Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.18
A. Novra, Agus Syarif, Ahmad Nur Budi Utama, Istiqomah Malinda, Uce Lestari
This article describes the natural availability of medicinal plants used in the community health behavior of Suku Anak Dalam (SAD) in the Bukit Dua Belas National Park (BDNP) area. The SAD community, also known as the Kubu, Orang Rimba, or Orang Ulu, are a minority (marginal) ethnic group who live in remote areas and have minimal interaction with the outside world and maintain a primitive way of life amidst modernization. This level of availability is important in decision-making in the socio-economic empowerment program of the SAD indigenous community through the commercialization of medicinal plants. The survey research was conducted for 2 months in the Air Hitam District, Sarolangun Regency, Jambi Province. Data were collected through field observation and interviews with sources of information from the leader of the SAD group, usually called Tumenggung. The data analysis method used simple mathematical techniques to identify the determinants of the level of sustainability of the supply of medicinal plants. The research results showed that the types of medicinal plants classified as shrubs had a higher sustainable supply from nature. This group of medicinal plant species also has the opportunity to be cultivated so that it can be integrated with efforts to empower the SAD community both in the area (in-sites) and around the BDNP (ex-sites). The preservation of medicinal plants of the SAD community in the BDNP area is still maintained, except for several types of medicinal plants belonging to certain trees that require conservation efforts through protection and ecosystem enrichment. Based on the supply of medicinal plants, it can be concluded that a particular strategy is needed for each medicinal plant in developing its economic value, which is grouped into conservation and cultivation efforts, both in situ and ex situ.
本文描述了武吉杜阿贝拉斯国家公园（BDNP）地区Suku Anak Dalam（SAD）社区卫生行为中使用的药用植物的自然可用性。SAD社区，也称为Kubu、Orang Rimba或Orang Ulu，是一个生活在偏远地区的少数民族（边缘），与外界的互动很少，在现代化中保持着原始的生活方式。这种可用性水平在SAD土著社区通过药用植物商业化的社会经济赋权计划的决策中非常重要。调查研究在占碑省Sarolangun县的Air Hitam区进行了2个月。数据是通过实地观察和采访SAD小组（通常称为图孟贡）领导人的信息来源收集的。数据分析方法使用简单的数学技术来确定药用植物供应可持续性水平的决定因素。研究结果表明，灌木类药用植物具有较高的自然可持续供应量。这组药用植物物种也有机会被种植，以便将其与该地区（现场）和BDNP周围（现场外）的SAD社区的力量相结合。BDNP地区SAD群落的药用植物仍然得到保护，除了属于某些树木的几种类型的药用植物需要通过保护和生态系统丰富来进行保护。根据药用植物的供应情况，可以得出结论，每种药用植物在发展其经济价值时都需要一个特定的战略，该战略分为原位和异地保护和栽培工作。
{"title":"Natural Availability of Medicinal Plants Used by the SAD Community in the Bukit Duabelas National Park Area, Indonesia","authors":"A. Novra, Agus Syarif, Ahmad Nur Budi Utama, Istiqomah Malinda, Uce Lestari","doi":"10.55463/issn.1674-2974.50.1.18","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.18","url":null,"abstract":"This article describes the natural availability of medicinal plants used in the community health behavior of Suku Anak Dalam (SAD) in the Bukit Dua Belas National Park (BDNP) area. The SAD community, also known as the Kubu, Orang Rimba, or Orang Ulu, are a minority (marginal) ethnic group who live in remote areas and have minimal interaction with the outside world and maintain a primitive way of life amidst modernization. This level of availability is important in decision-making in the socio-economic empowerment program of the SAD indigenous community through the commercialization of medicinal plants. The survey research was conducted for 2 months in the Air Hitam District, Sarolangun Regency, Jambi Province. Data were collected through field observation and interviews with sources of information from the leader of the SAD group, usually called Tumenggung. The data analysis method used simple mathematical techniques to identify the determinants of the level of sustainability of the supply of medicinal plants. The research results showed that the types of medicinal plants classified as shrubs had a higher sustainable supply from nature. This group of medicinal plant species also has the opportunity to be cultivated so that it can be integrated with efforts to empower the SAD community both in the area (in-sites) and around the BDNP (ex-sites). The preservation of medicinal plants of the SAD community in the BDNP area is still maintained, except for several types of medicinal plants belonging to certain trees that require conservation efforts through protection and ecosystem enrichment. Based on the supply of medicinal plants, it can be concluded that a particular strategy is needed for each medicinal plant in developing its economic value, which is grouped into conservation and cultivation efforts, both in situ and ex situ.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49617999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.19
R. Salleh, K. Ali, Vivek Kumar, Siti Suraya Abd Razak, Muhammad Latif Khan
