bluuebunny/crossref_metadata_2025 huggingface dataset:
Heavy Metal Ions Detection in Cosmetics: Nanogold Based Sensors
Authors: Zhang Shuwei
Published: December 2023

Makeup has become an important way for people to pursue beauty. At the same time, heavy metal pollution in cosmetics is receiving increasing attention. In order to improve the quality of cosmetics and promote the development of cosmetics industry, finding a convenient and obvious method to detect heavy metals ions in cosmetics has great significance. Large numbers of detection methods have been established, among which the most noteworthy is the detection method based on nanogold sensors. Nanogold is a new type of material with unique properties at the nanoscale. Therefore, sensors based on nanogold are highly promising for detecting heavy metal ions in cosmetics. Especially in recent years, as people pay more and more attention to health, the number of related studies increased significantly. Therefore, it is very important to learn about the heavy metal ions using nano gold sensors. In this work, the search for bad ions of metal on nanogold sensors has become the research object. The nanogold sensor's detection technique was described and contrasted with other processes. Consequently, nanogold sensors for the detection in cosmetics will improve further.
Latest Improvement of Lateral Flow Assay in Detecting Nucleic Acid and Food Contaminant
Authors: He Jiapeng
Published: December 2023

Lateral flow assay is a paper chromatography used in portable test kits. It can show the testing results visually on the test line and control line. Lateral flow assay has been widely used during the COVID-19 pandemic due to its low cost and portability. Lateral flow assay was also used in the pregnancy test kits which displayed relatively high sensitivity. Lateral flow assay has an imperatively simple mechanism which is very convenient. This portable and inexpensive testing method has significant potential in ultrasensitive biosensing. Recently, numerous innovations in this technology are invented. With the combination of other new technology, the lateral flow assay could be modified. It could be improved in sensitivity and selectivity. In this work, the mechanism, latest research results, and applications were be discussed. The modification of LFA technology by CRISPR, fluorescence, and some nanoparticles were also introduced. This work would promote the further progression of lateral flow assay (LFA) and the possible usage of it.
Combining Sensors and Nanoparticles Could Improve Medication Application
Authors: Zhang Haosheng
Published: December 2023

More and more scientists are becoming aware of the enormous potential of nanoneedle biosensors as biosensors and nanotechnology advance. Biosensors made of nanoneedles exhibit exceptional sensitivity and specificity. It is a device that integrates nanotechnology and biotechnology that uses chemistry and optics as a detection and analysis mechanism for molecules. As the primary component of the sensor, nanoneedles will be essential in the process of detecting molecules and nanomaterials are the fundamental building blocks that enable nanoneedles to reach their full potential. Nanomaterials are extremely small. They differ from regular materials in terms of their chemical and physical characteristics, and these unique qualities help them interact with molecules effectively. Nanomaterials come in many different forms, such as nanowires, nanotubes, and nanoporous substances. Scientists have been able to make further advancements in the design and use of nanobiosensors thanks to the utilization of these materials and the growth of nanotechnology. This paper's goal is to detail the use of various nanomaterials in nanobiosensors and to emphasize how these materials can enhance the functionality of the sensors.
Overview of the principle of detecting whitening components by high performance liquid chromatography
Authors: Long Lin
Published: December 2023

With the scientific development of chemical technology and life technology, more and more substances have been discovered and applied to current human production and life. In the process of substance analysis and identification, effective detection tools are needed to accurately identify substances. As a rapidly developing and efficient detection method, HPLC has been widely used in the detection of various cosmetic substances, including nicotinamide, firstly introduces the development background of HPLC, the importance of skin whitening in today's society, and some common whitening ingredients and principles. The application of HPLC in the determination of niacinamide, 3-o-ethyl ascorbic acid and α-arbutin is introduced in the following, and the detection principle and advantages and disadvantages of using HPLC for detection are analyzed. Finally, we analyze and summarize the factors that affect HPLC detection. This approach can be used for market research and quality control of functional cosmetics.
Geological characteristics and genetic types of antimony deposits in the Weishan Yongping ore concentration area of Yunnan Province
Authors: Shi Ping , Xu Rongyong , Wang Xiaoliu , Yang Jianbo , Li Wei
Published: December 2023

The Weishan Yongping ore concentration area is located at the southern end of the "Jubao Basin" in the Lanping Basin, and is part of the Lanping-Simao mineralization belt. It is an important antimony ore belt in Yunnan Province. This article analyzes the geological characteristics of antimony deposits in the ore concentration area from the perspectives of regional geology and typical deposit characteristics, explores their genetic types, and provides a basis for the exploration and development of antimony resources in the area.
The Influence of Different Catalysts on the Environment and Urea Catalytic Efficiency
Authors: Zhang Danyang
Published: December 2023

China is one of the world's top producers of agriculture, therefore expanding the urea market is crucial to supplying the country's expanding population. Agriculture has grown more dependent on nitrogen and urea as a result of population growth and other socioeconomic factors, which has led to excessive reliance on fossil fuels like coal and oil. Finding a suitable urea catalyst is vital since the urea industry's sustainability is being threatened from all angles by excessive energy consumption and high environmental emissions. Therefore, individuals prefer to hunt for ideal catalysts to increase efficiency among a number of parameters, including catalyst, reaction temperature, and reaction duration, in order to enhance the rate of urea and decrease the cost. In order to address the issues of the industry's overall level, ecology, and production structure, people start to screen and invent the catalysts from the metal and non-metal directions in terms of their activity, stability, and cost.
Stress Test of Precast Concrete Materials for Prefabricated Buildings by Numerical Analysis
Authors: Li Yin , Wang Ang
Published: December 2023

