bluuebunny/crossref_metadata_2025 huggingface dataset:
Implications for the Formation of (155140) 2005 UD from a New Convex Shape Model
Authors: Kueny Jay K. , Chandler Colin Orion , Devogéle Maxime , Moskovitz Nicholas , Pravec Petr , Kučáková Hana , Hornoch Kamil , Kušnirák Peter , Granvik Mikael , Konstantopoulou Christina , Jannsen Nicholas E. , Moran Shane , Siltala Lauri , Fedorets Grigori , Ferrais Marin , Jehin Emmanuel , Kareta Theodore , Hanuš Josef
Published: March 2023

(155140) 2005 UD has a similar orbit to (3200) Phaethon, an active asteroid in a highly eccentric orbit thought to be the source of the Geminid meteor shower. Evidence points to a genetic relationship between these two objects, but we have yet to fully understand how 2005 UD and Phaethon could have separated into this associated pair. Presented herein are new observations of 2005 UD from five observatories that were carried out during the 2018, 2019, and 2021 apparitions. We implemented light curve inversion using our new data, as well as dense and sparse archival data from epochs in 2005–2021, to better constrain the rotational period and derive a convex shape model of 2005 UD. We discuss two equally well-fitting pole solutions (λ = 116.°6, β = −53.°6) and (λ = 300.°3, β = −55.°4), the former largely in agreement with previous thermophysical analyses and the latter interesting due to its proximity to Phaethon’s pole orientation. We also present a refined sidereal period of P
sid = 5.234246 ± 0.000097 hr. A search for surface color heterogeneity showed no significant rotational variation. An activity search using the deepest stacked image available of 2005 UD near aphelion did not reveal a coma or tail but allowed modeling of an upper limit of 0.04–0.37 kg s−1 for dust production. We then leveraged our spin solutions to help limit the range of formation scenarios and the link to Phaethon in the context of nongravitational forces and timescales associated with the physical evolution of the system.
Influences on Infrared Spectra of Benzene Ices for Titan, Comets, and Beyond: Annealings, Artifacts, and Isosbestic Points
Authors: Hudson Reggie L. , Gerakines Perry A.
Published: March 2023

Infrared (IR) spectra are needed for both laboratory and observational studies of extraterrestrial ices, both within the solar system, such as for trans-Neptunian objects, comets, and Titan, and in the interstellar medium. Here we present new transmission-IR measurements on solid benzene (C6H6), the simplest common aromatic compound. Spectra are shown with a greater combination of higher resolutions and temperatures than found in the literature. The influences of both warmings and annealings on amorphous benzene are described, and comparisons are made of the IR spectra of warmed and cooled crystalline benzene. Reversible variations with temperature are noted for several IR bands of crystalline benzene, with a suggestion for their use as a possible thermometer for remote sensing of extraterrestrial environments. Comparisons are made to both recent and older literature results, and an artifact produced by high vapor-phase condensation rates is identified. New density measurements are reported for crystalline benzene and used, along with IR-forbidden transitions, to identify amorphous and crystalline ices. It is suggested that differences in spectra of crystalline benzene ices at the same temperature do not necessarily imply partial crystallization.
BRICS and the USA: Labor and Employment Support During and After the COVID-19 Pandemic
Authors: Beletskaya Maria , Zotova Elena
Published: March 2023

This article concerns labor and employment support policies undertaken by national governments in 2020-2022, during the global COVID-19 pandemic. It is focused on the experience of the BRICS countries but also highlights the labor and employment support policies in the USA, a country with one of the largest economies and advanced economic development. The COVID-19 outbreak has posed unprecedented challenges for all countries. The key objectives of all governments were to save human lives and prevent the spread of the infection. While the containment measures used by different countries were mostly similar, the programs and policies aiming to support workers were country-specific. The authors examine two types of labor support measures aimed at mitigation of the COVID-19 consequences: direct cash transfers to sustain workers’ incomes and business support activities. The analysis reveals that the success of these measures could depend, first, on how timely they were, second, whether they were in line with the long-term objectives in labour market development and, third, on the quality of governments’ collaboration with businesses and trade unions. The COVID-19 pandemic has cast a long shadow. As the BRICS countries plan to focus their labor and employment policies on high-quality jobs, human-centered development, inclusion and protection of workers’ rights they should address the consequences of COVID-19 together with other challenges, such as technological transformation, climate change and demographic issues.
Construction of vectorial moments via direction curves
Authors: Nurkan Semra Kaya , Güven İlkay Arslan
Published: March 2023

In a recent paper Tunçer [14] described and examined the moment vectors (T -dual, N-dual, B-dual curve) of the curve with respect to the origin of the vector by using T(s), N(s), B(s) and the position vector of the curve. With the inspiration this paper provided, we define some new associated curves called dual-direction curves as integral curves of a vector field in this study. They are generated with the help of vectorial moments of a space curve in three-dimensional Euclidean space. We attain some connections between the Frenet apparatus of dual-direction curves and main curves. With the help of these dual-direction curves, certain ways to construct helices are determined. Finally, we exemplify these curves with their figures.
Does industrialization trigger carbon emissions through energy consumption? Evidence from OPEC countries and high industrialised countries
Authors: Idowu Ayodele , Ohikhuare Obaika Micheal , Chowdhury Munem Ahmad
Published: March 2023

