bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing COVID-19 Vaccine Hesitancy, Confidence, and Public Engagement: A Global Social Listening Study
Authors: Hou Zhiyuan , Tong Yixin , Du Fanxing , Lu Linyao , Zhao Sihong , Yu Kexin , Piatek Simon J , Larson Heidi J , Lin Leesa 
Published: May 2021

Background
Monitoring public confidence and hesitancy is crucial for the COVID-19 vaccine rollout. Social media listening (infoveillance) can not only monitor public attitudes on COVID-19 vaccines but also assess the dissemination of and public engagement with these opinions.

Objective
This study aims to assess global hesitancy, confidence, and public engagement toward COVID-19 vaccination.

Methods
We collected posts mentioning the COVID-19 vaccine between June and July 2020 on Twitter from New York (United States), London (United Kingdom), Mumbai (India), and Sao Paulo (Brazil), and Sina Weibo posts from Beijing (China). In total, we manually coded 12,886 posts from the five global metropolises with high COVID-19 burdens, and after assessment, 7032 posts were included in the analysis. We manually double-coded these posts using a coding framework developed according to the World Health Organization’s Confidence, Complacency, and Convenience model of vaccine hesitancy, and conducted engagement analysis to investigate public communication about COVID-19 vaccines on social media.

Results
Among social media users, 36.4% (571/1568) in New York, 51.3% (738/1440) in London, 67.3% (144/214) in Sao Paulo, 69.8% (726/1040) in Mumbai, and 76.8% (2128/2770) in Beijing indicated that they intended to accept a COVID-19 vaccination. With a high perceived risk of getting COVID-19, more tweeters in New York and London expressed a lack of confidence in vaccine safety, distrust in governments and experts, and widespread misinformation or rumors. Tweeters from Mumbai, Sao Paulo, and Beijing worried more about vaccine production and supply, whereas tweeters from New York and London had more concerns about vaccine distribution and inequity. Negative tweets expressing lack of vaccine confidence and misinformation or rumors had more followers and attracted more public engagement online.

Conclusions
COVID-19 vaccine hesitancy is prevalent worldwide, and negative tweets attract higher engagement on social media. It is urgent to develop an effective vaccine campaign that boosts public confidence and addresses hesitancy for COVID-19 vaccine rollouts.
Incremental planning of the location of public health facilities in a rural region
Authors: Otun Olayinka Waziri 
Published: May 2021

Some people in rural areas are often excluded from using health facilities in developing nations due to political interference in facility location decision-making. Limited attention has been paid in the literature to promoting inclusiveness in public facilities usage in developing nations. Therefore, this study was designed to examine the access to Primary Health Centres (PHCs) in the Yewa region, Nigeria. Data on the 509 settlements and 91 PHCs in the Yewa region were obtained from government directories. The p-median Location-Allocation model was used for data analyses. The study showed that the number of PHCs increased and access to them improved in the Yewa region between 1991 and 2019. It was also shown that inclusiveness in facilities could be promoted by optimally adding new PHCs. The study assessed the effectiveness of past locational decisions, similar to other studies in Bangladesh and India, and revealed that the military administration performed better than the civilian administration in facility location decision-making between 1991 and 2019. The study showed how new facilities could be optimally located to improve access and inclusiveness in public usage.
Verification of the numerical hydrodynamic model of the Kola bay
Authors: Anshakov Alexander S. , Kantarzhi Izmail G. 
Published: May 2021

Introduction. This manuscript discusses the verification of wind fields from the NCEP-CFSR reanalysis data and the COASTOX model for calculating the fields of coastal currents, which is part of the hydrodynamic model of currents and wind waves in the Kola Bay.
Materials and methods. The comparison of the calculation results with the measurement data was carried out based on both a graphical comparison of the time curves of the analyzed parameters, and in the form of statistical processing results, with the construction of regression relationships between the measured and calculated wind and current characteristics.
Results. The correctness of the results obtained in the calculations using numerical models has been evaluated. To verify the wind fields from the NCEP-CFSR reanalysis, they were compared with the wind measurement data obtained from the HMS Murmansk, Polyarnoe, and Teriberka. High values of the correlation coefficient were obtained, which confirm the validity of using the NCEP-CFSR reanalysis data as the input data of the hydrodynamic model. For comparison with observations, the COASTOX model simulated currents in the Kola Bay under the influence of tidal forces and atmospheric forcing for a period of 195 days, from August 1, 2015 to February 11, 2016. The results obtained demonstrate that the current model correctly reproduces the reversal character currents in the middle knee of the Kola Bay and predicts changes in sea level quite accurately.
Conclusions. The study shows that the hydrodynamic model of the Kola Bay solves the problem of a reliable forecast of the wave and current regime in the design of port facilities.
Evaluation of Antioxidant Activity of Cedrela toona Roxb. Leaf Extracts
Authors: Shah Kinjal H , Patel Piyush M 
Published: May 2021

