... sus territorios, entre ellas a la población isleña-raizal del Archipiélago de San Andrés, Providencia y Santa Catalina. Este reconocimiento ha ocasionado que la población raizal reelabore y reinvente los discursos sobre su identidad, ... discursos y elementos que construyen la identidad isleña-raizal desde las propias representaciones de la población, con ...
Tópico(s): International Relations in Latin America
2008 - Universidad Icesi | Revista CS
María Anaya Romero, Sameh Kotb Abd‐Elmabod, Miriam Muñoz‐Rojas, Gianni Castellano, Carlos J. Ceacero, Susana Prado Alvarez, Miguel Ángel Tarazona Méndez, Diego de la Rosa,
... to achieve sustainability. Five models Terraza , Cervatana , Sierra , Raizal , and Pantanal included in the Mediterranean Land Evaluation ... presence/absence of 22 typical Mediterranean forest species. Raizal and Pantanal models predict soil erosion vulnerability, contamination, ...
Tópico(s): Soil Carbon and Nitrogen Dynamics
2015 - Wiley | Land Degradation and Development
... un recorrido histórico-cultural entorno a la comunidad raizal del Archipiélago de San Andrés, Providencia y Santa ...
Tópico(s): Cuban History and Society
2021 - National Association of Postgraduate Research in Education | Revista Brasileira de Educação
Mishel Estefany Castillo Palacios,
... un motivo contundente de movilización entre la población raizal.
Tópico(s): International Relations in Latin America
2016 - | Análisis Político
... San Andrés, Providencia y Santa Catalina, la isleña-raizal, recibiera el reconocimiento jurídico como grupo étnico. Esto ... of San Andres, Providencia and Santa Catalina, the Raizal-islander, to be legally recognized as an ethnic ... something which deepened the existing conflict between local Raizals and those from the Colombian Continental Caribbean. This ... Ethnicity, Social conflict, Interethnic relations, Colombian insular Caribbean, Raizal-islanders, Continental settlers (pañas), San Andres, Providencia and ...
Tópico(s): Economic and Social Development
2015 - | REVISTA CONTROVERSIA
... que propone un reconocimiento de la población isleña-raizal del archipiélago de San Andrés, Providencia y Santa ... del proceso de etnización de la población isleña-raizal, y estudiar el surgimiento de varios conflictos entre ...
Tópico(s): International Relations in Latin America
2011 - Colombian Institute of Anthropology and History | Revista Colombiana de Antropología
... de los saberes y practicas agricolas del pueblo raizal del archipielago. Se argumenta que la produccion agricola ... and Santa Catalina (Colombia). The article analyses local Raizal people’s traditional agricultural knowledge and practices. I ... sovereignty in the archipelago. This is so because Raizal agriculture is grounded on a deep awareness of ... analise dos conhecimentos e praticas agricolas do povo raizal do arquipelago. Argumenta-se que a producao agricola ...
Tópico(s): Agricultural and Food Production Studies
2019 - Universidad Colegio Mayor de Cundinamarca | Tabula rasa
Wilhelm Londoño, Pablo Alonso González,
... and the encroaching Colombian-based tourist industry for Raizals – descendants of African slaves brought by the British ... the Spanish empire and afterwards the Colombian state, Raizals differ in many ways from the dominant Spanish- ... the waters of the Colombian islands, consequently precluding Raizals from accessing their traditional fishing resources. As a ...
Tópico(s): History and Politics in Latin America
2017 - SAGE Publishing | Race & Class
... investigacion-accion, guiada por la utopia del socialismo raizal. En la primera parte se examina en detalle ... y, finalmente, se estudia la propuesta del socialismo raizal
Tópico(s): Educational theories and practices
2012 - Saint-Petersburg University | Izquierdas
Sunday U. Azunna, Farah Nora Aznieta Abdul Aziz, Raizal S.M. Rashid, Nabilah Abu Bakar,
The global scientific research circle and government agencies face a number of serious environmental challenges, one of which is the recycling of "End of Life Tires" (ELT). An estimation of one billion tires is expected to end their useful life annually, of which only roughly 50% are recycled at the moment, with the remainder ending up in landfills. Consequently, to solve this gap in the ELT's utilization rate, it is imperative to enhance the current application and furthermore create new applications ...
