bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation and Emulsifying Properties of Carbon-Based Pickering Emulsifier
Authors: Lv Huihui , Wang Zebo , An Jialong , Li Zhanfeng , Shi Lei , Shan Yuanyuan
Published: April 2023

Water is increasingly being used as a solvent in place of organic solvent in order to meet the demand for green chemical synthesis. Nevertheless, many of the reaction substrates are organic matter, which have low water solubility, resulting in a low reaction interface and limiting the development of organic-water biphasic systems. A surfactant is typically added to the two-phase system to form an emulsion to increase the contact area between the organic phase and the water. Compared to ordinary emulsion stabilized with the surfactant, Pickering emulsion offers better adhesion resistance, biocompatibility, and environmental friendliness. It possesses unrivaled benefits as an emulsifier and catalyst in a two-phase interfacial catalysis system (PIC). In this study, the amine group (NNDB) was employed to alter the surface of graphene oxide (GO). A stable Pickering emulsion was created by adsorbing GO-NNDB on the toluene–water interface. It was determined that the emulsion system had good stability by analyzing digital photographs and microscope images of droplets at various temperatures, and fluorescence microscopy images of emulsion droplets created by both newly added and recovered emulsifiers. This work provided the groundwork for future applications of Pickering emulsion in interfacial catalysis.
Quality Monitoring of Biodiesel and Diesel/Biodiesel Blends: A Comparison between Benchtop FT-NIR versus a Portable Miniaturized NIR Spectroscopic Analysis
Authors: Monteiro Luísa L. , Zoio Paulo , Carvalho Bernardo B. , Fonseca Luís P. , Calado Cecília R. C.
Published: April 2023

A methodology such as near-infrared (NIR) spectroscopy, which enables in situ and in real-time analysis, is crucial to perform quality control of biodiesel, since it is blended into diesel fuel and the presence of contaminants can hinder its performance. This work aimed to compare the performance of a benchtop Fourier Transform (FT) NIR spectrometer with a prototype of a portable, miniaturized near-infrared spectrometer (miniNIR) to detect and quantify contaminants in biodiesel and biodiesel in diesel. In general, good models based on principal component analysis-linear discriminant analysis (PCA-LDA) of FT-NIR spectra were obtained, predicting with high accuracies biodiesel contaminants and biodiesel in diesel (between 75% to 95%), as well as good partial least square (PLS) regression models to predict contaminants concentration in biodiesel and biodiesel concentration in diesel/biodiesel blends, with high coefficients of determination (between 0.83 and 0.99) and low prediction errors. The miniNIR prototype’s PCA-LDA models enabled the prediction of target contaminants with good accuracies (between 66% and 86%), and a PLS model enabled the prediction of biodiesel concentration in diesel with a reasonable coefficient of determination (0.68), pointing to the device’s potential for preliminary analysis of biodiesel which, associated with its potential low cost and portability, could increase biodiesel quality control.
Study on Zinc-Modified Adsorbent for Adsorption of Trace CO2 in Electronic Special Gas BF3
Authors: Huang Zhaochen , Huang Guoqiang
Published: April 2023

Usually, the ion implantation gases used in semiconductor production are required to be extremely high in purity. Due to the presence of trace CO2 in electronic special gas BF3, the quality of the material is significantly affected, which makes it crucial to impose control on CO2 content. Unlike a series of blank adsorbents reported in other studies, the zinc-loaded adsorbents prepared in this study are intended for the adsorption of CO2 from CO2/BF3. Firstly, the materials were characterized by XRD, BET, SEM-EDS and TG-DSC analysis, etc., and the breakthrough curves of the adsorbents as obtained under different preparation conditions were investigated at 20 °C and 200 kPa. The results show that the adsorption performance reached the optimal level when the activation temperature was 450 °C and a 13X molecular sieve was impregnated by 0.15 mol/L Zn(NO3)2. Moreover, compared with the Zn-13X, the breakthrough time was reduced to 69% and 44% in two adsorption cycles, respectively. Finally, FTIR was used to reveal the adsorption mechanism of the carbonates produced by CO2 adsorption. It was found that the adsorption performance was affected by the irreversible reduction in the number of active sites due to the continuous formation of polydentate carbonate during adsorption and regeneration.
A Survey on Open-Source Simulation Platforms for Multi-Copter UAV Swarms
Authors: Chen Ziming , Yan Jinjin , Ma Bing , Shi Kegong , Yu Qiang , Yuan Weijie
Published: April 2023

Simulation platforms are critical and indispensable tools for application developments of unmanned aerial vehicles (UAVs) because the UAVs are generally costly, have certain requirements for the test environment, and need professional licensed operators. Thus, developers prefer (or have) to test their applications on simulation platforms before implementing them on real machines. In the past decades, a considerable number of simulation platforms for robots have been developed, which brings convenience to developers, but also makes them hard to choose a proper one as they are not always familiar with all the features of platforms. To alleviate this dilemma, this paper provides a survey of open-source simulation platforms and employs the simulation of a multi-copter UAV swarm as an example. The survey covers seven widely used simulators, including Webots, Gazebo, CoppeliaSim, ARGoS, MRDS, MORSE, and USARSim. The paper outlines the requirements for multi-copter UAV swarms and shows how to select an appropriate platform. Additionally, the paper presents a case study of a UAV swarm based on Webots. This research will be beneficial to researchers, developers, educators, and engineers who seek suitable simulation platforms for application development, (not only multi-copter UAV swarms but also other types of robots), which further helps them to save expenses for testing, and speed up development progress.
Towards an Evolved Immersive Experience: Exploring 5G- and Beyond-Enabled Ultra-Low-Latency Communications for Augmented and Virtual Reality
Authors: Hazarika Ananya , Rahmati Mehdi
Published: April 2023