This study investigated the effect of Industrialization on carbon emissions through energy consumption for a panel of eight Organization of the Petroleum Exporting Countries (OPEC) and nine High Industrialised Countries over the period 1985 to 2020; the study employs the first generation and second-generation Unit root tests. The study further adopts the use of the Panel Autoregressive Distributed Lag Model, and Common Correlated Effect pooled mean group to estimate the parameters of the model for OPEC countries and High Industrialised Countries, respectively. In addition, the Dumitrescu-Hurlin Granger causality test is conducted to infer the direction of causality among the variables. The causality test result reveals that, in OPEC, energy consumed during industrial activity is not enough to cause carbon emission and carbon emission does not cause industrialisation to interact with energy consumption. Also, for highly industrialised countries, interaction of energy consumption and industrialization causes carbon emission, but carbon emission does not cause the interaction of energy consumption and industrialization. The estimated model shows that the interactive effect of Industrialization and energy consumption has no significant influence on carbon emissions in OPEC countries in the short and long run. In contrast, foreign direct investment and economic growth have a positive and significant effect on carbon emissions in the short run. However, for highly industrialised countries the study found that the interactive effect of energy industrialization and energy consumption has a positive and significant effect on carbon emissions in the short run. It is apparent from the study that energy consumption for industrial activities, particularly in highly industrialised countries, causes carbon emission and such policy makers should formulate policy that necessitate the use of green energy for industrial activities to improve environmental quality.
Obligatory Gifts: An Essay on Forgiveness
Authors: Attie-Picker Mario
Published: March 2023

The paper attempts to bridge a gap between two prevalent conceptions of forgiveness that are widely thought to be in opposition. On one side of things, forgiveness is often characterized as a gift. The image is an ever-present one, enduring in popular culture no less than in the sober prose of analytic philosophy. But we also talk of forgiveness as a moral imperative, an important, even vital aspect of our moral life. I argue that, contrary to what may at first appear, the two sides are not in tension, and each gets at something important about the nature of forgiveness. Forgiveness is indeed a gift but, much like actual gifts, it is one we are sometimes required to give.
Portugal na Segunda Guerra Mundial: neutralidade e comércio estratégico de conservas de peixe, 1939-1945
Authors: Henriques Francisco
Published: March 2023

Entre 1939 e 1945, as conservas de peixe ocuparam o primeiro lugar no valor das exportações portuguesas. Este facto, nem sempre reconhecido, permite-nos revisitar o problema da neutralidade portuguesa durante o conflito mundial e destacar a relevância do comércio externo nas relações mantidas com os países beligerantes. Neste artigo argumentamos que o comércio de conservas de peixe foi um importante agente da neutralidade que permitiu alcançar um equilíbrio nas relações internacionais. Nos anos decisivos do conflito, as exportações de conservas sofreram uma bipolarização entre os países Aliados e os do Eixo. Para manter uma produção industrial regular, o estado foi obrigado a garantir o fornecimento e a distribuição das matérias-primas e celebrar contratos de vendas exclusivos. A partir de documentação do Instituto Português de Conservas de Peixe, procuramos demonstrar como a guerra permitiu um aprofundamento da coordenação económica dirigida pelo estado.
Development of Heat-Resistant Composite Foam Material
Authors: Chukhlanov V.Yu. , Selivanov O.G. , Ilina M.E.
Published: March 2023

The paper is devoted to the research results dealing with the development of heat-resistant composite cellularmaterial, where polymer matrix is based on10% polycarbosilanesolution in xylene, hollow microspheres and fibrous mineral material are used as fillers. In this study, the used hollow microspheres are corundum and aluminosilicate microspheres, and fibrous filler is quartz fiber. According to the experiments, the best results refer to thecomposite foam samples, containing hollow corundum microspheres as filler. The developed composite foam is characterized with low thermal conductivity and density, good physical and mechanical properties,when polymer binder content was 20-70% wt., corundum hollow microspheres - 20-60% wt., and quartz fiber material - 10-50% wt. Thus, the developed composite foam might be recommended for the applicationin high-tech industries, including heat and power engineering, nuclear power and aircraft construction as high-temperature thermal insulation material.
Material Parameter Assessment for Noise-Absorbing Devices in Shoe Heels
Authors: Belitskaya O.A. , Kostyleva V.V. , Rykova E.S. , Panferova E.G. , Sokolovskiy A.R.
Published: March 2023

Noise is a mixture of sounds of various frequencies that irritate human beings. Today, noise is considered an “invisible” pollutant that raises great concern, especially in cities. Prolonged exposure to noise, either in everyday life or at the workplace, may cause health problems including high blood pressure and heart diseases. Noise may have negative impacts on reading, attention, problem-solving, and memory. One of the solutions to this problem is the reduction of the decibel level (dB).
This article studies the noise-absorbing characteristics of polymer materials used in shoe sole production. The authors suggest producing noise-absorbing caps from the FLEX material. Additive technologies were used in cap production. This article presents the results of the research on the use of the FLEX plastic for noise-absorbing shoe heel caps. When using the shoes with heel caps made of FLEX plastic, the noise level on porcelain stoneware reduced 5.61 times, and 12.79 times on laminate flooring. The authors prove that noise-absorbing heel caps can reduce the noise levels at workplaces and public organizations, which may have a positive effect on the environment.
Experimental Study of Fiber Orientation on the Mechanical Properties of Glass Fiber Reinforced Thermoplastic Composites
Authors: Sathishkumar S.D.
Published: March 2023

