bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanical and Functional Property Investigation of 2-Layered Pervious Concrete
Authors: Spoorthy B.M , Chandrappa Anush K. , Sahoo Umesh C.
Published: November 2022

Background:

Pervious concrete pavements are considered one of the well accepted stormwater management strategies as per environmental protection agencies. The interconnected pore structure in the pervious concrete allows the stormwater to percolate and thus reduce the runoff.

Methods:

The laboratory and field investigations on the pervious concrete pavements have shown that the abrasion and clogging are major distresses that reduce the functional performance of these sustainable pavements. The open graded structure of the pervious concrete undergoes ravelling due to vehicular movement and they may also allow the suspended particles in stormwater runoff to get clogged inside the pore structure. In this study, 2-layered pervious concrete was designed to balance the trade-offs between strength and durability. The porosity and density of 2-layered pervious concrete were found to be in the domain of conventional pervious concrete.

Result:

The failure pattern in compression indicated that the failure of the specimen was concentrated on the bottom layer compared to the top layer. Further, the compressive strength was found to be in the range of 11.90 to 20.0 MPa. The pore distribution at the interface of the top and bottom aggregate was found to follow 3-parameter Weibull distribution, where the scale parameter increased as the aggregate size increased. The abrasion resistance was found to be lower compared to conventional pervious concrete.

Conclusion:

Overall, it was found that 2-layered pervious concrete can be one of the alternatives to implement pervious concrete pavements addressing the demerits of conventional pervious concrete.
Measurement of the Hygric Resistance of Concrete Blocks with Perfect Contact Interface: Influence of the Contact Area – Complementary Comments
Authors: Delgado J.M.P.Q. , Guimarães A.S. , Ribeiro I. , Freitas V.P.
Published: November 2022

Introduction:

In March 2021, this journal published the paper “Measurement of the Hygric Resistance of Concrete Blocks with Perfect Contact Interface: Influence of the Contact Area”. This commentary aims to provide readers with a set of complementary comments that seek to clarify a few issues that can be raised.

Methods:

The analysis was done based on the original paper “Measurement of the Hygric Resistance of Concrete Blocks with Perfect Contact Interface: Influence of the Contact Area”. The purpose was to complete and comment on the work developed in the original paper, and to clarify some points that might be less understood.

Results and Discussion:

Some interesting questions are presented, and the analysis results intend to clarify them, namely: (1) the magnitude of the quantified post-interface flows; (2) the distinguishability of the moisture absorption in the monolithic and perfect contact samples; (3) the robustness of the knee-point identification algorithm; (4) the dependability of the capillary absorption measurements; (5) the consistency of the capillary absorption processing; (6) the number and “quality” of samples that should be used.

Conclusion:

The conclusions to highlight are the following: the hygric resistance results would be different as they consider different methodologies for the knee point detection and a different number of data points after the knee (different ones) to calculate the slope; the monolithic samples reached the highest moisture masses, Mw, and the Mw values became lower with the interface occurrence; for the knee-point identification, it was only considered valid the use of the third of the three algorithms described in Section 2.3; the taping of the samples was carefully done, and absorption tests using epoxy resin is considered a better solution; the C calculation was made for all monolithic samples, but only the 3 more representative experimental results for each contact area were represented (as mentioned) and the Aw of the 10x10 cm2 cross-section should be 0.1013 kg/m2s0.5, which does not influence the conclusions/findings.
Experimental Investigation of the Forklift Truck Impact on CFS Pallet Racks
Authors: Gusella Federico , Orlando Maurizio
Published: November 2022

Background:

Storage pallet racks are commonly formed by Cold-Formed-Steel (CFS) members and are used worldwide to store goods on pallets. The main racking system is denoted as “selective pallet racking”. This racking system is one pallet deep and is separated by aisles, allowing for each pallet, stored on horizontal beams, to be always accessible. Steel racking systems are frequently subjected to accidental impact forces from operating forklift trucks. If international racking design codes provide an arbitrary value of impact force to design members, several impacts can produce damages, which can lead to system failure, highlighting the fundamental role played by monitoring.

Methods:

Results of an experimental campaign on a full-size selective rack are presented. The investigated rack is subjected to the impact of a forklift truck and hammer test at different points. The propagation of the acceleration among adjacent bracing frames is investigated with the magnitude of the recorded strains in structural members.

Results:

Results highlight that an accelerometer every two spans can establish whether the monitored racking system is accidentally hit. Compressed diagonal and tensile diagonal work in parallel. Only one diagonal brace, every two spans, can be monitored through a strain gauge to establish the forklift truck impact point and estimate the stress distribution on adjacent members.

Conclusion:

The study suggests an optimization in the number, type and position of accelerometers and strain gauges in monitoring racking systems to identify forklift truck impact and its effects.
Implementation of Mechanistic-Empirical Pavement Design Guide against Indonesian Conditions using Arizona Calibration
Authors: Subagio Bambang Sugeng , Prayoga Aldo Budi , Fadilah Siti Raudhatul
Published: November 2022

Background:

As a transportation infrastructure that connects one area to another, roads have an essential role in economic and social growth, together with establishing a location that may improve the quality of life in the surrounding community. For this reason, it is necessary to perform road maintenance when the structural or functional capacity of the road is inadequate, one of which is by overlaying the road.

