bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimation of PM2.5 surface concentrations in the North-eastern and Eastern regions of Thailand from NASA’s MERRA2 satellite data
Authors: Chidburee P , Nusit K , Tantanee S 
Published: March 2023

Abstract
The study aims to monitor PM2.5 concentrations in the north-eastern and eastern regions of Thailand for the past 5 years (from 2017 to 2021) from satellite observations for monitoring air quality. To ensure the PM2.5 concentrations from satellite data of NASA’s MEERA2 products, it is necessary to evaluate and analyze the relationship between PM2.5 data from satellite observations and higher precision data from ground-based stations of the Pollution Control Department (PCD) in terms of various statistical values, such as squared correlation coefficient (R2), mean (Bias) and Root Mean Square Error (RMSE). Then, the estimation of the monthly average for PM2.5 concentrations was performed using satellite data of MERRA2 products by bias correction method with twenty PCD’s ground stations. The result shows that before correcting the relationship value is relatively low, the performance of estimating PM2.5 concentrations from satellite data needs to be improved from the monthly average using the bias correction method. After bias-corrected, a correlation coefficient (R2) value of 0.73 was improved from 0.56. A mean (Bias) of 0.03 µg/m3 and an RMSE of 6.39 µg/m3 were decreased. It is clear that bias correction can help to improve estimating PM2.5 concentrations from MEERA2 products.
Development of web-based spatial decision support system using landslide hazard mapping outcomes: an example of GIS-based hazard assessment
Authors: Tantanee S , Long G , Nusit K 
Published: March 2023

Abstract
Presently, the risk of natural hazards is continuously increasing which may cause noticeable casualties and destruction under the influence of climate change. Information regarding the hazard characteristics, capacity, susceptibility, and vulnerability in pre-disaster phases is critical in realizing efficient disaster management. There are numerous GIS-based hazard assessment studies have been done by researchers every year; however, most of their GIS-based outcomes have rarely been effectively used for supporting the decision-making processes in real situations. The objective of the study is to propose an appropriate way of using these GIS-based hazard assessment outcomes to develop a Web-based platform to effectively support the decision-making processes. The GIS-based hazard assessment outcomes from previous work are used in this study to develop a Web-based spatial decision support system as an example of practicing the proposed approach. Finally, there are 3 modules including general module, thematic single factor maps module, and results module have been designed and developed in the system. This approach provides a new way of making better use of all kinds of GIS-based hazard assessment outcomes, which can be used as an effective decision-making support tool. In addition, it can be used as a guideline for future research.
Sustainability assessment of palm oil mills effluent utilization for electricity conversion
Authors: Lestari F , Prasetya H , Mahmud J , Hambali E , Yani M , Machfud  , Faroha F A , Putri N S , Marimin  
Published: March 2023

Abstract
The sustainability of the palm oil agroindustry development has been widely discussed. Currently, there has been an issue regarding the sustainability of palm oil agroindustry in certain parts with specific systems. Thus, aspects and indicators built in general need to be adjusted. This study assesses the sustainability of the palm oil mill effluent utilization for electricity conversion. The adjustment of sustainability indicators on economic, social, and environmental aspects has been studied through expert discussions. The selected indicators are weighted using the analytical hierarchy process method which a competent expert assesses. The aggregated sustainability value is determined by a decision matrix calculated using the composite performance index. The proposed method has been tested with field data on two palm oil mills that convert liquid waste into electrical energy involving Palm Oil Mill A and Palm Oil Mill C and a palm oil mill that still uses co-firing technology, Palm Oil Mill B. The results of the analysis show that the sustainability status of case A is Sustainable, B is Less Sustainable, and C is less Sustainable. Further research is needed to formulate strategies for improving the sustainability status and efforts to generalize the sustainability assessment model.
Study of low cost of microalgae chlorella sp. harvesting using cationic starch flocculation technique for biodiesel production
Authors: Dewayanto N , Adhi K , Negara N A K , Sadewo B R , Nisya A F , Prakoso O , Hariyadi  , Sigit U , Suyono E A , Budiman A 
Published: March 2023