Augmented reality and virtual reality technologies are witnessing an evolutionary change in the 5G and Beyond (5GB) network due to their promising ability to enable an immersive and interactive environment by coupling the virtual world with the real one. However, the requirement of low-latency connectivity, which is defined as the end-to-end delay between the action and the reaction, is very crucial to leverage these technologies for a high-quality immersive experience. This paper provides a comprehensive survey and detailed insight into various advantageous approaches from the hardware and software perspectives, as well as the integration of 5G technology, towards 5GB, in enabling a low-latency environment for AR and VR applications. The contribution of 5GB systems as an outcome of several cutting-edge technologies, such as massive multiple-input, multiple-output (mMIMO) and millimeter wave (mmWave), along with the utilization of artificial intelligence (AI) and machine learning (ML) techniques towards an ultra-low-latency communication system, is also discussed in this paper. The potential of using a visible-light communications (VLC)-guided beam through a learning algorithm for a futuristic, evolved immersive experience of augmented and virtual reality with the ultra-low-latency transmission of multi-sensory tracking information with an optimal scheduling policy is discussed in this paper.
A One-Dimensional Blocking Index Becomes Two-Dimensional Using GIS Technology
Authors: Ethridge Eli D. , Efe Bahtiyar , Lupo Anthony R.
Published: April 2023

Many previous studies of the occurrence of blocking anticyclones, their characteristics, and dynamics have defined the onset longitude using the one-dimensional zonal index type criterion proposed by Lejenas and Okland. In addition to examining the blocking event itself, the onset longitude was determined to start at the nearest five degrees longitude using the National Centers for Environmental Prediction/National Center for Atmospheric Research Reanalyses that were used to identify the events. In this study, each blocking event in the University of Missouri Blocking Archive was re-examined to identify an onset latitude, and this information was added to the archive. The events were then plotted and displayed on a map of the Northern or Southern Hemisphere using Geographic Information System (GIS) software housed at the University of Missouri as different colored and sized dots according to block intensity and duration, respectively. This allowed for a comparison of blocking events in the archive above to studies that used a two-dimensional index. Then the common onset regions were divided by phase of the El Nino and Southern Oscillation (ENSO), and the typical onset of intense and persistent blocking events could be examined. The results found a favorable comparison between the onset regions identified here and those found in previous studies that used a two-dimensional blocking index. Additionally, there was variability identified in the onset regions of blocking in both hemispheres by ENSO phase, including the location of more intense and persistent events.
A Review of Unmanned Aerial Vehicle Applications in Construction Management: 2016–2021
Authors: Molina Andres Acero , Huang Yilei , Jiang Yuhan
Published: April 2023

With the rapid advancement of Unmanned Aerial Vehicle (UAV) technologies in recent years, their uses have been increasingly adopted in the architecture, engineering, and construction industries. To satisfy the needs of various types of construction projects, a considerable amount of research work has been performed to implement and refine the operations, safety, and accuracy of UAVs. This paper presents the findings of a comprehensive literature review that focuses on UAV research in construction management during the timeframe of 2016 to 2021. A total of 95 papers were identified and collected from a list of 21 relevant journals and conference proceedings, and were then categorized by their research topic, sensor types, and targeted structures. The results of 47 exemplary studies were reported in two categories, namely UAV uses and construction uses. The research topics identified for UAV uses include algorithm, applications, operations, framework, and training, while research topics identified for construction use include inspection, surveying, safety, and monitoring. The connection between the research topics, sensor types, targeted structures, and other advanced technologies were also discussed. This paper summarizes the current results of UAV research in construction management, reviews the methodology, benefits, and limitations of the reviewed literature, and provides valuable knowledge for the future trend of UAV applications in the civil, infrastructure, and construction industries.
The Effect of Economic Policy Uncertainty on Foreign Direct Investment in the Era of Global Value Chain: Evidence from the Asian Countries
Authors: Zhang Bohan , Ma Jianfu , Khan Muhammad Asghar , Repnikova Valentina , Shidlovskaya Kseniia , Barykin Sergey , Ahmad Muhammad Salman
Published: April 2023

The global value chain has promoted foreign direct investments in emerging markets. Not only resources but also public policies can affect the inflows or outflows of foreign direct investments (FDI). This study investigates the effect of economic policy uncertainty on net foreign direct investment inflows in 48 Asian countries. We use the panel dataset from different sources from 1995 to 2020. Our core dependent variable is net foreign direct investment inflows, and the explanatory variable is economic policy uncertainty. The study’s control variables include trade, GDP per capita, GDP growth, population, financial development, inflation, and employment. We use the generalized system method of moment (SYS_GMM). Furthermore, the robustness of our empirical results is checked by using the different proxy variables of policy uncertainty. Our results confirm the negative effect of policy uncertainty on foreign direct investment inflows in 48 Asian countries. Our results show that foreign investment inflows are more sensitive than domestic investment. The influence of domestic and global uncertainty on inward FDI is greater than domestic investment. Furthermore, the interaction effect of financial development (FD) shows that FD does not affect mitigation of the negative impact of global economic policy uncertainty on foreign investment inflow. In contrast, FD mitigates the adverse effects of domestic policy uncertainty on foreign and domestic investment. The findings imply that policies need to be attractive, effective, and transparent to woo FDI to the emerging markets.
Lifecycle Value Sustainment and Planning Mission Upgrades for Complex Systems: The Case of Warships
Authors: Dwyer Dylan , Efatmaneshnik Mahmoud
Published: April 2023