This research work aims to perform a comparative study on the effect of fiber orientation distribution (FOD) on the mechanical properties of composite laminates for aircraft and automobile structure. The objective of this project works is to use an analysis method to study the effect of significant parameters namely, with and without orientation on the glass fibre epoxy composites. The experimental work is used to investigate the mechanical behavior and to examine the properties with respect to fibre orientation on the composite laminates. The glass fibre orientation characteristics for the composite laminates is considered since they affect the strength of the specimen laminates. In this connection, the specimens were fabricated with different orientations and undergone for mechanical testing like tensile, compression and impact tests with Data Acquisition System. The experimental results indicate that the specimens with orientation provide more strength, high stiffness and good toughness than the normal specimens without orientation.
Lighting Audit for Energy Conservation and Safety and Health in the Academic Office Building
Authors: Zailan Roziah , Al Biajawi Mohammad Ismail Yousef , Md Jaafar Mohd Faizal , Ghazali Norhaiza , Shahid Khairul Anuar
Published: March 2023

A lighting audit is an investigational process that measures conditions against standards to determine any lighting improvement measures. The objective of this study is to conduct a lighting audit to evaluate the level of existing lighting in the work environment of the academic faculty building. The lighting audit for the faculty buildings consists of a walk-through audit, lighting desktop work, field data measurement, and lighting analysis. The illuminance level cross-checks with the MS 1525:2019 and the lighting guideline from the Department of Safety and Health Malaysia. The illuminance analysis finding denotes most areas have violated the standards and are in overlit status. Few lighting conservation measures were proposed and prioritized the LED lighting installation. Economic analysis for retrofitting of LED lighting generates energy saving at 30%, a return on investment of two months, and about 6.60-tonne CO2 emission reduction annually. The LED lighting installation shows attractive investment and has good potential at higher luminous efficacy around 40-256 Lm/Watt for the respective areas.
Performance and Mechanical Characterization of Tufted and Untufted Woven Pine Apple Leaf Fibre Reinforced with Poly Lactic Acid Green Composites
Authors: Parisithu B. , Alagumurthi N. , Anand G.
Published: March 2023

This study examines the impact of through-the-thickness tufted natural Woven Pineapple leaf fibres on the tensile and flexural characteristics of sandwich structures. The tufting process seeks to improve the performance of a sandwich structure by ignoring the delamination between the skin and core. Strengthen sandwich structure interlaminations and make them more resistant to damage. This project focuses on creating and implementing an efficient through-the-thickness reinforcing technique based on hand tufting reinforcement. Totally seven specimens were fabricated six tufted and one untufted specimen. Samples that were tufted had three distinct tufting distances (10, 20, and 30 mm, respectively) and two different angle orientations (450,900). An empirical study was developed that comprised tensile and flexural testing of the tufted and untufted sandwich panels formulate of natural pineapple leaf fiber reinforced with Polylactic acid in order to evaluate the impact of tufting on sandwich structure. The outcome displays the fabrication-specific mechanical characteristics of composite laminates. In the tensile mechanical test, the strength of the tufted specimen (450,900) increased by 17% and 34%, respectively, in comparison to the untufted specimen. According to the results of the flexural test, the highest flexural strength for a tufted specimen is between 35% and 67% when compared to an untufted specimen. This indicates that the tufting was successful in enhancing both the in-plane and out-of-plane mechanical properties of composites. Finally, the fracture surface of the tested specimens is examined using scanning electron microscopy (SEM).
Study of Thermal Aging of the PCM Using Acoustic Emission and Optical Microscopy
Authors: Bashkov O.V. , Bryansky A.A. , Solovev Denis B.
Published: March 2023

This work presents results of a study of the influence assessment based on the recorded acoustic emission (AE) parameters of thermo-oxidative aging conditions on the destruction process of a polymer composite material (PCM). The objects of the study were specimens cut from a fiberglass reinforced plastic (FGRP) plate. The plate was made by vacuum infusion technique using Derakane 411-350 resin and 9 layers of St-62004 glass fabric. Specimens aging were done by holding in a muffle furnace for 96 hours at temperatures of 60, 100, 120, and 200 ° C. Mechanical test was the three-point static bending method. For the AE recording was used a hardware-software complex developed at KnASU. The AE signal Fourier spectra were two-stage clustered with the self-organizing Kohonen map according to the technique previously developed and tested by the authors. The types of the PCM structure damage were characterized by the obtained clusters centroids. The fracture process kinetics is described depending on the conditions of thermo-oxidative aging and based on the accumulation of clusters during mechanical tests. The negative influence of high temperatures on the polymer matrix degradation, leading to a decrease in the ability of the matrix to effectively distribute internal stresses over the PCM volume due to the adhesion corruption with the reinforcing material, has been established.
Comparison of Microstructure and Properties of Nickel-Copper Alloy Prepared by Casting and Laser Powder Bed Fusion Process
Authors: Chlupová Alice , Šulák Ivo , Kuběna Ivo , Kruml Tomáš , Roth Jan Philipp , Jahns Katrin
Published: March 2023

