bluuebunny/crossref_metadata_2025 huggingface dataset:
POLİESTER KUMAŞIN EKOLOJİK BOYAMA İŞLEMİ OPTİMİZASYONU İÇİN YANIT YÜZEY METODOLOJİSİ YAKLAŞIMI
Authors: Toprak-çavdur Tuba , Çelik Tolga , Çavdur Fatih
Published: August 2024

Poliester liflerinin hidrofobik yapısı, yüksek kristalinitesi, lifleri oluşturan makromoleküller arasındaki yüksek çekim kuvveti gibi özellikleri boyanmasında önemli kısıtlar oluşturur. Ayrıca, poliesterin boyanmasında kullanılan yöntem ve kimyasallar çevre için zararlıdır. Bu çalışmada, bu sınırlamaları ortadan kaldırmak ve daha çevre dostu boyama prosesi geliştirmek amacıyla, poliesterin doğal boya ile boyanabilirliği ve yanıt yüzey metodoloji ile işlem parametrelerinin optimizasyonu araştırılmıştır. Bu kapsamda öncelikle pH, sıcaklık ve süreden oluşan üç faktör için Box-Behnken deneysel tasarımından baz alınan üç seviye belirlenerek bunlara yönelik deneysel çalışmalar gerçekleştirilmiştir. Gerçekleştirilen deney sonuçlarına bağlı olarak L*, a*, b*, C* gibi farklı çıktıları tahmin etmek için kullanılabilecek bir meta model oluşturmak amacıyla yapılan incelemelerde, literatürde de genel olarak kullanılmakta olan ikinci dereceden bir modelin ilgili sonuçlarını tahmin etmede başarılı olduğu (𝑅2 ≥ 0,9) ve bazı tasarımlarda ilgili 𝑅2 değerlerinin 0,99 seviyelerine yaklaşmakta olduğu gözlenmiştir. Benzer şekilde bazı çıktılar için 0,1720 ortalama mutlak hatayla deney sonuçlarını tahmin edebildiği görülmektedir. Buna ek olarak, oluşturulan model denklemlerinden teorik optimal boyama koşulları tespit edilmiştir. Sonuçlar poliesterin boyanmasında pH-sıcaklık ve pH-süre ikililerinin, sıcaklık ve süreye göre çok daha etkili olduğunu ve ayrıca alınan yüksek yıkama haslıkları bu boyama prosesinin açık-orta tonlarda sürdürülebilir boyamalar için kullanılabileceğini göstermiştir. Ayrıca bu çalışmanın maliyet ve zaman tasarrufu sağlama potansiyeli de vardır.
FISTIK KABUĞU İLE SULARDAN METİLEN MAVİSİ GİDERİMİNİN ATIK YÖNETİMİ YAKLAŞIMIYLA İNCELENMESİ
Authors: Çelebi Hakan , Tulun Şevket , Şimşek İsmail , Bahadır Tolga , Bilican İsmail
Published: August 2024

Boyar maddelerin kullanımının yaygınlaşması, özellikle tekstil endüstrisinin gelişmesi su kirliliğinin en önemli nedenlerinden bir olan boya kirliliğini oluşturmaktadır. Günümüzde metilen mavisi (MM), tekstil endüstrisinde yaygın olarak kullanılan boyar maddedir. Bu çalışmada, atık olarak kabul edilen ham fıstık kabuğunun (FK) adsorban olarak kullanılarak MM’nin giderim şartları incelenmiştir. Herhangi bir işlem yapılmadan alınan FK’leri farklı miktarlarda (0,1, 0,5, 1, 2, 3, 5 g), farklı işletme sürelerinde (5, 10, 15, 30, 45, 60, 90, 120, 150 dk), farklı pH değerlerinde(2, 4, 6, 8, 10, 12) ve farklı sıcaklıklarda (20, 25, 30, 35, 40 °C) giderim verimine etkileri araştırılmıştır. Yapılan çalışmalarda, en uygun adsorpsiyon şartları şu şekildedir: FK miktarı 0,5 g, işletme süresi 15 dakika, pH 4, sıcaklık 20 °C olarak bulunmuştur. İzoterm modellerinin korelasyon değerleri incelendiğinde en yüksek korelasyon değeri Langmuir izotermine (R2= 0,9127) olduğu belirlenmiştir. Gerçekleşen adsorpsiyon mekanizması FK’ nin yüzeyinde tek bir tabaka halinde MM tutulduğu sonucuna varılmıştır. Herhangi bir işlem yapılmadan kullanılan FK’ nin yeşil atık yönetimi yaklaşımı ile boyar madde giderimi için uygun bir adsorban olarak kullanılabileceği belirlenmiştir.
DEĞİŞTİRİLMİŞ GERİLME ÇİFTİ TEORİSİ İLE GÖZENEKLİ FONKSİYONEL DERECELENDİRİLMİŞ KONSOL NANOKİRİŞLERİN STATİK ANALİZİ
Authors: Kafkas Uğur
Published: August 2024

Üretim aşamasında çeşitli sorunlar sebebiyle gözenek oluşumu fonksiyonel derecelendirilmiş kirişlerde sıkça görülen bir olaydır. Bu çalışmada gözenekli fonksiyonel derecelendirilmiş konsol nano-kirişlerin değiştirilmiş gerilme çifti teorisi çerçevesinde sonlu elemanlar yöntemi kullanılarak statik yükler altında düşey yer değiştirmeleri incelenmiştir. Fonksiyonel derecelendirilmiş kirişlerin malzeme dağılımlarında güç kanunu teorisi, gözenek dağılımı içinse düzenli ve düzensiz dağılım olmak üzere iki model kullanılmıştır. Çalışma kapsamında gözeneksiz ve gözenekli fonksiyonel derecelendirilmiş konsol nano-kirişlerin düşey yer değiştirmelerinde, gözenek dağılım modellerinin, gözeneklilik parametresinin, değiştirilmiş gerilme çifti teorisinden gelen malzeme uzunluk ölçeği parametresinin ve güç kanunu parametresinin etkisi tablolar ve şekiller vasıtasıyla sunulmuştur. Malzeme uzunluk ölçeği parametresinin nano-kirişin rijitliğinde arttırıcı bir etkisi olduğu ve düzensiz gözenek dağılımına sahip nano-kirişlerin, düzenli gözenek dağılımına sahip olanlara göre daha rijit davrandığı sonucuna ulaşılmıştır.
Culturing 3T3 Cells for Validating GEARBOCS Constructs v2
Authors: T Savage Justin
Published: August 2024

