Publications by authors named "Rizal Muhammad"

The adoption of pultruded glass fibre-reinforced polymer (pGFRP) composites as a substitute for traditional wooden cross-arms in high transmission towers represents a relatively novel approach. These materials were selected for their high strength-to-weight ratio and lightweight properties. Despite various studies focusing on structures improvement, there still have a significant gap in understanding the deformation characteristics of full-scale cross-arms under actual operational loads.

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This paper investigates the impact of a dependent coverage age-eligibility rule on young adults' health and healthcare utilisation under Indonesia's National Health Insurance (NHI) program. Employing a regression discontinuity design, analysis of the NHI administrative data documents a significant 14.6 to 20.

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Background: Cervical cancer occurs 80% in developing country including Indonesia and take place in the first rank of incidence rate and third rank in mortality rate in Asian Pacific. Natural history of cervical cancer gives a potential to get accurate screening method. Cervical cancer screening m in Indonesia use VIA and Pap smear method for women in age range 30 to 50 years old.

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Objective: To estimate hospital services utilisation and cost among the Indonesian population enrolled in the National Health Insurance (NHI) program before and after COVID-19 hospital treatment.

Methods: 28,159 Indonesian NHI enrolees treated with laboratory-confirmed COVID-19 in hospitals between May and August 2020 were compared to 8,995 individuals never diagnosed with COVID-19 in 2020. A difference-in-difference approach is used to contrast the monthly all-cause utilisation rate and total claims of hospital services between these two groups.

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Background: Gingivectomy has been the preferred method since the findings in 1884. It evolved from "blind" subgingival scaling to "the excision of the soft tissue". The use of these techniques is no longer mandatory in clinical situations; therefore, researchers have searched for numerous publications that have been registered regarding gingivectomy.

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Non-communicable diseases (NCDs) disproportionately affect people in low- and middle-income countries (LMICs), yet context-specific evidence on policies that impact NCD risk factors is lacking. We estimate the impact of a massive Indonesian primary school expansion program in the 1970s on NCD risk factors in later life using data from two surveys with very large sample sizes. We find that in non-Java regions of Indonesia, the program led to significant increases in the likelihood of overweight and high waist circumference among women, but not among men.

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Objectives: Despite the use of common irrigating solution with antimicrobial properties, failed root canal treatment remains a significant problem in endodontics. In the present study, we examined the efficacy of reuterin derived from probiotic bacteria, on the biofilms of major endodontic pathogens using ex vivo model of root canal infections.

Methods: Biofilms of major endodontic pathogens namely , , and were formed on root canals of 60 human premolar tooth samples accordingly a standard protocol.

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The main focus of this work was the design and development of a cross-beam force transducer for use in the construction of a tri-axial dynamometer. This dynamometer would be able to measure the cutting force along all three axes simultaneously during turning operations. The force transducer was built on the concept of the Maltese cross-beam, but it had been modified and improved so that it had a higher sensitivity and reduced the amount of interference error or cross-talk error that it produced.

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Objective: This prospective clinical study aim was to analyze the effect of the probiotic Lactobacillus reuteri Prodentis lozenges on salivary microbiome of subjects wearing fixed orthodontic appliances.

Methods: Saliva samples were collected prior to consumption and 14th-day post probiotic lozenges consumption (n=40, age 18-23). Oral hygiene index-score (OHI-S) and papilla bleeding index (PBI) were recorded.

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Article Synopsis
  • Vasoplegia is a condition characterized by low blood pressure and resistance despite normal or high blood flow, often occurring after heart surgery and associated with significant health risks.
  • It is linked to systemic inflammatory responses, with factors like nitric oxide production and vasopressin deficiency playing key roles, particularly after cardiopulmonary bypass.
  • Treatment typically involves vasopressors, with traditional options being catecholamines, but recent studies suggest alternatives like vasopressin, methylene blue, and angiotensin II may also improve symptoms, though their long-term effects on patients are still uncertain.
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Increasing evidence has shown an association between periodontitis and cognitive impairment. Subgingival microbiota play a great role in periodontitis pathogenesis. However, the correlation between the subgingival microbiome and cognitive impairment remains unclear.

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Background: Aortic dissection (AD) is a relatively rare but dreadful illness, often accompanied by severe, sharp (or 'tearing') back pain or anterior chest pain, as well as acute hemodynamic compromise. Painless dissection has also been reported in rare cases. Echocardiography has become the most commonly used imaging test for evaluating cardiovascular disease and, thus, plays an important role in aortic disease diagnosis and follow-up.

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Background: Endometriosis is closely associated with delayed diagnosis due to the lack of a definitive and sensitive noninvasive approach. The use of calprotectin in inflammatory process has been demonstrated in various inflammatory diseases. Calprotectin has a significant correlation with high-sensitivity C-reactive protein (hs-CRP) and could be used as an inflammatory marker.

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Background: Management for male infertility can be difficult for some cases. Surgical intervention has long been thought as the last resort to help married couples to conceive. The current guideline recommends testicular sperm extraction with micro-surgery technique (microTESE) in severe cases of male infertility.

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Quantitative proteomic workflow based on mass spectrometry (MS) is recently developed by the researchers to screen for biomarkers in periodontal diseases comprising periodontitis. Periodontitis is known for chronic inflammatory disease characterized by progressive destruction of the tooth-supporting apparatus, yet has a lack of clear pathobiology based on a discrepancy between specified categories and diagnostic vagueness. The objective of this review was to outlined the accessible information related to proteomics studies on periodontitis.

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In spite of the enormous economic progress and development witnessed in Indonesia in the last few decades, still more than 30% of Indonesian children under the age of five suffer from stunting, or low height for age. This concern is exacerbated by the fact that stunting remains more concentrated among the poorer households, leading to further intergenerational transmission of poverty and ill health. We examine recent trends in the evolution of the prevalence of childhood stunting and severe stunting, its socioeconomic inequality and the factors that appear to have contributed to these developments.

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