Publications by authors named "Zulkarnain"

The oil palm industry is a strategic and leading sector of agriculture that is developing in Indonesia. Riau is a province in this country that has quite large natural resources in the plantation with the largest contribution being oil palm. This study aims to determine the form of economic transformation based on superior commodities through the development of a sustainable palm oil industry.

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Unlabelled: The study aimed to evaluate the longitudinal impact of ISTIFAR programme (Islamic-Based Training for Family Resilience) to the family state of coping, resilience and disaster preparedness on longitudinal observation. A quasi-experimental design was employed with pre- and post-test intervention group only. The sample size was 63 families that survived the earthquake, which sampled using purposive sampling.

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Introduction: Magnetic resonance imaging (MRI) provides excellent soft tissue contrast for visualizing of deep brain stimulation (DBS) targets, allowing validation of the electrode placement, and assessing complications such as microhemorrhage and edema. However, the presence of the electrodes can introduce challenges such as radiofrequency (RF) induced current artifacts and excessive heating of the electrode contacts. Additionally, extended procedure times are also considered a disadvantage when using MRI as an intraoperative imaging modality following DBS electrode placement.

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Augmented Virtuality (AV) is a concept that merges components of Augmented Reality (AR) and Virtual Reality (VR), incorporating real elements into a virtual environment. This review analyses the influence of AV technology on sensory science and consumer behaviour, with the potential to improve product evaluation through sensory analysis. The objective is to develop immersive sensory environments that closely resemble real-world scenarios, offering accurate insights into consumer perceptions and preferences.

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Infertility rates have risen significantly, one of which is due to monosodium glutamate (MSG) consumption. Recent studies have shown that flavonoids in black garlic () act as antioxidants. The aim of this study was to assess the effect of black garlic extract (BGE) on gonadosomatic index, follicle-stimulating hormone (FSH) levels, and spermatozoa quality in rats exposed to MSG.

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Natural products encompass a diverse range of compounds with high impact applications in consumer care, agriculture and most notably, therapeutics. However, despite the expansive chemical repertoire indicated in genomic information of microbes, only a small subset can be obtained under laboratory conditions. To increase accessible chemical space and realize Nature's full chemical potential, a multi-pronged genetic- and cultivation-based strategy has been employed to activate and upregulate natural product biosyntheses in native and heterologous strains.

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In the past few years, design of mechanical metamaterials has been empowered by computational tools that have allowed the community to overcome limitations of human intuition. By leveraging efficient optimization algorithms and computational physics models, it is now possible to explore vast design spaces, achieving new material functionalities with unprecedented performance. Here, we present our viewpoint on the state of the art of computational metamaterials design, discussing recent advances in topology optimization and machine learning design with respect to challenges in additive manufacturing.

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Introduction: Hyperuricaemia is common in essential hypertension with varying results in different populations. This study sought to ascertain the association between serum uric acid levels and essential hypertension in Hospital Universiti Sains Malaysia (HUSM).

Materials And Methods: A case-control study design involving 132 subjects (88 subjects of hypertension patients for case group and 44 subjects for control group) aged 18 to 40 years old of both genders was conducted at HUSM primary care clinic and physician clinic from May 2020 to May 2021.

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Background: Indonesia has the second highest tuberculosis (TB) cases globally. This study aimed to determine the sociodemographic factors associated with TB and rifampicin-resistant tuberculosis (RR-TB) cases among presumptive pulmonary TB patients in Aceh Referral Hospital. A retrospective cross-sectional study.

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Feasible diagnostic assays are required to detect new tuberculosis (TB) cases and monitor treatment. This study aimed to evaluate evidence on tryptophan (Trp) and its metabolites as proposed biomarkers for TB. Through specific keyword searches, we identified 170 relevant literature sources and included seven publications (from 2013 to 2023).

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Article Synopsis
  • Blount disease causes deformities in the knees, including bowing and misalignment, and its treatment remains debated despite various approaches.
  • A case of a nine-year-old girl with significant knee deformities was successfully treated using the Ilizarov external fixator, resulting in noticeable clinical improvement.
  • The Ilizarov frame is recommended for its ability to provide precise corrections while minimizing risks compared to alternative techniques like physeal distraction, leading to positive treatment outcomes without significant complications.
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Background: The purpose of this study was to develop the Hospital-Stakeholder Collaboration (HSC) Tool and Hospital Performance Factor (HPF) Tool to explore stakeholder perception and value for hospital service improvement.

Methods: This exploratory mixed-method study involved three steps: initial tool development (Step 1), validity testing (Step 2), and module development (Step 3). In Step 1, qualitative data collection through literature reviews, focus group discussions, and interviews with hospital management experts led to the creation of the preliminary tools.