Objective:

The main objective of this research is to determine the thickness of the flexible pavement overlay and subsequently examine the damage model produced by the 2015 MEPDG method with Arizona calibration. This study also proposes recommendations for implementing the 2015 MEPDG procedures in Indonesian settings.

Methods:

The thickness of the road overlay can be designed through a mechanistic-empirical approach, which is commonly referred to as the Mechanistic-Empirical Pavement Design Guide (MEPDG). The back calculation on the BAKFAA program was utilized to examine the existing situation. At the same time, a stress-strain analysis was performed using the KENPAVE software to calculate the response of the pavement structure.

Results:

The 2015 MEPDG with Arizona calibration by controlling fatigue cracking has resulted in an overlay thickness of 180 mm. In addition, the damage model was obtained for each type of road failure and can be beneficial in estimating the future IRI value.

Conclusion:

The damage model generated from the 2015 MEPDG procedure is specific to the types of road damage, which can eventually be utilized to predict the future IRI value. It also encompasses local and global calibration variables, such as adjustment factors for its implementation in road pavement conditions in Indonesia. The MEPDG application can be simplified by shortening the mechanistic analysis process, along with reducing traffic variations and the level of detail in the daily climate analysis.
Bioinformatics Analysis of the Rothia dentocariosa Proteome and Assessment of the Proinflammatory Potential of Biofilm and Planktonic Cells
Authors: Alshatti Fatmah , Almutairi Rahaf , Alkandari Shareefa , Haneef Asma , Bhardwaj Radhika , Karched Maribasappa
Published: November 2022

Background:

Rothia dentocariosa is an opportunistic pathogen found in the oral cavity and is found to be involved in many oral infections as it has the ability to attach to the tooth and mucosal surfaces, produce substantial amounts of acids and integrate into dental plaque biofilms.

Aim:

To analyze the proteome of R. dentocariosa by using bioinformatics tools and to investigate the proinflammatory potential of R. dentocariosa.

Materials and Methods:

Protein sequences of R. dentocariosa were downloaded from NCBI and various in silico analyses were performed using bioinformatics tools. R. dentocariosa CCUG 35437 was grown on blood agar in 5%CO2 in air at 37 C for 2 days. Biofilms were cultured for 2 days and quantified by crystal violet staining. Human whole blood was stimulated with biofilms, biofilm-supernatants, planktonic cells, and whole cells. Proteome Profiler and ELISA-based quantification of cytokines were performed for the samples.

Results:

In silico analysis of the whole genome and proteome of R. dentocariosa revealed a number of proteins predicted to be potentially secreted but also possess virulence properties. R. dentocariosa was able to form only moderate biofilms. The ability of R. dentocariosa to induce different cytokines varied depending on the stimulant being used. Biofilms and planktonic cultures induced specific cytokines that were not induced by whole cells or biofilm supernatants. While IL-8 was induced at near-similar levels from biofilm and planktonic cells, IL-10 was induced at significantly higher levels (P<0.05) only by the planktonic cultures. The biofilm-supernatant and the whole cell stimulants induced lower levels of cytokines than biofilm and planktonic cultures.

Conclusion:

Identification of potential virulence factors predicted to be secreted extracellularly may suggest a key role for R. dentocariosa in oral and non-oral infections. Different stimulants from R. dentocariosa showed varying potential to induce cytokines from human whole blood. This may suggest differences in the composition/concentration of the bacterial components in the stimulants, with varying abilities to induce cytokine production, maybe the reason for the observed differences.
Cultivation of Edible Algae: Present and Future
Authors: Largo Danilo B.
Published: November 2022

The use of algae as food by humans started in pre-recorded history and is most widespread in Asia, where algae are used as part of the peoples’ daily diet. Of more than ten thousand species of algae that have been described taxonomically, only about a hundred species are known to be edible and are generally recognized as safe (GRAS). Algae for human consumption come from both natural population and opensea aquaculture, but with increasing issues of marine pollution, global warming and marine use conflict, the production of some algal species from aquaculture is shifting towards the more controlled condition of land-based production systems or in sea areas far from sources of pollutants. The preparation of edible algae comes in various forms that are either consumed directly as fresh salad or pickled in vinegar for species with foliose, delicate or succulent nature or as blanched or cooked recipes for species with fleshy, rubbery or firm texture, or they are consumed indirectly as an ingredient or additive of some food recipes as gelling, hardening, or thickening agent. Many species of micro- and macroalgae have nutritional profiles that make them a perfect food for individuals who are on a diet or are health conscious. This chapter describes some of the most common algal genera whose biomass is mainly produced from culture systems that involve a land-based culture facility (e.g., photobioreactor) and or seedling collection procedure prior to open sea cultivation.
Cultivation Techniques to Induce High-Value Nutraceuticals in Microalgae
Authors: Ji Xuan , Webster Luke , Wass Taylor J. , Schenk Peer M.
Published: November 2022