Antioxidant potency of fruits of Cedrela toona Roxb. crude methanol and its fractionated extracts (hexane, acetone and water) have been investigated, employing three different established in vitro testing systems, such as scavenging activity on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, reducing power assay and β-carotene method. The methanol extract of fruits of Cedrela toona Roxb. showed the best DPPH scavenging activity with the lowest EC 50 34 μg/ml, followed by the acetone (EC 50 39 μg/ml), hexane (EC 50 48 μg/ml) and water extract (EC 50 54 μg/ml). The reducing power of Cedrela toona Roxb. fruit extracts increased steadily with increasing concentrations and varied significantly with different concentrations. The methanol and acetone extracts appeared to possess the highest significant reducing activity among the extracts. The stronger reducing power in the methanol and acetone extracts was probably due to the concentration of antioxidant compounds like flavonoids and phenolics in the extract. In the β-carotene bleaching assay, the antioxidant activities of all the fruits extracts gradually increased with increasing concentration of the extracts and varied significantly with different concentrations. The water extract showed the lowest significant antioxidant activity, while the methanol extract showed the highest significant antioxidant activity. The high antioxidant activity of methanol extract tested using β-carotene model may be correlated with the high phenolic content of the methanol extract. In conclusion, antioxidant study suggested that fruits of Cedrela toona Roxb. are potential source of natural antioxidants. However, further investigations on in vivo antioxidant activities are highly recommended.
In the present study, the antioxidant potency of Cedrela toona Roxb. crude methanol and its fractionated extracts (hexane, acetone and water) have been investigated, employing three different established in vitro testing systems, such as scavenging activity on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, reducing power assay and β-carotene method. There is no antioxidant study reported for Cedrela toona Roxb.Thus, antioxidant activity of Cedrela toona Roxb. was evaluated as it had not been determined previously.
Development and In-Vitro Evaluation of Budesonide Mucoadhesive Microspherefor Pulmonary Drug Delivery
Authors: Journal Jddtadmin 
Published: May 2021

Thepurpose of the study was to develop and evaluatemucoadhesive microspheres of Budesonide for pulmonary drug delivery systemhaving prolonged residence time and sustained drug release. Microspheres were prepared by emulsificationsolvent evaporation technique using HPMC, carbopol as polymers in varying ratios. The microspheres were evaluated for its percentage yield, drug entrapment efficiency, particle size and shape, in vitro mucoadhesion study and in vitro drug release studies.The FTIR studies revealed no chemical interaction between the drug molecule and polymers and found that drug was compatible with used polymer. The mucoadhesive microspheres showed particle size, drug entrapment efficiency and yield in the ranges of148 - 164 μm, 68.0 - 85.0%and67.52 - 87.25% respectively. In vitro drug release and mucoadhesion study confirms thatformulationF5 was the best formulation as it releases 81.8 % at the end of 12 hr. in controlled manner and percentage mucoadhesion of 75.2 % after 10 hr. This confirms the developed budesonidemucoadhesive microspheres are promising for pulmonary drug delivery system.

Keywords: Budesonide, Mucoadhesion, Microspheres, Drug entrapment efficiency.
Development and Validation of Q-Absorbance Ratio by UV-Spectrophotometric Method for Simultaneous Estimation of Metformin and Empagliflozin in Bulk and Combined Dosage Form
Authors: Sharma Pushpendra , Kosanam Srinivasarao , Rao Surendra Singh 
Published: May 2021

Advantages of simultaneous stability studies are the identification of new degradation products, to understand mutual induction and/or inhibition of rates of degradation and to analyze the degradation products of both drugs. Various ultraviolet spectroscopic and high performance liquid chromatographic assay methods were reported for the estimation of metformin, sitagliptin, pioglitazone, glimepiride and simvastatin individually and in combination with other drugs. All the above reported methods were based on the estimation of metformin, sitagliptin, pioglitazone, glimepiride and simvastatin alone or in combination with other drugs. The degradation products were generated and successfully separated by the developed and validated high performance liquid chromatographic methods for the estimation of the selected anti-diabetic drug combinations. The aim of the study was to develop and validate of Q-Absorbance Ratio UV-Spectrophotometric Method for Simultaneous Estimation of Metformin and Empagliflozin in Bulk and Combined Dosage Form.
Keywords: Metformin, Method Development, Validation, Empagliflozin, UV-Spectrophotometer.
The case of left loin pain and aneurysm of the splenic artery
Authors: El-Reshaid Kamel , Al-Bader Shaikha , Markova Zhaneta 
Published: May 2021