Changeability analysis methods primarily assist with formulating a response to uncertain and new requirements from various system stakeholders and include asset management issues such as modelling lifecycle path dependency. Epoch-era networks proved to be an effective tool for managing the evolving requirements of a capability system, ensuring sustained value through life. Over the life of a system, stakeholders are faced with countless options to change their capability systems to sustain value, which is path dependent and can greatly impact the scope of decisions available later in life. This paper introduces and demonstrates the application of a revised epoch-era network approach to explore many potential lifecycle paths, along with utility vs. expense strategies, demonstrated through an example of a military frigate subject to evolving requirements. Results indicated the future limitations to sustaining value if the largest and most capable technology upgrades are selected too early in life. The two best lifecycle paths from different strategies were compared to understand the utility/expense trade-offs for the most optimal frigate upgrade trajectory.
Understanding the COVID-19 Vaccine Policy Terrain in Ontario Canada: A Policy Analysis of the Actors, Content, Processes, and Context
Authors: AlShurman Bara’ Abdallah , Tetui Moses , Nanyonjo Agnes , Butt Zahid Ahmad , Waite Nancy M. , Vernon-Wilson Elizabeth , Wong Ginny , Grindrod Kelly
Published: April 2023

(1) Background: Canada had a unique approach to COVID-19 vaccine policy making. The objective of this study was to understand the evolution of COVID-19 vaccination policies in Ontario, Canada, using the policy triangle framework. (2) Methods: We searched government websites and social media to identify COVID-19 vaccination policies in Ontario, Canada, which were posted between 1 October 2020, and 1 December 2021. We used the policy triangle framework to explore the policy actors, content, processes, and context. (3) Results: We reviewed 117 Canadian COVID-19 vaccine policy documents. Our review found that federal actors provided guidance, provincial actors made actionable policy, and community actors adapted policy to local contexts. The policy processes aimed to approve and distribute vaccines while continuously updating policies. The policy content focused on group prioritization and vaccine scarcity issues such as the delayed second dose and the mixed vaccine schedules. Finally, the policies were made in the context of changing vaccine science, global and national vaccine scarcity, and a growing awareness of the inequitable impacts of pandemics on specific communities. (4) Conclusions: We found that the triad of vaccine scarcity, evolving efficacy and safety data, and social inequities all contributed to the creation of vaccine policies that were difficult to efficiently communicate to the public. A lesson learned is that the need for dynamic policies must be balanced with the complexity of effective communication and on-the-ground delivery of care.
Concerns about COVID-19 Vaccine Hesitancy among Law Enforcement Officers: Prevalence and Risk Factor Data from a Nationally Representative Sample in the United States
Authors: Taylor Bruce G. , Mumford Elizabeth A. , Kaplan Alejandra M. , Liu Weiwei
Published: April 2023

Scant research exists on COVID-19 vaccine hesitancy among law enforcement officers, hindering health messaging development for officers and, by extension, the communities they serve. This paper’s goal was to address this gap by providing the necessary data to better under hesitancy to guide training and policy interventions for officers. The objective was to conduct the first nationally representative survey of officers on COVID-19 vaccine hesitancy and its correlates. We collected data from February 2021 to March 2022 on officer COVID-19 vaccine hesitancy and examined their responses in terms of sociodemographic factors, health status, and job characteristics. We found that 40% of officers were COVID-19 vaccine hesitant. We found that officers with higher education, older officers, officers with more law enforcement experience, officers who received recent health checkups, and commanders (compared to line officers) were less likely to be COVID-19 vaccine hesitant. Critically, officers working in law enforcement agencies that provided masks for COVID-19 protection were less likely to be COVID-19 vaccine hesitant (compared to agencies not providing masks). Ongoing research is needed to understand how evolving attitudes and barriers toward vaccination change over time for officers and to test messaging to better align officers with health guidelines.
Immunogenicity Differences of the ChAdOx1 nCoV-19 Vaccine According to Pre-Existing Adenovirus Immunity
Authors: Kim Jinnam , Kim Changhyup , Lee Jung Ah , Lee Se Ju , Lee Ki Hyun , Kim Jung Ho , Ahn Jin Young , Jeong Su Jin , Ku Nam Su , Yeom Joon-Sup , Song Young Goo , Choi Jun Yong
Published: April 2023

This study investigated the immunogenicity of, and reactogenicity to, the ChAdOx1 nCoV-19 vaccine according to pre-existing adenovirus immunity. Individuals scheduled for COVID-19 vaccination were prospectively enrolled in a tertiary hospital with 2400 beds from March 2020 onwards. Pre-existing adenovirus immunity data was obtained before ChAdOx1 nCoV-19 vaccination. A total of 68 adult patients administered two doses of the ChAdOx1 nCoV-19 vaccine were enrolled. Pre-existing adenovirus immunity was identified in 49 patients (72.1%), but not in the remaining 19 patients (27.9%). The geometric mean titer of S-specific IgG antibodies was statistically higher in individuals without pre-existing adenovirus immunity at several time points: before the second ChAdOx1 nCoV-19 dose (56.4 (36.6–125.0) vs. 51.0 (17.9–122.3), p = 0.024), 2–3 weeks after the second ChAdOx1 nCoV-19 dose (629.5 (451.5–926.5) vs. 555.0 (287.3–926.0), p = 0.049), and 3 months after the second ChAdOx1 nCoV-19 dose (274.5 (160.5–655.3) vs. 176.0 (94.3–255.3), p = 0.033). In the absence of pre-existing adenovirus immunity, systemic events were observed with higher frequency, especially chills (73.7% vs. 31.9%, p = 0.002). In conclusion, individuals without pre-existing adenovirus immunity showed a higher immune response to ChAdOx1 nCoV-19 vaccination and a higher frequency of reactogenicity to ChAdOx1 nCoV-19 vaccination was observed.
Development of a Nomogram to Estimate the 60-Day Probability of Death or Culling Due to Severe Clinical Mastitis in Dairy Cows at First Veterinary Clinical Evaluation
Authors: Le Page Thomas , Buczinski Sébastien , Dubuc Jocelyn , Labonté Josiane , Roy Jean-Philippe
Published: April 2023

