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Palmyra Fiber as Additional Materials on Solid Concrete Brick of Aggregate
Published by Universitas Nusa Cendana
ISSN : 20399340     EISSN : 20392117     DOI : 10.36941/mjss
Core Subject : Economy, Science, Engineering,
Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Materials Science & Nanotechnology
The use of waste as an additional material on the building work was increasingly actively developed, such as straw, styrofoam, bagasse, cow manure. The key drivers of the use of waste is the potential for waste is increasing, due to the depletion of non-renewable resources. Papyrus rod diameter 60 cm, length 30 meters, has a volume of 5,652m3 as well as the edges of the Rods that can be used for construction with a thickness of 3 cm has a volume 0,942m3, Pith and fiber volume content of the stem 4,71m3/rod, then in one rod, there are 2 to 3 bunches each fruit bunches yield as much as 20 to 30 items for one harvest, by weight of fruit fiber 101.2 gram / fruit, Fiber characteristics are round and smooth is expected to reduce cracks in solid concrete brick and also can reduce the use of sand. This study aims to determine the compressive strength of the composition of the additional material of Rods fiber content and Fiber of palmyra fruit with a percentage 3%, 6% and 9%, mixing ratio; 1 cement and 5 sand in the manufacture of solid concrete brick. Rods fiber content used the average Ø1,031mm with a tensile strength of single fiber 39,305N / cm and fruit fiber to an average value Ø0,40mm with a tensile strength of single fiber 33,691N / cm. Making test specimen with a length of 20cm, width 10cm and thick 8cm. The test results of compressive strength after 14 days with the lowest value at 3% of additional material combination of fiber content of 6% fiber stem and fruit by 70,384Kg/cm²with a water content of 15,254% In weight position 2,935Kg as well as the highest value on the combination of additional material 0% rods fiber content and 3% fruit fiber by 98,821Kg/cm² with a water content of 15,031% In weight position 3,058Kg. While N (without additional material) with a compressive strength below the average id 63,704Kg/cm2 with water content of 10,167 in weight position 3,072Kg. Research result of solid concrete brick with additional material of rods fiber content and palmyra fruit fiber was included on the type B70, the average value of the compressive strength of 78.57 Kg / cm² (SNI-03-1348-1989) with a water content of <25%.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 7 Documents
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Search results for , issue "Vol. 11 No. 6 (2020): November 2020" : 7 Documents clear
Modelling Technological Progress Evaluation: Case of Lithuanian Manufacturing Industry Markauskas, Mantas; Baliute, Asta
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0058

Abstract

The goal for this research is to build a framework for analysis of technological spillover effect between sectors in Lithuanian manufacturing industry and assess whether predictors of the created model closely follow dynamic fluctuations of technological progress assessed values. Analysis of academic literature suggested using Granger causality test and vector autoregression (VAR) model to analyze intersectoral technological progress spillover effect in any manufacturing industry. Granger causality test can suggest a potential relationship between technological progress values of particular sectors in manufacturing industry while VAR model can define the exact form and extent of spillover effect. VAR models identify presence of intersectoral technological spillover effect in case of 15 out of 18 sectors in Lithuanian manufacturing industry. In case of a few sectors error terms of VAR models are not stationary suggesting that additional exogenous variables need to be included to increase accuracy of estimated coefficients before these models can be used in further analysis. After minor changes presented VAR models can be used for sensitivity analysis analyzing how changes in different sectoral level parameters affect economic development of manufacturing industry as a whole.
Impact of COVID-19 Pandemic on Mental Health Among Pharmacy Students at King Abdulaziz University, Jeddah, Saudi Arabia Badr, Aisha F.; Binmahfouz, Lenah S.
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0059

Abstract

Coronavirus disease (COVID-19) has spread from China to the world since December 2019. In addition to being a pandemic with mortality risk, COVID-19 affected global mental health. This study is the first to address the mental health aspects among Saudi pharmacy students during this pandemic and to explore the potential effect on their academic development. An online cross-sectional survey was distributed among 677 students from the Faculty of Pharmacy at King Abdulaziz University, Jeddah, Saudi Arabia. Participants were assessed with demographic information, the validated Generalized Anxiety Disorder 7-item (GAD-7) scale, the validated Patient Health Questionnaire-2 (PHQ-2), and multiple stress factors and motivators that might influence their academic development. Collected data were statistically analyzed. Results demonstrated that 32% of the participants were experiencing mild anxiety, 22% moderate anxiety, and 19% severe anxiety. Statistical significance in anxiety level was seen in students living alone, previously diagnosed with mental illness, and within their 4th pharmacy academic year. 49.5% of the participants were PHQ-2 positive and maybe showing symptoms of depressions. Major academic stressor for students with anxiety was their grades while major academic motivator was the coordination of each course studied. Over 70% of pharmacy students had anxiety, and half of them were PHQ-2 positive. We recommend universities to address all students’ psychological needs more often in the future, especially during a crisis like this pandemic and look into the possibility of having a Pass/Fail outcome rather than a grade-based GPA.
The Determinant of Market-Based Performance: Evidence from Manufacturing Companies in Indonesia Tikasari, Nopi; Surjandari, Dwi Asih
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0060

