bluuebunny/crossref_metadata_2025 huggingface dataset:
The benefits of yoga as an intervention for depression: a meta–analysis
Authors: Rhoads Michael , Grevstad Nels , Kirkland Rena A , Barber Madison E. , Myers Shannon , Lundstrom Traci
Published: January 2023

Depression is a major societal issue that affects a large proportion of the population. Yoga has been introduced as a viable alternative approach to reduce symptoms. While prior studies have used meta–analysis to examine the benefits of yoga for depression, these studies incorporated a small number of studies and were limited in their ability to conduct a sub–group analysis. The purpose of this study was to quantify the effect size of yoga in the treatment of depression. Inclusion criteria included experimental, quasi–experimental, and feasibility studies that examined yoga with physical postures (asanas) as a treatment for depression. Nine moderator variables were examined including type of yoga, components of yoga (i.e., breathing, meditation, or relaxation), experience of yoga instructor, depression diagnosis, type of comparison group, research design, and length of treatment. Risk of bias was assessed using the Jadad instrument. Electronic databases were used to identify studies, and the search concluded on January 31st, 2022. A total of 152 studies (150 articles) met the inclusion criteria in this meta–analysis with 8210 participants assessed. The overall weighted effect size of yoga for treatment of depression was Hedges’ g = 0.55 (95% CI 0.44–0.65), demonstrating a medium effect. Meta–regression and subgroup analyses found larger effect sizes as the amount of yoga practiced increased, when relaxation was practiced, and when participants had been clinically diagnosed with depression. Funnel plot and trim–and–fill procedure found little evidence of publication bias and the fail–safe number was 21783. These results demonstrate that yoga is an effective integrative approach in the treatment of depression. This study was limited by the methodological quality of the individual studies that make up the larger analysis, including participants who were not blind to the procedure and a failure to report withdrawals and dropouts.
Chronicle of Rovigo♣ A city that deserves rehabilitation
Authors: Ganzarolli de Oliveira João Vicente
Published: January 2023

This article addresses some relevant features of the Italian city of Rovigo, located in the Northeastern Italy’s Veneto region. Unable to compete with the nearby cities of Venice, Padua and Ferrara in terms of art and culture in general, Rovigo ended up victim of an unfair judgement expressed in a couplet unfairly attributed to Dante Alighieri. The main goal of the following is to contribute to restore Rovigo’s reputation. The research was based not only in a reliable bibliography, but also in my personal explorations as traveller.
Finite-difference modeling of the wavefield on the seismometry observations on NW Black Sea shelf
Authors: VERPAKHOVSKA O.O. , KOBOLEV V.P. , PYLYPENKO V.M.
Published: January 2023

In current seismic studies, special attention is given to the correctness of both the processing methods and the results of their using. In particularly, this applies to the migration procedure, which allows reproducing the deep structure of the research area directly from the observed wave field. In the Institute of Geophysics named after SI. Subbotin of the National Academy of Sciences of Ukraine, for many years, methods of migration and modeling of the wave field, which are theoretically based on the finite-difference method of solving differential equations, have been developed. Modeling the wave field makes it possible to identify useful waves in the real observed seismic field for the effective formation of a migration image of the geological environment and to confirm the correctness and accuracy of the reproduction of various types of disturbances on it. S.I. Subbotin Institute of geophysics of the National Academy of Sciences of Ukraine in 2013 on the continental slope of the northwestern part of the Black Sea, seismometry observations with reflection CDP (Common Deep Point) profiles were carried out. When processing the registered wave fields to form a depth image of the geological section, post-stack full-wave finite-difference migration was used. As a tool for assessing the correctness of the obtained results, the finite-difference modeling of the wave field is considered, which is based on the solution of the wave equation on a grid with a seven-point pattern.
Dobry start, ale nadal daleko do podium, czyli o pierwszych ustawowych regulacjach lobbingu w Niemczech na poziomie federalnym i krajowym
Authors:   Uniwersytet Gdański, Wiszowaty Marcin M.
Published: January 2023

On January 1, 2022, two German laws on the regulation of lobbying entered into force. While the Bavarian law is the third regulation of this type adopted in the Länder, the German-wide statutory lobbying regulation is a novelty. The aim of this article is – apart from presenting the latest German lobbying regulations, which have not been described so far in the Polish scientific literature – to answer the question about their assessment against the background of the standards developed in the legislative and scientific achievements in the world. Do the latest German lobbying regulations meet these standards or, on the contrary, do they duplicate the errors repeatedly described in the literature? Or maybe these regulations also contain innovative solutions that should be copied in the lobbying regulations of other countries? Finally, do Länder laws differ from federal laws and how? The assessment of the German lobbying laws is ambiguous. On the one hand, it looks like their authors got acquainted with the literature on the subject, in which the model of optimal regulation was formulated, and German laws contain even innovative solutions. On the other – the shortcomings of the regulation outweigh its advantages – which was already signaled at the stage of legislative works. The laws deserve revision, but are a good start on the way to effectively regulate and scrutinize lobbying activities in Germany.
Krajowa Rada Radiofonii i Telewizji – konstytucyjny organ regulacyjny
Authors:   Akademia Humanistyczno-Ekonomiczna w Łodzi, Filia w Jaśle, Małecka Elżbieta
Published: January 2023

The goal of the paper is to present the regulatory nature of the National Broadcasting Council.. The thesis of the paper is the statement that the National Broadcasting Council has been first stipulated as a regulatory body for the market of media services, and second as the body performing the tasks resulting from Art. 213 of the Constitution of the Republic of Poland. Status of the National Broadcasting Council is based on two acts of the Constitution of the Republic of Poland of 1997 and on the Broadcasting Act of 29th December 1992. The plane for the deliberations will be Polish legal regulations, shorthand records of the Sejm of the Republic of Poland, as well as scientific papers. The following methods were applied in the study: dogmatic-legal, analytic-synthetic.
Google a prawo do bycia zapomnianym w Internecie
Authors:   Uniwersytet Śląski w Katowicach, Forst Katarzyna
Published: January 2023