Microalgae are unicellular autotrophic and heterotrophic microorganisms that can exceed the areal productivity of land plants by order of magnitude. Microalgae are producers of food, medicines, high-value bioactive substances and biofuels. They are highly adaptable, allowing them to thrive in freshwater and saltwater, and can be cultivated on non-arable land. Different cultivation methods have varying effects on the yield of bioactive substances produced by microalgae. As such, selecting the appropriate cultivation conditions is imperative for efficient compound production. This chapter summarizes the current state of microalgae cultivation, techniques for overproduction of high-value nutraceuticals, and future prospects, with the aim of providing the reader with fresh ideas for the cultivation of microalgae for human health.
Algal Based Nutraceuticals: Trends and Prospects
Authors: Samrot Antony V. , Renitta R. Emilin , Saigeetha S.
Published: November 2022

Among various emerging food sectors, the nutraceutical sector has gained the attraction of most industries and researchers. Nutraceuticals are generally considered to be the alternative to the pharmaceutical dosage which provides physiological benefits. They are usually functional ingredient present which supplements nutrition to the body. These nutraceuticals are also derived from algae, where the most commonly found products of algae are derived from Spirulina sp, Chlorella sp and Klamath sp. It is reported that microalgae tend to strengthen the immune system by increasing nutritional constituents present in the body. In this review, detailed elaboration of various nutraceutical compounds from algal sources, their recent trends and future prospects are discussed.
Bioactive Compounds from Edible Seaweeds and their Applications
Authors: Rathnayake Anuruddhika Udayangani , Byun Hee-Guk , Wickramasinghe Indira
Published: November 2022

Edible seaweeds (macroalgae and microalgae) are considered superfoods of our waterways. Based on pigmentation seaweeds, macroalgae are classified into three groups, green seaweeds (Chlorophyta), brown seaweeds (Phaeophyta) and red seaweeds (Rhodophyta). Seaweeds are rich in macro and micro nutrients. They contain protein, dietary fiber, minerals, vitamins, polyphenols, peptides, sterols and polyunsaturated fatty acids. Apart from being a major nutritional source in the human diet, seaweed is considered a functional and nutraceutical due to its extra nutritional and physiological properties. Plethora of bioactive compounds with potential applications in food, medicinal, health and pharmaceutical industries are included in extensive research and industries. For example, phycocolloids from seaweeds are widely used in the food industry. Medicinal and pharmaceutical properties of edible seaweeds include anti-tumor property, anti-viral property, anti-coagulant property, anti-Alzheimer’s property, and anti-oxidant property. Thus, a vast scope of investigating and understanding bioactive compounds from edible seaweeds is welltimed.
Microalgae as a Sustainable Source of Vegan Protein and Omega-3 Fatty Acids
Authors: Webster Luke J. , Ji Xuan , Schenk Peer M.
Published: November 2022

As global populations increase, sustainable food production has become concerning, with a massive proportion of the population suffering from malnutrition, and the gradual worsening of negative environmental impacts. Microalgae offer an alternative to traditional food sources, being able to meet nutritional requirements while not competing for arable land, using large amounts of water, or polluting the atmosphere. Algae can be used to produce key nutrients of the human diet – aminoacid- rich protein and healthy fats and oils, the benefits of which have been clearly documented previously. Mass cultivation of algae as a food product would be a step in the correct direction for sustainable food production and can provide significant improvements over traditional agriculture and crop farming industries in terms of health and sustainability.
Micro-Algae as a Source of Food and Bioactive Compounds for Human Health
Authors: Mishra Sonal , Kumari Neha , Sinha Rajeshwar P.
Published: November 2022

Micro-algae are a rich natural source of highly valuable bioactive compounds like mycosporine-like amino acids (MAAs), scytonemin, carotenoids, vitamins, essential amino acids (EAAs), polyunsaturated fatty acids (PUFAs), minerals, polysaccharides, lectins, halogenated compounds, polyketides, agar-agar, alginic acid, carrageenan, enzymes and fibers. These compounds are involved in several defense strategies helping organisms to survive in various extreme environmental conditions, such as high salinity, high and low temperatures and deleterious solar radiation. Furthermore, they are promising biocatalysts and can be used in the field of “white biotechnology” to improve the sustainable production of metabolites. Micro-algae have the potential to become one of the most promising and innovative sources for novel food and functional products. They play a major role as functional ingredients for the enhancement of the nutritional value of foods and thus improving human health, wellbeing and quality of life. Micro-algal-derived bioactive compounds have UVscreening, anti-inflammatory, anti-microbial, antioxidant, antibiotics, immunosuppressants, anticancer and antiviral properties. These bioactive compounds have many biotechnological, industrial, pharmaceutical and cosmetic uses that are discussed in this chapter with their emerging techniques of harvesting to enhance their production on a commercial scale. The diverse metabolites from indigenous sources facilitate the promising effect, enabling researchers and pharmaceutical companies for the production of novel non-toxic and cost-effective medicines related to various applicable fields.
Dietary Component and Composition of Algal Functional Food
Authors: Paz Soraya , Rubio Carmen , Gutiérrez Ángel J. , González-Weller Dailos , Hardisson Arturo
Published: November 2022