The influx of women into the workforce has been one of the dominant global social trends for the past fifty years (1970 onwards). Women contribute to half of the total population of Malaysia and play a pertinent role in the nation’s socio-economic development. The Malaysian oil and gas sector employs a significant number of academically qualified, talented, and capable women engineers to fill critical positions for organizational success and sustainability. However, gender-related and management studies have found that organizational support and talent retention of women at the workplace have posed challenges, including the oil and gas sector. This research aims to develop a preliminary conceptual framework to examine the perceived organizational support that contributes to the talent retention of women engineers in the Malaysian oil and gas sector. Two underpinning theories have been applied, i.e, the Perceived Organizational Support Theory (POST) and the Social Exchange Theory (SET). Internal perceived organizational support variables that influence employee retention and their challenges have been reviewed and examined through secondary data, online resources, and government documents. Social support, career growth, rewards, workload, and work flexibility may affect talent retention. Five hypotheses to investigate the factors leading to the retention of talented women engineers in organizations have been developed and discussed in this article. This study may bring positive impacts on talent retention and contribute to the limited gender studies in the engineering discipline within an Eastern setting in the oil and gas sector.
{"title":"Perceived Organizational Support and Talent Retention of Women Engineers in the Malaysian Oil and Gas Sector: A Conceptual Framework","authors":"R. Salleh, K. Ali, Vivek Kumar, Siti Suraya Abd Razak, Muhammad Latif Khan","doi":"10.55463/issn.1674-2974.50.1.19","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.19","url":null,"abstract":"The influx of women into the workforce has been one of the dominant global social trends for the past fifty years (1970 onwards). Women contribute to half of the total population of Malaysia and play a pertinent role in the nation’s socio-economic development. The Malaysian oil and gas sector employs a significant number of academically qualified, talented, and capable women engineers to fill critical positions for organizational success and sustainability. However, gender-related and management studies have found that organizational support and talent retention of women at the workplace have posed challenges, including the oil and gas sector. This research aims to develop a preliminary conceptual framework to examine the perceived organizational support that contributes to the talent retention of women engineers in the Malaysian oil and gas sector. Two underpinning theories have been applied, i.e, the Perceived Organizational Support Theory (POST) and the Social Exchange Theory (SET). Internal perceived organizational support variables that influence employee retention and their challenges have been reviewed and examined through secondary data, online resources, and government documents. Social support, career growth, rewards, workload, and work flexibility may affect talent retention. Five hypotheses to investigate the factors leading to the retention of talented women engineers in organizations have been developed and discussed in this article. This study may bring positive impacts on talent retention and contribute to the limited gender studies in the engineering discipline within an Eastern setting in the oil and gas sector.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48755886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.8
F. Ferry, R. Machmud, Soetrisno, A. Bachtiar
In Indonesia, cervical cancer is the second most common cancer in women after breast cancer. The low level of VIA examinations by women is due to several internal and external factors. This study determines the factors that influence the early detection of cervical cancer. The update in this research is with the high cost of Pap smear examination, a model that is more effective in detecting cervical cancer is created. The type of research used is analytic observational with cross-sectional design. The research subjects were husband and wife couples in the working area of 7 selected sub-districts in Padang City who met the inclusion criteria and were selected as research subjects. The sampling technique is multi-stage random sampling, which is sampling starting from random districts and villages. Then, at the Kelurahan level, the sample is taken by means of simple random sampling. Univariate analysis was used to obtain an overview of the frequency distribution and the percentage of each variable to be studied. Bivariate analysis was used to determine the relationship between each independent variable and the dependent variable. The results showed that there was a statistically significant relationship (p-value < 0.05) between the husband's support, knowledge, and perception of the benefits of WUS's VIA examination. However, the respondents' age, education level, wife's occupation, husband's occupation, age of marriage, perceived vulnerability, perceived seriousness, and perceived barriers did not have a significant relationship with the VIA examination by WUS.