Abstract

The research aims to explore the determinant of firm’s market-based performance in Indonesia manufacturing companies, listed in Indonesia Stock Exchange between 2014 to 2019. The proxies used in this research are Return on Equity (ROE), Leverage, Earning per Share (EPS), Growth, Liquidity (Liquid) and Non-Debt Tax Shield (NDTS). The sampling method employs purposive sampling while the analysis is performed using E-views version 11. The result indicates that in partial, Leverage is negatively significant affect to Firm Performance while the other measured variables, namely Return on Equity, Leverage, Earning Per Share, Liquidity and Non-Debt Tax Shield, prove to be insignificant affect to firm performance. All variables simultaneously affect strongly on Firm Performance. This research implies that the management of the firm should observe Return on Equity (ROE), Leverage, Earning- per Share (EPS), Growth, Liquidity (Liquid) and Non-Debt Tax Shield (NDTS) closely in developing their strategy for better firm performance.
Adaptive Behavior in Children with Intellectual Disabilities Elshani, Hazir; Dervishi, Eglantina; Ibrahimi, Silva; Nika, Altin; Maloku Kuqi, Mimoza
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0061

Abstract

Children with intellectual disabilities experience deficits in all the areas of adaptive function and some other aspects, unfortunately little is known about the independent functioning among gender and age related to these impairments in this type of neurogenetic disorders as intellectual disabilities. Adaptive behavior is essential for an optimal functioning in these categories. 53 participants aged between 5 and 11 in school years have been administered the Vineland Adaptive Behavior Scales, Montreal Cognitive Assessment scale (MoCA) and Raven's Standard Progressive Matrices (IQ). Motor abilities are the area that is more affected in children with intellectual disabilities with a significant impairment appeared at an early age, which remain low even in the following years. These differences are potentially oriented by the etiologies related to the disorder. Adaptive behavior is an important area of challenge for children with intellectual disabilities throughout their development. Daily living skills and competencies are also a significant strength in relation to other areas of adaptive functioning.
Psychological Security Among University Students: Highlighting Pre-Service Teachers of Children with Disabilities and Pre-School Children Al-Zboon, Eman; Jumia'an, Ibrahim
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0062

Abstract

A survey of psychological security among pre-service teachers is significant for policy-makers in health and education services sectors to certify skilled teachers to work with children. So, the purpose of the current study was to investigate the level of psychological security of Jordanian pre-service special education and early childhood teachers. A descriptive method design was adopted. A survey was used to collect data about the level of psychological security of Jordanian pre-service teachers. Participants of the study were 216 special education and early childhood teachers. Results showed that teachers cited average levels of PS and 10.6 % of all participants had a low level of PS. Teachers rated thinking about the future, life being interesting, love between people, and unknown things as problematic issues in PS. Results revealed no statistically significant mean differences due to gender, average achievement or religious commitment. Recommendations for field and future research are presented.
The Effects of Pandemic on Construction Industry in the UK Shibani, Abdussalam; Hassan, Dyaa; Shakir, Nehal
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0063

Abstract

Pandemics such as: Covid-19 virus have a major impact on the economy of the world and the construction industry has not been exempted. This research investigates the effects of pandemic on construction industry in the UK, and particularly, ways in which the UK construction industry stakeholders such as project managers, contractors, engineers and subcontractors have responded to these pandemics. The research involved a 30 study participants who comprised site engineers, project managers, construction teams, subcontractors and contractors. The findings reported construction companies both dealing with residential and commercial development were major affected by Covid-19 pandemic due to lockdown and social distancing in construction sites. The strategy that was applied by construction companies was maintaining a good relationship with their suppliers and the safety of construction teams. The findings of the research will offer construction companies in the UK insights on how to deal with such pandemics in future to become more resilient.
Intra-African Trade in the Context of Globalization: A Re-examination of the ECOWAS Protocol on Trade Liberalization Onyia, Fredrick O.
Mediterranean Journal of Social Sciences Vol. 11 No. 6 (2020): November 2020
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2020-0064

Abstract

The Protocol on Trade Liberalization is one of the first five protocols that were originally annexed to the Treaty of ECOWAS. It was signed at Lome, Togo on November 5th 1976. To give further impetus to the Protocol, the Authority of Heads of States and Government at a summit held in Dakar, Senegal from July 25-27, 1992 adopted some modifications of the Trade Liberalization Scheme. With the sweeping torrent of Globalization, ECOWAS member-states have found themselves in a dilemma. The dilemma arises from the fact that pursuing the goals of integration and at the same time embracing the gains of globalization creates a paradox. The study investigates whether ECOWAS Protocol on Trade Liberalization enhanced intra-African trade more than trade with third countries with the emergence of globalization. It is anchored on the neo-functionalist theory and made use of documentary method of data collection. The study contends that intra-African trade within ECOWAS has declined with globalization while trade with third countries has increased. The implication is that the stimulation and synergy of economies of member-states which Trade Liberalization is supposed to engender has been weakened. The study recommends a further revision of the provisions of the Trade Liberalization scheme by ECOWAS member states to align with the emerging realities of globalization. It further recommends the improvement of transportation infrastructure in the sub-region and mustering of political will by the leaders to implement their resolutions, among others.

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