Algae, formerly used in food in countries on the Asian continent, are
increasingly common in Western countries. These are foods with great nutritional value
due to their composition in minerals and vitamins, as well as bioactive substances.
Seaweed is a valuable source of antioxidants that, with its consumption, would help
reduce oxidative stress. Likewise, it should be noted that the production of algae is
sustainable and that, due to its own growth factors and low requirements, it reduces
economic costs. This chapter will study the nutritional properties of the consumption of
edible algae and the possible differences between edible species of algae and its
contribution to the recommended daily requirements.
Metabolomics of Different Seaweeds in Functional Food Prospects
Authors: Pabbathi Ninian P.P. , Velidandi Aditya , Shukla Prashakha J. , Nathani Neelam M. , Mootapally Chandrashekar
Published: November 2022

The well-being and improvement of an individual’s health, is directly linked
to food. Acknowledging the well-studied interrelation between health and nutritional
food determines the need to cultivate, maintain and advance a novel branch of food
science, known as functional foods. Research interest has extensively increased in the
last three decades for the exploitation of seaweeds as functional foods or as
nutraceuticals, which provide health and dietary benefits beyond their nutritional
content. Additionally, seaweeds have been studied for their metabolites which exhibit
biological activity, to manufacture therapeutically superior products. This chapter
focuses on providing information related to omics-based seaweed metabolite
identification and their applications in human health as a food ingredient
The Association of COVID-19 Degree on Transamination and Bilirubin Levels of COVID-19 Patients in RSUD Dr. Saiful Anwar Malang
Authors: Rahmawati Ade , Mustika Syifa
Published: November 2022

Background : Corona virus 2019 (COVID-19) is an infectious viral disease caused by SARS-CoV-2 that has infected the world. COVID-19 can cause abnormalities which are characterized by increased levels of the enzyme transaminase and bilirubin. Research on the association between transaminase enzymes and bilirubin is still limited, further research is needed on the association between the degree of COVID-19 and levels of the transaminases and bilirubin enzymes.
Aim: To determine the association between liver function on the degree of severity and outcome of COVID-19 patients.
Method: This was the cross-sectional study. Sampling method was using consecutive sampling at RSUD Dr. Saiful Anwar Malangwho was treated from June 1st 2021 until November 31st 2021 by the Department of Internal Medicine. Statistical analysis used the Kruskal Walllis and Mann Whitney test with a significance level of p<0.5% and correlation analysis using Spearman.
Result: Among 90 patients included in this study there was a strong positive correlation between the degree of COVID-19 and levels of SGOT (r=0.954, p <0.001) and SGPT (r=0.727, p <0.001) and according to regression test, SGOT has the positive correlation towards degree of COVID-19 severity (p=0.026 CI95%: 0.002-0.028). There was a correlation between the degree of COVID-19 and the total bilirubin level (r=0.586, p=0.011). There was no correlation between levels of transaminase enzymes, total bilirubin, direct and indirect bilirubin on the patient's outcome (p>0.050).
Conclusion: There is a positive correlation between the degree of COVID-19 with levels of the enzyme transaminases, indirect and total bilirubin.
Knowledge of General Practitioner’s toward Spondyloarthritis (SpA): A Qualitative Study
Authors: Pratama Mirza Zaka , Wahono Cesarius , Mukti Nabila , Rahman Perdana
Published: November 2022

Background: Low back pain (LBP) is one of major health problems experienced by 80-85% of patients in their lifetime. Spondyloarthritis (SpA) has become one of the leading causes of chronic LBP but is often undiagnosed. General practitioners (GP) have an essential role in the early diagnosis of SpA.
Aim: To explore the knowledge of GP about SpA from clinical diagnosis and early management and elaborate on each GP’s clinical perspective and practice performance.
Methods: A qualitative study that involved 12 GP. All was consented to participate in an in-depth interview with the experts by online meeting with 15-20 minutes duration. Analysis was focused on the definition, classification, clinical manifestation, diagnosis, and early management of SpA in primary care.
Results:  All GP were interviewed (12 GP, 9 men, and 3 women; mean age 29.42) with average years in clinical practice was 3.8 years. All GP could describe the definition of SpA. Only a few subjects are aware of the subtype of SpA. Most of the GP could mention chronic back pain as the main SpA symptom, some GP mentioned extra-articular manifestation, but incomplete. All GP understood the current treatment in clinical practice.
Conclusion:  GP is aware of SpA, but not all could completely mention the type and clinical entities. In addition, a limited resource for investigation makes a diagnosis of SpA difficult. Current early treatment has been acceptable in clinical practice. A comprehensive understanding of diagnosis and effective early treatment may reduce delayed diagnosis and improve patients' quality of life.
Improving Quality of Life in Pulmonary Hypertension with Exercise Training Therapy
Authors: Baskarani Ni Putu Frida , Tri Tjahjono Cholid
Published: November 2022