Severe clinical mastitis is a frequent disease of dairy cattle. An effective mean of predicting survival despite treatment would be helpful for making euthanasia decisions in poor prognosis cases. The objective was to develop a nomogram for prediction of death or culling in the 60 days following a severe mastitis episode in dairy cows at first veterinary visit in farm settings. A total of 224 dairy cows presenting severe clinical mastitis and examined for the first time by a veterinarian were included in a prospective study. Clinical and laboratory (complete blood cell count, L-lactate, cardiac troponin I, milk culture) variables were recorded. Animals were followed for 60 days. A nomogram was built with an adaptive elastic-net Cox proportional hazards model. Performances and relevance were evaluated by area under the receiver operating characteristic curve (AUC), Harrell’s concordance index (C-index), calibration curve, decision curve analysis (DCA) and misclassification cost term (MCT). The nomogram included: lactation number, recumbency, depression intensity, capillary refilling time, ruminal motility rate, dehydration level, lactates concentration, hematocrit, band neutrophils count, monocyte count, and milk bacteriology. The AUC and C-index showed a good calibration and ability to discriminate. The DCA suggested that the nomogram was clinically relevant. Euthanizing animals having less than 25% probability of survival is economically optimal. It could be used for early euthanasia decisions in animals that would not survive despite treatment. To facilitate the use of this nomogram by veterinarians, a web-based app was developed.
Effect of Whole-Body Vibration Exposure in Vehicles on Static Standing Balance after Riding
Authors: Tatsuno Junya , Maeda Setsuo
Published: April 2023

This study aims to investigate the effects of whole-body vibration (WBV) exposure on the disturbance of standing balance function assuming that the cause of slip, trip and fall accidents in the land transportation industry is related to WBV exposure when traveling in vehicles. In the experiment, ten participants underwent 60 min of virtual driving in a driving simulator (DS) for WBV exposure. In addition, standing balance measurements were conducted before exposure, immediately after exposure, 2 min after exposure and 4 min after exposure. Four conditions were considered by combining two magnitudes of WBV exposure and the driver and passenger conditions. This study focused on two indexes of standing balance, namely, total length and enveloped area and the rate of change relative to the value before the vibration exposure was calculated. The rate of change remained almost constant at 1.0 in the control condition without vibration exposure, whereas that under vibration exposure conditions varied. Interestingly, the rate of change at 2 min after exposure remained high in the driver condition, but it decreased to almost 1.0 in the passenger condition. Since no difference appeared in the vibration acceleration measured at the seating surface between the driver and passenger conditions, it was believed that the difference between the driving and passenger conditions was related to fatigue caused by the accelerator-pedal operation. As a result of considering the percentage of the standing balance that returned to 1.0 after 4 min in most conditions, this study proposed that a rest period of several minutes be allowed from the experiment in which the participants were exposed to vibration at 0.5m/s2 rms for 60 min at the DS. Further basic experiments will be conducted to introduce another WBV exposure assessment, including loss of standing balance as a health indicator, to ISO 2631-1.
The effect of calcium toothpastes on the level of oral hygiene and enamel resistance in 12-18-year-old children
Authors: Limina A. P. , Satygo E. A. , Reutskaya K. V. , Hodgibaev J. Sh.
Published: April 2023

Relevance. Oral hygiene improvement and remineralization stimulation are essential to prevent dental caries in children aged 12-18 y.o.

Purpose: to compare the oral hygiene and enamel resistance levels in children using toothpastes based on calcium glycerophosphate and calcium lactate.

Materials and methods. The study involved 42 children aged from 12 to 18 years. Twenty patients used Novy Zhemchug with Calcium toothpaste as a home oral care product for two months. Twenty-two patients used Toothpaste R.O.C.S.® Active Calcium for two months. The study determined the plaque control record (O’Leary, 1967) and the SHS (Simple Hygiene Score) by quantitative light-induced fluorescence (Qraypen C™) and enamel resistance test (Okushko V.R., 1984). All results were statistically processed.

Results. The study found that the O’Leary plaque control record, SHS and the enamel resistance test results were not statistically significant in both study groups. After two months of observation, the O’Leary plaque control record significantly improved in children of both groups. However, the group using Toothpaste R.O.C.S.® Active Calcium demonstrated significantly better values (59.74 ± 4.12%). The SHS was significantly better after two months of use in the children group using Toothpaste R.O.C.S.® Active Calcium compared to the children group using Novy Zhemchug with Calcium toothpaste. The enamel resistance test score significantly improved in children of both groups over two months. The patients using Toothpaste R.O.C.S.® Active Calcium for two months demonstrated the best enamel resistance score.