Nickel-copper alloys are commonly used in highly corrosive conditions where strength is required. Typical applications are in the marine sector, petrochemical industry, or energy facilities such as chemical tubes, pumps, heat exchangers and superheated steam systems. This paper compares the microstructure and mechanical properties of a cast alloy with a 3D printed alloy processed via a laser powder bed fusion (LPBF) technique. Small cylindrical specimens were used for tensile tests at room temperature (RT) and elevated temperatures up to 750 °C in air. The tensile stress-strain response was determined for both types of materials. At RT, LPBF material has a higher yield strength and ultimate tensile strength than a cast alloy. At elevated temperatures, the strength of both variants is comparable. However, the fracture elongation of the LPBF material is significantly lower over the entire range of investigated temperatures. Fracture surfaces and polished sections parallel to the specimen axis were investigated to compare the microstructure and damage mechanisms of the nickel-coper alloy 400 prepared by conventional casting and via LPBF.
Green Building Materials: Mechanical Performance and Environmental Sustainability
Authors: Salzano Cinzia , Farina Ilenia , Singh Narinder , Sadrolodabaee Payam , Puca Salvatore , Ramondo Antonio , Colangelo Francesco
Published: March 2023

In recent years, in the field of waste management, waste-to-energy plants have been attained great attention as a valid method for mitigating landfill disposal in addition to valorizing waste from the energy point of view. Moreover, there are several technological proposals aimed at valorizing and reusing the residues produced by incinerators. Nonetheless, pre-treatment and treatment techniques, including washing and the solidification/stabilization process, may be necessary for the recovery and recycling of this type of by-product. In this regard, the objective of this research is the production of lightweight artificial aggregates with acceptable quality, capable of guaranteeing specific requirements and technical performance, through the recycling of fly ash derived from municipal solid waste incineration (MSWI). The properties of the three types of aggregates, produced through the cold-bonding pelletization, were evaluated through the mechanical and leaching tests.
Durability of Basalt Rebars under Alkaline Environment
Authors: Foon Leong Yee , Binti Othman Rokiah , Jaya Ramadhansyah Putra , Sulaiman Mohd Arif , Duraisamy Youventharan
Published: March 2023

Basalt Fibre Reinforced Polymer (BRRP) is a new composite material made from basalt fibre, and resin matrix. It has been introduced to replace steel rebars as the main component of reinforced concrete structures because of their corrosion resistance under aggressive environments. This study investigates the mechanical properties of BFRP and the degradation state exposed to the alkaline environment and compares the corrosion rate with steel rebars. The flexural strength properties are tested as the parameter of mechanical properties. The results show that the flexural strength of BFRP is affected by immersion time (100h, 500h, 1000h) significantly. SEM results show mechanism of corrosion state that cracked resin matrix occurred and EDS results indicate the percentage components especially silicon elements that detected increased after corroded. This research identifies a current knowledge gap and can be serve as a reference point for further studies on the properties of BFRP bars to replace steel bars for safe and economic reinforced concrete structures in alkaline environments.
Rheological and Mechanical Properties of Hot Mix Asphalt Incorporating Polypropylene and Polyethylene Fibers
Authors: Ferdaus Rashida , Masri Khairil Azman , Jaya Ramadhansyah Putra , Shahnewaz Shoaib Md.
Published: March 2023

Polymer-modified binders in hot mix asphalt (HMA) mixtures have become more widely used in recent years. To prevent fatigue, rutting and various distresses, different types of polymer modifiers have been utilized. This study investigates modifying asphalt mixture in dense asphalt mixture with polypropylene (PP) and polyethylene (PE) fibers. The performance test includes softening point, penetration test as physical properties, and dynamic creep test for mechanical behavior of modified PP, PE, and unmodified asphalt. The dosage of PP and PE adopted for this study was 0.5% - 2.5% by weight of the asphalt binder. The results of the study are that the effect of polypropylene and polyethylene fibers on asphalt mixture behavior is sensibly good from considering rheological and mechanical properties. Furthermore, PE offers a better blend in comparison to PP was found in softening point and penetration tests. Consequently, a modifying content of 2% of PP and PE by weight of asphalt is suggested for the enhancement of asphalt mixtures, as determined by the dynamic modulus test at 40 C. A further consideration is highlighted that combining a polymer with hot mix asphalt maximized the service life of the pavement.
Macrostructure and Fracture Behaviour of Rice Husk and MWCNT Dispersion Strengthened Alkali Treated Banana Fiber Matrix Hybrid Composites
Authors: Ramu S. , Senthilkumar N. , Rajendran Saravanan
Published: March 2023