Pulmonary hypertension is an increase in pulmonary artery pressure >25 mmHg. This causes some disturbing clinical complaints. The most common causes of pulmonary hypertension are idiopathic and congenital heart disease. ASD (Arterial Septal Defect) is a congenital heart disease that occurs in 1.6 per 1000 live births, with a fairly high life expectancy. However, most people with ASD are not aware of a heart problem before the appearance of a clinically significant disorder. Most patients with ASD with complications of pulmonary hypertension will complain of being easily tired, fainting easily and having difficulty carrying out daily activities, even light activities. Most ASD cases apply shunt closure therapy as the main therapy, but not a few ASD cases cannot be shunted closure because it is a contraindication that can lead to more severe complications, especially with complications of chronic pulmonary hypertension. One of the non-medical therapies used to improve the quality of life of patients with pulmonary hypertension is exercise therapy. This therapy provides a variety of physical exercises that aim to increase the strength of respiratory muscles and extremities.
From this case, exercise therapy is able to provide a significant improvement in the quality of life of the patient with an increase in the patient's ability to perform physical activities, as evidenced by the increase in distance traveled when doing the six-minute walk test (SMWT).
A SUSTAINABLE CARBON FOOTPRINT ANALYSIS FOR THE CITY OF KUANTAN, PAHANG MALAYSIA
Authors: Abdul Latip Normah , Umar Mohd Umzarulazijo
Published: November 2022

Carbon footprint is one of the critical elements in assessing the level of sustainability of an urban area or forest area. Cities are a vital contributor to climate change with 75 percent of global carbon emissions are from cities. Transportation, buildings and urban activities are among the most critical contributors of greenhouse carbon emission globally. The study aims to identify the current condition of total carbon produced in the study area. Geospatial and observation approaches with social distance and standard operation procedure were used during the data collection and fieldwork at the study area. Mapping analysis and survey were used to analyse the activities conducted and the carbon consumption level by visitors of the area. Preliminaries’ findings indicate that the visitors’ activities and carbon consumption were high within the existing green area at Esplanade Kuantan, Pahang.
SOCIAL IMPACT OF SOCIAL DISTANCING ON RESIDENTS OF LOW-COST APARTMENTS DURING THE CONDITIONAL MOVEMENT CONTROL ORDER (CMCO) IN SELANGOR, MALAYSIA
Authors: Mokhtar Nur Suhada , Ling Hoon Leh Oliver , Marzukhi Marlyana Azyyati , Jie Kwong Qi
Published: November 2022

The spread of the coronavirus since the end of 2019 turned the pandemic into the main global health challenge. One preventative measure has been social distancing, which requires physical distance to be maintained between people who are not members of the same household. The implementation of social distancing has impacted many aspects of daily life, especially learning, working, physical movement, and sports/recreational activities. In 2021, a study was conducted among residents of a low-cost apartment complex in Selangor, Malaysia to examine the social impacts of social distancing. Analysis of the data collected from a questionnaire survey revealed that for most respondents, social distancing affected the performance of their daily activities in most places. Of the seven (7) types of social activities examined, family life and neighbourhood/community relationships were less negatively affected in terms of quality of life. Meanwhile, their quality of life was reduced, especially in relation to sports/recreational activities and transportation/physical movement. Lifestyle changes or the new normal for the purpose of implementing social distancing for public/social activities should be studied further to reduce the negative social impact of this measure.
THE IMPACT OF THE MOVEMENT CONTROL ORDER (MCO) ON TYPE OF COMMERCIAL ACTIVITIES IN MUAR TOWN, JOHOR
Authors: Mohd Sapian Muhammad Syafiq , Hassan Mohd Azren , Abdullah Yusfida Ayu , S. Muthuveeran Adam Aruldewan , Yin Izuandi , Nasrudin Na’asah
Published: November 2022

The COVID-19 pandemic has changed human nature. The Malaysian government declared the Movement Control Order as a measure to control the spread of COVID- 19 with various restrictions. The Movement Control Order has affected daily routines as well as commercial activities. Therefore, the study will focus on the impact of movement control orders during the COVID-19 pandemic on the operations, supply of materials and products, as well as finances of commercial activities at a district level. The town of Muar, Johor, has been identified as the commercial area for this study. The data collection was accomplished by a questionnaire survey and by using convenience sampling with 100 respondents answering the questionnaire. A crosstable analysis and a Pearson’s chi-squared test analysis were used to examine the Movement Control Order‘s implications on commercial activities’ operations, supply of materials and products, and finances. The findings indicated that the Movement Control Order had a substantial impact on commercial activities. The study concluded that cash flow for survival needs critical attention due to this unprecedented outbreak, which led to the economic downturn. It is recommended that the government offer training courses on digital marketing and e-commerce to boost commercial activities as part of a new business strategy and financial management plan, particularly for new businesses at the district level.
THE BENEFITS OF GREEN INFRASTRUCTURE PLANNING IN ADDRESSING LOST SPACES UNDERNEATH ELEVATED URBAN HIGHWAYS
Authors: Mohamed Anuar Mohamed Ikhwan Nasir , Abdullah Saiful Arif
Published: November 2022