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Objectives: Indonesia have several herbs empirically used as galactagogue. However there are limited clinical evidence regarding the efficacy and safety of this herbs especially poly-herb. The aim of this study was to assess the efficacy and safety of polyherbal galactagogue (PHG) consist of katuk leaves, torbangun leaves and papaya leaves compared to commercial galactagogue capsules (CGC) that contain a single plant extract, katuk leaves.

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The accuracy of diagnostic results in clinical laboratory testing is paramount for informed healthcare decisions and effective patient care. While the focus has traditionally been on the analytical phase, attention has shifted towards optimizing the preanalytical phase due to its significant contribution to total laboratory errors. This review highlights preanalytical errors, their sources, and control measures to improve the quality of laboratory testing.

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The pillars of comprehensive pulmonary rehabilitation program for chronic obstructive pulmonary disease (COPD) patients include physical exercise and good nutrition. The aim of this study was to evaluate the efficacy of pulmonary rehabilitation, which included physical exercise and chicken egg white supplementation, on the quality of life (QoL) and functional capacity among patients with stable COPD. The COPD patients were enrolled prospectively in this quasi-experimental study and completed a 12-week smartphone-guided home-based physical exercise program that comprised strength and resistance training three times per week for 30 minutes each session.

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Aging is a natural skin process that occurs due to intrinsic and extrinsic factors, such as excessive exposure to ultraviolet light (photoaging). The mechanism of damage involves the production of excess free radicals that trigger oxidative stress in the skin. Determining the natural products that have high antioxidant activities as antiaging is important.

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Lack of physical exercise and inadequate nutritional intake in chronic obstructive pulmonary disease (COPD) patients could lead to low muscle mass and function, which causes reduced respiratory function, increased incidence of exacerbations, exercise intolerance, increased visits to health facilities, and low health status. Therefore, physical exercise and good nutritional intake are the main foundations of a comprehensive pulmonary rehabilitation program for COPD patients. The aim of the study was to determine the effect of chicken egg white supplementation on dyspnea degree and the incidence of exacerbations in stable COPD patients who perform physical exercise independently at home.

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Sensory booths enhanced with VR technology have displayed promising potential for improving sensory evaluation, perception research, and educational experiences. However, there remains an insufficient of data on VR's utilization in sensory science. In our research, we designed a virtual sensory booth (SB) utilizing Virtual Reality (VR) to complement sensory analysis and foster applications in the field of sensory science.

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Sensory analysis is crucial for optimizing experiences in various fields, including food, cosmetics, and product design. Traditional methods can be inefficient and imprecise. This study introduces a novel approach by blending Virtual Reality (VR) technology with scent identification techniques.

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Virtual reality (VR) technology has gained significant attention in various fields, including education for health professionals, sensory science, psychology, and consumer research. The first aim of the paper is to explore the self-assessed experience of emotional involvement in sensory analysis performed in VR. The Positive and Negative Affect Schedule (PANAS) is a widely used self-report measure that assesses positive and negative affective states.

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As technology advances in the field of food sciences, the sensory experience of food consumption remains complex and influenced by various factors. Traditional consumer testing, often conducted in isolated booth environments, presents challenges in terms of construct validity and user engagement for perception formation. The growing accessibility and sophistication of virtual reality (VR) technology offer a promising avenue for research.

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Natural products possess significant therapeutic potential but remain underutilized despite advances in genomics and bioinformatics. While there are approaches to activate and upregulate natural product biosynthesis in both native and heterologous microbial strains, a comprehensive strategy to elicit production of natural products as well as a generalizable and efficient method to interrogate diverse native strains collection, remains lacking. Here, we explore a flexible and robust integrase-mediated multi-pronged activation approach to reliably perturb and globally trigger antibiotics production in actinobacteria.

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Background: Heating around deep brain stimulation (DBS) in magnetic resonance imaging (MRI) occurs when the time-varying electromagnetic (EM) fields induce currents in the electrodes which can generate heat and potentially cause tissue damage. Predicting the heating around the electrode contacts is important to ensure the safety of patients with DBS implants undergoing an MRI scan. We previously proposed a workflow to predict heating around DBS contacts and introduced a parameter, equivalent transimpedance, that is independent of electrode trajectories, termination, and radiofrequency (RF) excitations.

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Background: This study investigated the association between elevated risk of developing diabetes and impaired health-related quality of life (HRQoL) in the Indonesian population.

Methods: A cross-sectional study was conducted on 1,336 Indonesians from the general population who had no previous diagnosis of diabetes. Utility score to represent HRQoL was measured using the EuroQol 5-dimension, while the risk for developing diabetes was determined using the Finnish Diabetes Risk Score (FINDRISC) instrument.

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Magnesium (Mg) is a predominantly intracellular cation that plays significant roles in various enzymatic, membrane, and structural body functions. As a calcium (Ca) antagonist, it is imperative for numerous neuromuscular activities. The imbalance of body Mg  concentration leads to clinical manifestations ranging from asymptomatic to severe life-threatening complications.

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