bluuebunny/crossref_metadata_2025 huggingface dataset:
Faktor yang Berhubungan dengan Kecelakaan Kerja pada Pekerja Bengkel Las di Distrik Abepura Kota Jayapura
Authors: Mudasir Aisyah , Medyati Novita , Irjayanti Apriyana
Published: April 2023

The welding industry is part of the informal sector industry whose work is associated with many hazards and risks that can increase the number of work accidents. With the increasing cases of work accidents, it is necessary to look for the causes or things that influence them so that prevention and mitigation efforts can be carried out. Objective: To determined the factors associated with work accidents among welding workshop workers in the Abepura District, Jayapura City. Methods: This research was conducted in an analytic observational manner with a cross-sectional design. The location of this research was carried out at welding workshops in the Abepura District, totaling 12 workshops. The sample of this research is 41 workers selected by purposive sampling technique. Data were analyzed using univariate and bivariate with a chi-square test. Results: The study showed that there was no relationship between age p = 0.671 (p>0.05) and education p = 1.000 (p>0.05) with the incidence of work accidents among welders. There was a relationship between years of service p = 0.033 (p<0.05), knowledge p=0.001 (p<0.05), and unsafe actions p=0.027 (p<0.05) with occupational accidents in welders. Conclusion: There is a relationship between years of service, knowledge, and unsafe actions with work accidents.Keywords:  welding workshop,  work accidents, worker
INVESTMENT POTENTIAL OF NON-BANKING FINANCIAL INSTITUTIONS IN THE SYSTEM OF ENSURING SUSTAINABLE DEVELOPMENT OF THE NATIONAL ECONOMY
Authors:   Chernihiv Polytechnic National University, Ilchuk Valerii , Shpomer Tetiana ,   Chernihiv Polytechnic National University, Shpomer Andrii ,   Chernihiv Polytechnic National University
Published: April 2023

The peculiarities of the investment potential of non-banking financial institutions (NFI) are de-termined, its structure and factors of the macro-and microenvironment that affect its formation and growth are considered. It is noted that, under the conditions of effective functioning and development, NFI can form sufficient investment potential to take a proper place among providers of investment cap-ital in the real sector of the national economy. The role of the state in the development of NFI, in creating favorable operating conditions for all subjects of the financial market in order to activate the processes of attraction and accumulation of financial resources to meet the demand for investments by economic subjects, is defined. The components of resource provision of the investment potential of NFI arecon-sidered and analyzed, and effective ways of filling them were determined. The considered factors that affect the rate of formation and growth of the investment potential of NFI show that it is necessary to strengthen the management functions of the management system in the directions that determine the effectiveness of the functioning of these institutions. A functional scheme for managing the processes of forming and increasing the investment potential of the NFI is proposed, which determines the directions of managerial influence to increase the efficiency of the specified processes.
Cultura organizacional, competitividad y teoría del caos desde la perspectiva de los profesores en educación superior
Authors: Céspedes-Gallegos Susana , Vázquez-González Luis , Pacheco-López Esteban , Ceja-Romay Sandra , Clara-Zafra Miguel , De-León-Cortés Gilberto
Published: April 2023

El actual estudio permite la comprensión y reflexión sobre los determinantes de la cultura organizacional, la competitividad, la percepción del caos y su complejidad por parte de los profesores del Tecnológico Nacional de México Campus Coatzacoalcos en el estado de Veracruz-México. El tipo de investigación es mixta, porque para su análisis de estudio se encuentra estructurado en dos partes: Un análisis cuantitativo y cualitativo. Su enfoque es descriptivo y con un corte de tipo transversal, desde la postura empírico-analítica. Se determinó un muestreo de tipo no probabilístico a conveniencia de 155 profesores de una población estimada de 178 colaboradores correspondiente al semestre febrero-junio del 2022, del cual se tomaron 2 muestras representativas por género, muestra 1 compuesta por 43 profesores del género masculino y muestra 2 con 112 profesores del género femenino. Se aplicó un instrumento de medición, el consta de 41 ítems y dos variables a medir: Cultura organizacional y competitividad y posteriormente un instrumento sobre medición del caos y su complejidad el consta de 9 ítems. Los principales resultados demuestran a través de las medidas de tendencias central, de una prueba de parametría y de una correlación de U de Mann-Whitney y de Pearson, que no existe una relación entre la cultura organizacional y la competitividad entre los profesores de la institución, así como también los docentes no perciben el caos, pero si la complejidad del mismo en un contexto educativo.
O pré-natal do parceiro nas etapas de construção do plano de parto
Authors: Santos Aline Ost dos , Scopel Mariana Ferreira , Cogo Silvana Bastos , Sehnem Graciela Dutra , Pilger Carolina Heleonora , Salbego Cléton , Sari Vanúzia , Possatti Fabiane Marzari , Oliveira Suelen Gulart Portalette de , Silva Vanessa Braz
Published: April 2023

Objetivo: Compreender como a realização do pré-natal do parceiro influencia a participação destes na tomada de decisão nas etapas de construção do plano de parto. Métodos: Revisão integrativa de literatura com busca durante o mês de maio de 2022, via portais: Nacional Library of Medicine, Biblioteca Virtual em Saúde, Scientific Eletronic Library Online, Web of Science e SCOPUS, por dois revisores de forma independente. Os critérios de elegibilidade dos estudos foram: artigos primários que respondem à pergunta norteadora nos idiomas português, inglês ou espanhol sem recorte temporal.  Resultados: Elegeu- se nove artigos, sendo 1 nacional e 8 internacionais. Destes, dois artigos com nível de evidência quatro e sete artigos nível de evidência seis. O maior envolvimento do parceiro foi na etapa informativa do plano de parto com seis estudos e três estudos abarcaram todas as etapas da construção do plano de parto. Considerações finais: É preciso avançar para além da etapa informativa no envolvimento masculino. A paternidade ativa deve ser estimulada pelos profissionais de saúde, especialmente pelo enfermeiro.
VIX korku endeksi ile seçilmiş varlık getirileri arasındaki ilişkilerin araştırılması
Authors: ÖZHAN Ecem , ÖZBEY Fela , KANDIR Serkan
Published: April 2023