This protocol is for culturing Cas9 NIH/3T3 cells for the validation of GEARBOCS 2.0 and similar constructs for use in in vivo assays.
Osmia lignaria laboratory rearing protocol v2
Authors: F. Williams Mary-Kate , K. Boyle Natalie , N. Schaeffer Robert , L Cox-Foster Diana
Published: August 2024

Our protocol was designed to rear Osmia lignaria Say (Hymenoptera: Megachilidae) from immature stages to adult emergence following their natural phenology in northern Utah. Many aspects of the bee's biology can be analyzed using this protocol, including ecology, genetics, microbiome, pathology, toxicology, and pollinator management. An individual bee can be observed as a response to a treatment group, and its development and survival can be measured. The interaction of various stressors can help define synergistic, antagonistic, and additive effects, including acute, sublethal, and chronic treatment responses. Osmia lignaria was used as a model to rear solitary bees in a laboratory setting.
AAV Production and Purification v2
Authors: T Savage Justin
Published: August 2024

This protocol is for the production and purification of Adeno-Associated Virus. The protocol contains the necessary steps to produce AAVs from HEK293T cell cultures.
USDA LTAR Common Experiment measurement: Natural pest suppression v1
Authors: Haan Nate
Published: August 2024

Pest suppression is a key ecosystem service worth billions of dollars annually, and it can vary with local management practices and landscape context. We propose to measure biocontrol services by deploying plasticine caterpillar mimics that record imprints of attacks by other organisms. Plasticine caterpillars are an easy and standardizable method indicating the attack rates on herbivorous lepidoptera larvae (Low et al. 2014, Howe et al. 2009, Haan & Landis 2023). They have been used successfully to study high-profile predation and its variation (e.g., Roslin et al. 2017). They also help identify the attacking organisms; bird beaks, arthropod mandibles, parasitoid wasp ovipositors, and small mammal teeth leave unique signatures on the dummy caterpillars.
Optimization of process parameter of FS-welding of aluminum-lithium alloy (AA8090) by using desirability analysis
Authors:   Department of Mechanical Engineering, National Institute of Technology, Kurukshetra, India, Dahiya Munna Singh , Gupta Meenu ,   Department of Mechanical Engineering, National Institute of Technology, Kurukshetra, India
Published: August 2024

This study explores the potential of Friction Stir Welding (FSW) for Aluminum Lithium (AA8090) Alloys, emphasizing the crucial role of experimental investigations in optimizing the FSW process. Using a vertical machine center (VMC) with a customized fixture and tool for FSW, factors like Rotational speed (RS), Tilt angle (TA), and Welding Speed (WS) are considered to enhance ultimate tensile strength (UTS) and % elongation (EL). A regression model based on Response Surface Methodology's Central Composite Design (CCD) is used to analyze UTS and % EL. The effectiveness of welded joints is comparable to the parent metal, with optimal UTS and EL achieved at 1428 rpm rotational speed, 36.4 mm/min welding speed, and 1.5° tilt angle. While significant interaction effects are observed in UTS, none are noted in EL. FSW joint performance is evaluated through microstructural analysis, microhardness distribution and fractography analysis.
Influence of palm oil fuel ash as agricultural waste on the environment and strength of geopolymer concrete
Authors:   Civil Engineering Department, University of Kirkuk, Kirkuk, Iraq, Abdulhaleem Khamees N , Hamada Hussein M. ,   Al-Qalam University college, Kirkuk 36001, Iraq, Majdi Ali ,   Dept. of Building and Construction Techniques, Al Mustaqbal University College, 51001 Hilla, Babylon, Iraq, Yousif Salim T. ,   Dept. of Civil Engineering, College of Engineering, Nawroz University, Kurdistan, Iraq
Published: August 2024

The utilization of agricultural waste in concrete has gained important attention owing to its potential to improve sustainability and reduce environmental impact. Palm oil fuel ash (POFA), a by-product of the palm oil industry, is one of the agricultural waste materials that has shown promise as a supplementary cementitious material (SCM) in geopolymer concrete (GPC). This paper presents a comprehensive review of the influence of POFA on the environment and strength properties of GPC. The review highlights the chemical composition and physical properties of POFA, its environmental impact, and the challenges and potential strategies for its sustainable utilization. The main factors affecting the strength enhancement or reduction in GPC containing POFA are discussed, including the optimal replacement level and curing condition. The results reveal that the silica oxide in POFA ranges between 55.7% and 69.02%, depending on the POFA source and treatment conditions. The increase in POFA replacement from 0 to 20% led to an increase in the compressive strength of GPC from 28.1 to 30.1 MPa, while in another case the compressive strength decreased from 24 to 18.5 MPa for the same replacement level. There is no specific optimum replacement level. However, the low replacement levels between 0 and 20, are the best. The review also summarizes experimental studies evaluating the effect of POFA on GPC strength. In general, the review provides valuable insights into the use of POFA in GPC and suggests future research directions to enhance its utilization and sustainability in the construction industry.
SCIENTIFIC ACHIEVEMENTS OF SCIENTISTS IN THE IMPROVEMENT OF WATER RECLAMATION OF UKRAINE IN THE 1990s
Authors:   Institute of Water Problems and Land Reclamation of National Academy of Agrarian Sciences of Ukraine, Kyiv, Ukraine, Yehorova Svitlana
Published: August 2024