Development of new technologies and the emergence of the internet have made it necessary to discuss how to protect personal data online. In the European Union system, the right to personal data protection is regulated both in primary and secondary legislation. In 2016, the data protection regulation (RODO), which came into force in 2018 and it has become part of the national legal order in all European Union countries. The purpose of adopting this document was to strengthen and harmonise the protection of fundamental freedoms and right of individuals. The subject of particular interest became the right to be forgotten. The article discusses under what conditions a citizen has the right to have the data subject’s personal data deleted from Google’s search engine.
Gospodarczy LONG COVID – kontekst konstytucyjny i perspektywa ekonomiczna
Authors:   Uniwersytet Rzeszowski, Rabiej Ewelina , Kaliszczak Lidia ,   Uniwersytet Rzeszowski
Published: January 2023

The aim of this article is the analysis of the constitutional context of government interventions of the European Union states as a result of the COVID-19 pandemic, with an indication of the effects on economic freedom. An analysis was made of the constitutional provisions of the European Union member states in shaping the economic system and economic freedom guarantees, as well as a comparative analysis of three economic freedom indicators: Index of Economic Freedom, Economic Freedom of the World and The Oxford Covid-19 Government Response Tracker. Research showed that despite the constitutional guarantees of economic freedom, the scope and intensity of the preventive measures undertaken by the governments in order to counteract the health, social, and economic effects of the pandemic may cause a long-term restriction of freedom and democracy. The conclusions presented in this article are the result of research that is a continuation of analyses, the synthesis of which is presented in the publication „The constitutional principle of economic freedom and COVID-19 – state interventionism in pandemic conditions” (“Constitutional Law Review” 2021, no. 5/63).
Shaping the Relationship Between the Polish Constitution and European Union Law in the Adjudication of the Constitutional Tribunal
Authors:   Jagiellonian University in Cracow, Kos Katarzyna
Published: January 2023

In the article, the issue of the relationship between the Polish Constitution and European Union law is analysed from the perspective of its shaping in the adjudication of the Constitutional Tribunal. Firstly, the constitutional regulations that define the relationship between the Constitution and EU law will be analysed. This part of the article also includes the issues relating to the legal basis of the most commonly used instrument that shapes this relationship – the EU-friendly interpretation of the Constitution. Secondly, the contexts in which the Constitutional Tribunal refers to EU law are examined. The case study that is undertaken focuses on the instruments that prevent conflicts between EU law and the Constitution, inter alia legislative and interpretative instruments. The application of these methods in recent controversial judgments Ref. no. P 20/07 and Ref. no. K 3/21 concerning the relationship between the Polish Constitution and the EU law will be analysed.
Blocking of Content. Between Freedom of Speech and the Regulation of Digital Media
Authors:   War Studies University, Chałubińska-Jentkiewicz Katarzyna
Published: January 2023

Nowadays, the concept of digital media, is nothing new. The article refers to the conditions of legal change implied by the vast progress and revolutionary digital transformation that has taken place when the media, which are an integral part of the communication process, have entered the realm of image culture, a sphere where they obliterate traditional modes of communication, creating a new sphere of influence, without a clear separation between the sender and the receiver. Hence, digital content has become the basis for the construction of a new system of axiology, so relevant in terms of constitutional values.
INVESTIGATION ON DROPLET EVAPORATION CONSIDERING RADIATION HEAT TRANSFER BY A DEVELOPED LATTICE BOLTZMANN MODEL
Authors: Hong Haoran , Ma Xiaojing , Xu Jinliang , Ren Yong
Published: January 2023

Suspended droplet evaporation in high temperature is common seen and widely used in various industries. Different from the previous lattice Boltzmann model of liquid-vapor phase change, a newly developed model which can consider radiation heat transfer is proposed and used to simulate the suspended droplet evaporation process. This model is verified by the theoretical solutions and compared with the D2 law. It is found that the deviation between simulated results and the D2 line is much more obvious under high vapor temperature and small droplet size. And, the radiation heat-transfer ratio during droplet evaporation can reach 45.6% in our simulation, which indicates the importance of radiation heat transfer in droplet evaporation and the necessity of coupling radiation heat transfer into the liquid-vapor phase-change model under high temperature. Also, effects of extinction coefficient β and scattering albedo w on evaporation process are discussed by detailed analysis of streamlines and temperature distribution. Our model and results will benefit the understanding of radiation heat transfer in droplet evaporation process.
Offshore wind acceleration in the U.S. Atlantic coast and the 30 GW by 2030 target
Authors: Jost Katie , Xydis George
Published: January 2023

There is a growing interest in the United States of America to have a more significant role in the development of offshore wind power. In recent years, the country has begun to shift and drive towards a green economy, investing in clean renewables and technology that will be able to reduce carbon dioxide emissions. It is expected that offshore wind has the potential to become a primary source to supply energy to millions of Americans. In the next 10 years, the Biden administration has set a target to achieve close to 30 GW of offshore wind potential. With the existing offshore wind projects in place, many developers are continuing to make progress, but there are many limiting factors that could decide whether that goal will be achieved. A detailed analysis in the U.S. Atlantic coast was deemed necessary and light was shed to the licensing process towards the goal of 30 GW by 2030.
Fabrication progress detection for concrete T-girders based on improved Yolov4
Authors: Liang Dong , Yang Liu , Ma Chuankui , Yu Yang
Published: January 2023