Traditional planning practices, wherein attention is directed at the provision of single functions or zoning, have led to the emergence of lost spaces in cities like Kuala Lumpur. Elevated highways are a prominent contributor to the formation of these lost spaces and are seen as a hurdle in achieving a sustainable compact city. Studies suggest that green infrastructure (GI) planning, which aims to promote multifunctionality in spatial planning, is a suitable approach to address this dilemma. To identify the benefits of the GI approach in mitigating lost spaces underneath elevated highways in Kuala Lumpur City, this study utilized two methods: site observation and expert interviews. The results suggest that GI planning can achieve benefits ranging from economic aspects, such as increasing property value, to social aspects, such as promoting a healthier urban lifestyle. However, such benefits may vary as these spaces have different typologies in terms of accessibility, size, location, and surrounding context. Nonetheless, the GI approach can be seen as the key to achieving a sustainable compact city, since it supports the ability of urban spaces to provide multiple benefits concurrently. Thus, the identification of its benefits could lead to the more sustainable planning, design, and management of lost spaces.
LOCAL PERCEPTIONS TOWARDS THE ENVIRONMENTAL IMPACT OF TOURISM ON THE CHÀM ISLANDS, VIETNAM
Authors: Ngoc Chau Ngan Nguyen , Omar Shida Irwana , Nhu Ngoc Ho
Published: November 2022

Local perceptions have the most significant impact on the sustainable tourism practices in a region. This study used the Social Exchange Theory (SET) to examine how local perceptions towards the environmental costs and benefits affect their support for tourism development. The study involved 300 residents of the Chàm Islands. Two factors that affect local perceptions towards the environmental costs and benefits; namely, community concern and eco-centric attitudes; were assessed. Two factors were found to have a positive effect on the perceived environmental costs while community concern had influence on perceived environmental benefits. Local perceptions towards the environmental costs and benefits also had a positive and significant correlation with their support for tourism development. Therefore, the locals still support tourism development even though they believe the environmental costs outweigh its benefits. The government and tourism planners may use the findings to guide local perceptions towards the environmental impacts to develop sustainable practices.
Detecting Tweets Containing Cannabidiol-Related COVID-19 Misinformation Using Transformer Language Models and Warning Letters From Food and Drug Administration: Content Analysis and Identification
Authors: Turner Jason , Kantardzic Mehmed , Vickers-Smith Rachel , Brown Andrew G
Published: November 2022

Background

The COVID-19 has introduced yet another opportunity to web-based sellers of loosely regulated substances, such as cannabidiol (CBD), to promote sales under false pretenses of curing the disease. Therefore, it has become necessary to innovate ways to identify such instances of misinformation.

Objective

We sought to identify COVID-19 misinformation as it relates to the sales or promotion of CBD and used transformer-based language models to identify tweets semantically similar to quotes taken from known instances of misinformation. In this case, the known misinformation was the publicly available Warning Letters from Food and Drug Administration (FDA).

Methods

We collected tweets using CBD- and COVID-19–related terms. Using a previously trained model, we extracted the tweets indicating commercialization and sales of CBD and annotated those containing COVID-19 misinformation according to the FDA definitions. We encoded the collection of tweets and misinformation quotes into sentence vectors and then calculated the cosine similarity between each quote and each tweet. This allowed us to establish a threshold to identify tweets that were making false claims regarding CBD and COVID-19 while minimizing the instances of false positives.

Results

We demonstrated that by using quotes taken from Warning Letters issued by FDA to perpetrators of similar misinformation, we can identify semantically similar tweets that also contain misinformation. This was accomplished by identifying a cosine distance threshold between the sentence vectors of the Warning Letters and tweets.

Conclusions

This research shows that commercial CBD or COVID-19 misinformation can potentially be identified and curbed using transformer-based language models and known prior instances of misinformation. Our approach functions without the need for labeled data, potentially reducing the time at which misinformation can be identified. Our approach shows promise in that it is easily adapted to identify other forms of misinformation related to loosely regulated substances.
Penerapan Data Spasial Kebijakan Satu Peta untuk Pemodelan Kerawanan Malaria Terintegrasi, Kasus Malaria Perbukitan Menoreh
Authors: Widartono Barandi Sapta , Suharyadi Suharyadi , Satoto Tri Baskoro Tunggul , Garjito Triwibowo Ambar , Rejeki Dwi Sarwani Sri
Published: November 2022

Abstrak. Kebijakan Satu Peta (KSP) atau One Map Policy (OMP) merupakan salah satu program prioritas pemerintah dalam pelaksanaan Nawa Cita. Implementasi KSP diharapkan dapat membantu percepatan pelaksanaan pembangunan nasional di berbagai bidang, yang diantaranya adalah di bidang kesehatan. Salah satu program di bidang kesehatan yang dipandang relevan dengan implementasi KSP adalah program pengendalian malaria. Penelitian ini bertujuan untuk mengeksplorasi dan mengidentifikasi data KSP yang dapat digunakan untuk memetakan kerawanan malaria. Eksplorasi dan identifikasi data KSP dilakukan dengan menggunakan pendekatan spasial ekologis yaitu habitat nyamuk vektor malaria. Menggunakan metode Spatial Multi Criteria Analysis (SMCA) yang diintegrasikan dengan SIG. Data KSP terpilih yang digunakan adalah pada kelompok tematik batas wilayah serta sumberdaya alam dan lingkungan yaitu diantaranya batas wilayah administrasi, sistem lahan, geologi, dan penutup lahan, ditambah dengan data kerapatan vegetasi yang di ekstraksi dari citra Landsat. Pemetaan dilakukan di daerah reseptif malaria di Perbukitan Menoreh. Peta kerawanan malaria yang dihasilkan dari implementasi KSP secara umum selaras dengan kondisi kejadian malaria yang terjadi sehingga nantinya dapat digunakan sebagai bahan kajian untuk informasi spasial terpadu. Abstract. One Map Policy (OMP) is a priority government program in the implementation of Nawa Cita. One Map Policy implementation can help national acceleration development in every sector, such as health. One of the programs in the health sector that is relevant to OMP implementation is the malaria control program. The purposes of this research are to explore and identify OMP data that can be used to map the malaria hazard. Exploration and identification of OMP data was carried out using a spatial ecology approach that is the habitat of the malaria vector mosquito. This research uses the spatial multicriteria analysis (SMCA) method which is integrated with a geographic information system (GIS). The selected OMP data are boundary and natural resources and environment thematics groups, such as administrative boundaries, land system, geology, land cover, and vegetation density extracted from Landsat imagery. This mapping is located in an endemic malaria area, Menoreh Hills. The resulting malaria hazard map from OMP implementation is generally in line with the conditions of malaria incidence that occur so that it can be used as a study for spatial integrated information.
Analisis pembangunan wilayah melalui program dana desa di Kabupaten Bogor: pendekatan teori kelembagaan
Authors: Ghassani Shabrina Agustin , Priyarsono Dominicus Savio , Rindayanti Wiwiek , Seminar Annisa Utami
Published: November 2022