{"title":"Factors That Influence Early Detection of Cervical Cancer: VIA Examination OMPHE (Obedient Male Partner in Health-Education and Engagement) Model","authors":"F. Ferry, R. Machmud, Soetrisno, A. Bachtiar","doi":"10.55463/issn.1674-2974.50.1.8","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.8","url":null,"abstract":"In Indonesia, cervical cancer is the second most common cancer in women after breast cancer. The low level of VIA examinations by women is due to several internal and external factors. This study determines the factors that influence the early detection of cervical cancer. The update in this research is with the high cost of Pap smear examination, a model that is more effective in detecting cervical cancer is created. The type of research used is analytic observational with cross-sectional design. The research subjects were husband and wife couples in the working area of 7 selected sub-districts in Padang City who met the inclusion criteria and were selected as research subjects. The sampling technique is multi-stage random sampling, which is sampling starting from random districts and villages. Then, at the Kelurahan level, the sample is taken by means of simple random sampling. Univariate analysis was used to obtain an overview of the frequency distribution and the percentage of each variable to be studied. Bivariate analysis was used to determine the relationship between each independent variable and the dependent variable. The results showed that there was a statistically significant relationship (p-value < 0.05) between the husband's support, knowledge, and perception of the benefits of WUS's VIA examination. However, the respondents' age, education level, wife's occupation, husband's occupation, age of marriage, perceived vulnerability, perceived seriousness, and perceived barriers did not have a significant relationship with the VIA examination by WUS.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42023026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.25
Khaoula Khennou, B. Touri, Hind Baba, Aziz Kasmi, Hind Bouzoubaa, Bouhaba Abdelmounaim
This study aims to investigate the most successful educational systems worldwide and the Moroccan educational system to determine the causes constraining the socio-educational development in Morocco. This comparative study relies on a qualitative methodology based on an inductive approach called the empirical-inductive approach, which starts from facts and real and observable data. This scientific method allowed us to identify our subject in terms of the best-performing educational system. The sample includes one or two educational systems from five continents: Africa (Morocco), America (Canada and the United States), Asia (Japan), Europe (France and Finland), and Oceania (Australia) through the comparison of the most common criteria between each country mentioned: the school system (cycles), teacher training, the number of hours a teacher works, teacher salaries and the number of students per class. This study provides a clear picture of the most successful education system that has been able to manage the masses and reveals the secret of its successful educational management policies. It is the Canadian education system that is a member of the Organization for Economic Cooperation and Development (OECD) according to the Program for International Student Assessment with an OECD average of 520 (score above the OECD average of 487), and Morocco is in 75th place about four steps from the last with an OECD average of 359 (score well below the OECD average 487). The above is more than a reason to be inspired by the education system of this leading country in the field, which would lead to better results in terms of structural transformation, inclusive development, and efficient management of Moroccan education networks in the coming days.