Bu çalışmanın amacı aylık veriler kullanılarak Ocak 2002 –Aralık 2021 döneminde BİST 100 endeksi, ham petrol, dolar kuru ve Cumhuriyrt altını getirileri ile VIX endeksi (Volatility Index, VIX) arasındaki ilişkilerin vektör otoregresif (vector autoregressive, VAR) modeli yardımı ile analiz edilmesidir. Katsayı tahminler, istatistiksel olarak BİST 100 endeksi ve dolar kuru getirilerindeki hareketlerin sistemde yer alan değişkenlerin hareketleri ile açıklanamadığına işaret etmektedir. Granger Nedensellik testsonuçları; dolar getirileri Cumhuriyet altını getirilerinin Granger nedenseli, BİST 100 endeks getirileri ve VIX endeksi ise petrol getirilerinin Granger nedenseli olduğu yönündedir. Dolayısıyla yatırımcıların dolar getirilerini kullanarak Cumhuriyet altını getirilerini, BİST 100 endeksi getirilerini ve VIX endeksini kullanarak petrol getirilerini daha iyi öngörebilme olasılığı mevcuttur. Etki-tepki fonksiyonları, şoklara en uzun süre tepki veren değişkenin VIX endeksi olduğunu göstermektedir.
Tüketicilerin sokak lezzeti tercihlerinde satıcılarının marka bilinirliği algılarının etkisi: Youtuberların aracı rolü
Authors: AVCI Nuri
Published: April 2023

Günümüzde iş yaşam dengesi, “zamanındalık” ve “yeterlilik” kavramları etrafında şekillenmekte, çalışanın günü adeta bir yarış içinde geçmektedir. Gündelik yaşamda, zaman önemli bir denge aracı olmaktadır. Sokak lezzetleri her yerde ve her zaman kolay erişebilirlik yönüyle bu ihtiyacı fazlasıyla karşılamaktadır. Yeterlilik olgusu ise, gittikçe artan hayat pahalılığı nedeniyle insanların ucuz, lezzetli ve doyurucu gıdaya erişimini öncelikli bir konu haline getirmektedir. Bu çalışmanın amacı; tüketicilerin sokak lezzeti tercihlerinde Youteberların rolü ve etkisini ortaya koymaktır. Araştırma nicel araştırma deseninde planlanmış ve internet üzerinden yürütülmüştür. Araştırma için geliştiren anket formu, Linkedin sosyal medya platformu üyeleri arasından yargısal örnekleme ile seçilen farklı organizasyonların insan kaynakları departmanlarında insan kaynakları profesyoneli olarak çalışan ve sokak lezzetlerini sıkça deneyimleyen 400 kişiyle bir mail ekinde paylaşılmış ve 196 katılımcıdan dönüş sağlanmıştır. Veri toplama aracı olarak geliştirilen anket formu; Kişisel Bilgiler, Tüketiciye Yönelik Marka Değeri Ölçeği; Tüketici Marka Tercihi Ölçeği ile Youtuber Algı Ölçeğinden oluşmaktadır. Araştırmadan elde edilen bulgulara göre; tüketicilerin sokak lezzeti tercihleri ile satıcıların marka bilinirlik algıları arasında olumlu ve anlamlı ilişki bulunmaktadır. Youteberların bu ilişkide olumlu ve anlamlı katkısı olmakla birlikte aracılık rolü tanımlanamamıştır.
Düşük gelir grubundaki ülkelerin yetersiz beslenme durumunun panel veri analiz yöntemiyle incelenmesi
Authors: KORKMAZ Katip , ŞENOL Osman , AKBULUT Fevzi
Published: April 2023

Bir toplumun en önemli kaynağı çocuklarıdır. Ülkeler arası gelişmişlik karşılaştırmalarında en çok tercih edilen gösterge bebek ölüm oranları olmaktadır. Bir ülkenin bebek ölüm oranına bakılarak ülkenin refah düzeyi, insanların temel sağlık hizmetlerine erişip erişememe durumu ve yeterli düzeyde beslenmenin olup olmadığı gibi birçok konu hakkında bilgi sahibi olunabilir. Bu kapsamda ele alınan bu araştırma, bebek ölümlerinin en fazla yaşandığı düşük gelirli ülkelerde beslenme ile ilişkisini ortaya koymak amacı taşımaktadır. Araştırma kapsamında 58 ülkeye ait beslenme ve temiz suyla ilgili göstergelerin bebek ölüm oranı üzerinde etkisi panel veri analiz yöntemi ile incelenmiştir. Değişkenlerin zaman boyutu 2000-2019 dönemlerini kapsamaktadır. Araştırma sonuçları incelendiğinde düşük gelir grubu ülkelerde gıda derinliğinde gerçekleşen %1 düzeyinde bir artışın gerçekleşmesi durumunda gerçekleşen bebek ölümlerinde %0,43 düzeyinde bir azalışın olabileceği tespit edilmiştir. Diğer taraftan yoksulluk düzeyinin yaygınlaşmasında bebek ölümleri üzerinde artırıcı bir etki yaptığı ve model içerisinde anlamlı çıktığı görülmektedir. Ayrıca bebek ölümleri üzerindeki en yıkıcı etkinin gıda derinliğindeki artış olduğu ve bu sebepten yeterli gıdaya ulaşımın sağlanmasının hayati öneme sahip olduğu görülmektedir.
Mechanochemistry-Amended Barbier Reaction as an Expedient Alternative to Grignard Synthesis
Authors: Nallaparaju Jagadeesh Varma , Nikonovich Tatsiana , Jarg Tatsiana , Merzhyievskyi Danylo , Aav Riina , Kananovich Dzmitry
Published: April 2023