Abstrak. Salah satu agenda besar dalam strategi pembangunan wilayah perdesaan adalah mengimplementasikan program dana desa. Namun, masih ditemukan kendala yang menghambat keberhasilan program dana desa yang sebabkan oleh lemahnya kapasitas kelembagaan desa. Sehingga, penelitian ini bertujuan untuk menganalisis faktor penghambat ditinjau berdasarkan perspektif kelembagaan yang menghambat proses pengelolaan dana desa dalam pembangunan wilayah perdesaan. Penelitian ini merupakan penelitian studi kasus yang menggunakan metode analisis isi dan analisis tematik dengan pendekatan kualitatif untuk menggali proses pengelolaan dana desa dalam menunjang pembangunan wilayah perdesaan yang dilakukan di Kabupaten Bogor. Berdasarkan hasil analisis, belum optimalnya alokasi pemanfaatan dana desa dalam perencanaan pembangunan dipengaruhi oleh unsur kognitif-kultural masyarakat. Secara normatif, kepala desa memiliki keprofesionalitasan yang rendah. Lemahnya pengawasan kepada kepala desa menyebabkan rendahnya profesionalisme kepala desa dalam melaksanakan pertanggungjawaban kepada masyarakat. Hal ini menyebabkan rendahnya rasa memiliki masyarakat terhadap program dana desa, sehingga pelaksanaan pembangunan desa melalui program dana desa dinilai belum sampai pada tahap menjadikan masyarakat desa sebagai subyek pembangunan. Abstract. The big agenda in the rural area development strategy is implementing the village fund program. However, there are still obstacles that hinder the success of the village fund program which is caused by the weak capacity of village institutions. Thus, this study aims to to analyze the inhibiting factors from an institutional perspective that hinder the management of village funds in developing rural areas. This is case study research that use content and thematic analysis with a qualitative approach to explore the process of managing village fund in Bogor Regency. Found that, the non-ideal allocation of village fund utilization in development planning was influenced by the cognitive-cultural element. Weak supervision of the village head causes the low professionalism of the village head in carrying out accountability. This led to low sense of belonging from community towards the village fund program. The implementation of rural area development through the village fund program is considered not have reached the stage of making rural communities the subject of development.
IMPROVING CORROSION RESISTANCE OF MAGNESIUM NANOCOMPOSITES BY USING ELECTROLESS NICKEL COATINGS
Authors: Banerjee Sudip , Sarkar Pujan , Sahoo Prasanta
Published: November 2022

The present study aims at improving corrosion resistance of magnesium nanocomposites through autocatalytic Ni-P coating. Electroless Ni-P coatings with different concentration of sodium hypophosphite are deposited on 2% WC incorporated magnesium nanocomposites (AZ31-2WC) and the coated samples are further heat-treated. Basic characterizations and compositional analyses are done by using scanning electron microscope (SEM), energy dispersive x-ray analysis (EDAX), and X-ray diffraction analysis (XRD). Microhardness values of the developed materials are also evaluated. The attempt is made to improve corrosion resistance of AZ31-2WC by modifying surface roughness. Corrosion characteristics of Ni-P coated AZ31-2WC nanocomposites are examined by performing potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS). Corrosion resistance improves with enhancement of surface quality. Corrosion resistance of AZ31-2WC nanocomposite also improves due to application of Ni-P coating. Finally, corrosion morphologies are scrutinized by SEM micrographs of corroded surface.
MATHEMATICAL MODELLING OF THE CO2 LASER CUTTING PROCESS USING GENETIC PROGRAMMING
Authors: Madić Miloš , Gostimirović Marin , Rodić Dragan , Radovanović Miroslav , Coteaţă Margareta
Published: November 2022