Large precast concrete girder plants have many processes, long cycles and a large amount of data. This study proposes an improved Yolov4 object detection algorithm with a spatio-temporal relationship to detect each fabrication process of precast concrete girders. It realises the digitisation of the fabrication information of traditional precast concrete girder plants. Initially, adding upsampling and convolution layers to the Yolov4 base model enhances the feature extraction ability of the algorithm at different fabrication stages of precast concrete girders. The spatio-temporal relationship is adopted to determine the fabrication progress of precast concrete girders with identical features but are at various fabrication stages. Finally, this research conducts an application analysis of an actual precast concrete girder plant. The analysis result indicated that the improved Yolov4 algorithm significantly raises the mean average precision and average intersection over union in recognition. Besides, the spatio-temporal relationship effectively solves error detection problems caused by the similar appearance at different fabrication stages. This method provides practical support for digitising the fabrication data of traditional precast girder plants.
The Kidney Failure Risk Equation: Evaluation of Novel Input Variables including eGFR Estimated Using the CKD-EPI 2021 Equation in 59 Cohorts
Authors: Grams Morgan E. , Brunskill Nigel J. , Ballew Shoshana H. , Sang Yingying , Coresh Josef , Matsushita Kunihiro , Surapaneni Aditya , Bell Samira , Carrero Juan J. , Chodick Gabriel , Evans Marie , Heerspink Hiddo J.L. , Inker Lesley A. , Iseki Kunitoshi , Kalra Philip A. , Kirchner H. Lester , Lee Brian J. , Levin Adeera , Major Rupert W. , Medcalf James , Nadkarni Girish N. , Naimark David M.J. , Ricardo Ana C. , Sawhney Simon , Sood Manish M. , Staplin Natalie , Stempniewicz Nikita , Stengel Benedicte , Sumida Keiichi , Traynor Jamie P. , van den Brand Jan , Wen Chi-Pang , Woodward Mark , Yang Jae Won , Wang Angela Yee-Moon , Tangri Navdeep
Published: January 2023

Background

The kidney failure risk equation (KFRE) uses age, sex, GFR, and urine albumin-to-creatinine ratio (ACR) to predict kidney failure risk in people with GFR <60 ml/min per 1.73 m2.

Methods

Using 59 cohorts with 312,424 patients with CKD, we tested several modifications to the KFRE for their potential to improve the KFRE: using the CKD-EPI 2021 creatinine equation for eGFR, substituting 1-year average ACR for single-measure ACR and 1-year average eGFR in participants with high eGFR variability, and adding 2-year prior eGFR slope and cardiovascular comorbidities. We also assessed calibration of the KFRE in subgroups of eGFR and age before and after accounting for the competing risk of death.

Results

The KFRE remained accurate and well calibrated overall using the CKD-EPI 2021 eGFR equation. The other modifications did not improve KFRE performance. In subgroups of eGFR 45–59 ml/min per 1.73 m2 and in older adults using the 5-year time horizon, the KFRE demonstrated systematic underprediction and overprediction, respectively. We developed and tested a new model with a spline term in eGFR and incorporating the competing risk of mortality, resulting in more accurate calibration in those specific subgroups but not overall.

Conclusions

The original KFRE is generally accurate for eGFR <45 ml/min per 1.73 m2 when using the CKD-EPI 2021 equation. Incorporating competing risk methodology and splines for eGFR may improve calibration in low-risk settings with longer time horizons. Including historical averages, eGFR slopes, or a competing risk design did not meaningfully alter KFRE performance in most circumstances.
Çocuk Edebiyatında Engellilik Teması ile Karşılaşan Çocukların Engelliliği Algılamaları Üzerine Bir Araştırma
Authors: ELKATMIŞ Veysel , TURAN Lokman
Published: January 2023

Araştırmanın amacı, engellilik olgusunun işlendiği çocuk kitaplarıyla karşılaşan 5. sınıf öğrencilerinin engellilik olgusunu, okuma alışkanlığına, engelli yakını bulunma durumuna ve toplumsal cinsiyete göre nasıl algıladıklarını tespit etmektir. Çalışmada, nitel araştırma desenlerinden fenomenoloji (olgubilim) tercih edilmiştir. Araştırmada 5. sınıf öğrencilerinden oluşan 16 kişilik bir çalışma grubu belirlenmiştir. Çalışma grubundaki okuma alışkanlığı zayıf olan bazı öğrencilerin akıcı okuma becerisi kazanmamış olmalarından dolayı okuduklarını anlamama sorununun önüne geçmek adına uygulamada kullanılan metinler sesli olarak okunmuş ve çocukların okumalar sırasındaki tepkileri gözlenmiştir. Veri toplama araçları olarak görüşme ve gözlemlerden elde edilen dokümanlar kullanılmıştır. Verileri çeşitlendirmek amacıyla kütüphane kayıtları, öğrencilerin okur otobiyografileri ve Türkçe öğretmeninin yazdığı okur biyografileri kullanılmıştır. Öğrencilerin engellilik olgusunu algılamalarında; okuma alışkanlığı düzeyine, engelli yakını olma durumuna ve toplumsal cinsiyete göre bir fark olup olmadığı incelenmiştir. Elde edilen veriler içerik analizi yapılarak sınıflandırılmıştır. Çalışmada öğrencilerin algıları engellilik bilincinin oluşup oluşmadığına göre kategorilere ayrılmıştır. Buna göre engellilik bilincinin oluştuğunu gösteren kategori, çözüm odaklılık ve kabullenme; oluşmadığını gösteren kategori, farkında olmama, kaçınma, hastalık olarak görme, ön yargılı olma ve tedavi gerektirme şeklinde kavramsallaştırılmıştır. Çocukların engellilik olgusunu algılamalarının okuma alışkanlığı düzeyine göre değiştiği; engelli yakını olma durumuna ve toplumsal cinsiyete göre herhangi bir değişiklik göstermediği tespit edilmiştir.
Hızlı Seri Görsel Sunum (RSVP) Temelli Uygulamaların Ortaokul Öğrencilerinin Okuma Hızı ve Anlama Düzeylerine Etkisi
Authors: ÖNDER Ertuğrul , TOPÇUOĞLU ÜNAL Fulya
Published: January 2023