Abstract
The crisis of energy has become the main concern for human civilization. Microalgae is an attractive source of biomass for energy production because it has high productivity, does not compete with food, do not require a large area and its ability to absorb CO2. Chlorella sp. has the potential to be used as raw material for biodiesel due an oil content of 28-32% and easily developed in Indonesia. Harvesting is a very cost-determining step in converting algal biomass into biodiesel. Cationic starch has a strong potential as a flocculant agent because of its abundance and low price. This research aims to identify the potential of cation starch as a flocculant agent and obtain optimum the condition for harvesting Chlorella sp. Based on this study, cationic starch can be used as an alternative organic flocculant for Chlorella sp. The optimum dose and flocculation are 1 g/L dosage, 400 rpm flocculation speed and 15 minute flocculation time. With the optimum condition, harvesting efficiency on the laboratory scale is 98.23% and the pilot scale is 96.05%. This difference in harvesting efficiency values indicates that the efficiency tends to decrease with a larger volume of Chlorella sp.
The influence of calcination temperature on crystallographic and chemical characteristics of NiO-CeO2 powder for PCFC anodes
Authors: Yusoff N F , Jamil Z , Osman N 
Published: March 2023

Abstract
Ceria-based materials have the potential to be used as catalysts in electrochemical devices, especially ceramic fuel cells. Their incorporation into nickel-based catalysts promotes metallic dispersion, minimises particle agglomeration, and enhances metal-support interaction at the anode site of proton ceramic fuel cells (PCFCs). In this study, a methodical approach to investigate and analyse the effect of calcination temperature on the crystallographic structure and chemical properties of a nanostructured NiO-CeO2 powder that will be used as catalysts at the anode site of proton ceramic fuel cells (PCFCs) for cleaner power generation. The calcination temperature profile of the was varied from 300 °C to 600 °C. XRD and FTIR were used to investigate crystallinity and chemical properties of the prepared NiO-CeO2 powder. The XRD investigation results show that such increasing calcination temperature may increase the size of nanoparticles powder and phase purity. Following that, the FTIR analysis shows that the absorption bands formed at less than 800 cm−1 represent the metal-oxygen stretching (Ce-O and Ni-O stretch) which confirms the existence of NiO-CeO2 particles, thus, confirms the purity of NiO and CeO2 composite particles and suitable materials for PCFC anodes.
The Early Chemical Characteristics of Geothermal Surface Features of Mount Lompobattang-Bawakaraeng, Gowa and Bantaeng Regency, South Sulawesi, Indonesia
Authors: Yushantarti Anna , Hermawan Dudi 
Published: March 2023

Abstract
The Early study of surface geothermal features characteristics, based on surface chemical characteristics fluids is compulsory for understanding the geothermal system. The geothermal area of Mount Lompobattang-Bawakaraeng is mostly located in Gowa and Bantaeng Regency, South Sulawesi and these data were taken in 2018. The stratigraphy is composed of Tertiary Volcanic Sediments and Lompobattang-Bawakaraeng Quaternary Volcanic. The geological structures consist of caldera rim on the peak of Mount Lompobatang-Bawakaraeng and the fault structure of southwest-northeast and northwest-southeast which controls the appearance of geothermal manifestations on the surface. The active thermal manifestations are only warm springs, i.e., Batu Belerang, Pencong, and Parangloe warm springs. Batu Belerang warm spring is situated at an altitude of around 1400 masl, while Pencong and Parangloe warm springs are about 24 km from Batu Belerang warm springs with a lower altitude of around 168 masl. The temperature of the warm springs is around 31- 49.2 °C. There is one inactive surface geothermal manifestation, i.e., the Cold Acid Crater Lake Blue Luraya (Danau Biru Luraya) at the elevation of 1561 masl, the water temperature of 17 °C. The result of water analysis shows that warm springs Pencong and Parangloe have more dominant HCO3. The Batu Belerang and the Cold Acid Crater Lake Blue Luraya (Danau Biru luraya) are more dominated by SO4. In the triangular diagram that compares the relative concentrations of Na, K, Mg shows that the Pencong group (Pencong and Parangloe warm springs) is plotted in the lower boundary zone of partial equilibrium, while Lompobattang group (Batu Belerang warm springs and Cold Acid Crater Lake Blue Luraya (Danau Biru Luraya) is plotted in the corner of Mg (immature waters zone). The temperature of the system is probably only estimated at the shallow part of the system by SiO2 geothermometer about 125 °C and the Batu Belerang could be more than 125 °C.
Heat Source Identification by Reprocessing Geoscience Data to Update Conceptual Model of Pentadio Geothermal Prospect Area
Authors: Pasaribu After Helfert , Pratama Angga Bakti , Pramudityo Dedy 
Published: March 2023