There are serious environmental pollution problems in traditional construction operations. To improve China's construction industry, precast concrete has become one of the important environmental protection materials. Therefore, the stress of precast concrete is deeply analyzed. Based on the numerical analysis, prefabricated concrete buildings and other theories, numerical analysis and finite element method are taken as the research methods to analyze the mechanical properties of precast concrete materials and of steel bars. Finally, the situation and level of the DW1 specimen and DW2 specimen after the influence of the sliding and rotation of the ground beam on the horizontal displacement of the vertex are expounded from various aspects. The research results show that in terms of the mechanical properties of precast concrete materials, the performance data of prefabricated wallboards are all above 37, which is higher than the average strength. In the analysis of mechanical properties of steel bars, the steel bar with a diameter of 8 has a yield strength of 456.4 Mpa, an ultimate strength of 617.3 Mpa, and an elongation of 25.6%. The steel bar with this diameter has the best properties. In DW1 specimen and DW2 specimen, with the continuous progress of the loading process, the overturning moment caused by horizontal loads is also gradually increasing. In the horizontal level of prefabricated building materials, the increase of the axial compression ratio increases the anti-overturning moment of the specimen, and the peak bearing capacity of the specimen increases significantly, but the ductility decreases significantly. In the bearing capacity, there is little difference between the measured bearing capacity and the calculated bearing capacity of each specimen with vertical force applied. Therefore, the force test of precast concrete materials in prefabricated buildings is deeply studied based on numerical analysis, which has an important guiding significance for the construction industry to improve business performance and market competitiveness.
Analysis of wind time-varying performance of reinforced concrete electric pole under Marine atmospheric environment
Authors: Xu Jun , Han Jiceng , Zhang Yanhui , Fang Chaoying , Qian Jian , Yang Zhiming , Wu Zhaoqi
Published: December 2023

Bearing capacity calculation model of concrete electric pole considering concrete long-term performance degradation and steel corrosion is established. The horizontal bearing capacity and wind resistance of typical concrete electric pole under Marine atmospheric environment are analyzed with service time. The effects of concrete protective layer thickness, stirrup diameter and strength coefficient on the long-term wind resistance of electric pole are discussed. It is found that with the increase of service time, the shear strength of the concrete pole deteriorates faster than that of the flexural strength, and the failure mode changes from bending failure to shear failure. The wind resistance of the pole after long service can be improved by increasing the thickness of the protective layer, adopting larger diameter stirrup and higher strength coefficient. The bearing capacity calculation model of concrete electric pole considering concrete long-term performance degradation and steel corrosion is established. The horizontal bearing capacity and wind resistance of typical concrete electric pole under Marine atmospheric environment are analyzed with service time. The effects of concrete protective layer thickness, stirrup diameter and strength coefficient on the long-term wind resistance of electric pole are discussed. It is found that with the increase of service time, the shear strength of the concrete pole deteriorates faster than that of the flexural strength, and the failure mode changes from bending failure to shear failure. The wind resistance of the pole after long service can be improved by increasing the thickness of the protective layer, adopting larger diameter stirrup and higher strength coefficient.
Numerical Simulation of Thermal Flow Model Under Fluid Mechanics
Authors: Dong Xiaonan , Song Yingbin
Published: December 2023

The internal flow field of vertical water vapor waste heat boiler was studied by numerical simulation. In this project, the RNGk-ε turbulent flow model and Lagrange stochastic trajectory model is used to numerically simulate the gas-solid flow in a direct pressure water vapor waste heat boiler. The influence of the inlet shape, flow rate and outlet clearance of cooling water on the flow and heat transfer performance of cooling water in the cooler was analysed. It is found that the use of three inlet design can improve the water side cooling efficiency, and make the flow rate and temperature distribution in the cooling chamber more uniform. The optimal cooling water volume is 200 tons/hour in the current 2-stage cooling inlet pipe type.
Experimental study on the compressive strength of ultrahigh performance prefabricated concrete walling materials
Authors: Wang Ang , Shi Rui
Published: December 2023

Ultra High Performance Concrete (UHPC) is a new type of cement-based material composed of cement, fine aggregates, fibers and a high performance water reducing agent. In the present study, experiments were performed to assess the influence of the different components on the performances of this material. It is shown that the compressive strength increases with an increase in the silica fume content. With an increase in the steel fiber content, the compressive strength value of the sample first increases and then attains a plateau. When the volume content of steel fiber exceeds 1.5%, the compressive strength displays a downward trend. The coarse aggregate content has a great influence on the compressive strength. When it is 24%, the UHPC test block under four water-binder ratios attains the maximum compressive strength value.
Analysis of the Influence of Structural System Selection on Foundation Isolation Houses
Authors: Xing Mu , Chao Zhou , Chen Chunming
Published: December 2023

According to the modeling and analysis of the structural design software (ETABS and SATWE), the data are obtained, and the mechanical properties and preliminary economic indicators of the three structural systems of frame structure, frame shear structure and shear structure of shear wall structure in the basic isolation design.The time course analysis data are summarized and compared, and the actual foundation isolation in the selection stage.Under the premise of the site type, seismic fortification intensity and building height determination, the best structure selection and layout are obtained by analyzing the stress performance and economic indicators of the structure.The influence of the structure selection on the stress performance and economic cost is discussed.
FLAC3D-based slope stability analysis and calculation
Authors: Qi Yining
Published: December 2023

Slope stability is related to the normal operation of the project and operational safety, and there have been various methods for evaluating slope stability for a long time, among which the numerical analysis method is the most popular and comprehensive analysis and evaluation method nowadays. In this paper, the numerical simulation is carried out by FLAC3D software to solve the safety coefficient of the slope and the slope stability analysis in combination with the slope of the inverted siphon entry road section at the beginning of Xiaoyuiba, and the conclusions are in line with the actual situation, which shows that FLAC3D software can carry out scientific analysis and evaluation of slope stability and make comprehensive judgement.
Finite Element Analysis of Axial Compression Performance of Stainless Steel -Steel Tube Sandwich Concrete Columns
Authors: Xiong Xin
Published: December 2023