Bu çalışmanın amacı Hızlı, Seri, Görsel Sunum (RSVP) temelli uygulamaların ortaokul öğrencilerinin okuma ve anlama düzeylerine etkisini incelemektir. Araştırmanın temel problemi; “Hızlı, Seri, Görsel Sunum (RSVP) temelli uygulamaların ortaokul öğrencilerinin okuma hızı ve anlama düzeylerine etkisi var mıdır?” olarak belirlenmiştir. Çalışmada nicel araştırma yöntemlerinden ön test son test eşitlenmemiş kontrol gruplu yarı deneysel desen kullanılmıştır. Çalışma örneklemini Kütahya merkezdeki bir devlet ortaokulunun 7. sınıf öğrencileri oluşturmaktadır. Deney grubu ile gerçekleştirilen uygulama sonu yapılan son testte öğrencilerin dakikada okudukları kelime sayısında ve okuduğunu anlama düzeylerinde istatiksel olarak anlamlı bir artış görülmektedir. Deney grubu öğrencileri ön testte dakikada ortalama 116.84 kelime okurken swiftread ile gerçekleştirilen uygulamada 315.52 kelime okumuşlardır. Anlama testinde deney grubu öğrencileri ön testte 9.27 puan alırken son testte bu değer 11.21 olarak ölçülmüştür. Elde edilen veriler öğrencilerin uygulama sonrası hem daha hızlı okuduğunu hem de okuma hızı ile birlikte metni anlama seviyelerinin de arttığını ortaya koymaktadır.
Üstün Yetenekli Öğrencilerin Okuduğunu Anlama ile Dinlediğini Anlama Becerileri Arasındaki İlişki
Authors: ÖZCAN Suna
Published: January 2023

Dinleme ve okuma becerileri eğitimde yoğun bir şekilde kullanılan alıcı dil becerileridir. Eğitim – öğretime geçişle birlikte sistemli bir şekilde öğretimi amaçlanan bu becerilerdeki başarılar öğrencilerin hem dil becerilerinde hem de akademik becerilerinde önemli bir yer edinmektedir. Bu nedenle bu becerilerin gelişimi için yapılan eğitim-öğretim faaliyetlerinde bireysel farklılıkların dikkate alınması önemli hale gelmektedir. Bireysel farklılıkların dikkate alınması gereken gruplar arasında özel yetenekli/üstün yetenekli öğrenciler de yer almaktadır. Akranlarından farklı özellikler taşıyan bu bireylerin dinlediğini anlama ve okuduğunu anlama becerilerinin belirlenip buna uygun şekilde öğretim sürecinin farklılaştırılması eğitim haklarının kazandırılmasında önemlidir. Bu nedenle bu araştırmada özel yetenekli öğrencilerin alıcı dil becerileri olan dinlediğini ve okuduğunu anlama becerilerinin çeşitli demografik bilgiler doğrultusunda incelenmesi amaçlanmıştır. Bu amaç doğrultusunda 2021-2022 eğitim-öğretim yılında İstanbul’da bulunan iki farklı bilim ve sanat merkezinde eğitim gören 181 beşinci sınıf ve 65 altıncı sınıf özel yetenekli öğrenci olmak üzere 246 kişilik örneklem grubu olarak seçilmiştir. Araştırmanın amacı doğrultusunda ilişkisel tarama modeli ile veriler toplanmıştır. Verilerin analizinde SPSS paket programı kullanılmıştır. Elde edilen sonuçlara göre 5. sınıfa giden öğrencilerin dinlediğini ve okuduğunu anlama becerileri 6. sınıfa giden öğrencilere göre daha yüksektir. Kız öğrencilerin dinlediğini ve okuduğunu anlama becerileri erkeklere göre daha yüksektir. Özel yetenekli öğrencilerin okuduğunu anlama ile dinlediğini anlama becerileri arasında anlamlı ilişki olduğu belirlenmiştir.
concepto de trabajo decente
Authors: Souza-Mosqueda Elizabeth Leticia , Moreno-Reynaga Martin , Hermosillo-Tejeda Luis Ernesto
Published: January 2023

La presente investigación busca contribuir al análisis del reciente Plan de las Naciones Unidas para la Preservación del Medio Ambiente en el Mundo Agenda 2030, cuyo objetivo número ocho contempla la ne-cesidad de que todas las naciones la implementen en sus agendas, con enfasis en el trabajo decente, el cual establece que las personas que realicen una actividad productiva obtengan un ingreso justo, seguridad en el lugar de trabajo y protección social para sus familias. Todo esto implica una relación entre el trabajo decente y el crecimiento económico, observada directamente en los sectores productivos que sostienen una economía en particular. El presente artículo es una investigación de tipo documental con alcance explicativo, a partir del análisis de artículos científicos y publicaciones de organismos internacionales. La actualidad de este docu-mento radica en que se analizará la relación existente entre los conceptos de empleo decente y crecimiento económico en México, en el marco del impacto que la pandemia por covid-19 ocasionó en todos los sectores productivos y en el empleo. Se aterriza sobre ideas y conceptos específicos que muestran cómo debería verse reflejado en la sociedad y quiénes son los responsables de velar por este fin social.
Conjunction Agreement and the Coordinate Structure Constraint
Authors: Shen Zheng
Published: January 2023