Conclusion. Toothpaste containing calcium compounds is quite effective for oral hygiene and enamel resistance improvement in children aged 12-18 y.o. The best scores were in groups of children who used toothpaste containing calcium glycerophosphate compared to the children group who used too thpastes containing calcium lactate.
Une étude locale de la biodiversité : inventaire des coléoptères du domaine de la fondation Pierre Vérots à Saint-Jean-de-Thurigneux (Ain, France). 3. Les coléoptères saproxyliques
Authors: Prudhomme Jean-Claude
Published: April 2023

Une liste de 340 coléoptères saproxyliques rencontrés lors de l’inventaire des coléoptères du domaine de la Fondation Pierre Vérots à Saint-Jean-de-Thurigneux (Ain) est établie, commentée et comparée aux données anciennes et récentes disponibles pour la même région.
Nesîmî Divanı’nın Söz Varlığı
Authors: AYDIN Sami
Published: April 2023

XIV. yüzyılın zirve şahsiyetlerinden biri olan Seyyid İmâdüddîn-i Nesîmî’nin Türkçe Divanı’nın söz varlığını ortaya koymak bu çalışmanın temel hedeflerindendir. Söz varlığı, salt sahip olunan sözcük dağarcığı veya bir dildeki sözcüklerin tümü şeklinde düşünülmemelidir. Bir dilin söz varlığı aynı zamanda o dili konuşan toplumun aynası, o toplumun maddî ve manevî kültürünün yansıtıcısı görevini de üstlenir. Bu yönüyle düşünüldüğünde birbirinden değerli şair ve yazarlarımızın eserlerinde yer alan söz varlıklarının araştırılıp literatüre kazandırılması önem arz eden konular arasında yerini alır.
Bu çalışmanın giriş kısmında öncelikle dil tanıtılmış, daha sonra söz varlığı ve kapsamı hakkında kısa bir bilgi verilmiştir. En sonunda üzerine çalışılan eser kısaca tanıtılarak barındırdığı nazım şekilleri ve adetleri hakkında bilgi verilmiştir.
Çalışmanın birinci başlığı Divan’ın söz varlığına ayrılmış; tespit edilen kalıp ifadeler, deyimler, ayetler, hadisler, arkaik kelimelere vs. kısaca değinildikten sonra azınlık ve çoğunlukta olan kelimeler alfabetik sıra gözetilerek sunulmuştur.
Çalışmanın ikinci başlığı kelime gruplarına ayrılmıştır. Bu bölümde öncelikle kelime grubu hakkında kısa bir bilgi verilmiş, daha sonra eserin söz varlığı alt başlıklar halinde incelenmiştir. Bu kısımda sırasıyla bağlama birlikleri, edat birlikleri, tekrar birlikleri, sayı birlikleri, unvan birlikleri ve birleşik isimler, ünlem birlikleri, kalıp ifadeler, arkaik sözcükler, atasözleri, deyimler, ayetler, hadisler ve dua ifadeleri incelenmiştir. Tamlamalar, çok fazla olmaları ve çalışmada hacimce yer kaplayacaklarından dolayı incelemeye tâbi tutulmamıştır.
Türk coğrafyasında milli ve kültürel hatıraları içinde barındıran yüzlerce değerli eser vardır. Bu eserlerin incelenip sahip oldukları zengin söz varlığının ortaya konmasına ve ilim camiasına kazandırılmasına ihtiyaç vardır. Bu çalışmada da Nesîmî’nin söz varlığı elde edilen veriler ışığında ortaya konmuş; Türk dilinin söz varlığına katkısı olacağı düşünülen bulgular ilim camiasına sunulmuştur.
STRESSORS & MENTAL HEALTH AMONG COLLEGE STUDENTS ON HBCU & PBI CAMPUSES
Authors:   Dillard University, Brumfield Lashanda , Sandifer Mickel ,   Emory University
Published: April 2023

Introduction: As of 2019, the Annual Report of the Center for Collegiate Mental Health [2] reported that anxiety continues as the most common problem among students who completed the Counseling Center Assessment of Psychological Symptoms, with 67.7% of 82,685 respondents participating in the report. Clinicians also reported that anxiety continues to be the most common diagnosis among students seeking services at on-campus counseling centers. Mental illness can affect students’ motivation, concentration, social interactions, and college success [1]. The effects of the lockdown and stay-at-home orders have brought a negative impact on higher education. It has brought into focus the mental health of various affected populations and the many disparities facing them, as well as the need for more programming aimed to serve students at historically black universities. A recent review of virus outbreaks and pandemics documented stressors such as infection fears, frustration, boredom, inadequate supplies, inadequate information, financial loss, and stigma [5]. Much of the current literature on the psychological impacts of COVID-19 has emerged from the earliest hot spots in China [6,10,11]. Although several studies have assessed mental health issues during epidemics, most have focused on health workers, patients, children, and the general population [6,7]. Review results support a baseline need for future HBCU studies to support anticipated funding by way of applied grants, to better serve the disparities faced by the students on an HBUC & a PBI campus, as a result of Mental Illness.
THE EFFECTS OF PRONE POSITIONING IN MECHANICALLY VENTILATED PATIENTS WITH COVID-19 : A SYSTEMATIC REVIEW
Authors:   Department of Physical Therapy, School of Health Related Professions, University of Mississippi Medical Center, Jackson, MS, USA, Golding Claire , Rasberry Baryn , Griffith Ben , Robertson John , Lauderdale Melanie
Published: April 2023

Background: The COVID-19 pandemic presented challenging times for everyone and impacted healthcare tremendously. Prone positioning (PP) was implemented to address inadequate oxygenation in mechanically ventilated patients with COVID19. Prone positioning, which involves placing a patient face down, improves gas exchange and oxygen perfusion. For this reason, PP was introduced as a treatment option for patients with hypoxemia secondary to COVID-19. Objective: The purpose of this systematic review was to analyze the effects of PP on mechanically ventilated patients with COVID-19. Methods: PubMed and EMBASE databases were searched using terms relating to PP, COVID-19, and mechanical ventilation. Researchers screened titles, abstracts, and full texts, removing any duplicates. The JBI Critical appraisal Tool was used to assess selected articles. Results: Six studies met inclusion criteria for the study, with a total of 421 participants. Primary outcomes assessed included oxygenation parameters. All included studies met the JBI Critical Appraisal criteria to be deemed acceptable for the systematic review. Conclusion: Physical therapists play an important role in mobility of patients in the ICU setting and may be involved in determining treatments to improve oxygenation in patients with COVID-19. Data consistently indicated that prone positioning may be an appropriate intervention to improve oxygenation in patients with respiratory failure due to COVID-19. Several articles indicated increased time in prone may lead to increase in improvements in oxygenation, but continued research is needed to determine the optimal time in prone. Due to the novelty of COVID-19, limited research participants, and low-level research study design, more studies on this topic are recommended.
PREDICTION OF COMMUNITY TRANSMISSION LEVEL OF COVID-19 USING MACHINE LEARNING ALGORITHMS BASED ON THE CDC SOCIAL VULNERABILITY INDEX
Authors:   Mississippi State University, Saei Saviz , Wang Yibin , Marufuzzaman Mohammad , Morshedlou Nazanin , Wang Haifeng
Published: April 2023