The mechanical properties of natural fiber composites reinforced with rice husk and multi-walled carbon nanotubes are studied. Two different mixing concentrations are prepared: 5 wt.% and 10 wt. % rice husk and 0.5 wt.% and 1.0 wt.% multi-walled carbon nanotubes incorporating with the constant reinforcing phases of the banana fiber is 10 wt.%. (Specimens: NBRME1 and NBRME2, where, N-NaOH; B-Banana fiber; R-Rice husk; M-MWCNT; E-Epoxy). The effect of surface treatment of banana fiber bundles is reacted with a 6% sodium hydroxide solution. The surface-treated reinforcement results indicated higher tensile, bending, and impact strength of the 0.5% MWCNT composite (43.96 MPa, 60.62 MPa, and 46.5 J/m) compared with 1% MWCNT composite. High-resolution optical macroscopic images are revealed a variety of defects, including interface behaviour, fiber stretching, fracture, cracking, and agglomeration. Biodegradable organic rice husk-based epoxy resin composite is valuable for manufacturing electronic parts, chips and circuits.
The Potential Use of Palm Oil Clinker as Drainage Layer in Extensive Green Roof System: Runoff Quality Assessment
Authors: Shahid Khairul Anuar , Zailan Roziah , Yahaya Fadzil Mat , Mohd Zain Norsyafiqah , Romali Noor Suraya , Md Jaafar Mohd Faizal
Published: March 2023

Green roof technology has demonstrated the potential environmental benefits of building indoor thermal performance, eliminating air pollutants and reducing runoff flows to the drain. In addition, the green roof was used as a plant growth medium for the soil element, and several interactions were created between the two strands. Malaysia has become the world's second-largest exporter of palm oil. However, the process of extracting the oil from the fruit will produce a byproduct known as palm oil clinker (POC) that will contribute to increasing landfill area. Since the POC is a waste material, the potential of chemical reaction to the plant development and runoff quality needs to be carried out. Therefore, this study investigates the potential of using palm oil clinker as a drainage layer in green roof systems in terms of plant development and runoff quality. The extensive green roof (EGR) specimens were prepared and the POC was used to replace the conventional drainage layer in the green roof system. In addition, physical and chemical tests were carried out in the laboratory to ascertain the result including the turbidity, total suspended solids (TSS), pH, and chemical oxygen demand (COD) test. Based on the results, although the COD and TSS are high, it is still within an acceptable range set by National Water Quality Standard (NWQS). The data analysed by using the quantitative data analysis techniques have shown that the POC has a good potential to be used as a drainage layer in the green roof system.
Hysteroscopic resection of cervical ectopic pregnancy: A case report
Authors: Jayawardane Madura , Fernando Ajith , Fereen Wilcasim , Banu A. Hasny
Published: March 2023

No abstract available
Laparoscopic retroperitoneal triple neurectomy for Intractable post herniorrhaphy groin pain
Authors: Samarajeewa C. U. K. , Pragalathan B. , Herath A.
Published: March 2023

No abstract available
Giant sialolith in submandibular salivary gland
Authors: Fernando P. D. C. , Siriwardana B. S. M. S. , Haneena M. A. F.
Published: March 2023

No abstract available
A descriptive study on assessment of fear of surgery in patients in a tertiary care center
Authors: Bandara S. C. , Niroshan H. D. S. , Pathirana A.
Published: March 2023

Introduction: The psychological aspect of patients awaiting surgery is an area often overlooked by surgical professionals. Fear of surgery is a common yet neglected aspect that is often associated with dire consequences like increased postoperative pain, increased use of analgesia, poor recovery, etc. This study describes the fear amongst surgical patients in a tertiary care unit from 2020 to 2021.
Method: Patients awaiting pre-selected major and minor surgeries were administered an internationally validated standard questionnaire (Eight item instrument of surgical fear: Surgical Fear Questionnaire) on their fear of surgery. The prospective descriptive data on the fear of surgery were analyzed with regard to variables such as demographic data, surgery, type of anesthesia, etc.
Results: 130 patients were interviewed. Significant associations were identified between fear of surgery and age, educational level, ASA grading, duration of hospital stay prior to surgery, type of surgery, malignant disease, and type of anesthesia. However, gender, smoking and alcohol use, and history of previous surgery had no significant association. In view of an intervention to alleviate the fear of surgery 64% opted for no intervention/treatment, and 13.8% appreciated some sort of treatment. Strikingly 65% stated more information about the surgery would have been helpful.
Discussion and Conclusion: Fear of surgery in patients is associated with many factors. Preoperative identification of certain factors is helpful to predict and intervene to mitigate them. Informing the patients regarding surgery is important to reduce surgery-related fear.
Stress response in open versus laparoscopic procedures: is laparoscopic surgery truly as beneficial to the patient as it promises to be?
Authors: Gambhir S. , Sukhadia M. , Bajpai G. , Sethi D. , Sethi A.
Published: March 2023

No abstract available
Abdominal aortic dimensions in Sri Lankan patients: a computed tomography imaging based preliminary study
Authors: Arudchelvam J.
Published: March 2023

Introduction: The abdominal aorta begins at the aortic hiatus of the diaphragm at the 12th thoracic vertebral level and ends by dividing into common iliac arteries at the fourth lumbar vertebral level. The diameter of the aorta varies according to age, gender, and race. Generally, the diameter of the infrarenal aorta (IRD) in the western and Korean populations is 19.0 to 21.0 mm.
Methodology: In this study, 59 Computed Tomography (CT) images of patients who underwent contrast-enhanced abdominal CT for non-aorta related illness were analyzed.
Results: There were 35 males (59.3%). The mean age was 58.2 years (30-88). The mean Supra Coeliac Aortic Diameter (SCD) was 20.2 mm (16.5-27.0) and the mean Infra Renal Diameter (IRD) was 15.5 mm (11.2-19.3) in all subjects. IRD in males was 16.4 mm and IRD of males from a western study was 19.3mm and this difference was statistically significant.
Conclusion: Therefore the Sri Lankan males have smaller aortic diameter compared to the western population. This should be taken into consideration when aortic aneurysm diameter is defined and when the threshold diameter for intervention is determined.
Mitral valve repair complicated by left circumflex coronary artery occlusion
Authors: Landa Andres Bacigalupo , Hoyos Jason , D’Mello Jayanand
Published: March 2023