Organomagnesium halides (Grignard reagents) are essential carbanionic building blocks widely used in carbon-carbon and carbon-heteroatom bond-forming reactions with various electrophiles. In the Barbier variant of the Grignard synthesis, the generation of air- and moisture-sensitive Grignard reagents occurs concurrently with their reaction with an electrophile. Although operationally simpler, the classic Barbier approach suffers from low yields due to multiple side reactions, thereby limiting the scope of its application. Here, we report a mechanochemical adaptation of the Mg-mediated Barbier reaction, which overcomes these limitations and facilitates the coupling of versatile organic halides (e.g., allylic, vinylic, aromatic, aliphatic) with a diverse range of electrophilic substrates (e.g., aldehydes, ketones, esters, amides, O-benzoyl hydroxylamine, chlorosilane, borate ester) to assemble C–C, C–N, C–Si, and C–B bonds. In contrast to the classic two-step Grignard synthesis, the mechanochemical approach has the advantage of being essentially solvent-free, single step, operationally simple, immune to air, and surprisingly tolerant to water and other proton donors. Mechanistic studies have clarified the role of mechanochemistry in the process, indicating that the reaction predominantly proceeds via the generation of transient organometallics, which occurs rapidly due to improved mass transfer and activation of the surface of magnesium metal
Electronic Couplings for Singlet Fission Processes Based on The Fragment Particle-Hole Densities
Authors: Wang Yu-Chen , Feng Shishi , Kong Yi , Huang Xunkun , Liang WanZhen , Zhao Yi
Published: April 2023

A new diabatization scheme is proposed to calculate the electronic couplings for the singlet fission process in multichromophoric systems. In this approach, a robust descriptor that treats single and multiple excitations on an equal footing is adopted to quantify the localization degree of the particle and hole densities of the electronic states. By maximally localizing the particles and holes in terms of predefined molecular fragments, quasi-diabatic states with well-defined characters (locally excited, charge transfer, correlated triplet pair, etc.) can be automatically constructed as the linear combinations of the adiabatic ones, and the electronic couplings can be directly obtained. This approach is very general in that it applies to electronic states with various spin multiplicities and can be combined with various kinds of preliminary electronic structure calculations. Due to the high numerical efficiency, it is able to manipulate more than 100 electronic states in diabatization. The applications to the tetracene dimer and trimer reveals that high-lying multiply-excited charge transfer states have significant influences on both the formation and separation of the correlated triplet pair, and can even enlarge the coupling for the latter process by one order of magnitude.
Comprehensive analysis of relaxation decays from high-resolution relaxometry
Authors: Bolik-Coulon Nicolas , Zachrdla Milan , Bouvignies Guillaume , Pelupessy Philippe , Ferrage Fabien
Published: April 2023

Relaxometry consists in measuring relaxation rates over orders of magnitude of magnetic fields to probe motions of complex systems. High-resolution relaxometry (HRR) experiments can be performed on conventional high-field NMR magnets equipped with a sample shuttle. During the experiment, the sample shuttle transfers the sample between the high-field magnetic center and a chosen position in the stray field for relaxation during a variable delay, thus using the stray field as a variable field. As the relaxation delay occurs outside of the probe, HRR experiments cannot rely on the control of cross-relaxation pathways, which is standard in high-field relaxation pulse sequences. Thus, decay rates are not pure relaxation rates, which may impair a reliable description of the dynamics. Previously, we took into account cross-relaxation effects in the analysis of high- resolution relaxometry data by applying a correction factor to relaxometry decay rates in order to estimate relaxation rates. These correction factors were obtained from the iterative simulation of the relaxation decay while the sample lies outside of the probe and a preceding analysis of relaxation rates which relies on the approximation of a priori multi-exponential decays by mono-exponential functions. However, an analysis protocol matching directly experimental and simulated relaxometry decays should be more self consistent. Here, we introduce Matching INtensities for the Optimization of Timescales and Amplitudes of motions Under Relaxometry (MINOTAUR), a framework for the analysis of high-resolution relaxometry that takes as input the intensity decays at all fields. This approach uses the full relaxation matrix to calculate intensity decays, allowing complex relaxation pathways to be taken into account. Therefore, it eliminates the need for a correction of decay rates and for fitting multi-exponential decays with mono-exponential functions. The MINOTAUR software is designed as a flexible framework where relaxation matrices and spectral density functions corresponding to various models of motions can be defined on a case-by-case basis. The agreement with our previous analyses of protein side-chain dynamics from carbon-13 relaxation is excellent, while providing a more robust analysis tool. We expect MINOTAUR to become the tool of choice for the analysis of high-resolution relaxometry.
Mechanism of Particle-Mediated Inhibition of Demetalation for Single-Atom Catalytic Sites in Acidic Electrochemical Environments
Authors: Wang Yu-Cheng , Gao Xiao-bing , Xu Wei Cheng , Huang Huan , Zhao Kuang-min , Ye Hong , Zhou Zhiyou , Zheng Nan-Feng , Sun Shigang
Published: April 2023

Demetalation, caused by the electrochemical dissolution of metal atoms, poses a significant challenge to the practical application of single-atom catalytic sites (SACS) in proton exchange membrane-based energy technologies. One promising approach to inhibit SACS demetalation is the use of metallic particles to interact with SACS. However, the mechanism underlying this stabilization remains unclear. In this study, we propose and validate a unified mechanism by which metal particles can inhibit the demetalation of Fe SACS. Metal particles act as electron donors, decreasing the Fe valence by increasing the electron density at the FeN4 position, thereby strengthening the Fe-N bond, and inhibiting electrochemical Fe dissolution. Different types, forms, and contents of metal particles increase the Fe-N bond strength to varying extents. A linear correlation between Fe valence, Fe-N bond strength, and electrochemical Fe dissolution amount supports this mechanism. Our screening of a particle-assisted Fe SAC led to a 78% reduction in Fe dissolution, enabling continuous operation for up to 430 hours in a fuel cell. These findings contribute to the development of stable SACS for energy applications.
Quantum Descriptors for Predicting and Understanding the Structure-Activity Relationships of Covalent Warheads
Authors: Liu Ruibin , Vazquez-Montelongo Erik , Ma Shuhua , Shen Jana
Published: April 2023