The purpose of the article is to establish the scientific achievements of scientists of branch research institutions and institutions of higher education in the improvement of water reclamation for different soil and climatic conditions of Ukraine in the 1990s. The research methodology is based on the use of general scientific methods: analysis, synthesis, systematization and classification of archival materials and printed sources. In the course of the research special historical methods were used: problem-chronological, comparative-historical, retrospective, which helped to determine the priority areas of activity of prominent agricultural scientists, their scientific achievements in improving water reclamation of Ukraine: irrigation and drainage. Results. It is established that in the 1990s an important role for the development of scientific support for the regulation of water reclamation in Ukraine was played by highly effective measures developed by agricultural scientists for optimal irrigation and drainage of land. It is determined that scientists have developed technological equipment for sowing crops and applying mineral fertilizers with irrigation water. The efficiency of creation of irrigation systems and technical means of irrigation of new generation, ecologically reliable reclamation systems and technologies is found out. Improvement of mechanized technologies of production and application of local organic fertilizers – sapropel and silt is established. It was found that scientists have attached great importance to the development of a comprehensive system for improving water reclamation: rational structure of sown areas and crop rotations, tillage and fertilization, agronomic and reclamation measures to prevent degradation of irrigated and drained lands. Conclusions. It can be concluded that in the 1990s, high-performance technologies for the conservation and efficient use of water and land resources played an important role in improving Ukraine's water reclamation. They were based on the scientific achievements of scientists from the Institute of Hydraulic Engineering and Land Reclamation of the Ukrainian Academy of Agrarian Sciences, as well as their co-performers who performed research in different soil and climatic conditions of Ukraine.
MANAGEMENT DECISION MAKING IN PUBLIC ADMINISTRATION INFORMATION SYSTEMS IN SOUTH AFRICA: THE ROLE OF THE AUDITOR GENERAL OF SOUTH AFRICA IN IMPROVING EFFECTIVENESS
Authors: Latchu A. , Singh S.
Published: August 2024

The Auditor General of South Africa (AGSA), a statutory body that evaluates public sector information systems, is the main corporate governance instrument in the study. The different methods of corporate governance are explained in this article. The article examines the barriers to improving public sector information systems. Our analysis will focus on the efficiency of information systems in the public sector, closely linked to South Africa’s National Development Plan 2030 and the Medium Term Strategic Framework, critical measures to achieve success. The study uses Atlas.ti 7 for qualitative textual analysis. This software analyses textual data from the 2017–2021 AGSA reports.

This thematic study highlights the micro and macro challenges faced by South Africa’s public sector governance institutions. The problems stem from deficiencies in the information system, changes in the leadership, and a lack of transparency and access to information. We also face smaller issues such as a lack of executive accountability for their decisions, inadequate technology skills, ineffective project management, no disaster recovery procedures, declining IT governance and delays in filling key IT positions.

The study suggests promoting a transformative mindset to raise awareness of the critical role of information technology in public sector management. It also highlights the need to identify South African corporate governance practices that hinder information systems. The paper aims to improve the corporate governance framework for information systems in order to maximise the efficiency of the public sector.
Criminal Law Characteristics of the Forms of Use of Prohibited Means and Methods of Warfare
Authors: Mironenko S. Yu.
Published: August 2024

The use of prohibited means and methods of warfare and other war crimes are quite common in the modern world. During armed conflicts, the rights of prisoners of war and civilians are often violated, historical and art monuments are destroyed, and irreparable damage is caused to the natural environment. The study analyzes such forms of use of prohibited means and methods of warfare as: a) ill-treatment of prisoners of war; b) ill-treatment of the civilian population; c) deportation of the civilian population; d) looting of national property in the occupied territory; e) the use of means and methods in armed conflict prohibited by the international treaty. The analysis of the forms of use of prohibited means and methods of warfare proves that the disposition of the main composition of this crime defines alternative acts in its commission, each of which, in turn, forms the complete composition of the crime provided for in Part 1 of Article 356 of the Criminal Code of the Russian Federation. A feature of the legislative definition of the objective element of the use of prohibited means and methods of warfare is both a descriptive and a blank definition of the signs of this crime. The content of the main forms of this crime is defined in the disposition of Article 356 of the Criminal Code of the Russian Federation, and many other forms are defined in the relevant international agreements of the Russian Federation. In this case, we are talking about the double wrongfulness of the specified act.
Eosen Yaşlı Çeltek Formasyonunun Çeltek (Amasya) ve Sorgun (Yozgat) Sahalarındaki Organik Jeokimyasal İncelemeleri ve Hidrokarbon Üretme Potansiyelleri
Authors: Erdoğan Ebru , Sarı Ali , Murat Abdurrahman
Published: August 2024

Bu çalışmada, Çeltek (Amasya) ve Sorgun (Yozgat) sahalarındaki Eosen yaşlı bitümlü şeyllerin organik jeokimyasal özellikleri yardımıyla, bölgenin çökelim ortam koşullarının ve hidrokarbon potansiyellerinin değerlendirilmesi amaçlanmıştır. Bu amaçla da örneklerde; Rock-Eval piroliz, özütleme, Gaz Kromatografisi (GC), Modified Fischer Assay (MFA) ve organik fasiyes analizleri yapılmıştır. Mükemmel kaynak kaya özelliğine sahip olan bitümlü şeyllerin TOC değerleri Çeltek (Amasya) sahasında ortalama %9,71 ve Sorgun (Yozgat) sahasında ise ortalama %6,19’dur. HI, HI-OI, HI-Tmax, S2-TOC, S2/S3 parametreleri ve organik petrografik verilere göre kerojen tipleri; Çeltek (Amasya) sahasında Tip-I ve Tip-II, Sorgun (Yozgat) sahasında ise Tip-II’dir. Çeltek (Amasya) ve Sorgun (Yozgat) sahalarına ait örneklerin Tmax ortalamaları sırasıyla 439,6℃ ve 435,04℃’dir. Olgunlaşma ve Bitümen İndeksi değerlerine göre Çeltek (Amasya) sahasında örnekler atım başlangıcında iken Sorgun (Yozgat) sahasında ise hidrokarbon atımının olmadığı tespit edilmiştir. MFA analizine göre Çeltek (Amasya) sahasına ait örneklerin % petrol verimleri ortalama %5,13 olup orta ekonomik bir potansiyelde iken Sorgun (Yozgat) sahasında ise örneklerin ortalama % 2,20 petrol verimi ile ekonomik bir petrol potansiyellerinin olmadığı belirlenmiştir.
Effect of Low Protein Diet on Patients with Cardiovascular Disease: A Systematic Review and Meta-Analysis
Authors: Ding Mingtao , Liu Lei
Published: August 2024