The anatomical relationship between the mitral valve and the left circumflex coronary artery places this vessel at risk for occlusion during mitral valve repair or replacement. In view of the potential high morbidity and mortality of this complication, the anesthesiologist has a vital role in its prompt diagnosis. We present the case of a 47-year-old man who underwent a minimally invasive mitral valve repair, which was complicated by left circumflex coronary artery occlusion.
Anesthesia Management in a Patient with Situs Inversus Totalis Posted for Kidney Transplantation: A Rare Case Report
Authors: Mittal Saurabh , Goyal Vipin Kumar , Shekhrajka Praveenkumar , Nimje Ganesh Ramaji
Published: March 2023

In situs inversus totalis (SIT), the transposition of all organs lies in the thorax and abdominal part of the body, give a mirror image. It is a congenital anomaly with an incidence of 1 in 8000-10,000 among the general population. SIT in association with cardiac or spinal anomalies or with syndromes such as Kartagener or cystic fibrosis presents a complex and challenging clinical situation for the treating anesthesiologist. We report a case of a 41-years-old male diagnosed with end-stage kidney disease with SIT posted for kidney transplantation surgery. Kidney transplantation in these patients may be difficult due to the presence of vascular abnormalities in these patients. Relevant experience always remains limited.
Dental implants in growing children − No longer a myth
Authors: Indrajith D. , Melath Anil , Subair K. , Arjun M. R. , Prakash N.
Published: March 2023

The new era in dentistry is the implant. However, implant placement in the pediatric patient is still a dilemma. Congenital hypodontia, anodontia, and oligodontia are rare in children. However, a variety of treatment options are available and one of the treatment options which can be given to this pediatric patient is the implant. In this review, we focus on implants that can be given to growing children and the effectiveness of the implant in growing children.
A study to evaluate the self-confidence of undergraduate dental students in relation to oral and maxillofacial surgery to assess the teaching curriculum at Indian university
Authors: Kodlipet Sharath , Amana Rolson Sandeep , Sudhakar A.
Published: March 2023

Background:

Self-confidence is an essential attribute required for dental students to succeed in oral and maxillofacial surgery (OMFS).

Aim:

This study aimed to evaluate the self-confidence levels of undergraduate dental students in India in relation to OMFS and assess the effectiveness of the teaching curriculum.

Materials and Methods:

The study involved 100 undergraduate dental students from a university in India, and a self-confidence questionnaire was used to assess their confidence levels.

Results:

The results showed that the self-confidence levels of the students were moderate, with most students reporting low levels of confidence in performing OMFS procedures.

Conclusions:

The study concluded that there is a need for the university to review and update the OMFS teaching curriculum to improve the self-confidence of the students in this area.
Hourglass appearance in cystocele with an impacted vesical calculus
Authors: Ramalingam Manickam , Kallappan Senthil , Janani M N
Published: March 2023

A 62-year-old hypertensive female presented with a mass protruding from the vagina for the past 20 years. She complained of dysuria and urinary incontinence for the past 3 months. There was no history of surgical intervention in the past. The examination revealed a tender irreducible total uterine prolapse (procidentia) and cystocele with a decubitus ulcer. Computed tomography urogram showed a total uterine prolapse along with the prolapse of a part of urinary bladder, with a vesical calculus of size 2.8 cm × 2.7 cm in the prolapsed part of the bladder, below the level of the pubic symphysis, with minimal wall thickening. After optimization, vesical lithotripsy and bilateral ureteric stenting were performed, followed by hysterectomy after 2 days.
Results obtained in a data mining process applied to a database containing bibliographic information concerning four segments of science
Authors: Ruiz Lobaina Esther Marina , Romero Suarez Pedro Lazaro
Published: March 2023

The objective of this work is to improve the quality of the information that belongs to the database CubaCiencia, of the Institute of Scientific and Technological Information. This database has bibliographic information referring to four segments of science and is the main database of the Library Management System. The applied methodology was based on the Decision Trees, the Correlation Matrix, the 3D Scatter Plot, etc., which are techniques used by data mining, for the study of large volumes of information. The results achieved not only made it possible to improve the information in the database, but also provided truly useful patterns in the solution of the proposed objectives.
Keywords: Data Mining, Text Mining, Bibliomining, Knowledge Discovery, Special Libraries