A finite element analysis software, ABAQUS, was used to numerically analyze nine specimens with varying inner steel tube thickness and slenderness ratio to study the axial compression performance of stainless steel - steel tube sandwich concrete columns. The influence of each parameter on the axial compression behavior was explored. The simulation results aligned closely with the experimental results, with the ultimate bearing capacity prediction error within 5%. Bulging deformation consistently occurred on the upper outer steel tube. Increasing the inner steel tube thickness improved the ultimate bearing capacity up to 20%, with the 4-6 mm wall thickness range providing the most effective capacity increase. The ultimate bearing capacity deteriorated up to 5% as the slenderness ratio increased, but the axial compression stiffness markedly decreased due to overall instability. A relationship between the stability coefficient and slenderness ratio was proposed, and the calculation results showed excellent agreement.
Saint Magloire, le dragon et autres serpents
Authors: Colombo Timelli Maria
Published: December 2023

Deux versions françaises de la Vie de saint Magloire (saint breton vécu au vie siècle) nous sont parvenues, l’une en prose, inédite (ms BnF, fr. 13508, daté 1315), l’autre en vers (ms Arsenal 5122 Réserve, daté 1319), dérivées d’un même modèle latin. À partir d’un passage limité – une liste de serpents englobée dans une prière –, cet article se propose d’aborder des questions plus générales: les pratiques de traduction dans les deux textes, le traitement des énumérations, les rapports entre les deux versions. D’autres interrogations restent ouvertes, que seule l’édition de la version en prose permettra de résoudre au moins en partie.
UNILATERAL EJACULATORY DUCT OBSTRUCTION: A CASE STUDY OF ZINNER'S SYNDROME
Authors: ASLAM S , NASREEN M , HAMEED A
Published: December 2023

Zinner’s syndrome is a rare congenital mesonephric (Wolffian) duct anomaly due to developmental arrest in early embryogenesis, comprising unilateral ejaculatory duct obstruction or agenesis, ipsilateral seminal vesicle cysts, and ipsilateral renal agenesis. Here, we present a case of a healthy 17-year-old male in Pakistan presenting with complaints of mild, dull pain in the left lower abdomen. He had no history of lower urinary tract symptoms and regular bowel habits. Imaging revealed non-visualization of the left kidney with multi-cystic pelvic mass related to the left seminal vesicle in keeping with the diagnosis of Zinner’s syndrome.
Investigation of the Validity and Reliability of Two Smart Bands Selected That Count Steps at Different Walking Speed
Authors: YILDIZ Mehmet Emin , GÜNEL İlker
Published: December 2023

Whether activity monitor smart wristbands that have become widespread can accurately estimate the step count while walking is a matter of curiosity. The current study aims to analyze the validity and reliability of step count (SC) estimation at normal walking and fast walking pace under controlled conditions of two selected smart wristbands of the leading wearable device vendors, Xiaomi (Mi4) and Huawei (H4). Twenty healthy adult male and twenty healthy adult female were included in the study and analyzed separately. The mean age of male and female participants was 22.25 and 21.62 years, with BMI values of 24.22 kg/m2 and 21.42 kg/m2, respectively. The above-ground walking protocol consisted of four separate five-minute tests: Normal Walking Test, Normal Walking Retest, Fast Walking Test, and Fast Walking Retest. In the study, the analyses were performed by using activity monitor measurements and criterion measurements (the number of steps determined from video recordings), compatibility of test-retest measurement values, error indicators (MPE and MAPE), Intraclass Correlation Coefficients (ICC), and Bland-Altman limits of agreement. According to the current study results, it was revealed that the MAPE values recorded for Mi4 and H4 smart wristbands for both normal and fast walking pace in male and female participants were <5%, which was deemed excellent. According to all analyses, the H4 device was found to be valid and reliable, but according to ICC and Pearson Correlation analyses, the Mi4 device was not found to be valid and reliable at fast walking pace.
Biological Control of White Rot in Apple Using Bacillus spp.
Authors: Lee Ha-Kyoung , Shin Jong-Hwan , Lee Seong-Chan , Han You-Kyoung
Published: December 2023

Apple white rot, caused by Botryosphaeria dothidea, is one of the important diseases in Korea. B. dothidea can cause pre- and postharvest decay on apple fruit as well as canker and dieback of apple trees. In this study, we isolated bacteria from the trunk of apple trees and tested their antagonistic activity against B. dothidea. Five bacterial isolates (23-168, 23-169, 23-170, 23-172, and 23-173) were selected that were most effective at inhibiting the mycelial growth of the pathogens. The isolate 23-172 was identified as Bacillus amyloliquefaciens and four isolates 23-168, 23-169, 23-170, and 23-173 were identified as Bacillus velezensis by RNA polymerase beta subunit (rpoB) and DNA gyraseA subunit (gyrA) gene sequencing. All isolates showed strong antagonistic activity against B. dothidea as well as Colletotrichum fructicola and Diaporthe eres. All isolates exhibited cellulolytic, proteolytic and phosphate solubilizing activities. In particular, two isolates 23-168, 23-169 were shown to significantly reduce the size of white rot lesions in pretreated apple fruits. These results will provide the basis for the development of a fungicide alternative for the control of white rot of apple.
TEDARİK ZİNCİRİNDEKİ BOZULMANIN İŞLETMELERİN STOK SEVİYESİNE ETKİSİNİN STOKÇULUK ÇERÇEVESİNDE İNCELENMESİ
Authors: TURSUN Mehmet
Published: December 2023