Response to hazardous events is crucial in every community, whether natural or anthropogenic disasters. Social Vulnerability Index (SVI) helps people who need support. Social vulnerability refers to the number of adverse effects of external stress, including natural causes or disease outbreaks like the Coronavirus Disease 19 (COVID-19) pandemic on human health. The SVI dataset possesses California state of the US, subdivisions of counties of 15 features into four groups as related themes (i.e., socioeconomic status; household composition and disability; minority status and language; and housing type and transportation). In addition to the SVI dataset, the recent COVID-19 data tracker for each county posted by the Centers for Disease Control and Prevention (CDC) shows the new cases per 100,000 persons in the last seven days. The transmission values are low, moderate, substantial, and high. The impact of SVI on COVID-19 attracts the attention of researchers to find the relationships between SVI and COVID-19 incidence. This paper aims to incorporate SVI data and the incidence in the urban and rural areas of the United States using eight machine learning algorithms for COVID-19 transmission level classification. The experimental results show the proper prediction based on the community transmission level of COVID-19 by considering the features of SVI. Among all used machine learning methods, Random Forest achieved the best performance based on the percentage of various performance metrics accuracy and F1-score.
Концепция разработки технологий интегрального развития и укрепления здоровья
Authors: Kozina Zh. L. , Kozin V. Yu
Published: April 2023

Представлена теоретическая концепция по разработке различных методик и технологий по интегральному гармоничному воздействию на организм для укрепления здоровья, для комплексного развития двигательных и интеллектуальных способностей человека на различных жизненных этапах. Концепция предполагает целостный подход к созданию методик комплексного психологического и физического развития человека. В основе концепции лежит идея, что человек является самоорганизующейся многофункциональной системой.  На любое воздействие система отвечает целостно, в большей или в меньшей мере включаются все ее компоненты. Для решения любой жизненной задачи включаются как физический, так и интеллектуальный, психологический, духовный компоненты. поэтому разработка технологий гармоничного развития и укрепления здоровья подразумевают комплексный подход к активизации не только физического, но и сознательного компонентов. При этом ведущая роль принадлежит сознательному компоненту. В качестве примера интегральной технологии представлен авторский комплекс упражнений, выполняемых под стихи, для детей от 1 года до 7 лет, получивший название «Маленькие волшебники». Данная технология получила широкое распространение в различных детских учреждениях.  Все авторские технологии, р, прошли экспериментальную проверку и пазработанные согласно представленной концепции, показали свою эффективность.
Аналіз структури інтегральної підготовленості кваліфікованих гандболістів із застосуванням методів багатовимірного аналізу
Authors: Kozina Zh.L. , Bazilyuk T.A. , Boiko A.G.
Published: April 2023

Мета роботи: визначити факторну структуру підготовленості гандболістів вищих розрядів. Матеріал і методи: В дослідженні взяли участь 25 кваліфікованих гандболістів, вік 23-24 роки. Методи дослідження: аналіз літературних джерел, методи педагогічного тестування, методи фізіологічного тестування (вимір швидкості зорово-моторної реакції, аналіз серцевого ритму, біохімічний аналіз крові на концентрацію гемоглобіна, кортизола та інсуліна, тест PWC170, методи математичної статистики (кореляційний, факторний аналізи) з застосуванням комп'ютерних програм „EXEL” і „SPSS-11”. Результати: Виявлено достовірні середні та високі (0,5-0,9) коефіцієнти взаємозв’язку між точністю кидків та швидкістю пробігання 6-ти - метрового відрізку, стрибком з місця, метанням набивного м’яча з розбігу, швидкістю реакції, концентрацією β-ендорфінів, гемоглобіну, абсолютними та відносними значеннями PWC170, активністю симпатичного відділу вегетативної нервової системи за показниками серцевого ритму. Показано, що показники розширеного комплексного тестування гандболістів розбиваються на шість факторів. В перший і найголовніший фактор увійшли показники швидкісно-силової підготовленості та точності кидків в поєднанні з антропометрічними даними. Висновки. При навчанні основним технічним прийомам в гандболі слід робити акцент не тільки на просторово-часових параметрах технічних рухів, але й на швидкісно-силовому аспекті їх виконання. Це потребує розробки  відповідних методик навчання.
Совершенствование спортивной подготовки квалифицированных спортсменок
Authors: Kutek T.B. , Akhmetov R.F.
Published: April 2023

Значительные резервы совершенствования спортивной подготовки квалифицированных спортсменок зависят от оперативной реакции на появление новых технологий, их апробации и внедрения в практику. В статье представлены новые возможности использования тренажеров в процессе технической подготовки квалифицированных прыгуний в высоту. Показана принципиальная возможность практического использования тренажера «облегчающего лидирования» для совершенствования двигательных действий спортсменок. Полученные результаты показывают очевидные перспективы дальнейшего расширения сферы использования технических средств и тренажеров в современной системе подготовки квалифицированных спортсменок.
Методика формування техніки кидків з середньої відстані у баскетболі
Authors: Kozina Zh.L. , Grin' L.V. , Vasilyev Yu.K. , Natarov V.A. , Dolgareva M.G.
Published: April 2023