RESUMEN

Este trabajo presenta los resultados obtenidos con un proceso de minería de datos aplicado a una base de datos que contiene información bibliográfica referida a cuatro segmentos de la ciencia. Fue de interés la aplicación de varias técnicas de minería de datos a la información, ya que la base de datos se encontraba en ese momento sujeta a revisión sobre la calidad de su contenido y se tomaron decisiones sobre las técnicas de minería de datos a aplicar, en correspondencia con los resultados que ofrecieron cada una. Los resultados intermedios logrados son imprescindibles, para que el investigador pueda evaluar si los patrones logrados satisfacen los objetivos de la investigación o si es necesario aplicar cambios en cuanto a los datos que conforman la base de datos, y a las técnicas que se van a aplicar a la información, para lograr patrones verdaderamente útiles en la solución de los objetivos propuestos.
Palabras Claves: Minería de Datos, Minería de Textos, Bibliominería, Descubrimiento de conocimientos, Bibliotecas especializadas.
Avaliação da atividade antioxidante do extrato de Hibiscus sabdariffa in vitro
Authors:   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Gois Camila Maria Dassie , Lima Clara Beatriz de ,   Universidade Estadual de Maringá, Maringá, PR, Brasil., Araújo Daniela Cristina de Medeiros ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Godinho Jacqueline ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil.
Published: March 2023

Diversas patologias estão associadas ao estresse oxidativo, assim, é crescente o interesse em substâncias antioxidantes, encontradas em plantas. Dentre as mesmas, destaca-se o Hibiscus sabdariffa, conhecido como hibisco, que apresenta substâncias como flavonoides e antocianinas, sendo estas promissoras no desenvolvimento de fármacos e cosmecêuticos. Assim, este estudo avaliou a atividade antioxidante do extrato hidroalcoólico de H. sabdariffa. Foi utilizado o método DPPH (2, 2 Defenil-1- pichilhidrazila) em microplacas. O H. sabdariffa apresentou IC50= 255,9 mcg/mL, exercendo a capacidade de reduzir 50% do radical livre de DPPH. Assim, conclui-se que o extrato hidroalcoólico de H. sabdariffa apresentou boa atividade antioxidante.
Avaliação da sarcopenia em idosos submetidos ao Timed Up and Go Test e ao teste de força de preensão manual
Authors:   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Valente Camila , Fernandes Simone ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil.
Published: March 2023

O objetivo deste estudo foi avaliar a incidência da sarcopenia através do Timed Up and Go Test e da Força de Preensão Manual em idosos do Centro Dia do Idoso, na cidade de Maringá, contando com a participação de 15 idosos. Foram considerados sarcopênicos os indivíduos que apresentavam redução da velocidade da marcha, somada à redução de força de preensão manual. Os resultados mostraram a presença da sarcopenia na maioria dos idosos, concluindo que, com o avanço da idade, ocorre um declínio da função muscular, resultando em grandes prejuízos à funcionalidade.
Consumo de medicamentos com finalidade estética entre modelos de Maringá e região metropolitana
Authors:   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Nicoletti Yasmin Arceli , Vasconcelos Sandra Sayuri Nakamura de ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil.
Published: March 2023

O uso de medicamentos para fins estéticos tem sido cada vez mais comum. Assim, o objetivo desta pesquisa é avaliar o perfil e consumo de medicamentos com finalidade estética entre modelos comerciais de Maringá. O estudo foi desenvolvido através da aplicação de um questionário em plataforma digital. Foram entrevistadas 53 modelos, a maioria entre 18 a 25 anos, solteiras, sem filhos, com graduação incompleta. Além disso, 41,5% das entrevistadas declararam ter usado medicamentos com fins estéticos. É escassa a produção científica a respeito desta temática e importante a identificação dos grupos vulneráveis para que ações de prevenção sejam realizadas.
Controle de qualidade da vitamina D 7000UI manipuladas e industrializadas
Authors:   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Rodrigues Vanusa Messiano , Gonzalez Bárbara Longhini ,   Universidade Estadual de Maringá - UEM, Maringá, PR, Brasil., Godinho Jacqueline ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Araújo Daniela Cristina de  Medeiros ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil.
Published: March 2023

O uso da vitamina D teve um aumento significativo desde o início da pandemia, devido a estudos que sugerem que a mesma tem um importante papel no fortalecimento do sistema imunológico. Com isso, as indústrias e farmácias magistrais passaram a produzir mais desta substância. Isto posto, o objetivo deste trabalho foi realizar o controle de qualidade de vitaminas D industrializadas e manipuladas. De acordo com as metodologias realizadas, as 6 amostras avaliadas foram aprovadas, visto que estavam dentro dos padrões exigidos pela Farmacopeia Brasileira.
Controle de qualidade de comprimidos de atenolol genérico em relação ao medicamento referência
Authors:   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Vidal Nathália Lohamy da Silva , Gonzalez Bárbara Longhini ,   Universidade Estadual de Maringá - UEM, Maringá, PR, Brasil., Pellogia Dyessica Santos ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Silva Heloisa  Almeida Montes ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil., Mello João Carlos Palazzo de ,   Universidade Estadual de Maringá - UEM, Maringá, PR, Brasil., Araújo Daniela Cristina de Medeiros ,   Centro Universitário Ingá – Uningá, Maringá, PR, Brasil.
Published: March 2023