Dünyadaki teknolojik gelişmeler günümüzde işletmelerin rekabet koşullarını oldukça zorlaştırmaktadır. Devamlılığını sağlamak ve işletmenin amaçları doğrultusunda faaliyet göstermek durumunda bulunan işletmeler, sürekli olarak pazar araştırması içerisinde bulunmak zorunda kalmışlardır. Küreselleşen dünyada rekabet edebilmek amacıyla faaliyet alanlarını gün geçtikçe genişleten işletmeler adeta küresel ölçekte faaliyet göstermeye başlamışlardır. Gerek ülke ölçeğinde gerek ise küresel ölçekte faaliyet gösteren işletmeler, bir yandan tüketici ilgi ve isteklerini belirleyerek oluşan talebe göre üretilen ürünün tüketiciye sunması işlemini yürütürken diğer yandan tüketici taleplerinin belirlenerek analiz edilmesi ve üretim aşamasına taşınması gerekmektedir. Dolayısıyla işletmelerin tedarik zinciri sürecini çok iyi yönetmesi gerekmektedir. Bu çalışmada işletmelerin tedarik zinciri sürecinde karşılaştıkları kırbaç etkisini oluşturan nedenler ve bu sürçte işletmelere yapılan “stokçuluk” suçlamaları incelenmiştir. Çalışma sonucunda; Covid-19 ve Ukrayna-Rusya savaşı gibi küresel ölçekte işletmelerin tedarik zincirinde bozulmalara neden olan olayların, işletmelerin stok seviyelerinde kontrolsüzlüklere neden olabildiği belirlenmiştir. Ayrıca literatürde kırbaç etkisi olarak da bilinen stok seviyesindeki kontrolsüzlükler nedeniyle işletmelerin stokçuluk yapmakla suçlanabilmektedir. Stokçuluk yapmakla suçlanan işletmelerin yargılanması sürecinde bu konuda bilirkişilik yapacak olan uzmanların kırbaç etkisini dikkate almaları, işletmelerin haksız yere suçlanmalarının önüne geçeceği değerlendirilmiştir.
Utilising Tiktok Features for Speech Communication
Authors: Tan Kim Hua , Rajendran Agila , Philip Bromeley , Alias Jamsari , Mat Saad Suziana , Mohamad Zulkifli
Published: December 2023

The art of teaching speech communication should be varied according to current trends. Teaching speaking should focus on the practice of the language, which should be done in pairs or groups. However, the COVID-19 pandemic restricted students from attending schools, making speaking in English impossible. Social distancing was enforced and still is now, when they returned to school, ruling out group activities or much speaking in classrooms. This was an issue among English language teachers in Malaysia as the teaching of English uses a modular system that comprises Listening and Speaking, Reading, and Writing. Listening and speaking could not be conducted at will. Pupils were deprived of opportunities to practice the English language in classrooms. Therefore, the suggested course of action was to improve speech communication by utilising the technologically useful application TikTok and its essential functionalities. This study aims to investigate how TikTok features can improve speech communication and examine learners' perceptions after applying the TikTok features to improve their speaking skills. The instruments used for this study are speaking rubrics for speaking tests and a questionnaire. A purposive sampling of 100 students was used. The results show that the respondents scored higher in their post-test than their pre-test after using TikTok to improve their speech communication. All respondents perceived the use of TikTok as positive and encouraging. The implication of the findings includes introducing innovative speaking practice measures such as the development of mobile learning, and a renewed teaching methodology to teach speech communication.
Երկաթբետոնե ավտոմոբիլային կամուրջների թռիչքային կառուցվածքների դինամիկ գործակցի արժեքի որոշման միջազգային փորձի վերլուծություն
Authors: Սարգսյան Արտաշես , Սարգսյան Գրիգոր , Սարգսյան Տիգրան
Published: December 2023

Ուսումնասիրվել և համեմատվել են տարբեր երկրների նորմերում ներկայումս ընդունված դինամիկ գործակցի որոշման համար տրված մեթոդաբանությունները։ Վերլուծվել են այդ նորմե­րում դինամիկ գործակցի տեսական արժեքի որոշման համար բերվող տարատեսակ բանաձևերը և արժեքները։ Դինամիկ գործակիցը մի բնութագիր է, որը գնահատում է թռիչքային կառուցվածքի արձագանքը դրանով երթևեկող տրանսպորտային միջոցի ազդեցությանից և կապված է թռիչ­քա­յին կառուցվածքի սեփական տատանումներից ու տրանսպորտային միջոցի արագությունից։ Ներ­կայումս տարբեր երկրներ վերանայում են կամուրջների դինամիկ գործակցի որոշման ընթա­ցակարգը, որոնց տարբերությունները ներկայացված են սույն հոդվածում։ Հոդվածում տարբեր երկրների նորմերով հաշվարկվել և համեմատվել են տարբեր թռիչք ունեցող կամուրջների հա­մար դինամիկ գործակիցներ։ Վերլուծվել են նաև ՀՀ-ում դինամիկ գործակցի որոշման առանձնա­հատկությունները։
Լուսացուցային կարգավորվող խաչմերուկների թողունակությունների հաշվարկի եղանակները
Authors: Վարդանյան Եղիազար , Հարությունյան Վալերիկ , Ներսեսյան Չինար , Հարությունյան Արմեն
Published: December 2023

Հոդվածում ամբողջական տեսքով ներկայացվում է կարգավորվող տարբեր խաչմերուկ­ների թողունակությունների հաշվարկման բանաձևեր, որոնց շնորհիվ հնարավոր կլինի հաշ­վար­կել ցանկացած կարգավորվող խաչմերուկի թողունակությունը՝ կարգավորման տարբեր ցիկ­լերի, խաչմերուկի տարբեր երկրաչափական պարամետրերի և երթևեկության տարբեր սխե­մա­ների դեպքում։ Ստացված բանաձևերով հաշվարկելով ցանկացած կարգավորվող խաչմե­րու­կի թողունակությունը, հնարավոր կլինի տրանսպորտային հոսքի ինտենսիվության ավելացման պայմաններում կանխագուշակել խճողումային իրավիճակների առաջացման սահմանները և իրա­կանացնել գործնական միջոցառումներ։
Strategi Promosi Danau Toba di Tapanuli Utara Melalui Media Sosial Instagram @dispar.taput
Authors: Nababan Nopembri Marifin , Astuti Sri Wahyuning
Published: December 2023