Background: Low protein diet plays an important role in cardiovascular diseases. However, exact role is unclear so far. We aimed to find out the effect of low protein diet on patients with cardiovascular disease.
Methods: The PRISMA guidelines were followed throughout the research project until 10th Apr 2023. MeSH phrases and Boolean operators were used to search PubMed for suitable studies. The entire estimate was expressed as a 95% confidence interval around the mean difference. The model was picked because of the discrepancies found in the research. Choi's Q test and I2 statistics were used to determine the degree of variation between experiments. The funnel plot was used to qualitatively examine the publishing bias.
Results: Low-protein diets have a greater impact on waist circumference [-8.82 (-9.51, -8.13), P<0000.1] and high-density lipoprotein (HDL) [-0.05 (-0.07, -0.03), P<0000.1] alteration than non-LPD diets, as measured by the standard mean difference (SMD). Further, significant changes were observed in weight loss [1.51 (1.25, 1.77), P<0.00001], BMI, [0.46 (0.25, 0.67), P<0.0001], change systolic [2.48 (1.20, 3.77), P=0.0002] and diastolic blood pressure [1.49 (0.72, 2.26), P=0.0002], low density lipoprotein [0.09 (0.06, 0.12), P<0.00001], triglyceride [0.52 (0.49, 0.55), P<0.00001], in non-LPD group as compared to LPD group.
Conclusion: The results indicated the role of low protein diet on patients with cardiovascular disease.
Effects of Emotional Labor, Work–Life Balance, and Empowerment on the Professional Quality of Life of Korean Nurses
Authors: Kim In Sun , Yoon Hee Jeong , Hong Yeon Ran
Published: August 2024

Background: This descriptive survey study aimed to investigate the effects of emotional labor, work–life balance, and empowerment on nurses’ professional quality of life (ProQOL) and provide foundational data for improving the ProQOL of Korean nurses.
Methods: Nurses who had been working for at least six months in hospitals in Yeosu, Suncheon, and Gwangyang, the Republic of Korea, were surveyed in April 2022. Using a structured questionnaire, data were collected on general characteristics, emotional labor, work–life balance, empowerment, and ProQOL. The collected data were analyzed using frequency analysis, independent t-tests, analyses of variance, post-hoc tests, Pearson’s correlation analysis, and multiple regression analysis.
Results: ProQOL was negatively correlated with emotional labor (r=-0.550, P<0.001) and positively correlated with work–life balance (r=0.680, P<0.001) and empowerment (r=0.454, P<0.001). Emotional labor (β=-0.27, P<0.001), work–life balance (β=0.44, P<0.001), and empowerment (β=0.28, P<0.001) were identified as the predictors of ProQOL, such that reduced emotional labor and increased work–life balance and empowerment enhanced ProQOL. These factors explained 62.1% of the variance in the ProQOL of Korean nurses (F=42.86, P<0.001).
Conclusion: To enhance the ProQOL of Korean nurses, it is vital to help them adjust their work–life balance, decrease their emotional labor, and increase their empowerment.
Effect on Non-Small Cell Lung Cancer After Combination of Driver Gene Mutations and Anti-PD -1/PD-L1 Immunotherapy as Well as Chemotherapy
Authors: Huang Zhengming , Yu Long , Chen Weisong , Zhu Dan , Chen Hui
Published: August 2024

Background: We aimed to reveal the correlation between pathological indicators and PD-L1, between gene mutation status in lung cancer through clinico-pathological data and lung cancer-related gene mutation and PD-L1 expression analysis.
Methods: The study was conducted in . PD-L1 testing and targeted gene mutations detection were evaluated. The clinical characteristics of these non-small cell lung cancer (NSCLC) samples have been obtained. The groups were grouped according to clinico-pathological features and PD-L1 expression (Yes/No or High/Low), and the clinico-pathological and genetic and molecular features and correlation with PD-L1 expression were compared across the above groups. Comparisons and analyses were made between different treatment schemes.
Results: Lung adenocarcinoma (LUAD, n=142) and lung squamous carcinoma (LUSC, n=143) samples were enrolled (median age: 64 years old). Pleural invasion and M staging were significantly different from PD-L1 alterations (P<0.05). The percentage of patients with PD-L1 tumor proportion score (TPS)≥50% was 36.24% and the percentage of patients with PD-L1 TPS<50% was 29.53%. The percentage of patients with PD-L1 high-expressed and treated by immunotherapy was 75.93% and 63.41% experienced Partial Response/Complete Response. The mutations ratio of EGFR, ALK, KRAS, MET, RET and TP53 were 28.86%, 1.34%, 6.04%, 0.67%, 1.34% and 0.67%, respectively. KRAS mutation was significantly different from PD-L1 alterations (P<0.01).
Conclusion: There are individual differences in PD-L1 expression, which can also vary depending on the different clinical features. Specific molecular features correlate with differential PD-L1 expression and may influence the response to therapy.
How Vulnerable Are the Elderly in Road Traffic - Autopsy Study?
Authors: Slović Živana , Andrić Ivana , Todorović Danijela , Mihajlović Filip , Đorđević Snežana , Mihaljević Olgica , Todorović Miloš , Vitošević Katarina
Published: August 2024