Tópico(s): Concrete and Cement Materials Research
2024 - Elsevier BV | Cleaner Materials
Ali M. Onaizi, Mugahed Amran, Waiching Tang, Nour Betoush, Mohammad Alhassan, Raizal S.M. Rashid, Mohammad.Fares Yasin, Khaled H. Bayagoob, Sagheer A. Onaizi,
Tópico(s): Nuclear materials and radiation effects
2024 - Elsevier BV | Journal of Building Engineering
Mugahed Amran, Shan‐Shan Huang, Solomon Debbarma, Raizal S.M. Rashid,
Although a novel inorganic family of geopolymer concrete (GPC) is a promising building material. The need for understanding its resistance against fire at high temperatures is considered essential to ensure its long-term durability. Physical examinations of the degree of cracking, spalling, brittleness, and loss of strength in GPC upon exposure to high temperatures and during fires provide an indicator of their resilience to such conditions. The addition of recycled fibers (RFs) to GPC has been reported ...
Tópico(s): Concrete and Cement Materials Research
2022 - Elsevier BV | Construction and Building Materials
Mugahed Amran, Valery Lesovik, Aleksandr Tolstoy, Роман Федюк, Roman Rusinov, Nadezhda Rusinova, Diyar N. Qader, Kachalla Mohammed, Raizal S.M. Rashid,
Fibrous high-strength concrete by means of natural and technogenic raw materials is in demand for sustainable construction. The scientific novelty of this study lies in the expansion of the range of applied natural raw materials locally available for polymineral binders, instead of using manufactured or rare materials. This research aimed to improve the performance and properties of high-strength concrete with an improved composite binder and polypropylene fiber. The task was achieved by using a ...
Tópico(s): Innovations in Concrete and Construction Materials
2022 - Elsevier BV | Case Studies in Construction Materials
Mugahed Amran, Ali M. Onaizi, Роман Федюк, Nikolai Vatin, Raizal S.M. Rashid, Hakim S. Abdelgader, Togay Ozbakkaloglu,
Concrete is a material that is widely used in the construction market due to its availability and cost, although it is prone to fracture formation. Therefore, there has been a surge in interest in self-healing materials, particularly self-healing capabilities in green and sustainable concrete materials, with a focus on different techniques offered by dozens of researchers worldwide in the last two decades. However, it is difficult to choose the most effective approach because each research institute ...
Tópico(s): Concrete Corrosion and Durability
2022 - Multidisciplinary Digital Publishing Institute | Materials
M A H Abdullah, Raizal S.M. Rashid, Mugahed Amran, Farzad Hejazii, N.M. Azreen, Роман Федюк, Yen Lei Voo, Nikolai Vatin, Mohd Idzat Idris,
Nuclear energy offers a wide range of applications, which include power generation, X-ray imaging, and non-destructive tests, in many economic sectors. However, such applications come with the risk of harmful radiation, thereby requiring shielding to prevent harmful effects on the surrounding environment and users. Concrete has long been used as part of structures in nuclear power plants, X-ray imaging rooms, and radioactive storage. The direction of recent research is headed toward concrete's ability ...
Tópico(s): Nuclear materials and radiation effects
2022 - Multidisciplinary Digital Publishing Institute | Polymers
Mohd Basri Che Bakar, Raizal S.M. Rashid, Mugahed Amran, Mohd Saleh Jaafar, Nikolai Vatin, Роман Федюк,
Conventional reinforced concrete (RC) structures are commonly associated with the corrosion of steel reinforcement. The application of carbon fiber reinforced polymer (CFRP) bars as flexural reinforcement has become a new promising option. This paper presents a state-of-the art flexural strength on concrete beams reinforced with CFRP bars. Concrete compressive and CFRP bar tensile strain, reinforcement ratio, types of surface treatment on CFRP bar and concrete compressive strength were identified ...
Tópico(s): Innovative concrete reinforcement materials
2022 - Multidisciplinary Digital Publishing Institute | Materials
V. Jayanthi, Siva Avudaiappan, Mugahed Amran, Krishna Prakash Arunachalam, Diyar N. Qader, Manuel Chávez-Delgado, Erick I. Saavedra Flores, Raizal S.M. Rashid,
Micronized biomass silica (MBS) and ground granulated blast furnace slag (GGBS) are agro-industrial byproducts generated by incinerating of rice husk (grinding in jar mill) and blast furnaces that used produce iron, respectively. MBS accounts for 20% of the world's total paddy output of 590 million tons. These by-products (MBS and GGBS) have a high concentration of amorphous silica, which is utilized as a mineral additive in concrete. This amorphous silica interacts with hydration products, resulting ...