A long-standing question in syntax is what role linear order plays in a hierarchical grammar. Phenomena that on the surface show sensitivity to linear order have been particularly illuminating. When agreeing with coordinated subjects with different gender features, participles in Bosnian-Croatian-Serbian (BCS), Slovenian, and other languages allow multiple options including agreeing with the linearly closest conjunct. This pattern motivated an analysis where linear order can play a role in a syntactic operation such as agreement (Marušič et al. 2015; Willer-Gold et al. 2016 among others). On the other hand, Murphy & Puškar (2018) show that the pattern can be accounted for without resorting to linear order. This paper provides novel evidence from Coordinate Structure Constraint violating movement in BCS to argue for the non-linear approach. If the argument is on the right track, agreement can be kept within syntax without resorting to PF conditions.
INVESTIGATION OF THE SURFACE QUALITY OF AA6082-ZrO2-Gr MMCs USING ABRASIVE WATERJET MACHINING
Authors: Karuppasamy Kannapiran , Ranganathan Baskaran
Published: January 2023

Aluminium metal matrix composites have wide applications in the aerospace and automotive industries due to their excellent physical properties like hardness, tensile strength, etc. The reinforcement of ZrO2 hard ceramic particles and soft solid lubricant graphite on AA6082 produces a high-strength composite. This research aims to fabricate AA6082-ZrO2-Gr MMCs with different compositions and evaluate the abrasive-waterjet-machining (AWJM) parameters in the machining of the fabricated composites, which eliminates the thermal distortion and damage to the work material. The experiments were conducted by varying the dominant process parameters such as water pressure, traverse speed, abrasive flow rate and mesh size. The kerf taper angle was affected by the traverse speed and water pressure, while the surface roughness was affected by the abrasive flow rate, mesh size and water pressure. The abrasive mesh size of 120 provided the best surface finish.
POTENTIAL BARRIER ESTIMATION WITH A GRAPHICAL METHOD
Authors: Merabet Souad , Djellil Bilal
Published: January 2023

In this work, a representative graphical method was used to estimate the potential barrier at grain boundaries in polycrystalline materials. The used equation for the determination of trapping density states is closely related to the doping concentration in the layer. The obtained results showed that this density is a crucial parameter for estimating the maximum barrier value. This parameter strongly depends on the grain size and, consequently, on the grain boundary width. The conduction (or transport) properties represented by the thermionic current and the effective mobility also prove this dependence. Also, the obtained results are in good agreement with the experientially measured values from previous works.
EFFECTS OF PRE-OXIDATION ON HOT CORROSION RESISTANCE OF Al–Si COATINGS
Authors: Lv Haishuang , Li Yanmei , Li Yabin , Fan Naiwen
Published: January 2023

In this study, effects of pre-oxidation on the hot corrosion behaviour of Al–Si coatings in a Na2SO4 and 25 w/% NaCl mixture at 900 °C were investigated. The results showed that after 120 h of corrosion, a large amount of β-NiAl residual was found with no obvious sulphides or oxidation in the pre-oxidised Al–Si coating. The pre-formed oxide film on the pre-oxidised coating prevented external O2– and species such as S2– and Cl– from the molten salts from directly contacting the coating and reduced the rate of TiO2 formation in the oxide layer, thus forming an Al2O3-based oxide film and reducing the growth rate of the oxide film on the coating surface. Cracking and peeling of the oxide film, caused by the internal stress owing to the difference in the thermal expansion coefficient between the oxides in the oxide layer, are suppressed; thus, the hot corrosion resistance of the coating is significantly improved.

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EFFECT OF THICKNESS REDUCTIONS ON MICROSTRUCTURE AND NANO-MECHANICAL PROPERTIES OF AZ31 MAGNESIUM ALLOY IN FLOW-FORMING
Authors: Zhang Han , Zhang Tingting , Zhang Jie , Yan Zhihang , Wang Wenxian
Published: January 2023

The effect of reducing the thinning rate when flow forming AZ31B magnesium alloy barrels on the microstructure, crystal orientation, micro-, nano- and macro-mechanical properties was investigated. The results demonstrate that when the magnesium alloy undergoes different degrees of plastic deformation after flow forming, the grain size and dislocation density inside the crystal change greatly, and the evolution pattern of the organization has a significant effect on the mechanical properties of the materials. The stress-strain curve of the cylindrical parts was obtained by nano-indentation and hardness. This is important to improve the mechanical properties of the magnesium alloy.
STUDY OF INTERFACIAL ADHESION OF PAVEMENT SEALANTS BASED ON MOLECULAR DYNAMICS
Authors: Huang Xiaofeng , Luo Junhui , Xie Cheng , Cheng Dadi , Tang Pengfei , Li Gang , Chen Jie
Published: January 2023

To study the performance of bitumen mixture pavement sealants from their micro-mechanisms, the physical properties of base bitumen, SBS-modified bitumen and epoxy resin sealant as well as the adhesive properties of sealant-aggregate interfaces were studied using a molecular dynamics simulation. The adhesion of a sealant-pavement crack wall was studied using a contact angle test based on the surface energy theory. The results show that the epoxy resin sealant has excellent adhesion properties. Its physical properties and interfacial adhesion work are more significant than those of base bitumen and SBS-modified bitumen. An increase in the SBS can improve base bitumen’s mechanical properties and interfacial interaction. The interaction between three kinds of crack sealants and aggregate is identified as mainly the physical adsorption behavior. The van der Waals force plays a significant role in the adhesion behavior of bitumen crack sealant-aggregate interface. In contrast, the electrostatic force and van der Waals forces significantly affect the epoxy resin binder-aggregate interface. The adhesion work of 90# base bitumen, SBS-modified bitumen and epoxy resin binder for the asphalt pavement crack wall is (37.76, 44.86 and 77.63) mJ/m2, respectively.
A SINGLE-LAYER FSS FOR S-, C-, X-, KU- AND K-BAND APPLICATIONS
Authors: Surendranath Srigitha , Subramanian Varalakshmi , Paulretnam Arthi Devarani , Azhagar Elakkiya
Published: January 2023