True splenic artery aneurysms (SAA) are rare, but potentially fatal, lesions. They account for 60% to 70% of patients diagnosed with visceral artery aneurysms. They should be differentiated from pseudo ones since the etiology is different. They risk of rupture is high if diameter is > 2 cm and in child-bearing years. In this case report; we describe an encounter of SAA in a patient presenting with severe left loin pain and shock due to acute pyelonephritis. The aneurysm was 1.2 cm and was partially thrombosed and calcified indicating its stability and chronicity. The etiology, types and management of SAAs is discussed.
Keywords: abdominal pain, aneurysm, pseudoaneurysm, rupture, splenic artery.
Antibacterial Activity of Haematococcus pluvialis Crude Astaxanthin Extract
Authors: Rather Ashaq Hussain , Singh Surendra , Choudhary Sameer 
Published: May 2021

H. pluvialis is the potential source of natural astaxanthin, which is considered as super antioxidant. In the present investigation, astaxanthin was extracted from the encysted cells of H. pluvialis with acetone, methanol, DMSO and hexane, the crude extracts were tested for four strain (Escherichia coli, Salmonella typhi, Vibrio cholera and Staphylococcus aureus)of bacteria for the antibacterial activity. Highest antibacterial activity was observed as 10.2 ±0.20 mm extracted with acetone on Escherichia coli while as least antibacterial activity was found as6.1±0.0 mm extracted with hexane on Vibrio cholera.
Keywords: Haematoccoccus pluvialis; Astaxanthin; Antibacterial.
Narcissus Garden, corpo-imagem: território insólito entre o simbólico e o imaginário de Yayoi Kusama
Authors: Pereira Adriana Camargo 
Published: May 2021

Resumo O presente estudo apresenta a obra Narcissus Garden de Yayoi Kusama em dois momentos: na sua primeira edição, em 1966 e em um segundo momento, no ano de 2009 em que a mesma recebe um novo formato e caráter permanente no instituto de arte contemporânea, Inhotim. O texto sugere um diálogo sobre a obra diante dos binômios: espetacularização da imagem do corpo e os padrões dominantes de representação do corpo narcísico; a construção imagética do Eu e do Outro através da imagem especular. E termina com a problemática suscitada entre a presença tanto de um corpo imaginário, quanto simbólico como território insólito instaurado por meio das perturbações e obsessões do inconsciente da artista, convertido, em prática artística que determinam a marca intrínseca da sua escritura.
Prolonged survival after laser interstitial thermal therapy in glioblastoma
Authors: Khan A. Basit , Matsuoka Carlos Kamiya , Lee Sungho , Rahman Maryam , Rao Ganesh 
Published: May 2021

Background:
Glioblastoma (GBM) is the most common primary malignant brain tumor in adults. Management includes surgical resection followed by chemoradiation, and prognosis remains poor. Surgical resection is not possible for some deep-seated or eloquent tumors. Laser interstitial thermal therapy (LITT) has emerged as a new, minimally invasive surgical option for deep-seated GBM.

Case Description:
We report a case of newly diagnosed thalamic GBM managed with LITT followed by radiation and chemotherapy.

Conclusion:
The patient remains well at 50-month post-LITT, indicating a potentially unique durability of LITT treatment in GBM.
PubMed-indexed neurosurgical research productivity of Iraq-based neurosurgeons
Authors: Hoz Samer S. , Al-Sharshahi Zahraa F. , Esene Ignatius N. , Dolachee Ali A. , Neamah Ali M. , Al-Khafaji Aktham O. , Al-Dhahir Mohammed A. , Sadik Hatem 
Published: May 2021

