIAL SCIENCES STUDENTS

This research has a long-term purpose: to implement the study of introduction to economics effectively and efficiently. The learning materials developed were the non-printing type using the Aldiko Classic application so that the students do not have to spend more money to buy the printed learning material. The students just have to download the application (for free) in Playstore and install the learning materials of introduction to economics developed in such application. It was expected that the social sciences education students better understand the learning materials taught by the lecturer using the e-book and ease them to study independently. The stages in developing the e-book based learning material are as follows: 1.) analysis stage (analysis) covers the analysis of learning sources and learning material requirement, 2.) design stage (design) is to determine the learning material framework, cover learning material, layout, references, and creating assessment instrument of learning material, 3.) Development stage (Development) covers developing an e-book based learning material, experts validation and revision, 4.) implementation stage (implementation) is the trial test of learning material which has been validated, 5) Evaluation stage (Evaluation) is the stage to analyze weakness and strength of learning material which has been tested to students. The research results are 1) the development of an e-book based introduction to economics learning material has excellent feasibility because it has been conducted validation with an average score of 83% (valid). 2) the learning material of e-book based introduction to economics was declared practical to be used by the students based on the results of the response questionnaire with an average score of 77% (practical).

Material Requirement Planning and Supply Chain Performance of Oil and Gas Firms in Rivers State, Nigeria

Purpose: This study examined the relationship between material requirement planning and supply chain performance of Oil and Gas firms in Rivers State, Nigeria. Methodology: The study adopted an explanatory research design with a causal type of investigation. Both primary and secondary methods of data collection were used to obtain relevant data for analysis. The instrument of data collection employed was the questionnaire. The study population comprised of two hundred and ninety-three (293) oil and gas servicing firms operating in Rivers State as enlisted in the Nigerian oil and gas industry annual report (2020). The sample size for the study comprised 149 oil and gas firms in Port Harcourt, Rivers state. The sample size was determined using the Taro Yamene formula. Furthermore, the researcher selected one management staff from each of the oil and gas firms operating in Rivers State as respondents for the study hence a total of one hundred and forty nine (149) respondents were used for the study. The data was analyzed using the Pearson’s Product Moment Correlation statistic through the aid of statistical packages for social science version 23.0. Findings: The result of the study revealed the existence of significant and positive relationship between material requirement planning and supply chain performance of oil and gas firms in Rivers State. Recommendation: The researcher concluded that material requirement planning affect supply chain performance of oil and gas firms in Rivers state and therefore recommended that managers of oil and gas firms should strategically manage their material and inventory processes in other to improve their supply chain performance.

An open-source automated PEG precipitation assay to measure the relative solubility of proteins with low material requirement

The solubility of proteins correlates with a variety of their properties, including function, production yield, pharmacokinetics, and formulation at high concentrations. High solubility is therefore a key requirement for the development of protein-based reagents for applications in life sciences, biotechnology, diagnostics, and therapeutics. Accurate solubility measurements, however, remain challenging and resource intensive, which limits their throughput and hence their applicability at the early stages of development pipelines, when long-lists of candidates are typically available in minute amounts. Here, we present an automated method based on the titration of a crowding agent (polyethylene glycol, PEG) to quantitatively assess relative solubility of proteins using about 200 µg of purified material. Our results demonstrate that this method is accurate and economical in material requirement and costs of reagents, which makes it suitable for high-throughput screening. This approach is freely-shared and based on a low cost, open-source liquid-handling robot. We anticipate that this method will facilitate the assessment of the developability of proteins and make it substantially more accessible.

Optimasi Persediaan Bahan Baku Deker melalui Metode Material Requirement Planning pada CV Ajax Sport

Inventory of raw materials is the initial process in planning and controlling production. Because by planning and controlling raw materials, it becomes one of the processes to produce an optimal production system. In order for raw material inventory to be controlled, the MRP method is used in its completion. In the case study at CV Ajax Sport, it is known that controlling raw material inventory using MRP produces an inventory value of Rp. 139,911,944,- for 12 weeks, with the number of orders for F300 raw materials as many as 71,716 units and for G300 raw materials as many as 67,297 units. And this value shows a very large value both financially and product units, so it must be managed appropriately and accurately.