Background: The aim of this study was to analyze characteristic and pattern of road traffic injuries in this special aging group, as well to examine the relevance of certain injuries or risk factors to outliving the injuries.
Methods: This epidemiological, analytical, retrospective, autopsy study investigated the road traffic deaths for period between 2001 and 2022. The subjects were divided into two age groups, elderly (65 years and older) and middle aged (16-64 years old).
Results: We included 213 (32%) elderly participants out of all 665 RTA subjects who died from sustained injuries or complications of the injuries. The majority of elderly subjects (61%) were pedestrians, and elderly participants in RTA were more likely to survive the injuries. The most common injuries among the elderly in all group of participants were chest injuries 81% (and among them, rib fractures were present in 76%). Cranio-cerebral injury is the most common cause of death in RTA subjects, singular (45%) or in combination with other causes. In the group of elderly RTA subjects complication of injury is represented in 36 subjects (17%), while as cause of death is represented in 22 subjects (10%). Elderly are less likely to have positive BAC, and even in cases when BAC was increased, the levels were on the lower scale.
Conclusion: More effort should be made to enhance road safety for elderly pedestrians, especially considering the expected rapid growth in the elderly population.
Nurses' Perspectives on Risk Factors and Strategies to Control Workplace Violence: A National Survey in Vietnam
Authors: Minh Do Sinh , Nguyen Nguyet Thi , Mai Anh Thi Lan , Thuy Vu Mai Thi
Published: August 2024

Background: We aimed to describe nurses' perspectives on risk factors and strategies to control workplace violence.
Methods: To accomplish the study objectives, an online cross-sectional questionnaire-based investigation was conducted. The scales were developed in accordance with the guidelines provided by reputable organizations such as the International Labour Office (ILO), International Council of Nurses (ICN), WHO, and Public Services International (PSI), as well as previous scholarly works. Prior to implementation, the validity and reliability of the Likert scales were rigorously tested. The survey, conducted from March to May 2022, encompassed 163 public hospitals in Vietnam and was completed by 2,280 nurses employed in these institutions.
Results: According to nurses' perceptions, several key risk factors contribute to workplace violence (WPV). These include low socio-cultural awareness among patients and their family members, overcrowding in hospitals, non-compliance with hospital regulations, unrealistic expectations regarding treatment outcomes, communication issues among staff members. To effectively control WPV, nurses propose a range of strategies. These include enhancing the quality of hospital services and the hospital environment, fostering a positive workplace culture, establishing a comprehensive system for reporting and responding to incidents of WPV and developing patient care protocols. These strategies are believed to mitigate the occurrence and impact of WPV, ensuring a safer and more secure work environment for nurses.
Conclusion: Workplace violence in healthcare settings is influenced by organizational, clinical, and environmental risk factors. Nurses adopt a multi-component approach to manage workplace violence. This study provides valuable insights for developing effective strategies to combat workplace violence in Vietnam.
Quality of Life and Functional Status of Patients with Lumbar Radiculopathy
Authors: Mahmutović Elvis , Safiye Teodora , Biševac Emir , Ajdinović Aldina , Salihagić Zerina , Minić Slaviša , Dolićanin Zana
Published: August 2024

Background: Quality of life (QL) of patients with lumbar radiculopathy (LR) stands for personal experience of the functional effect of the ailment and therapy applied to the patient. We aimed to evaluate the QL in patients with LR before the start of treatment, as well as three and six months following the start of medical rehabilitation, that was prescribed and implemented.
Methods: The research was conducted at the Special Hospital for Progressive Muscular and Neuromuscular Diseases in Novi Pazar, Serbia, from 2014 to 2016. A stratified, randomized sample included fifty patients with LR. All patients had an educational training program in ergonomics, physical therapy procedures, and kinetic and ergonomic therapeutic procedures as part of the conservative treatment. We employed two standardized questionnaires, the Oswestry Disability Index (ODI) and the SF-36, to evaluate the patients' condition, their QL, and the effectiveness of rehabilitation treatment.
Results: In terms of SF-36 - PCS, SF-36 - MCS, and ODI, the lowest values were noted at the start of rehabilitation (PCS:35.5; MCS:37.8; ODI:51.5%). Three months later, there was a significant improvement in the scores (PCS:42.8; MCS:45.2; ODI:38.9%), and six months later, the scores were somewhat higher (PCS:49.2; MCS:40.6; ODI:23.7%) (P<0.01).
Conclusion: When comparing the conditions, the QL and functional status of patients with LR are significantly improved. They were better at three and six months compared to the start of rehabilitation and at six months compared to the condition at three months.
Investigating the Potential Impact of CCR5-Δ32 Variant on COVID-19 Outcome: A Case-Control Study in Iranian Population
Authors: Mashayekhi Parisa , Omrani Mir Davood , Amini Asma Olhosna , Omrani Mohammad Amin , Milani Shahla Ganbari
Published: August 2024

Background: The impact of CCR5-Δ32 on COVID-19 outcomes has been the focus of much research. This genetic variant may protect against SARS-CoV-2 infection, while others have produced conflicting results. Given the controversial results of previous research on different populations, we aimed to investigate the possible association between the CCR5-Δ32 variant and COVID-19 severity in an Iranian population.
Methods: This case-control study was conducted between 25th of April till 10th of October 2021 at Rasoul Akram Hospital of Iran University of Medical Sciences, Tehran, Iran. We investigated the association between CCR5-Δ32 genotype and COVID-19 severity in 200 unrelated Iranian patients. The patients were divided into 2 groups: 100 patients with severe COVID-19 (case group) and 100 patients with mild COVID-19 (control group). Genotyping of CCR5-Δ32 was performed using the polymerase chain reaction (PCR) technique.
Results: The frequency of CCR5-Δ32 allele was 11 in the case group and 16 in the control group. However, no significant association was found between this genetic variant and the clinical outcomes of COVID-19.
Conclusion: The CCR5-Δ32 variant cannot serve as a reliable predictive factor for identifying individuals prone to developing severe COVID-19 in Iranian population. Additionally, targeting CCR5 would not be a viable treatment approach for COVID-19 in Iranians.
Adaptation Potential and Body Mass Index in Assessing the Vi-tal Activity of the Population in Mountain Regions
Authors: Satarkulova Ainura Manasovna , Aisaeva Shadiya Yusupdjanovna , Keneshova Kanykei Sadyrbekovna , Usenova Asel Abdumomunovna , Bakirova Shirin Syrgakovna
Published: August 2024