Kawasan Tapanuli Utara memiliki tempat wisata yang sudah cukup dikenal oleh khalayak dari domestik hingga mancanegara. Tempat wisata di kabupaten Tapanuli Utara yang cukup terkenal yaitu Danau Toba, sehingga bisa menarik wisatawan untuk berkunjung. Dinas Pemerintah Pariwisata (Dispar) Kabupaten Tapanuli Utara merupakan instansi pemerintah yang menangani pada bidang komunikasi kepada masyarakat Kabupaten Tapanuli Utara. Berdasarkan penelitian ini peneliti akan membahas mengenai Strategi Promosi Danau Toba di Tapanuli Utara melalui Media Sosial Instagram @Dispar.taput. Peneliti melakukan penelitian ini pada Dinas Pemerintah Pariwisata Kabupaten Tapanuli Utara. Penelitian ini dilakukan untuk mengetahui efektivitas media sosial Instagram pemerintah Kabupaten Tapanuli Utara pada masyarakat untuk meningkatkan pengunjung di Danau Toba. Skema penggunaan metode penelitian kualitatif pendekatan deskriptif, penelitian ini menggunakan metode pengambilan data dengan studi literatur, wawancara dan observasi. Hasil pembahasan pada penelitian ini berupa narasi deskriptif yang menjelaskan keefektifan yang dilakukan Dinas Pariwisata Kabupaten Tapanuli Utara kepada masyarakat Tapanuli pada program Promosi Danau Toba melalui Instagram.
Vitamins for the Prevention and/or Treatment of COVID-19: An Umbrella Review
Authors: Remy Daniella , Murphy Gillian , Mravunac Michelle , Medina Daen , Taylor Tina , Konn Cecile , Holloway Colombe , Zheng Ran
Published: December 2023

Objective: This umbrella review synthesizes the existing literature on the role of vitamins for COVID-19 prevention and management. The objective is to elucidate potential preventive and therapeutic dimensions of these vitamins, highlight clinical applicability, and identify avenues for future research.
Methods: A systematic search was conducted using PubMed and Google Scholar, with predefined key words for each vitamin combined with COVID-19-related terms. Narrative and systematic reviews were included, following Cochrane guidelines. AMSTAR scoring was used to assess systematic review quality, while SANRA guidelines were used to evaluate narrative reviews. Data extraction, synthesis, and reference overlap were conducted.
Findings: Narrative reviews (n=14) revealed preclinical benefits of vitamins A, B group, C, D, and E (no research on vitamin K found) in COVID-19 management, with potential for immune modulation and anti-inflammatory responses. Of the systematic reviews (n=44), none included vitamins A or E. Some B vitamins exhibited potential, with significant associations between vitamin C supplementation and reduced COVID-19 severity. Many significant findings were also found between vitamin D deficiency and heightened COVID-19 risks, as well as promising effects of vitamin D supplementation.
Conclusion: Vitamins A, B group, C, D, and E hold mechanistic rationale for combating COVID-19, as suggested by narrative reviews. In systematic reviews, vitamin D deficiency underscores its role in COVID-19 severity, while vitamin C and D supplementation show potential benefits as adjunct therapies. This umbrella review highlights the comprehensive research on the efficacy of vitamins in addressing COVID-19, with challenges that warrant further investigation.
Lipotaping technique pos cervicofacial liposculpture: a guideline
Authors: Valente Sandro Marcelo de Moraes
Published: December 2023

Background and Significance

In the scenario of cervicofacial and aesthetic liposculpture, the majority of patients who undergo these procedures seek an increasingly faster recovery, to return to their daily routine. Previously, several physiotherapy sessions were mandatory for a satisfactory result [1,2].

In this sense, LipoTaping is a great innovation in postoperative physiotherapy, especially cervicofacial. Kinesiotaping is a technique created by Kenso Kase in 1976, using an elastic, porous, adhesive, hypoallergenic tape without active ingredients, which can remain in contact with the skin for several days. Its material, texture, and elasticity are very similar to skin. It is a scientifically based method whose main objectives are to minimize edema (swelling), avoid bruises (purple), and reduce or prevent the formation of fibrosis. Furthermore, LipoTaping improves function and reduces tension in tissues close to scars, helping to prevent dehiscence (opening of points in the scar) [3].

In this aspect, LipoTaping decompresses tissues that have suffered damage in a surgical procedure. The skin is elevated and thus anchoring filaments (which ''open'' the lymphatic vessels) are pulled, allowing greater drainage of the liquid that until then was congested in the interstitium (space between the tissues below the skin), favoring its absorption [4].

The application of LipoTaping reduces pain and improves the mobilization of scar tissue, since the pain caused by the pressure exerted on sensory receptors is relieved through the ripples that the bandage promotes, due to the elevation of the skin. The elastic bandage can remain on the skin for 5 to 7 days and does not replace the modeling belt, and the techniques must be combined. It is up to the specialized professional to assess the best cut to be applied and the tensions that will be used on the tapes. In post-surgical lymphatic drainage, a cut known as “octopus” is used, which is applied following the lymphatic system, called Lymphotaping [5].

Also, patients also benefit from minimizing postoperative muscle pain and correcting some surgical complications. The application prevents complications, accelerates recovery, allows greater autonomy for the patient, and reduces the number of physiotherapy sessions, making it an excellent therapeutic option. The technique can be applied in the first 24 hours of surgery, as the earlier the application, the greater the benefits [1-3].
The Priorities Of RA "Green Economy" In Current Conditions
Authors: Nersisyan Karen , Petrosyan Davit
Published: December 2023