O atenolol é um agente betabloqueador anti-hipertensivo e antianginoso utilizado principalmente no tratamento da hipertensão arterial, da angina pectoris e de arritmias cardíacas. Este trabalho teve como objetivo realizar o controle de qualidade físico-químico de comprimidos de atenolol, comparando o medicamento genérico à referência, a fim de avaliar a qualidade dos produtos e verificar se apresentam equivalência farmacêutica. Para isso, foram realizados os testes de peso médio, friabilidade, dissolução e desintegração. De acordo com os resultados dos testes, foi possível observar que as amostras testadas cumpriram os requisitos de qualidade conforme os parâmetros descritos na Farmacopeia Brasileira 6.ª edição.
Unknown drawing by V.I. Surikov from the collection of the Krasnoyarsk Regional Museum of Local Lore
Authors: Куклинский И.В.
Published: March 2023

Статья посвящена неизвестному рисунку Василия Ивановича Сурикова, обнаруженному в коллекции Красноярского краевого краеведческого музея. Несколько лет назад на негативах с видами выставки «Уголок В.И. Сурикова» 1916 и 1924 годов удалось рассмотреть неизвестный ранее рисунок, информация о котором отсутствует в каталогах работ художника. В 2019 году утерянный рисунок великого русского живописца обнаружен в фондах Красноярского краевого краеведческого музея. Работа В.И. Сурикова была неправильно атрибутирована, находилась среди графических произведений красноярского художника Дмитрия Иннокентьевича Каратанова и именно под авторством последнего был записана в учетные книги музея.

The article is devoted to an unknown drawing by Vasily Ivanovich Surikov, found in the collection of the Krasnoyarsk Regional Museum of Local Lore. A few years ago, it became possible to see a previously unknown drawing by Surikov on the negatives with views of the exhibition “The corner of V.I. Surikov” in 1916 and 1924. Information about this drawing was absent in the catalogues of the artist's works. In 2019, the location of the lost drawing was established. Lost drawing by V.I. Surikov was incorrectly attributed and was among the graphic works of the Krasnoyarsk artist Dmitry Innokentyevich Karatanov.
The activity of the painter D.I. Karatanov in the development of art education in Krasnoyarsk and creative processes in Siberia
Authors: Строй Л.Р.
Published: March 2023

Исследование посвящено творческо-педагогической биографии красноярского живописца Дмитрия Иннокентьевича Каратанова, деятельность которого была направлена на становление художественного образования столицы Енисейской губернии, позже Красноярского края. Все этапы этого процесса, включающие организацию первых рисовальных классов М.А. Рутченко (1891–1985), школы живописи А.С. Шестакова (1905–1907), художественной школы (1910–1919; 1936–1941; 1946 по сегодняшний день), связаны с именем пейзажиста Каратанова. Данная тема осмысляется в контексте культурных и историко-политических событий, потрясавших Россию в XIX–XX веках. В исследовании использован метод исторической реконструкции, позволивший заполнить фактологические лакуны новыми сведениями и сделать объективный вывод об уникальной роли Каратанова в творческих процессах Красноярска.

The purpose of this study is to reconstruct the creative and pedagogical biography of the Krasnoyarsk painter Dmitry Karatanov, aimed at establishing art education in the capital of the Yenisei province, later the Krasnoyarsk Krai. All stages of this process are associated with the name of the landscape painter Karatanov, including the organization of the first drawing classes of M.A. Rutchenko (1891–1985), painting school of A.S. Shestakov (1905–1907), art school (1910–1919; 1936–1941; 1946 to date). This topic is comprehended in the context of cultural, historical and political events that shook Russia in the 19th–20th centuries. The study used the method of historical reconstruction, as a result, the author filled in the factual gaps with new information and made an objective conclusion about the unique role of D.I. Karatanov in the creative processes of Krasnoyarsk.
Thay đổi thị hiếu nhu cầu đối với phương tiện xe điện tại Thành phố Hồ Chí Minh: Chi phí và lợi ích từ các cơ chế ưu đãi trong giai đoạn đầu phát triển phương tiện giao thông sử dụng điện
Authors: Tesoriere Giuseppe , Shrestha Rajat , Kothari Vishant , Steimer Hamilton , Thuji Yangden Mende , Hernández Duarte Lorenzo
Published: March 2023

Phân tích của nhóm tác giả và bằng chứng thực tế từ các thị trường xe điện tiên phong cho thấy việc giới thiệu và áp dụng các cơ chế ưu đãi nhằm gia tăng tính cạnh tranh về chi phí, kèm theo việc hỗ trợ triển khai các trạm sạc điện là những nội dung thiết yếu để có thể thúc đẩy việc phát triển xe điện tại TP.HCM.
Nilai pH dan Organoleptik Daging Domba dengan Perendaman Menggunakan Bawang Batak (Allium chinense G. Don) dan Daun Jambu Biji (Psidium guajava L.)
Authors: Asmaq Nur , Wibowo Fachrina , Rinaldi Muhammad
Published: March 2023

Batak onions (Allium chinense G. Don) and guava leaves (Psidium guajava L.) are plants that are commonly found in North Sumatra Province. Batak onion is an endemic plant and only found in this province. The antioxidant content in these two plants can be used as a natural preservative for lamb meat. This study aims to see the effect of Batak onion (Allium chinense G. Don.) and guava leaf (Psidium guajva L.) extracts on the pH and organoleptic values ​​of lamb meat. The method used in this study was an experimental method with 4 treatments and 5 replications in a completely randomized design. The results of the study showed that there was a nonsignificant (P>0,05) effect on the pH value. The organoleptic value had a dark color, the aroma changed like the aroma of the extract and the texture was chewy.