Abstract
The Pentadio Geothermal Prospect Area, Gorontalo, has been studied for geothermal development in the exploration stage. The previous conceptual model that has been produced shows that magma is the heat source of the geothermal system only based on geochemistry of manifestations that had high SO4
2- concentrations. However, the presence of tertiary intrusion based on regional geological data and high SO4
2- concentration cannot be strong evidence to prove the heat source is associated with magmatic system. The purposes of this research are updating the conceptual model, defining the heat source, and producing a different perspective from the previous study for the geothermal system in Pentadio Geothermal Prospect Area by providing a further analysis based on geoscience data reprocessing that had been acquired before. The methods consist of geological structure analysis that involves defining the permeability and geochemistry analysis for interpreting the type of reservoir fluid. Gravity data were reprocessing produced the regional and residual maps, and 3D modelling analysis for determining subsurface condition and heat source possibility in Pentadio Geothermal Prospect Area. The Pentadio Geothermal System is correlated with Gorontalo Graben which controls the permeability in the system. The fluid from geothermal manifestations near Limboto Lake has alkaline pH even though it has high SO4
2- content and low magnesium content. Gravity data shows the regional fault (NW-SE) has a depth of more than 4 km and seems to have the possibility of producing heat influx to the near surface. It is suspected as a heat source of the geothermal system in this area. There is no evidence for magma intrusion to be a heat source in the subsurface by geology and geophysics model. The high concentration of SO4
− in manifestations was influenced by sediment contamination in this area.
Feasibility evaluation to expand a collaborative practice agreement and discontinue antibiotics after an emergency department or urgent care visit
Authors: Geyer Abigail C , Draper Heather M , Wolf Lauren M , Buss Paige M , Dumkow Lisa E 
Published: March 2023

Abstract

Purpose
The impact of pharmacist-led culture follow-up programs for positive cultures is well established. The benefits and feasibility of evaluating negative cultures and deprescribing unnecessary antibiotics after emergency department (ED) and urgent care (UC) visits are unknown; therefore, this evaluation characterized the burden of negative urine cultures and chlamydia tests and estimated how many potential antibiotic days could be saved with deprescribing.

Methods
This retrospective, descriptive study evaluated patients discharged from an ED or UC location with a pharmacist-led culture follow-up program. The primary objective was to characterize the proportion of patients with a negative urine culture or chlamydia test where an opportunity would exist to deprescribe antibiotics at follow-up. Secondary endpoints included estimating the number of potential antibiotic days that could be saved, postvisit healthcare utilization, and documented adverse drug reactions (ADRs).

Results
For a 1-month period, pharmacists reviewed 398 cultures, of which 208 (52%) were urine cultures or chlamydia tests with negative results. Fifty patients (24%) with negative results had been prescribed empiric antibiotics. The median duration of antibiotic treatment was 7 days (interquartile range [IQR], 5-7 days), while the median time to culture finalization was 2 days (IQR, 1-2 days). There was an opportunity to save a median of 5 antibiotic days per patient. Thirty-two patients (15.3%) followed up with their primary care physician within 7 days; of these patients, 1 (0.05%) had their antibiotic prescription discontinued by the primary care physician. There were no documented ADRs.