{"title":"Comparative Study between the Best-Performing Education Systems of the Five Continents and That of Morocco","authors":"Khaoula Khennou, B. Touri, Hind Baba, Aziz Kasmi, Hind Bouzoubaa, Bouhaba Abdelmounaim","doi":"10.55463/issn.1674-2974.50.1.25","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.25","url":null,"abstract":"This study aims to investigate the most successful educational systems worldwide and the Moroccan educational system to determine the causes constraining the socio-educational development in Morocco. This comparative study relies on a qualitative methodology based on an inductive approach called the empirical-inductive approach, which starts from facts and real and observable data. This scientific method allowed us to identify our subject in terms of the best-performing educational system. The sample includes one or two educational systems from five continents: Africa (Morocco), America (Canada and the United States), Asia (Japan), Europe (France and Finland), and Oceania (Australia) through the comparison of the most common criteria between each country mentioned: the school system (cycles), teacher training, the number of hours a teacher works, teacher salaries and the number of students per class. This study provides a clear picture of the most successful education system that has been able to manage the masses and reveals the secret of its successful educational management policies. It is the Canadian education system that is a member of the Organization for Economic Cooperation and Development (OECD) according to the Program for International Student Assessment with an OECD average of 520 (score above the OECD average of 487), and Morocco is in 75th place about four steps from the last with an OECD average of 359 (score well below the OECD average 487). The above is more than a reason to be inspired by the education system of this leading country in the field, which would lead to better results in terms of structural transformation, inclusive development, and efficient management of Moroccan education networks in the coming days.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45148767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.24
S. Jamali, Z. Kalhoro, A. W. Shaikh, Muhammad Saleem Chnadio
The aim of this research article is to develop a three-step optimal iterative technique using Hermite interpolation for the solution of nonlinear algebraic and transcendental equation arises in chemical engineering models. In this connection, we proposed an optimal three-step eight-order technique without derivative and, has a high efficiency index. The convergence analysis of the proposed method is also discussed. For this demonstration, we apply the new technique to certain nonlinear problems in chemical engineering, such as, the conversion in a chemical reactor, a chemical equilibrium problem, azeotropic point of a binary solution and Continuous Stirred Tank Reactor (CSTR). And the study of dynamics is also used to demonstrate the performance of the presented scheme. It’s observed from the Comparison tables and dynamics, the proposed technique is more efficient compared to other existing methods.
{"title":"Solution of Chemical Engineering Models and Their Dynamics Using a New Three-Step Derivative Free Optimal Method","authors":"S. Jamali, Z. Kalhoro, A. W. Shaikh, Muhammad Saleem Chnadio","doi":"10.55463/issn.1674-2974.50.1.24","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.24","url":null,"abstract":"The aim of this research article is to develop a three-step optimal iterative technique using Hermite interpolation for the solution of nonlinear algebraic and transcendental equation arises in chemical engineering models. In this connection, we proposed an optimal three-step eight-order technique without derivative and, has a high efficiency index. The convergence analysis of the proposed method is also discussed. For this demonstration, we apply the new technique to certain nonlinear problems in chemical engineering, such as, the conversion in a chemical reactor, a chemical equilibrium problem, azeotropic point of a binary solution and Continuous Stirred Tank Reactor (CSTR). And the study of dynamics is also used to demonstrate the performance of the presented scheme. It’s observed from the Comparison tables and dynamics, the proposed technique is more efficient compared to other existing methods.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43995637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.17
Lee Jung-ho
This study was invested to investigate the effects of a treatment method that can apply the theory of neurorehabilitation for rehabilitation treatment of stroke patients on spasticity, balance ability, and walking ability. In this study, 30 people diagnosed by a rehabilitation medicine specialist were divided into experimental group A and experimental group B through a random assignment method. Experimental group A received extracorporeal shock wave therapy on the paralyzed lower extremity after proprioceptive neuromuscular facilitation treatment, and experimental group B received non-gravity treadmill training after proprioceptive neuromuscular facilitation treatment. All treatments were performed 3 times a week for 6 weeks, and pre- and post-evaluation were conducted. Spasticity, gait speed, dynamic balance ability, and ankle angle were measured to evaluate the treatment effect. In the results of the study, the decrease in spasticity was statistically significantly higher in experimental group A than in experimental group B, and the improvement in walking speed and dynamic balance ability was statistically significantly higher in experimental group B than in experimental group A. In addition, the change in ankle angle was greater in experimental group A than in experimental group B. In conclusion, various treatment methods should be applied simultaneously to improve the quality of life and quickly return to society in stroke patients.
