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All Journal Jurnal Administrasi Bisnis Journal of Advanced Civil and Environmental Engineering Journal of Tourism Sustainability
Yudha Prakasa
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Humanities Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Social Sciences

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Performance of Recycled Concrete Made from Railway Sleeper: Experimental Study S Suharwanto; Wachid Hasyim; Yudha Prakasa
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 4, No 2 (2021): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.4.2.104-112

Abstract

Concrete railway sleeper has been used in Indonesia since about 1990’s. It has more advantage that is less maintenance, stabile, good quality, shapeable, onsite raw material, and higher loading ability [9-10, 20 - 22]. But It is prone to damage such as cracking and breaking during construction, so it is often thrown away as a solid waste that can contaminate the land and reduce soil fertility. Therefore, it should be utilized in order to be more useful that is used as recycle aggregate. The concrete waste that is taken from broken concrete railway sleeper will be crush as an aggregate as raw material in the concrete to substitute part or all of the normal concrete. It is called recycled aggregate and concrete that is made from recycled aggregate is called recycled concrete. Base on the testing of raw material, the recycled aggregate can be met to the specification as ASTM [1], so it can be used for concrete raw material. Recycled concrete compressive strength result lower the normal concrete compressive strength in the same initial strength design. The strength value of recycled concrete is decrease about 1 – 17% for 25 MPa and 10 – 18% for 30 MPa. It is also happened to tensile strength of recycled concrete that decrease about 2 – 13 % for 25 MPa and 7 – 22 % for 30 MPa.
PENGARUH KNOWLEDGE MANAGEMENT TERHADAP KINERJA KARYAWAN DENGAN INDIVIDUAL INNOVATION CAPABILITY SEBAGAI VARIABEL INTERVENING (Studi pada Karyawan PT. Bank Rakyat Indonesia (Persero) Kantor Cabang Malang Kawi) Putri Rahma Dayanti; Mohammad Iqbal; Yudha Prakasa
Jurnal Administrasi Bisnis Vol 78, No 1 (2020): JANUARI
Publisher : Fakultas Ilmu Administrasi Universitas Brawijaya

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Abstract

This research is to analyse the influence of Knowledge Management on Employee Performance with Individual Innovation Capability as a Intervening Variable. This is an explanatory research with quantitative approach. The variables of this research are Knowledge Management, Individual Innovation Capability and Employee Performance. Hypothesis (1) There is a significant influence of Knowledge Management (X) on Employee Performance (Y), (2) There is a significant influence of Knowledge Management (X) on Individual Innovation Capability (Z), (3) There is a significant influence of Individual Innovation Capability (Z) on Employee Performance (Y), (4) There is a significant of Knowledge Management (X) on Employee Performance (Y) with Individual Innovation Capability (Z) as a Intervening variable. The number of samples in this research were 60 employees. The sample was obtained by using Slovin formula. This research used primary data by distributing questionnaires to all employees BRI Malang Kawi Branch Offices. The analysis technique used in this study is path analysis obtained using SPSS version 25. Kеywords: Knowledge Management, Individual Innovation Capability, Employee Performance АBSTRАK Penelitian ini bertujuan untuk mengetahui pengaruh Knowledge Management terhadap Kinerja Karyawan Dengan Individual Innovation Capability Sebagai Variabel Intervening. Jenis penelitian yang digunakan adalah penelitian penjelasan (explanatory research) dengan pendekatan kuantitatif. Variabel dalam penelitian ini meliputi Knowledge Management, Individual Innovation Capability dan Kinerja Karyawan. Hipotesis (1) terdapat pengaruh yang signifikan antara Knowledge Management (X) terhadap Kinerja karyawan (Y), (2) terdapat pengaruh yang signifikan antara Knowledge Management (X) terhadap Individual Innovation Capability (Z), (3) terdapat pengaruh yang signifikan antara Individual Innovation Capability (Z) terhadap Kinerja karyawan (Y), (4) terdapat pengaruh Knowledge Management (X) terhadap Kinerja karyawan (Y) dengan Individual Innovation Capability (Z)  sebagai variabel Intervening. Jumlah sampel pada penelitian adalah 60 karyawan. sampel tersebut diperoleh dengan rumus Slovin. Data yang digunakan merupakan data primer dengan melakukan penyebaran kuesioner kepada seluruh karyawan BRI Kantor Cabang Malang Kawi.Teknik Analisis yang digunakan dalam penelitian ini adalah analisis jalur (path) yang dioleh menggunakan SPSS versi 25. Kаtа Kunci: Knowledge Management, Individual Innovation Capability, Kinerja Karyawan
Opportunities and Challenges in Development Community-Based Marine Ecotourism on Samalona Island, Makassar City Yudha Prakasa; Sawu, Michael Rudolfus; Ulinnuha, Muhammad Farid
Journal of Tourism Sustainability Vol. 3 No. 2 (2023): Volume 3 Number 2 (2023)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/jtospolban.v3i2.86

Abstract

This study aims to assess the potential of developing community-based marine ecotourism on Samalona Island. The research seeks to analyze the policies concerning marine ecotourism development, the level of community engagement in this process, and the social consequences of implementing community-based marine ecotourism on Samalona Island, Makassar City. The study employs a verification approach within qualitative research, where the researchers act as instruments in data collection through various methods such as observation, interviews, documentation, and literature review. The findings of this study reveal several significant points. Firstly, the inadequacy of the community-based ecotourism development policy targeting Samalona Island is evident, partly attributed to the lack of a comprehensive Makassar City tourism development master plan. Additionally, the level of community participation in the planning and development of the tourism sector is limited, primarily confined to endorsing policies without actively contributing to decision-making processes. Despite its ability to boost the local economy, the positive environmental impact of community-based marine ecotourism on Samalona Island remains minimal. However, the study recognizes that this article contributes to a better understanding of the potential for marine ecotourism development on Samalona Island.
Co-Authors Hadi Nasbey Mohammad Iqbal Putri Rahma Dayanti S Suharwanto Sawu, Michael Rudolfus Ulinnuha, Muhammad Farid