Parental perspective of behavior management techniques in dental treatment for their pre-school children / Ilham Wan Mokhtar … [et al.]

To evaluate parents' knowledge, acceptance and perceptions towards passive restraint, active restraint, parents separation, voice-control, tell-show-do, conscious sedation, and general anesthesia on their child during dental treatment as one of behavior management techniques in dentistry. Methods : A 32–items questionnaires constructed with seven set videos of selected behavior management techniques were developed and validated. Data were analyzed using SPSS version 22. Results : Fifty-five parents recruited. The sample consists of parents with children aged 3 – 5 years old. 98% of the parents are married and 2% are single parent. Most of the parents are degree holder. 42% of parents stated that they assist their children in tooth brushing and imply good oral home care practice. More than half of the parents have a substantial awareness of oral care as 60% of parents bring their children to the dentist. Tell-Show-Do (TSD) is the most accepted technique by the parents in dental treatment. The least accepted is General Anaesthesia. Conclusion : The parental knowledge and perception of suggested behavior management techniques are above average. Proper explanation and clarification of the technique will improve acceptance and lessen the parents' concern about their children dental treatment

Development of User-Centered Smart Child Seat for NCAP Requirements Via IoT Platform

Recently, the 'forgotten baby syndrome' term has become a regular headline in the newspaper. The syndrome is referred to a scenario of a child dying from a heat stroke after being accidentally left in a car. Herein, the Smart Child Seat (SCS) has been designed with a real-time monitoring-based system that consists of temperature, humidity, heart rate, sound, ultrasonic and a carbon monoxide sensor to monitor and measure the condition of the child left inside the car. The system's requirement is designed based on the market survey to provide direction for the optimized SCS system. The system will send the notification via the Blynk IoT application to the parents if there is an abnormal reading from the sensor

NANOFLUID AS COOLANT IN AUTOMOTIVE COOLING SYSTEM–HEAT TRANSFER CHARACTERISTICS OF CAR RADIATOR USING CU-BASED NANOFLUID

Nanofluid is a potential fluid with enhanced thermal physical properties as compared to conventional fluid. The conventional fluids such as water and ethylene glycol acted as coolants in automotive cooling system could show superior properties through dispersion of nanoparticles. The nanoparticles are either metal, non-metal or carbon nanotube (CNT) is in nano-size between 1-100 nm. This study focused on heat transfer characteristics of Cu/water Nanofluid in an automotive radiator by analyzing the thermal physical properties of the coolant; thermal conductivity () and heat transfer coefficient (). The mixture of solid nanoparticles and coolant showed that the thermal properties of the coolant were increasing with copper (Cu) nanoparticle volume fraction. By adding 10 % of Nanoparticle suspension, the heat transfer coefficient of the nanofluid was increased up to 26000 W.m-2K-1 with 92 % of percentage enhancement. Consequently, it also enhanced the heat transfer rate in the cooling system. The results showed good indicator for automotive industry to design an eco-car that sustain the energy and minimizing the environmental impact

Numerical Analysis on the Effects of Cavity Geometry with Heat towards Contaminant Removal

Contaminants are recently discovered at the joint of large piping system and causing defect to industrial product. A computational analysis can be used as a solution of the hydrodynamic contaminant removal without any modification needed. In this paper, the effect of heat is introduced to analyze the heat transfer and flow field in a channel with cavity heated at the bottom sides coupled with different shape of cavity. The cavity shape used comes with three shapes i.e. square, triangle and semicircle. The process of fluid dynamic in a cavity is modeled via numerical solution of the Navier–Stokes equations using Cubic Interpolated Profile (CIP) method. By using the simulation of hydrodynamic contaminant removal, the flow of streamlines and vortices pattern was investigated in the cavities. In order to remove all of the contaminant, hydrodynamic need to take part in this simulation which is flow from the inlet of the channel and create vortices to remove it from the cavities. The result shows that the percentage of contaminant removal is higher for semicircle cavity with higher Grashof number. The result also indicates that vortices formation is highly dependent on the cavity geometry and creates a buoyancy effect

Priority Factor Influencing Public Interest In Owning Vehicle With AEB System

The Autonomous Emergency Brake (AEB) is a part of autonomous vehicle technologies and the technology was developed to reduce human errors that lead to a road accident. This survey investigates the priority factor influencing the public in acquiring vehicles with the AEB system. In this study, the Analytic Hierarchy Process (AHP) framework was used to determine the public’s rating of importance of the availability of the AEB system in their vehicles. Cronbach’s alpha was used to check for reliability of survey items. With a score of 0.8, it suggested that the items had relatively high internal consistency. The results show that the top factors that influence public interest in having vehicle with AEB are the reduction of the severity of injury and crashes