{"title":"Effects of Overlapping Action of Clinically Applied Rehabilitation Interventions Based on the Theory of Neuroplasticity","authors":"Lee Jung-ho","doi":"10.55463/issn.1674-2974.50.1.17","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.17","url":null,"abstract":"This study was invested to investigate the effects of a treatment method that can apply the theory of neurorehabilitation for rehabilitation treatment of stroke patients on spasticity, balance ability, and walking ability. In this study, 30 people diagnosed by a rehabilitation medicine specialist were divided into experimental group A and experimental group B through a random assignment method. Experimental group A received extracorporeal shock wave therapy on the paralyzed lower extremity after proprioceptive neuromuscular facilitation treatment, and experimental group B received non-gravity treadmill training after proprioceptive neuromuscular facilitation treatment. All treatments were performed 3 times a week for 6 weeks, and pre- and post-evaluation were conducted. Spasticity, gait speed, dynamic balance ability, and ankle angle were measured to evaluate the treatment effect. In the results of the study, the decrease in spasticity was statistically significantly higher in experimental group A than in experimental group B, and the improvement in walking speed and dynamic balance ability was statistically significantly higher in experimental group B than in experimental group A. In addition, the change in ankle angle was greater in experimental group A than in experimental group B. In conclusion, various treatment methods should be applied simultaneously to improve the quality of life and quickly return to society in stroke patients.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42001249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.9
Ray-Wat Sirinikorn, T. Khamharnpol, C. Sakphisutthikul
This study aimed to understand the perception toward endemic preparedness, adoption of the HBM seeks to improve the level of response of Udon Thani people toward governmental messages regarding transforming the Pandemic into an Endemic. To fulfill the study’s aim, confidence toward various governmental activities and control measures. A cross-sectional survey was conducted among 120 participants across the Udon Thani Province using questionnaires implemented through Google Forms. The results were explained using descriptive and binary logistic regression analysis. Among the 120 participants, 97 (80.83%) were aware of COVID-19, and 88 (73.33%) had good knowledge. The behavioral change was observed in 97 (80.83%), and variables in the health belief model showed a significant association with the behavioral change. Most participants living across Udon Thani approached the COVID-19 endemic similarly, irrespective of age, education, or relation to the healthcare field. Perceptions of the community as explained by the health belief model were greatly influenced by the primary healthcare approach by the government and for the subsequent behavioral change.
{"title":"Perception of and Preparedness for the COVID-19 Endemic in the Udon Thani Province","authors":"Ray-Wat Sirinikorn, T. Khamharnpol, C. Sakphisutthikul","doi":"10.55463/issn.1674-2974.50.1.9","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.9","url":null,"abstract":"This study aimed to understand the perception toward endemic preparedness, adoption of the HBM seeks to improve the level of response of Udon Thani people toward governmental messages regarding transforming the Pandemic into an Endemic. To fulfill the study’s aim, confidence toward various governmental activities and control measures. A cross-sectional survey was conducted among 120 participants across the Udon Thani Province using questionnaires implemented through Google Forms. The results were explained using descriptive and binary logistic regression analysis. Among the 120 participants, 97 (80.83%) were aware of COVID-19, and 88 (73.33%) had good knowledge. The behavioral change was observed in 97 (80.83%), and variables in the health belief model showed a significant association with the behavioral change. Most participants living across Udon Thani approached the COVID-19 endemic similarly, irrespective of age, education, or relation to the healthcare field. Perceptions of the community as explained by the health belief model were greatly influenced by the primary healthcare approach by the government and for the subsequent behavioral change.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41797279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.16
F. Agustriani, I. Iskandar, M. Yazid, Fauziyah
An ecosystem services valuation could provide significant improvements for the policy maker to monitor the mangrove ecosystem changes in coastal ecosystems. Therefore, this study aimed to measure the value of ecosystem service in Sembilang National Park (NSP), Banyuasin District, South Sumatra, Indonesia. Data collection used questionnaires and in-depth interviews with the target respondents being fishermen, farmers, and stakeholders who live in the mangrove ecosystem area. The total economic value (TEV) was used as an approach for calculating the various values of the mangrove services. Several methods have been developed to estimate the ecosystem services value. In this study, the market price method, benefits transfer method, replacement method, and travel cost method were applied to estimate the benefit value for provisioning, regulating, supporting, and cultural services. The result showed that the TEV of mangrove ecosystem services with an area of 88,556 ha was IDR 6,961,126,186,194 year-1 (US$ 467,974,555.06 year-1) or IDR 78,607,444 ha-1year-1 (US$ 5,284.5 ha-1year-1). The annual benefit values for provisioning, regulating, supporting, and cultural services were IDR 267,301,712,200, IDR 6,401,520,094,447, IDR 292,120,962,048, and IDR 183,417,500, respectively. The benefit value of regulating services (coastline protection and carbon sequestration) dominated the TEV of mangrove ecosystems in the SNP. To avoid the lost value of these mangrove services, conservation and restoration should receive a high priority in mangrove management and planning in the future. These research results could be used as baseline data for local governments in managing mangrove ecosystems through the establishment of a mangrove working group in South Sumatra Province. Therefore, the novelty of this research resided in the first economic valuation in the SNP using the TEV approach, as illustrated.