Predictive modeling and understanding chemical warhead reactivities have the potential to accelerate targeted covalent drug discovery. Here we used density functional theory calculations to reexamine the ground-state quantum descriptors and important structure-activity (SAR) relationships of thiol-Michael additions. The calculated reaction profiles of the singly- and doubly-activated olefins including several model warheads related to afatinib revealed strong correlations between the reaction barriers and electronic properties related to the carbanion intermediate. Among them the change in the Cb charge upon carbanion formation is the strongest reactivity predictor, while the least expensive reactant-only properties, the electrophilicity index and the carbon charge also show strong rank correlations, suggesting their utility as quantum descriptors for building machine learning models. We also investigated the reactivity enhancement effect of the  beta-dimethylaminomethyl (DMAM) substitution which led to several FDA-approved covalent drugs. Our data revealed that the  -DMAM substitution is protonated at neutral pH and it lowers the reaction barrier through inducing the charge accumulation at the C  upon carbanion formation; by contrast, the inductive effect of the beta-trimethylaminomethyl substitution is diminished due to steric hindrance. The data also suggested that the beta-DMAM substitution downshifts the thiol pKa and thereby activates EGFR’s front pocket cysteine C797 for nucleophilic attack. Taken together, our study contributes novel insights for large-scale modeling and understanding the SARs of covalent warheads.
Recent Advances in Graphene-Based Electrical Glucose Monitoring
Authors: Li Zihan , Liu Siting
Published: April 2023

The WHO notes that diabetes can contribute to various health problems, such as blindness, lethargy, kidney failure, strokes, numbness, and heart attacks. Diabetes can be an even worthy- noting problem in developing countries. In many developing countries, there has been significant economic growth over the past decade, but current projections indicate a slowing of this trend. Thus, it is crucial to prevent missed diagnoses and delayed treatment, as these could lead to fatal consequences. Regular glucose monitoring is an indispensable diagnostic tool that allows doctors to identify early symptoms of diabetes and administer timely treatment to avert severe complications. This review provides a peek into the basics of graphene, as well as the very recent advances since 2020 utilizing graphene, GO, rGO, and other novel graphene composite to monitor glucose.
The C-type lectin domain of CD62P (P-selectin) functions as an integrin ligand
Authors: Takada Yoko K , Simon Scott I , Takada Yoshikazu
Published: April 2023

Recognition of integrins by CD62P has not been reported and this motivated a docking simulation using integrin αvβ3 as a target. We predicted that the C-type lectin domain of CD62P functions as a potential integrin ligand and observed that it specifically bound to soluble β3 and β1 integrins. Known inhibitors of the interaction between CD62P–PSGL-1 did not suppress the binding, whereas the disintegrin domain of ADAM-15, a known integrin ligand, suppressed recognition by the lectin domain. Furthermore, an R16E/K17E mutation in the predicted integrin-binding interface located outside of the glycan-binding site within the lectin domain, strongly inhibited CD62P binding to integrins. In contrast, the E88D mutation that strongly disrupts glycan binding only slightly affected CD62P-integrin recognition, indicating that the glycan and integrin-binding sites are distinct. Notably, the lectin domain allosterically activated integrins by binding to the allosteric site 2. We conclude that CD62P-integrin binding may function to promote a diverse set of cell–cell adhesive interactions given that β3 and β1 integrins are more widely expressed than PSGL-1 that is limited to leukocytes.
Features of the formation of pathogenetic changes of the placental complex on the background of intra-uteronomy infection
Authors: Hoshovska Alisa
Published: April 2023

Abstract. One of the main complications during early embryogenesis and placentation is placental insufficiency. Under the influence of various factors, namely infectious factors, which, depending on the biological specificity, negatively affect the germ cells of the parents, the development of the embryo, the formation of the trophoblast and the placenta, which in turn leads to a violation of the function of the placental complex and gestational complications during pregnancy. Due to the expansion of diagnostic possibilities for detecting placental function disorders, as well as in connection with the emergence of new data on the mechanisms of blood circulation regulation in the placenta to assess the functional state of the feto-placental complex at the stage of the formation of primary placental insufficiency against the background of inflammatory diseases of the female genital organs, we were determined the dopplerometric pattern of blood flow (ovarian artery, intervillous space) in women of the main and control groups. Goal. To determine the dopplerometric pattern of blood flow characteristics (ovarian artery, chorionic volume, blood flow study in different areas of the chorion) in pregnant women against the background of inflammatory diseases of the female genital organs in the early trimester of pregnancy. Materials and methods. The main group consisted of 37 women with signs of inflammatory diseases of the female genital organs, the control group consisted of 30 practically healthy women. The results. Obtaining new data on the mechanisms of blood circulation regulation in the ovarian artery and intervillous space at the stage of formation of the placental complex in physiological and complicated pregnancy will allow to supplement the question of the pathogenesis of the development and prevention of placental insufficiency. Conclusions. The study of the blood flow of extraembryonic structures in the early stages of gestation allows to diagnose structural changes at the stage of placenta formation. Violation of blood flow in the first trimester of pregnancy against the background of an infectious factor that penetrates into various vascular links of the mother-placenta-fetus system with the deduction of blood flow volume indicators demonstrates the regularity of the formation of disturbed hemodynamics at the stage of formation of the placental complex. These indicators can serve as a criterion for the selection of women of the risk group for the formation of primary placental insufficiency.
Algoritmos para el procesamiento de imágenes utilizando satélites del programa COPERNICUS de la Unión Europea
Authors: Dávila Sguerra Manuel
Published: April 2023