The development of mathematical models by using experimental data is of great importance for modelling and optimization of the laser cutting process. Motivated by the lack of research regarding the use of genetic programming (GP) for deriving empirical mathematical models that describe the laser cutting process, the present study discusses the application of GP to the development of a kerf taper angle mathematical model. The aim was to quantify the relationship between three selected input parameters (cutting speed, laser power and assist gas pressure) and kerf taper angle using GP in the CO2 laser cutting of aluminium alloy AlMg3. To obtain the experimental database for the GP model evolution process, a laser cutting experiment was planned as per standard full factorial design where all three selected parameters were varied at three levels. The fit between the experimental and the GP model prediction values of kerf taper angle was found to be appropriate. Finally, by using the derived GP mathematical model, the analysis of the effects of input parameters on the change in kerf taper angle values was performed by generating 3D surface plots.
Análisis del grado de disfunción eréctil en adultos jóvenes de Tijuana, México
Authors: Jáuregui-Vélez Daniel I. , Bermúdez-Villalpando Vanessa I. , Vidal-Solorzano Linda C. , Castillo-Montes María A. , Ochoa Maria Citlaly , Ramírez-Leyva Diego H.
Published: November 2022

Objetivo: describir el grado de disfunción eréctil en adultos jóvenes de Tijuana, México. Métodos: estudio transversal descriptivo, se realizó de enero a diciembre de 2021. Participaron adultos jóvenes del sexo masculino de 18 a 35 años de edad con algún grado de disfunción eréctil que cumplieron con los criterios de selección. El tamaño de la muestra fue de 286 participantes, muestreo no probabilístico por conveniencia. La presencia y grado de disfunción eréctil se evaluó mediante el Índice Internacional de Función Eréctil. El resto de variables se obtuvo mediante entrevistas estructuradas. Para el análisis de datos utilizamos estadística descriptiva; las variables cualitativas se expresaron en frecuencias y porcentajes. Resultados: el grado más frecuente de disfunción eréctil estuvo en la categoría leve (66%). La mitad de los participantes se encontraba sin pareja estable. La mayoría de los hombres eran empleados y tenían educación básica. Conclusión: se encontró un alto porcentaje de pacientes con disfunción eréctil en grado leve. Valorar la magnitud de este problema permitirá establecer estrategias para abordar la disfunción eréctil en este grupo etario.
Quiste dentígero circunferencial asociado a mesiodens invertido oronasal: reporte de caso.
Authors: Melián Rivas Andrés Noah , Tobar Villanueva Nicolas , Boin Barkit Camila , Alegria Villa Daniela , Torrealba Marcela , Marino Espinoza Antonio
Published: November 2022

Introducción: el quiste dentígero es un quiste odontogénico del desarrollo, caracterizado por rodear la corona de dientes no erupcionados o en desarrollo, cuya patogenia exacta es desconocida. La asociación de estas lesiones a dientes supernumerarios es rara, representando 5-6% de todos los quistes dentígeros reportados, desarrollándose en 90%, alrededor de mesiodens en el maxilar anterior con escasos reportes asociados a mesiodens invertidos. En adición a esto, se han identificado pocos casos de variantes de quistes dentígeros circunferenciales, los cuales rodean por completo al diente, siendo una entidad muy rara, cuyo diagnóstico diferencial representa un desafío. Objetivo: presentar un caso de una variante circunferencial poco frecuente de quiste dentígero de lo-calización oronasal, asociado a un diente supernumerario invertido en el maxilar superior. Reporte del caso: paciente masculino, 43 años, sistémicamente sano, relata presión en zona maxilar anterior. Clínicamente, se palpa tumoración vestibular y palatina de consis- tencia firme, recubierta por mucosa normal. Al examen radiográfico se observa área osteolítica corticalizada, con focos radiopacos. En CBCT se aprecia lesión quística, que se relaciona cranealmente conmesiodens, en posición invertida. Se realiza instalación de cánula de descompresión y biopsia incisional. El análisis histopatológico muestra membrana quística con revestimiento epitelial escamoso no queratinizado y focos de calcificaciones distróficas. Se plantea el diagnóstico de quiste dentígero. Tras seis meses se realiza control con radiografía panorámica y CBCT, evidenciándose disminución del tamaño de la lesión, efectuándose la consecuente enucleación quirúrgica con posterior relleno del lecho con hueso liofilizado, sin recidivas a los seis meses. Conclusión: dado el comportamiento clínico de esta lesión y su particular localización, es fundamental la ejecución de un completo examen clínico, estudio imagenológico e histopatológico, para la correcta formulación del diagnóstico y plan de tratamiento.
Pseudoaneurisma de la arteria temporal superficial en cirugía de liberación de anquilosis temporomandibular: reporte de caso
Authors: Reinoso-Quezada Santiago José , Heredia-Veloz David , Maurat-Argudo Andrea Karina
Published: November 2022

El aneurisma de la arteria temporal superficial (AATS) es un trastorno raro de etiología poco conocida; se le relaciona a distintos factores, entre ellos el traumatismo, laceraciones quirúrgicas, formación espontánea o iatrogenia de procedimientos capilares, neuroquirúrgicos, remoción de quistes, extensión de artroplastia de la articulación temporomandibular, entre otros. Este estudio tiene como propósito presentar un caso clínico de un pseudoaneurisma postraumático de la arteria temporal superficial en la cirugía de liberación de anquilosis temporomandibular.