Conclusion
Expansion of pharmacist-led culture follow-up programs to deprescribe antibiotics for patients with negative cultures has the potential to save significant antibiotic exposure.
Tell me more, tell me more: repeated personal data requests increase disclosure
Authors: Fleming Piers , Edwards S Gareth , Bayliss Andrew P , Seger Charles R 
Published: March 2023

Abstract
Personal data is of great commercial benefit and potential sensitivity. However, for the consumers who provide their personal data, doing so comes with potential costs, benefits and security risks. Typically, consumers have the option to consent to the use of personal/sensitive data but existing research suggests consumer choices may only be weakly related to their concerns (the privacy paradox). Here, we examine if the repetitive nature of data requests alters behaviour but not concern, therefore, explaining the divergence. This work is theoretically grounded in ‘Foot in the door’ research in which small initial requests facilitate subsequent larger requests. An initial laboratory study asking for real, personal data demonstrated increased information disclosure at a subsequent request. A second online study replicated the increased information disclosure effect and found no change in associated privacy concern. We find this supports foot-in-the-door as one explanation of the privacy paradox. We suggest ways for businesses and consumers to encourage an acceptable level of disclosure to match personal beliefs for mutual trust and benefit.
A double-chambered left ventricle with a giant thrombus: a case report
Authors: Nie Weixia , He Jian , Lu Minjie 
Published: March 2023

Abstract

Background
A double-chambered left ventricle (DCLV) is an extremely rare congenital disease that is often asymptomatic and undiagnosed until adulthood. The incidence of a double-chambered right ventricle is estimated to be 1 in 36000 patients, while the incidence of DCLV is certainly even lower. To date, only a handful of cases of DCLV have been reported.

Case summary
A 4-year-old boy was admitted to the local hospital in 2019 due to chest discomfort. He had mild tachypnoea and wheezing. Upon physical examination, his heart was found to be enlarged without any obvious cardiac murmur. Cardiac percussion also revealed an enlargement of the heart, and further echocardiography confirmed a diagnosis of a ‘dual-chamber left ventricle’. No other cardiac or systemic abnormalities were observed. In January 2022, the patient came to our hospital for further diagnosis and treatment. The laboratory results including coagulation testing showed no obvious abnormality. The 24-hour Holter monitor revealed a sinus rhythm with a left bundle branch block (I°). The bedside chest X-ray indicated an abnormal protrusion of the left margin of the heart. Transthoracic echocardiography showed that the left ventricle was divided into main and accessory chambers by a thick muscle bundle in the middle of the left ventricular cavity. Cardiac magnetic resonance (CMR) imaging confirmed this, and additionally found a giant thrombus in the accessory cavity.

Discussion
A DCLV is an extremely rare congenital heart disease that is often asymptomatic and undiagnosed until adulthood. The aetiology of DCLV is still unclear; however, some reports have suggested that it may be related to a hypoplasia of the regional myocardial intra-trabecular sinusoids or an intra-myocardial aneurysm during the embryonic period. Additionally, some cases have indicated that DCLV may be a subtype of genetic cardiomyopathies. A DCLV is characterized by a subdivision of the left ventricle into two chambers by an abnormal septum or by muscle bands. This case report introduces a patient with DCLV and a giant thrombus, in which CMR imaging plays an important role in both diagnosis and differential diagnosis.
Confusion in a patient with premature ventricular complexes originating in the left ventricular summit
Authors: Luani Blerim , Schmeisser Alexander , Wiemer Marcus , Braun-Dullaeus Rüdiger C 
Published: March 2023