Al tema satelital se le debe dar la importancia debida para Colombia y esto lleva a incentivar su estudio en las comunidades académicas del país, especialmente en las universidades. Con la apertura de los datos satelitales de Copernicus, el programa satelital de la Unión Europea, y la aceptación de UNIMINUTO como miembro oficial de la Academia Copernicus, se abre una oportunidad para crear procesos formativos para interpretar las imágenes satelitales. Estos procesos necesitan conocimientos sobre el espectro electromagnético y exige procesos matemáticos para interpretar los datos que captan los sensores de los satélites y que reposan en los centros de datos. El Parque Científico de Innovación Social de UNIMINUTO, a través de la unidad de imágenes satelitales, se ha propuesto el objetivo de formar profesionales y estudiantes para el manejo de los diferentes algoritmos para analizar los fenómenos de la tierra en sus diferentes formas. El libro que se propone editar recopila el conocimiento adquirido con el trabajo de algo más de dos años estudiando, procesando y poniendo en marcha algoritmos que incluyen software, biología, física y ciencias satelitales, como apoyo a los planes de formación.
Development, validation and reliability of the Smith Toolkit for Integrated Health Related Quality of Life (STI-HRQoL)
Authors:   Department of Sport and Movement Studies, Faculty of Health Sciences, University of Johannesburg, South Africa, Smith Lynn , Morris-Eyton Heather ,   Department of Sport and Movement Studies, Faculty of Health Sciences, University of Johannesburg, South Africa
Published: April 2023

The current burden on the public healthcare system in South Africa has been exacerbated by a shortage of medical staff, insufficient consultation time and patients’ inability to have regular health screenings due to financial constraints and logistical challenges. An integrated toolkit assessing health-related quality of life would be useful in identifying the areas that need improvement in disease management, enabling patients to reach their full potential.
Research on the Problems and Countermeasures of Chinese Enterprises’ Outward Foreign Direct Investment in the Context of Global Economic Uncertainty
Authors: Peng Yue , Xu Chongchong , Dong Shuyan
Published: April 2023

Outward foreign direct investment (OFDI) is an important way to promote China’s economic transformation and achieve high-quality economic development, and it plays an important role in building a new development pattern that focuses on the domestic systemic circulation as the main body, with domestic and international double circulations promoting each other. In the context of the uncertainty of the current global economic environment, investment protectionism is arising in various countries, and there is an obvious trend of anti-globalization. The sudden outbreak of COVID-19, the Russian Ukrainian war, and other conflicts have severely damaged the global economy and investment, significantly increased the risk of overseas investment, and reduced the confidence in outward foreign direct investment. Chinese enterprises face serious challenges and problems in OFDI. This article starts from explaining the current situation of Chinese enterprises’ OFDI and continues with an analysis on the existing problems and puts forward suggestions to increase foreign investment in China.
Research on the Construction of Electronic Information Professional Groups in Higher Vocational Colleges Serving the Upgrading of Regional Information Industry
Authors: Zhang Xiaonuo , Han Nina , Chen Yuanyuan
Published: April 2023

Through studying the current situation of the construction of electronic information professional groups in higher vocational colleges serving the upgrading of regional information industry, this paper proposes establishing inter-school professional groups from a horizontal perspective, making appropriate adjustments on the professional groups, and actively adapting to the industrial development. On this basis, the integration of industry-education and in-depth cooperation between schools and enterprises can be realized, and the path of realizing “three-sharing, three-integration” professional group service industry upgrading is innovatively proposed.
Surface treatment of Ti and Ti composites using concentrating solar power and laser
Authors: KOVÁČİK Jaroslav , EMMER štefan , RODRIGUEZ José , CAÑADAS Inmaculada , ŠUGÁR Peter , ŠUGÁROVÁ Jana , BOČÁKOVÁ Barbora , BERONSKÁ Naďa
Published: April 2023

Titanium and its composites are widely used in implants of bones and teeth. Besides mechanical properties also surface characteristics are very important in these biomaterials. Very important are properties such as surface topography, roughness, chemistry, and surface energy, wettability, and Ti oxides or Ti nitride layers thickness. The concentrated solar power was used successfully to nitride Ti Grade 2 and powder metallurgical Ti prepared from hydrogenated dehydrogenated Ti powder. The nitriding experiments were performed under nitrogen atmosphere at different temperatures and time in SF40 (40kW horizontal solar furnace) at PSA, Spain. Concentrated solar energy has been shown to be an economical alternative to conventional gas nitriding techniques in electric furnaces, CVD, PVD, plasma nitriding, or laser treatments. It has been observed that the solar process represents a significant reduction of the heating time to several minutes (up to 5 minutes at temperature range 500-1000 °C), a clean and non-polluting high-temperature process. The formation of continuous and homogeneous surface layers of TiN, Ti2N and their mixture according to the nitriding temperature was investigated using X-ray diffraction and electron microscopy. Laser surface treatment is of great significance in modifying surface morphology and surface and near-surface region microstructures. Effects of lase treatment parameters on machined surface morphology, surface roughness and chemistry are analyzed in this study and discussed from the point of view of application in dental implantology. The current advances of our research group in application of laser-treated powder metallurgy prepared Ti-based materials are analyzed and discussed.
Tytus naukowcem albo rozważania o tym, czy Papcio Chmiel zajmował się naukową fantastyką?
Authors:   Instytut Dziennikarstwa, Mediów i Komunikacji Społeczne, Uniwersytet Jagielloński w Krakowie, Kajtoch Wojciech
Published: April 2023

Artykuł traktuje komiksy Chmielewskiego jako realizację fantastyki groteskowej. Autora artykułu interesuje przede wszystkim groteska językowa. Nieco mniejszą, lecz także istotną rolę pełnią w analizowanym komiksie motywy związane z antyutopią. Dzięki temu komiksy wydane po 1990 roku stają się odbiciem swoich czasów. Związek komiksów z fantastyką naukową polega na tym, że rzeczywistość komiksów jest obficie wypełniona motywami zaczerpniętymi ze współczesnych i dawnych utopii i utworów SF oraz aluzjami do tej lektury.
Şerif Mardin’in Türk Din Sosyolojisine Metodolojik Katkıları Üzerine Bir İnceleme
Authors: SERİN Mustafa
Published: April 2023