Background: We aimed to evaluate the functional state of the population of the midlands and highlands of Alai region (Kyrgyzstan) on the basis of body mass index (BMI) and adaptation potential (AP). The characteristic of people with overweight and underweight are presented. A clean dependence of AP on BMI was revealed.
Methods: In Alai region (Kyrgyzstan), 285 citizens of Gulcha village (1.540 m above sea level) and 312 citizens of Sary-Tash village (3.200 m above sea level) were examined in July-August 2023. Blood pressure (BP) was generally measured at rest in the seated position. The BMI and AP were calculated.
Results: In the midlands and highlands BP correspond to the physiological norm. The AP scores in the midlands region for men was 2.32 points, for women - 2.38 points, but in highlands areas these values were slightly higher: for men – 2.52 points, for women – 2.42 points. The total BMI values for men in the midlands and highlands were 23.39 and 23.24 kg/m2 respectively, for women in the midlands this indicator became higher than normal (26.53 kg/m2), but in the highlands it corresponded to the norm (24.78 kg/m2).
Conclusion: It is necessary to determine the value of AP,BMIandtype of self-regulation of blood circulationwhenassessing the functionalstate of residentslivinginmountain areas.In the highlands overweight,whichisoneof the significantriskfactors for healthdisorders,withtension ofregulatorymechanismscanbecome a trigger for the development of cardiovasculardiseases.
Response to “COMMENT on Trend Analysis of Suicide Mortality and Years of Life Lost From 2016 to 2021 in Southern Iran“
Authors: Azarbakhsh Habibollah , Marzaleh Milad Ahmadi , Shakibkhah Iman
Published: August 2024

The Article Abstract is not available.
SODIUM, MONOETHANOLAMMONIUM AND POLYETHYLENE POLYAMMONIUM CITRATES AQUEOUS SOLUTIONS ELECTROCHEMICAL PROPERTIES
Authors: Khoma R. E. , Bienkovska T. S. , Oshmarina A. A. , Karych A. M. , Kononchenko A. R. , Vodzinskii S. V. , Samburskyi S. E.
Published: August 2024

pH and conductometric study of aqueous (0.1 ÷ 9.0)⋅10-3 mol/l solutions of sodium (Na3Cit), monoethanolammonium (H3Cit⋅3MEA) and polyethylenepolyammonium (kH3Cit⋅3PEPA) citrates was carried out. Features of the electrochemical behavior of monoethanolamine and polyethylenepolamine ammonium citrates aqueous solutions were revealed in comparison with Na3Cit.
As the temperature increases from 293 to 303 K, the pH values and Na3Cit solutions molar electrical conductivity increase. Due to hydrolytic processes, when diluting H3Cit⋅3MEA solutions, a change in pH is observed from slightly acidic to slightly alkaline, in contrast to Na3Cit. An increase in temperature (in the region of 293–308 K) leads to an increase in the medium acidity, in contrast to sodium citrate solutions, which is accompanied by an atypical decrease in molar electrical conductivity at the same H3Cit⋅3MEA content. It has been shown that an increase in temperature in the range of 293-308 K leads to a decrease in H3Cit⋅3MEA aqueous solutions pH, in contrast to Na3Cit and kH3Cit⋅3PEPA solutions, which is accompanied by an atypical decrease in molar electrical conductivity at the same H3Cit⋅3MEA content.
The component composition of Na3Cit, H3Cit⋅3MEA and kH3Cit⋅3PEPA aqueous solutions was calculated. The probability of the existence of negatively charged ion-molecular complexes in H3Cit⋅3MEA and kH3Cit⋅3PEPA aqueous solutions is shown. The concentration and temperature dependence of citrate ions hydrolysis constant was obtained. The concentration and temperature dependence of these complexes was assessed. The atypical negative effect of heating on H3Cit⋅3MEA aqueous solutions molar electrical conductivity is associated with a change in the radius of the ion-molecular complex and its stability. The value of the limiting molar electrical conductivity of sodium, monoethanolammonium and polyethylenepolyammonium citrates aqueous solutions in the range of 293–313 K was estimated. Correlations were revealed between the values of the limiting electrical conductivity and ion-molecular complexes formation constants in H3Cit⋅PEPA aqueous solutions. The values of energy, enthalpy and entropy of activation of molar electrical conductivities of aqueous solutions were calculated. For the solutions studied, compensation effects were noted in the activation parameters of molar electrical conductivity.
INFLUENCE OF ZETA POTENTIAL ON THE PROPERTIES OF READY-MIX-MORTARS WITH WASTE ADDITION
Authors:   Federal University of Santa Catarina, Brazil, Martins Julia , Rocha Janaíde ,   Federal University of Santa Catarina, Brazil, Senff Luciano ,   Federal University of Santa Catarina, Brazil, Hotza Dachamir ,   Federal University of Santa Catarina, Brazil
Published: August 2024