Կանաչ տնտեսությունը համաշխարհային տնտեսության զարգացման ամենատարածված և առանցքային մոդելներից մեկն է։ ՀՀ-ն ի թիվս այլ երկրների ձեռնարկել է տնտեսության «կանաչացման» բազմաթիվ միջոցառումներ տարբեր ոլորտներում։ Հոդվածի նպատակն է բացահայտել այդ միջոցառումների կիրառման արդյունքներն ու ներկայացնել ՀՀ «կանաչ տնտեսության» առաջնահերթությունները արդի պայմաններում։ Հետազոտության խնդիրն է ուսումնասիրել «կանաչ տնտեսության» հայեցակարգային դրույթներն ու դրանց նկատմամբ առկա մոտեցումները, տնտեսության «կանաչացման» առաջավոր փորձը, գնահատել ՀՀ կառավարության «կանաչ տնտեսության» անցմանն ուղղված միջոցառումները։ Նորօրյա մարտահրավերները ենթադրում են այնպիսի քաղաքականություն, որով տնտեսությունների կառավարումն ու կենսագործունեության բոլոր ոլորտ- ները անհրաժեշտ է ներդաշնակեցնել «կանաչ սկզբունքներին», ինչը երկարա- ժամկետ հեռանկարում թույլ կտա ապահովել առանձին տարածքային միավորների, պետությունների և ողջ Երկիր մոլորակի կայուն ու բնականոն զարգացումը, ինչ էլ պայմանավորում է հետազոտության արդիականությունը։ Կայուն զարգացումը՝ պայմանավորված կլիմայական փոփոխություններով, բնական ռեսուրսների ծավալների կրճատմամբ, շրջակա միջավայրի իրավիճակի վատթարացմամբ և այլ գլոբալ հիմնախնդիրներով, առավել արդիական է կապված արդյունավետ և ժամանակին լուծման հետ։ ՀՀ տնտեսության կանաչացման գործընթացի գնահատման համար կիրառվել են համեմատական-վերլուծական մեթոդները։ Գնահատման համար հիմք են հանդիսացել ՎԿ կողմից հրապարակվող ցուցանիշները, Էներգետիկայի համաշխարհային կազմակերպության կողմից հրապարակվող էներգետիկ տրիլեմա ցուցանիշը, կանաչ աճի և կանաչ տնտեսության համաշխարհային ինդեքսները։
Зеленая экономика – одна из самых популярных и ключевых моделей глобального экономического развития. РА, в числе других стран, предприняла множество мер по «озеленению» экономики в различных сферах. Цель статьи – раскрыть результаты применения этих мер и представить приоритеты «зеленой экономики» РА в современных условиях. Задача исследования - изучить концептуальные тезисы «зеленой экономики» и существующие подходы к ним, ведущий опыт «экологизации» экономики, оценить меры правительства РА, направленные на переход к «зеленой экономике». Вызовы сегодняшнего дня предполагают такую политику, посредством которой необходимо гармонизировать управление экономикой и всеми сферами жизни с «зелеными принципами», что в долгосрочной перспективе позволит обеспечить стабильное и нормальное развитие отдельных территориальных единиц, государств и всего мира, что и определяет актуальность исследований. Устойчивое развитие в связи с изменением климата, истощением природных ресурсов, ухудшением состояния окружающей среды и другими глобальными проблемами более актуально при эффективном и своевременном решении. Сравнительно-аналитические методы были использованы для оценки процесса экологизации экономики РА. В основу оценки легли показатели, публикуемые Статистическим комитетом, индекс энергетической трилеммы, публикуемый Всемирной энергетической организацией, а также мировые индексы зеленого роста и зеленой экономики.
Երաժշտության հարցերը «Գեղարվեստ» հանդեսի էջերում
Authors: Ասատրյան Աննա
Published: December 2023

Ծանրակշիռ է ՀԽՍՀ արվեստի առաջին վաստակավոր գործիչ, արվեստաբան, բանասեր, պատմաբան, մատենագետ, հրատարակչական գործիչ, խմբագիր, պրոֆեսոր Գարեգին Լևոնյանի (1872, Ալեքսանդրապոլ – 1947, Երևան) ավանդը խորհրդահայ արվեստագիտության և գրականագիտության զարգացման գործում: Գուսան Ջիվանու որդի Գ. Լևոնյանը, ողջ կյանքը նվիրելով հայ ժողովրդի նյութական և հոգևոր արժեքների ուսումնասիրությանը, քննության է առել արվեստի ու բանասիրության տարբեր ոլորտների բոլորովին չհետազոտված կամ մասամբ ուսումնասիրված հարցեր: Գ. Լևոնյանը երբեմն հանդես է գալիս ոչ միայն որպես տվյալ բնագավառի առաջին ուսումնասիրող, այլև տեսաբան (աշուղագիտություն, մատենագիտություն, կիրառական արվեստի պատմություն ևն): Հայ արվեստաբանության մեջ Գ. Լևոնյանն առաջինն էր, ով ի մի բերեց հայ արվեստի պատմությունը:
Весом вклад первого Заслуженного деятеля искусств Арм. ССР, искусствоведа, филолога, историка, библиографа, издателя, редактора, профессора Гарегина Левоняна (1872, Александрополь – 1947, Ереван) в развитие советского армянского искусствоведения и литературоведения. Сын гусана Дживани, Г. Левонян посвятил всю свою жизнь изучению материальных и духовных ценностей армянского народа, исследовал до того либо вовсе не изучавшиеся, либо изучавшиеся частично вопросы разных областей искусства и филологии. Г. Левонян в отдельных случаях выступал в качестве не только первого иследователя, но и теоретика данной области (ашуговедение, библиография, история прикладного искусства и пр.). В армянском искусствоведени Г. Левонян первым предпринял попытку обобщения истории армянского искусства.
The first Honored Art Worker of the Armenian SSR, art historian, philologist, bibliographer, publishing worker, editor, professor Garegin Levonyan (1872, Aleksandropol – 1947, Yerevan) made a valuable contribution to the development оf Armenian art criticism and literary studies. The son of gusan Jivani, G. Levonyan dedicated his whole life to the study of material and spiritual values of the Armenian people, examined previously not examined at all, or examined but partially issues of various fields of arts and philology. In some instances, G. Levonyan acted as not only the first researcher, but also the theoretician in a specific field (ashugh art studies, bibliography, history of applied arts, etc.). In Armenian art criticism, G. Levonyan was the first to make an attempt to generalize the history of Armenian art.
Նոր բացահայտում Վահրամ Գայֆեճյանի գեղարվեստական ժառանգության մեջ
Authors: Սարգսյան Լիլիթ
Published: December 2023