Türkiye’nin önde gelen sosyal bilimcilerinden Şerif Mardin; siyaset bilimi, tarih, sosyoloji ve din sosyolojisi alanlarındaki özgün çalışmalarıyla sosyal bilimlere önemli katkılar sağlamıştır. Çalışmalarında ağırlıklı olarak din ve din sosyolojisi çözümlemeleri sunan Mardin hakkında pek çok araştırma yapılmıştır. Fakat onun din sosyolojisine ilişkin metodolojik yaklaşımları sınırlı sayıda çalışma dışında spesifik anlamda incelenmiş değildir. Dolayısıyla bu çalışma, böyle bir gereksinimden hareketle Mardin’in Türk din sosyolojisine metodolojik katkılarını incelemeyi hedeflemiştir. Bu çerçevede; Mardin’in kaleme aldığı kitaplar, makaleler, sunduğu tebliğler, kendisiyle yapılmış mülakatlar ve hakkında yapılan çeşitli çalışmalardan yararlanılmıştır. Özellikle de din sosyolojisi kapsamındaki eserleri üzerine yoğunlaşılmış olup bu çalışmalardaki metodolojik yaklaşımlar eleştirel bir bakışla çözümlenmiştir. Elde edilen sonuçlara göre, Mardin’in genelde sosyal bilimlere özelde ise din sosyolojisine yönelik metodolojisinde her şeyden önce tarihsel arka plan çözümlemelerinin, disiplinler arası yaklaşımın ve anlayıcı sosyolojinin önemli bir yerinin olduğu görülmüştür. Mardin, toplumu anlamaya yönelik olarak kavramsal araçlardan da çokça yararlanmıştır. Ayrıca çalışmalarında yalınkat değerlendirmelerden ziyade konunun arka planını, sürekliliğini ve bütünlüğünü gözeten çok katmanlı ve derinlikli analizler sunmuştur.
Umur Bey Cami Haziresindeki XVIII. Yüzyıl Serpuşlu Mezar Taşları
Authors: KÖŞKLÜ Zerrin , GÖKLER Burak Muhammet
Published: April 2023

Osmanlı Devleti’nin kuruluşundan imparatorluk oluşuna ve yıkıldığı döneme kadar devletin önemli mekanizmaları bulunan ve olumlu yönde etki eden bazı aileler söz konusudur. Bu ailelerden biriside erken dönemde devlete bir çok katkı sunan Timurtaş Paşa ve oğullarıdır. Timurtaş Paşa’nın beş oğlu arasında gerek askeri yönden gerekse ilmi yönden ön plana çıkan Umur Bey olmuştur. Türk İslam Mimarisine kazandırdığı yapıların yanı sıra kurduğu vakıflarla dikkat çeken Umur Bey, döneminde bir çok eseri tercüme ettirmiş, kitaplar yazmış ve bunları kurmuş olduğu kütüphaneye bağışlamıştır. 1461 tarihinde vefat eden Umur Bey, Bursa’daki Umur Bey Camii’nin avlusunda bulunan baldaken türbeye defnedilmiştir. Cami ve türbenin etrafını çeviren geniş hazirede toplamda 122 mezar tespit edilmiştir. Alimlere, ulemalar ve çeşitli meslek gruplarına ait olan mezarlardan sadece serpuşlu ve XVIII. yüzyıla ait olan şahideler değerlendirmeye alınmıştır. 1722’den 1794 tarihine kadarki süreci kapsayan alçak ve yüksek çerçeveli mezarlardan onu erkeklere, bir tanesi ise kadına aittir. XVIII. yüzyıla ait serpuşlu mezarlarının değerlendirilmeye alınmasındaki temel amaç ise şahidelerin tip, süsleme ve serpuş (başlık) açısından çeşitlilik ve zenginlik sunmasıdır. Nitekim mezar taşlarını değerli kılan önemli hususların başında mezar içerisindeki metinler, mevki ve derece bildiren başlıklar son olarak da dönemin üslubunu aktaran tezyini kurgusu gelmektedir.
Chomsky’nin Doğalcılığa Dair Görüşleri Ve Yöntemsel Doğalcılığındaki Orta Yolculuk
Authors: KOYUNCU Merve
Published: April 2023

Çağdaş zihin felsefesinde insanın neliğini açıklamaya yönelik girişimlerin olduğu alanlarda doğalcı anlayış hâkimdir. Doğalcılık kabaca gerçekliğin doğaüstü hiçbir unsur içermediği fikridir. Bu fikir zihin-beden problemi sahasında genellikle indirgemeci tavırla temayüz eder. Zihin bedene indirgenmek istendiğinde ise nitelceler, yönelimsellik, özgür irade, dil becerisi gibi zihinsel fenomenlerin doğalcı açıklaması kimi zaman yeterli gözükmemektedir. Dolayısıyla doğalcılığın zihinsel fenomenler konusunda açıklama gücünün zayıf kaldığı durumlar söz konusudur. Bu makale doğalcılığın açıklama gücünün zayıf kaldığı durumları fark eden Chomsky’nin doğalcılık eleştirisi ve aynı zamanda kendine has doğalcılığının inşasını açıklamayı hedeflemektedir. Bu doğrultuda ilk olarak doğalcılık ve problemleri açıklanmaya çalışılmıştır. Ardından Chomsky’nin doğalcılık eleştirilerinin zemininden bahsedilmiştir. Söz konusu zeminin ürettiği doğalcı anlayış olan Chomsky’nin alternatif doğalcılık biçimi; yöntemsel doğalcılığa yer verilmiştir. Chomsky, yöntemsel doğalcılığa bilim felsefesi üzerinden destekleyici veriler sunmuştur. Bu bağlamda bilimler arası birlik idealinin bilimcilik ideolojisine dönüştüğü durumlara dair Chomsky’nin eleştirilerinden bahsedilmiştir. Chomsky, bilim tarihinden getirdiği örneklerle bilimin kapsamı dışında kalan kimi fenomenlerin zamanla bilimin sınırlarına girebileceğinden söz eder. Bilimin koyduğu kurallara, yöntemine sadakati savunurken aynı zamanda bilimin sınırlarına yönelik eleştiri yaparak bir doğalcılık kuramı geliştirir. Chomsky, yöntemsel doğalcılığı, dilbilime dair görüşleri üzerinden açar. Bu nedenle çalışmada Chomskyci dilbilimsel görüşlerin yöntemsel doğalcılık içerisindeki anlamı belirginleştirilmiştir. Sonuç itibariyle Chomskyci bilim anlayışının ve dil kuramının doğalcılığı hem onaylayıp hem eleştirerek orta yolcu, makul bir doğalcılık biçimi ürettiğini söylemek mümkündür.
BİTCOİN HABERLERİNİN BİTCOİN FİYAT VE GETİRİSİ ÜZERİNE ETKİSİ
Authors: SONGUR Mehmet , ORDU Seyit
Published: April 2023