This paper investigates the influence of zeta potential on the properties of mortars stabilized with the addition of silica and fly ash. During the 72 hours of stabilization, the incorporated air content and consistency were evaluated. In the hardened state, mechanical strength, water absorption, and void index were evaluated. The zeta potentials of cement (-3.04 mV) and silica (-10.5 mV) were close to the isoelectric point, while the fly ash presented the highest potential in modulus (-20.3 mV). The effects of the zeta potential were observed in the content of incorporated air, since the high modulus hinders the action of the air-incorporating additive. Thus, the mortar with fly ash incorporated an air content of 5.85%, while other mortars finished the stabilization period with at least 8.25%. In the hardened state, it was possible to realize the indirect influence caused by the zeta potential.
TREATMENTS FOR THE IMPROVEMENT OF RECYCLED BRICK AGGREGATE
Authors:   Islamic University of Technology, Bangladesh, Mohammed T. U. , Ahsan S. ,   Islamic University of Technology, Bangladesh, Khan M. N. H. ,   Islamic University of Technology, Bangladesh, Tanveer M. ,   Islamic University of Technology, Bangladesh, Reza M. R. ,   Islamic University of Technology, Bangladesh
Published: August 2024

A study was conducted to improve the quality of recycled brick aggregate (RBA) by different treatments for use in concrete as coarse aggregates. For this, demolished concrete blocks were collected and crushed into pieces as coarse aggregate (5 mm to 25 mm). For the improvement of RBA, three types of coatings were used, such as cement paste coating, fly ash plus hydrated lime coating, and slag plus hydrated lime coating. Both single layer coating and double layer coating were applied on RBA. The properties of RBA and coated RBA, such as specific gravity, absorption capacity, and abrasion were investigated. Cylindrical concrete specimens (diameter 100 mm and height 200 mm) were made with W/C of 0.45 and 0.55, cement content of 340 kg/m3, and sand to aggregate volume ratio of 0.44. As a control case, normal brick aggregate (NBA) was also investigated. A special mixing method (SM) of concrete was also investigated by considering mixing of RBA with cement paste before adding other ingredients of concrete. In addition to the cylindrical concrete specimens, mortar specimens were also made by screening concrete with a #4 sieve (opening 4.75 mm). After mixing of concrete, slump test was conducted for fresh concrete. Concrete specimens were tested at 7, 14, and 28 days for compressive strength, tensile strength, and Ultrasonic Pulse Velocity (UPV) at 28 days. The abrasion as well absorption capacity of cement paste double coated RBA is reduced. The workability as well as compressive strength of coated RBA is increased compared to the same for uncoated RBA. Mixing of RBA (SM) with cement paste before adding other ingredients of concrete in the mixture also showed better performance.
CRUSHED ANDESITE POWDER AS A CEMENT FILLER MATERIAL – EFFECT ON STRENGTH AND DURABILITY PROPERTIES
Authors:   University of the Witwatersrand, Johannesburg, South Africa, Fadele Oluwadamilola , Otieno Mike ,   University of the Witwatersrand, Johannesburg, South Africa
Published: August 2024

Crushed andesite powder was used as an inert filler material to partly replace plain Portland cement (PC). The powder had a volume-weighted mean particle size of 23.2 µm, and a particle distribution curve characterised with D10, D50 and D90 values of, respectively, 1.8, 13.7 and 55.1. The powder replaces 15% and 30% by mass of PC, and the blend used to make test specimens at two waters to cement+filler (w/c+f) ratios of 0.40 and 0.60. The concretes were assessed for compressive strength (3, 7, 28 and 90 day), hydration kinetics (isothermal calorimetry) and penetrability with respect to chloride, gaseous and moisture ingress. Results show that strength varies with w/(c+f) ratio and PC replacement level. Penetrability of concrete decreases with increasing filler content and increasing w/(c+f) ratio. The results suggest that the crushed andesite powder can potentially be used as a filler material in PC, with careful considerations given to strength and durability requirements.
Transport Tax Benefits: A New Ground for Discussion
Authors:   Associate Professor at the Department of Taxes and Tax Administration, Ryabova Elena V. , Khoruzhy Valery I. ,   Leading Researcher at the Center for Scientific Research and Strategic Consulting
Published: August 2024

The article shows the findings of the analysis of legislation and jurisprudence on determining valid tax liabilities and ‘tax reconstruction’. The article researches the techniques of ‘tax reconstruction’. The conclusion is made that the formation of the tax reconstruction concept is incomplete.
Biomedical Research and the Need for Ethics
Authors: Ginghina Silvia
Published: August 2024

The objective of this paper is to determine to what extent clinical research meets moral criteria. We will briefly present virtue ethics, duty ethics, utilitarian ethics, human rights theory, and end we will end with a few words about moral bioimprovement.
Planet statistika: Raba statističnih testov
Authors: Erčulj Vanja , Šulc Ajda
Published: August 2024

Analiza podatkov je ključen del raziskovalnega načrta. Cilj kvantitativne raziskave je posploševanje ugotovitev iz vzorca na populacijo. To nam omogoča inferenčna (sklepna) statistika. V učbeniku so predstavljeni temeljni koraki statističnega sklepanja. Prikazan je postopek testiranja hipotez in statistični testi s katerimi jih je mogoče testirati. Predstavljeni so nekateri temeljni, široko uporabljani, statistični testi. Na praktičnem primeru je ilustrirana uporaba posameznega statističnega testa tako brez statističnega programa kot z uporabo statističnih programov PSPP in/ali SPSS. Podani so tudi primeri uporabe statističnih testov v raziskovalnih člankih. Učbenik je namenjen vsakomur, ki želi razumeti in uporabiti statistično sklepanje pri svojem raziskovalnem delu.
The Theoretical and Knowledge System of Educational Technology Discipline in China
Authors: Li Long
Published: August 2024

“Educational Technology” is a complete and indivisible whole formed by the fusion two elements of education and technology. This expansive field encompasses research and practical applications aimed at addressing educational and instructional problems through technology. The conventional practice of relying on a singular definition to elucidate educational technology has resulted in confusion and operational challenges. This article introduces the concept of a definition group of educational technology, delves into the discipline’s research objects, research purpose and tasks, research domain and scope, disciplinary foundation, research methods, visual representation of the disciplinary structure, and the logical starting point and positioning, and establishes distinct theory and knowledge systems for educational technology discipline in China, offering a comprehensive interpretation of the discipline’s connotations and extensions.
Class profile and prevalence of overweight and obesity in adolescents – pilot study on the “Health Steps” project
Authors: Białek-Dratwa Agnieszka , Szczepańska Elżbieta , Słoma-Krześlak Małgorzata , Staśkiewicz-Bartecka Wiktoria , Jaruga-Sękowska Sylwia , Nowak Justyna , Nieć-Leśniak Joanna , Sobek Olga , Kiciak Agata , Bielaszka Agnieszka , Kowalski Oskar
Published: August 2024

Wstęp

Celem badania była ocena częstości występowania nadwagi i otyłości u młodzieży w wieku 11–13 lat oraz porównanie masy ciała i zawartości tkanki tłuszczowej uczniów klas o profilu ogólnym i sportowym.