This research introduces an ultra-wideband frequency-selective surface (FSS) that offers a very good bandwidth for insulation and communication applications. It consists of two layers: a dielectric substrate layer and a metal layer. The basal layer, which is the substrate, is made of FR4; and the top patch, which is the metal, is made of copper. The FSS is constructed without using several layers or several resonators in a single unit cell. This single-sheet, planar-structure-based FSS has an ultra-level bandwidth of 20.3 GHz, ranging from 2.3 GHz to 22.6 GHz. It will be employed in microwave applications in the S, C, X, Ku, and K bands, with a centre frequency of 10.6 GHz. The polarisation and angle stability of the transverse electric (TE) and transverse magnetic (TM) modes are examined, and it was found that they are insensitive up to 90 degrees. Plots depicting the distribution of the magnetic field, surface current, and electric field are used to analyse the structure's physical mechanism. The performances from previous studies are compared and contrasted with that of the current work.
Encontrar un lugar y una voz: marginalidad y poesía femenina en Colombia
Authors: Toro  Murillo Alejandra
Published: January 2023

El presente artículo hace una revisión a la poesía escrita por mujeres en Colombia en el periodo comprendido entre la segunda mitad del siglo xix y la primera mitad del siglo xx, concentrándose en los momentos en los cuales, durante este lapso, se produjo el fenómeno de publicación de sus primeros libros de poemas. Esta pesquisa busca evaluar cómo estas autoras se gestaron un lugar en la poesía. Para esto se revisan, por un lado, los aspectos sociales y pragmáticos de este fenómeno, de acuerdo con los conceptos de campo literario e institución literaria de Bourdieu y de Dubois, respectivamente; y, por otro, a partir del análisis sobre lo que sucedió en el terreno de la palabra poética. Los resultados demuestran que el esfuerzo de las mujeres para ingresar al campo literario tuvo dos gestos a resaltar: el reclamo de un lugar que requirió buscar legitimación y la necesidad de hallar una propia voz, en las márgenes de lo canónico, lo que las hizo avanzar hacia una poesía posmodernista.
El lugar de la ópera en la poética de Ignacio de Luzán: entre la tragedia y las artes liberales
Authors: Martín Sáez Daniel
Published: January 2023

Ignacio de Luzán escribió la poética española más influyente del siglo xviii, en un período en el que la ópera italiana ocupaba un lugar esencial en todas las cortes de Europa. Sin embargo, este género recibe un tratamiento marginal en su obra. Esto puede resultar sorprendente en un autor que no solo conoció las óperas realizadas en España durante los reinados de Felipe V y Fernando VI, sino que además fue un gran defensor de Metastasio como poeta, traduciendo algunos de sus libretos por encargo de la corte. En este artículo analizamos el lugar del melodrama en su obra, mostrando la influencia recibida de las poéticas italianas, sobre todo de Crescimbeni, Gravina, Muratori y Maffei, que entendieron el género desde las ideas aristotélicas sobre la tragedia griega. Como veremos, la clave de su poética es la contraposición entre artes liberales y serviles, que le obliga a situar la música en un lugar inferior respecto a la poesía.
Poesías de Agripina Montes del Valle. Tomo I
Authors: Pombo Rafael
Published: January 2023

Del espíritu y el corazón de la autora del presente tomo básteme comunicar un rasgo a mis lectores: ella misma me exigió que en mi prólogo me abstuviese de elogiarla, complaciéndose sobremanera en mi idea de consagrarlo a estimular a un sexo en los esfuerzos de la inteligencia aplicados al desarrollo y mejoramiento de la sociedad; y a vindicar a este contra el funesto e irreflexivo desdén con que los hombres y las mujeres mismas, sobre todo en ciertos países, suelen pagar sus bien intencionadas producciones. Esta colección es, desde luego, sólo una muestra de lo que la señora del Valle puede hacer, y faltan en ella dos poesías sobresalientes que acaba de escribir con motivo del Centenario del libertador. 
Prólogo de Rafael Pombo. En Agripina Montes del Valle (1883), Poesías, Tomo I (pp. III-LII). Zalamea Hermanos. Versión digital: https://catalogoenlinea.bibliotecanacional.gov.co/client/es_ES/search/asset/62879/0
Del estruendo de la guerra al silencio de su rastro. Desplazamientos de la poesía de la violencia en Colombia
Authors: Clavijo Tavera Daniel
Published: January 2023

Este artículo busca dar cuenta de los cambios -expresivos, temáticos y enunciativos- que ha experimentado la poesía colombiana que se ha ocupado de los fenómenos de  violencia, desde mediados del siglo xx hasta la actualidad. El texto inicia con un recuento de ciertos desplazamientos de la práctica poética en distintos contextos alrededor del mundo, con el fin de inscribir las expresiones colombianas en dichos tránsitos. Posteriormente, con base en algunos esfuerzos historiográficos de periodización de la violencia en Colombia, se describen algunas de las diferencias más acentuadas entre las expresiones poéticas del llamado período de la Violencia y la que ha abordado las violencias relacionadas con el conflicto armado, para establecer las maneras y las implicaciones de lo que podría entenderse como un viraje hacia el silencio.
Una aproximación a la musicalización de textos poéticos en Chile: tres ejemplos de su desarrollo y su relación con el canon literario
Authors: Meza Alegría Gabriel
Published: January 2023