Yapılan bu çalışmanın amacı, 1.1.2016-4.12.2022 dönemini kapsayan günlük veriler yardımıyla Bitcoin ile alakalı çıkan haberler ile hem Bitcoin fiyatı hem de getirisi arasındaki ilişkiyi zamanla değişen nedensellik analizi kapsamında incelemektir. Söz konusu ilişkinin varlığı, Hacker ve Hatemi-J (2006)’nin Boostrapt Temelli Toda-Yamamoto Nedensellik Testi ve zamanla değişen nedensellik analizi kullanılarak araştırılmıştır. Elde edilen nedensellik testi bulguları, Bitcoin ile ilgili çıkan haberler ile Bitcoin fiyatı arasında karşılıklı bir nedensellik ilişkisi olduğu yönündedir. Diğer taraftan, Bitcoin getirisi ile Bitcoin ile ilgili çıkan haberler arasındaki nedensellik bulguları incelendiğinde, Bitcoin ile alakalı çıkan haberlerden Bitcoin getirisine doğru nedensellik ilişkisinin söz konusu olmadığı, buna karşın Bitcoin getirilerinden Bitcoin ile alakalı çıkan haberlere doğru bir nedensellik olduğu söylenebilir. Ayrıca, söz konusu nedensellik ilişkilerinin zamanla nasıl bir seyir izlediğine bakıldığında özellikle Bitcoin fiyatlarının arttığı dönemlerde Bitcoin ile ilgili haber sayılarının arttığı görülmüştür. Bu çerçevede hem Bitcoin hem de altcoin piyasasına yatırım yapacak bireylerin, Bitcoin ve altcoin ile alakalı çıkmış olan haberleri dikkate alarak işlem yapmaları yatırımın sağlıklı olması adına önem teşkil etmektedir.
The dendroecological xilotheque of the Pyrenean Institute of Ecology (CSIC) in Zaragoza, Spain
Authors: Pedrol Carme , Camarero J. Julio
Published: April 2023

The scientific value of botanical and zoological specimen collections may be disminishes if they are not subjected to strict processes of classification and ordination. In this article we describe the xylotheque hosted at the Zaragoza premises of the Pyrenean Institute of Ecology (IPE-CSIC) and built with the samples provided by the IPE-CSIC dendroecology group and its collaborators over the past 20 years. This collection has been classified and stored based on several dendroecological studies devoted to the analyses of annual tree rings (dendrochronology). The collection encompasses 17,935 wood samples from 123 woody plant species (108 trees, 14 shrubs and one liana). Most classified samples are cores (93%) and the rest are trunk slices (7%). The collection has remarkable samples such as tropical woods from South America and Western Africa and some very old trees and shrubs with ages over 700 years. Lastly, we discuss the scientific value of this collection as compared with similar collections from other research institutions. We finally propose future avenues for developing, strengthening and disseminating the knowledge of the xylotheque such as its digitalization. El valor científico de las colecciones de especímenes botánicos o zoológicos se resiente si no están catalogadas y ordenadas. En este trabajo se describe la xiloteca albergada en la sede de Zaragoza del Instituto Pirenaico de Ecología (IPE-CSIC). La xiloteca recoge las aportaciones del equipo de dendroecología del IPE-CSIC y de sus colaboradores a lo largo de los últimos 20 años. Esta colección se ha mantenido y catalogado a raíz de diversas investigaciones sobre ecología basadas en el estudio de los anillos anuales de crecimiento (dendrocronología). La xiloteca contiene 17.935 muestras de madera de 123 especies de plantas leñosas (108 árboles, 14 arbustos y una liana). La mayoría de las muestras catalogadas y almacenadas son testigos cilíndricos de madera (93%) y el resto son rodajas (7%). Destacan las muestras de maderas tropicales de Sudamérica y África occidental, así como muestras de árboles y arbustos que superan los 700 años de edad. Se discute el valor científico de la xiloteca en relación a colecciones similares existentes en otros centros de investigación. Finalmente, se proponen vías de desarrollo y fortalecimiento de la xiloteca, así como la divulgación de sus valores, aspectos cuyo desarrollo debe incluir la digitalización.
Time Travel… on a Geological Path
Authors: Terrasa Nebot José Luís
Published: April 2023