{"title":"Economic Valuation of Mangrove Ecosystem Services in Sembilang National Park of South Sumatra, Indonesia","authors":"F. Agustriani, I. Iskandar, M. Yazid, Fauziyah","doi":"10.55463/issn.1674-2974.50.1.16","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.16","url":null,"abstract":"An ecosystem services valuation could provide significant improvements for the policy maker to monitor the mangrove ecosystem changes in coastal ecosystems. Therefore, this study aimed to measure the value of ecosystem service in Sembilang National Park (NSP), Banyuasin District, South Sumatra, Indonesia. Data collection used questionnaires and in-depth interviews with the target respondents being fishermen, farmers, and stakeholders who live in the mangrove ecosystem area. The total economic value (TEV) was used as an approach for calculating the various values of the mangrove services. Several methods have been developed to estimate the ecosystem services value. In this study, the market price method, benefits transfer method, replacement method, and travel cost method were applied to estimate the benefit value for provisioning, regulating, supporting, and cultural services. The result showed that the TEV of mangrove ecosystem services with an area of 88,556 ha was IDR 6,961,126,186,194 year-1 (US$ 467,974,555.06 year-1) or IDR 78,607,444 ha-1year-1 (US$ 5,284.5 ha-1year-1). The annual benefit values for provisioning, regulating, supporting, and cultural services were IDR 267,301,712,200, IDR 6,401,520,094,447, IDR 292,120,962,048, and IDR 183,417,500, respectively. The benefit value of regulating services (coastline protection and carbon sequestration) dominated the TEV of mangrove ecosystems in the SNP. To avoid the lost value of these mangrove services, conservation and restoration should receive a high priority in mangrove management and planning in the future. These research results could be used as baseline data for local governments in managing mangrove ecosystems through the establishment of a mangrove working group in South Sumatra Province. Therefore, the novelty of this research resided in the first economic valuation in the SNP using the TEV approach, as illustrated.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45014362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.20
A. Bedan, T. Abbas, Emad Hussein
Shell thickness and infill density are key parameters for determining mechanical stability of a printed part when subjected to stress. This study aimed to establish models for predicting responses, specifically compressive strength, relative strength, and weight, and to analyze the interactive effects of both shell thickness and infill density on ABS prints, which were evaluated by conducting compression tests. For this purpose, the interactive effects of different shell thicknesses (0.4, 0.8, 1.2, 1.6, and 2.0 mm) and different infill densities (0%, 25%, 50%, 75%, and 100%) on the considered response variables, namely, compressive strength, relative strength, and material consumption of ABS prints were investigated. According to the results of the experiments, a specimen printed from ABS with a 75% infill density and a shell thickness of 2 mm has the highest relative compressive stress (1645 N/g). The evaluation of the effectiveness of the proposed prediction models was confirmed by comparing the measured data with the predicted data, which showed that the quadratic fit models presented in this study are suitable for all considered response variables. The model fits the data well, with a maximum error of 6.2%. By estimating the compressive strength, relative strength, and material consumption in relation to process parameters before manufacturing the FDM parts, the developed prediction models will assist practitioners in reducing the number of experimental works, resulting in material savings, reduced printing time, and reduced energy consumption.