Мета роботи: розробити методику навчання кидку однією рукою від плеча і перевірити ефективність її застосування на уроках фізкультури в 6-х класах. Матріал і методи. У дослідженні взяли участь 62 школяра 6 класів, з них 31 учень увійшли експериментальної групи, 31 – до контрольної. Методи дослідження: аналіз  науково-методичної літератури, відеозйомка з наступною комп'ютерною обробкою матеріалу, педагогічні спостереження, тестування, метод математичної статистики з застосуванням комп'ютерних програм „EXEL” і „SPSS-11”, педагогічний експеримент. Результати. Розроблена методика є досить ефективною для навчання школярів 6-х класів кидку однією рукою від плеча. Після проведеного експерименту результативність підвищилася в експериментальній групі до 6 улучень із правої сторони (t=6,8; р<0,001), з лівої сторони – до 5,7 (t=6,8; р<0,001) при достовірному зменшенні кількості помилок. Наприкінці експерименту якість володіння технікою кидка однією рукою від плеча з місця в експериментальній групі виявилося вище, ніж у контрольній групі. Випробувані експериментальної групи перевершили випробуваних контрольний групи за всіма показниками (при р<0,001). Висновки. Розроблена методика навчання кидкам із середньої відстані у баскетболі із застосування поліграфічних приладь є більш ефективною у порівнянні з традиційною.
Kırmızı Alglerden Gracilaria verrucosa'nın Biyomas Verimi ve Kimyasal Kompozisyonu Üzerine Fotoperiyot Uygulamalarının Etkisinin Belirlenmesi
Authors: AK İlknur , YILMAZ Melis , TÜRKER Gülen
Published: April 2023

Bu çalışmada kırmızı alglerden Gracilaria verrucosa (Hudson) Papenfuss tank kültür sistemlerinde 100 µmol foton m-2 s -1 ışık şiddetinde, farklı foto periyotlar (24:00, 16:08, 12:12 ve 08:16 (A:K)) uygulanarak algin büyüme hızında ve kimyasal içeriğinde meydana gelen değişimler izlenmiştir. Çalışma sonucunda deneme grupları arasında en yüksek büyüme hızı 16:8 (A:K) foto periyot uygulanan grupta bulunmuştur. Deneme gruplarının klorofil a içerikleri aydınlanma süresi arttıkça azalmıştır. Büyüme hızı arttıkça algin fikosiyanin ve fikoeritrin içeriklerinin azaldığı belirlenmiştir. Çalışmada grupların ham protein içerikleri %9,14±0,13 (24:24) ile %10,92±0,25 (12:12) arasında değişim göstermiştir. Tüm deneme gruplarının yağ içerikleri %1’den az bulunmuştur. Alg talluslarının kül içerikleri arasında istatistiksel olarak önemli derece farklılıkların olmadığı görülmüştür (p>0,05). Deneme gruplarının agar içerikleri %8,36±0,24– 13,19±1,09 arasında değişim göstermiştir. En yüksek agar içeriği 8:16 foto periyot uygulanan grupta saptanmıştır. Yüksek ışık şiddeti ve uzun aydınlanma sürelerinin algin serbest radikal temizleme aktivitesini arttırdığı çalışma sonucunda saptanmıştır. Deneme gruplarının toplam fenolik madde içerikleri ile 1,82±0,03 (8:16) ile 2,84±0,04 (24:24) mg GAE g−1 ekstrakt arasında değişim göstermiştir. En yüksek toplam flavonoid içeriği 8:16 (A:K) uygulanan grupta saptanmıştır.
Nesli Tükenme Tehlikesi Altındaki Pinna nobilis (Linnaeus, 1758)'in Çanakkale Boğazı'nda 2020-2021 Yılları Arası Su Altı İzleme Çalışması
Authors: AKSU Ata , ALTINAĞAÇ Uğur , ALTAN AKSU İrem , SORARLI Güvenç , TAŞÇI Deniz , YAĞLI Hayati
Published: April 2023

Bu çalışmada; ekolojik anlamda değerli ve nesli tükenme tehlikesi ile karşı karşıya olan Pinna nobilis'in Çanakkale Boğazı'ndaki popülasyonlarının izleme çalışması yapılması hedeflenmiştir. Çalışma sahası olarak Çanakkale Boğazı’nda 30 örnekleme istasyonunda 2020 ve 2021 yıllarında toplamda 87000 m2’lik alanda su altı izleme çalışması yapılmıştır. Ölü ve canlı P. nobilis’lerin tespiti su altı hat-çizgi sayım metoduyla tüplü dalış yöntemiyle yapılmıştır. Su altı görsel sayım metoduyla sayılan pinalar housingli su altı kamerasıyla kayıt altına alınmıştır. Araştırma verilerinden elde edilen sonuçlara göre; boğazdaki pinaların toplamda ölüm oranı %81,15’ten %94,67’ye yükselmiştir. 2020 yılında gözlemlenen ölü ve canlı pinaların toplam sayısı 5880 iken; 2021 yılımda bu sayı 4002’ye düşmüştür. P. nobilis bireylerinin bu araştırmadaki boy-ağırlık ilişkisi regresyon denklemi toplam boy (B) için; W= 0,031L2,9361 (R2=0,913), genişlik(G) için; W= 0,133L3,8656(R2=0,7706), kalınlık (K) için; W=22,741L2,1051(R2= 0,8484) olarak hesaplanmıştır. En yüksek frekansa sahip canlı pinalar 0-100 gram aralığında yer alırken, boy grubunda ise en yüksek frekans 15-20 cm. aralığında gözlenmiştir. Örnekleme istasyonlarından toplam 381 canlı numune kaydedilmiştir. Bu pinalarda ortalama boy(B) 28,10 ± 8,20 cm olarak ölçülmüştür. Canlı pinaların ağırlığı 15g. ile 1543g. arasında değişmekte olup; ortalama 317,57 ± 252,99g. olarak kaydedilmiştir. Saha çalışması boyunca toplam 2183 dakika dalış yapılmıştır.
Criminal Conviction of Social Workers in the Criminal Justice System
Authors: Panjaitan Christin Novianty , Tambunan Afriyanti Debora , Antonius Richard Wilson , Lutfiadi Lutfiadi
Published: April 2023