Tópico(s): Innovative concrete reinforcement materials
2022 - Elsevier BV | Case Studies in Construction Materials
Vijayaprabha Chakrawarthi, Brindha Dharmar, Siva Avudaiappan, Mugahed Amran, Erick Saavedra Flores, Mohammad Ayaz Alam, Роман Федюк, Nikolai Vatin, Raizal S.M. Rashid,
Concrete technology is adopted worldwide in construction due to its effectiveness, performance, and price benefits. Subsequently, it needs to be an eco-friendly, sustainable, and energy-efficient material. This is achieved by replacing or adding energy-efficient concrete materials from industries, such as ground granulated blast furnace slag, steel slag, fly ash, bottom ash, rice husk ash, etc. Likewise, copper slag is a waste material produced as molten slag from the copper industry, which can ...
Tópico(s): Innovations in Concrete and Construction Materials
2022 - Multidisciplinary Digital Publishing Institute | Materials
Diyar N. Qader, Farzad Hejazi, Raizal S.M. Rashid, Farah Nora Aznieta Abdul Aziz,
Nowadays, tunnel-form building systems are frequently implemented in the construction of various buildings due to the quick construction process. The rubber base isolator is one of the most successful and practical techniques to enhance the performance of structures against lateral loads. Although the conventional isolators are available in circular and square shapes, the anisotropic isolation system has typically been designed by employing symmetrical shaped seismic isolators that are not suitable ...
Tópico(s): Structural Response to Dynamic Loads
2021 - Elsevier BV | Structures
Mugahed Amran, Hakim S. Abdelgader, Ali M. Onaizi, Роман Федюк, Togay Ozbakkaloglu, Raizal S.M. Rashid, G. Murali,
The construction sector has embraced digitalization and industrialization to boost production, reduce material consumption, and improve workmanship. The 3D-printed concrete technology (3DPCT), more broadly recognized as the design of a 3D object via a computer-aided design (CAD) model or a digital 3D model, has accelerated considerable progress in these areas in other industries. Although 3DPCT has advanced remarkably in recent years, producing an appropriate 3D printing material that improves performance ...
Tópico(s): Magnesium Oxide Properties and Applications
2021 - Elsevier BV | Construction and Building Materials
... compromiso auténtico, los valores fundantes y el socialismo raizal. Se propone que la reflexión falsbordiana tiene como ...
Tópico(s): Social Skills and Education
2020 - University of Atlántico | Collectivus Revista de Ciencias Sociales
The article presents an epistemic reflection on the proper education of the Nasa indigenous people, north of Cauca (Colombia). It shows that, in some way, from the indigenous worldviews it is also possible to build knowledge from know-how and experiences in the territories, which is valid and legitimate. In the same way as modern Western knowledge does and, as an emancipating process for indigenous peoples. Some pillars of self-education were analyzed, highlighting its role in autonomous education ...
Tópico(s): Educational theories and practices
2020 - Editorial Universidad de Sevilla | Cuestiones Pedagógicas
N.M. Azreen, Raizal S.M. Rashid, Mugahed Amran, Yen Lei Voo, M. Haniza, M. Hairie, Rayed Alyousef, Hisham Alabduljabbar,
Minerals, for instance barite and hematite, absorb γ-rays better than silica aggregates because of their higher density. The use of these minerals as main component in ultra-high performance concretes (UHPCs) exhibit promising results and enhances the toughness of an ideal radiation absorber for nuclear facilities. However, limited information on the influence of high-density minerals on UHPC for radiation shielding is available. In this study, two UHPC mixes with hematite and barite minerals were ...
Tópico(s): Nuclear materials and radiation effects
2020 - Elsevier BV | Construction and Building Materials
Raizal S.M. Rashid, S. Mohammed Salem, N.M. Azreen, Yen Lei Voo, M. Haniza, Ahmad Azim Shukri, Mohd-Syukri Yahya,
The high density and strength of ultra-high performance concrete (UHPC) makes it suitable for radiation shielding, however, the deterioration of radiation shielding properties due to exposure to elevated temperature is a major concern. Hence this paper presents a study on the radiation shielding properties of UHPC after exposure to elevated temperature. It was found that the half-value layer and tenth value layer of both types of UHPC tested had increased by 76–82%, which was attributed to the excessive ...