Extraction and characterization of bioactive fish by-product collagen as promising for potential wound healing agent in pharmaceutical applications: Current trend and future perspective

Collagen is a structural protein naturally found in mammals. Vertebrates and other connective tissues comprise about 30% of an animal’s overall protein. Collagen is used in a variety of applications including cosmetics, biomedical, biomaterials, food, and pharmaceuticals. The use of marine-based collagen as a substitute source is rapidly increasing due to its unique properties, which include the absence of religious restrictions, a low molecular weight, no risk of disease transmission, biocompatibility, and ease of absorption by the body system. This review discusses recent research on collagen extraction from marine-based raw material, specifically fish by-products. Furthermore, pretreatment on various sources of fish materials, followed by extraction methods, was described. The extraction procedures for acid soluble collagen (ASC) and pepsin soluble collagen (PSC) for fish collagen isolation are specifically discussed and compared. As a result, the efficacy of collagen yield was also demonstrated. The recent trend of extracting fish collagen from marine biomaterials has been summarized, with the potential to be exploited as a wound healing agent in pharmaceutical applications. Furthermore, background information on collagen and characterization techniques primarily related to the composition, properties, and structure of fish collagen are discussed

Effect Of Functional Endoscopic Sinus Surgery To The Flow Behavior In Nasal During Resting Breathing Condition

Functional endoscopic sinus surgery is a surgery to remove uncinate process in order to restore sufficient sinus ventilation and drainage in nasal. However, there were a few cases wit11 side effects such as facial pain, reduction in sense of smell and sinusitis reoccurrence of infection. In this study, the effect of uncinate process removal is investigated. Images of the model were done through computational technique and then the flow was simulated to predict the effect of the removal. Inhalation processes with resting breathing condition were modeled. The results &how that smooth flow was observed at nasal area which indicates successful surgical process. However for post FESS model the result shows that the possibilities of sinusitis reoccurrence of infection were high. Finally, velocity profile in the olfactory area show non-favorabIe flow condition for effective smell senses

Haematococcus pluvialis as a potential source of Astaxanthin with diverse applications in industrial sectors: current research and future directions

Haematococcus pluvialis, a green microalga, appears to be a rich source of valuable bioactive compounds, such as astaxanthin, carotenoids, proteins, lutein, and fatty acids (FAs). Astaxanthin has a variety of health benefits and is used in the nutraceutical and pharmaceutical industries. Astaxanthin, for example, preserves the redox state and functional integrity of mitochondria and shows advantages despite a low dietary intake. Because of its antioxidant capacity, astaxanthin has recently piqued the interest of researchers due to its potential pharmacological effects, which include anti-diabetic, anti-inflammatory, and antioxidant activities, as well as neuro-, cardiovascular-, ocular, and skin-protective properties. Astaxanthin is a popular nutritional ingredient and a significant component in animal and aquaculture feed. Extensive studies over the last two decades have established the mechanism by which persistent oxidative stress leads to chronic inflammation, which then mediates the majority of serious diseases. This mini-review provides an overview of contemporary research that makes use of the astaxanthin pigment. This mini-review provides insight into the potential of H. pluvialis as a potent antioxidant in the industry, as well as the broad range of applications for astaxanthin molecules as a potent antioxidant in the industrial sector

Bioprocess Strategy of Haematococcus lacustris for Biomass and Astaxanthin Production Keys to Commercialization: Perspective and Future Direction

Haematococcus lacustris (formerly called Haematococcus pluvialis) is regarded as the most promising microalgae for the production of natural astaxanthin, which is secondary metabolism used as a dietary supplement, also for cosmetic applications, due to its high antioxidant activity. Astaxanthin has a wide range of biological activities and high economic potential, and currently dominates the market in its synthetic form. Furthermore, because of the difficulty of bioprocess and the high cost of cultivation, astaxanthin extracted from this microalga is still expensive due to its low biomass and pigment productivities. Large-scale biomass production in biotechnological production necessitates the processing of a large number of cultures as well as the use of both indoor and outdoor systems, such as open pond raceway systems and photo-bioreactors (PBR). The photo-bioreactors systems are suitable for mass production because growth conditions can be controlled, and the risk of contamination can be reduced to a certain extent and under specific culture parameters. This review discusses current technologies being developed to improve cultivation and operation efficiency and profitability, as well as the effect of parameter factors associated with H. lacustris cultivation on biomass and astaxanthin bioproduction, and even strategies for increasing bioproduction and market potential for H. lacustris astaxanthin