Background:Research is a central component of neurosurgical training and practice and is increasingly viewed as a quintessential indicator of academic productivity. In this study, we focus on identifying the current status and challenges of neurosurgical research in Iraq.Methods:An online PubMed Medline database search was conducted to identify all articles published by Iraq-based neurosurgeons between 2003 and 2020. Information was extracted in relation to the following parameters: authors, year of publication, author’s affiliation, author’s specialty, article type, article citation, journal name, journal impact factor, and topic. This data were then tabulated and analyzed.Results:Between 2003 and 2021, a total of 52 PubMed indexed papers were published from Iraq. All publications have been clustered in the period of 2012–2020. From 2012 to 2016, only four papers were published, one per year. The number of publications increased from 2017 to 2021, with an average of 12 publications per year. The most common article type was “case reports” (n= 14). Neurotrauma (n= 10) and vascular neurosurgery (n= 10) were the two most common topics. Most of the studies came from the city of Bagdad (n= 46), with just nine studies coming from peripheral governorates. The Neurosurgery Teaching Hospital in Bagdad was the neurosurgery center with the highest research output (n= 38).Conclusion:The number of publications per year has been showing a, relatively, promising trend since 2012. However, to promote sustained growth in academic productivity, a strategic plan that acknowledges the political, financial, and health-system-related challenges are urgently needed.
Sistem Pengiriman Data Suhu Dan Gambar Berbasis IoT
Authors: Pertiwi Nadia , Firdaus Ahmad Riyad 
Published: May 2021

Pengiriman data suhu dan gambar merupakan faktor penting dalam suatu proses kerja alat yang sedang beroperasi. Salah satu metode pengirimannya adalah dengan sistem online. Pada pengiriman data suhu dan gambar perlu diperhatikan juga kebutuhan software maupun hardware sehingga bisa dilakukan pengontrolan secara otomatis untuk mencegah terjadinya ketinggalan informasi. Sebelum dilakukannya pengontrolan, perlu diketahui karakteristik suhu lingkungan dan camera yang digunakan pada area alat tersebut.
Oleh karena itu, pengujian ini bertujuan merancang sistem pengiriman data suhu dan gambar secara otomatis. Untuk mendapatkan hasil data dan gambar yang sesuai, alat tersebut menggunakan sensor suhu DS18B20 dan Modul Camera Raspberry Pi berbasis Internet Of Thing (IoT). Data sensor dan hasil gambar diolah menggunakan Raspberry Pi Model B kemudian dikirim melalui e-mail melalui jaringan internet dan realtime database sehingga dapat diakses dimanapaun dan kapanpun.
Pengujian ini dilakukan dengan melakukan kalibrasi dan validasi pembacaan sensor suhu DS18B20 pada saat pengambilan data suhu. Hasil pengujian sensor selisih pembacaan suhu antara sensor dengan termometer sebesar 0,6. Hasil pengujian menunjukan bahwa data sensor dan gambar dapat terkirim secara realtime pada e-mail menggunakan jaringan internet dengan delay rata-rata sebesar 2 detik.
Kata Kunci: Sensor Suhu DS18B20, Modul Camera Raspberry Pi, Raspberry Pi
PENGARUH PERSEPSI KEMUDAHAN DAN PERSEPSI MANFAAT TERHADAP SIKAP PENGUNAAN E-WALLET DI KOTA BANDUNG 2020
Authors: Kusuma Aldo Putra , Syahputra Syahputra 
Published: May 2021

Abstrak
Penelitian ini didasari dari latar belakang fenomena terkait. Dengan E-Wallet konsumen bisa melakukan hal seperti mentransfer uang ke rekening bank yang diinginkan ataupun ke sesama E-Wallet. Konsumen juga bebas melakukan pembayaran atas pembelian yang dilakukan kapanpun dan dimanapun. Penelitian kali ini bertujuan untuk mengetahui pengaruh kemudahan dan manfaat yang dirasakan dari penggunaan E-Wallet tersebut dengan menggunakan model TAM (Technology Acceptance Model) untuk membahas sebuah sistem atau teknologi dengan objek E-Wallet. Penelitian ini menggunakan metode kuantitatif deskriptif dengan jenis penelitian analisis regresi linier berganda. Pengambilan sampel dilakukan dengan metode non probability sampling jenis purposive sampling. Berdasarkan hasil penelitian pada analisis deskriptif, masing – masing variable menempati kategori sangat baik yang artinya semua pernyataan sangat dimengerti oleh responden. Pada hasil uji t dan uji F variable Persepsi Kemudahan (X1) dan Persepsi Manfaat (X2) terhadap Sikap Penggunaan (Y) memperoleh kesimpulan bahwa variable X1 dan X2 berpengaruh positif dan signifikan terhadap variable Y secara parsial maupun simultan. Dan 45,2% sikap penggunaan dipengaruhi oleh persepsi kemudahan dan persepsi manfaat, 54,8% di pengaruhi oleh faktor lain.
Kata Kunci: Persepsi Kemudahan, Persepsi Manfaat, Sikap Penggunaan, TAM (Technology Acceptance Model), E-Wallet
Predictors of inadequate bowel preparation using two liters of polyethylene glycol for colonoscopy
Authors: Parajuli Anuj , KC Niranjan 
Published: May 2021