{"title":"Prediction and Investigation of the Interactive Impact of Shell Thickness and Infill Density on the Mechanical Properties, and the Mass of ABS Prints","authors":"A. Bedan, T. Abbas, Emad Hussein","doi":"10.55463/issn.1674-2974.50.1.20","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.20","url":null,"abstract":"Shell thickness and infill density are key parameters for determining mechanical stability of a printed part when subjected to stress. This study aimed to establish models for predicting responses, specifically compressive strength, relative strength, and weight, and to analyze the interactive effects of both shell thickness and infill density on ABS prints, which were evaluated by conducting compression tests. For this purpose, the interactive effects of different shell thicknesses (0.4, 0.8, 1.2, 1.6, and 2.0 mm) and different infill densities (0%, 25%, 50%, 75%, and 100%) on the considered response variables, namely, compressive strength, relative strength, and material consumption of ABS prints were investigated. According to the results of the experiments, a specimen printed from ABS with a 75% infill density and a shell thickness of 2 mm has the highest relative compressive stress (1645 N/g). The evaluation of the effectiveness of the proposed prediction models was confirmed by comparing the measured data with the predicted data, which showed that the quadratic fit models presented in this study are suitable for all considered response variables. The model fits the data well, with a maximum error of 6.2%. By estimating the compressive strength, relative strength, and material consumption in relation to process parameters before manufacturing the FDM parts, the developed prediction models will assist practitioners in reducing the number of experimental works, resulting in material savings, reduced printing time, and reduced energy consumption.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43953153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.55463/issn.1674-2974.50.1.2
R. N. Ismail, Yerizon, A. Fauzan
The learning differences before, during, and after the COVID-19 pandemic are very significant regarding the perceptions of offline education, where activeness in class activities is found to be excellent. These needs emphasize the positive effects of the learning method on the challenges of Indonesian education during the digital era. This study aims to evaluate the students' perception of the digital learning system from various phenomenal aspects, using the LMS Santiang. The method used in this research is descriptive qualitative and quantitative research. The informants or subjects of this study were 100 students were randomly selected as samples from class VIII Junior High Schools 7, 8, 12, and 25 Padang. The quantitative and qualitative data obtained from online Google-form questionnaires and WhatsApp interviews were also descriptively analyzed, respectively. According to the analysis of the questionnaire data, source and method triangulation techniques were analytically used. The findings showed that the students' perceptions of the digital learning system were quite good, regarding the use of the LMS Santiang with a percentage ≥ 70%. This analysis also exhibited the following results: (1) 75% of the students understood the LMS Santiang approach (75%); (2) 82% of them needed other learning resources or teaching materials; (3) 70% also demanded to use e-learning platforms; (4) 88% of the students needed e-learning in the digital era; (5) 73% of them were satisfied using LMS. This article is a novelty in developing a digital learning system using LMS Santiang post COVID-19.
{"title":"Students’ Perception of the Digital Learning System for Junior High Schools in Padang, Indonesia","authors":"R. N. Ismail, Yerizon, A. Fauzan","doi":"10.55463/issn.1674-2974.50.1.2","DOIUrl":"https://doi.org/10.55463/issn.1674-2974.50.1.2","url":null,"abstract":"The learning differences before, during, and after the COVID-19 pandemic are very significant regarding the perceptions of offline education, where activeness in class activities is found to be excellent. These needs emphasize the positive effects of the learning method on the challenges of Indonesian education during the digital era. This study aims to evaluate the students' perception of the digital learning system from various phenomenal aspects, using the LMS Santiang. The method used in this research is descriptive qualitative and quantitative research. The informants or subjects of this study were 100 students were randomly selected as samples from class VIII Junior High Schools 7, 8, 12, and 25 Padang. The quantitative and qualitative data obtained from online Google-form questionnaires and WhatsApp interviews were also descriptively analyzed, respectively. According to the analysis of the questionnaire data, source and method triangulation techniques were analytically used. The findings showed that the students' perceptions of the digital learning system were quite good, regarding the use of the LMS Santiang with a percentage ≥ 70%. This analysis also exhibited the following results: (1) 75% of the students understood the LMS Santiang approach (75%); (2) 82% of them needed other learning resources or teaching materials; (3) 70% also demanded to use e-learning platforms; (4) 88% of the students needed e-learning in the digital era; (5) 73% of them were satisfied using LMS. This article is a novelty in developing a digital learning system using LMS Santiang post COVID-19.","PeriodicalId":15926,"journal":{"name":"Journal of Hunan University Natural Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47311585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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