2022 թ. սկզբին Հայաստանի ազգային պատկերասրահում կատարված ХХ դ. 1-ին կեսի հայ անվանի նկարիչ Վ. Գայֆեջյանի (1879-1960) 1897 թ. «Ինքնադիմանկարի» վերականգնման ընթացքում հայտնաբերվել է հեղինակի մեկ այլ գեղանկարի հատված, որը կտրվել է նրա կողմից և օգտագործվել որպես հիմք։ Ուսումնասիրության արդյունքում պարզվեց, որ այն պատկանում է 1900-ական թթ. վերջի – 1910-ական թթ. սկզբի «Սրճարանում» նկարաշարքին, որն առնչվում է ժամանակի համաշխարհային ավանգարդի միտումներին։ Հոդվածի հեղինակը վերլուծում է ավելի քան հարյուր տարի առաջ տեղի ունե-ցածի պատմությունը, ինչպես նաև խոսում է վերականգնման գործընթացի մասին։
В начале 2022 г. в ходе реставрации в Национальной галерее Армении «Автопортрета» 1897 г. крупного армянского художника первой половины ХХ в. В. Гайфеджяна (1879-1960) был обнаружен фрагмент другой его живописной работы, обрезанной и использованной им в качестве подложки. В результате исследования автор выяснила ее принадлежность циклу «В кафе» конца 1900-х – начала 1910-х годов, который соотносится с тенденциям международного авангарда. Автор статьи анализирует историю более чем столетней давности, а также рассказывает о реставрационном процессе.
At the beginning of 2022, during the restoration at the National Gallery of Armenia of the “Self-Portrait” of 1897 by V. Gayfejyan (1879-1960) – one of the greatest Armenian artists of the first half of the XX century, a fragment of another his painting was discovered, cut off and used by him as a substrate. As a result of the study, the author has found out that it belongs to the series “In the cafe” of the late 1900s – early 1910s, which correlates with the trends of international avant-garde. In the article, the author analyzes the history of what happened more than a hundred years ago, and also tells about the restoration process.
The Role of Thermal Camera in the Assessment of Thyroid Eye Disease Activity
Authors: Prpic Ante , Kasumovic Armin , Guarro Idoia , Matoc Ines , Mirosevic Gorana , Zrinscak Ognjen , Ivekovic Renata , Vickovic Ivanka , Loncar Valentina , Vatavuk Zoran , Sabol Ivan
Published: December 2023

Background: Thyroid eye disease (TED; also known as thyroid - associated orbitopathy, Graves ophthalmopathy) is an autoimmune inflammatory disease which presents in typical signs and symptoms such as deep orbital pain, chemosis with or without caruncular edema, unilateral or bilateral proptosis, eyelid retraction, eyelid edema or erythema, restrictive strabismus and compressive optic neuropathy. Objective: The aim of this study was to investigate the role of thermal camera in the assessment of thyroid eye disease (TED) activity compared to the Clinical Activity Score (CAS) scale, exophthalmometry values, and thyroid hormone and antibody levels. Methods: A total of 50 patients participated in this cross-sectional study of whom 29 were in the active phase of TED according to the sum on CAS scale and 21 patients in the inactive phase. The Flir E8® thermal camera was used to measure the temperature of the orbital area and the values were compared with the CAS scale, exophthalmometry values and thyroid hormone and antibody levels. Results: Higher values of temperature (p>0.0001), CAS score (p>0.0001), exophthalmometry (p=0.022), FT4 (p=0.0176) and TRAb (p=0.0091) were found in patients in the active phase of TED. Temperature of orbital area showed statistically significant positive correlation with CAS scale (p=0.0001), exophthalmometry values (p=0.0022) and anti-TPO levels (p=0.019). Conclusion: Thermal camera showed higher values of the temperature of the orbital area in patients in the active phase of the disease and positively correlated with the CAS scale, exophthalmometry findings and anti-TPO levels.
Utilization of ChatGPT in Medical Education: Applications and Implications for Curriculum Enhancement
Authors: Department Medical , Ireland St
Published: December 2023

Background: The integration of artificial intelligence (AI) into medical education has sparked a paradigm shift in pedagogical approaches, reshaping the way medical knowledge is accessed, processed, and applied. Medical education is a dynamic field that demands continuous adaptation to the evolving healthcare landscape. ChatGPT, an advanced AI language model, with its natural language understanding and generation capabilities, offers a multifaceted toolset that enhances various aspects of medical education. Objective: The objective of this paper is to explore how ChatGPT, an advanced AI language model, is transforming medical education by serving as a dynamic information resource and driving curriculum reform. It aims to highlight the multifaceted uses of ChatGPT and its potential to reshape the pedagogical landscape in medical education.Methods: PubMed, Scopus, Web of Science, ERIC, and Google Scholar databases were searched to assess the literature that met the study objectives from 2019 to August 2023 with explicit inclusion and exclusion criteria. Results: The results demonstrate that ChatGPT’s applications in medical education are diverse and encompass real-time curriculum adaptation, personalized learning, and collaborative learning. Its capacity to provide immediate and contextually relevant information has the potential to enhance the quality of medical education significantly. Conclusion: ChatGPT’s integration into medical education represents a transformative shift in educational approaches. It offers a wide range of capabilities, from serving as a repository of medical knowledge to facilitating collaborative learning. As medical education continues to evolve, ChatGPT emerges as a powerful tool that can reshape pedagogy and drive meaningful curriculum reform to meet the needs of modern healthcare practice.ChatGPT emerges as a transformative tool that holds the potential to reshape the landscape of medical pedagogy and drive meaningful curriculum reform.
Synchronous Primary Malignant Neoplasms of Cervix and Endometrium: A Rare Case Report
Authors: Sonwani Tarini , Khanna Gaurav
Published: December 2023