Tópico(s): Concrete and Cement Materials Research
2020 - Elsevier BV | Construction and Building Materials
Ruqayyah Ismail, Raizal S.M. Rashid, Wong Chien Chan, Mohd Saleh Jaafar, Farzad Hejazi,
Partial CFRP-confinement has been used as an option beside full CFRP-confinement for strengthening structural elements. However, the sufficiency of partial CFRP-confinement has always been uncertain. Therefore, this paper presents 24 specimen cylinders (300 mm × 150 mm) strengthened with partial CFRP-confinement horizontal and helicoidal strip. The results from both modes of partial CFRP confinement with strip spacing of 60, 40, and 20 mm were compared with full confinement and unconfined specimens. ...
Tópico(s): Innovative concrete reinforcement materials
2019 - Elsevier BV | Construction and Building Materials
Mugahed Amran, Rayed Alyousef, Hisham Alabduljabbar, Fahed Alrshoudi, Raizal S.M. Rashid,
In this research paper is reported the analytical and experimental investigations on the influence of slenderness ratio on the structural performance of lightweight foam concrete composite panel (LFCCP). Six full-scale tests of LFCCP panels differing in thickness were implemented under compression load. Compression load strength, load-strain profiles, load-deflection curves, influence of slenderness ratio, deformation, cracking patterns and classic modes of failure under incremental compression loads ...
Tópico(s): Innovative concrete reinforcement materials
2019 - Elsevier BV | Case Studies in Construction Materials
Mohamed El-Zeadani, M.R. Raizal Saifulnaz, Farzad Hejazi, Mugahed Amran, Mohd Saleh Jaafar, Rayed Alyousef, Fahed Alrshoudi,
Most design codes available today for predicting the deflection of adhesively plated RC beams use a full-interaction moment-curvature approach that requires the flexural rigidity to be quantified empirically. Due to their empirical nature, these design rules can only be applied within the bounds of the tests from which they were derived. Furthermore, as these design rules follow a full-interaction analysis, the slip between the reinforcement and adjacent concrete was not considered and the method ...
Tópico(s): Structural Response to Dynamic Loads
2019 - Elsevier BV | Composite Structures
Mohamed El-Zeadani, Raizal S.M. Rashid, Mugahed Amran, Farzad Hejazi, Mohd Saleh Jaafar, Rayed Alyousef, Hisham Alabduljabbar,
Partial-interaction due to sliding between the steel bars, adhesively attached FRP plates and their bordering concrete surface, accompanied with the detachment of the FRP plates due to intermediate crack (IC) debonding make the deflection of strengthened RC beams difficult to anticipate. Previous research and design rules on determining the deflection of strengthened RC beams using FRP plates have opted for a full-interaction moment-curvature design technique where the deflection was measured by ...
Tópico(s): Structural Response to Dynamic Loads
2019 - Elsevier BV | Case Studies in Construction Materials
Mugahed Amran, Rayed Alyousef, Raizal S.M. Rashid, Hisham Alabduljabbar, Chung‐Chan Hung,
In civil and structural engineering, building structures with robust stability and durability using sustainable materials is challenging. The current technological means and materials cannot decrease weight, enlarge spans, or construct slender structures, thus inspiring the exploration for valuable composite materials. Fiber reinforced polymer (FRP) features high-strength and lightweight properties. Using FRP motivates civil engineers to strengthen existing RC structures and repair any deterioration. ...
Tópico(s): Concrete Corrosion and Durability
2018 - Elsevier BV | Structures
N.M. Azreen, Raizal S.M. Rashid, M. Haniza, Yen Lei Voo, Mugahed Amran,
Barite in Malaysia is limited; therefore, a locally available alternative source must be identified to meet the requirements of high-density concrete for radiation shielding. We selected steel fibre-reinforced ultra-high-performance concrete (UHPC) samples with different inert materials, namely, silica sand, amang and lead glass, as the study object and tested them experimentally for their mechanical properties and radiation absorption capabilities. The UHPC samples showed compressive strength values ...
Tópico(s): Nuclear materials and radiation effects
2018 - Elsevier BV | Construction and Building Materials