Scientific subjects are focused theoretically, but they are areas that require practice, with which the motivation and interest of the students decreases, mainly with the subject of Geology. Since what high school students’ value most is that the content is useful, it is difficult to arouse their interest and curiosity towards natural history. For this reason, a project was designed with a series of objectives in a multidisciplinary approach: knowing the structure, composition, geological and petrogenetic processes and the history of Earth, applying the knowledge acquired throughout the school year, learning to identify in situ the rocks and geological structures, recognize and describe the different geological periods, become familiar with the technology applied to geology, experience new methodologies, work individually and in groups, and enjoy a scientific work environment in the nature. Subsequently, based on the explained theory and recommended bibliography, the students write a report combining the results of the bibliographic study, and the results, discussion and conclusions of the field work carried out in the Alto Tajo Natural Park, Guadalajara, Spain. Las asignaturas científicas se enfocan de forma teórica, pero son ámbitos que requieren de práctica, con lo que la motivación e interés del alumnado disminuye, principalmente con la materia de Geología. Teniendo en cuenta que lo que más valora el alumnado de bachillerato es que los contenidos sean útiles, es complicado despertar su interés y curiosidad o hacia la historia natural. Por esta razón, se diseñó un proyecto con una serie de objetivos en un planteamiento multidisciplinar: conocer la estructura, composición, procesos geológicos y petrogenéticos y la historia de la Tierra, aplicar los conocimientos adquiridos a lo largo del curso, aprender a identificar in situ las rocas y estructuras geológicas, reconocer y describir los distintos períodos geológicos, familiarizarse con la tecnología aplicada a la geología, experimentar metodologías nuevas, trabajar individual y grupalmente, y disfrutar en un ambiente de trabajo científico en plena naturaleza. Posteriormente, apoyándose en la teoría explicada y en bibliografía recomendada, el alumnado redacta una memoria combinando los resultados del estudio bibliográfico, y los resultados, discusión y conclusiones del trabajo de campo realizado en el Parque Natural del Alto Tajo, Guadalajara, España.
in questa parto alcuni inconita et non peiu uisto”: American flora and fauna in the collections of the Museo del Prado
Authors: Quintanar Cabello Vanessa
Published: April 2023

The arrival of dozens of plants and animals from America after the Europeans’ encounter with this continent attracted attention from the most diverse fields of knowledge. Doctors and botanists, for example, devoted hundreds of pages to these exotic species. But the world of the arts was not alien to their arrival and throughout the Modern Age, paintings from all over Europe were populated with sunflowers, turkeys or macaws. A good example of this can be found in the collections of the Prado Museum, where American flora and fauna found a place not only in still-life painting, but also in works of an allegorical, mythological or religious nature, acquiring in each of them interesting connotations that we will analyse throughout this paper. La llegada de decenas de plantas y animales procedentes de América tras el encuentro de los europeos con este continente atrajo la atención desde los más diversos campos del saber. Médicos o botánicos, por ejemplo, dedicaron cientos de páginas a estas exóticas especies. Pero el mundo de las artes no fue en absoluto ajeno a su llegada y a lo largo de la edad moderna, cuadros de toda Europa fueron poblándose de girasoles, pavos o guacamayos. Un buen ejemplo de ello lo encontramos en las colecciones del Museo del Prado, donde la flora y la fauna americanas encontraron un hueco no solo en bodegones, sino también en obras de carácter alegórico, mitológico o religioso, adquiriendo en cada una de ellas interesantes connotaciones que analizaremos a lo largo de este artículo.
The historical collection of naturalized herpets preserved in the Museo Nacional de Ciencias Naturales of Madrid (CSIC): Analysis and Catalogue
Authors: González-Fernández José Enrique
Published: April 2023

As a result of the revision the constituent specimens of the naturalized collection of herpets of the Museo Nacional de Ciencias Naturales of Madrid, 165 specimens are considered historical and included in this work. Three of these are amphibians and 162 reptiles, in the latter we have included, for their uniqueness, four mounted skeletons. The remaining 158 are reptiles, 157 have been naturalized and one more is a skin preserved in fluid. Mostly, for the first time, their existence is showed. From the taxonomic point of view the three amphibians belong to the Anura class, more specifically to the family Bufonidae; while the reptiles are affiliated to the orders Crocodylia (31 specimens), Squamata with 82 specimens, is the largest group (29 are ofidious and 53 saurian). Finally the Testudines are represented by 49 individuals. The origin of these specimens covers 23 different countries located on the five inhabited continents. As a result of this work, specimens belonging to the original collection of Franco Dávila, collected in Dávila (1767), have been located, being, therefore, some of the oldest naturalized specimens in the vertebrate collections of the MNCN. On the other, the last naturalized specimen in the MNCN included in this work, is a Varanus komodoensis Ouwens 1912, naturalized in 1986. A first complete catalogue with all known data, at present of the specimens that make up this historical collection, is provided. Estudiados los ejemplares constitutivos de la colección naturalizada de herpetos del Museo Nacional de Ciencias Naturales de Madrid, se incluyen como históricos en este trabajo 165 ejemplares; de estos, 3 son anfibios y 162 reptiles, en estos últimos hemos incluido, por su singularidad, cuatro esqueletos montados. Los 158 restantes son reptiles 157 naturalizados y una piel conservada en fluido. En la mayoría de ellos se da a conocer su existencia, por primera vez. Taxonómicamente los tres anfibios pertenecen a la clase Anura, concretamente a la familia Bufonidae; los reptiles pertenecen a los órdenes Crocodylia (31 ejemplares), Squamata (82 ejemplares), el grupo más numeroso (29 ofidios y 53 saurios). Finalmente los Testudines están representados por 49 individuos. Todos estos ejemplares proceden de 23 países diferentes situados a lo largo de los cinco continentes habitados. Fruto de este trabajo, se han localizado ejemplares pertenecientes a la colección original de Franco Dávila, recogidos en Dávila (1767), formando parte de los vertebrados naturalizados más antiguos en las colecciones del MNCN. Por contra, el último ejemplar naturalizado en el MNCN incluido en este trabajo, es un Varanus komodoensis Ouwens, 1912, naturalizado en 1986. Por vez primera se proporciona un catálogo con todos datos conocidos, a día de hoy, de los ejemplares que conforma esta colección histórica.