Background: Female genital tract synchronous primary tumors are highly uncommon. Synchronous tumors affecting both the endometrium and the cervix are uncommon. We discuss a rare instance of a 71-year-old woman with uterine endometrioid adenocarcinoma and squamous cell carcinoma (SCC) of the cervix.
Case report: A 71-years old unmarried woman presented with postmenopausal bleeding for two months. Per speculum examination showed a tiny growth at the external os. Rectovaginal examination revealed ballooned up cervix with growth ~4-5cm, bulky uterus ~8 weeks in size, normal bilateral parametria, and rectal mucosa. MRI revealed a mass in the uterus involving the cervix and lower uterine segment with enlarged bilateral internal iliac lymph nodes. Endometrial biopsy was reported as a poorly differentiated carcinoma. She underwent radical hysterectomy with bilateral salpingo-oophorectomy, bilateral pelvic lymph node dissection, para-aortic lymph node dissection, and infracolic omentectomy. Final histopathology revealed the synchronous occurrence of primary neoplasms of SCC of the cervix (stage Ib3) and endometrioid adenocarcinoma endometrium (stage Ib). She received adjuvant radiation therapy and was clinically disease-free 26 months post-surgery.
Conclusion: Synchronous malignancies of the endometrium and cervix are rare. Knowledge of synchronous primaries' occurrence is needed to plan appropriate adjuvant treatment. Adjuvant treatment is based on the stage of individual primaries. The presentation stage and extent of the disease determine the prognosis of the patients.
Designing and Manufacturing the Cryoconcentration Equipment (Cold Concentrator) and Apply It to Concentrate a High-quality Product from Dragon (Hylocereus) Fruit Juice
Authors: Nguyen Tan Dung , Chau Thanh Tuan , Do Thuy Khanh Linh
Published: December 2023

Dragon (Hylocereus) fruit juice is a nutrient-rich solution that can be easily infected by environmental microorganisms, causing fermentation and spoilage, leading to a short preservation time. Fruits and other food Have been preserved by methods – cold storage, concentration, or vacuum concentration – that are energy-intensive or lead to a quick reduction in the product's quality. The cryoconcentration method used in dragon fruit is one of the reasonable ways to preserve vitamins, bioactive compounds, and nutritional ingredients. However, there is no widespread usage or production of equipment specifically designed for a cold concentrator. This study aims to calculate, design, and manufacture the concentrator equipment named CCE-03. The manufactured equipment has a capacity of 5L per batch, with a -10 to -35 °C concentration ambient, a concentration-time from 1.5 to 6 hours, a defrosting temperature of 10 to 25 °C, and is controlled by an automatic measuring device operated through a computer, and works stably. The concentrating process takes 1.6 hours; the energy cost is 0.48kWh/L of the product. The product concentration is 46.6%, and the loss of vitamin C content is 11.3%. The concentrated dragon juice is high-quality.
المناعة التنظيمية ودورها في الحد من الازمات الرياضية بالأندية الرياضية في محافظة ديالى
Authors:   كلية الفنون الجميلة، جامعة ديالى، ديالى، 32001، العراق, جارالله عبد الله احمد , محمود جبار حيدر ,   مديرية تربية ديالى، ديالى، 32001، العراق, قحطان مالك علي صابرين ,   مديرية تربية ديالى، ديالى، 32001، العراق
Published: December 2023

يتضح من جدول (5) والخاص التكرار والنسبة المئوية والدلالات الاحصائية الخاصة بعبارات المحور الاول (أبعاد المناعة التنظيمية داخل الاندية الرياضية) ان نسبة موافقة عينة البحث الاساسية تراوحت ما بين (32.50% إلى 98.33%) وبترتيب العبارات كما هو موضح بالجدول. وبالنسبة للبعد الاول ( التعلم التنظيمي)، قد حازت العبارات ارقام (1/1، 1/6، 1/7، 1/8) على نسبة موافقة تراوحت ما بين (69.58% : 82.50%) في اتجاه (نعم) والتي تشير الى أن التعلم التنظيمي يتمثل في (يمتلك النادي عاملين ذوى خبرة، يراعى العاملين الاقتصاد في الوقت والجهد والتكاليف عند انجاز المهام ، يشجع النادي على نقل المعرفة وتبادل الخبرات بين العاملين، يصنع النادي أزمات افتراضية وتدرب العاملين على تخطيها)، وقد حازت العبارة رقم (1/2) على نسبة موافقة قدرها (32.50%) في اتجاه (لا) والتي تشير الى أن النادي يتبنى أنظمة تدريب حديثة ومتطورة. يتضح من جدول (6) والخاص التكرار والنسبة المئوية والدلالات الاحصائية الخاصة بعبارات المحور الثاني (انواع الازمات والاجراءات الادارية للحد من الازمات الرياضية بالأندية الرياضية)ان نسبة موافقة عينة البحث الاساسية تراوحت ما بين (23.33% إلى 100% ) وبترتيب العبارات كما هو موضح بالجدول ،وبالنسبة (الازمات التنظيمية والإدارية)، قد حازت العبارات ارقام (1/1/1، 1/1/2، 1/1/3، 1/1/4، 1/1/5، 1/1/6، 1/1/7 ) على نسبة موافقة تراوحت ما بين (71.25% : 86.25%) في اتجاه (نعم) والتي تشير الى (عدم وضوح الأهداف العامة للعاملين في الاندية الرياضية، عدم الإدراك الصحيح لكيفية التعامل مع المواقف المتغيرة والمعقدة، الدراسة الغير كافية للخطط المقررة للأندية الرياضية، سوء توزيع المهام والاعمال علي العاملين بالأندية الرياضية، سيادة المعلومات غير الدقيقة التي تؤدى إلى وقوع الأزمات، سيطرة المصالح الشخصية لمسئولي الأندية الرياضية علي المصلحة العامة، الاستهانة بالأزمات وعدم الاستعداد الجيد لمواجهتها)