AbstractBackgroundPremature ventricular complexes (PVCs) originating in the ventricular outflow tracts are mostly of benign character.Case SummaryWe describe a rare case of pulmonary hypertension with severe hypoxaemia and confusion caused by a significant mitral regurgitation (MR) during PVC originating in the left ventricle summit. After successful PVC ablation, all above-mentioned clinical parameters had normalized.DiscussionPremature ventricular complexes originating in the outflow tracts should be considered as a potential though rare cause of severe MR and pulmonary hypertension.
Cardiovascular disease risk assessment using a deep-learning-based retinal biomarker: a comparison with existing risk scores
Authors: Yi Joseph Keunhong , Rim Tyler Hyungtaek , Park Sungha , Kim Sung Soo , Kim Hyeon Chang , Lee Chan Joo , Kim Hyeonmin , Lee Geunyoung , Lim James Soo Ghim , Tan Yong Yu , Yu Marco , Tham Yih-Chung , Bakhai Ameet , Shantsila Eduard , Leeson Paul , Lip Gregory Y H , Chin Calvin W L , Cheng Ching-Yu 
Published: March 2023

Abstract

Aims
This study aims to evaluate the ability of a deep-learning-based cardiovascular disease (CVD) retinal biomarker, Reti-CVD, to identify individuals with intermediate- and high-risk for CVD.

Methods and results
We defined the intermediate- and high-risk groups according to Pooled Cohort Equation (PCE), QRISK3, and modified Framingham Risk Score (FRS). Reti-CVD’s prediction was compared to the number of individuals identified as intermediate- and high-risk according to standard CVD risk assessment tools, and sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated to assess the results. In the UK Biobank, among 48 260 participants, 20 643 (42.8%) and 7192 (14.9%) were classified into the intermediate- and high-risk groups according to PCE, and QRISK3, respectively. In the Singapore Epidemiology of Eye Diseases study, among 6810 participants, 3799 (55.8%) were classified as intermediate- and high-risk group according to modified FRS. Reti-CVD identified PCE-based intermediate- and high-risk groups with a sensitivity, specificity, PPV, and NPV of 82.7%, 87.6%, 86.5%, and 84.0%, respectively. Reti-CVD identified QRISK3-based intermediate- and high-risk groups with a sensitivity, specificity, PPV, and NPV of 82.6%, 85.5%, 49.9%, and 96.6%, respectively. Reti-CVD identified intermediate- and high-risk groups according to the modified FRS with a sensitivity, specificity, PPV, and NPV of 82.1%, 80.6%, 76.4%, and 85.5%, respectively.

Conclusion
The retinal photograph biomarker (Reti-CVD) was able to identify individuals with intermediate and high-risk for CVD, in accordance with existing risk assessment tools.
Combining the third molar mineralization to further improve the accuracy of the Kvaal’s method in dental age estimation of subadults in northern China
Authors: Qu Weifeng , Cai Jifeng , Jiang Bowei , Wen Dan , He Wei , Wang Chudong , Xing Hao , Yang Zedeng , Li Jienan , Zha Lagabaiyila , Liu Ying , Zhou Jian 
Published: March 2023

Abstract

The morphological changes based on deposition of secondary dentin and mineralization of the third molar have been proven to be related to chronological age. However, Kvaal’s method on the theory of deposition of secondary dentin was controversial with respect to dental age estimation in the recent research. The aim of this study was to combine the parameters of Kvaal’s method with relatively high correlation coefficients and mineralization stages of the third molar to improve the accuracy of predicting the dental age of subadults in northern China. A total of 340 digital orthopantomograms of subadults aged from 15 to 21 years were analysed. A training group was used to test the accuracy of the original Kvaal’s method and to establish novel methods for subadults in northern China. A testing group was used to compare the accuracy of the newly established methods with the Kvaal’s original method and with published method specifically used in northern China. To increase the feasibility of our estimation model, we combined the mineralization of the third molar to build a combined specific formula. The results showed that the combined specific model increased the coefficient of determination to 0.513, and the standard error of the estimate was reduced to 1.482 years. We concluded that the combined specific model based on the deposition of secondary dentin and mineralization of the third molar could improve the accuracy of dental age assessment of subadults in northern China.

Key Points