Materiał i metody

W badaniu pilotażowym uczestniczyło 352 uczniów z klas 6 i 7 szkół podstawowych w Bytomiu, biorących udział w projekcie „Schody Zdrowia – edukacja i nauka wyznacznikiem zdrowego i otwartego społeczeństwa”. W badaniu uwzględniono profil klasy. W klasie sportowej realizowano 10 godzin zajęć z wychowania fizycznego tygodniowo, w klasie ogólnej 4 godziny. Skład ciała oceniano za pomocą analizy impedancji bioelektrycznej (bioelectrical impedance analysis – BIA). Do oceny wskaźnika masy ciała (body mass index – BMI) zastosowano polskie siatki centylowe. Do oceny prawidłowej zawartości tkanki tłuszczowej wykorzystano normy z uwzględnieniem wieku i płci adolescentów.

Wyniki

W klasach o profilu ogólnym nadwaga występowała u 77 (25,58%) uczniów, w tym u 36 (22,78%) dziewcząt oraz 41 (28,67%) chłopców. W klasach o profilu sportowym dotyczyła 8 (15,69%) uczniów, w tym 2 (10,53%) dziewcząt i 6 (18,75%) chłopców. Otyłość w klasach sportowych nie występowała, a w klasach o profilu ogólnym dotyczyła 13 (4,32%) uczniów, w tym 6 (3,80%) dziewcząt oraz 7 (4,90%) chłopców. Biorąc pod uwagę procentową zawartość tkanki tłuszczowej, nadwaga występowała u 56 (15,91%) uczniów.

Wnioski

Nadmierna masa ciała dotyczy ponad 25% adolescentów. Nadwaga i otyłość rzadziej występowała u uczniów klas o profilu sportowym. Ponad 30% dzieci ma za dużo tkanki tłuszczowej. Według tego kryterium u dziewcząt w klasach sportowych rzadziej występowała nadwaga i otyłość niż u dziewcząt z klas o profilu ogólnym. Różnice w zawartości tkanki tłuszczowej u chłopców z klasy sportowej i ogólnej były nieistotne statystycznie.
Factors Related to Employment of Transition-Age Youth With Intellectual Disability
Authors: Battle Terrilyn , Webb Kelsey , Muhammad Atashia , Sierra Diana , Moore Cayla , Cross Kenyotta Eugene , Wang NingNing , Quamar Abbas H. , Lewis Allen N. , Manyibe Edward O.
Published: August 2024

This study examined the relationship between demographic factors and disability type and employment in transition-age individuals with intellectual disabilities who received state vocational rehabilitation services. The study conducted a cross-sectional secondary data analysis of the Rehabilitation Services Administration 911 dataset with an inclusion sample of 39,060 youth. Results indicated that race, ethnicity, gender, education level, and disability type correlated with employment. Specifically, individuals of transition age who were Black, Hispanic, female, had an intellectual disability, and had not completed high school were less likely to be employed than their counterparts who were White, non-Hispanic, male, had a disability other than intellectual disability, and had completed at least high school. These findings were consistent with the previous research. The authors posited that such research going forward would benefit from more studies utilizing primary data collection, mixed-methods designs, more discernment among modifiable and nonmodifiable demographic factors, and using an intersectionality lens to understand the cumulative effect of factors associated with disadvantage or marginalization (i.e., race and ethnicity) on employment in this population.
Financial Risk Tolerance as a Mediator Between Financial Literacy and Stock Market Participation: Evidence From Single Men and Women
Authors: Li Meng , Jiang Hongmei
Published: August 2024

Anchored upon the theory of planned behavior, the study examines a mediator, financial risk tolerance, in the relationship between financial literacy and stock market participation among single men and women. Using data from the 2019 Survey of Consumer Finances, the study uncovers an indirect effect of financial literacy on stock market participation through the mediating role of financial risk tolerance. This effect is observed in both genders, with a more pronounced mediation effect for men than for women. The study suggests that this gender disparity in the mediating mechanism is driven by the stronger correlation between financial risk tolerance and stock market participation among men, as the study finds that men exhibit a higher propensity to invest in the stock market when their financial risk tolerance increases compared with women. Consequently, the study asserts that addressing the gender gap in stock market participation may hinge on empowering women to transform their financial risk tolerance into concrete investment actions.
Development and Psychometric Analysis of the Physician and Nurse Brain Drain Attitude Scale
Authors: Akkoç İrfan , Akkoç Metehan , Çakır Orhan
Published: August 2024

Background and Purpose:The Physician and Nurse Brain Drain Attitude Scale measures healthcare professionals’ attitudes toward brain drain, which affects healthcare systems in developing countries.Methods:The scale was developed using the methodologies proposed by Timothy R. Hinkin and Robert F. DeVellis, including qualitative research, expert evaluations, and exploratory and confirmatory factor analyses, with a sample of physicians and nurses from İzmir, Türkiye.Results:The scale comprises two factors: push and pull factors, demonstrating high reliability and confirmed validity through statistical tests indicating good fit and discriminant validity. Negative attitudes toward brain drain were linked to lower job satisfaction.Conclusions:This validated scale provides a crucial tool for understanding healthcare professionals’ perspectives on migration and its contributing factors.