En este artículo analizo algunos aspectos claves del desarrollo y la evolución de las musicalizaciones de textos poéticos en Chile y profundizo en su relación con el canon literario. El análisis lo realizo tomando como referencia tres producciones de relevancia en el escenario músico-poético chileno: la musicalización del poema Alturas de Macchu Picchu de Pablo Neruda por Los Jaivas (1981), el disco Desiertos de amor (2011) de Raúl Zurita junto al grupo González y Los Asistentes, y la musicalización de poemas de Elicura Chihuailaf por el grupo Kalfu en su disco Trawvn = ReUnión (2017). En términos generales, el estudio propone que las musicalizaciones de poesía constituyen un aporte a los estudios literarios, ya que permiten ampliar las  perspectivas de análisis más allá de lo textual, lo que  ropicia un entendimiento más profundo de las  particularidades de la producción poética.
Alejandra Pizarnik y el no-lugar de los cuerpos poéticos: delirio y pulsión creadora
Authors: Pais Álvarez Natalia
Published: January 2023

El intimismo de Alejandra Pizarnik, tejedora de palabras de tormento y locura, deja entrever los infiernos  irracionales y musicales que atraviesan una particular expresión de psique poética: la palabra que se atreve a decir una noche que presagia elegía. La palabra herida y la vida fatalmente rota de esta autora ponen al lector en un diálogo permanente entre el vitalismo y el existencialismo. El propósito de este artículo es reflexionar sobre los límites de la voluntad humana y la relación entre vida y obra literaria, a partir de una disertación sobre los textos de Pizarnik, quien más que afanarse en embellecer la resignación, prefiere indagar acerca del destino y el sentido de la palabra poética, enjaulada e incapaz de expresar las heridas del ser. Busca, desde figuras retóricas precisas y de incuestionable impacto sensorial, el lugar de los cuerpos poéticos en los entresijos de una existencia inadaptada y sin brújula. Existencia que es espejo (o acaso abismo) de la realidad develada por una poesía filosófica en busca de sentido y deseo imposibles, pero cuya búsqueda sigue siendo un tópico necesario de la literatura.
Spatial Transcriptomics for FFPE utilizing 10x Genomics Visium v1
Authors: Houston Andrew
Published: January 2023

To detect gene expression spatially mapped onto formalin-fixed paraffin-embedded tissue samples adapted from the 10x Genomics Visium FFPE v1 protocol.
Protocol: Neutrophil/lymphocyte ratio and overall survival in patients with breast cancer: a cohort study in a Latin-American hospital v1
Authors: Sofia Cervera-Ocaña Martha
Published: January 2023

PURPOSE OF STUDY The primary objective of this study will be to determine the association between NLR and OS in patients with breast cancer in the gynecology department of Hospital Nacional Hipólito Unanue (HNHU), Lima, Peru between 2012 and 2014.
Production of Crude AAV Virus Extract v2
Authors: Institute for Brain Science Allen
Published: January 2023

This protocol is used to produce crude preps of AAV of any serotype. Note: Research reported in this publication was supported by the National Institute Of Mental Health of the National Institutes of Health under Award Numbers U19MH114830, RF1MH114126, and RF1MH121274. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
Canción vallenata: entre la tradición y los intereses comerciales
Authors: Posada Giraldo Consuelo
Published: January 2023

Resumen: El artículo revisa críticamente el papel protagónico que ha adquirido el Festival Vallenato en Valledupar y sus consecuencias para el conjunto de la tradición de las canciones vallenatas. Descriptores: Tradiciones populares; Vallenato; Festival Vallenato; Valledupar. Abstract: In this article, the author makes a critic revision of the outstanding role played by the Festival Vallenato in Valledupar and its consequences upon the ensemble of traditions of the Vallenato songs. Key words: Popular traditions; Vallenato; Vallenato Festival; Valledupar.
La última escala del Tramp Steamer: el doble, y de nuevo la errancia y el deterioro en una nouvelle de Álvaro Mutis
Authors: Cardona López José
Published: January 2023

Resumen: A partir de consideraciones teóricas sobre la forma literaria nouvelle, este artículo discute el desarrollo del tema del doble en La última escala del Tramp Steamer de Álvaro Mutis. También discute el deterioro y la condición errante del ser humano como otros dos temas de esta obra. Descriptores: Mutis, Álvaro; Nouvelle; Doble; Amor; Errancia; Deterioro. Abstract: Under theoretical considerations on the literary form nouvelle, this article discusses the development of the theme of the double in La última escala del Tramp Steamer by Álvaro Mutis. Also, it discusses the deterioration and the errant condition of the human being as other two themes of this work. Key words: Mutis, Álvaro; Nouvelle; Double; Love; Errancy; Deterioration
Génesis textual de El cine era mejor que la vida de Juan Diego Mejía
Authors: Orozco Wilson
Published: January 2023