This study aims to analyze the concept of social worker sentencing policy, and to know the criminal law of social work as a solution to reduce overcapacity in Indonesian Correctional Institutions. This study uses a normative juridical method with analytical descriptive specifications. The findings showed that the current policy of imposing criminal sanctions is felt to be ineffective because every criminal who is proven and has the power of law to carry out legal proceedings in prison is still not appropriate if the weight of the crime is a minor offenses. As a solution, the imposition of criminal sanctions on social workers has been determined to be appropriate. It is necessary to have a criminal law policy so that what becomes a legal issue can be resolved effectively, likewise with the effectiveness of the provision of prison sentences, which are no longer in accordance with prison conditions, leading to an increase of 500 to 900 percent, which eliminates the duties and functions of Correctional Institutions as a coaching and protection institution for convicts. In conclusion, the policy of imposing criminal penalties on social workers is appropriate in order to reduce over capacity.
Fundamentos para una Pedagogía de la Muerte
Authors: De la Herrán Gascón Agustín , Cortina Mar
Published: April 2023

En este artículo analizamos, en primer lugar, el estatus que en la actualidad la sociedad mercantilista y posmoderna, le otorga a la muerte; así como su refracción en la educación y la enseñanza. Terminaremos proponiendo elementos para una fundamentación pedagógico-didáctica de la Educación para la Muerte.
Aproximación al mejoramiento profesional de docentes, en una experiencia chilena de formación permanente, en modalidad blended-learning: opiniones y significados
Authors: Garrido Miranda José Miguel , Meyer Aguilera Eduardo , Sandoval Rodríguez Katia , Contreras Guzmán David , Mujica Appiani Evelyn
Published: April 2023

Este trabajo analiza, desde una experiencia práctica de formación permanente de docentes del área de formación profesional implementada en Chile, los significados que los protagonistas hacen del proceso de mejoramiento profesional y el aporte de las TIC en una modalidad de trabajo blended-learning. El artículo se centra en el sentido que adquiere la cualificación profesional y la colaboración como elementos que pueden sustentar un mejor desempeño personal en un programa de formación. El análisis concluye con un aproximación al valor e importancia que debe prestarse a lo que se ha definido como "trastienda de lo virtual" o conjunto de interacciones que influye en el desempeño del sujeto.
Reflexiones sobre el tiempo escolar
Authors: Vázquez Recio Rosa
Published: April 2023

El artículo se centra en el estudio del tiempo escolar. Se parte de la tesis que no existe una única forma de entender y explicar el tiempo. El marco explicativo ha seguido -hasta el momento- los pasos de la concepción tradicional asentada en una visión objetiva del mismo, acorde, por otra parte, con una concepción de la organización escolar como entidad estable y uniforme. Es la visión denominada "organización del tiempo escolar". La propuesta que se realiza, tras el análisis de la anterior, es aquella que entiende tanto el tiempo como la organización de un modo diferente, y es la que hemos denominado, "el tiempo en la organización escolar". Sus elementos clave son: el tiempo subjetivo, la organización como mundo de la vida cotidiana, planificación móvil y tiempo flexible, inclusión y, tiempo multidimensional y pluralidad simultánea.
Ensino da Física: tendências e desafios na prática docente
Authors: Werner Da Rosa Cleci , Becker da Rosa Álvaro
Published: April 2023

Desde as sociedades antigas até as contemporâneas, a educação como processo de mediação sistematizado, recebe a denominação de educação escolar, apoiando suas bases em ações intencionais. Os conteúdos escolares decorrentes dos conhecimentos historicamente acumulados pela humanidade passam a ser um dos elementos integrantes desta ação intencional, mas não único, encontrando no ato didático-pedagógico um importante aliado.
Estrategias formativas en contextos no formales orientadas al desarrollo socioprofesional
Authors: Tejada Fernández José
Published: April 2023

En el presente artículo se abordan las estrategias formativas en contextos no formales para el desarrollo socioprofesional. Se parte de la no asunción de las lindes tan marcadas entre los diferentes sistemas formales y no formales, por cuanto hoy día la permeabilidad-flexibilidad intersistemas es la característica más evidente.

De alguna forma se apuesta por la formación a lo largo de la vida como enfoque que puede asumir e integrar perfectamente todo lo relativo a los contextos no formales conjuntamente con los formales e informales.

Ubicados en este contexto se conceptualizan las estrategias y se fija el propio referente teórico para llegar a propuesta de clasificación de estrategias formativas ligadas a lógica del desarrollo de la formación basada en competencias. En este sentido se ubican algunas estrategias ligadas al saber (competencia técnica), al saber-hacer (competencia metodológica), al saber-ser (competencia personal) y al saber-estar (competencia participativa), para proponer todo un conjunto de estrategias formativas globales e integradoras de las anteriores.