Background: Inadequate bowel preparation can result in missed pathological lesions and cancellation of procedures thereby increasing the cost and delay in the diagnosis.
Objectives: Thes aim of the study was to identify the potential predictors of inadequate bowel preparation using 2 liters of polyethylene glycol solution.
Methodology: A prospective study was done, which included 138 consecutive patients who underwent colonoscopy over a period of 6 months. Patient’s demographics, medical history, and preparation quality were collected and compared. Factors associated with inadequate bowel preparation were identified by univariate statistics and multivariate logistical regression analysis.
Results: Out of 138 colonoscopy procedure, 119 (86.2%) preparations were adequate and 19 (13.8%) were inadequate. The mean age of the patient was 52.62 (SD ±10.51) years. Out of which, 82 (59.4%) were male and 56 (40.6%) were female. In the multivariate regression analysis, constipation [adjusted OR 8.55, 95% CI 1.79-41.67] and non-compliance [adjusted OR 58.82, 95% CI 5.99-500] were independently associated with inadequate bowel preparation.
Conclusion: Constipation, non-compliance, overweight, neurological disorders like stroke, dementia and age >60 years were associated with inadequate bowel preparation. Early identification of patients with a high risk of inadequate preparation can be salvaged with change in bowel cleaning strategy.
Formation of Highly Corrosion Resistant Alloys using Laser Surface Alloying
Authors: Sridhar K. , Deshmukh M.B. , Khanna A.S. 
Published: May 2021

Abstract
Stainless steels such as AISI Type 304 SS are being used for seawater piping applications due to their desirable mechanical properties and good weldability. However, they are susceptible to pitting and crevice corrosion in chloride bearing environments. Thus a new generation of highly alloyed stainless steels such as Avesta 254 SMO with high molybdenum contents has been developed for improved localised corrosion resistance in seawater. These steels are also susceptible to the formation of undesirable secondary phases such as sigma and chi which degrades both mechanical and corrosion properties. Alternatively, the main alloying element can be surface alloyed onto the surface of a suitable substrate by laser surface alloying. In this paper, austenitic stainless steel surface alloys of varying molybdenum contents have been formed on 304 SS by laser surface alloying and characterised by optical and scanning electron microscopy. The corrosion behaviour was ascertained by electrochemical and immersion tests.
Oxidation Properties of NIAI Intermetallic Coatings Prepared by High Velocity Oxy-Fuel Thermal Spraying
Authors: Hearley J.A. , Little J.A. , Sturgeon A.J. 
Published: May 2021

Abstract
A reaction-formed NiAl intermetallic compound (IMC) powder has been deposited as a coating onto low carbon steel test coupons by the High Velocity Oxy-Fuel (HVOF) process using both gaseous and liquid fuels. The microstructure of this coating has been examined using scanning electron microscopy and x-ray diffraction and was found to depend on spraying conditions. Oxidation tests on the coating in air, between the temperatures of 800°C-1200°C, revealed that an α-alumina (Al2O3) scale formed on the coating's surface. At 1200°C, a nickel spinel (NiO/NiAl2O4) and haematite (Fe2O3) phases were observed. Diffusion studies were performed to calculate an activation energy for iron ion diffusion in NiAl.
APS and HVOF Coatings Alternative to Hard Chromium, A Tribological Approach
Authors: J.P. Duhamel , Y.M. Chen , Reby J. , Nestler M. 
Published: May 2021

Abstract
The use of thermal spraying processes as an alternative to industrial chromium plating has significantly increased in the past years. Advanced processes, such as APS and HVOF, have proven their efficiency with thick coating in chromium plating replacement, with cost advantage for coatings thicker than 5/10 mm. This article is the synthesis of different trials made with plasma and HVOF coatings. It includes the selection of materials for trial; a description of trial's equipment; friction and wear results; properties and metallography; and the cost comparison of plasma spraying and HVOF with other processes. It has been shown that thermal spray coatings, both APS and HVOF, can be used as chromium plating alternatives, with advantages in terms of wear resistance.