Resumen: En este artículo, el autor analiza algunos aspectos de la génesis textual de la novela El cine era mejor que la vida (2000) del escritor colombiano Juan Diego Mejía. El punto de partida es la intertextualidad existente con varias obras del mismo escritor. La novela tiene como eje la figura del padre, contemplada por un narrador adulto que escenifica la posición y mirada de un niño. El narrador-niño y el personaje Mejía inician la historia con la ida al cine, una especie de pacto estético que los une. El cine, según Orozco, se constituye en una representación de los sueños y además encarna la unión con la irreconciliable realidad. En el artículo se demuestra la génesis textual a partir de la intertextualidad establecida con varios cuentos del mismo escritor, partiendo de la figura del padre en dos de ellos: en uno, “Un capitán para otro barco” (1986), existe sin nombre, y en otro, “Jinetes en cumpleaños” (1986), tiene una personalidad concreta y se le presenta como Esteban Aguilera. Adicionalmente, Orozco presenta otras variantes de la génesis a través de temas recurrentes del novelista. Descriptores: Novela colombiana; Génesis textual; Cine y literatura; Novela urbana; Mejía, Juan Diego; El cine era mejor que la vida. Abstract: In this article the author analyses some aspects of the genesis of the text of the novel El cine era mejor que la vida (2000) of the Colombian writer Juan Diego Mejía. He parts from the intertextuality of some writings of the author. The novel takes the father as an axis, seen by an adult narrator who represents the position and the point of view of a child. The child-narrator and Mejía begin the story with a coming to the movies, a kind of aesthetic treaty that joins them. According to Orozco, movies are representations of the dreams moreover; it incarnates the union of the irreconcilable reality. In this article it is showed the genesis of the text after the intertextuality established with various stories of the same writer. Taking the figure of the father in two of them: in the first “Un capitán para otro barco” (1986) he exists but is not named, and, in the other, “Jinetes en cumpleaños” (1986) he has a concrete personality and is presented as Esteban Aguilera. Additionally, Orozco presents other variations of the genesis through recurrent topics in the works of the novelist. Key words: Colombian Novel; Genesis of the Text; Urban Novel; Mejía, Juan Diego; El cine era mejor que la vida.
30 años de poesía colombiana: 9 metáforas y bibliografías
Authors: Bedoya Luis Iván
Published: January 2023

Resumen: La nota preliminar de esta copiosa y metódica compilación de Luis Iván Bedoya dice: “Este trabajo registra el resultado de la de revisión de la poesía colombiana de los poetas colombianos nacidos a lo largo de 30 años, entre 1942 y 1972, en cuanto al acervo bibliográfico encontrado y la determinación de nueve metáforas que concentran sus valores temáticos y expresivos. Los poemarios revisados, un poco más de 300, están integrados por libros de poesía, antologías y reuniones de obras de 60 poetas. Éstas han aparecido, también, durante 30 años así: las últimas en el 2002 y las primeras en 1972.” Esta selección contextualiza el trabajo estético de cada poeta “en torno a una metáfora que aglutina una o varias de sus obras, o a la elaboración cabal de poemas en torno a metáforas consolidadas por sus contemporáneos o antecesores”. Descriptores: Poesía colombiana; Bibliografía; Metáfora. Abstract: The preliminary notes of this copious and methodic compilation of Luis Ivan Bedoya says: “This work registers the result of a revision of the Colombian poetry and Colombian poets born around 30 years, between 1942 y 1972, in the concern of their bibliographic heap found and the determination of nine metaphors that form their thematic and expressive value. The collections of poems revised, a bit more than 300, are integrated by books of poetry, anthologies and collections of works of 60 poets. Those works have also appeared during 30 years as follows: the later in 2002 and the former in 1972.” The Bedoya’s selection is methodic because he has selected the writings based on a central question: the aesthetic work of each poet “around a metaphor that agglutinates one or various works or the exact elaboration of the poems around metaphors consolidated by their contemporary and predecessors”. Key words: Colombian Poetry; Bibliography; Metaphor.
Narrativas de la alimentación: discurso contestatario de los descalzos ante los ilustrados en Manuela de Eugenio Díaz Castro
Authors: Areiza Serna Laura
Published: January 2023

Este artículo explora las narrativas de la alimentación en Manuela de Eugenio Díaz Castro. Específicamente estudia los significados y símbolos de estas narrativas donde se manifiestan las tensiones y las contradicciones de una Nación postindepentista e incipiente en su desarrollo económico. Se resalta la heterogeneidad de discursos para demostrar que los hábitos alimenticios no solo se corresponden con aspectos de la vida rural del siglo XIX, sino que también dilucidan el discurso político, económico y social que subyace en la obra. Estas narrativas dan cuenta de un mestizaje culinario en donde se ven retratadas las capas sociales y sus respectivas ideologías representadas en la clase popular o descalza, cuyo discurso es contestatario, ante los ilustrados calzados.
Veinte años en la literatura fantástica colombiana: 1990-2010
Authors: Burgos López Campo Ricardo
Published: January 2023

A fin de proporcionar un panorama de la literatura fantástica colombiana en el período que va de 1990 a 2010, dividiremos nuestra exposición en tres momentos. En el primero analizaremos un corpus de obras representativas de las letras fantásticas colombianas en el lapso comprendido entre 1990 y 2010, obras que sobresalen tanto por sus apuestas temáticas como formales. En el segundo momento, señalaremos algunos libros que denominamos “clones”, es decir, textos de autores colombianos que copian modelos usuales en las letras fantásticas de latitudes distintas a la nuestra, que quizá no tienen tanto valor estético como las obras apuntadas en el momento inicial, pero que desde la perspectiva de un estudio cultural, merecerían ser señaladas. En el momento final, apuntaremos algunas conclusiones.
género ensayístico: autofiguración y autorrepresentación de la niñez en Diario de Hernando Téllez
Authors: Galeano Sánchez Juan Camilo
Published: January 2023

Al ser el ensayo uno de los géneros literarios menos explorados en la actualidad en Colombia, el presente artículo busca revisar sus cualidades estructurales y de fondo mediante su caracterización teórica y el análisis de dos de sus componentes fundamentales: la autofiguración y la autorrepresentación. Para poner a prueba esta revisión, se parte de aquellos ensayos del texto Diario, del escritor bogotano Hernando Téllez, que aluden directamente a la figura del infante para determinar la relevancia de la exposición de sí mismo en aras de generar opiniones de distinta índole en la recepción de la obra.